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| author | Alex Elder <elder@inktank.com> | 2012-07-03 23:01:19 +0200 |
|---|---|---|
| committer | Alex Elder <elder@inktank.com> | 2012-10-01 21:30:54 +0200 |
| commit | 6e14b1a6c3b8d7e48ece68733d2dac0464611ee4 (patch) | |
| tree | ff1c6851a6de987cf932a90277e830f00867964f /drivers/block | |
| parent | rbd: get snapshot name for a v2 image (diff) | |
| download | linux-6e14b1a6c3b8d7e48ece68733d2dac0464611ee4.tar.xz linux-6e14b1a6c3b8d7e48ece68733d2dac0464611ee4.zip | |
rbd: update remaining header fields for v2
There are three fields that are not yet updated for format 2 rbd
image headers: the version of the header object; the encryption
type; and the compression type. There is no interface defined for
fetching the latter two, so just initialize them explicitly to 0 for
now.
Change rbd_dev_v2_snap_context() so the caller can be supplied the
version for the header object.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/rbd.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index b51f1c997c1d..2f1bef8c1d88 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -2241,7 +2241,7 @@ static int rbd_dev_v2_features(struct rbd_device *rbd_dev) &rbd_dev->header.features); } -static int rbd_dev_v2_snap_context(struct rbd_device *rbd_dev) +static int rbd_dev_v2_snap_context(struct rbd_device *rbd_dev, u64 *ver) { size_t size; int ret; @@ -2269,7 +2269,7 @@ static int rbd_dev_v2_snap_context(struct rbd_device *rbd_dev) "rbd", "get_snapcontext", NULL, 0, reply_buf, size, - CEPH_OSD_FLAG_READ, NULL); + CEPH_OSD_FLAG_READ, ver); dout("%s: rbd_req_sync_exec returned %d\n", __func__, ret); if (ret < 0) goto out; @@ -2906,6 +2906,7 @@ static int rbd_dev_v2_probe(struct rbd_device *rbd_dev) { size_t size; int ret; + u64 ver = 0; /* * Image id was filled in by the caller. Record the header @@ -2936,11 +2937,18 @@ static int rbd_dev_v2_probe(struct rbd_device *rbd_dev) if (ret < 0) goto out_err; - /* Get the snapshot context */ + /* crypto and compression type aren't (yet) supported for v2 images */ + + rbd_dev->header.crypt_type = 0; + rbd_dev->header.comp_type = 0; - ret = rbd_dev_v2_snap_context(rbd_dev); + /* Get the snapshot context, plus the header version */ + + ret = rbd_dev_v2_snap_context(rbd_dev, &ver); if (ret) goto out_err; + rbd_dev->header.obj_version = ver; + rbd_dev->image_format = 2; dout("discovered version 2 image, header name is %s\n", |