diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/lockd/svclock.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c index 3b0e7a4b817b..f2449265e2eb 100644 --- a/fs/lockd/svclock.c +++ b/fs/lockd/svclock.c @@ -331,6 +331,31 @@ static void nlmsvc_freegrantargs(struct nlm_rqst *call) } /* + * Deferred lock request handling for non-blocking lock + */ +static u32 +nlmsvc_defer_lock_rqst(struct svc_rqst *rqstp, struct nlm_block *block) +{ + u32 status = nlm_lck_denied_nolocks; + + block->b_flags |= B_QUEUED; + + nlmsvc_insert_block(block, NLM_TIMEOUT); + + block->b_cache_req = &rqstp->rq_chandle; + if (rqstp->rq_chandle.defer) { + block->b_deferred_req = + rqstp->rq_chandle.defer(block->b_cache_req); + if (block->b_deferred_req != NULL) + status = nlm_drop_reply; + } + dprintk("lockd: nlmsvc_defer_lock_rqst block %p flags %d status %d\n", + block, block->b_flags, status); + + return status; +} + +/* * Attempt to establish a lock, and if it can't be granted, block it * if required. */ |