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authorChristoph Hellwig <hch@lst.de>2017-05-10 15:06:33 +0200
committerChristoph Hellwig <hch@lst.de>2017-06-05 16:59:12 +0200
commit85787090a21eb749d8b347eaf9ff1a455637473c (patch)
tree25f85517eb05e430352aff20e571fb604ec6abd1 /fs/overlayfs/copy_up.c
parentima/policy: switch to use uuid_t (diff)
downloadlinux-dev-85787090a21eb749d8b347eaf9ff1a455637473c.tar.xz
linux-dev-85787090a21eb749d8b347eaf9ff1a455637473c.zip
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>
Diffstat (limited to 'fs/overlayfs/copy_up.c')
-rw-r--r--fs/overlayfs/copy_up.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c
index 7a44533f4bbf..d55fceb4e414 100644
--- a/fs/overlayfs/copy_up.c
+++ b/fs/overlayfs/copy_up.c
@@ -284,7 +284,6 @@ static int ovl_set_origin(struct dentry *dentry, struct dentry *lower,
struct dentry *upper)
{
struct super_block *sb = lower->d_sb;
- uuid_be *uuid = (uuid_be *) &sb->s_uuid;
const struct ovl_fh *fh = NULL;
int err;
@@ -294,8 +293,8 @@ static int ovl_set_origin(struct dentry *dentry, struct dentry *lower,
* up and a pure upper inode.
*/
if (sb->s_export_op && sb->s_export_op->fh_to_dentry &&
- uuid_be_cmp(*uuid, NULL_UUID_BE)) {
- fh = ovl_encode_fh(lower, uuid);
+ !uuid_is_null(&sb->s_uuid)) {
+ fh = ovl_encode_fh(lower, &sb->s_uuid);
if (IS_ERR(fh))
return PTR_ERR(fh);
}