From: Yongpeng Yang <yangyongpeng@xiaomi.com>
Date: Thu, 15 Jan 2026 16:47:50 +0000 (+0800)
Subject: f2fs: pin files do not require sbi->writepages lock for ordering
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=be38b5717a2953648dd294418b7c2dfdb8e81d7a;p=thirdparty%2Fkernel%2Flinux.git

f2fs: pin files do not require sbi->writepages lock for ordering

For pinned files, the file mapping is already established before
writing, and since the writes are in IPU, there is no need to acquire
the sbi->writepages lock to guarantee write ordering.

Signed-off-by: Yongpeng Yang <yangyongpeng@xiaomi.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 9ef875e7b34c..84746a06cd58 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -3477,6 +3477,8 @@ static inline bool __should_serialize_io(struct inode *inode,
 	if (IS_NOQUOTA(inode))
 		return false;
 
+	if (f2fs_is_pinned_file(inode))
+		return false;
 	if (f2fs_need_compress_data(inode))
 		return true;
 	if (wbc->sync_mode != WB_SYNC_ALL)