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Merge branch 'akpm' (patches from Andrew)

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Merge yet more updates from Andrew Morton:

 - Oleg's "wait/ptrace: assume __WALL if the child is traced".  It's a
   kernel-based workaround for existing userspace issues.

 - A few hotfixes

 - befs cleanups

 - nilfs2 updates

 - sys_wait() changes

 - kexec updates

 - kdump

 - scripts/gdb updates

 - the last of the MM queue

 - a few other misc things

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (84 commits)
  kgdb: depends on VT
  drm/amdgpu: make amdgpu_mn_get wait for mmap_sem killable
  drm/radeon: make radeon_mn_get wait for mmap_sem killable
  drm/i915: make i915_gem_mmap_ioctl wait for mmap_sem killable
  uprobes: wait for mmap_sem for write killable
  prctl: make PR_SET_THP_DISABLE wait for mmap_sem killable
  exec: make exec path waiting for mmap_sem killable
  aio: make aio_setup_ring killable
  coredump: make coredump_wait wait for mmap_sem for write killable
  vdso: make arch_setup_additional_pages wait for mmap_sem for write killable
  ipc, shm: make shmem attach/detach wait for mmap_sem killable
  mm, fork: make dup_mmap wait for mmap_sem for write killable
  mm, proc: make clear_refs killable
  mm: make vm_brk killable
  mm, elf: handle vm_brk error
  mm, aout: handle vm_brk failures
  mm: make vm_munmap killable
  mm: make vm_mmap killable
  mm: make mmap_sem for write waits killable for mm syscalls
  MAINTAINERS: add co-maintainer for scripts/gdb
  ...
This commit is contained in:
Linus Torvalds 2016-05-23 19:42:28 -07:00
commit 84787c572d
129 changed files with 1358 additions and 789 deletions
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5
Documentation/filesystems/nilfs2.txt
View File

@ -268,3 +268,8 @@ among NILFS2 files can be depicted as follows:
( regular file, directory, or symlink )
For detail on the format of each file, please see include/linux/nilfs2_fs.h.
There are no patents or other intellectual property that we protect
with regard to the design of NILFS2. It is allowed to replicate the
design in hopes that other operating systems could share (mount, read,
write, etc.) data stored in this format.

21
Documentation/gdb-kernel-debugging.txt
View File

@ -139,6 +139,27 @@ Examples of using the Linux-provided gdb helpers
start_comm = "swapper/2\000\000\000\000\000\000"
}
o Dig into a radix tree data structure, such as the IRQ descriptors:
(gdb) print (struct irq_desc)$lx_radix_tree_lookup(irq_desc_tree, 18)
$6 = {
irq_common_data = {
state_use_accessors = 67584,
handler_data = 0x0 <__vectors_start>,
msi_desc = 0x0 <__vectors_start>,
affinity = {{
bits = {65535}
}}
},
irq_data = {
mask = 0,
irq = 18,
hwirq = 27,
common = 0xee803d80,
chip = 0xc0eb0854 <gic_data>,
domain = 0xee808000,
parent_data = 0x0 <__vectors_start>,
chip_data = 0xc0eb0854 <gic_data>
} <... trimmed ...>
List of commands and functions
------------------------------

96
Documentation/kdump/gdbmacros.txt
View File

@ -15,15 +15,16 @@
define bttnobp
set $tasks_off=((size_t)&((struct task_struct *)0)->tasks)
set $pid_off=((size_t)&((struct task_struct *)0)->pids[1].pid_list.next)
set $pid_off=((size_t)&((struct task_struct *)0)->thread_group.next)
set $init_t=&init_task
set $next_t=(((char *)($init_t->tasks).next) - $tasks_off)
set var $stacksize = sizeof(union thread_union)
while ($next_t != $init_t)
set $next_t=(struct task_struct *)$next_t
printf "\npid %d; comm %s:\n", $next_t.pid, $next_t.comm
printf "===================\n"
set var $stackp = $next_t.thread.esp
set var $stack_top = ($stackp & ~4095) + 4096
set var $stackp = $next_t.thread.sp
set var $stack_top = ($stackp & ~($stacksize - 1)) + $stacksize
while ($stackp < $stack_top)
if (*($stackp) > _stext && *($stackp) < _sinittext)
@ -31,13 +32,13 @@ define bttnobp
end
set $stackp += 4
end
set $next_th=(((char *)$next_t->pids[1].pid_list.next) - $pid_off)
set $next_th=(((char *)$next_t->thread_group.next) - $pid_off)
while ($next_th != $next_t)
set $next_th=(struct task_struct *)$next_th
printf "\npid %d; comm %s:\n", $next_t.pid, $next_t.comm
printf "===================\n"
set var $stackp = $next_t.thread.esp
set var $stack_top = ($stackp & ~4095) + 4096
set var $stackp = $next_t.thread.sp
set var $stack_top = ($stackp & ~($stacksize - 1)) + stacksize
while ($stackp < $stack_top)
if (*($stackp) > _stext && *($stackp) < _sinittext)
@ -45,7 +46,7 @@ define bttnobp
end
set $stackp += 4
end
set $next_th=(((char *)$next_th->pids[1].pid_list.next) - $pid_off)
set $next_th=(((char *)$next_th->thread_group.next) - $pid_off)
end
set $next_t=(char *)($next_t->tasks.next) - $tasks_off
end
@ -54,42 +55,44 @@ document bttnobp
dump all thread stack traces on a kernel compiled with !CONFIG_FRAME_POINTER
end
define btthreadstack
set var $pid_task = $arg0
printf "\npid %d; comm %s:\n", $pid_task.pid, $pid_task.comm
printf "task struct: "
print $pid_task
printf "===================\n"
set var $stackp = $pid_task.thread.sp
set var $stacksize = sizeof(union thread_union)
set var $stack_top = ($stackp & ~($stacksize - 1)) + $stacksize
set var $stack_bot = ($stackp & ~($stacksize - 1))
set $stackp = *((unsigned long *) $stackp)
while (($stackp < $stack_top) && ($stackp > $stack_bot))
set var $addr = *(((unsigned long *) $stackp) + 1)
info symbol $addr
set $stackp = *((unsigned long *) $stackp)
end
end
document btthreadstack
dump a thread stack using the given task structure pointer
end
define btt
set $tasks_off=((size_t)&((struct task_struct *)0)->tasks)
set $pid_off=((size_t)&((struct task_struct *)0)->pids[1].pid_list.next)
set $pid_off=((size_t)&((struct task_struct *)0)->thread_group.next)
set $init_t=&init_task
set $next_t=(((char *)($init_t->tasks).next) - $tasks_off)
while ($next_t != $init_t)
set $next_t=(struct task_struct *)$next_t
printf "\npid %d; comm %s:\n", $next_t.pid, $next_t.comm
printf "===================\n"
set var $stackp = $next_t.thread.esp
set var $stack_top = ($stackp & ~4095) + 4096
set var $stack_bot = ($stackp & ~4095)
btthreadstack $next_t
set $stackp = *($stackp)
while (($stackp < $stack_top) && ($stackp > $stack_bot))
set var $addr = *($stackp + 4)
info symbol $addr
set $stackp = *($stackp)
end
set $next_th=(((char *)$next_t->pids[1].pid_list.next) - $pid_off)
set $next_th=(((char *)$next_t->thread_group.next) - $pid_off)
while ($next_th != $next_t)
set $next_th=(struct task_struct *)$next_th
printf "\npid %d; comm %s:\n", $next_t.pid, $next_t.comm
printf "===================\n"
set var $stackp = $next_t.thread.esp
set var $stack_top = ($stackp & ~4095) + 4096
set var $stack_bot = ($stackp & ~4095)
set $stackp = *($stackp)
while (($stackp < $stack_top) && ($stackp > $stack_bot))
set var $addr = *($stackp + 4)
info symbol $addr
set $stackp = *($stackp)
end
set $next_th=(((char *)$next_th->pids[1].pid_list.next) - $pid_off)
btthreadstack $next_th
set $next_th=(((char *)$next_th->thread_group.next) - $pid_off)
end
set $next_t=(char *)($next_t->tasks.next) - $tasks_off
end
@ -101,7 +104,7 @@ end
define btpid
set var $pid = $arg0
set $tasks_off=((size_t)&((struct task_struct *)0)->tasks)
set $pid_off=((size_t)&((struct task_struct *)0)->pids[1].pid_list.next)
set $pid_off=((size_t)&((struct task_struct *)0)->thread_group.next)
set $init_t=&init_task
set $next_t=(((char *)($init_t->tasks).next) - $tasks_off)
set var $pid_task = 0
@ -113,29 +116,18 @@ define btpid
set $pid_task = $next_t
end
set $next_th=(((char *)$next_t->pids[1].pid_list.next) - $pid_off)
set $next_th=(((char *)$next_t->thread_group.next) - $pid_off)
while ($next_th != $next_t)
set $next_th=(struct task_struct *)$next_th
if ($next_th.pid == $pid)
set $pid_task = $next_th
end
set $next_th=(((char *)$next_th->pids[1].pid_list.next) - $pid_off)
set $next_th=(((char *)$next_th->thread_group.next) - $pid_off)
end
set $next_t=(char *)($next_t->tasks.next) - $tasks_off
end
printf "\npid %d; comm %s:\n", $pid_task.pid, $pid_task.comm
printf "===================\n"
set var $stackp = $pid_task.thread.esp
set var $stack_top = ($stackp & ~4095) + 4096
set var $stack_bot = ($stackp & ~4095)
set $stackp = *($stackp)
while (($stackp < $stack_top) && ($stackp > $stack_bot))
set var $addr = *($stackp + 4)
info symbol $addr
set $stackp = *($stackp)
end
btthreadstack $pid_task
end
document btpid
backtrace of pid
@ -145,7 +137,7 @@ end
define trapinfo
set var $pid = $arg0
set $tasks_off=((size_t)&((struct task_struct *)0)->tasks)
set $pid_off=((size_t)&((struct task_struct *)0)->pids[1].pid_list.next)
set $pid_off=((size_t)&((struct task_struct *)0)->thread_group.next)
set $init_t=&init_task
set $next_t=(((char *)($init_t->tasks).next) - $tasks_off)
set var $pid_task = 0
@ -157,13 +149,13 @@ define trapinfo
set $pid_task = $next_t
end
set $next_th=(((char *)$next_t->pids[1].pid_list.next) - $pid_off)
set $next_th=(((char *)$next_t->thread_group.next) - $pid_off)
while ($next_th != $next_t)
set $next_th=(struct task_struct *)$next_th
if ($next_th.pid == $pid)
set $pid_task = $next_th
end
set $next_th=(((char *)$next_th->pids[1].pid_list.next) - $pid_off)
set $next_th=(((char *)$next_th->thread_group.next) - $pid_off)
end
set $next_t=(char *)($next_t->tasks.next) - $tasks_off
end

10
Kbuild
View File

@ -5,6 +5,7 @@
# 2) Generate timeconst.h
# 3) Generate asm-offsets.h (may need bounds.h and timeconst.h)
# 4) Check for missing system calls
# 5) Generate constants.py (may need bounds.h)
# Default sed regexp - multiline due to syntax constraints
define sed-y
@ -96,5 +97,14 @@ quiet_cmd_syscalls = CALL $<
missing-syscalls: scripts/checksyscalls.sh $(offsets-file) FORCE
$(call cmd,syscalls)
#####
# 5) Generate constants for Python GDB integration
#
extra-$(CONFIG_GDB_SCRIPTS) += build_constants_py
build_constants_py: $(obj)/$(timeconst-file) $(obj)/$(bounds-file)
@$(MAKE) $(build)=scripts/gdb/linux $@
# Keep these three files during make clean
no-clean-files := $(bounds-file) $(offsets-file) $(timeconst-file)

2
MAINTAINERS
View File

@ -4993,6 +4993,7 @@ F: drivers/scsi/gdt*
GDB KERNEL DEBUGGING HELPER SCRIPTS
M: Jan Kiszka <jan.kiszka@siemens.com>
M: Kieran Bingham <kieran@bingham.xyz>
S: Supported
F: scripts/gdb/
@ -8038,6 +8039,7 @@ NILFS2 FILESYSTEM
M: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
L: linux-nilfs@vger.kernel.org
W: http://nilfs.sourceforge.net/
W: http://nilfs.osdn.jp/
T: git git://github.com/konis/nilfs2.git
S: Supported
F: Documentation/filesystems/nilfs2.txt

1
arch/arm/configs/bcm_defconfig
View File

@ -12,7 +12,6 @@ CONFIG_CGROUPS=y
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
CONFIG_CGROUP_SCHED=y
CONFIG_BLK_CGROUP=y
CONFIG_NAMESPACES=y

1
arch/arm/configs/zx_defconfig
View File

@ -7,7 +7,6 @@ CONFIG_CGROUPS=y
CONFIG_CGROUP_DEBUG=y
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
CONFIG_CGROUP_SCHED=y
CONFIG_RT_GROUP_SCHED=y
CONFIG_NAMESPACES=y

3
arch/arm/kernel/process.c
View File

@ -420,7 +420,8 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
npages = 1; /* for sigpage */
npages += vdso_total_pages;
down_write(&mm->mmap_sem);
if (down_write_killable(&mm->mmap_sem))
return -EINTR;
hint = sigpage_addr(mm, npages);
addr = get_unmapped_area(NULL, hint, npages << PAGE_SHIFT, 0, 0);
if (IS_ERR_VALUE(addr)) {

6
arch/arm64/kernel/vdso.c
View File

@ -95,7 +95,8 @@ int aarch32_setup_vectors_page(struct linux_binprm *bprm, int uses_interp)
};
void *ret;
down_write(&mm->mmap_sem);
if (down_write_killable(&mm->mmap_sem))
return -EINTR;
current->mm->context.vdso = (void *)addr;
/* Map vectors page at the high address. */
@ -163,7 +164,8 @@ int arch_setup_additional_pages(struct linux_binprm *bprm,
/* Be sure to map the data page */
vdso_mapping_len = vdso_text_len + PAGE_SIZE;
down_write(&mm->mmap_sem);
if (down_write_killable(&mm->mmap_sem))
return -EINTR;
vdso_base = get_unmapped_area(NULL, 0, vdso_mapping_len, 0, 0);
if (IS_ERR_VALUE(vdso_base)) {
ret = ERR_PTR(vdso_base);

3
arch/hexagon/kernel/vdso.c
View File

@ -65,7 +65,8 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
unsigned long vdso_base;
struct mm_struct *mm = current->mm;
down_write(&mm->mmap_sem);
if (down_write_killable(&mm->mmap_sem))
return -EINTR;
/* Try to get it loaded right near ld.so/glibc. */
vdso_base = STACK_TOP;

1
arch/m32r/kernel/smp.c
View File

@ -164,6 +164,7 @@ void smp_flush_cache_all(void)
spin_unlock(&flushcache_lock);
preempt_enable();
}
EXPORT_SYMBOL(smp_flush_cache_all);
void smp_flush_cache_all_interrupt(void)
{

1
arch/mips/Kconfig
View File

@ -3117,6 +3117,7 @@ config MIPS32_N32
config BINFMT_ELF32
bool
default y if MIPS32_O32 || MIPS32_N32
select ELFCORE
endmenu

1
arch/mips/configs/db1xxx_defconfig
View File

@ -18,7 +18,6 @@ CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CPUSETS=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
CONFIG_MEMCG=y
CONFIG_MEMCG_SWAP=y
CONFIG_MEMCG_KMEM=y

1
arch/mips/configs/loongson3_defconfig
View File

@ -25,7 +25,6 @@ CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_CPUSETS=y
CONFIG_RESOURCE_COUNTERS=y
CONFIG_MEMCG=y
CONFIG_MEMCG_SWAP=y
CONFIG_BLK_CGROUP=y

3
arch/mips/kernel/vdso.c
View File

@ -104,7 +104,8 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
struct resource gic_res;
int ret;
down_write(&mm->mmap_sem);
if (down_write_killable(&mm->mmap_sem))
return -EINTR;
/*
* Determine total area size. This includes the VDSO data itself, the

1
arch/mn10300/configs/asb2364_defconfig
View File

@ -11,7 +11,6 @@ CONFIG_CGROUPS=y
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
CONFIG_RELAY=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_EXPERT=y

