ceph: close holes in structs ceph_mds_session and ceph_mds_request
Move s_ref up to plug a 4 byte hole, which plugs another.
Move r_kref to shave 8 bytes off per request on x86_64.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h
index c950f8f..27a7446 100644
--- a/fs/ceph/mds_client.h
+++ b/fs/ceph/mds_client.h
@@ -184,6 +184,7 @@ struct ceph_mds_session {
/* protected by s_cap_lock */
spinlock_t s_cap_lock;
+ refcount_t s_ref;
struct list_head s_caps; /* all caps issued by this session */
struct ceph_cap *s_cap_iterator;
int s_nr_caps;
@@ -198,7 +199,6 @@ struct ceph_mds_session {
unsigned long s_renew_requested; /* last time we sent a renew req */
u64 s_renew_seq;
- refcount_t s_ref;
struct list_head s_waiting; /* waiting requests */
struct list_head s_unsafe; /* unsafe requests */
};
@@ -234,6 +234,7 @@ struct ceph_mds_request {
struct rb_node r_node;
struct ceph_mds_client *r_mdsc;
+ struct kref r_kref;
int r_op; /* mds op code */
/* operation on what? */
@@ -304,7 +305,6 @@ struct ceph_mds_request {
int r_resend_mds; /* mds to resend to next, if any*/
u32 r_sent_on_mseq; /* cap mseq request was sent at*/
- struct kref r_kref;
struct list_head r_wait;
struct completion r_completion;
struct completion r_safe_completion;