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Fix vnode locking, must lock for VOP_OPEN() and VOP_UNLOCK() when done.

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This commit is contained in:
hannken 2019-02-20 10:04:28 +00:00
parent 836873044c
commit 8d939a9270
1 changed files with 9 additions and 6 deletions
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15
sys/dev/raidframe/rf_netbsdkintf.c
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@ -1,4 +1,4 @@
/* $NetBSD: rf_netbsdkintf.c,v 1.374 2019/02/09 03:34:00 christos Exp $ */
/* $NetBSD: rf_netbsdkintf.c,v 1.375 2019/02/20 10:04:28 hannken Exp $ */
/*-
* Copyright (c) 1996, 1997, 1998, 2008-2011 The NetBSD Foundation, Inc.
@ -101,7 +101,7 @@
***********************************************************/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: rf_netbsdkintf.c,v 1.374 2019/02/09 03:34:00 christos Exp $");
__KERNEL_RCSID(0, "$NetBSD: rf_netbsdkintf.c,v 1.375 2019/02/20 10:04:28 hannken Exp $");
#ifdef _KERNEL_OPT
#include "opt_raid_autoconfig.h"
@ -2838,6 +2838,7 @@ rf_find_raid_components(void)
if (bdevvp(dev, &vp))
panic("RAID can't alloc vnode");
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
error = VOP_OPEN(vp, FREAD | FSILENT, NOCRED);
if (error) {
@ -2858,7 +2859,6 @@ rf_find_raid_components(void)
printf("RAIDframe: can't get disk size"
" for dev %s (%d)\n",
device_xname(dv), error);
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
VOP_CLOSE(vp, FREAD | FWRITE, NOCRED);
vput(vp);
continue;
@ -2870,19 +2870,18 @@ rf_find_raid_components(void)
if (error) {
printf("RAIDframe: can't get wedge info for "
"dev %s (%d)\n", device_xname(dv), error);
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
VOP_CLOSE(vp, FREAD | FWRITE, NOCRED);
vput(vp);
continue;
}
if (strcmp(dkw.dkw_ptype, DKW_PTYPE_RAIDFRAME) != 0) {
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
VOP_CLOSE(vp, FREAD | FWRITE, NOCRED);
vput(vp);
continue;
}
VOP_UNLOCK(vp);
ac_list = rf_get_component(ac_list, dev, vp,
device_xname(dv), dkw.dkw_size, numsecs, secsize);
rf_part_found = 1; /*There is a raid component on this disk*/
@ -2903,7 +2902,6 @@ rf_find_raid_components(void)
/* don't need this any more. We'll allocate it again
a little later if we really do... */
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
VOP_CLOSE(vp, FREAD | FWRITE, NOCRED);
vput(vp);
@ -2922,12 +2920,14 @@ rf_find_raid_components(void)
if (bdevvp(dev, &vp))
panic("RAID can't alloc vnode");
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
error = VOP_OPEN(vp, FREAD, NOCRED);
if (error) {
/* Whatever... */
vput(vp);
continue;
}
VOP_UNLOCK(vp);
snprintf(cname, sizeof(cname), "%s%c",
device_xname(dv), 'a' + i);
ac_list = rf_get_component(ac_list, dev, vp, cname,
@ -2949,12 +2949,15 @@ rf_find_raid_components(void)
if (bdevvp(dev, &vp))
panic("RAID can't alloc vnode");
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
error = VOP_OPEN(vp, FREAD, NOCRED);
if (error) {
/* Whatever... */
vput(vp);
continue;
}
VOP_UNLOCK(vp);
snprintf(cname, sizeof(cname), "%s%c",
device_xname(dv), 'a' + RAW_PART);
ac_list = rf_get_component(ac_list, dev, vp, cname,