fs: switch ->s_uuid to uuid_t
For some file systems we still memcpy into it, but in various places this
already allows us to use the proper uuid helpers. More to come..
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Acked-by: Mimi Zohar <zohar@linux.vnet.ibm.com> (Changes to IMA/EVM)
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
diff --git a/fs/overlayfs/namei.c b/fs/overlayfs/namei.c
index f3136c3..de0d4f7 100644
--- a/fs/overlayfs/namei.c
+++ b/fs/overlayfs/namei.c
@@ -135,7 +135,7 @@ static struct dentry *ovl_get_origin(struct dentry *dentry,
* Make sure that the stored uuid matches the uuid of the lower
* layer where file handle will be decoded.
*/
- if (uuid_be_cmp(fh->uuid, *(uuid_be *) &mnt->mnt_sb->s_uuid))
+ if (!uuid_equal(&fh->uuid, &mnt->mnt_sb->s_uuid))
goto out;
origin = exportfs_decode_fh(mnt, (struct fid *)fh->fid,