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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-18 11:19:03 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-18 11:19:03 -0400
commit4d7b4ac22fbec1a03206c6cde353f2fd6942f828 (patch)
tree2d96a9e9c28cf6fa628a278decc00ad55a8b043b /mm
parent3aaf51ace5975050ab43c7d4d7e439e0ae7d13d7 (diff)
parent94f3ca95787ada3d64339a4ecb2754236ab563f6 (diff)
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (311 commits) perf tools: Add mode to build without newt support perf symbols: symbol inconsistency message should be done only at verbose=1 perf tui: Add explicit -lslang option perf options: Type check all the remaining OPT_ variants perf options: Type check OPT_BOOLEAN and fix the offenders perf options: Check v type in OPT_U?INTEGER perf options: Introduce OPT_UINTEGER perf tui: Add workaround for slang < 2.1.4 perf record: Fix bug mismatch with -c option definition perf options: Introduce OPT_U64 perf tui: Add help window to show key associations perf tui: Make <- exit menus too perf newt: Add single key shortcuts for zoom into DSO and threads perf newt: Exit browser unconditionally when CTRL+C, q or Q is pressed perf newt: Fix the 'A'/'a' shortcut for annotate perf newt: Make <- exit the ui_browser x86, perf: P4 PMU - fix counters management logic perf newt: Make <- zoom out filters perf report: Report number of events, not samples perf hist: Clarify events_stats fields usage ... Fix up trivial conflicts in kernel/fork.c and tools/perf/builtin-record.c
Diffstat (limited to 'mm')
-rw-r--r--mm/mlock.c41
1 files changed, 0 insertions, 41 deletions
diff --git a/mm/mlock.c b/mm/mlock.c
index 8f4e2dfceec1..3f82720e0515 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -607,44 +607,3 @@ void user_shm_unlock(size_t size, struct user_struct *user)
607 spin_unlock(&shmlock_user_lock); 607 spin_unlock(&shmlock_user_lock);
608 free_uid(user); 608 free_uid(user);
609} 609}
610
611int account_locked_memory(struct mm_struct *mm, struct rlimit *rlim,
612 size_t size)
613{
614 unsigned long lim, vm, pgsz;
615 int error = -ENOMEM;
616
617 pgsz = PAGE_ALIGN(size) >> PAGE_SHIFT;
618
619 down_write(&mm->mmap_sem);
620
621 lim = ACCESS_ONCE(rlim[RLIMIT_AS].rlim_cur) >> PAGE_SHIFT;
622 vm = mm->total_vm + pgsz;
623 if (lim < vm)
624 goto out;
625
626 lim = ACCESS_ONCE(rlim[RLIMIT_MEMLOCK].rlim_cur) >> PAGE_SHIFT;
627 vm = mm->locked_vm + pgsz;
628 if (lim < vm)
629 goto out;
630
631 mm->total_vm += pgsz;
632 mm->locked_vm += pgsz;
633
634 error = 0;
635 out:
636 up_write(&mm->mmap_sem);
637 return error;
638}
639
640void refund_locked_memory(struct mm_struct *mm, size_t size)
641{
642 unsigned long pgsz = PAGE_ALIGN(size) >> PAGE_SHIFT;
643
644 down_write(&mm->mmap_sem);
645
646 mm->total_vm -= pgsz;
647 mm->locked_vm -= pgsz;
648
649 up_write(&mm->mmap_sem);
650}