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IB/srp: Document locking conventions

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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>
This commit is contained in:
Bart Van Assche 2017-02-14 10:56:32 -08:00 committed by Doug Ledford
parent 0a6fdbdeb1
commit 93c76dbb74
1 changed files with 5 additions and 0 deletions
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5
drivers/infiniband/ulp/srp/ib_srp.c
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@ -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);
}