diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2011-06-28 01:18:09 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-06-28 03:00:13 +0200 |
| commit | 9b679320a5fbf46454011e5c62e0b8991b0956d1 (patch) | |
| tree | 49ea7be5e8bb669ef99533a18c73555e2882efc5 /mm/rmap.c | |
| parent | drivers/misc/lkdtm.c: fix race when crashpoint is hit multiple times before c... (diff) | |
| download | linux-9b679320a5fbf46454011e5c62e0b8991b0956d1.tar.xz linux-9b679320a5fbf46454011e5c62e0b8991b0956d1.zip | |
mm/memory-failure.c: fix spinlock vs mutex order
We cannot take a mutex while holding a spinlock, so flip the order and
fix the locking documentation.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/rmap.c')
| -rw-r--r-- | mm/rmap.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/mm/rmap.c b/mm/rmap.c index 27dfd3b82b0f..23295f65ae43 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -38,9 +38,8 @@ * in arch-dependent flush_dcache_mmap_lock, * within inode_wb_list_lock in __sync_single_inode) * - * (code doesn't rely on that order so it could be switched around) - * ->tasklist_lock - * anon_vma->mutex (memory_failure, collect_procs_anon) + * anon_vma->mutex,mapping->i_mutex (memory_failure, collect_procs_anon) + * ->tasklist_lock * pte map lock */ |