3
arch/powerpc/kernel/vdso.c
View File

@ -195,7 +195,8 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
* and end up putting it elsewhere.
* Add enough to the size so that the result can be aligned.
*/
down_write(&mm->mmap_sem);
if (down_write_killable(&mm->mmap_sem))
return -EINTR;
vdso_base = get_unmapped_area(NULL, vdso_base,
(vdso_pages << PAGE_SHIFT) +
((VDSO_ALIGNMENT - 1) & PAGE_MASK),

28
arch/s390/kernel/machine_kexec.c
View File

@ -43,13 +43,13 @@ static int machine_kdump_pm_cb(struct notifier_block *nb, unsigned long action,
switch (action) {
case PM_SUSPEND_PREPARE:
case PM_HIBERNATION_PREPARE:
if (crashk_res.start)
crash_map_reserved_pages();
if (kexec_crash_image)
arch_kexec_unprotect_crashkres();
break;
case PM_POST_SUSPEND:
case PM_POST_HIBERNATION:
if (crashk_res.start)
crash_unmap_reserved_pages();
if (kexec_crash_image)
arch_kexec_protect_crashkres();
break;
default:
return NOTIFY_DONE;
@ -60,6 +60,8 @@ static int machine_kdump_pm_cb(struct notifier_block *nb, unsigned long action,
static int __init machine_kdump_pm_init(void)
{
pm_notifier(machine_kdump_pm_cb, 0);
/* Create initial mapping for crashkernel memory */
arch_kexec_unprotect_crashkres();
return 0;
}
arch_initcall(machine_kdump_pm_init);
@ -146,6 +148,8 @@ static int kdump_csum_valid(struct kimage *image)
#endif
}
#ifdef CONFIG_CRASH_DUMP
/*
* Map or unmap crashkernel memory
*/
@ -167,21 +171,25 @@ static void crash_map_pages(int enable)
}
/*
* Map crashkernel memory
* Unmap crashkernel memory
*/
void crash_map_reserved_pages(void)
void arch_kexec_protect_crashkres(void)
{
crash_map_pages(1);
if (crashk_res.end)
crash_map_pages(0);
}
/*
* Unmap crashkernel memory
* Map crashkernel memory
*/
void crash_unmap_reserved_pages(void)
void arch_kexec_unprotect_crashkres(void)
{
crash_map_pages(0);
if (crashk_res.end)
crash_map_pages(1);
}
#endif
/*
* Give back memory to hypervisor before new kdump is loaded
*/

3
arch/s390/kernel/vdso.c
View File

@ -216,7 +216,8 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
* it at vdso_base which is the "natural" base for it, but we might
* fail and end up putting it elsewhere.
*/
down_write(&mm->mmap_sem);
if (down_write_killable(&mm->mmap_sem))
return -EINTR;
vdso_base = get_unmapped_area(NULL, 0, vdso_pages << PAGE_SHIFT, 0, 0);
if (IS_ERR_VALUE(vdso_base)) {
rc = vdso_base;

1
arch/sh/configs/apsh4ad0a_defconfig
View File

@ -10,7 +10,6 @@ CONFIG_CGROUPS=y
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
CONFIG_CGROUP_MEMCG=y
CONFIG_BLK_CGROUP=y
CONFIG_NAMESPACES=y

1
arch/sh/configs/sdk7786_defconfig
View File

@ -17,7 +17,6 @@ CONFIG_CGROUP_DEVICE=y
CONFIG_CPUSETS=y
# CONFIG_PROC_PID_CPUSET is not set
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
CONFIG_CGROUP_MEMCG=y
CONFIG_CGROUP_MEMCG_SWAP=y
CONFIG_CGROUP_SCHED=y

1
arch/sh/configs/se7206_defconfig
View File

@ -10,7 +10,6 @@ CONFIG_CGROUPS=y
CONFIG_CGROUP_DEBUG=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
CONFIG_CGROUP_MEMCG=y
CONFIG_RELAY=y
CONFIG_NAMESPACES=y

1
arch/sh/configs/shx3_defconfig
View File

@ -12,7 +12,6 @@ CONFIG_CGROUPS=y
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
CONFIG_CGROUP_MEMCG=y
CONFIG_RELAY=y
CONFIG_NAMESPACES=y

1
arch/sh/configs/urquell_defconfig
View File

@ -14,7 +14,6 @@ CONFIG_CGROUP_DEVICE=y
CONFIG_CPUSETS=y
# CONFIG_PROC_PID_CPUSET is not set
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
CONFIG_CGROUP_MEMCG=y
CONFIG_CGROUP_MEMCG_SWAP=y
CONFIG_CGROUP_SCHED=y

4
arch/sh/kernel/vsyscall/vsyscall.c
View File

@ -64,7 +64,9 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
unsigned long addr;
int ret;
down_write(&mm->mmap_sem);
if (down_write_killable(&mm->mmap_sem))
return -EINTR;
addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, 0);
if (IS_ERR_VALUE(addr)) {
ret = addr;

1
arch/tile/configs/tilegx_defconfig
View File

@ -16,7 +16,6 @@ CONFIG_CGROUP_DEBUG=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CPUSETS=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
CONFIG_CGROUP_SCHED=y
CONFIG_RT_GROUP_SCHED=y
CONFIG_BLK_CGROUP=y

1
arch/tile/configs/tilepro_defconfig
View File

@ -15,7 +15,6 @@ CONFIG_CGROUP_DEBUG=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CPUSETS=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
CONFIG_CGROUP_SCHED=y
CONFIG_RT_GROUP_SCHED=y
CONFIG_BLK_CGROUP=y

1
arch/um/configs/i386_defconfig
View File

@ -17,7 +17,6 @@ CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CPUSETS=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
CONFIG_CGROUP_SCHED=y
CONFIG_BLK_CGROUP=y
# CONFIG_PID_NS is not set

1
arch/um/configs/x86_64_defconfig
View File

@ -15,7 +15,6 @@ CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CPUSETS=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
CONFIG_CGROUP_SCHED=y
CONFIG_BLK_CGROUP=y
# CONFIG_PID_NS is not set

1
arch/x86/configs/i386_defconfig
View File

@ -17,7 +17,6 @@ CONFIG_CGROUPS=y
CONFIG_CGROUP_FREEZER=y
CONFIG_CPUSETS=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
CONFIG_CGROUP_SCHED=y
CONFIG_BLK_DEV_INITRD=y
# CONFIG_COMPAT_BRK is not set

1
arch/x86/configs/x86_64_defconfig
View File

@ -16,7 +16,6 @@ CONFIG_CGROUPS=y
CONFIG_CGROUP_FREEZER=y
CONFIG_CPUSETS=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
CONFIG_CGROUP_SCHED=y
CONFIG_BLK_DEV_INITRD=y
# CONFIG_COMPAT_BRK is not set

3
arch/x86/entry/vdso/vma.c
View File

@ -163,7 +163,8 @@ static int map_vdso(const struct vdso_image *image, bool calculate_addr)
addr = 0;
}
down_write(&mm->mmap_sem);
if (down_write_killable(&mm->mmap_sem))
return -EINTR;
addr = get_unmapped_area(NULL, addr,
image->size - image->sym_vvar_start, 0, 0);

24
arch/x86/ia32/ia32_aout.c
View File

@ -116,13 +116,13 @@ static struct linux_binfmt aout_format = {
.min_coredump = PAGE_SIZE
};
static void set_brk(unsigned long start, unsigned long end)
static unsigned long set_brk(unsigned long start, unsigned long end)
{
start = PAGE_ALIGN(start);
end = PAGE_ALIGN(end);
if (end <= start)
return;
vm_brk(start, end - start);
return start;
return vm_brk(start, end - start);
}
#ifdef CONFIG_COREDUMP
@ -349,7 +349,10 @@ static int load_aout_binary(struct linux_binprm *bprm)
#endif
if (!bprm->file->f_op->mmap || (fd_offset & ~PAGE_MASK) != 0) {
vm_brk(N_TXTADDR(ex), ex.a_text+ex.a_data);
error = vm_brk(N_TXTADDR(ex), ex.a_text+ex.a_data);
if (IS_ERR_VALUE(error))
return error;
read_code(bprm->file, N_TXTADDR(ex), fd_offset,
ex.a_text+ex.a_data);
goto beyond_if;
@ -372,10 +375,13 @@ static int load_aout_binary(struct linux_binprm *bprm)
if (error != N_DATADDR(ex))
return error;
}
beyond_if:
set_binfmt(&aout_format);
set_brk(current->mm->start_brk, current->mm->brk);
beyond_if:
error = set_brk(current->mm->start_brk, current->mm->brk);
if (IS_ERR_VALUE(error))
return error;
set_binfmt(&aout_format);
current->mm->start_stack =
(unsigned long)create_aout_tables((char __user *)bprm->p, bprm);
@ -434,7 +440,9 @@ static int load_aout_library(struct file *file)
error_time = jiffies;
}
#endif
vm_brk(start_addr, ex.a_text + ex.a_data + ex.a_bss);
retval = vm_brk(start_addr, ex.a_text + ex.a_data + ex.a_bss);
if (IS_ERR_VALUE(retval))
goto out;
read_code(file, start_addr, N_TXTOFF(ex),
ex.a_text + ex.a_data);

45
arch/x86/kernel/machine_kexec_64.c
View File

@ -538,3 +538,48 @@ overflow:
return -ENOEXEC;
}
#endif /* CONFIG_KEXEC_FILE */
static int
kexec_mark_range(unsigned long start, unsigned long end, bool protect)
{
struct page *page;
unsigned int nr_pages;
/*
* For physical range: [start, end]. We must skip the unassigned
* crashk resource with zero-valued "end" member.
*/
if (!end || start > end)
return 0;
page = pfn_to_page(start >> PAGE_SHIFT);
nr_pages = (end >> PAGE_SHIFT) - (start >> PAGE_SHIFT) + 1;
if (protect)
return set_pages_ro(page, nr_pages);
else
return set_pages_rw(page, nr_pages);
}
static void kexec_mark_crashkres(bool protect)
{
unsigned long control;
kexec_mark_range(crashk_low_res.start, crashk_low_res.end, protect);
/* Don't touch the control code page used in crash_kexec().*/
control = PFN_PHYS(page_to_pfn(kexec_crash_image->control_code_page));
/* Control code page is located in the 2nd page. */
kexec_mark_range(crashk_res.start, control + PAGE_SIZE - 1, protect);
control += KEXEC_CONTROL_PAGE_SIZE;
kexec_mark_range(control, crashk_res.end, protect);
}
void arch_kexec_protect_crashkres(void)
{
kexec_mark_crashkres(true);
}
void arch_kexec_unprotect_crashkres(void)
{
kexec_mark_crashkres(false);
}

3
arch/x86/um/vdso/vma.c
View File

@ -61,7 +61,8 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
if (!vdso_enabled)
return 0;
down_write(&mm->mmap_sem);
if (down_write_killable(&mm->mmap_sem))
return -EINTR;
err = install_special_mapping(mm, um_vdso_addr, PAGE_SIZE,
VM_READ|VM_EXEC|

1
arch/xtensa/configs/generic_kc705_defconfig
View File

@ -11,7 +11,6 @@ CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CPUSETS=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
CONFIG_MEMCG=y
CONFIG_NAMESPACES=y
CONFIG_SCHED_AUTOGROUP=y

1
arch/xtensa/configs/smp_lx200_defconfig
View File

@ -11,7 +11,6 @@ CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CPUSETS=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
CONFIG_MEMCG=y
CONFIG_NAMESPACES=y
CONFIG_SCHED_AUTOGROUP=y

5
drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c
View File

@ -232,7 +232,10 @@ static struct amdgpu_mn *amdgpu_mn_get(struct amdgpu_device *adev)
int r;
mutex_lock(&adev->mn_lock);
down_write(&mm->mmap_sem);
if (down_write_killable(&mm->mmap_sem)) {
mutex_unlock(&adev->mn_lock);
return ERR_PTR(-EINTR);
}
hash_for_each_possible(adev->mn_hash, rmn, node, (unsigned long)mm)
if (rmn->mm == mm)

5
drivers/gpu/drm/i915/i915_gem.c
View File

@ -1721,7 +1721,10 @@ i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
struct mm_struct *mm = current->mm;
struct vm_area_struct *vma;
down_write(&mm->mmap_sem);
if (down_write_killable(&mm->mmap_sem)) {
drm_gem_object_unreference_unlocked(obj);
return -EINTR;
}
vma = find_vma(mm, addr);
if (vma)
vma->vm_page_prot =

4
drivers/gpu/drm/radeon/radeon_mn.c
View File

@ -186,7 +186,9 @@ static struct radeon_mn *radeon_mn_get(struct radeon_device *rdev)
struct radeon_mn *rmn;
int r;
down_write(&mm->mmap_sem);
if (down_write_killable(&mm->mmap_sem))
return ERR_PTR(-EINTR);
mutex_lock(&rdev->mn_lock);
hash_for_each_possible(rdev->mn_hash, rmn, node, (unsigned long)mm)

3
drivers/memstick/core/mspro_block.c
View File

@ -1033,12 +1033,11 @@ static int mspro_block_read_attributes(struct memstick_dev *card)
}
msb->attr_group.name = "media_attributes";
buffer = kmalloc(attr_len, GFP_KERNEL);
buffer = kmemdup(attr, attr_len, GFP_KERNEL);
if (!buffer) {
rc = -ENOMEM;
goto out_free_attr;
}
memcpy(buffer, (char *)attr, attr_len);
for (cnt = 0; cnt < attr_count; ++cnt) {
s_attr = kzalloc(sizeof(struct mspro_sys_attr), GFP_KERNEL);

2
drivers/memstick/host/rtsx_usb_ms.c
View File

@ -706,7 +706,7 @@ poll_again:
if (host->eject)
break;
msleep(1000);
schedule_timeout_idle(HZ);
}
complete(&host->detect_ms_exit);

8
fs/Kconfig.binfmt
View File

@ -1,6 +1,7 @@
config BINFMT_ELF
bool "Kernel support for ELF binaries"
depends on MMU && (BROKEN || !FRV)
select ELFCORE
default y
---help---
ELF (Executable and Linkable Format) is a format for libraries and
@ -26,6 +27,7 @@ config BINFMT_ELF
config COMPAT_BINFMT_ELF
bool
depends on COMPAT && BINFMT_ELF
select ELFCORE
config ARCH_BINFMT_ELF_STATE
bool
@ -34,6 +36,7 @@ config BINFMT_ELF_FDPIC
bool "Kernel support for FDPIC ELF binaries"
default y
depends on (FRV || BLACKFIN || (SUPERH32 && !MMU) || C6X)
select ELFCORE
help
ELF FDPIC binaries are based on ELF, but allow the individual load
segments of a binary to be located in memory independently of each
@ -43,6 +46,11 @@ config BINFMT_ELF_FDPIC
It is also possible to run FDPIC ELF binaries on MMU linux also.
config ELFCORE
bool
help
This option enables kernel/elfcore.o.
config CORE_DUMP_DEFAULT_ELF_HEADERS
bool "Write ELF core dumps with partial segments"
default y

7
fs/aio.c
View File

@ -496,7 +496,12 @@ static int aio_setup_ring(struct kioctx *ctx)
ctx->mmap_size = nr_pages * PAGE_SIZE;
pr_debug("attempting mmap of %lu bytes\n", ctx->mmap_size);
down_write(&mm->mmap_sem);
if (down_write_killable(&mm->mmap_sem)) {
ctx->mmap_size = 0;
aio_free_ring(ctx);
return -EINTR;
}
ctx->mmap_base = do_mmap_pgoff(ctx->aio_ring_file, 0, ctx->mmap_size,
PROT_READ | PROT_WRITE,
MAP_SHARED, 0, &unused);

