Prepare for making inode operations killable while they're waiting for
the lock.
Signed-off-by: Max Kellermann <max.kellermann@xxxxxxxxx>
---
include/linux/fs.h | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 016b0fe1536e..5e4ac873228d 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);
--
2.47.2
