[PATCH 1/4] rbd: release client list lock sooner

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



In rbd_get_client(), if a client is reused, a number of things
get done while still holding the list lock unnecessarily.

This just moves a few things that need no lock protection outside
the lock.

Signed-off-by: Alex Elder <elder@xxxxxxxxxxxxx>
---
 drivers/block/rbd.c |   10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 4c5bb39..4bf8300 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -383,13 +383,15 @@ static int rbd_get_client(struct rbd_device *rbd_dev, const char *mon_addr,
 	spin_lock(&node_lock);
 	rbdc = __rbd_client_find(opt);
 	if (rbdc) {
-		ceph_destroy_options(opt);
-		kfree(rbd_opts);
-
 		/* using an existing client */
 		kref_get(&rbdc->kref);
-		rbd_dev->rbd_client = rbdc;
 		spin_unlock(&node_lock);
+
+		rbd_dev->rbd_client = rbdc;
+
+		ceph_destroy_options(opt);
+		kfree(rbd_opts);
+
 		return 0;
 	}
 	spin_unlock(&node_lock);
--
1.7.5.4

--
To unsubscribe from this list: send the line "unsubscribe ceph-devel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [CEPH Users]     [Ceph Large]     [Information on CEPH]     [Linux BTRFS]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]
  Powered by Linux