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314e51b985
linux/arch/unicore32/kernel
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Konstantin Khlebnikov 314e51b985 mm: kill vma flag VM_RESERVED and mm->reserved_vm counter 
A long time ago, in v2.4, VM_RESERVED kept swapout process off VMA,
currently it lost original meaning but still has some effects:

 | effect                 | alternative flags
-+------------------------+---------------------------------------------
1| account as reserved_vm | VM_IO
2| skip in core dump      | VM_IO, VM_DONTDUMP
3| do not merge or expand | VM_IO, VM_DONTEXPAND, VM_HUGETLB, VM_PFNMAP
4| do not mlock           | VM_IO, VM_DONTEXPAND, VM_HUGETLB, VM_PFNMAP

This patch removes reserved_vm counter from mm_struct.  Seems like nobody
cares about it, it does not exported into userspace directly, it only
reduces total_vm showed in proc.

Thus VM_RESERVED can be replaced with VM_IO or pair VM_DONTEXPAND | VM_DONTDUMP.

remap_pfn_range() and io_remap_pfn_range() set VM_IO|VM_DONTEXPAND|VM_DONTDUMP.
remap_vmalloc_range() set VM_DONTEXPAND | VM_DONTDUMP.

[akpm@linux-foundation.org: drivers/vfio/pci/vfio_pci.c fixup]
Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Carsten Otte <cotte@de.ibm.com>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Eric Paris <eparis@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Morris <james.l.morris@oracle.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Kentaro Takeda <takedakn@nttdata.co.jp>
Cc: Matt Helsley <matthltc@us.ibm.com>
Cc: Nick Piggin <npiggin@kernel.dk>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Venkatesh Pallipadi <venki@google.com>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-09 16:22:19 +09:00
..
asm-offsets.c unicore32 core architecture: generic elf and ksyms stuff 2011-03-17 09:19:05 +08:00
clock.c unicore32 io: redefine __REG(x) and re-use readl/writel funcs 2011-03-17 09:19:19 +08:00
cpu-ucv2.c unicore32 additional architecture files: pm related files 2011-03-17 09:19:11 +08:00
debug-macro.S unicore32 additional architecture files: low-level lib: ocd debug 2011-03-17 09:19:12 +08:00
debug.S unicore32 additional architecture files: low-level lib: ocd debug 2011-03-17 09:19:12 +08:00
dma.c Disintegrate asm/system.h for Unicore32 [based on ver #3, changed by gxt] 2012-03-28 18:30:03 +01:00
early_printk.c unicore32 additional architecture files: low-level lib: ocd debug 2011-03-17 09:19:12 +08:00
elf.c unicore32 core architecture: generic elf and ksyms stuff 2011-03-17 09:19:05 +08:00
entry.S unicore32: modify io_p2v and io_v2p macros, and adjust PKUNITY_mmio_BASEs 2011-03-17 09:19:21 +08:00
fpu-ucf64.c unicore32 additional architecture files: float point handling 2011-03-17 09:19:11 +08:00
gpio.c unicore32 io: redefine __REG(x) and re-use readl/writel funcs 2011-03-17 09:19:19 +08:00
head.S Disintegrate asm/system.h for Unicore32 [based on ver #3, changed by gxt] 2012-03-28 18:30:03 +01:00
hibernate_asm.S unicore32 additional architecture files: pm related files 2011-03-17 09:19:11 +08:00
hibernate.c Disintegrate asm/system.h for Unicore32 [based on ver #3, changed by gxt] 2012-03-28 18:30:03 +01:00
irq.c Disintegrate asm/system.h for Unicore32 [based on ver #3, changed by gxt] 2012-03-28 18:30:03 +01:00
ksyms.c Disintegrate asm/system.h for Unicore32 [based on ver #3, changed by gxt] 2012-03-28 18:30:03 +01:00
ksyms.h unicore32 core architecture: generic elf and ksyms stuff 2011-03-17 09:19:05 +08:00
Makefile unicore32: Use generic init_task 2012-05-05 13:00:26 +02:00
module.c modules: make arch's use default loader hooks 2011-07-24 22:06:04 +09:30
pci.c PCI: Provide a default pcibios_update_irq() 2012-09-18 17:28:21 -06:00
pm.c unicore32 additional architecture files: pm related files 2011-03-17 09:19:11 +08:00
process.c mm: kill vma flag VM_RESERVED and mm->reserved_vm counter 2012-10-09 16:22:19 +09:00
ptrace.c unicore32 additional architecture files: ptrace handling 2011-03-17 09:19:12 +08:00
puv3-core.c driver-core: remove sysdev.h usage. 2011-12-21 16:26:03 -08:00
puv3-nb0916.c unicore32: Remove IRQF_DISABLED 2012-01-10 10:29:41 +08:00
pwm.c unicore32 core architecture: timer and time handling 2011-03-17 09:19:10 +08:00
setup.c unicore32: standardize /proc/iomem "Kernel code" name 2012-01-10 10:29:40 +08:00
setup.h Disintegrate asm/system.h for Unicore32 [based on ver #3, changed by gxt] 2012-03-28 18:30:03 +01:00
signal.c new helper: signal_delivered() 2012-06-01 12:58:52 -04:00
sleep.S unicore32: modify io_p2v and io_v2p macros, and adjust PKUNITY_mmio_BASEs 2011-03-17 09:19:21 +08:00
stacktrace.c unicore32 core architecture: process/thread related codes 2011-03-17 09:19:07 +08:00
sys.c unicore32 core architecture: processor and system headers 2011-03-17 09:19:06 +08:00
time.c unicore32: Remove IRQF_DISABLED 2012-01-10 10:29:41 +08:00
traps.c Disintegrate asm/system.h for Unicore32 [based on ver #3, changed by gxt] 2012-03-28 18:30:03 +01:00
vmlinux.lds.S unicore32: change PERCPU to PERCPU_SECTION 2011-06-09 16:27:46 +08:00