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Diffstat (limited to 'sys/coda/coda_psdev.c')
-rw-r--r--sys/coda/coda_psdev.c112
1 files changed, 27 insertions, 85 deletions
diff --git a/sys/coda/coda_psdev.c b/sys/coda/coda_psdev.c
index 0d29f6e1d737..3abbff04878a 100644
--- a/sys/coda/coda_psdev.c
+++ b/sys/coda/coda_psdev.c
@@ -27,7 +27,7 @@
* Mellon the rights to redistribute these changes without encumbrance.
*
* @(#) src/sys/coda/coda_psdev.c,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
- * $Id: coda_psdev.c,v 1.9 1998/11/11 20:32:20 rvb Exp $
+ * $Id: coda_psdev.c,v 1.6 1998/09/28 20:52:58 rvb Exp $
*
*/
@@ -53,25 +53,6 @@
/*
* HISTORY
* $Log: coda_psdev.c,v $
- * Revision 1.9 1998/11/11 20:32:20 rvb
- * coda_lookup now passes up an extra flag. But old veni will
- * be ok; new veni will check /dev/cfs0 to make sure that a new
- * kernel is running.
- * Also, a bug in vc_nb_close iff CODA_SIGNAL's were seen has been
- * fixed.
- *
- * Revision 1.8 1998/10/28 20:31:13 rvb
- * Change the way unmounting happens to guarantee that the
- * client programs are allowed to finish up (coda_call is
- * forced to complete) and release their locks. Thus there
- * is a reasonable chance that the vflush implicit in the
- * unmount will not get hung on held locks.
- *
- * Revision 1.7 1998/09/29 20:19:45 rvb
- * Fixes for lkm:
- * 1. use VFS_LKM vs ACTUALLY_LKM_NOT_KERNEL
- * 2. don't pass -DCODA to lkm build
- *
* Revision 1.6 1998/09/28 20:52:58 rvb
* Cleanup and fix THE bug
*
@@ -188,7 +169,11 @@
extern int coda_nc_initialized; /* Set if cache has been initialized */
+#ifdef VFS_LKM
+#define NVCODA 4
+#else
#include <vcoda.h>
+#endif
#include <sys/param.h>
#include <sys/systm.h>
@@ -210,13 +195,6 @@ extern int coda_nc_initialized; /* Set if cache has been initialized */
#define CTL_C
int coda_psdev_print_entry = 0;
-static
-int outstanding_upcalls = 0;
-int coda_call_sleep = PZERO - 1;
-#ifdef CTL_C
-int coda_pcatch = PCATCH;
-#else
-#endif
#define ENTRY if(coda_psdev_print_entry) myprintf(("Entered %s\n",__FUNCTION__))
@@ -284,7 +262,7 @@ vc_nb_close (dev, flag, mode, p)
struct proc *p;
{
register struct vcomm *vcp;
- register struct vmsg *vmp, *nvmp = NULL;
+ register struct vmsg *vmp;
struct coda_mntinfo *mi;
int err;
@@ -305,23 +283,21 @@ vc_nb_close (dev, flag, mode, p)
* Put this before WAKEUPs to avoid queuing new messages between
* the WAKEUP and the unmount (which can happen if we're unlucky)
*/
- if (!mi->mi_rootvp) {
- /* just a simple open/close w no mount */
- MARK_VC_CLOSED(vcp);
- return 0;
+ if (mi->mi_rootvp) {
+ /* Let unmount know this is for real */
+ VTOC(mi->mi_rootvp)->c_flags |= C_UNMOUNTING;
+ coda_unmounting(mi->mi_vfsp);
+ err = dounmount(mi->mi_vfsp, flag, p);
+ if (err)
+ myprintf(("Error %d unmounting vfs in vcclose(%d)\n",
+ err, minor(dev)));
}
-
- /* Let unmount know this is for real */
- VTOC(mi->mi_rootvp)->c_flags |= C_UNMOUNTING;
- coda_unmounting(mi->mi_vfsp);
-
- outstanding_upcalls = 0;
+