8
fs/befs/datastream.c
View File

@ -48,7 +48,7 @@ struct buffer_head *
befs_read_datastream(struct super_block *sb, const befs_data_stream *ds,
befs_off_t pos, uint * off)
{
struct buffer_head *bh = NULL;
struct buffer_head *bh;
befs_block_run run;
befs_blocknr_t block; /* block coresponding to pos */
@ -127,7 +127,7 @@ befs_read_lsymlink(struct super_block *sb, const befs_data_stream *ds,
{
befs_off_t bytes_read = 0; /* bytes readed */
u16 plen;
struct buffer_head *bh = NULL;
struct buffer_head *bh;
befs_debug(sb, "---> %s length: %llu", __func__, len);
while (bytes_read < len) {
@ -429,7 +429,7 @@ befs_find_brun_dblindirect(struct super_block *sb,
struct buffer_head *dbl_indir_block;
struct buffer_head *indir_block;
befs_block_run indir_run;
befs_disk_inode_addr *iaddr_array = NULL;
befs_disk_inode_addr *iaddr_array;
struct befs_sb_info *befs_sb = BEFS_SB(sb);
befs_blocknr_t indir_start_blk =
@ -488,7 +488,6 @@ befs_find_brun_dblindirect(struct super_block *sb,
iaddr_array = (befs_disk_inode_addr *) dbl_indir_block->b_data;
indir_run = fsrun_to_cpu(sb, iaddr_array[dbl_block_indx]);
brelse(dbl_indir_block);
iaddr_array = NULL;
/* Read indirect block */
which_block = indir_indx / befs_iaddrs_per_block(sb);
@ -513,7 +512,6 @@ befs_find_brun_dblindirect(struct super_block *sb,
iaddr_array = (befs_disk_inode_addr *) indir_block->b_data;
*run = fsrun_to_cpu(sb, iaddr_array[block_indx]);
brelse(indir_block);
iaddr_array = NULL;
blockno_at_run_start = indir_start_blk;
blockno_at_run_start += diblklen * dblindir_indx;

4
fs/befs/io.c
View File

@ -26,7 +26,7 @@
struct buffer_head *
befs_bread_iaddr(struct super_block *sb, befs_inode_addr iaddr)
{
struct buffer_head *bh = NULL;
struct buffer_head *bh;
befs_blocknr_t block = 0;
struct befs_sb_info *befs_sb = BEFS_SB(sb);
@ -63,7 +63,7 @@ befs_bread_iaddr(struct super_block *sb, befs_inode_addr iaddr)
struct buffer_head *
befs_bread(struct super_block *sb, befs_blocknr_t block)
{
struct buffer_head *bh = NULL;
struct buffer_head *bh;
befs_debug(sb, "---> Enter %s %lu", __func__, (unsigned long)block);

8
fs/befs/linuxvfs.c
View File

@ -155,7 +155,7 @@ befs_get_block(struct inode *inode, sector_t block,
static struct dentry *
befs_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
{
struct inode *inode = NULL;
struct inode *inode;
struct super_block *sb = dir->i_sb;
const befs_data_stream *ds = &BEFS_I(dir)->i_data.ds;
befs_off_t offset;
@ -294,10 +294,10 @@ static void init_once(void *foo)
static struct inode *befs_iget(struct super_block *sb, unsigned long ino)
{
struct buffer_head *bh = NULL;
befs_inode *raw_inode = NULL;
struct buffer_head *bh;
befs_inode *raw_inode;
struct befs_sb_info *befs_sb = BEFS_SB(sb);
struct befs_inode_info *befs_ino = NULL;
struct befs_inode_info *befs_ino;
struct inode *inode;
long ret = -EIO;

11
fs/binfmt_aout.c
View File

@ -297,7 +297,10 @@ static int load_aout_binary(struct linux_binprm * bprm)
}
if (!bprm->file->f_op->mmap||((fd_offset & ~PAGE_MASK) != 0)) {
vm_brk(N_TXTADDR(ex), ex.a_text+ex.a_data);
error = vm_brk(N_TXTADDR(ex), ex.a_text+ex.a_data);
if (IS_ERR_VALUE(error))
return error;
read_code(bprm->file, N_TXTADDR(ex), fd_offset,
ex.a_text + ex.a_data);
goto beyond_if;
@ -378,8 +381,10 @@ static int load_aout_library(struct file *file)
"N_TXTOFF is not page aligned. Please convert library: %pD\n",
file);
}
vm_brk(start_addr, ex.a_text + ex.a_data + ex.a_bss);
retval = vm_brk(start_addr, ex.a_text + ex.a_data + ex.a_bss);
if (IS_ERR_VALUE(retval))
goto out;
read_code(file, start_addr, N_TXTOFF(ex),
ex.a_text + ex.a_data);
retval = 0;

7
fs/binfmt_elf.c
View File

@ -1176,8 +1176,11 @@ static int load_elf_library(struct file *file)
len = ELF_PAGESTART(eppnt->p_filesz + eppnt->p_vaddr +
ELF_MIN_ALIGN - 1);
bss = eppnt->p_memsz + eppnt->p_vaddr;
if (bss > len)
vm_brk(len, bss - len);
if (bss > len) {
error = vm_brk(len, bss - len);
if (BAD_ADDR(error))
goto out_free_ph;
}
error = 0;
out_free_ph:

4
fs/coredump.c
View File

@ -413,7 +413,9 @@ static int coredump_wait(int exit_code, struct core_state *core_state)
core_state->dumper.task = tsk;
core_state->dumper.next = NULL;
down_write(&mm->mmap_sem);
if (down_write_killable(&mm->mmap_sem))
return -EINTR;
if (!mm->core_state)
core_waiters = zap_threads(tsk, mm, core_state, exit_code);
up_write(&mm->mmap_sem);

17
fs/exec.c
View File

@ -243,10 +243,6 @@ static void put_arg_page(struct page *page)
put_page(page);
}
static void free_arg_page(struct linux_binprm *bprm, int i)
{
}
static void free_arg_pages(struct linux_binprm *bprm)
{
}
@ -267,7 +263,10 @@ static int __bprm_mm_init(struct linux_binprm *bprm)
if (!vma)
return -ENOMEM;
down_write(&mm->mmap_sem);
if (down_write_killable(&mm->mmap_sem)) {
err = -EINTR;
goto err_free;
}
vma->vm_mm = mm;
/*
@ -294,6 +293,7 @@ static int __bprm_mm_init(struct linux_binprm *bprm)
return 0;
err:
up_write(&mm->mmap_sem);
err_free:
bprm->vma = NULL;
kmem_cache_free(vm_area_cachep, vma);
return err;
@ -700,7 +700,9 @@ int setup_arg_pages(struct linux_binprm *bprm,
bprm->loader -= stack_shift;
bprm->exec -= stack_shift;
down_write(&mm->mmap_sem);
if (down_write_killable(&mm->mmap_sem))
return -EINTR;
vm_flags = VM_STACK_FLAGS;
/*
@ -1499,9 +1501,6 @@ int remove_arg_zero(struct linux_binprm *bprm)
kunmap_atomic(kaddr);
put_arg_page(page);
if (offset == PAGE_SIZE)
free_arg_page(bprm, (bprm->p >> PAGE_SHIFT) - 1);
} while (offset == PAGE_SIZE);
bprm->p++;

39
fs/nilfs2/alloc.c
View File

@ -13,13 +13,8 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Original code was written by Koji Sato <koji@osrg.net>.
* Two allocators were unified by Ryusuke Konishi <ryusuke@osrg.net>,
* Amagai Yoshiji <amagai@osrg.net>.
* Originally written by Koji Sato.
* Two allocators were unified by Ryusuke Konishi and Amagai Yoshiji.
*/
#include <linux/types.h>
@ -58,7 +53,7 @@ nilfs_palloc_groups_count(const struct inode *inode)
* @inode: inode of metadata file using this allocator
* @entry_size: size of the persistent object
*/
int nilfs_palloc_init_blockgroup(struct inode *inode, unsigned entry_size)
int nilfs_palloc_init_blockgroup(struct inode *inode, unsigned int entry_size)
{
struct nilfs_mdt_info *mi = NILFS_MDT(inode);
@ -73,13 +68,17 @@ int nilfs_palloc_init_blockgroup(struct inode *inode, unsigned entry_size)
mi->mi_blocks_per_group =
DIV_ROUND_UP(nilfs_palloc_entries_per_group(inode),
mi->mi_entries_per_block) + 1;
/* Number of blocks in a group including entry blocks and
a bitmap block */
/*
* Number of blocks in a group including entry blocks
* and a bitmap block
*/
mi->mi_blocks_per_desc_block =
nilfs_palloc_groups_per_desc_block(inode) *
mi->mi_blocks_per_group + 1;
/* Number of blocks per descriptor including the
descriptor block */
/*
* Number of blocks per descriptor including the
* descriptor block
*/
return 0;
}
@ -389,7 +388,7 @@ void *nilfs_palloc_block_get_entry(const struct inode *inode, __u64 nr,
*/
static int nilfs_palloc_find_available_slot(unsigned char *bitmap,
unsigned long target,
unsigned bsize,
unsigned int bsize,
spinlock_t *lock)
{
int pos, end = bsize;
@ -624,7 +623,7 @@ void nilfs_palloc_commit_free_entry(struct inode *inode,
if (!nilfs_clear_bit_atomic(lock, group_offset, bitmap))
nilfs_warning(inode->i_sb, __func__,
"entry number %llu already freed: ino=%lu\n",
"entry number %llu already freed: ino=%lu",
(unsigned long long)req->pr_entry_nr,
(unsigned long)inode->i_ino);
else
@ -665,7 +664,7 @@ void nilfs_palloc_abort_alloc_entry(struct inode *inode,
if (!nilfs_clear_bit_atomic(lock, group_offset, bitmap))
nilfs_warning(inode->i_sb, __func__,
"entry number %llu already freed: ino=%lu\n",
"entry number %llu already freed: ino=%lu",
(unsigned long long)req->pr_entry_nr,
(unsigned long)inode->i_ino);
else
@ -740,8 +739,8 @@ int nilfs_palloc_freev(struct inode *inode, __u64 *entry_nrs, size_t nitems)
unsigned long group, group_offset;
__u64 group_min_nr, last_nrs[8];
const unsigned long epg = nilfs_palloc_entries_per_group(inode);
const unsigned epb = NILFS_MDT(inode)->mi_entries_per_block;
unsigned entry_start, end, pos;
const unsigned int epb = NILFS_MDT(inode)->mi_entries_per_block;
unsigned int entry_start, end, pos;
spinlock_t *lock;
int i, j, k, ret;
u32 nfree;
@ -774,7 +773,7 @@ int nilfs_palloc_freev(struct inode *inode, __u64 *entry_nrs, size_t nitems)
if (!nilfs_clear_bit_atomic(lock, group_offset,
bitmap)) {
nilfs_warning(inode->i_sb, __func__,
"entry number %llu already freed: ino=%lu\n",
"entry number %llu already freed: ino=%lu",
(unsigned long long)entry_nrs[j],
(unsigned long)inode->i_ino);
} else {
@ -819,7 +818,7 @@ int nilfs_palloc_freev(struct inode *inode, __u64 *entry_nrs, size_t nitems)
last_nrs[k]);
if (ret && ret != -ENOENT) {
nilfs_warning(inode->i_sb, __func__,
"failed to delete block of entry %llu: ino=%lu, err=%d\n",
"failed to delete block of entry %llu: ino=%lu, err=%d",
(unsigned long long)last_nrs[k],
(unsigned long)inode->i_ino, ret);
}
@ -838,7 +837,7 @@ int nilfs_palloc_freev(struct inode *inode, __u64 *entry_nrs, size_t nitems)
ret = nilfs_palloc_delete_bitmap_block(inode, group);
if (ret && ret != -ENOENT) {
nilfs_warning(inode->i_sb, __func__,
"failed to delete bitmap block of group %lu: ino=%lu, err=%d\n",
"failed to delete bitmap block of group %lu: ino=%lu, err=%d",
group,
(unsigned long)inode->i_ino, ret);
}

11
fs/nilfs2/alloc.h
View File

@ -13,13 +13,8 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Original code was written by Koji Sato <koji@osrg.net>.
* Two allocators were unified by Ryusuke Konishi <ryusuke@osrg.net>,
* Amagai Yoshiji <amagai@osrg.net>.
* Originally written by Koji Sato.
* Two allocators were unified by Ryusuke Konishi and Amagai Yoshiji.
*/
#ifndef _NILFS_ALLOC_H
@ -42,7 +37,7 @@ nilfs_palloc_entries_per_group(const struct inode *inode)
return 1UL << (inode->i_blkbits + 3 /* log2(8 = CHAR_BITS) */);
}
int nilfs_palloc_init_blockgroup(struct inode *, unsigned);
int nilfs_palloc_init_blockgroup(struct inode *, unsigned int);
int nilfs_palloc_get_entry_block(struct inode *, __u64, int,
struct buffer_head **);
void *nilfs_palloc_block_get_entry(const struct inode *, __u64,

10
fs/nilfs2/bmap.c
View File

@ -13,11 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Koji Sato <koji@osrg.net>.
* Written by Koji Sato.
*/
#include <linux/fs.h>
@ -46,7 +42,7 @@ static int nilfs_bmap_convert_error(struct nilfs_bmap *bmap,
if (err == -EINVAL) {
nilfs_error(inode->i_sb, fname,
"broken bmap (inode number=%lu)\n", inode->i_ino);
"broken bmap (inode number=%lu)", inode->i_ino);
err = -EIO;
}
return err;
@ -97,7 +93,7 @@ int nilfs_bmap_lookup_at_level(struct nilfs_bmap *bmap, __u64 key, int level,
}
int nilfs_bmap_lookup_contig(struct nilfs_bmap *bmap, __u64 key, __u64 *ptrp,
unsigned maxblocks)
unsigned int maxblocks)
{
int ret;

22
fs/nilfs2/bmap.h
View File

@ -13,11 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Koji Sato <koji@osrg.net>.
* Written by Koji Sato.
*/
#ifndef _NILFS_BMAP_H
@ -61,7 +57,7 @@ struct nilfs_bmap_stats {
struct nilfs_bmap_operations {
int (*bop_lookup)(const struct nilfs_bmap *, __u64, int, __u64 *);
int (*bop_lookup_contig)(const struct nilfs_bmap *, __u64, __u64 *,
unsigned);
unsigned int);
int (*bop_insert)(struct nilfs_bmap *, __u64, __u64);
int (*bop_delete)(struct nilfs_bmap *, __u64);
void (*bop_clear)(struct nilfs_bmap *);
@ -126,10 +122,14 @@ struct nilfs_bmap {
/* pointer type */
#define NILFS_BMAP_PTR_P 0 /* physical block number (i.e. LBN) */
#define NILFS_BMAP_PTR_VS 1 /* virtual block number (single
version) */
#define NILFS_BMAP_PTR_VM 2 /* virtual block number (has multiple
versions) */
#define NILFS_BMAP_PTR_VS 1 /*
* virtual block number (single
* version)
*/
#define NILFS_BMAP_PTR_VM 2 /*
* virtual block number (has multiple
* versions)
*/
#define NILFS_BMAP_PTR_U (-1) /* never perform pointer operations */
#define NILFS_BMAP_USE_VBN(bmap) ((bmap)->b_ptr_type > 0)
@ -154,7 +154,7 @@ struct nilfs_bmap_store {
int nilfs_bmap_test_and_clear_dirty(struct nilfs_bmap *);
int nilfs_bmap_read(struct nilfs_bmap *, struct nilfs_inode *);
void nilfs_bmap_write(struct nilfs_bmap *, struct nilfs_inode *);
int nilfs_bmap_lookup_contig(struct nilfs_bmap *, __u64, __u64 *, unsigned);
int nilfs_bmap_lookup_contig(struct nilfs_bmap *, __u64, __u64 *, unsigned int);
int nilfs_bmap_insert(struct nilfs_bmap *bmap, __u64 key, unsigned long rec);
int nilfs_bmap_delete(struct nilfs_bmap *bmap, __u64 key);
int nilfs_bmap_seek_key(struct nilfs_bmap *bmap, __u64 start, __u64 *keyp);

9
fs/nilfs2/btnode.c
View File

@ -13,13 +13,8 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* This file was originally written by Seiji Kihara <kihara@osrg.net>
* and fully revised by Ryusuke Konishi <ryusuke@osrg.net> for
* stabilization and simplification.
* Originally written by Seiji Kihara.
* Fully revised by Ryusuke Konishi for stabilization and simplification.
*
*/

8
fs/nilfs2/btnode.h
View File

@ -13,12 +13,8 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Seiji Kihara <kihara@osrg.net>
* Revised by Ryusuke Konishi <ryusuke@osrg.net>
* Written by Seiji Kihara.
* Revised by Ryusuke Konishi.
*/
#ifndef _NILFS_BTNODE_H

