Bernd Schmidt eb8cdec4a9 nommu: add support for Memory Protection Units (MPU) ...

Some architectures (like the Blackfin arch) implement some of the
"simpler" features that one would expect out of a MMU such as memory
protection.

In our case, we actually get read/write/exec protection down to the page
boundary so processes can't stomp on each other let alone the kernel.

There is a performance decrease (which depends greatly on the workload)
however as the hardware/software interaction was not optimized at design
time.

Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: David Howells <dhowells@redhat.com>
Acked-by: Greg Ungerer <gerg@snapgear.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2009-09-22 07:17:43 -07:00

..

gcov

powerpc: Enable GCOV

2009-08-20 10:29:28 +10:00

irq

Merge branch 'irq-threaded-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-09-11 13:21:31 -07:00

power

oom: move oom_killer_enable()/oom_killer_disable to where they belong

2009-09-22 07:17:38 -07:00

time

Merge branch 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-09-18 09:15:24 -07:00

trace

Merge branch 'perfcounters-rename-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-09-21 09:15:07 -07:00

.gitignore

…

acct.c

bsdacct: switch credentials for writing to the accounting file

2009-08-24 11:33:40 +10:00

async.c

async: Fix lack of boot-time console due to insufficient synchronization

2009-06-08 12:31:53 -07:00

audit_tree.c

Fix rule eviction order for AUDIT_DIR

2009-06-24 00:02:38 -04:00

audit_watch.c

Audit: clean up all op= output to include string quoting

2009-06-24 00:00:52 -04:00

audit.c

Fix rule eviction order for AUDIT_DIR

2009-06-24 00:02:38 -04:00

audit.h

Fix rule eviction order for AUDIT_DIR

2009-06-24 00:02:38 -04:00

auditfilter.c

Audit: clean up all op= output to include string quoting

2009-06-24 00:00:52 -04:00

auditsc.c

Fix rule eviction order for AUDIT_DIR

2009-06-24 00:02:38 -04:00

backtracetest.c

…

bounds.c

…

capability.c

…

cgroup_debug.c

debug cgroup: remove unneeded cgroup_lock

2009-04-02 19:04:54 -07:00

cgroup_freezer.c

…

cgroup.c

const: mark remaining inode_operations as const

2009-09-22 07:17:24 -07:00

compat.c

signals: implement sys_rt_tgsigqueueinfo

2009-04-30 19:24:24 +02:00

configs.c

…

cpu.c

Merge branch 'x86-pat-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-09-15 09:19:38 -07:00

cpuset.c

cpuset,mm: update tasks' mems_allowed in time

2009-06-16 19:47:31 -07:00

cred-internals.h

…

cred.c

CRED: Allow put_cred() to cope with a NULL groups list

2009-09-15 09:10:57 +10:00

delayacct.c

headers: taskstats_kern.h trim

2009-09-18 09:48:52 -07:00

dma.c

…

exec_domain.c

Get rid of indirect include of fs_struct.h

2009-03-31 23:00:27 -04:00

exit.c

perf: Do the big rename: Performance Counters -> Performance Events

2009-09-21 14:28:04 +02:00

extable.c

Merge branch 'tracing-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-04-05 11:04:19 -07:00

fork.c

oom: move oom_adj value from task_struct to signal_struct

2009-09-22 07:17:39 -07:00

freezer.c

sched: fix nr_uninterruptible accounting of frozen tasks really

2009-07-18 14:19:53 +02:00

futex_compat.c

futex: Fix compat_futex to be same as futex for REQUEUE_PI

2009-08-10 15:41:12 +02:00

futex.c

Merge branch 'core-futexes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-09-11 13:16:22 -07:00

groups.c

groups: move code to kernel/groups.c

2009-06-16 19:47:48 -07:00

hrtimer.c

Merge branch 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-09-18 09:15:24 -07:00

hung_task.c

softlockup: ensure the task has been switched out once

2009-02-11 11:04:16 +01:00

itimer.c

timers: split process wide cpu clocks/timers

2009-02-05 13:04:33 +01:00

kallsyms.c

kernel/kallsyms.c: replace deprecated __initcall with device_initcall and fix whitespace

