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authorIlya Dryomov <idryomov@gmail.com>2017-06-15 17:30:54 +0300
committerIlya Dryomov <idryomov@gmail.com>2017-07-07 18:25:16 +0300
commit7de030d6b10a56e991312a978ace6be3c090097c (patch)
tree216a8491662a79544bf10879b8d6eb0d9b6f3be4 /net/ceph
parent84ed45df4604ae9b1065b5fe2f250f57f7c69baf (diff)
downloadlinux-7de030d6b10a56e991312a978ace6be3c090097c.tar.xz
libceph: resend on PG splits if OSD has RESEND_ON_SPLIT
Note that ceph_osd_request_target fields are updated regardless of RESEND_ON_SPLIT. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'net/ceph')
-rw-r--r--net/ceph/osd_client.c21
-rw-r--r--net/ceph/osdmap.c7
2 files changed, 17 insertions, 11 deletions
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index 4143f73590f3..518dbac599d0 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -1319,6 +1319,7 @@ enum calc_target_result {
static enum calc_target_result calc_target(struct ceph_osd_client *osdc,
struct ceph_osd_request_target *t,
+ struct ceph_connection *con,
bool any_change)
{
struct ceph_pg_pool_info *pi;
@@ -1327,6 +1328,7 @@ static enum calc_target_result calc_target(struct ceph_osd_client *osdc,
bool force_resend = false;
bool unpaused = false;
bool legacy_change;
+ bool split = false;
bool need_check_tiering = false;
bool sort_bitwise = ceph_osdmap_flag(osdc, CEPH_OSDMAP_SORTBITWISE);
enum calc_target_result ct_res;
@@ -1398,8 +1400,10 @@ static enum calc_target_result calc_target(struct ceph_osd_client *osdc,
}
legacy_change = ceph_pg_compare(&t->pgid, &pgid) ||
ceph_osds_changed(&t->acting, &acting, any_change);
+ if (t->pg_num)
+ split = ceph_pg_is_split(&last_pgid, t->pg_num, pi->pg_num);
- if (legacy_change || force_resend) {
+ if (legacy_change || force_resend || split) {
t->pgid = pgid; /* struct */
ceph_pg_to_primary_shard(osdc->osdmap, &pgid, &t->spgid);
ceph_osds_copy(&t->acting, &acting);
@@ -1413,7 +1417,9 @@ static enum calc_target_result calc_target(struct ceph_osd_client *osdc,
t->osd = acting.primary;
}
- if (unpaused || legacy_change || force_resend)
+ if (unpaused || legacy_change || force_resend ||
+ (split && con && CEPH_HAVE_FEATURE(con->peer_features,
+ RESEND_ON_SPLIT)))
ct_res = CALC_TARGET_NEED_RESEND;
else
ct_res = CALC_TARGET_NO_ACTION;
@@ -1765,7 +1771,7 @@ static void __submit_request(struct ceph_osd_request *req, bool wrlocked)
dout("%s req %p wrlocked %d\n", __func__, req, wrlocked);
again:
- ct_res = calc_target(osdc, &req->r_t, false);
+ ct_res = calc_target(osdc, &req->r_t, NULL, false);
if (ct_res == CALC_TARGET_POOL_DNE && !wrlocked)
goto promote;
@@ -2561,7 +2567,7 @@ static void linger_submit(struct ceph_osd_linger_request *lreq)
struct ceph_osd_client *osdc = lreq->osdc;
struct ceph_osd *osd;
- calc_target(osdc, &lreq->t, false);
+ calc_target(osdc, &lreq->t, NULL, false);
osd = lookup_create_osd(osdc, lreq->t.osd, true);
link_linger(osd, lreq);
@@ -3179,7 +3185,7 @@ recalc_linger_target(struct ceph_osd_linger_request *lreq)
struct ceph_osd_client *osdc = lreq->osdc;
enum calc_target_result ct_res;
- ct_res = calc_target(osdc, &lreq->t, true);
+ ct_res = calc_target(osdc, &lreq->t, NULL, true);
if (ct_res == CALC_TARGET_NEED_RESEND) {
struct ceph_osd *osd;
@@ -3250,7 +3256,8 @@ static void scan_requests(struct ceph_osd *osd,
n = rb_next(n); /* unlink_request(), check_pool_dne() */
dout("%s req %p tid %llu\n", __func__, req, req->r_tid);
- ct_res = calc_target(osdc, &req->r_t, false);
+ ct_res = calc_target(osdc, &req->r_t, &req->r_osd->o_con,
+ false);
switch (ct_res) {
case CALC_TARGET_NO_ACTION:
force_resend_writes = cleared_full ||
@@ -3359,7 +3366,7 @@ static void kick_requests(struct ceph_osd_client *osdc,
erase_request(need_resend, req); /* before link_request() */
WARN_ON(req->r_osd);
- calc_target(osdc, &req->r_t, false);
+ calc_target(osdc, &req->r_t, NULL, false);
osd = lookup_create_osd(osdc, req->r_t.osd, true);
link_request(osd, req);
if (!req->r_linger) {
diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c
index a4155620eace..367879afed58 100644
--- a/net/ceph/osdmap.c
+++ b/net/ceph/osdmap.c
@@ -1753,9 +1753,8 @@ void ceph_osds_copy(struct ceph_osds *dest, const struct ceph_osds *src)
dest->primary = src->primary;
}
-static bool is_split(const struct ceph_pg *pgid,
- u32 old_pg_num,
- u32 new_pg_num)
+bool ceph_pg_is_split(const struct ceph_pg *pgid, u32 old_pg_num,
+ u32 new_pg_num)
{
int old_bits = calc_bits_of(old_pg_num);
int old_mask = (1 << old_bits) - 1;
@@ -1800,7 +1799,7 @@ bool ceph_is_new_interval(const struct ceph_osds *old_acting,
!osds_equal(old_up, new_up) ||
old_size != new_size ||
old_min_size != new_min_size ||
- is_split(pgid, old_pg_num, new_pg_num) ||
+ ceph_pg_is_split(pgid, old_pg_num, new_pg_num) ||
old_sort_bitwise != new_sort_bitwise;
}