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| author | David Sterba <dsterba@suse.cz> | 2011-05-05 14:44:41 +0400 |
|---|---|---|
| committer | David Sterba <dsterba@suse.cz> | 2011-05-06 14:34:03 +0400 |
| commit | f2a97a9dbd86eb1ef956bdf20e05c507b32beb96 (patch) | |
| tree | 756c2db8fee9c02df0e3217ea208a82b5f1d5e78 /fs/btrfs/locking.c | |
| parent | 621496f4fd56195b7b273521f467c2945165481f (diff) | |
| download | linux-f2a97a9dbd86eb1ef956bdf20e05c507b32beb96.tar.xz | |
btrfs: remove all unused functions
Remove static and global declarations and/or definitions. Reduces size
of btrfs.ko by ~3.4kB.
text data bss dec hex filename
402081 7464 200 409745 64091 btrfs.ko.base
398620 7144 200 405964 631cc btrfs.ko.remove-all
Signed-off-by: David Sterba <dsterba@suse.cz>
Diffstat (limited to 'fs/btrfs/locking.c')
| -rw-r--r-- | fs/btrfs/locking.c | 25 |
1 files changed, 0 insertions, 25 deletions
diff --git a/fs/btrfs/locking.c b/fs/btrfs/locking.c index 6151f2ea38bb..66fa43dc3f0f 100644 --- a/fs/btrfs/locking.c +++ b/fs/btrfs/locking.c @@ -185,31 +185,6 @@ sleep: return 0; } -/* - * Very quick trylock, this does not spin or schedule. It returns - * 1 with the spinlock held if it was able to take the lock, or it - * returns zero if it was unable to take the lock. - * - * After this call, scheduling is not safe without first calling - * btrfs_set_lock_blocking() - */ -int btrfs_try_tree_lock(struct extent_buffer *eb) -{ - if (spin_trylock(&eb->lock)) { - if (test_bit(EXTENT_BUFFER_BLOCKING, &eb->bflags)) { - /* - * we've got the spinlock, but the real owner is - * blocking. Drop the spinlock and return failure - */ - spin_unlock(&eb->lock); - return 0; - } - return 1; - } - /* someone else has the spinlock giveup */ - return 0; -} - int btrfs_tree_unlock(struct extent_buffer *eb) { /* |