2009-06-09 22:37:52 +02:00

Kconfig.freezer

…

Kconfig.hz

…

Kconfig.preempt

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kexec.c

kexec: fix omitting offset in extended crashkernel syntax

2009-07-29 19:10:34 -07:00

kfifo.c

kfifo: Use "const" definitions

2009-09-19 13:13:17 -07:00

kgdb.c

sysrq, intel_fb: fix sysrq g collision

2009-05-15 07:56:24 -05:00

kmod.c

Merge branch 'tracing-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-09-11 13:24:03 -07:00

kprobes.c

Merge branch 'linus' into tracing/core

2009-08-11 14:19:09 +02:00

ksysfs.c

…

kthread.c

sched: Keep kthreads at default priority

2009-09-09 17:30:06 +02:00

latencytop.c

sched, latencytop: incorporate review feedback from Andrew Morton

2009-02-11 10:18:04 +01:00

lockdep_internals.h

lockdep: BFS cleanup

2009-07-24 10:53:29 +02:00

lockdep_proc.c

Merge commit 'v2.6.31-rc8' into core/locking

2009-08-31 18:05:25 +02:00

lockdep_states.h

lockdep: move state bit definitions around

2009-02-14 23:27:59 +01:00

lockdep.c

lockdep: Remove recursion stattistics

2009-08-29 13:22:36 +02:00

Makefile

Merge branch 'perfcounters-rename-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-09-21 09:15:07 -07:00

module.c

nommu: add support for Memory Protection Units (MPU)

2009-09-22 07:17:43 -07:00

mutex-debug.c

…

mutex-debug.h

…

mutex.c

Merge branch 'linus' into perfcounters/core

2009-06-11 17:55:42 +02:00

mutex.h

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notifier.c

…

ns_cgroup.c

cgroups: relax ns_can_attach checks to allow attaching to grandchild cgroups

2009-04-02 19:04:53 -07:00

nsproxy.c

nsproxy: extract create_nsproxy()

2009-06-18 13:03:56 -07:00

panic.c

trace: stop tracer in oops_enter()

2009-07-24 15:30:45 -04:00

params.c

module_param: allow 'bool' module_params to be bool, not just int.

2009-06-12 21:46:58 +09:30

perf_event.c

perf: Tidy up after the big rename

2009-09-21 14:34:11 +02:00

pid_namespace.c

pidns: rewrite copy_pid_ns()

2009-06-18 13:03:55 -07:00

pid.c

mm: also use alloc_large_system_hash() for the PID hash table

2009-09-22 07:17:38 -07:00

pm_qos_params.c

…

posix-cpu-timers.c

posix_cpu_timers_exit_group(): Do not use thread_group_cputimer()

2009-08-08 18:30:25 +02:00

posix-timers.c

time: Introduce CLOCK_REALTIME_COARSE

2009-08-21 21:43:46 +02:00

printk.c

cleanup console_print()

2009-09-14 17:41:42 -07:00

profile.c

kernel/profile.c: Switch /proc/irq/prof_cpu_mask to seq_file

2009-09-20 20:15:40 +02:00

ptrace.c

Merge branch 'master' into next

2009-07-14 00:30:40 +10:00

rcupdate.c

rcu: Fix whitespace inconsistencies

2009-09-19 08:53:22 +02:00

rcutorture.c

rcu: Fix whitespace inconsistencies

2009-09-19 08:53:22 +02:00

rcutree_plugin.h

rcu: Fix whitespace inconsistencies

2009-09-19 08:53:22 +02:00

rcutree_trace.c

rcu: Fix whitespace inconsistencies

2009-09-19 08:53:22 +02:00

rcutree.c

rcu: Fix whitespace inconsistencies

2009-09-19 08:53:22 +02:00

rcutree.h

rcu: Fix whitespace inconsistencies

2009-09-19 08:53:22 +02:00

relay.c

Merge branch 'tracing-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-04-05 11:04:19 -07:00

res_counter.c

memcg: add interface to reset limits

2009-06-18 13:03:48 -07:00

resource.c

kernel/resource.c: fix sign extension in reserve_setup()

