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staging: lustre: rename variables in lnet_find_route_locked

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Rename several variables in lnet_find_route_locked to make
the code easier to understand. Broken out of patch 7857.

Signed-off-by: Chris Horn <hornc@cray.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3679
Reviewed-on: http://review.whamcloud.com/7857
Reviewed-by: Cory Spitz <spitzcor@cray.com>
Reviewed-by: Isaac Huang <he.huang@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chris Horn 2016-02-15 10:25:45 -05:00 • committed by Greg Kroah-Hartman
commit 4f0bedeccf
1 changed files with 16 additions and 16 deletions
Download patch file Download diff file Expand all files Collapse all files

32
drivers/staging/lustre/lnet/lnet/lib-move.c
View file

@ -1135,9 +1135,9 @@ static lnet_peer_t *
lnet_find_route_locked(lnet_ni_t *ni, lnet_nid_t target, lnet_nid_t rtr_nid)
{
lnet_remotenet_t *rnet;
lnet_route_t *rtr;
lnet_route_t *rtr_best;
lnet_route_t *rtr_last;
lnet_route_t *route;
lnet_route_t *best_route;
lnet_route_t *last_route;
struct lnet_peer *lp_best;
struct lnet_peer *lp;
int rc;
@ -1151,14 +1151,14 @@ lnet_find_route_locked(lnet_ni_t *ni, lnet_nid_t target, lnet_nid_t rtr_nid)
return NULL;
lp_best = NULL;
rtr_best = NULL;
rtr_last = NULL;
list_for_each_entry(rtr, &rnet->lrn_routes, lr_list) {
lp = rtr->lr_gateway;
best_route = NULL;
last_route = NULL;
list_for_each_entry(route, &rnet->lrn_routes, lr_list) {
lp = route->lr_gateway;
if (!lp->lp_alive || /* gateway is down */
((lp->lp_ping_feats & LNET_PING_FEAT_NI_STATUS) &&
rtr->lr_downis)) /* NI to target is down */
route->lr_downis)) /* NI to target is down */
continue;
if (ni && lp->lp_ni != ni)
@ -1168,21 +1168,21 @@ lnet_find_route_locked(lnet_ni_t *ni, lnet_nid_t target, lnet_nid_t rtr_nid)
return lp;
if (!lp_best) {
rtr_best = rtr;
rtr_last = rtr;
best_route = route;
last_route = route;
lp_best = lp;
continue;
}
/* no protection on below fields, but it's harmless */
if (rtr_last->lr_seq - rtr->lr_seq < 0)
rtr_last = rtr;
if (last_route->lr_seq - route->lr_seq < 0)
last_route = route;
rc = lnet_compare_routes(rtr, rtr_best);
rc = lnet_compare_routes(route, best_route);
if (rc < 0)
continue;
rtr_best = rtr;
best_route = route;
lp_best = lp;
}
@ -1191,8 +1191,8 @@ lnet_find_route_locked(lnet_ni_t *ni, lnet_nid_t target, lnet_nid_t rtr_nid)
* so we can round-robin all routers, it's race and inaccurate but
* harmless and functional
*/
if (rtr_best)
rtr_best->lr_seq = rtr_last->lr_seq + 1;
if (best_route)
best_route->lr_seq = last_route->lr_seq + 1;
return lp_best;
}