21
fs/nilfs2/btree.c
View File

@ -13,11 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Koji Sato <koji@osrg.net>.
* Written by Koji Sato.
*/
#include <linux/slab.h>
@ -689,7 +685,8 @@ static int nilfs_btree_lookup(const struct nilfs_bmap *btree,
}
static int nilfs_btree_lookup_contig(const struct nilfs_bmap *btree,
__u64 key, __u64 *ptrp, unsigned maxblocks)
__u64 key, __u64 *ptrp,
unsigned int maxblocks)
{
struct nilfs_btree_path *path;
struct nilfs_btree_node *node;
@ -1032,12 +1029,12 @@ static __u64 nilfs_btree_find_target_v(const struct nilfs_bmap *btree,
if (ptr != NILFS_BMAP_INVALID_PTR)
/* sequential access */
return ptr;
else {
ptr = nilfs_btree_find_near(btree, path);
if (ptr != NILFS_BMAP_INVALID_PTR)
/* near */
return ptr;
}
ptr = nilfs_btree_find_near(btree, path);
if (ptr != NILFS_BMAP_INVALID_PTR)
/* near */
return ptr;
/* block group */
return nilfs_bmap_find_target_in_group(btree);
}

6
fs/nilfs2/btree.h
View File

@ -13,11 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Koji Sato <koji@osrg.net>.
* Written by Koji Sato.
*/
#ifndef _NILFS_BTREE_H

22
fs/nilfs2/cpfile.c
View File

@ -13,11 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Koji Sato <koji@osrg.net>.
* Written by Koji Sato.
*/
#include <linux/kernel.h>
@ -41,6 +37,7 @@ static unsigned long
nilfs_cpfile_get_blkoff(const struct inode *cpfile, __u64 cno)
{
__u64 tcno = cno + NILFS_MDT(cpfile)->mi_first_entry_offset - 1;
do_div(tcno, nilfs_cpfile_checkpoints_per_block(cpfile));
return (unsigned long)tcno;
}
@ -50,6 +47,7 @@ static unsigned long
nilfs_cpfile_get_offset(const struct inode *cpfile, __u64 cno)
{
__u64 tcno = cno + NILFS_MDT(cpfile)->mi_first_entry_offset - 1;
return do_div(tcno, nilfs_cpfile_checkpoints_per_block(cpfile));
}
@ -433,7 +431,8 @@ static void nilfs_cpfile_checkpoint_to_cpinfo(struct inode *cpfile,
}
static ssize_t nilfs_cpfile_do_get_cpinfo(struct inode *cpfile, __u64 *cnop,
void *buf, unsigned cisz, size_t nci)
void *buf, unsigned int cisz,
size_t nci)
{
struct nilfs_checkpoint *cp;
struct nilfs_cpinfo *ci = buf;
@ -484,7 +483,8 @@ static ssize_t nilfs_cpfile_do_get_cpinfo(struct inode *cpfile, __u64 *cnop,
}
static ssize_t nilfs_cpfile_do_get_ssinfo(struct inode *cpfile, __u64 *cnop,
void *buf, unsigned cisz, size_t nci)
void *buf, unsigned int cisz,
size_t nci)
{
struct buffer_head *bh;
struct nilfs_cpfile_header *header;
@ -570,7 +570,7 @@ static ssize_t nilfs_cpfile_do_get_ssinfo(struct inode *cpfile, __u64 *cnop,
*/
ssize_t nilfs_cpfile_get_cpinfo(struct inode *cpfile, __u64 *cnop, int mode,
void *buf, unsigned cisz, size_t nci)
void *buf, unsigned int cisz, size_t nci)
{
switch (mode) {
case NILFS_CHECKPOINT:
@ -870,8 +870,10 @@ int nilfs_cpfile_is_snapshot(struct inode *cpfile, __u64 cno)
void *kaddr;
int ret;
/* CP number is invalid if it's zero or larger than the
largest exist one.*/
/*
* CP number is invalid if it's zero or larger than the
* largest existing one.
*/
if (cno == 0 || cno >= nilfs_mdt_cno(cpfile))
return -ENOENT;
down_read(&NILFS_MDT(cpfile)->mi_sem);

10
fs/nilfs2/cpfile.h
View File

@ -13,11 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Koji Sato <koji@osrg.net>.
* Written by Koji Sato.
*/
#ifndef _NILFS_CPFILE_H
@ -37,8 +33,8 @@ int nilfs_cpfile_delete_checkpoint(struct inode *, __u64);
int nilfs_cpfile_change_cpmode(struct inode *, __u64, int);
int nilfs_cpfile_is_snapshot(struct inode *, __u64);
int nilfs_cpfile_get_stat(struct inode *, struct nilfs_cpstat *);
ssize_t nilfs_cpfile_get_cpinfo(struct inode *, __u64 *, int, void *, unsigned,
size_t);
ssize_t nilfs_cpfile_get_cpinfo(struct inode *, __u64 *, int, void *,
unsigned int, size_t);
int nilfs_cpfile_read(struct super_block *sb, size_t cpsize,
struct nilfs_inode *raw_inode, struct inode **inodep);

8
fs/nilfs2/dat.c
View File

@ -13,11 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Koji Sato <koji@osrg.net>.
* Written by Koji Sato.
*/
#include <linux/types.h>
@ -428,7 +424,7 @@ int nilfs_dat_translate(struct inode *dat, __u64 vblocknr, sector_t *blocknrp)
return ret;
}
ssize_t nilfs_dat_get_vinfo(struct inode *dat, void *buf, unsigned visz,
ssize_t nilfs_dat_get_vinfo(struct inode *dat, void *buf, unsigned int visz,
size_t nvi)
{
struct buffer_head *entry_bh;

8
fs/nilfs2/dat.h
View File

@ -13,11 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Koji Sato <koji@osrg.net>.
* Written by Koji Sato.
*/
#ifndef _NILFS_DAT_H
@ -51,7 +47,7 @@ void nilfs_dat_abort_update(struct inode *, struct nilfs_palloc_req *,
int nilfs_dat_mark_dirty(struct inode *, __u64);
int nilfs_dat_freev(struct inode *, __u64 *, size_t);
int nilfs_dat_move(struct inode *, __u64, sector_t);
ssize_t nilfs_dat_get_vinfo(struct inode *, void *, unsigned, size_t);
ssize_t nilfs_dat_get_vinfo(struct inode *, void *, unsigned int, size_t);
int nilfs_dat_read(struct super_block *sb, size_t entry_size,
struct nilfs_inode *raw_inode, struct inode **inodep);

59
fs/nilfs2/dir.c
View File

@ -13,11 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Modified for NILFS by Amagai Yoshiji <amagai@osrg.net>
* Modified for NILFS by Amagai Yoshiji.
*/
/*
* linux/fs/ext2/dir.c
@ -50,7 +46,7 @@
* nilfs uses block-sized chunks. Arguably, sector-sized ones would be
* more robust, but we have what we have
*/
static inline unsigned nilfs_chunk_size(struct inode *inode)
static inline unsigned int nilfs_chunk_size(struct inode *inode)
{
return inode->i_sb->s_blocksize;
}
@ -65,9 +61,9 @@ static inline void nilfs_put_page(struct page *page)
* Return the offset into page `page_nr' of the last valid
* byte in that page, plus one.
*/
static unsigned nilfs_last_byte(struct inode *inode, unsigned long page_nr)
static unsigned int nilfs_last_byte(struct inode *inode, unsigned long page_nr)
{
unsigned last_byte = inode->i_size;
unsigned int last_byte = inode->i_size;
last_byte -= page_nr << PAGE_SHIFT;
if (last_byte > PAGE_SIZE)
@ -75,20 +71,22 @@ static unsigned nilfs_last_byte(struct inode *inode, unsigned long page_nr)
return last_byte;
}
static int nilfs_prepare_chunk(struct page *page, unsigned from, unsigned to)
static int nilfs_prepare_chunk(struct page *page, unsigned int from,
unsigned int to)
{
loff_t pos = page_offset(page) + from;
return __block_write_begin(page, pos, to - from, nilfs_get_block);
}
static void nilfs_commit_chunk(struct page *page,
struct address_space *mapping,
unsigned from, unsigned to)
unsigned int from, unsigned int to)
{
struct inode *dir = mapping->host;
loff_t pos = page_offset(page) + from;
unsigned len = to - from;
unsigned nr_dirty, copied;
unsigned int len = to - from;
unsigned int nr_dirty, copied;
int err;
nr_dirty = nilfs_page_count_clean_buffers(page, from, to);
@ -106,10 +104,10 @@ static bool nilfs_check_page(struct page *page)
{
struct inode *dir = page->mapping->host;
struct super_block *sb = dir->i_sb;
unsigned chunk_size = nilfs_chunk_size(dir);
unsigned int chunk_size = nilfs_chunk_size(dir);
char *kaddr = page_address(page);
unsigned offs, rec_len;
unsigned limit = PAGE_SIZE;
unsigned int offs, rec_len;
unsigned int limit = PAGE_SIZE;
struct nilfs_dir_entry *p;
char *error;
@ -259,7 +257,6 @@ static int nilfs_readdir(struct file *file, struct dir_context *ctx)
unsigned int offset = pos & ~PAGE_MASK;
unsigned long n = pos >> PAGE_SHIFT;
unsigned long npages = dir_pages(inode);
/* unsigned chunk_mask = ~(nilfs_chunk_size(inode)-1); */
if (pos > inode->i_size - NILFS_DIR_REC_LEN(1))
return 0;
@ -321,7 +318,7 @@ nilfs_find_entry(struct inode *dir, const struct qstr *qstr,
{
const unsigned char *name = qstr->name;
int namelen = qstr->len;
unsigned reclen = NILFS_DIR_REC_LEN(namelen);
unsigned int reclen = NILFS_DIR_REC_LEN(namelen);
unsigned long start, n;
unsigned long npages = dir_pages(dir);
struct page *page = NULL;
@ -340,6 +337,7 @@ nilfs_find_entry(struct inode *dir, const struct qstr *qstr,
n = start;
do {
char *kaddr;
page = nilfs_get_page(dir, n);
if (!IS_ERR(page)) {
kaddr = page_address(page);
@ -410,8 +408,8 @@ ino_t nilfs_inode_by_name(struct inode *dir, const struct qstr *qstr)
void nilfs_set_link(struct inode *dir, struct nilfs_dir_entry *de,
struct page *page, struct inode *inode)
{
unsigned from = (char *) de - (char *) page_address(page);
unsigned to = from + nilfs_rec_len_from_disk(de->rec_len);
unsigned int from = (char *)de - (char *)page_address(page);
unsigned int to = from + nilfs_rec_len_from_disk(de->rec_len);
struct address_space *mapping = page->mapping;
int err;
@ -433,15 +431,15 @@ int nilfs_add_link(struct dentry *dentry, struct inode *inode)
struct inode *dir = d_inode(dentry->d_parent);
const unsigned char *name = dentry->d_name.name;
int namelen = dentry->d_name.len;
unsigned chunk_size = nilfs_chunk_size(dir);
unsigned reclen = NILFS_DIR_REC_LEN(namelen);
unsigned int chunk_size = nilfs_chunk_size(dir);
unsigned int reclen = NILFS_DIR_REC_LEN(namelen);
unsigned short rec_len, name_len;
struct page *page = NULL;
struct nilfs_dir_entry *de;
unsigned long npages = dir_pages(dir);
unsigned long n;
char *kaddr;
unsigned from, to;
unsigned int from, to;
int err;
/*
@ -533,13 +531,14 @@ int nilfs_delete_entry(struct nilfs_dir_entry *dir, struct page *page)
struct address_space *mapping = page->mapping;
struct inode *inode = mapping->host;
char *kaddr = page_address(page);
unsigned from = ((char *)dir - kaddr) & ~(nilfs_chunk_size(inode) - 1);
unsigned to = ((char *)dir - kaddr) +
nilfs_rec_len_from_disk(dir->rec_len);
struct nilfs_dir_entry *pde = NULL;
struct nilfs_dir_entry *de = (struct nilfs_dir_entry *)(kaddr + from);
unsigned int from, to;
struct nilfs_dir_entry *de, *pde = NULL;
int err;
from = ((char *)dir - kaddr) & ~(nilfs_chunk_size(inode) - 1);
to = ((char *)dir - kaddr) + nilfs_rec_len_from_disk(dir->rec_len);
de = (struct nilfs_dir_entry *)(kaddr + from);
while ((char *)de < (char *)dir) {
if (de->rec_len == 0) {
nilfs_error(inode->i_sb, __func__,
@ -572,7 +571,7 @@ int nilfs_make_empty(struct inode *inode, struct inode *parent)
{
struct address_space *mapping = inode->i_mapping;
struct page *page = grab_cache_page(mapping, 0);
unsigned chunk_size = nilfs_chunk_size(inode);
unsigned int chunk_size = nilfs_chunk_size(inode);
struct nilfs_dir_entry *de;
int err;
void *kaddr;
@ -630,8 +629,8 @@ int nilfs_empty_dir(struct inode *inode)
while ((char *)de <= kaddr) {
if (de->rec_len == 0) {
nilfs_error(inode->i_sb, __func__,
"zero-length directory entry "
"(kaddr=%p, de=%p)\n", kaddr, de);
"zero-length directory entry (kaddr=%p, de=%p)",
kaddr, de);
goto not_empty;
}
if (de->inode != 0) {

17
fs/nilfs2/direct.c
View File

@ -13,11 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Koji Sato <koji@osrg.net>.
* Written by Koji Sato.
*/
#include <linux/errno.h>
@ -62,7 +58,7 @@ static int nilfs_direct_lookup(const struct nilfs_bmap *direct,
static int nilfs_direct_lookup_contig(const struct nilfs_bmap *direct,
__u64 key, __u64 *ptrp,
unsigned maxblocks)
unsigned int maxblocks)
{
struct inode *dat = NULL;
__u64 ptr, ptr2;
@ -83,7 +79,8 @@ static int nilfs_direct_lookup_contig(const struct nilfs_bmap *direct,
ptr = blocknr;
}
maxblocks = min_t(unsigned, maxblocks, NILFS_DIRECT_KEY_MAX - key + 1);
maxblocks = min_t(unsigned int, maxblocks,
NILFS_DIRECT_KEY_MAX - key + 1);
for (cnt = 1; cnt < maxblocks &&
(ptr2 = nilfs_direct_get_ptr(direct, key + cnt)) !=
NILFS_BMAP_INVALID_PTR;
@ -110,9 +107,9 @@ nilfs_direct_find_target_v(const struct nilfs_bmap *direct, __u64 key)
if (ptr != NILFS_BMAP_INVALID_PTR)
/* sequential access */
return ptr;
else
/* block group */
return nilfs_bmap_find_target_in_group(direct);
/* block group */
return nilfs_bmap_find_target_in_group(direct);
}
static int nilfs_direct_insert(struct nilfs_bmap *bmap, __u64 key, __u64 ptr)

6
fs/nilfs2/direct.h
View File

@ -13,11 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Koji Sato <koji@osrg.net>.
* Written by Koji Sato.
*/
#ifndef _NILFS_DIRECT_H

2
fs/nilfs2/export.h
View File

@ -20,6 +20,6 @@ struct nilfs_fid {
u32 parent_gen;
u64 parent_ino;
} __attribute__ ((packed));
} __packed;
#endif

7
fs/nilfs2/file.c
View File

@ -13,12 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Amagai Yoshiji <amagai@osrg.net>,
* Ryusuke Konishi <ryusuke@osrg.net>
* Written by Amagai Yoshiji and Ryusuke Konishi.
*/
#include <linux/fs.h>

9
fs/nilfs2/gcinode.c
View File

@ -13,13 +13,8 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Seiji Kihara <kihara@osrg.net>, Amagai Yoshiji <amagai@osrg.net>,
* and Ryusuke Konishi <ryusuke@osrg.net>.
* Revised by Ryusuke Konishi <ryusuke@osrg.net>.
* Written by Seiji Kihara, Amagai Yoshiji, and Ryusuke Konishi.
* Revised by Ryusuke Konishi.
*
*/
/*

14
fs/nilfs2/ifile.c
View File

@ -13,12 +13,8 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Amagai Yoshiji <amagai@osrg.net>.
* Revised by Ryusuke Konishi <ryusuke@osrg.net>.
* Written by Amagai Yoshiji.
* Revised by Ryusuke Konishi.
*
*/
@ -68,8 +64,10 @@ int nilfs_ifile_create_inode(struct inode *ifile, ino_t *out_ino,
struct nilfs_palloc_req req;
int ret;
req.pr_entry_nr = 0; /* 0 says find free inode from beginning of
a group. dull code!! */
req.pr_entry_nr = 0; /*
* 0 says find free inode from beginning
* of a group. dull code!!
*/
req.pr_entry_bh = NULL;
ret = nilfs_palloc_prepare_alloc_entry(ifile, &req);

