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[06/29] vfs: add file_pos_unlock() for io_uring usage

Message ID 20230825135431.1317785-7-hao.xu@linux.dev
State New
Headers show
Series io_uring getdents | expand

Commit Message

Hao Xu Aug. 25, 2023, 1:54 p.m. UTC 
From: Hao Xu <howeyxu@tencent.com>

Add a helper to unlock f_pos_lock without any condition. Introduce this
since io_uring handles f_pos_lock not with a fd struct, thus
FDPUT_POS_UNLOCK isn't used.

Signed-off-by: Hao Xu <howeyxu@tencent.com>
---
 include/linux/file.h | 5 +++++
 1 file changed, 5 insertions(+)
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Patch

diff --git a/include/linux/file.h b/include/linux/file.h
index bcc6ba0aec50..a179f4794341 100644
--- a/include/linux/file.h
+++ b/include/linux/file.h
@@ -81,6 +81,11 @@  static inline void fdput_pos(struct fd f)
 	fdput(f);
 }
 
+static inline void file_pos_unlock(struct file *file)
+{
+	__f_unlock_pos(file);
+}
+
 extern int file_pos_lock_nowait(struct file *file, bool nowait);
 
 DEFINE_CLASS(fd, struct fd, fdput(_T), fdget(fd), int fd)