From: Chao Yu <chao@kernel.org>
Date: Wed, 3 Apr 2024 14:24:20 +0000 (+0800)
Subject: f2fs: fix to check pinfile flag in f2fs_move_file_range()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=e07230da0500e0919a765037c5e81583b519be2c;p=linux.git

f2fs: fix to check pinfile flag in f2fs_move_file_range()

ioctl(F2FS_IOC_MOVE_RANGE) can truncate or punch hole on pinned file,
fix to disallow it.

Fixes: 5fed0be8583f ("f2fs: do not allow partial truncation on pinned file")
Signed-off-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 fc3d4d69e72c0..681dfa8775ab4 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2860,7 +2860,8 @@ static int f2fs_move_file_range(struct file *file_in, loff_t pos_in,
 			goto out;
 	}
 
-	if (f2fs_compressed_file(src) || f2fs_compressed_file(dst)) {
+	if (f2fs_compressed_file(src) || f2fs_compressed_file(dst) ||
+		f2fs_is_pinned_file(src) || f2fs_is_pinned_file(dst)) {
 		ret = -EOPNOTSUPP;
 		goto out_unlock;
 	}