9
fs/nilfs2/ifile.h
View File

@ -13,12 +13,8 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Amagai Yoshiji <amagai@osrg.net>
* Revised by Ryusuke Konishi <ryusuke@osrg.net>
* Written by Amagai Yoshiji.
* Revised by Ryusuke Konishi.
*
*/
@ -36,6 +32,7 @@ static inline struct nilfs_inode *
nilfs_ifile_map_inode(struct inode *ifile, ino_t ino, struct buffer_head *ibh)
{
void *kaddr = kmap(ibh->b_page);
return nilfs_palloc_block_get_entry(ifile, ino, ibh, kaddr);
}

105
fs/nilfs2/inode.c
View File

@ -13,11 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Ryusuke Konishi <ryusuke@osrg.net>
* Written by Ryusuke Konishi.
*
*/
@ -87,7 +83,7 @@ int nilfs_get_block(struct inode *inode, sector_t blkoff,
struct the_nilfs *nilfs = inode->i_sb->s_fs_info;
__u64 blknum = 0;
int err = 0, ret;
unsigned maxblocks = bh_result->b_size >> inode->i_blkbits;
unsigned int maxblocks = bh_result->b_size >> inode->i_blkbits;
down_read(&NILFS_MDT(nilfs->ns_dat)->mi_sem);
ret = nilfs_bmap_lookup_contig(ii->i_bmap, blkoff, &blknum, maxblocks);
@ -133,11 +129,14 @@ int nilfs_get_block(struct inode *inode, sector_t blkoff,
/* Error handling should be detailed */
set_buffer_new(bh_result);
set_buffer_delay(bh_result);
map_bh(bh_result, inode->i_sb, 0); /* dbn must be changed
to proper value */
map_bh(bh_result, inode->i_sb, 0);
/* Disk block number must be changed to proper value */
} else if (ret == -ENOENT) {
/* not found is not error (e.g. hole); must return without
the mapped state flag. */
/*
* not found is not error (e.g. hole); must return without
* the mapped state flag.
*/
;
} else {
err = ret;
@ -167,7 +166,7 @@ static int nilfs_readpage(struct file *file, struct page *page)
* @nr_pages - number of pages to be read
*/
static int nilfs_readpages(struct file *file, struct address_space *mapping,
struct list_head *pages, unsigned nr_pages)
struct list_head *pages, unsigned int nr_pages)
{
return mpage_readpages(mapping, pages, nr_pages, nilfs_get_block);
}
@ -226,7 +225,7 @@ static int nilfs_set_page_dirty(struct page *page)
int ret = __set_page_dirty_nobuffers(page);
if (page_has_buffers(page)) {
unsigned nr_dirty = 0;
unsigned int nr_dirty = 0;
struct buffer_head *bh, *head;
/*
@ -249,7 +248,7 @@ static int nilfs_set_page_dirty(struct page *page)
if (nr_dirty)
nilfs_set_file_dirty(inode, nr_dirty);
} else if (ret) {
unsigned nr_dirty = 1 << (PAGE_SHIFT - inode->i_blkbits);
unsigned int nr_dirty = 1 << (PAGE_SHIFT - inode->i_blkbits);
nilfs_set_file_dirty(inode, nr_dirty);
}
@ -291,8 +290,8 @@ static int nilfs_write_end(struct file *file, struct address_space *mapping,
struct page *page, void *fsdata)
{
struct inode *inode = mapping->host;
unsigned start = pos & (PAGE_SIZE - 1);
unsigned nr_dirty;
unsigned int start = pos & (PAGE_SIZE - 1);
unsigned int nr_dirty;
int err;
nr_dirty = nilfs_page_count_clean_buffers(page, start,
@ -399,23 +398,26 @@ struct inode *nilfs_new_inode(struct inode *dir, umode_t mode)
err = nilfs_init_acl(inode, dir);
if (unlikely(err))
goto failed_after_creation; /* never occur. When supporting
nilfs_init_acl(), proper cancellation of
above jobs should be considered */
/*
* Never occur. When supporting nilfs_init_acl(),
* proper cancellation of above jobs should be considered.
*/
goto failed_after_creation;
return inode;
failed_after_creation:
clear_nlink(inode);
unlock_new_inode(inode);
iput(inode); /* raw_inode will be deleted through
nilfs_evict_inode() */
iput(inode); /*
* raw_inode will be deleted through
* nilfs_evict_inode().
*/
goto failed;
failed_ifile_create_inode:
make_bad_inode(inode);
iput(inode); /* if i_nlink == 1, generic_forget_inode() will be
called */
iput(inode);
failed:
return ERR_PTR(err);
}
@ -666,8 +668,10 @@ void nilfs_write_inode_common(struct inode *inode,
else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
raw_inode->i_device_code =
cpu_to_le64(huge_encode_dev(inode->i_rdev));
/* When extending inode, nilfs->ns_inode_size should be checked
for substitutions of appended fields */
/*
* When extending inode, nilfs->ns_inode_size should be checked
* for substitutions of appended fields.
*/
}
void nilfs_update_inode(struct inode *inode, struct buffer_head *ibh, int flags)
@ -685,9 +689,12 @@ void nilfs_update_inode(struct inode *inode, struct buffer_head *ibh, int flags)
set_bit(NILFS_I_INODE_SYNC, &ii->i_state);
nilfs_write_inode_common(inode, raw_inode, 0);
/* XXX: call with has_bmap = 0 is a workaround to avoid
deadlock of bmap. This delays update of i_bmap to just
before writing */
/*
* XXX: call with has_bmap = 0 is a workaround to avoid
* deadlock of bmap. This delays update of i_bmap to just
* before writing.
*/
nilfs_ifile_unmap_inode(ifile, ino, ibh);
}
@ -752,14 +759,15 @@ void nilfs_truncate(struct inode *inode)
nilfs_mark_inode_dirty(inode);
nilfs_set_file_dirty(inode, 0);
nilfs_transaction_commit(sb);
/* May construct a logical segment and may fail in sync mode.
But truncate has no return value. */
/*
* May construct a logical segment and may fail in sync mode.
* But truncate has no return value.
*/
}
static void nilfs_clear_inode(struct inode *inode)
{
struct nilfs_inode_info *ii = NILFS_I(inode);
struct nilfs_mdt_info *mdi = NILFS_MDT(inode);
/*
* Free resources allocated in nilfs_read_inode(), here.
@ -768,8 +776,8 @@ static void nilfs_clear_inode(struct inode *inode)
brelse(ii->i_bh);
ii->i_bh = NULL;
if (mdi && mdi->mi_palloc_cache)
nilfs_palloc_destroy_cache(inode);
if (nilfs_is_metadata_file_inode(inode))
nilfs_mdt_clear(inode);
if (test_bit(NILFS_I_BMAP, &ii->i_state))
nilfs_bmap_clear(ii->i_bmap);
@ -811,8 +819,10 @@ void nilfs_evict_inode(struct inode *inode)
if (IS_SYNC(inode))
nilfs_set_transaction_flag(NILFS_TI_SYNC);
nilfs_transaction_commit(sb);
/* May construct a logical segment and may fail in sync mode.
But delete_inode has no return value. */
/*
* May construct a logical segment and may fail in sync mode.
* But delete_inode has no return value.
*/
}
int nilfs_setattr(struct dentry *dentry, struct iattr *iattr)
@ -856,6 +866,7 @@ out_err:
int nilfs_permission(struct inode *inode, int mask)
{
struct nilfs_root *root = NILFS_I(inode)->i_root;
if ((mask & MAY_WRITE) && root &&
root->cno != NILFS_CPTREE_CURRENT_CNO)
return -EROFS; /* snapshot is not writable */
@ -906,7 +917,7 @@ int nilfs_inode_dirty(struct inode *inode)
return ret;
}
int nilfs_set_file_dirty(struct inode *inode, unsigned nr_dirty)
int nilfs_set_file_dirty(struct inode *inode, unsigned int nr_dirty)
{
struct nilfs_inode_info *ii = NILFS_I(inode);
struct the_nilfs *nilfs = inode->i_sb->s_fs_info;
@ -919,17 +930,23 @@ int nilfs_set_file_dirty(struct inode *inode, unsigned nr_dirty)
spin_lock(&nilfs->ns_inode_lock);
if (!test_bit(NILFS_I_QUEUED, &ii->i_state) &&
!test_bit(NILFS_I_BUSY, &ii->i_state)) {
/* Because this routine may race with nilfs_dispose_list(),
we have to check NILFS_I_QUEUED here, too. */
/*
* Because this routine may race with nilfs_dispose_list(),
* we have to check NILFS_I_QUEUED here, too.
*/
if (list_empty(&ii->i_dirty) && igrab(inode) == NULL) {
/* This will happen when somebody is freeing
this inode. */
/*
* This will happen when somebody is freeing
* this inode.
*/
nilfs_warning(inode->i_sb, __func__,
"cannot get inode (ino=%lu)\n",
"cannot get inode (ino=%lu)",
inode->i_ino);
spin_unlock(&nilfs->ns_inode_lock);
return -EINVAL; /* NILFS_I_DIRTY may remain for
freeing inode */
return -EINVAL; /*
* NILFS_I_DIRTY may remain for
* freeing inode.
*/
}
list_move_tail(&ii->i_dirty, &nilfs->ns_dirty_files);
set_bit(NILFS_I_QUEUED, &ii->i_state);
@ -946,7 +963,7 @@ int __nilfs_mark_inode_dirty(struct inode *inode, int flags)
err = nilfs_load_inode_block(inode, &ibh);
if (unlikely(err)) {
nilfs_warning(inode->i_sb, __func__,
"failed to reget inode block.\n");
"failed to reget inode block.");
return err;
}
nilfs_update_inode(inode, ibh, flags);
@ -973,7 +990,7 @@ void nilfs_dirty_inode(struct inode *inode, int flags)
if (is_bad_inode(inode)) {
nilfs_warning(inode->i_sb, __func__,
"tried to mark bad_inode dirty. ignored.\n");
"tried to mark bad_inode dirty. ignored.");
dump_stack();
return;
}

17
fs/nilfs2/ioctl.c
View File

@ -13,11 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Koji Sato <koji@osrg.net>.
* Written by Koji Sato.
*/
#include <linux/fs.h>
@ -783,6 +779,7 @@ static int nilfs_ioctl_mark_blocks_dirty(struct the_nilfs *nilfs,
size_t nmembs = argv->v_nmembs;
struct nilfs_bmap *bmap = NILFS_I(nilfs->ns_dat)->i_bmap;
struct nilfs_bdesc *bdescs = buf;
struct buffer_head *bh;
int ret, i;
for (i = 0; i < nmembs; i++) {
@ -800,12 +797,16 @@ static int nilfs_ioctl_mark_blocks_dirty(struct the_nilfs *nilfs,
/* skip dead block */
continue;
if (bdescs[i].bd_level == 0) {
ret = nilfs_mdt_mark_block_dirty(nilfs->ns_dat,
bdescs[i].bd_offset);
if (ret < 0) {
ret = nilfs_mdt_get_block(nilfs->ns_dat,
bdescs[i].bd_offset,
false, NULL, &bh);
if (unlikely(ret)) {
WARN_ON(ret == -ENOENT);
return ret;
}
mark_buffer_dirty(bh);
nilfs_mdt_mark_dirty(nilfs->ns_dat);
put_bh(bh);
} else {
ret = nilfs_bmap_mark(bmap, bdescs[i].bd_offset,
bdescs[i].bd_level);

63
fs/nilfs2/mdt.c
View File

@ -13,11 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Ryusuke Konishi <ryusuke@osrg.net>
* Written by Ryusuke Konishi.
*/
#include <linux/buffer_head.h>
@ -32,6 +28,7 @@
#include "segment.h"
#include "page.h"
#include "mdt.h"
#include "alloc.h" /* nilfs_palloc_destroy_cache() */
#include <trace/events/nilfs2.h>
@ -393,34 +390,6 @@ int nilfs_mdt_forget_block(struct inode *inode, unsigned long block)
return ret;
}
/**
* nilfs_mdt_mark_block_dirty - mark a block on the meta data file dirty.
* @inode: inode of the meta data file
* @block: block offset
*
* Return Value: On success, it returns 0. On error, the following negative
* error code is returned.
*
* %-ENOMEM - Insufficient memory available.
*
* %-EIO - I/O error
*
* %-ENOENT - the specified block does not exist (hole block)
*/
int nilfs_mdt_mark_block_dirty(struct inode *inode, unsigned long block)
{
struct buffer_head *bh;
int err;
err = nilfs_mdt_read_block(inode, block, 0, &bh);
if (unlikely(err))
return err;
mark_buffer_dirty(bh);
nilfs_mdt_mark_dirty(inode);
brelse(bh);
return 0;
}
int nilfs_mdt_fetch_dirty(struct inode *inode)
{
struct nilfs_inode_info *ii = NILFS_I(inode);
@ -497,8 +466,32 @@ int nilfs_mdt_init(struct inode *inode, gfp_t gfp_mask, size_t objsz)
return 0;
}
void nilfs_mdt_set_entry_size(struct inode *inode, unsigned entry_size,
unsigned header_size)
/**
* nilfs_mdt_clear - do cleanup for the metadata file
* @inode: inode of the metadata file
*/
void nilfs_mdt_clear(struct inode *inode)
{
struct nilfs_mdt_info *mdi = NILFS_MDT(inode);
if (mdi->mi_palloc_cache)
nilfs_palloc_destroy_cache(inode);
}
/**
* nilfs_mdt_destroy - release resources used by the metadata file
* @inode: inode of the metadata file
*/
void nilfs_mdt_destroy(struct inode *inode)
{
struct nilfs_mdt_info *mdi = NILFS_MDT(inode);
kfree(mdi->mi_bgl); /* kfree(NULL) is safe */
kfree(mdi);
}
void nilfs_mdt_set_entry_size(struct inode *inode, unsigned int entry_size,
unsigned int header_size)
{
struct nilfs_mdt_info *mi = NILFS_MDT(inode);

21
fs/nilfs2/mdt.h
View File

@ -13,11 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Ryusuke Konishi <ryusuke@osrg.net>
* Written by Ryusuke Konishi.
*/
#ifndef _NILFS_MDT_H
@ -57,8 +53,8 @@ struct nilfs_shadow_map {
struct nilfs_mdt_info {
struct rw_semaphore mi_sem;
struct blockgroup_lock *mi_bgl;
unsigned mi_entry_size;
unsigned mi_first_entry_offset;
unsigned int mi_entry_size;
unsigned int mi_first_entry_offset;
unsigned long mi_entries_per_block;
struct nilfs_palloc_cache *mi_palloc_cache;
struct nilfs_shadow_map *mi_shadow;
@ -71,6 +67,11 @@ static inline struct nilfs_mdt_info *NILFS_MDT(const struct inode *inode)
return inode->i_private;
}
static inline int nilfs_is_metadata_file_inode(const struct inode *inode)
{
return inode->i_private != NULL;
}
/* Default GFP flags using highmem */
#define NILFS_MDT_GFP (__GFP_RECLAIM | __GFP_IO | __GFP_HIGHMEM)
@ -83,11 +84,13 @@ int nilfs_mdt_find_block(struct inode *inode, unsigned long start,
struct buffer_head **out_bh);
int nilfs_mdt_delete_block(struct inode *, unsigned long);
int nilfs_mdt_forget_block(struct inode *, unsigned long);
int nilfs_mdt_mark_block_dirty(struct inode *, unsigned long);
int nilfs_mdt_fetch_dirty(struct inode *);
int nilfs_mdt_init(struct inode *inode, gfp_t gfp_mask, size_t objsz);
void nilfs_mdt_set_entry_size(struct inode *, unsigned, unsigned);
void nilfs_mdt_clear(struct inode *inode);
void nilfs_mdt_destroy(struct inode *inode);
void nilfs_mdt_set_entry_size(struct inode *, unsigned int, unsigned int);
int nilfs_mdt_setup_shadow_map(struct inode *inode,
struct nilfs_shadow_map *shadow);

