Author: hselasky
Date: Sun Jun 18 18:09:31 2017
New Revision: 320075
URL: https://svnweb.freebsd.org/changeset/base/320075
Log:
MFC r319355:
Minor code optimisation.
Avoid locking the global CUSE lock when the polling flags are zero.
Approved by: re (kib)
Modified:
stable/11/sys/fs/cuse/cuse.c
Directory Properties:
stable/11/ (props changed)
Modified: stable/11/sys/fs/cuse/cuse.c
==============================================================================
--- stable/11/sys/fs/cuse/cuse.c Sun Jun 18 17:26:54 2017
(r320074)
+++ stable/11/sys/fs/cuse/cuse.c Sun Jun 18 18:09:31 2017
(r320075)
@@ -1507,8 +1507,8 @@ cuse_client_kqfilter_poll(struct cdev *dev, struct cus
/* get the latest polling state from the server */
temp = cuse_client_poll(dev, POLLIN | POLLOUT, NULL);
- cuse_lock();
if (temp & (POLLIN | POLLOUT)) {
+ cuse_lock();
if (temp & POLLIN)
pcc->cflags |= CUSE_CLI_KNOTE_NEED_READ;
if (temp & POLLOUT)
@@ -1516,8 +1516,8 @@ cuse_client_kqfilter_poll(struct cdev *dev, struct cus
/* make sure the "knote" gets woken up */
cuse_server_wakeup_locked(pcc->server);
+ cuse_unlock();
}
- cuse_unlock();
}
}
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