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f2fs: fix to avoid move_range and defragment on device_alias file

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It's forbidden to migrate blocks of device alias file.

Cc: stable@kernel.org
Fixes: 128d333f0d ("f2fs: introduce device aliasing file")
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2026-06-23 20:48:23 +08:00 committed by Jaegeuk Kim
parent 28c1ef094e
commit 1b4db09b7f
1 changed files with 5 additions and 1 deletions
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6
fs/f2fs/file.c
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@ -3092,6 +3092,9 @@ static int f2fs_ioc_defragment(struct file *filp, unsigned long arg)
if (f2fs_readonly(sbi->sb))
return -EROFS;
if (IS_DEVICE_ALIASING(inode))
return -EOPNOTSUPP;
if (copy_from_user(&range, (struct f2fs_defragment __user *)arg,
sizeof(range)))
return -EFAULT;
@ -3145,7 +3148,8 @@ static int f2fs_move_file_range(struct file *file_in, loff_t pos_in,
if (!S_ISREG(src->i_mode) || !S_ISREG(dst->i_mode))
return -EINVAL;
if (IS_ENCRYPTED(src) || IS_ENCRYPTED(dst))
if (IS_ENCRYPTED(src) || IS_ENCRYPTED(dst) ||
IS_DEVICE_ALIASING(src) || IS_DEVICE_ALIASING(dst))
return -EOPNOTSUPP;
if (pos_out < 0 || pos_in < 0)