12
fs/nilfs2/namei.c
View File

@ -13,12 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Modified for NILFS by Amagai Yoshiji <amagai@osrg.net>,
* Ryusuke Konishi <ryusuke@osrg.net>
* Modified for NILFS by Amagai Yoshiji and Ryusuke Konishi.
*/
/*
* linux/fs/ext2/namei.c
@ -49,6 +44,7 @@
static inline int nilfs_add_nondir(struct dentry *dentry, struct inode *inode)
{
int err = nilfs_add_link(dentry, inode);
if (!err) {
d_instantiate(dentry, inode);
unlock_new_inode(inode);
@ -143,7 +139,7 @@ static int nilfs_symlink(struct inode *dir, struct dentry *dentry,
{
struct nilfs_transaction_info ti;
struct super_block *sb = dir->i_sb;
unsigned l = strlen(symname)+1;
unsigned int l = strlen(symname) + 1;
struct inode *inode;
int err;
@ -288,7 +284,7 @@ static int nilfs_do_unlink(struct inode *dir, struct dentry *dentry)
if (!inode->i_nlink) {
nilfs_warning(inode->i_sb, __func__,
"deleting nonexistent file (%lu), %d\n",
"deleting nonexistent file (%lu), %d",
inode->i_ino, inode->i_nlink);
set_nlink(inode, 1);
}

33
fs/nilfs2/nilfs.h
View File

@ -13,12 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Koji Sato <koji@osrg.net>
* Ryusuke Konishi <ryusuke@osrg.net>
* Written by Koji Sato and Ryusuke Konishi.
*/
#ifndef _NILFS_H
@ -69,8 +64,10 @@ struct nilfs_inode_info {
*/
struct rw_semaphore xattr_sem;
#endif
struct buffer_head *i_bh; /* i_bh contains a new or dirty
disk inode */
struct buffer_head *i_bh; /*
* i_bh contains a new or dirty
* disk inode.
*/
struct nilfs_root *i_root;
struct inode vfs_inode;
};
@ -100,8 +97,10 @@ enum {
NILFS_I_NEW = 0, /* Inode is newly created */
NILFS_I_DIRTY, /* The file is dirty */
NILFS_I_QUEUED, /* inode is in dirty_files list */
NILFS_I_BUSY, /* inode is grabbed by a segment
constructor */
NILFS_I_BUSY, /*
* Inode is grabbed by a segment
* constructor
*/
NILFS_I_COLLECTED, /* All dirty blocks are collected */
NILFS_I_UPDATED, /* The file has been written back */
NILFS_I_INODE_SYNC, /* dsync is not allowed for inode */
@ -145,8 +144,10 @@ enum {
struct nilfs_transaction_info {
u32 ti_magic;
void *ti_save;
/* This should never used. If this happens,
one of other filesystems has a bug. */
/*
* This should never be used. If it happens,
* one of other filesystems has a bug.
*/
unsigned short ti_flags;
unsigned short ti_count;
};
@ -156,8 +157,10 @@ struct nilfs_transaction_info {
/* ti_flags */
#define NILFS_TI_DYNAMIC_ALLOC 0x0001 /* Allocated from slab */
#define NILFS_TI_SYNC 0x0002 /* Force to construct segment at the
end of transaction. */
#define NILFS_TI_SYNC 0x0002 /*
* Force to construct segment at the
* end of transaction.
*/
#define NILFS_TI_GC 0x0004 /* GC context */
#define NILFS_TI_COMMIT 0x0008 /* Change happened or not */
#define NILFS_TI_WRITER 0x0010 /* Constructor context */
@ -279,7 +282,7 @@ extern void nilfs_write_failed(struct address_space *mapping, loff_t to);
int nilfs_permission(struct inode *inode, int mask);
int nilfs_load_inode_block(struct inode *inode, struct buffer_head **pbh);
extern int nilfs_inode_dirty(struct inode *);
int nilfs_set_file_dirty(struct inode *inode, unsigned nr_dirty);
int nilfs_set_file_dirty(struct inode *inode, unsigned int nr_dirty);
extern int __nilfs_mark_inode_dirty(struct inode *, int);
extern void nilfs_dirty_inode(struct inode *, int flags);
int nilfs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,

15
fs/nilfs2/page.c
View File

@ -13,12 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Ryusuke Konishi <ryusuke@osrg.net>,
* Seiji Kihara <kihara@osrg.net>.
* Written by Ryusuke Konishi and Seiji Kihara.
*/
#include <linux/pagemap.h>
@ -440,12 +435,12 @@ void nilfs_clear_dirty_page(struct page *page, bool silent)
__nilfs_clear_page_dirty(page);
}
unsigned nilfs_page_count_clean_buffers(struct page *page,
unsigned from, unsigned to)
unsigned int nilfs_page_count_clean_buffers(struct page *page,
unsigned int from, unsigned int to)
{
unsigned block_start, block_end;
unsigned int block_start, block_end;
struct buffer_head *bh, *head;
unsigned nc = 0;
unsigned int nc = 0;
for (bh = head = page_buffers(page), block_start = 0;
bh != head || !block_start;

10
fs/nilfs2/page.h
View File

@ -13,12 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Ryusuke Konishi <ryusuke@osrg.net>,
* Seiji Kihara <kihara@osrg.net>.
* Written by Ryusuke Konishi and Seiji Kihara.
*/
#ifndef _NILFS_PAGE_H
@ -58,7 +53,8 @@ void nilfs_copy_back_pages(struct address_space *, struct address_space *);
void nilfs_clear_dirty_page(struct page *, bool);
void nilfs_clear_dirty_pages(struct address_space *, bool);
void nilfs_mapping_init(struct address_space *mapping, struct inode *inode);
unsigned nilfs_page_count_clean_buffers(struct page *, unsigned, unsigned);
unsigned int nilfs_page_count_clean_buffers(struct page *, unsigned int,
unsigned int);
unsigned long nilfs_find_uncommitted_extent(struct inode *inode,
sector_t start_blk,
sector_t *blkoff);

25
fs/nilfs2/recovery.c
View File

@ -13,11 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Ryusuke Konishi <ryusuke@osrg.net>
* Written by Ryusuke Konishi.
*/
#include <linux/buffer_head.h>
@ -47,8 +43,10 @@ enum {
/* work structure for recovery */
struct nilfs_recovery_block {
ino_t ino; /* Inode number of the file that this block
belongs to */
ino_t ino; /*
* Inode number of the file that this block
* belongs to
*/
sector_t blocknr; /* block number */
__u64 vblocknr; /* virtual block number */
unsigned long blkoff; /* File offset of the data block (per block) */
@ -156,7 +154,7 @@ int nilfs_read_super_root_block(struct the_nilfs *nilfs, sector_t sr_block,
sr = (struct nilfs_super_root *)bh_sr->b_data;
if (check) {
unsigned bytes = le16_to_cpu(sr->sr_bytes);
unsigned int bytes = le16_to_cpu(sr->sr_bytes);
if (bytes == 0 || bytes > nilfs->ns_blocksize) {
ret = NILFS_SEG_FAIL_CHECKSUM_SUPER_ROOT;
@ -508,7 +506,7 @@ static int nilfs_recover_dsync_blocks(struct the_nilfs *nilfs,
{
struct inode *inode;
struct nilfs_recovery_block *rb, *n;
unsigned blocksize = nilfs->ns_blocksize;
unsigned int blocksize = nilfs->ns_blocksize;
struct page *page;
loff_t pos;
int err = 0, err2 = 0;
@ -526,6 +524,7 @@ static int nilfs_recover_dsync_blocks(struct the_nilfs *nilfs,
0, &page, nilfs_get_block);
if (unlikely(err)) {
loff_t isize = inode->i_size;
if (pos + blocksize > isize)
nilfs_write_failed(inode->i_mapping,
pos + blocksize);
@ -872,9 +871,11 @@ int nilfs_search_super_root(struct the_nilfs *nilfs,
flags = le16_to_cpu(sum->ss_flags);
if (!(flags & NILFS_SS_SR) && !scan_newer) {
/* This will never happen because a superblock
(last_segment) always points to a pseg
having a super root. */
/*
* This will never happen because a superblock
* (last_segment) always points to a pseg with
* a super root.
*/
ret = NILFS_SEG_FAIL_CONSISTENCY;
goto failed;
}

10
fs/nilfs2/segbuf.c
View File

@ -13,11 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Ryusuke Konishi <ryusuke@osrg.net>
* Written by Ryusuke Konishi.
*
*/
@ -133,7 +129,7 @@ int nilfs_segbuf_extend_payload(struct nilfs_segment_buffer *segbuf,
return 0;
}
int nilfs_segbuf_reset(struct nilfs_segment_buffer *segbuf, unsigned flags,
int nilfs_segbuf_reset(struct nilfs_segment_buffer *segbuf, unsigned int flags,
time_t ctime, __u64 cno)
{
int err;
@ -240,7 +236,7 @@ nilfs_segbuf_fill_in_super_root_crc(struct nilfs_segment_buffer *segbuf,
{
struct nilfs_super_root *raw_sr;
struct the_nilfs *nilfs = segbuf->sb_super->s_fs_info;
unsigned srsize;
unsigned int srsize;
u32 crc;
raw_sr = (struct nilfs_super_root *)segbuf->sb_super_root->b_data;

11
fs/nilfs2/segbuf.h
View File

@ -13,11 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Ryusuke Konishi <ryusuke@osrg.net>
* Written by Ryusuke Konishi.
*
*/
#ifndef _NILFS_SEGBUF_H
@ -82,7 +78,7 @@ struct nilfs_segment_buffer {
__u64 sb_nextnum;
sector_t sb_fseg_start, sb_fseg_end;
sector_t sb_pseg_start;
unsigned sb_rest_blocks;
unsigned int sb_rest_blocks;
/* Buffers */
struct list_head sb_segsum_buffers;
@ -124,7 +120,8 @@ void nilfs_segbuf_map_cont(struct nilfs_segment_buffer *segbuf,
struct nilfs_segment_buffer *prev);
void nilfs_segbuf_set_next_segnum(struct nilfs_segment_buffer *, __u64,
struct the_nilfs *);
int nilfs_segbuf_reset(struct nilfs_segment_buffer *, unsigned, time_t, __u64);
int nilfs_segbuf_reset(struct nilfs_segment_buffer *, unsigned int, time_t,
__u64);
int nilfs_segbuf_extend_segsum(struct nilfs_segment_buffer *);
int nilfs_segbuf_extend_payload(struct nilfs_segment_buffer *,
struct buffer_head **);

125
fs/nilfs2/segment.c
View File

@ -13,11 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Ryusuke Konishi <ryusuke@osrg.net>
* Written by Ryusuke Konishi.
*
*/
@ -49,18 +45,26 @@
*/
#define SC_N_INODEVEC 16 /* Size of locally allocated inode vector */
#define SC_MAX_SEGDELTA 64 /* Upper limit of the number of segments
appended in collection retry loop */
#define SC_MAX_SEGDELTA 64 /*
* Upper limit of the number of segments
* appended in collection retry loop
*/
/* Construction mode */
enum {
SC_LSEG_SR = 1, /* Make a logical segment having a super root */
SC_LSEG_DSYNC, /* Flush data blocks of a given file and make
a logical segment without a super root */
SC_FLUSH_FILE, /* Flush data files, leads to segment writes without
creating a checkpoint */
SC_FLUSH_DAT, /* Flush DAT file. This also creates segments without
a checkpoint */
SC_LSEG_DSYNC, /*
* Flush data blocks of a given file and make
* a logical segment without a super root.
*/
SC_FLUSH_FILE, /*
* Flush data files, leads to segment writes without
* creating a checkpoint.
*/
SC_FLUSH_DAT, /*
* Flush DAT file. This also creates segments
* without a checkpoint.
*/
};
/* Stage numbers of dirty block collection */
@ -154,17 +158,15 @@ static int nilfs_prepare_segment_lock(struct nilfs_transaction_info *ti)
if (cur_ti) {
if (cur_ti->ti_magic == NILFS_TI_MAGIC)
return ++cur_ti->ti_count;
else {
/*
* If journal_info field is occupied by other FS,
* it is saved and will be restored on
* nilfs_transaction_commit().
*/
printk(KERN_WARNING
"NILFS warning: journal info from a different "
"FS\n");
save = current->journal_info;
}
/*
* If journal_info field is occupied by other FS,
* it is saved and will be restored on
* nilfs_transaction_commit().
*/
printk(KERN_WARNING
"NILFS warning: journal info from a different FS\n");
save = current->journal_info;
}
if (!ti) {
ti = kmem_cache_alloc(nilfs_transaction_cachep, GFP_NOFS);
@ -397,10 +399,10 @@ static void nilfs_transaction_unlock(struct super_block *sb)
static void *nilfs_segctor_map_segsum_entry(struct nilfs_sc_info *sci,
struct nilfs_segsum_pointer *ssp,
unsigned bytes)
unsigned int bytes)
{
struct nilfs_segment_buffer *segbuf = sci->sc_curseg;
unsigned blocksize = sci->sc_super->s_blocksize;
unsigned int blocksize = sci->sc_super->s_blocksize;
void *p;
if (unlikely(ssp->offset + bytes > blocksize)) {
@ -422,8 +424,8 @@ static int nilfs_segctor_reset_segment_buffer(struct nilfs_sc_info *sci)
{
struct nilfs_segment_buffer *segbuf = sci->sc_curseg;
struct buffer_head *sumbh;
unsigned sumbytes;
unsigned flags = 0;
unsigned int sumbytes;
unsigned int flags = 0;
int err;
if (nilfs_doing_gc())
@ -444,8 +446,10 @@ static int nilfs_segctor_feed_segment(struct nilfs_sc_info *sci)
{
sci->sc_nblk_this_inc += sci->sc_curseg->sb_sum.nblocks;
if (NILFS_SEGBUF_IS_LAST(sci->sc_curseg, &sci->sc_segbufs))
return -E2BIG; /* The current segment is filled up
(internal code) */
return -E2BIG; /*
* The current segment is filled up
* (internal code)
*/
sci->sc_curseg = NILFS_NEXT_SEGBUF(sci->sc_curseg);
return nilfs_segctor_reset_segment_buffer(sci);
}
@ -472,9 +476,9 @@ static int nilfs_segctor_add_super_root(struct nilfs_sc_info *sci)
*/
static int nilfs_segctor_segsum_block_required(
struct nilfs_sc_info *sci, const struct nilfs_segsum_pointer *ssp,
unsigned binfo_size)
unsigned int binfo_size)
{
unsigned blocksize = sci->sc_super->s_blocksize;
unsigned int blocksize = sci->sc_super->s_blocksize;
/* Size of finfo and binfo is enough small against blocksize */
return ssp->offset + binfo_size +
@ -533,7 +537,7 @@ static void nilfs_segctor_end_finfo(struct nilfs_sc_info *sci,
static int nilfs_segctor_add_file_block(struct nilfs_sc_info *sci,
struct buffer_head *bh,
struct inode *inode,
unsigned binfo_size)
unsigned int binfo_size)
{
struct nilfs_segment_buffer *segbuf;
int required, err = 0;
@ -617,7 +621,7 @@ static void nilfs_write_file_node_binfo(struct nilfs_sc_info *sci,
*vblocknr = binfo->bi_v.bi_vblocknr;
}
static struct nilfs_sc_operations nilfs_sc_file_ops = {
static const struct nilfs_sc_operations nilfs_sc_file_ops = {
.collect_data = nilfs_collect_file_data,
.collect_node = nilfs_collect_file_node,
.collect_bmap = nilfs_collect_file_bmap,
@ -666,7 +670,7 @@ static void nilfs_write_dat_node_binfo(struct nilfs_sc_info *sci,
*binfo_dat = binfo->bi_dat;
}
static struct nilfs_sc_operations nilfs_sc_dat_ops = {
static const struct nilfs_sc_operations nilfs_sc_dat_ops = {
.collect_data = nilfs_collect_dat_data,
.collect_node = nilfs_collect_file_node,
.collect_bmap = nilfs_collect_dat_bmap,
@ -674,7 +678,7 @@ static struct nilfs_sc_operations nilfs_sc_dat_ops = {
.write_node_binfo = nilfs_write_dat_node_binfo,
};
static struct nilfs_sc_operations nilfs_sc_dsync_ops = {
static const struct nilfs_sc_operations nilfs_sc_dsync_ops = {
.collect_data = nilfs_collect_file_data,
.collect_node = NULL,
.collect_bmap = NULL,
@ -777,7 +781,7 @@ static void nilfs_dispose_list(struct the_nilfs *nilfs,
{
struct nilfs_inode_info *ii, *n;
struct nilfs_inode_info *ivec[SC_N_INODEVEC], **pii;
unsigned nv = 0;
unsigned int nv = 0;
while (!list_empty(head)) {
spin_lock(&nilfs->ns_inode_lock);
@ -875,9 +879,11 @@ static int nilfs_segctor_create_checkpoint(struct nilfs_sc_info *sci)
err = nilfs_cpfile_get_checkpoint(nilfs->ns_cpfile, nilfs->ns_cno, 1,
&raw_cp, &bh_cp);
if (likely(!err)) {
/* The following code is duplicated with cpfile. But, it is
needed to collect the checkpoint even if it was not newly
created */
/*
* The following code is duplicated with cpfile. But, it is
* needed to collect the checkpoint even if it was not newly
* created.
*/
mark_buffer_dirty(bh_cp);
nilfs_mdt_mark_dirty(nilfs->ns_cpfile);
nilfs_cpfile_put_checkpoint(
@ -958,7 +964,7 @@ static void nilfs_segctor_fill_in_super_root(struct nilfs_sc_info *sci,
{
struct buffer_head *bh_sr;
struct nilfs_super_root *raw_sr;
unsigned isz, srsz;
unsigned int isz, srsz;
bh_sr = NILFS_LAST_SEGBUF(&sci->sc_segbufs)->sb_super_root;
raw_sr = (struct nilfs_super_root *)bh_sr->b_data;
@ -1043,7 +1049,7 @@ static size_t nilfs_segctor_buffer_rest(struct nilfs_sc_info *sci)
static int nilfs_segctor_scan_file(struct nilfs_sc_info *sci,
struct inode *inode,
struct nilfs_sc_operations *sc_ops)
const struct nilfs_sc_operations *sc_ops)
{
LIST_HEAD(data_buffers);
LIST_HEAD(node_buffers);
@ -1406,8 +1412,10 @@ static void nilfs_free_incomplete_logs(struct list_head *logs,
if (atomic_read(&segbuf->sb_err)) {
/* Case 1: The first segment failed */
if (segbuf->sb_pseg_start != segbuf->sb_fseg_start)
/* Case 1a: Partial segment appended into an existing
segment */
/*
* Case 1a: Partial segment appended into an existing
* segment
*/
nilfs_terminate_segment(nilfs, segbuf->sb_fseg_start,
segbuf->sb_fseg_end);
else /* Case 1b: New full segment */
@ -1550,7 +1558,7 @@ nilfs_segctor_update_payload_blocknr(struct nilfs_sc_info *sci,
sector_t blocknr;
unsigned long nfinfo = segbuf->sb_sum.nfinfo;
unsigned long nblocks = 0, ndatablk = 0;
struct nilfs_sc_operations *sc_op = NULL;
const struct nilfs_sc_operations *sc_op = NULL;
struct nilfs_segsum_pointer ssp;
struct nilfs_finfo *finfo = NULL;
union nilfs_binfo binfo;
@ -1631,8 +1639,10 @@ static int nilfs_segctor_assign(struct nilfs_sc_info *sci, int mode)
static void nilfs_begin_page_io(struct page *page)
{
if (!page || PageWriteback(page))
/* For split b-tree node pages, this function may be called
twice. We ignore the 2nd or later calls by this check. */
/*
* For split b-tree node pages, this function may be called
* twice. We ignore the 2nd or later calls by this check.
*/
return;
lock_page(page);
@ -1942,7 +1952,7 @@ static int nilfs_segctor_collect_dirty_files(struct nilfs_sc_info *sci,
ifile, ii->vfs_inode.i_ino, &ibh);
if (unlikely(err)) {
nilfs_warning(sci->sc_super, __func__,
"failed to get inode block.\n");
"failed to get inode block.");
return err;
}
mark_buffer_dirty(ibh);
@ -2395,6 +2405,7 @@ static int nilfs_segctor_construct(struct nilfs_sc_info *sci, int mode)
static void nilfs_construction_timeout(unsigned long data)
{
struct task_struct *p = (struct task_struct *)data;
wake_up_process(p);
}
@ -2555,10 +2566,10 @@ static int nilfs_segctor_thread(void *arg)
if (timeout || sci->sc_seq_request != sci->sc_seq_done)
mode = SC_LSEG_SR;
else if (!sci->sc_flush_request)
break;
else
else if (sci->sc_flush_request)
mode = nilfs_segctor_flush_mode(sci);
else
break;
spin_unlock(&sci->sc_state_lock);
nilfs_segctor_thread_construct(sci, mode);
@ -2684,8 +2695,10 @@ static void nilfs_segctor_write_out(struct nilfs_sc_info *sci)
{
int ret, retrycount = NILFS_SC_CLEANUP_RETRY;
/* The segctord thread was stopped and its timer was removed.
But some tasks remain. */
/*
* The segctord thread was stopped and its timer was removed.
* But some tasks remain.
*/
do {
struct nilfs_transaction_info ti;
@ -2727,13 +2740,13 @@ static void nilfs_segctor_destroy(struct nilfs_sc_info *sci)
if (!list_empty(&sci->sc_dirty_files)) {
nilfs_warning(sci->sc_super, __func__,
"dirty file(s) after the final construction\n");
"dirty file(s) after the final construction");
nilfs_dispose_list(nilfs, &sci->sc_dirty_files, 1);
}
if (!list_empty(&sci->sc_iput_queue)) {
nilfs_warning(sci->sc_super, __func__,
"iput queue is not empty\n");
"iput queue is not empty");
nilfs_dispose_list(nilfs, &sci->sc_iput_queue, 1);
}
@ -2810,7 +2823,7 @@ void nilfs_detach_log_writer(struct super_block *sb)
if (!list_empty(&nilfs->ns_dirty_files)) {
list_splice_init(&nilfs->ns_dirty_files, &garbage_list);
nilfs_warning(sb, __func__,
"Hit dirty file after stopped log writer\n");
"Hit dirty file after stopped log writer");
}
spin_unlock(&nilfs->ns_inode_lock);
up_write(&nilfs->ns_segctor_sem);

