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btrfs: remove unused btrfs_try_tree_write_lock()

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btrfs_try_tree_write_lock() has been unused since commit
50b21d7a06 ("btrfs: submit a writeback bio per extent_buffer").
Remove it as we don't need it anymore.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Dr. David Alan Gilbert 2024-10-03 15:27:27 +01:00 committed by David Sterba
parent 441ffe8a98
commit b628c13951
3 changed files with 0 additions and 17 deletions
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15
fs/btrfs/locking.c
View File

@ -161,21 +161,6 @@ int btrfs_try_tree_read_lock(struct extent_buffer *eb)
return 0;
}
/*
* Try-lock for write.
*
* Return 1 if the rwlock has been taken, 0 otherwise
*/
int btrfs_try_tree_write_lock(struct extent_buffer *eb)
{
if (down_write_trylock(&eb->lock)) {
btrfs_set_eb_lock_owner(eb, current->pid);
trace_btrfs_try_tree_write_lock(eb);
return 1;
}
return 0;
}
/*
* Release read lock.
*/

1
fs/btrfs/locking.h
View File

@ -180,7 +180,6 @@ static inline void btrfs_tree_read_lock(struct extent_buffer *eb)
void btrfs_tree_read_unlock(struct extent_buffer *eb);
int btrfs_try_tree_read_lock(struct extent_buffer *eb);
int btrfs_try_tree_write_lock(struct extent_buffer *eb);
struct extent_buffer *btrfs_lock_root_node(struct btrfs_root *root);
struct extent_buffer *btrfs_read_lock_root_node(struct btrfs_root *root);
struct extent_buffer *btrfs_try_read_lock_root_node(struct btrfs_root *root);

1
include/trace/events/btrfs.h
View File

@ -2344,7 +2344,6 @@ DEFINE_BTRFS_LOCK_EVENT(btrfs_tree_read_unlock_blocking);
DEFINE_BTRFS_LOCK_EVENT(btrfs_set_lock_blocking_read);
DEFINE_BTRFS_LOCK_EVENT(btrfs_set_lock_blocking_write);
DEFINE_BTRFS_LOCK_EVENT(btrfs_try_tree_read_lock);
DEFINE_BTRFS_LOCK_EVENT(btrfs_try_tree_write_lock);
DEFINE_BTRFS_LOCK_EVENT(btrfs_tree_read_lock_atomic);
DECLARE_EVENT_CLASS(btrfs__space_info_update,