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| author | Alex Elder <elder@inktank.com> | 2012-11-09 08:43:15 -0600 |
|---|---|---|
| committer | Alex Elder <elder@inktank.com> | 2013-01-17 15:52:01 -0600 |
| commit | 0ec8ce87f3bb5e4a561190f5320934e003405b6f (patch) | |
| tree | 75962a9eee906e1b02704ed4f5268f62b97118b5 | |
| parent | a7b4c65f4f15aa657b09d13da8f45ba0b72ec0df (diff) | |
| download | blackbird-op-linux-0ec8ce87f3bb5e4a561190f5320934e003405b6f.tar.gz blackbird-op-linux-0ec8ce87f3bb5e4a561190f5320934e003405b6f.zip | |
rbd: separate layout init
Pull a block of code that initializes the layout structure in an osd
request into its own function so it can be reused.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Dan Mick <dan.mick@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
| -rw-r--r-- | drivers/block/rbd.c | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 0fbe9add0446..d4e93a28fb6a 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -54,6 +54,7 @@ /* It might be useful to have this defined elsewhere too */ +#define U32_MAX ((u32) (~0U)) #define U64_MAX ((u64) (~0ULL)) #define RBD_DRV_NAME "rbd" @@ -1096,6 +1097,16 @@ static void rbd_coll_end_req(struct rbd_request *rbd_req, ret, len); } +static void rbd_layout_init(struct ceph_file_layout *layout, u64 pool_id) +{ + memset(layout, 0, sizeof (*layout)); + 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); + rbd_assert(pool_id <= (u64) U32_MAX); + layout->fl_pg_pool = cpu_to_le32((u32) pool_id); +} + /* * Send ceph osd request */ @@ -1117,7 +1128,6 @@ static int rbd_do_request(struct request *rq, u64 *ver) { struct ceph_osd_request *osd_req; - struct ceph_file_layout *layout; int ret; u64 bno; struct timespec mtime = CURRENT_TIME; @@ -1161,14 +1171,9 @@ static int rbd_do_request(struct request *rq, strncpy(osd_req->r_oid, object_name, sizeof(osd_req->r_oid)); osd_req->r_oid_len = strlen(osd_req->r_oid); - layout = &osd_req->r_file_layout; - memset(layout, 0, sizeof(*layout)); - 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((int) rbd_dev->spec->pool_id); - ret = ceph_calc_raw_layout(osdc, layout, snapid, ofs, &len, &bno, - osd_req, ops); + rbd_layout_init(&osd_req->r_file_layout, rbd_dev->spec->pool_id); + ret = ceph_calc_raw_layout(osdc, &osd_req->r_file_layout, + snapid, ofs, &len, &bno, osd_req, ops); rbd_assert(ret == 0); ceph_osdc_build_request(osd_req, ofs, &len, |
