diff options
| author | Ingo Molnar <mingo@elte.hu> | 2009-02-13 09:34:07 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-02-13 09:34:07 +0100 |
| commit | e9c4ffb11f0b19005b5b9dc8481687a3637e5887 (patch) | |
| tree | 7007f2ff846b9b057c5cd7c25e8b82e49f9b4b63 /fs/btrfs | |
| parent | 4bcf349a0f90d1e69eb35c6df0fa285c886c1cd6 (diff) | |
| parent | 071a0bc2ceace31266836801510879407a3701fa (diff) | |
Merge branch 'linus' into perfcounters/core
Conflicts:
arch/x86/kernel/acpi/boot.c
Diffstat (limited to 'fs/btrfs')
| -rw-r--r-- | fs/btrfs/ctree.c | 3 | ||||
| -rw-r--r-- | fs/btrfs/locking.c | 22 | ||||
| -rw-r--r-- | fs/btrfs/locking.h | 2 |
3 files changed, 1 insertions, 26 deletions
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index 551177c0011..35443cc4b9a 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -1530,8 +1530,7 @@ again: * for higher level blocks, try not to allocate blocks * with the block and the parent locks held. */ - if (level > 0 && !prealloc_block.objectid && - btrfs_path_lock_waiting(p, level)) { + if (level > 0 && !prealloc_block.objectid) { u32 size = b->len; u64 hint = b->start; diff --git a/fs/btrfs/locking.c b/fs/btrfs/locking.c index 68fd9ccf180..9ebe9385129 100644 --- a/fs/btrfs/locking.c +++ b/fs/btrfs/locking.c @@ -236,25 +236,3 @@ int btrfs_tree_locked(struct extent_buffer *eb) return test_bit(EXTENT_BUFFER_BLOCKING, &eb->bflags) || spin_is_locked(&eb->lock); } - -/* - * btrfs_search_slot uses this to decide if it should drop its locks - * before doing something expensive like allocating free blocks for cow. - */ -int btrfs_path_lock_waiting(struct btrfs_path *path, int level) -{ - int i; - struct extent_buffer *eb; - - for (i = level; i <= level + 1 && i < BTRFS_MAX_LEVEL; i++) { - eb = path->nodes[i]; - if (!eb) - break; - smp_mb(); - if (spin_is_contended(&eb->lock) || - waitqueue_active(&eb->lock_wq)) - return 1; - } - return 0; -} - diff --git a/fs/btrfs/locking.h b/fs/btrfs/locking.h index d92e707f587..6bb0afbff92 100644 --- a/fs/btrfs/locking.h +++ b/fs/btrfs/locking.h @@ -26,8 +26,6 @@ int btrfs_tree_locked(struct extent_buffer *eb); int btrfs_try_tree_lock(struct extent_buffer *eb); int btrfs_try_spin_lock(struct extent_buffer *eb); -int btrfs_path_lock_waiting(struct btrfs_path *path, int level); - void btrfs_set_lock_blocking(struct extent_buffer *eb); void btrfs_clear_lock_blocking(struct extent_buffer *eb); #endif |