diff options
| author | vmallika <vmallika@redhat.com> | 2016-02-10 06:39:22 +0530 |
|---|---|---|
| committer | Rajesh Joseph <rjoseph@redhat.com> | 2016-03-23 04:03:52 -0700 |
| commit | ed4feadc8c60fce1d8d99e0732351b92230d6321 (patch) | |
| tree | a075150b6867a32c702939bb08728ca878fa0d48 /xlators/features/snapview-server/src/snapview-server.h | |
| parent | f5f43424994859f263165f0cdebedffd5f08fdcc (diff) | |
uss/gluster: generate gfid for snapshot files from snapname and gfid
This is a backport of http://review.gluster.org/#/c/9255/
If 'a' and 'b' are hardlinks, we need to generate a virtual
gfid for these files so that the inode number for 'a' and 'b'
are same.
Generate gfid as below:
gfid_of_a = MD5(snapname + back_end_gfid(a))
if '/dir1/a' and '/dir2/b' are hardlinks, then inode number should be
same for
all below files:
/mnt/.snaps/snap1/dir1/a
/mnt/.snaps/snap1/dir2/b
/mnt/dir1/.snaps/snap1/a
/mnt/dir2/.snaps/snap1/b
> Change-Id: Ifda793455610e554f3f1e4cbb90d44c02cda4b0f
> BUG: 1171703
> Signed-off-by: vmallika <vmallika@redhat.com>
Change-Id: I917b2fe2915d88f69700bc8c3283e9c613e13bb8
BUG: 1316099
Signed-off-by: vmallika <vmallika@redhat.com>
Reviewed-on: http://review.gluster.org/13656
Smoke: Gluster Build System <jenkins@build.gluster.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Rajesh Joseph <rjoseph@redhat.com>
Diffstat (limited to 'xlators/features/snapview-server/src/snapview-server.h')
| -rw-r--r-- | xlators/features/snapview-server/src/snapview-server.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/xlators/features/snapview-server/src/snapview-server.h b/xlators/features/snapview-server/src/snapview-server.h index c80d3456c30..f9249f9d828 100644 --- a/xlators/features/snapview-server/src/snapview-server.h +++ b/xlators/features/snapview-server/src/snapview-server.h @@ -105,6 +105,17 @@ } \ } while(0); +#define SVS_STRDUP(dst, src) \ + do { \ + if (dst && strcmp (src, dst)) { \ + GF_FREE (dst); \ + dst = NULL; \ + } \ + \ + if (!dst) \ + dst = gf_strdup (src); \ + } while (0) + int svs_mgmt_submit_request (void *req, call_frame_t *frame, glusterfs_ctx_t *ctx, @@ -133,6 +144,11 @@ struct svs_inode { from where the entry point was entered is saved. */ uuid_t pargfid; + + /* This is used to generate gfid for all sub files/dirs under this + * snapshot + */ + char *snapname; struct iatt buf; }; typedef struct svs_inode svs_inode_t; @@ -194,6 +210,9 @@ svs_fd_t * svs_fd_ctx_get_or_new (xlator_t *this, fd_t *fd); void +svs_uuid_generate (uuid_t gfid, char *snapname, uuid_t origin_gfid); + +void svs_fill_ino_from_gfid (struct iatt *buf); void |