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author | Al Viro <viro@zeniv.linux.org.uk> | 2014-12-09 01:39:29 (GMT) |
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committer | Al Viro <viro@zeniv.linux.org.uk> | 2014-12-09 01:39:29 (GMT) |
commit | ba00410b8131b23edfb0e09f8b6dd26c8eb621fb (patch) | |
tree | c08504e4d2fa51ac91cef544f336d0169806c49f /fs/btrfs/ctree.c | |
parent | 8ce74dd6057832618957fc2cbd38fa959c3a0a6c (diff) | |
parent | aa583096d9767892983332e7c1a984bd17e3cd39 (diff) | |
download | linux-ba00410b8131b23edfb0e09f8b6dd26c8eb621fb.tar.xz |
Merge branch 'iov_iter' into for-next
Diffstat (limited to 'fs/btrfs/ctree.c')
-rw-r--r-- | fs/btrfs/ctree.c | 14 |
1 files changed, 2 insertions, 12 deletions
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index 19bc616..150822e 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -80,13 +80,6 @@ noinline void btrfs_clear_path_blocking(struct btrfs_path *p, { int i; -#ifdef CONFIG_DEBUG_LOCK_ALLOC - /* lockdep really cares that we take all of these spinlocks - * in the right order. If any of the locks in the path are not - * currently blocking, it is going to complain. So, make really - * really sure by forcing the path to blocking before we clear - * the path blocking. - */ if (held) { btrfs_set_lock_blocking_rw(held, held_rw); if (held_rw == BTRFS_WRITE_LOCK) @@ -95,7 +88,6 @@ noinline void btrfs_clear_path_blocking(struct btrfs_path *p, held_rw = BTRFS_READ_LOCK_BLOCKING; } btrfs_set_path_blocking(p); -#endif for (i = BTRFS_MAX_LEVEL - 1; i >= 0; i--) { if (p->nodes[i] && p->locks[i]) { @@ -107,10 +99,8 @@ noinline void btrfs_clear_path_blocking(struct btrfs_path *p, } } -#ifdef CONFIG_DEBUG_LOCK_ALLOC if (held) btrfs_clear_lock_blocking_rw(held, held_rw); -#endif } /* this also releases the path */ @@ -2893,7 +2883,7 @@ cow_done: } p->locks[level] = BTRFS_WRITE_LOCK; } else { - err = btrfs_try_tree_read_lock(b); + err = btrfs_tree_read_lock_atomic(b); if (!err) { btrfs_set_path_blocking(p); btrfs_tree_read_lock(b); @@ -3025,7 +3015,7 @@ again: } level = btrfs_header_level(b); - err = btrfs_try_tree_read_lock(b); + err = btrfs_tree_read_lock_atomic(b); if (!err) { btrfs_set_path_blocking(p); btrfs_tree_read_lock(b); |