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 4dfe38e7313011523a5ce07bd6400610dd36841a..8a2a44ab3d32a1062a6ade09d1adfddcc2bbdaa0 100644 (file)
--- 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;
        }