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authorSean Hefty <sean.hefty@intel.com>2007-04-05 10:49:51 -0700
committerRoland Dreier <rolandd@cisco.com>2007-04-24 16:31:11 -0700
commitd92f76448c1a3e40ff3df96a653ecd83aeac6ee7 (patch)
tree4a1674c45cb1d4c4bee4e6f52f39b7b9a8b9aca1 /drivers/infiniband
parent30c00986f3a610cdcee2602b8254c3ffa6cddc04 (diff)
downloadlinux-d92f76448c1a3e40ff3df96a653ecd83aeac6ee7.tar.bz2
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/infiniband')
-rw-r--r--drivers/infiniband/core/ucma.c22
1 files changed, 7 insertions, 15 deletions
diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
index c859134c1daa..53b4c94a7eb5 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) {