44
fs/nilfs2/segment.h
View File

@ -13,11 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Ryusuke Konishi <ryusuke@osrg.net>
* Written by Ryusuke Konishi.
*
*/
#ifndef _NILFS_SEGMENT_H
@ -75,7 +71,7 @@ struct nilfs_recovery_info {
*/
struct nilfs_cstage {
int scnt;
unsigned flags;
unsigned int flags;
struct nilfs_inode_info *dirty_file_ptr;
struct nilfs_inode_info *gc_inode_ptr;
};
@ -84,7 +80,7 @@ struct nilfs_segment_buffer;
struct nilfs_segsum_pointer {
struct buffer_head *bh;
unsigned offset; /* offset in bytes */
unsigned int offset; /* offset in bytes */
};
/**
@ -193,11 +189,15 @@ enum {
NILFS_SC_DIRTY, /* One or more dirty meta-data blocks exist */
NILFS_SC_UNCLOSED, /* Logical segment is not closed */
NILFS_SC_SUPER_ROOT, /* The latest segment has a super root */
NILFS_SC_PRIOR_FLUSH, /* Requesting immediate flush without making a
checkpoint */
NILFS_SC_HAVE_DELTA, /* Next checkpoint will have update of files
other than DAT, cpfile, sufile, or files
moved by GC */
NILFS_SC_PRIOR_FLUSH, /*
* Requesting immediate flush without making a
* checkpoint
*/
NILFS_SC_HAVE_DELTA, /*
* Next checkpoint will have update of files
* other than DAT, cpfile, sufile, or files
* moved by GC.
*/
};
/* sc_state */
@ -207,17 +207,23 @@ enum {
/*
* Constant parameters
*/
#define NILFS_SC_CLEANUP_RETRY 3 /* Retry count of construction when
destroying segctord */
#define NILFS_SC_CLEANUP_RETRY 3 /*
* Retry count of construction when
* destroying segctord
*/
/*
* Default values of timeout, in seconds.
*/
#define NILFS_SC_DEFAULT_TIMEOUT 5 /* Timeout value of dirty blocks.
It triggers construction of a
logical segment with a super root */
#define NILFS_SC_DEFAULT_SR_FREQ 30 /* Maximum frequency of super root
creation */
#define NILFS_SC_DEFAULT_TIMEOUT 5 /*
* Timeout value of dirty blocks.
* It triggers construction of a
* logical segment with a super root.
*/
#define NILFS_SC_DEFAULT_SR_FREQ 30 /*
* Maximum frequency of super root
* creation
*/
/*
* The default threshold amount of data, in block counts.

14
fs/nilfs2/sufile.c
View File

@ -13,12 +13,8 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Koji Sato <koji@osrg.net>.
* Revised by Ryusuke Konishi <ryusuke@osrg.net>.
* Written by Koji Sato.
* Revised by Ryusuke Konishi.
*/
#include <linux/kernel.h>
@ -61,6 +57,7 @@ static unsigned long
nilfs_sufile_get_blkoff(const struct inode *sufile, __u64 segnum)
{
__u64 t = segnum + NILFS_MDT(sufile)->mi_first_entry_offset;
do_div(t, nilfs_sufile_segment_usages_per_block(sufile));
return (unsigned long)t;
}
@ -69,6 +66,7 @@ static unsigned long
nilfs_sufile_get_offset(const struct inode *sufile, __u64 segnum)
{
__u64 t = segnum + NILFS_MDT(sufile)->mi_first_entry_offset;
return do_div(t, nilfs_sufile_segment_usages_per_block(sufile));
}
@ -819,7 +817,7 @@ out:
* %-ENOMEM - Insufficient amount of memory available.
*/
ssize_t nilfs_sufile_get_suinfo(struct inode *sufile, __u64 segnum, void *buf,
unsigned sisz, size_t nsi)
unsigned int sisz, size_t nsi)
{
struct buffer_head *su_bh;
struct nilfs_segment_usage *su;
@ -897,7 +895,7 @@ ssize_t nilfs_sufile_get_suinfo(struct inode *sufile, __u64 segnum, void *buf,
* %-EINVAL - Invalid values in input (segment number, flags or nblocks)
*/
ssize_t nilfs_sufile_set_suinfo(struct inode *sufile, void *buf,
unsigned supsz, size_t nsup)
unsigned int supsz, size_t nsup)
{
struct the_nilfs *nilfs = sufile->i_sb->s_fs_info;
struct buffer_head *header_bh, *bh;

10
fs/nilfs2/sufile.h
View File

@ -13,11 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Koji Sato <koji@osrg.net>.
* Written by Koji Sato.
*/
#ifndef _NILFS_SUFILE_H
@ -42,9 +38,9 @@ int nilfs_sufile_mark_dirty(struct inode *sufile, __u64 segnum);
int nilfs_sufile_set_segment_usage(struct inode *sufile, __u64 segnum,
unsigned long nblocks, time_t modtime);
int nilfs_sufile_get_stat(struct inode *, struct nilfs_sustat *);
ssize_t nilfs_sufile_get_suinfo(struct inode *, __u64, void *, unsigned,
ssize_t nilfs_sufile_get_suinfo(struct inode *, __u64, void *, unsigned int,
size_t);
ssize_t nilfs_sufile_set_suinfo(struct inode *, void *, unsigned , size_t);
ssize_t nilfs_sufile_set_suinfo(struct inode *, void *, unsigned int, size_t);
int nilfs_sufile_updatev(struct inode *, __u64 *, size_t, int, size_t *,
void (*dofunc)(struct inode *, __u64,

21
fs/nilfs2/super.c
View File

@ -13,11 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Ryusuke Konishi <ryusuke@osrg.net>
* Written by Ryusuke Konishi.
*/
/*
* linux/fs/ext2/super.c
@ -173,12 +169,10 @@ struct inode *nilfs_alloc_inode(struct super_block *sb)
static void nilfs_i_callback(struct rcu_head *head)
{
struct inode *inode = container_of(head, struct inode, i_rcu);
struct nilfs_mdt_info *mdi = NILFS_MDT(inode);
if (mdi) {
kfree(mdi->mi_bgl); /* kfree(NULL) is safe */
kfree(mdi);
}
if (nilfs_is_metadata_file_inode(inode))
nilfs_mdt_destroy(inode);
kmem_cache_free(nilfs_inode_cachep, NILFS_I(inode));
}
@ -279,7 +273,7 @@ struct nilfs_super_block **nilfs_prepare_super(struct super_block *sb,
}
} else if (sbp[1] &&
sbp[1]->s_magic != cpu_to_le16(NILFS_SUPER_MAGIC)) {
memcpy(sbp[1], sbp[0], nilfs->ns_sbsize);
memcpy(sbp[1], sbp[0], nilfs->ns_sbsize);
}
if (flip && sbp[1])
@ -749,6 +743,7 @@ static int parse_options(char *options, struct super_block *sb, int is_remount)
while ((p = strsep(&options, ",")) != NULL) {
int token;
if (!*p)
continue;
@ -891,7 +886,7 @@ int nilfs_store_magic_and_option(struct super_block *sb,
nilfs->ns_interval = le32_to_cpu(sbp->s_c_interval);
nilfs->ns_watermark = le32_to_cpu(sbp->s_c_block_max);
return !parse_options(data, sb, 0) ? -EINVAL : 0 ;
return !parse_options(data, sb, 0) ? -EINVAL : 0;
}
int nilfs_check_feature_compatibility(struct super_block *sb,
@ -1316,7 +1311,7 @@ nilfs_mount(struct file_system_type *fs_type, int flags,
}
if (!s->s_root) {
s_new = true;
s_new = true;
/* New superblock instance created */
s->s_mode = mode;

10
fs/nilfs2/sysfs.c
View File

@ -68,7 +68,7 @@ static ssize_t nilfs_##name##_attr_store(struct kobject *kobj, \
static const struct sysfs_ops nilfs_##name##_attr_ops = { \
.show = nilfs_##name##_attr_show, \
.store = nilfs_##name##_attr_store, \
};
}
#define NILFS_DEV_INT_GROUP_TYPE(name, parent_name) \
static void nilfs_##name##_attr_release(struct kobject *kobj) \
@ -84,7 +84,7 @@ static struct kobj_type nilfs_##name##_ktype = { \
.default_attrs = nilfs_##name##_attrs, \
.sysfs_ops = &nilfs_##name##_attr_ops, \
.release = nilfs_##name##_attr_release, \
};
}
#define NILFS_DEV_INT_GROUP_FNS(name, parent_name) \
static int nilfs_sysfs_create_##name##_group(struct the_nilfs *nilfs) \
@ -756,7 +756,7 @@ nilfs_superblock_sb_write_count_show(struct nilfs_superblock_attr *attr,
struct the_nilfs *nilfs,
char *buf)
{
unsigned sbwcount;
unsigned int sbwcount;
down_read(&nilfs->ns_sem);
sbwcount = nilfs->ns_sbwcount;
@ -770,7 +770,7 @@ nilfs_superblock_sb_update_frequency_show(struct nilfs_superblock_attr *attr,
struct the_nilfs *nilfs,
char *buf)
{
unsigned sb_update_freq;
unsigned int sb_update_freq;
down_read(&nilfs->ns_sem);
sb_update_freq = nilfs->ns_sb_update_freq;
@ -784,7 +784,7 @@ nilfs_superblock_sb_update_frequency_store(struct nilfs_superblock_attr *attr,
struct the_nilfs *nilfs,
const char *buf, size_t count)
{
unsigned val;
unsigned int val;
int err;
err = kstrtouint(skip_spaces(buf), 0, &val);

6
fs/nilfs2/sysfs.h
View File

@ -66,7 +66,7 @@ struct nilfs_##name##_attr { \
char *); \
ssize_t (*store)(struct kobject *, struct attribute *, \
const char *, size_t); \
};
}
NILFS_COMMON_ATTR_STRUCT(feature);
@ -77,7 +77,7 @@ struct nilfs_##name##_attr { \
char *); \
ssize_t (*store)(struct nilfs_##name##_attr *, struct the_nilfs *, \
const char *, size_t); \
};
}
NILFS_DEV_ATTR_STRUCT(dev);
NILFS_DEV_ATTR_STRUCT(segments);
@ -93,7 +93,7 @@ struct nilfs_##name##_attr { \
char *); \
ssize_t (*store)(struct nilfs_##name##_attr *, struct nilfs_root *, \
const char *, size_t); \
};
}
NILFS_CP_ATTR_STRUCT(snapshot);

