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RDMA/rtrs-clt: Kill wait_for_inflight_permits

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[ Upstream commit 25a033f5a7 ]

Let's wait the inflight permits before free it.

Link: https://lore.kernel.org/r/20201217141915.56989-10-jinpu.wang@cloud.ionos.com
Signed-off-by: Guoqing Jiang <guoqing.jiang@cloud.ionos.com>
Reviewed-by: Md Haris Iqbal <haris.iqbal@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Guoqing Jiang 2020-12-17 15:19:05 +01:00 committed by Greg Kroah-Hartman
parent 8260f1800f
commit b0ecf9e594
1 changed files with 6 additions and 11 deletions
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17
drivers/infiniband/ulp/rtrs/rtrs-clt.c
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@ -1328,6 +1328,12 @@ static int alloc_permits(struct rtrs_clt *clt)
static void free_permits(struct rtrs_clt *clt) static void free_permits(struct rtrs_clt *clt)
{ {
if (clt->permits_map) {
size_t sz = clt->queue_depth;
wait_event(clt->permits_wait,
find_first_bit(clt->permits_map, sz) >= sz);
}
kfree(clt->permits_map); kfree(clt->permits_map);
clt->permits_map = NULL; clt->permits_map = NULL;
kfree(clt->permits); kfree(clt->permits);
@ -2630,19 +2636,8 @@ static struct rtrs_clt *alloc_clt(const char *sessname, size_t paths_num,
return ERR_PTR(err); return ERR_PTR(err);
} }
static void wait_for_inflight_permits(struct rtrs_clt *clt)
{
if (clt->permits_map) {
size_t sz = clt->queue_depth;
wait_event(clt->permits_wait,
find_first_bit(clt->permits_map, sz) >= sz);
}
}
static void free_clt(struct rtrs_clt *clt) static void free_clt(struct rtrs_clt *clt)
{ {
wait_for_inflight_permits(clt);
free_permits(clt); free_permits(clt);
free_percpu(clt->pcpu_path); free_percpu(clt->pcpu_path);