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From: Konstantin Belousov <kib@FreeBSD.org>
Date: Thu, 29 Oct 2009 16:28:21 +0000 (UTC)
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Cc: 
Subject: svn commit: r198614 - in stable/8/sys: . amd64/include/xen
	cddl/contrib/opensolaris contrib/dev/acpica contrib/pf
	dev/xen/xenpci kern
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Author: kib
Date: Thu Oct 29 16:28:21 2009
New Revision: 198614
URL: http://svn.freebsd.org/changeset/base/198614

Log:
  MFC r197930:
  Postpone dropping fp till both kq_global and kqueue mutexes are
  unlocked.

Modified:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)
  stable/8/sys/dev/xen/xenpci/   (props changed)
  stable/8/sys/kern/kern_event.c

Modified: stable/8/sys/kern/kern_event.c
==============================================================================
--- stable/8/sys/kern/kern_event.c	Thu Oct 29 16:24:39 2009	(r198613)
+++ stable/8/sys/kern/kern_event.c	Thu Oct 29 16:28:21 2009	(r198614)
@@ -909,13 +909,13 @@ findkn:
 
 	/* knote is in the process of changing, wait for it to stablize. */
 	if (kn != NULL && (kn->kn_status & KN_INFLUX) == KN_INFLUX) {
+		KQ_GLOBAL_UNLOCK(&kq_global, haskqglobal);
+		kq->kq_state |= KQ_FLUXWAIT;
+		msleep(kq, &kq->kq_lock, PSOCK | PDROP, "kqflxwt", 0);
 		if (fp != NULL) {
 			fdrop(fp, td);
 			fp = NULL;
 		}
-		KQ_GLOBAL_UNLOCK(&kq_global, haskqglobal);
-		kq->kq_state |= KQ_FLUXWAIT;
-		msleep(kq, &kq->kq_lock, PSOCK | PDROP, "kqflxwt", 0);
 		goto findkn;
 	}