Date: Sun, 18 Jun 2017 18:09:31 +0000 (UTC) From: Hans Petter Selasky <hselasky@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r320075 - stable/11/sys/fs/cuse Message-ID: <201706181809.v5II9VSD074932@repo.freebsd.org>
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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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