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Improve vn_printf() by:

Browse Source 
- adding missing vnode flags,
- printing unknown flags as numbers,
- using strlcat() instead of strcat().

Approved by:	re (bmah)
This commit is contained in:
pjd 2007-08-13 21:23:30 +00:00
parent 729445db78
commit 8d074382c8
1 changed files with 45 additions and 7 deletions
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52
sys/kern/vfs_subr.c
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@ -2563,7 +2563,8 @@ void
vn_printf(struct vnode *vp, const char *fmt, ...)
{
va_list ap;
char buf[96];
char buf[256], buf2[16];
u_long flags;
va_start(ap, fmt);
vprintf(fmt, ap);
@ -2575,17 +2576,54 @@ vn_printf(struct vnode *vp, const char *fmt, ...)
buf[0] = '\0';
buf[1] = '\0';
if (vp->v_vflag & VV_ROOT)
strcat(buf, "|VV_ROOT");
strlcat(buf, "|VV_ROOT", sizeof(buf));
if (vp->v_vflag & VV_ISTTY)
strlcat(buf, "|VV_ISTTY", sizeof(buf));
if (vp->v_vflag & VV_NOSYNC)
strlcat(buf, "|VV_NOSYNC", sizeof(buf));
if (vp->v_vflag & VV_CACHEDLABEL)
strlcat(buf, "|VV_CACHEDLABEL", sizeof(buf));
if (vp->v_vflag & VV_TEXT)
strcat(buf, "|VV_TEXT");
strlcat(buf, "|VV_TEXT", sizeof(buf));
if (vp->v_vflag & VV_COPYONWRITE)
strlcat(buf, "|VV_COPYONWRITE", sizeof(buf));
if (vp->v_vflag & VV_SYSTEM)
strcat(buf, "|VV_SYSTEM");
strlcat(buf, "|VV_SYSTEM", sizeof(buf));
if (vp->v_vflag & VV_PROCDEP)
strlcat(buf, "|VV_PROCDEP", sizeof(buf));
if (vp->v_vflag & VV_NOKNOTE)
strlcat(buf, "|VV_NOKNOTE", sizeof(buf));
if (vp->v_vflag & VV_DELETED)
strcat(buf, "|VV_DELETED");
strlcat(buf, "|VV_DELETED", sizeof(buf));
if (vp->v_vflag & VV_MD)
strlcat(buf, "|VV_MD", sizeof(buf));
flags = vp->v_vflag & ~(VV_ROOT | VV_ISTTY | VV_NOSYNC |
VV_CACHEDLABEL | VV_TEXT | VV_COPYONWRITE | VV_SYSTEM | VV_PROCDEP |
VV_NOKNOTE | VV_DELETED | VV_MD);
if (flags != 0) {
snprintf(buf2, sizeof(buf2), "|VV(0x%lx)", flags);
strlcat(buf, buf2, sizeof(buf));
}
if (vp->v_iflag & VI_MOUNT)
strlcat(buf, "|VI_MOUNT", sizeof(buf));
if (vp->v_iflag & VI_AGE)
strlcat(buf, "|VI_AGE", sizeof(buf));
if (vp->v_iflag & VI_DOOMED)
strcat(buf, "|VI_DOOMED");
strlcat(buf, "|VI_DOOMED", sizeof(buf));
if (vp->v_iflag & VI_FREE)
strcat(buf, "|VI_FREE");
strlcat(buf, "|VI_FREE", sizeof(buf));
if (vp->v_iflag & VI_OBJDIRTY)
strlcat(buf, "|VI_OBJDIRTY", sizeof(buf));
if (vp->v_iflag & VI_DOINGINACT)
strlcat(buf, "|VI_DOINGINACT", sizeof(buf));
if (vp->v_iflag & VI_OWEINACT)
strlcat(buf, "|VI_OWEINACT", sizeof(buf));
flags = vp->v_iflag & ~(VI_MOUNT | VI_AGE | VI_DOOMED | VI_FREE |
VI_OBJDIRTY | VI_DOINGINACT | VI_OWEINACT);
if (flags != 0) {
snprintf(buf2, sizeof(buf2), "|VI(0x%lx)", flags);
strlcat(buf, buf2, sizeof(buf));
}
printf(" flags (%s)\n", buf + 1);
if (mtx_owned(VI_MTX(vp)))
printf(" VI_LOCKed");