summaryrefslogtreecommitdiffstats
path: root/xlators/mgmt/glusterd/src/glusterd-volume-ops.c
diff options
context:
space:
mode:
authorM. Mohan Kumar <mohan@in.ibm.com>2013-11-13 22:44:43 +0530
committerAnand Avati <avati@redhat.com>2013-11-13 11:39:22 -0800
commit81a57679c20ac0ac9b48e313af75036132e3a5ad (patch)
treec99c3cf75096a2530b65a3bb5b3c19c2c463b7fa /xlators/mgmt/glusterd/src/glusterd-volume-ops.c
parentb222ce817f5f324fe20d4d3614001ed2f177afb8 (diff)
bd: Add support to create clone, snapshot and merge of LV images.
Special xattr names "clone" & "snapshot" can be used to create full and linked clone of the LV images. GFID of destination posix file (to be mapped) is passed as a value to the xattr. Destination posix file must exist before running this operation. These operations form a basis for offloading storage related operations from QEMU to GlusterFS. Syntax for full clone: xattr name: "clone" value: "gfid-of-dest-file" Syntax for linked clone: xattr name: "snapshot" value: "gfid-of-dest-file" Syntax for merging: xattr name: "merge" value: "path-to-snapshot-file" Example: setfattr -n clone -v <gfid-of-dest-file> /media/source setfattr -n snapshot -v <gfid-of-dest-file> /media/source setfattr -n merge -v "/media/sn" /media/sn Change-Id: Id9f984a709d4c2e52a64ae75bb12a8ecb01f8776 BUG: 1028672 Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com> Reviewed-on: http://review.gluster.org/5626 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
Diffstat (limited to 'xlators/mgmt/glusterd/src/glusterd-volume-ops.c')
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-volume-ops.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-volume-ops.c b/xlators/mgmt/glusterd/src/glusterd-volume-ops.c
index a2bd7334c93..561ff652d81 100644
--- a/xlators/mgmt/glusterd/src/glusterd-volume-ops.c
+++ b/xlators/mgmt/glusterd/src/glusterd-volume-ops.c
@@ -665,7 +665,7 @@ glusterd_is_valid_vg (glusterd_brickinfo_t *brick, int check_tag, char *msg)
}
next:
- brick->caps = CAPS_BD;
+ brick->caps = CAPS_BD | CAPS_OFFLOAD_COPY | CAPS_OFFLOAD_SNAPSHOT;
dm_lvlist = lvm_vg_list_lvs (vg);
if (!dm_lvlist)
@@ -953,7 +953,6 @@ glusterd_op_stage_start_volume (dict_t *dict, char **op_errstr)
}
}
-
list_for_each_entry (brickinfo, &volinfo->bricks, brick_list) {
ret = glusterd_resolve_brick (brickinfo);
if (ret) {
@@ -1011,8 +1010,8 @@ glusterd_op_stage_start_volume (dict_t *dict, char **op_errstr)
}
#ifdef HAVE_BD_XLATOR
if (brickinfo->vg[0])
- caps = CAPS_BD | CAPS_THIN;
-
+ caps = CAPS_BD | CAPS_THIN |
+ CAPS_OFFLOAD_COPY | CAPS_OFFLOAD_SNAPSHOT;
/* Check for VG/thin pool if its BD volume */
if (brickinfo->vg[0]) {
ret = glusterd_is_valid_vg (brickinfo, 0, msg);
@@ -1602,7 +1601,7 @@ glusterd_op_create_volume (dict_t *dict, char **op_errstr)
if (count)
brick = strtok_r (brick_list+1, " \n", &saveptr);
- caps = CAPS_BD | CAPS_THIN;
+ caps = CAPS_BD | CAPS_THIN | CAPS_OFFLOAD_COPY | CAPS_OFFLOAD_SNAPSHOT;
while ( i <= count) {
ret = glusterd_brickinfo_new_from_brick (brick, &brickinfo);