rpms/kernel/devel linux-2.6-autofs-invalidate.patch, NONE, 1.1 kernel-2.6.spec, 1.2269, 1.2270

[fedora-cvs-commits at redhat.com]

Author: davej

Update of /cvs/dist/rpms/kernel/devel
In directory cvs.devel.redhat.com:/tmp/cvs-serv29599

Modified Files:
	kernel-2.6.spec 
Added Files:
	linux-2.6-autofs-invalidate.patch 
Log Message:
autofs4 - need to invalidate children on tree mount expire


linux-2.6-autofs-invalidate.patch:
 expire.c |    6 ++++++
 1 files changed, 6 insertions(+)

--- NEW FILE linux-2.6-autofs-invalidate.patch ---

From: Ian Kent <raven at themaw.net>
To: Andrew Morton <akpm at osdl.org>
Cc: autofs mailing list <autofs at linux.kernel.org>, Kernel Mailing List
<linux-kernel at vger.kernel.org>, linux-fsdevel
<linux-fsdevel at vger.kernel.org>
Subject: [PATCH] autofs4 - need to invalidate children on tree mount expire
Date: Mon, 12 Jun 2006 14:52:45 +0800 (WST)

Hi Andrew,

I've found a case where invalid dentrys in a mount tree, waiting to be 
cleaned up by d_invalidate, prevent the expected expire.

In this case dentrys created during a lookup for which a mount fails or 
has no entry in the mount map contribute to the d_count of the parent 
dentry. These dentrys may not be invalidated prior to comparing the 
interanl usage count of valid autofs dentrys against the dentry d_count 
which makes a mount tree appear busy so it doesn't expire.

Signed-off-by: Ian Kent <raven at themaw.net>

--

--- linux-2.6.17-rc6-mm2/fs/autofs4/expire.c.need-invalidate-on-tree-expire	2006-06-12 14:24:21.000000000 +0800
+++ linux-2.6.17-rc6-mm2/fs/autofs4/expire.c	2006-06-12 14:24:36.000000000 +0800
@@ -174,6 +174,12 @@ static int autofs4_tree_busy(struct vfsm
 			struct autofs_info *ino = autofs4_dentry_ino(p);
 			unsigned int ino_count = atomic_read(&ino->count);
 
+			/*
+			 * Clean stale dentries below that have not been
+			 * invalidated after a mount fail during lookup
+			 */
+			d_invalidate(p);
+
 			/* allow for dget above and top is already dgot */
 			if (p == top)
 				ino_count += 2;



Index: kernel-2.6.spec
===================================================================
RCS file: /cvs/dist/rpms/kernel/devel/kernel-2.6.spec,v
retrieving revision 1.2269
retrieving revision 1.2270
diff -u -r1.2269 -r1.2270
--- kernel-2.6.spec	12 Jun 2006 13:04:19 -0000	1.2269
+++ kernel-2.6.spec	12 Jun 2006 16:45:53 -0000	1.2270
@@ -378,6 +378,7 @@
 Patch1660: linux-2.6-valid-ether-addr.patch
 Patch1670: linux-2.6-softcursor-persistent-alloc.patch
 Patch1680: linux-2.6-usb-unusual-devices.patch
+Patch1690: linux-2.6-autofs-invalidate.patch
 Patch1700: linux-2.6-w1-hush-debug.patch
 Patch1710: linux-2.6-sched-up-migration-cost.patch
 Patch1720: linux-2.6-proc-self-maps-fix.patch
@@ -1035,6 +1036,8 @@
 %patch1670 -p1
 # Add some USB devices to the unusual quirk list.
 %patch1680 -p1
+# autofs4 - need to invalidate children on tree mount expire
+%patch1690 -p1
 # Silence debug messages in w1
 %patch1700 -p1
 # Only print migration info on SMP
@@ -1821,6 +1824,7 @@
 %changelog
 * Mon Jun 12 2006 Dave Jones <davej at redhat.com>
 - 2.6.17-rc6-git3
+- autofs4 - need to invalidate children on tree mount expire
 
 * Sun Jun 11 2006 Dave Jones <davej at redhat.com>
 - 2.6.17-rc6-git2