16
fs/nilfs2/the_nilfs.c
View File

@ -13,11 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Ryusuke Konishi <ryusuke@osrg.net>
* Written by Ryusuke Konishi.
*
*/
@ -112,8 +108,8 @@ static int nilfs_load_super_root(struct the_nilfs *nilfs,
struct nilfs_super_root *raw_sr;
struct nilfs_super_block **sbp = nilfs->ns_sbp;
struct nilfs_inode *rawi;
unsigned dat_entry_size, segment_usage_size, checkpoint_size;
unsigned inode_size;
unsigned int dat_entry_size, segment_usage_size, checkpoint_size;
unsigned int inode_size;
int err;
err = nilfs_read_super_root_block(nilfs, sr_block, &bh_sr, 1);
@ -621,8 +617,10 @@ int init_nilfs(struct the_nilfs *nilfs, struct super_block *sb, char *data)
err = nilfs_load_super_block(nilfs, sb, blocksize, &sbp);
if (err)
goto out;
/* not failed_sbh; sbh is released automatically
when reloading fails. */
/*
* Not to failed_sbh; sbh is released automatically
* when reloading fails.
*/
}
nilfs->ns_blocksize_bits = sb->s_blocksize_bits;
nilfs->ns_blocksize = blocksize;

27
fs/nilfs2/the_nilfs.h
View File

@ -13,11 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Ryusuke Konishi <ryusuke@osrg.net>
* Written by Ryusuke Konishi.
*
*/
@ -118,10 +114,10 @@ struct the_nilfs {
struct buffer_head *ns_sbh[2];
struct nilfs_super_block *ns_sbp[2];
time_t ns_sbwtime;
unsigned ns_sbwcount;
unsigned ns_sbsize;
unsigned ns_mount_state;
unsigned ns_sb_update_freq;
unsigned int ns_sbwcount;
unsigned int ns_sbsize;
unsigned int ns_mount_state;
unsigned int ns_sb_update_freq;
/*
* Following fields are dedicated to a writable FS-instance.
@ -226,15 +222,14 @@ THE_NILFS_FNS(SB_DIRTY, sb_dirty)
* Mount option operations
*/
#define nilfs_clear_opt(nilfs, opt) \
do { (nilfs)->ns_mount_opt &= ~NILFS_MOUNT_##opt; } while (0)
((nilfs)->ns_mount_opt &= ~NILFS_MOUNT_##opt)
#define nilfs_set_opt(nilfs, opt) \
do { (nilfs)->ns_mount_opt |= NILFS_MOUNT_##opt; } while (0)
((nilfs)->ns_mount_opt |= NILFS_MOUNT_##opt)
#define nilfs_test_opt(nilfs, opt) ((nilfs)->ns_mount_opt & NILFS_MOUNT_##opt)
#define nilfs_write_opt(nilfs, mask, opt) \
do { (nilfs)->ns_mount_opt = \
((nilfs)->ns_mount_opt = \
(((nilfs)->ns_mount_opt & ~NILFS_MOUNT_##mask) | \
NILFS_MOUNT_##opt); \
} while (0)
NILFS_MOUNT_##opt)) \
/**
* struct nilfs_root - nilfs root object
@ -273,6 +268,7 @@ struct nilfs_root {
static inline int nilfs_sb_need_update(struct the_nilfs *nilfs)
{
u64 t = get_seconds();
return t < nilfs->ns_sbwtime ||
t > nilfs->ns_sbwtime + nilfs->ns_sb_update_freq;
}
@ -280,6 +276,7 @@ static inline int nilfs_sb_need_update(struct the_nilfs *nilfs)
static inline int nilfs_sb_will_flip(struct the_nilfs *nilfs)
{
int flip_bits = nilfs->ns_sbwcount & 0x0FL;
return (flip_bits != 0x08 && flip_bits != 0x0F);
}
@ -308,7 +305,7 @@ static inline void nilfs_get_root(struct nilfs_root *root)
static inline int nilfs_valid_fs(struct the_nilfs *nilfs)
{
unsigned valid_fs;
unsigned int valid_fs;
down_read(&nilfs->ns_sem);
valid_fs = (nilfs->ns_mount_state & NILFS_VALID_FS);

11
fs/proc/task_mmu.c
View File

@ -1027,11 +1027,15 @@ static ssize_t clear_refs_write(struct file *file, const char __user *buf,
};
if (type == CLEAR_REFS_MM_HIWATER_RSS) {
if (down_write_killable(&mm->mmap_sem)) {
count = -EINTR;
goto out_mm;
}
/*
* Writing 5 to /proc/pid/clear_refs resets the peak
* resident set size to this mm's current rss value.
*/
down_write(&mm->mmap_sem);
reset_mm_hiwater_rss(mm);
up_write(&mm->mmap_sem);
goto out_mm;
@ -1043,7 +1047,10 @@ static ssize_t clear_refs_write(struct file *file, const char __user *buf,
if (!(vma->vm_flags & VM_SOFTDIRTY))
continue;
up_read(&mm->mmap_sem);
down_write(&mm->mmap_sem);
if (down_write_killable(&mm->mmap_sem)) {
count = -EINTR;
goto out_mm;
}
for (vma = mm->mmap; vma; vma = vma->vm_next) {
vma->vm_flags &= ~VM_SOFTDIRTY;
vma_set_page_prot(vma);

4
include/linux/kexec.h
View File

@ -230,8 +230,6 @@ extern void crash_kexec(struct pt_regs *);
int kexec_should_crash(struct task_struct *);
void crash_save_cpu(struct pt_regs *regs, int cpu);
void crash_save_vmcoreinfo(void);
void crash_map_reserved_pages(void);
void crash_unmap_reserved_pages(void);
void arch_crash_save_vmcoreinfo(void);
__printf(1, 2)
void vmcoreinfo_append_str(const char *fmt, ...);
@ -317,6 +315,8 @@ int __weak arch_kexec_apply_relocations_add(const Elf_Ehdr *ehdr,
Elf_Shdr *sechdrs, unsigned int relsec);
int __weak arch_kexec_apply_relocations(const Elf_Ehdr *ehdr, Elf_Shdr *sechdrs,
unsigned int relsec);
void arch_kexec_protect_crashkres(void);
void arch_kexec_unprotect_crashkres(void);
#else /* !CONFIG_KEXEC_CORE */
struct pt_regs;

4
include/linux/mm.h
View File

@ -2011,9 +2011,9 @@ static inline void mm_populate(unsigned long addr, unsigned long len) {}
#endif
/* These take the mm semaphore themselves */
extern unsigned long vm_brk(unsigned long, unsigned long);
extern unsigned long __must_check vm_brk(unsigned long, unsigned long);
extern int vm_munmap(unsigned long, size_t);
extern unsigned long vm_mmap(struct file *, unsigned long,
extern unsigned long __must_check vm_mmap(struct file *, unsigned long,
unsigned long, unsigned long,
unsigned long, unsigned long);

79
include/linux/nilfs2_fs.h
View File

@ -13,12 +13,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Koji Sato <koji@osrg.net>
* Ryusuke Konishi <ryusuke@osrg.net>
* Written by Koji Sato and Ryusuke Konishi.
*/
/*
* linux/include/linux/ext2_fs.h
@ -132,10 +127,14 @@ struct nilfs_super_root {
#define NILFS_MOUNT_ERRORS_RO 0x0020 /* Remount fs ro on errors */
#define NILFS_MOUNT_ERRORS_PANIC 0x0040 /* Panic on errors */
#define NILFS_MOUNT_BARRIER 0x1000 /* Use block barriers */
#define NILFS_MOUNT_STRICT_ORDER 0x2000 /* Apply strict in-order
semantics also for data */
#define NILFS_MOUNT_NORECOVERY 0x4000 /* Disable write access during
mount-time recovery */
#define NILFS_MOUNT_STRICT_ORDER 0x2000 /*
* Apply strict in-order
* semantics also for data
*/
#define NILFS_MOUNT_NORECOVERY 0x4000 /*
* Disable write access during
* mount-time recovery
*/
#define NILFS_MOUNT_DISCARD 0x8000 /* Issue DISCARD requests */
@ -147,16 +146,20 @@ struct nilfs_super_block {
__le16 s_minor_rev_level; /* minor revision level */
__le16 s_magic; /* Magic signature */
__le16 s_bytes; /* Bytes count of CRC calculation
for this structure. s_reserved
is excluded. */
__le16 s_bytes; /*
* Bytes count of CRC calculation
* for this structure. s_reserved
* is excluded.
*/
__le16 s_flags; /* flags */
__le32 s_crc_seed; /* Seed value of CRC calculation */
/*10*/ __le32 s_sum; /* Check sum of super block */
__le32 s_log_block_size; /* Block size represented as follows
blocksize =
1 << (s_log_block_size + 10) */
__le32 s_log_block_size; /*
* Block size represented as follows
* blocksize =
* 1 << (s_log_block_size + 10)
*/
__le64 s_nsegments; /* Number of segments in filesystem */
/*20*/ __le64 s_dev_size; /* block device size in bytes */
__le64 s_first_data_block; /* 1st seg disk block number */
@ -168,8 +171,10 @@ struct nilfs_super_block {
__le64 s_last_seq; /* seq. number of seg written last */
/*50*/ __le64 s_free_blocks_count; /* Free blocks count */
__le64 s_ctime; /* Creation time (execution time of
newfs) */
__le64 s_ctime; /*
* Creation time (execution time of
* newfs)
*/
/*60*/ __le64 s_mtime; /* Mount time */
__le64 s_wtime; /* Write time */
/*70*/ __le16 s_mnt_count; /* Mount count */
@ -193,8 +198,10 @@ struct nilfs_super_block {
/*A8*/ char s_volume_name[80]; /* volume name */
/*F8*/ __le32 s_c_interval; /* Commit interval of segment */
__le32 s_c_block_max; /* Threshold of data amount for
the segment construction */
__le32 s_c_block_max; /*
* Threshold of data amount for
* the segment construction
*/
/*100*/ __le64 s_feature_compat; /* Compatible feature set */
__le64 s_feature_compat_ro; /* Read-only compatible feature set */
__le64 s_feature_incompat; /* Incompatible feature set */
@ -247,12 +254,18 @@ struct nilfs_super_block {
#define NILFS_SB_OFFSET_BYTES 1024 /* byte offset of nilfs superblock */
#define NILFS_SEG_MIN_BLOCKS 16 /* Minimum number of blocks in
a full segment */
#define NILFS_PSEG_MIN_BLOCKS 2 /* Minimum number of blocks in
a partial segment */
#define NILFS_MIN_NRSVSEGS 8 /* Minimum number of reserved
segments */
#define NILFS_SEG_MIN_BLOCKS 16 /*
* Minimum number of blocks in
* a full segment
*/
#define NILFS_PSEG_MIN_BLOCKS 2 /*
* Minimum number of blocks in
* a partial segment
*/
#define NILFS_MIN_NRSVSEGS 8 /*
* Minimum number of reserved
* segments
*/
/*
* We call DAT, cpfile, and sufile root metadata files. Inodes of
@ -327,9 +340,9 @@ enum {
~NILFS_DIR_ROUND)
#define NILFS_MAX_REC_LEN ((1<<16)-1)
static inline unsigned nilfs_rec_len_from_disk(__le16 dlen)
static inline unsigned int nilfs_rec_len_from_disk(__le16 dlen)
{
unsigned len = le16_to_cpu(dlen);
unsigned int len = le16_to_cpu(dlen);
#if !defined(__KERNEL__) || (PAGE_SIZE >= 65536)
if (len == NILFS_MAX_REC_LEN)
@ -338,7 +351,7 @@ static inline unsigned nilfs_rec_len_from_disk(__le16 dlen)
return len;
}
static inline __le16 nilfs_rec_len_to_disk(unsigned len)
static inline __le16 nilfs_rec_len_to_disk(unsigned int len)
{
#if !defined(__KERNEL__) || (PAGE_SIZE >= 65536)
if (len == (1 << 16))
@ -518,9 +531,11 @@ struct nilfs_checkpoint {
__le64 cp_inodes_count;
__le64 cp_blocks_count;
/* Do not change the byte offset of ifile inode.
To keep the compatibility of the disk format,
additional fields should be added behind cp_ifile_inode. */
/*
* Do not change the byte offset of ifile inode.
* To keep the compatibility of the disk format,
* additional fields should be added behind cp_ifile_inode.
*/
struct nilfs_inode cp_ifile_inode;
};

9
include/linux/oom.h
View File

@ -50,24 +50,21 @@ enum oom_scan_t {
OOM_SCAN_SELECT, /* always select this thread first */
};
/* Thread is the potential origin of an oom condition; kill first on oom */
#define OOM_FLAG_ORIGIN ((__force oom_flags_t)0x1)
extern struct mutex oom_lock;
static inline void set_current_oom_origin(void)
{
current->signal->oom_flags |= OOM_FLAG_ORIGIN;
current->signal->oom_flag_origin = true;
}
static inline void clear_current_oom_origin(void)
{
current->signal->oom_flags &= ~OOM_FLAG_ORIGIN;
current->signal->oom_flag_origin = false;
}
static inline bool oom_task_origin(const struct task_struct *p)
{
return !!(p->signal->oom_flags & OOM_FLAG_ORIGIN);
return p->signal->oom_flag_origin;
}
extern void mark_oom_victim(struct task_struct *tsk);

6
include/linux/sched.h
View File

@ -794,7 +794,11 @@ struct signal_struct {
struct tty_audit_buf *tty_audit_buf;
#endif
oom_flags_t oom_flags;
/*
* Thread is the potential origin of an oom condition; kill first on
* oom
*/
bool oom_flag_origin;
short oom_score_adj; /* OOM kill score adjustment */
short oom_score_adj_min; /* OOM kill score adjustment min value.
* Only settable by CAP_SYS_RESOURCE. */

16
include/linux/signal.h
View File

@ -400,7 +400,9 @@ int unhandled_signal(struct task_struct *tsk, int sig);
#else
#define rt_sigmask(sig) sigmask(sig)
#endif
#define siginmask(sig, mask) (rt_sigmask(sig) & (mask))
#define siginmask(sig, mask) \
((sig) < SIGRTMIN && (rt_sigmask(sig) & (mask)))
#define SIG_KERNEL_ONLY_MASK (\
rt_sigmask(SIGKILL) | rt_sigmask(SIGSTOP))
@ -421,14 +423,10 @@ int unhandled_signal(struct task_struct *tsk, int sig);
rt_sigmask(SIGCONT) | rt_sigmask(SIGCHLD) | \
rt_sigmask(SIGWINCH) | rt_sigmask(SIGURG) )
#define sig_kernel_only(sig) \
(((sig) < SIGRTMIN) && siginmask(sig, SIG_KERNEL_ONLY_MASK))
#define sig_kernel_coredump(sig) \
(((sig) < SIGRTMIN) && siginmask(sig, SIG_KERNEL_COREDUMP_MASK))
#define sig_kernel_ignore(sig) \
(((sig) < SIGRTMIN) && siginmask(sig, SIG_KERNEL_IGNORE_MASK))
#define sig_kernel_stop(sig) \
(((sig) < SIGRTMIN) && siginmask(sig, SIG_KERNEL_STOP_MASK))
#define sig_kernel_only(sig) siginmask(sig, SIG_KERNEL_ONLY_MASK)
#define sig_kernel_coredump(sig) siginmask(sig, SIG_KERNEL_COREDUMP_MASK)
#define sig_kernel_ignore(sig) siginmask(sig, SIG_KERNEL_IGNORE_MASK)
#define sig_kernel_stop(sig) siginmask(sig, SIG_KERNEL_STOP_MASK)
#define sig_user_defined(t, signr) \
(((t)->sighand->action[(signr)-1].sa.sa_handler != SIG_DFL) && \

1
include/linux/types.h
View File

@ -156,7 +156,6 @@ typedef u32 dma_addr_t;
typedef unsigned __bitwise__ gfp_t;
typedef unsigned __bitwise__ fmode_t;
typedef unsigned __bitwise__ oom_flags_t;
#ifdef CONFIG_PHYS_ADDR_T_64BIT
typedef u64 phys_addr_t;

9
ipc/shm.c
View File

@ -1200,7 +1200,11 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr,
if (err)
goto out_fput;
down_write(&current->mm->mmap_sem);
if (down_write_killable(&current->mm->mmap_sem)) {
err = -EINTR;
goto out_fput;
}
if (addr && !(shmflg & SHM_REMAP)) {
err = -EINVAL;
if (addr + size < addr)
@ -1271,7 +1275,8 @@ SYSCALL_DEFINE1(shmdt, char __user *, shmaddr)
if (addr & ~PAGE_MASK)
return retval;
down_write(&mm->mmap_sem);
if (down_write_killable(&mm->mmap_sem))
return -EINTR;
/*
* This function tries to be smart and unmap shm segments that

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