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only do nfs rpc callouts if there is work to do.

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Submitted by:	kan
Approved by:	alfred
This commit is contained in:
Jim Rees 2004-03-25 21:48:09 +00:00
parent aaf3e5b065
commit f9955a5f53
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=127421
4 changed files with 14 additions and 11 deletions
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2
sys/nfsclient/nfs.h
View File

@ -136,7 +136,7 @@ MALLOC_DECLARE(M_NFSHASH);
extern struct uma_zone *nfsmount_zone;
extern struct callout_handle nfs_timer_handle;
extern struct callout nfs_callout;
extern struct nfsstats nfsstats;
extern int nfs_numasync;

7
sys/nfsclient/nfs_socket.c
View File

@ -140,7 +140,7 @@ SYSCTL_INT(_vfs_nfs, OID_AUTO, bufpackets, CTLFLAG_RW, &nfs_bufpackets, 0, "");
#define NFS_MAXCWND (NFS_CWNDSCALE * 32)
#define NFS_NBACKOFF 8
static int nfs_backoff[NFS_NBACKOFF] = { 2, 4, 8, 16, 32, 64, 128, 256, };
struct callout_handle nfs_timer_handle;
struct callout nfs_callout;
static int nfs_msg(struct thread *, char *, char *);
static int nfs_rcvlock(struct nfsreq *);
@ -938,6 +938,8 @@ nfs_request(struct vnode *vp, struct mbuf *mrest, int procnum,
* to put it LAST so timer finds oldest requests first.
*/
s = splsoftclock();
if (TAILQ_EMPTY(&nfs_reqq))
callout_reset(&nfs_callout, nfs_ticks, nfs_timer, NULL);
TAILQ_INSERT_TAIL(&nfs_reqq, rep, r_chain);
/*
@ -977,6 +979,8 @@ nfs_request(struct vnode *vp, struct mbuf *mrest, int procnum,
*/
s = splsoftclock();
TAILQ_REMOVE(&nfs_reqq, rep, r_chain);
if (TAILQ_EMPTY(&nfs_reqq))
callout_stop(&nfs_callout);
splx(s);
/*
@ -1184,7 +1188,6 @@ nfs_timer(void *arg)
}
}
splx(s);
nfs_timer_handle = timeout(nfs_timer, NULL, nfs_ticks);
}
/*

5
sys/nfsclient/nfs_subs.c
View File

@ -418,8 +418,7 @@ nfs_init(struct vfsconf *vfsp)
* Initialize reply list and start timer
*/
TAILQ_INIT(&nfs_reqq);
nfs_timer(0);
callout_init(&nfs_callout, 0);
nfs_prev_nfsclnt_sy_narg = sysent[SYS_nfsclnt].sy_narg;
sysent[SYS_nfsclnt].sy_narg = 2;
@ -435,7 +434,7 @@ int
nfs_uninit(struct vfsconf *vfsp)
{
untimeout(nfs_timer, (void *)NULL, nfs_timer_handle);
callout_stop(&nfs_callout);
sysent[SYS_nfsclnt].sy_narg = nfs_prev_nfsclnt_sy_narg;
sysent[SYS_nfsclnt].sy_call = nfs_prev_nfsclnt_sy_call;
return (0);

11
sys/rpc/rpcclnt.c
View File

@ -284,7 +284,6 @@ rpcclnt_init(void)
rpcclnt_timer(&rpcclnt_timer_to);
#else /* !__OpenBSD__ */
callout_init(&rpcclnt_callout, 0);
rpcclnt_timer(NULL);
#endif /* !__OpenBSD__ */
RPCDEBUG("rpc initialed");
@ -296,9 +295,8 @@ void
rpcclnt_uninit(void)
{
RPCDEBUG("uninit");
callout_stop(&rpcclnt_callout);
/* XXX delete sysctl variables? */
callout_stop(&rpcclnt_callout);
}
int
@ -1197,6 +1195,9 @@ rpcclnt_request(rpc, mrest, procnum, td, cred, reply)
* LAST so timer finds oldest requests first.
*/
s = splsoftclock();
if (TAILQ_EMPTY(&rpctask_q))
callout_reset(&rpcclnt_callout, rpcclnt_ticks, rpcclnt_timer,
NULL);
TAILQ_INSERT_TAIL(&rpctask_q, task, r_chain);
/*
@ -1238,6 +1239,8 @@ rpcclnt_request(rpc, mrest, procnum, td, cred, reply)
*/
s = splsoftclock();
TAILQ_REMOVE(&rpctask_q, task, r_chain);
if (TAILQ_EMPTY(&rpctask_q))
callout_stop(&rpcclnt_callout);
splx(s);
/*
@ -1475,8 +1478,6 @@ rpcclnt_timer(arg)
#ifdef __OpenBSD__
timeout_add(rpcclnt_timer, to, rpcclnt_ticks);
#else
callout_reset(&rpcclnt_callout, rpcclnt_ticks, rpcclnt_timer, NULL);
#endif
}