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| author | Bart Van Assche <bart.vanassche@sandisk.com> | 2017-02-14 10:56:32 -0800 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-02-19 09:51:53 -0500 |
| commit | 93c76dbb749eb0c791c2680f8fdaeae51240fdf5 (patch) | |
| tree | 72eb82c580f706fa4eed4c6f6ae99a5ba0f6c0b1 /drivers/infiniband | |
| parent | 0a6fdbdeb1c25e31763c1fb333fa2723a7d2aba6 (diff) | |
| download | lwn-93c76dbb749eb0c791c2680f8fdaeae51240fdf5.tar.gz lwn-93c76dbb749eb0c791c2680f8fdaeae51240fdf5.zip | |
IB/srp: Document locking conventions
Use lockdep_assert_held() statements to verify at run-time
whether the proper locks are held.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Israel Rukshin <israelr@mellanox.com>
Cc: Max Gurtovoy <maxg@mellanox.com>
Cc: Laurence Oberman <loberman@redhat.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/ulp/srp/ib_srp.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index d9b57f5958b5..862ee2ff5bb9 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -40,6 +40,7 @@ #include <linux/parser.h> #include <linux/random.h> #include <linux/jiffies.h> +#include <linux/lockdep.h> #include <rdma/ib_cache.h> #include <linux/atomic.h> @@ -1799,6 +1800,8 @@ static struct srp_iu *__srp_get_tx_iu(struct srp_rdma_ch *ch, s32 rsv = (iu_type == SRP_IU_TSK_MGMT) ? 0 : SRP_TSK_MGMT_SQ_SIZE; struct srp_iu *iu; + lockdep_assert_held(&ch->lock); + ib_process_cq_direct(ch->send_cq, -1); if (list_empty(&ch->free_tx)) @@ -1829,6 +1832,8 @@ static void srp_send_done(struct ib_cq *cq, struct ib_wc *wc) return; } + lockdep_assert_held(&ch->lock); + list_add(&iu->list, &ch->free_tx); } |