gfs2: Don't support fallocate on jdata files
We cannot provide an efficient implementation due to the headers
on the data blocks, so there doesn't seem much point in having it.
Signed-off-by: Abhi Das <adas@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index c706c6d..8252115 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -917,7 +917,7 @@
struct gfs2_holder gh;
int ret;
- if (mode & ~FALLOC_FL_KEEP_SIZE)
+ if ((mode & ~FALLOC_FL_KEEP_SIZE) || gfs2_is_jdata(ip))
return -EOPNOTSUPP;
mutex_lock(&inode->i_mutex);
