From 4f1d756def68588b88068af1d5a4a3b6dc7e6e2a Mon Sep 17 00:00:00 2001 From: Xiubo Li Date: Tue, 30 Jun 2020 03:52:16 -0400 Subject: ceph: add global total_caps to count the mdsc's total caps number This will help to reduce using the global mdsc->mutex lock in many places. Signed-off-by: Xiubo Li Reviewed-by: Jeff Layton Signed-off-by: Ilya Dryomov --- fs/ceph/caps.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'fs/ceph/caps.c') diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c index 972c13aa4225..5f4894063a73 100644 --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -668,6 +668,7 @@ void ceph_add_cap(struct inode *inode, spin_lock(&session->s_cap_lock); list_add_tail(&cap->session_caps, &session->s_caps); session->s_nr_caps++; + atomic64_inc(&mdsc->metric.total_caps); spin_unlock(&session->s_cap_lock); } else { spin_lock(&session->s_cap_lock); @@ -1161,6 +1162,7 @@ void __ceph_remove_cap(struct ceph_cap *cap, bool queue_release) } else { list_del_init(&cap->session_caps); session->s_nr_caps--; + atomic64_dec(&mdsc->metric.total_caps); cap->session = NULL; removed = 1; } -- cgit v1.2.3