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| author | Ingo Molnar <mingo@elte.hu> | 2011-04-14 10:50:37 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-04-14 10:51:07 +0400 |
| commit | a4c98f8bbeafee12c979c90743f6fda94f7515c7 (patch) | |
| tree | 3dda24b8a2ec42ab7b42845cb68c8b6e1b0d501f /mm/mlock.c | |
| parent | f4ad9bd208c98f32a6f9136618e0b8bebe3fb370 (diff) | |
| parent | 85f2e689a5c8fb6ed8fdbee00109e7f6e5fefcb6 (diff) | |
| download | linux-a4c98f8bbeafee12c979c90743f6fda94f7515c7.tar.xz | |
Merge branch 'linus' into sched/locking
Merge reason: Pick up this upstream commit:
6631e635c65d: block: don't flush plugged IO on forced preemtion scheduling
As it modifies the scheduler and we'll queue up dependent patches.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'mm/mlock.c')
| -rw-r--r-- | mm/mlock.c | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/mm/mlock.c b/mm/mlock.c index 2689a08c79af..6b55e3efe0df 100644 --- a/mm/mlock.c +++ b/mm/mlock.c @@ -135,13 +135,6 @@ void munlock_vma_page(struct page *page) } } -static inline int stack_guard_page(struct vm_area_struct *vma, unsigned long addr) -{ - return (vma->vm_flags & VM_GROWSDOWN) && - (vma->vm_start == addr) && - !vma_stack_continue(vma->vm_prev, addr); -} - /** * __mlock_vma_pages_range() - mlock a range of pages in the vma. * @vma: target vma @@ -188,12 +181,6 @@ static long __mlock_vma_pages_range(struct vm_area_struct *vma, if (vma->vm_flags & VM_LOCKED) gup_flags |= FOLL_MLOCK; - /* We don't try to access the guard page of a stack vma */ - if (stack_guard_page(vma, start)) { - addr += PAGE_SIZE; - nr_pages--; - } - return __get_user_pages(current, mm, addr, nr_pages, gup_flags, NULL, NULL, nonblocking); } |