/* Wakeup clients so they can return. */
for (vmp = (struct vmsg *)GETNEXT(vcp->vc_requests);
!EOQ(vmp, vcp->vc_requests);
- vmp = nvmp)
- {
- nvmp = (struct vmsg *)GETNEXT(vmp->vm_chain);
+ vmp = (struct vmsg *)GETNEXT(vmp->vm_chain))
+ {
/* Free signal request messages and don't wakeup cause
no one is waiting. */
if (vmp->vm_opcode == CODA_SIGNAL) {
@@ -329,34 +305,18 @@ vc_nb_close (dev, flag, mode, p)
CODA_FREE((caddr_t)vmp, (u_int)sizeof(struct vmsg));
continue;
}
- outstanding_upcalls++;
+
wakeup(&vmp->vm_sleep);
}
-
+
for (vmp = (struct vmsg *)GETNEXT(vcp->vc_replys);
!EOQ(vmp, vcp->vc_replys);
vmp = (struct vmsg *)GETNEXT(vmp->vm_chain))
{
- outstanding_upcalls++;
wakeup(&vmp->vm_sleep);
}
-
+
MARK_VC_CLOSED(vcp);
-
- if (outstanding_upcalls) {
-#ifdef CODA_VERBOSE
- printf("presleep: outstanding_upcalls = %d\n", outstanding_upcalls);
- (void) tsleep(&outstanding_upcalls, coda_call_sleep, "coda_umount", 0);
- printf("postsleep: outstanding_upcalls = %d\n", outstanding_upcalls);
-#else
- (void) tsleep(&outstanding_upcalls, coda_call_sleep, "coda_umount", 0);
-#endif
- }
-
- err = dounmount(mi->mi_vfsp, flag, p);
- if (err)
- myprintf(("Error %d unmounting vfs in vcclose(%d)\n",
- err, minor(dev)));
return 0;
}
@@ -546,22 +506,6 @@ vc_nb_ioctl(dev, cmd, addr, flag, p)
return(ENODEV);
}
break;
- case CIOC_KERNEL_VERSION:
- switch (*(u_int *)addr) {
- case 0:
- *(u_int *)addr = coda_kernel_version;
- return 0;
- break;
- case 1:
- case 2:
- if (coda_kernel_version != *(u_int *)addr)
- return ENOENT;
- else
- return 0;
- default:
- return ENOENT;
- }
- break;
default :
return(EINVAL);
break;
@@ -610,6 +554,12 @@ struct coda_clstat coda_clstat;
* (e.g. kill -9).
*/
+int coda_call_sleep = PZERO - 1;
+#ifdef CTL_C
+int coda_pcatch = PCATCH;
+#else
+#endif
+
int
coda_call(mntinfo, inSize, outSize, buffer)
struct coda_mntinfo *mntinfo; int inSize; int *outSize; caddr_t buffer;
@@ -687,11 +637,6 @@ coda_call(mntinfo, inSize, outSize, buffer)
#ifdef CODA_VERBOSE
printf("coda_call: tsleep returns %d SIGIO, cnt %d\n", error, i);
#endif
- } else if (p->p_siglist == sigmask(SIGALRM)) {
- p->p_sigmask |= p->p_siglist;
-#ifdef CODA_VERBOSE
- printf("coda_call: tsleep returns %d SIGALRM, cnt %d\n", error, i);
-#endif
} else {
printf("coda_call: tsleep returns %d, cnt %d\n", error, i);
printf("coda_call: siglist = %x, sigmask = %x, mask %x\n",
@@ -705,7 +650,7 @@ coda_call(mntinfo, inSize, outSize, buffer)
p->p_siglist & ~p->p_sigmask);
#endif
}
- } while (error && i++ < 128 && VC_OPEN(vcp));
+ } while (error && i++ < 128);
p->p_sigmask = psig_omask;
#else
(void) tsleep(&vmp->vm_sleep, coda_call_sleep, "coda_call", 0);
@@ -779,9 +724,6 @@ coda_call(mntinfo, inSize, outSize, buffer)
CODA_FREE(vmp, sizeof(struct vmsg));
- if (outstanding_upcalls > 0 && (--outstanding_upcalls == 0))
- wakeup(&outstanding_upcalls);
-
if (!error)
error = ((struct coda_out_hdr *)buffer)->result;
return(error);
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-11 02:18:38 +0000