2009-06-30 18:56:00 -07:00

rtmutex_common.h

rt_mutex: add proxy lock routines

2009-04-06 11:14:02 +02:00

rtmutex-debug.c

…

rtmutex-debug.h

…

rtmutex-tester.c

…

rtmutex.c

rtmutex: Avoid deadlock in rt_mutex_start_proxy_lock()

2009-08-06 05:50:21 +02:00

rtmutex.h

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rwsem.c

…

sched_clock.c

sched_clock: Make it NMI safe

2009-09-18 20:47:30 +02:00

sched_cpupri.c

sched: Add new prio to cpupri before removing old prio

2009-08-02 14:26:09 +02:00

sched_cpupri.h

cpumask: remove cpumask_t from core

2009-03-30 22:05:17 +10:30

sched_debug.c

sched: Add new wakeup preemption mode: WAKEUP_RUNNING

2009-09-17 10:17:25 +02:00

sched_fair.c

Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-09-21 09:06:17 -07:00

sched_features.h

sched: Add new wakeup preemption mode: WAKEUP_RUNNING

2009-09-17 10:17:25 +02:00

sched_idletask.c

sched: Simplify sys_sched_rr_get_interval() system call

2009-09-21 09:53:55 +02:00

sched_rt.c

sched: Simplify sys_sched_rr_get_interval() system call

2009-09-21 09:53:55 +02:00

sched_stats.h

sched: remove unused fields from struct rq

2009-03-24 23:16:51 +01:00

sched.c

Merge branch 'perfcounters-rename-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-09-21 09:15:07 -07:00

seccomp.c

x86-64: seccomp: fix 32/64 syscall hole

2009-03-02 15:41:30 -08:00

semaphore.c

…

signal.c

do_sigaltstack: small cleanups

2009-08-01 11:18:56 -07:00

slow-work.c

slow-work: use round_jiffies() for thread pool's cull and OOM timers

2009-06-16 19:47:49 -07:00

smp.c

Merge branch 'x86/urgent' into x86/pat

2009-08-26 17:24:28 -07:00

softirq.c

softirq: add BLOCK_IOPOLL to softirq_to_name

2009-09-17 15:53:44 -04:00

softlockup.c

…

spinlock.c

locking: Allow arch-inlined spinlocks

2009-08-31 18:08:50 +02:00

srcu.c

…

stacktrace.c

…

stop_machine.c

cpumask: remove cpumask_t from core

2009-03-30 22:05:17 +10:30

sys_ni.c

perf: Do the big rename: Performance Counters -> Performance Events

2009-09-21 14:28:04 +02:00

sys.c

perf: Do the big rename: Performance Counters -> Performance Events

2009-09-21 14:28:04 +02:00

sysctl_check.c

net: add ARP notify option for devices

2009-02-01 01:04:33 -08:00

sysctl.c

perf: Do the big rename: Performance Counters -> Performance Events

2009-09-21 14:28:04 +02:00

taskstats.c

genetlink: make netns aware

2009-07-12 14:03:27 -07:00

test_kprobes.c

…

time.c

time: Prevent 32 bit overflow with set_normalized_timespec()

2009-09-15 10:17:30 +02:00

timeconst.pl

…

timer.c

perf: Do the big rename: Performance Counters -> Performance Events

2009-09-21 14:28:04 +02:00

tracepoint.c

tracing: Don't trace kernel thread syscalls

2009-08-26 21:29:52 +02:00

tsacct.c

Fix fixpoint divide exception in acct_update_integrals

2009-03-09 08:13:35 -07:00

uid16.c

…

up.c

…

user_namespace.c

Fix recursive lock in free_uid()/free_user_ns()

2009-02-27 16:26:21 -08:00

user.c

sched: delayed cleanup of user_struct

2009-06-15 21:30:23 -07:00

utsname_sysctl.c

proc_sysctl: use CONFIG_PROC_SYSCTL around ipc and utsname proc_handlers

2009-04-02 19:05:01 -07:00

utsname.c

utsns: extract creeate_uts_ns()

2009-06-18 13:03:55 -07:00

wait.c

locking, sched: Give waitqueue spinlocks their own lockdep classes

2009-08-10 14:43:09 +02:00

workqueue.c

Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-09-11 13:23:18 -07:00