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| author | Hans Petter Selasky <hselasky@FreeBSD.org> | 2017-05-31 21:05:24 +0000 |
|---|---|---|
| committer | Hans Petter Selasky <hselasky@FreeBSD.org> | 2017-05-31 21:05:24 +0000 |
| commit | 9a83b0971e6fc935a65feee3b0e2407a89ccc4bd (patch) | |
| tree | 663d41ab120e17749679710f7b588123a657ce41 | |
| parent | 6166fdcebcfd4c62bb91ad81bf486a07041e94b9 (diff) | |
| download | src-9a83b0971e6fc935a65feee3b0e2407a89ccc4bd.tar.gz src-9a83b0971e6fc935a65feee3b0e2407a89ccc4bd.zip | |
Minor code optimisation.
Avoid locking the global CUSE lock when the polling flags are zero.
MFC after: 1 week
Notes
Notes:
svn path=/head/; revision=319355
| -rw-r--r-- | sys/fs/cuse/cuse.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/fs/cuse/cuse.c b/sys/fs/cuse/cuse.c index 33d36c586e2b..79a2d1b2d020 100644 --- a/sys/fs/cuse/cuse.c +++ b/sys/fs/cuse/cuse.c @@ -1507,8 +1507,8 @@ cuse_client_kqfilter_poll(struct cdev *dev, struct cuse_client *pcc) /* 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 cuse_client *pcc) /* make sure the "knote" gets woken up */ cuse_server_wakeup_locked(pcc->server); + cuse_unlock(); } - cuse_unlock(); } } |