Bug 400651 – GFS: wrong locking order in gfs_get_parent()

This service will be undergoing maintenance at 00:00 UTC, 2016-09-28. It is expected to last about 1 hours

Bug 400651 - GFS: wrong locking order in gfs_get_parent()

Summary:	GFS: wrong locking order in gfs_get_parent()

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 5
Classification:	Red Hat
Component:	gfs-kmod (Show other bugs)
Sub Component:
Version:	5.1
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Kiersten (Kerri) Anderson
QA Contact:	GFS Bugs
Docs Contact:

URL:
Whiteboard:
Keywords:

Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2007-11-27 04:53 EST by Vasily Averin
Modified:	2010-01-11 22:27 EST (History)
CC List:	2 users (show)

See Also:
Fixed In Version:	RHBA-2008-0348
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2008-05-21 11:37:18 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:

Attachments	(Terms of Use)
Fix wrong locking order in gfs_get_parent() (458 bytes, patch) 2007-11-27 04:53 EST, Vasily Averin	no flags	Details \| Diff
Add an attachment (proposed patch, testcase, etc.)

Groups: None (edit)

Description Vasily Averin 2007-11-27 04:53:21 EST

Dmitry Monakhov from OpenVZ linux kernel team reports about wrong locking order
in gfs_get_parent(). Almost all coresponding places was fixed in
gfs-kmod-0.1.19-7.el5, but gfs_get_parrent() was missed.

The problem is fixed by attached patch.

Comment 1 Vasily Averin 2007-11-27 04:53:21 EST

Created attachment 269561 [details]
Fix wrong locking order in gfs_get_parent()

Comment 2 Wendy Cheng 2007-11-27 10:06:53 EST

This is probably an oversight of mine while doing last round of NFS fixes.
Will check into this.

Comment 3 Wendy Cheng 2008-01-02 10:08:32 EST

Patch checked into CVS today - should be ready for RHEL 5.2.

Comment 4 Wendy Cheng 2008-01-02 10:10:17 EST

CVSROOT:	/cvs/cluster
Module name:	cluster
Branch: 	RHEL5
Changes by:	wcheng@sourceware.org	2008-01-02 15:07:07

Modified files:
	gfs-kernel/src/gfs: ops_export.c 

Log message:
        Dmitry Monakhov from OpenVZ linux kernel team reports about wrong
        locking order in gfs_get_parent(). Patch submitted by Vasily Averin
        (vvs@sw.ru) under Red Hat bugzilla 400651

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/cluster/gfs-kernel/src/gfs/ops_export.c.diff?cvsroot=cluster&only_with_tag=RHEL5&r1=1.8.2.3&r2=1.8.2.4

Comment 10 errata-xmlrpc 2008-05-21 11:37:18 EDT

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2008-0348.html

Note You need to log in before you can comment on or make changes to this bug.