Bug 902174

Summary:	Race condition in unlink
Product:	[Community] GlusterFS	Reporter:	Raghavendra G <rgowdapp>
Component:	quick-read	Assignee:	Raghavendra G <rgowdapp>
Status:	CLOSED CURRENTRELEASE	QA Contact:
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	3.3.0	CC:	amarts, gluster-bugs
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Hardware:	Unspecified
OS:	Unspecified
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Fixed In Version:	glusterfs-3.4.0	Doc Type:	Bug Fix
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Last Closed:	2013-07-24 17:12:56 UTC	Type:	Bug
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Raghavendra G 2013-01-21 05:20:52 UTC

Description of problem:

found this problem during code review. In qr_unlink, local->open_count is incremented by holding inode->lock. However, the same is decremented in qr_unlink_helper by holding a different lock (local->lock). This can result in a race-condition possibly leading to memory corruptions and other issues.

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Comment 1 Vijay Bellur 2013-02-07 22:41:53 UTC

CHANGE: http://review.gluster.org/4396 (performance/quick-read: fix race condition in unlink) merged in release-3.3 by Anand Avati (avati)