diff options
| author | Mateusz Guzik <mjguzik@gmail.com> | 2025-12-03 10:48:36 +0100 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2025-12-15 14:33:38 +0100 |
| commit | 1fa4e69a54a250fa17d2afd9c5b54a59329033c1 (patch) | |
| tree | aca72244bcb7200d1666fef9878494ad4c343108 /include | |
| parent | 5854fc6391e9d67c9ebfb4cb618406b5a372db6b (diff) | |
filelock: use a consume fence in locks_inode_context()
Matches the idiom of storing a pointer with a release fence and safely
getting the content with a consume fence after.
Eliminates an actual fence on some archs.
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Mateusz Guzik <mjguzik@gmail.com>
Link: https://patch.msgid.link/20251203094837.290654-1-mjguzik@gmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/filelock.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/filelock.h b/include/linux/filelock.h index 54b824c05299..dc15f5427680 100644 --- a/include/linux/filelock.h +++ b/include/linux/filelock.h @@ -241,7 +241,10 @@ bool locks_owner_has_blockers(struct file_lock_context *flctx, static inline struct file_lock_context * locks_inode_context(const struct inode *inode) { - return smp_load_acquire(&inode->i_flctx); + /* + * Paired with the fence in locks_get_lock_context(). + */ + return READ_ONCE(inode->i_flctx); } #else /* !CONFIG_FILE_LOCKING */ |