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This commit is contained in:
yamt 2003-05-07 16:18:17 +00:00
parent 319f2b1f1a
commit a4ae58105f
1 changed files with 32 additions and 30 deletions
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62
sys/nfs/nfs_syscalls.c
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@ -1,4 +1,4 @@
/* $NetBSD: nfs_syscalls.c,v 1.58 2003/04/09 14:22:33 yamt Exp $ */
/* $NetBSD: nfs_syscalls.c,v 1.59 2003/05/07 16:18:17 yamt Exp $ */
/*
* Copyright (c) 1989, 1993
@ -39,7 +39,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: nfs_syscalls.c,v 1.58 2003/04/09 14:22:33 yamt Exp $");
__KERNEL_RCSID(0, "$NetBSD: nfs_syscalls.c,v 1.59 2003/05/07 16:18:17 yamt Exp $");
#include "fs_nfs.h"
#include "opt_nfs.h"
@ -972,37 +972,39 @@ nfssvc_iod(l)
* Just loop around doing our stuff until SIGKILL
*/
for (;;) {
while (((nmp = myiod->nid_mount) == NULL
while (((nmp = myiod->nid_mount) == NULL
|| TAILQ_EMPTY(&nmp->nm_bufq)) && error == 0) {
if (nmp)
nmp->nm_bufqiods--;
myiod->nid_want = p;
myiod->nid_mount = NULL;
error = tsleep((caddr_t)&myiod->nid_want,
PWAIT | PCATCH, "nfsidl", 0);
}
while (nmp != NULL && (bp = TAILQ_FIRST(&nmp->nm_bufq)) != NULL) {
/* Take one off the front of the list */
TAILQ_REMOVE(&nmp->nm_bufq, bp, b_freelist);
nmp->nm_bufqlen--;
if (nmp->nm_bufqwant && nmp->nm_bufqlen < 2 * nfs_numasync) {
nmp->nm_bufqwant = FALSE;
wakeup(&nmp->nm_bufq);
if (nmp)
nmp->nm_bufqiods--;
myiod->nid_want = p;
myiod->nid_mount = NULL;
error = tsleep((caddr_t)&myiod->nid_want,
PWAIT | PCATCH, "nfsidl", 0);
}
(void) nfs_doio(bp, NULL);
/*
* If there are more than one iod on this mount, then defect
* so that the iods can be shared out fairly between the mounts
*/
if (nfs_defect && nmp->nm_bufqiods > 1) {
myiod->nid_mount = NULL;
nmp->nm_bufqiods--;
break;
while (nmp != NULL &&
(bp = TAILQ_FIRST(&nmp->nm_bufq)) != NULL) {
/* Take one off the front of the list */
TAILQ_REMOVE(&nmp->nm_bufq, bp, b_freelist);
nmp->nm_bufqlen--;
if (nmp->nm_bufqwant &&
nmp->nm_bufqlen < 2 * nfs_numasync) {
nmp->nm_bufqwant = FALSE;
wakeup(&nmp->nm_bufq);
}
(void) nfs_doio(bp, NULL);
/*
* If there are more than one iod on this mount, then defect
* so that the iods can be shared out fairly between the mounts
*/
if (nfs_defect && nmp->nm_bufqiods > 1) {
myiod->nid_mount = NULL;
nmp->nm_bufqiods--;
break;
}
}
if (error) {
break;
}
}
if (error) {
break;
}
}
PRELE(l);
if (nmp)