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Replace references to VOP_LOCK() w/o LK_RETRY to vn_lock() with LK_RETRY,

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avoiding extra error handling, or in some cases, missing error handling.

MFC after:	3 days
Discussed with:	kib
This commit is contained in:
rwatson 2008-01-21 21:19:07 +00:00
parent 83affd5c84
commit a718996964
1 changed files with 4 additions and 14 deletions
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18
sys/fs/coda/coda_vnops.c
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@ -926,19 +926,14 @@ coda_lookup(struct vop_lookup_args *ap)
* lock it without bothering to check anything else.
*/
if (*ap->a_vpp) {
if ((error = VOP_LOCK(*ap->a_vpp, LK_EXCLUSIVE))) {
vn_lock(dvp, LK_RETRY|LK_EXCLUSIVE);
return (error);
}
vn_lock(*ap->a_vpp, LK_EXCLUSIVE | LK_RETRY);
}
vn_lock(dvp, LK_RETRY|LK_EXCLUSIVE);
} else {
/* The parent is locked, and may be the same as the child */
if (*ap->a_vpp && (*ap->a_vpp != dvp)) {
/* Different, go ahead and lock it. */
if ((error = VOP_LOCK(*ap->a_vpp, LK_EXCLUSIVE))) {
return (error);
}
vn_lock(*ap->a_vpp, LK_EXCLUSIVE | LK_RETRY);
}
}
} else {
@ -1022,10 +1017,7 @@ coda_create(struct vop_create_args *ap)
if (!error) {
if (cnp->cn_flags & LOCKLEAF) {
if ((error = VOP_LOCK(*ap->a_vpp, LK_EXCLUSIVE))) {
printf("coda_create: ");
panic("unlocked parent but couldn't lock child");
}
vn_lock(*ap->a_vpp, LK_EXCLUSIVE | LK_RETRY);
}
#ifdef OLD_DIAGNOSTIC
else {
@ -1289,9 +1281,7 @@ coda_mkdir(struct vop_mkdir_args *ap)
/* Invalidate the parent's attr cache, the modification time has changed */
VTOC(dvp)->c_flags &= ~C_VATTR;
if ((error = VOP_LOCK(*vpp, LK_EXCLUSIVE))) {
panic("coda_create: couldn't lock child");
}
vn_lock(*vpp, LK_EXCLUSIVE | LK_RETRY);
CODADEBUG( CODA_MKDIR, myprintf(("mkdir: %s result %d\n",
coda_f2s(&VFid), error)); )