include/linux/fs.h: add inode_lock_killable()

Prepare for making inode operations killable while they're waiting for
the lock.

Signed-off-by: Max Kellermann <max.kellermann@ionos.com>
Link: https://lore.kernel.org/20250513150327.1373061-1-max.kellermann@ionos.com
Signed-off-by: Christian Brauner <brauner@kernel.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/include/linux/fs.h b/include/linux/fs.h
index ddd54a664916..82c6093b8582 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -867,6 +867,11 @@ static inline void inode_lock(struct inode *inode)
 	down_write(&inode->i_rwsem);
 }
 
+static inline __must_check int inode_lock_killable(struct inode *inode)
+{
+	return down_write_killable(&inode->i_rwsem);
+}
+
 static inline void inode_unlock(struct inode *inode)
 {
 	up_write(&inode->i_rwsem);
@@ -877,6 +882,11 @@ static inline void inode_lock_shared(struct inode *inode)
 	down_read(&inode->i_rwsem);
 }
 
+static inline __must_check int inode_lock_shared_killable(struct inode *inode)
+{
+	return down_read_killable(&inode->i_rwsem);
+}
+
 static inline void inode_unlock_shared(struct inode *inode)
 {
 	up_read(&inode->i_rwsem);