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btrfs: remove all unused functions

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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>
This commit is contained in:
David Sterba
2011-05-05 12:44:41 +02:00
parent 621496f4fd
commit f2a97a9dbd
19 changed files with 1 additions and 817 deletions
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25
fs/btrfs/locking.c
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@@ -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)
{
/*