SUNRPC: minor optimization of "xid" field in rpc_xprt (e744cf2e) · Commits · 戴 / test

Move the xid field in the rpc_xprt structure to be in the same cache line as the reserve_lock, since these are used at the same time. Test plan: None. Signed-off-by:

Chuck Lever <chuck.lever@oracle.com> Signed-off-by:

Trond Myklebust <Trond.Myklebust@netapp.com>

include/linux/sunrpc/xprt.h

+1 −6

Original line number	Diff line number	Diff line
		@@ -157,11 +157,6 @@ struct rpc_xprt {
		unsigned char shutdown : 1, /* being shut down */
		resvport : 1; /* use a reserved port */

		/*
		* XID
		*/
		__u32 xid; /* Next XID value to use */

		/*
		* State of TCP reply receive stuff
		*/
		@@ -193,8 +188,8 @@ struct rpc_xprt {
		*/
		spinlock_t transport_lock; /* lock transport info */
		spinlock_t reserve_lock; /* lock slot table */
		u32 xid; /* Next XID value to use */
		struct rpc_task * snd_task; /* Task blocked in send */

		struct list_head recv;

		struct {

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