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Message-ID: <20241003142727.203981-2-linux@treblig.org>
Date: Thu, 3 Oct 2024 15:27:27 +0100
From: linux@...blig.org
To: clm@...com,
josef@...icpanda.com,
dsterba@...e.com,
hch@....de
Cc: rostedt@...dmis.org,
mhiramat@...nel.org,
mathieu.desnoyers@...icios.com,
linux-btrfs@...r.kernel.org,
linux-kernel@...r.kernel.org,
"Dr. David Alan Gilbert" <linux@...blig.org>
Subject: [PATCH] btrfs: Remove unused btrfs_try_tree_write_lock
From: "Dr. David Alan Gilbert" <linux@...blig.org>
btrfs_try_tree_write_lock() is unused since commit
50b21d7a066f ("btrfs: submit a writeback bio per extent_buffer")
Remove it (and it's associated trace).
Signed-off-by: Dr. David Alan Gilbert <linux@...blig.org>
---
fs/btrfs/locking.c | 15 ---------------
fs/btrfs/locking.h | 1 -
include/trace/events/btrfs.h | 1 -
3 files changed, 17 deletions(-)
diff --git a/fs/btrfs/locking.c b/fs/btrfs/locking.c
index 6a0b7abb5bd9..9a7a7b723305 100644
--- a/fs/btrfs/locking.c
+++ b/fs/btrfs/locking.c
@@ -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.
*/
diff --git a/fs/btrfs/locking.h b/fs/btrfs/locking.h
index 3c15c75e0582..46c8be2afab1 100644
--- a/fs/btrfs/locking.h
+++ b/fs/btrfs/locking.h
@@ -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);
diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h
index bf60ad50011e..9b8d41a00234 100644
--- a/include/trace/events/btrfs.h
+++ b/include/trace/events/btrfs.h
@@ -2341,7 +2341,6 @@ 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,
--
2.46.2
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