From: Daeho Jeong <daehojeong@google.com>
Date: Mon, 11 Mar 2024 23:59:19 +0000 (-0700)
Subject: f2fs: prevent atomic write on pinned file
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=c644af1332833a5baa2b6a9220d1a1d988352b26;p=linux.git

f2fs: prevent atomic write on pinned file

Since atomic write way was changed to out-place-update, we should
prevent it on pinned files.

Signed-off-by: Daeho Jeong <daehojeong@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 4dfe38e731301..8a2a44ab3d32a 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2083,7 +2083,8 @@ static int f2fs_ioc_start_atomic_write(struct file *filp, bool truncate)
 
 	inode_lock(inode);
 
-	if (!f2fs_disable_compressed_file(inode)) {
+	if (!f2fs_disable_compressed_file(inode) ||
+			f2fs_is_pinned_file(inode)) {
 		ret = -EINVAL;
 		goto out;
 	}