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Print vnode details when vnode locking assertion gets triggered.

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MFC after:	1 month
This commit is contained in:
Edward Tomasz Napierala 2016-08-12 22:20:52 +00:00
parent 23ac9029f9
commit f83cc0aae4
1 changed files with 6 additions and 0 deletions
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6
sys/kern/vfs_subr.c
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@ -4402,6 +4402,10 @@ int vfs_badlock_print = 1; /* Print lock violations. */
SYSCTL_INT(_debug, OID_AUTO, vfs_badlock_print, CTLFLAG_RW, &vfs_badlock_print,
0, "Print lock violations");
int vfs_badlock_vnode = 1; /* Print vnode details on lock violations. */
SYSCTL_INT(_debug, OID_AUTO, vfs_badlock_vnode, CTLFLAG_RW, &vfs_badlock_vnode,
0, "Print vnode details on lock violations");
#ifdef KDB
int vfs_badlock_backtrace = 1; /* Print backtrace at lock violations. */
SYSCTL_INT(_debug, OID_AUTO, vfs_badlock_backtrace, CTLFLAG_RW,
@ -4416,6 +4420,8 @@ vfs_badlock(const char *msg, const char *str, struct vnode *vp)
if (vfs_badlock_backtrace)
kdb_backtrace();
#endif
if (vfs_badlock_vnode)
vn_printf(vp, "vnode ");
if (vfs_badlock_print)
printf("%s: %p %s\n", str, (void *)vp, msg);
if (vfs_badlock_ddb)