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authorDavid Sterba <dsterba@suse.cz>2011-05-05 12:44:41 +0200
committerDavid Sterba <dsterba@suse.cz>2011-05-06 12:34:03 +0200
commitf2a97a9dbd86eb1ef956bdf20e05c507b32beb96 (patch)
tree756c2db8fee9c02df0e3217ea208a82b5f1d5e78 /fs/btrfs/locking.c
parent621496f4fd56195b7b273521f467c2945165481f (diff)
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.c25
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)
{
/*