diff options
| author | Alex Elder <elder@inktank.com> | 2012-07-12 10:46:35 -0500 |
|---|---|---|
| committer | Sage Weil <sage@inktank.com> | 2012-07-30 09:30:00 -0700 |
| commit | 9bb2f334b9b5f2eb6030b7988b7f2302c3115bbb (patch) | |
| tree | 8e43a1a384101819c97d5ab9114c2bf748431463 /drivers/block/rbd.c | |
| parent | ca1e49a6afe87ea4e2d3e73e10d1d3c0fad2aa3f (diff) | |
rbd: create pool_id device attribute
Add an entry under /sys/bus/rbd/devices/<N>/ named "pool_id" that
provides the id for the pool the rbd image is assocatied with. This
is in addition to the pool name already provided.
Rename the "poolid" field in struct rbd_device to be "pool_id".
Update the documentation to reflect the addition of this new entry.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Diffstat (limited to 'drivers/block/rbd.c')
| -rw-r--r-- | drivers/block/rbd.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 523413bdca92..80320fd1c621 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -167,7 +167,7 @@ struct rbd_device { int obj_len; char obj_md_name[RBD_MAX_MD_NAME_LEN]; /* hdr nm. */ char pool_name[RBD_MAX_POOL_NAME_LEN]; - int poolid; + int pool_id; struct ceph_osd_event *watch_event; struct ceph_osd_request *watch_request; @@ -920,7 +920,7 @@ static int rbd_do_request(struct request *rq, layout->fl_stripe_unit = cpu_to_le32(1 << RBD_MAX_OBJ_ORDER); layout->fl_stripe_count = cpu_to_le32(1); layout->fl_object_size = cpu_to_le32(1 << RBD_MAX_OBJ_ORDER); - layout->fl_pg_pool = cpu_to_le32(dev->poolid); + layout->fl_pg_pool = cpu_to_le32(dev->pool_id); ceph_calc_raw_layout(osdc, layout, snapid, ofs, &len, &bno, req, ops); @@ -1643,7 +1643,7 @@ static int rbd_header_add_snap(struct rbd_device *dev, return -EINVAL; monc = &dev->rbd_client->client->monc; - ret = ceph_monc_create_snapid(monc, dev->poolid, &new_snapid); + ret = ceph_monc_create_snapid(monc, dev->pool_id, &new_snapid); dout("created snapid=%lld\n", new_snapid); if (ret < 0) return ret; @@ -1847,6 +1847,14 @@ static ssize_t rbd_pool_show(struct device *dev, return sprintf(buf, "%s\n", rbd_dev->pool_name); } +static ssize_t rbd_pool_id_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct rbd_device *rbd_dev = dev_to_rbd_dev(dev); + + return sprintf(buf, "%d\n", rbd_dev->pool_id); +} + static ssize_t rbd_name_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -1887,6 +1895,7 @@ static DEVICE_ATTR(size, S_IRUGO, rbd_size_show, NULL); static DEVICE_ATTR(major, S_IRUGO, rbd_major_show, NULL); static DEVICE_ATTR(client_id, S_IRUGO, rbd_client_id_show, NULL); static DEVICE_ATTR(pool, S_IRUGO, rbd_pool_show, NULL); +static DEVICE_ATTR(pool_id, S_IRUGO, rbd_pool_id_show, NULL); static DEVICE_ATTR(name, S_IRUGO, rbd_name_show, NULL); static DEVICE_ATTR(refresh, S_IWUSR, NULL, rbd_image_refresh); static DEVICE_ATTR(current_snap, S_IRUGO, rbd_snap_show, NULL); @@ -1897,6 +1906,7 @@ static struct attribute *rbd_attrs[] = { &dev_attr_major.attr, &dev_attr_client_id.attr, &dev_attr_pool.attr, + &dev_attr_pool_id.attr, &dev_attr_name.attr, &dev_attr_current_snap.attr, &dev_attr_refresh.attr, @@ -2430,7 +2440,7 @@ static ssize_t rbd_add(struct bus_type *bus, rc = ceph_pg_poolid_by_name(osdc->osdmap, rbd_dev->pool_name); if (rc < 0) goto err_out_client; - rbd_dev->poolid = rc; + rbd_dev->pool_id = rc; /* register our block device */ rc = register_blkdev(0, rbd_dev->name); |