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| author | Sean Hefty <sean.hefty@intel.com> | 2007-04-05 10:49:51 -0700 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2007-04-24 16:31:11 -0700 |
| commit | d92f76448c1a3e40ff3df96a653ecd83aeac6ee7 (patch) | |
| tree | 4a1674c45cb1d4c4bee4e6f52f39b7b9a8b9aca1 /drivers | |
| parent | 30c00986f3a610cdcee2602b8254c3ffa6cddc04 (diff) | |
| download | op-kernel-dev-d92f76448c1a3e40ff3df96a653ecd83aeac6ee7.zip op-kernel-dev-d92f76448c1a3e40ff3df96a653ecd83aeac6ee7.tar.gz | |
RDMA/ucma: Simplify ucma_get_event()
Use wait_event_interruptible() instead of a more complicated
open-coded equivalent.
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/infiniband/core/ucma.c | 22 |
1 files changed, 7 insertions, 15 deletions
diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c index c859134..53b4c94 100644 --- a/drivers/infiniband/core/ucma.c +++ b/drivers/infiniband/core/ucma.c @@ -306,26 +306,18 @@ static ssize_t ucma_get_event(struct ucma_file *file, const char __user *inbuf, mutex_lock(&file->mut); while (list_empty(&file->event_list)) { - if (file->filp->f_flags & O_NONBLOCK) { - ret = -EAGAIN; - break; - } + mutex_unlock(&file->mut); - if (signal_pending(current)) { - ret = -ERESTARTSYS; - break; - } + if (file->filp->f_flags & O_NONBLOCK) + return -EAGAIN; + + if (wait_event_interruptible(file->poll_wait, + !list_empty(&file->event_list))) + return -ERESTARTSYS; - prepare_to_wait(&file->poll_wait, &wait, TASK_INTERRUPTIBLE); - mutex_unlock(&file->mut); - schedule(); mutex_lock(&file->mut); - finish_wait(&file->poll_wait, &wait); } - if (ret) - goto done; - uevent = list_entry(file->event_list.next, struct ucma_event, list); if (uevent->resp.event == RDMA_CM_EVENT_CONNECT_REQUEST) { |
