diff options
| author | Ingo Molnar <mingo@elte.hu> | 2006-07-03 09:25:08 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-07-04 00:27:07 +0200 |
| commit | f20dc5f7c1adf1c4b68b7672d6f2002cb824e636 (patch) | |
| tree | ffd31717399ff783da29444f3446a63285f22b14 /mm | |
| parent | [PATCH] lockdep: annotate waitqueues (diff) | |
| download | linux-f20dc5f7c1adf1c4b68b7672d6f2002cb824e636.tar.xz linux-f20dc5f7c1adf1c4b68b7672d6f2002cb824e636.zip | |
[PATCH] lockdep: annotate mm
Teach special (recursive) locking code to the lock validator. Has no effect
on non-lockdep kernels.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/memory.c | 2 | ||||
| -rw-r--r-- | mm/mremap.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/mm/memory.c b/mm/memory.c index 7e2a4b1580e3..c1e14c9e67e4 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -503,7 +503,7 @@ again: return -ENOMEM; src_pte = pte_offset_map_nested(src_pmd, addr); src_ptl = pte_lockptr(src_mm, src_pmd); - spin_lock(src_ptl); + spin_lock_nested(src_ptl, SINGLE_DEPTH_NESTING); do { /* diff --git a/mm/mremap.c b/mm/mremap.c index 1903bdf65e42..7c15cf3373ad 100644 --- a/mm/mremap.c +++ b/mm/mremap.c @@ -97,7 +97,7 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd, new_pte = pte_offset_map_nested(new_pmd, new_addr); new_ptl = pte_lockptr(mm, new_pmd); if (new_ptl != old_ptl) - spin_lock(new_ptl); + spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING); for (; old_addr < old_end; old_pte++, old_addr += PAGE_SIZE, new_pte++, new_addr += PAGE_SIZE) { |