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| author | Miklos Szeredi <mszeredi@redhat.com> | 2017-07-04 04:05:05 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2017-07-04 04:05:05 +0200 |
| commit | 7f53b7d047d221b9fe38b9f2203bd4499135be88 (patch) | |
| tree | f4832f5881522e80fba861bafe1e7c0cf136e291 /fs/overlayfs | |
| parent | ovl: don't set origin on broken lower hardlink (diff) | |
| parent | ACPI: hns_dsaf_acpi_dsm_guid can be static (diff) | |
| download | linux-7f53b7d047d221b9fe38b9f2203bd4499135be88.tar.xz linux-7f53b7d047d221b9fe38b9f2203bd4499135be88.zip | |
Merge tag 'uuid-for-4.13' of git://git.infradead.org/users/hch/uuid into overlayfs-next
UUID/GUID updates:
- introduce the new uuid_t/guid_t types that are going to replace
the somewhat confusing uuid_be/uuid_le types and make the terminology
fit the various specs, as well as the userspace libuuid library.
(me, based on a previous version from Amir)
- consolidated generic uuid/guid helper functions lifted from XFS
and libnvdimm (Amir and me)
- conversions to the new types and helpers (Amir, Andy and me)
Diffstat (limited to 'fs/overlayfs')
| -rw-r--r-- | fs/overlayfs/copy_up.c | 7 | ||||
| -rw-r--r-- | fs/overlayfs/namei.c | 2 | ||||
| -rw-r--r-- | fs/overlayfs/overlayfs.h | 2 |
3 files changed, 5 insertions, 6 deletions
diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c index a2a65120c9d0..e5869f91b3ab 100644 --- a/fs/overlayfs/copy_up.c +++ b/fs/overlayfs/copy_up.c @@ -233,7 +233,7 @@ int ovl_set_attr(struct dentry *upperdentry, struct kstat *stat) return err; } -static struct ovl_fh *ovl_encode_fh(struct dentry *lower, uuid_be *uuid) +static struct ovl_fh *ovl_encode_fh(struct dentry *lower, uuid_t *uuid) { struct ovl_fh *fh; int fh_type, fh_len, dwords; @@ -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); } diff --git a/fs/overlayfs/namei.c b/fs/overlayfs/namei.c index f3136c31e72a..de0d4f742f36 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, diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h index 0623cebeefff..10863b4105fa 100644 --- a/fs/overlayfs/overlayfs.h +++ b/fs/overlayfs/overlayfs.h @@ -56,7 +56,7 @@ struct ovl_fh { u8 len; /* size of this header + size of fid */ u8 flags; /* OVL_FH_FLAG_* */ u8 type; /* fid_type of fid */ - uuid_be uuid; /* uuid of filesystem */ + uuid_t uuid; /* uuid of filesystem */ u8 fid[0]; /* file identifier */ } __packed; |