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authorSage Weil <sage@inktank.com>2013-02-25 16:13:08 -0800
committerSage Weil <sage@inktank.com>2013-02-26 15:02:37 -0800
commit2169aea649c08374bec7d220a3b8f64712275356 (patch)
tree8a287c8239a5e1fc47afae4fbec530a467825706 /net/ceph/osd_client.c
parent4f6a7e5ee1393ec4b243b39dac9f36992d161540 (diff)
downloadlinux-2169aea649c08374bec7d220a3b8f64712275356.tar.bz2
libceph: calculate placement based on the internal data types
Instead of using the old ceph_object_layout struct, update our internal ceph_calc_object_layout method to use the ceph_pg type. This allows us to pass the full 32-bit precision of the pgid.seed to the callers. It also allows some callers to avoid reaching into the request structures for the struct ceph_object_layout fields. Signed-off-by: Sage Weil <sage@inktank.com> Reviewed-by: Alex Elder <elder@inktank.com>
Diffstat (limited to 'net/ceph/osd_client.c')
-rw-r--r--net/ceph/osd_client.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index 1990834e518b..5584f0a08e28 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -913,21 +913,18 @@ EXPORT_SYMBOL(ceph_osdc_set_request_linger);
static int __map_request(struct ceph_osd_client *osdc,
struct ceph_osd_request *req, int force_resend)
{
- struct ceph_osd_request_head *reqhead = req->r_request->front.iov_base;
struct ceph_pg pgid;
int acting[CEPH_PG_MAX_SIZE];
int o = -1, num = 0;
int err;
dout("map_request %p tid %lld\n", req, req->r_tid);
- err = ceph_calc_object_layout(&reqhead->layout, req->r_oid,
+ err = ceph_calc_object_layout(&pgid, req->r_oid,
&req->r_file_layout, osdc->osdmap);
if (err) {
list_move(&req->r_req_lru_item, &osdc->req_notarget);
return err;
}
- pgid.pool = le32_to_cpu(reqhead->layout.ol_pgid.pool);
- pgid.seed = le16_to_cpu(reqhead->layout.ol_pgid.ps);
req->r_pgid = pgid;
err = ceph_calc_pg_acting(osdc->osdmap, pgid, acting);
@@ -1000,10 +997,16 @@ static void __send_request(struct ceph_osd_client *osdc,
req, req->r_tid, req->r_osd->o_osd, req->r_flags);
reqhead = req->r_request->front.iov_base;
+ reqhead->snapid = cpu_to_le64(req->r_snapid);
reqhead->osdmap_epoch = cpu_to_le32(osdc->osdmap->epoch);
reqhead->flags |= cpu_to_le32(req->r_flags); /* e.g., RETRY */
reqhead->reassert_version = req->r_reassert_version;
+ reqhead->layout.ol_pgid.ps = cpu_to_le16(req->r_pgid.seed);
+ reqhead->layout.ol_pgid.pool = cpu_to_le32(req->r_pgid.pool);
+ reqhead->layout.ol_pgid.preferred = cpu_to_le16(-1);
+ reqhead->layout.ol_stripe_unit = 0;
+
req->r_stamp = jiffies;
list_move_tail(&req->r_req_lru_item, &osdc->req_lru);