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charset="utf-8" If a file has FI_COMPRESS_RELEASED, all writes for it should not be allowed. Fixes: 5fdb322ff2c2 ("f2fs: add F2FS_IOC_DECOMPRESS_FILE and F2FS_IOC_COMPR= ESS_FILE") Signed-off-by: Qi Han Signed-off-by: Yangtao Li --- fs/f2fs/file.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 9c9c3f660e01..c21d6a829c4a 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -2734,6 +2734,9 @@ static int f2fs_ioc_defragment(struct file *filp, uns= igned long arg) if (f2fs_readonly(sbi->sb)) return -EROFS; =20 + if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) + return -EINVAL; + if (copy_from_user(&range, (struct f2fs_defragment __user *)arg, sizeof(range))) return -EFAULT; --=20 2.39.0