Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.

For bugs related to Red Hat Enterprise Linux 5 product line. The current stable release is 5.10. For Red Hat Enterprise Linux 6 and above, please visit Red Hat JIRA https://issues.redhat.com/secure/CreateIssue!default.jspa?pid=12332745 to report new issues.

Bug 218476

Summary:	blktap needs zap_page_range() exported
Product:	Red Hat Enterprise Linux 5	Reporter:	Stephen Tweedie <sct>
Component:	kernel-xen	Assignee:	Stephen Tweedie <sct>
Status:	CLOSED CURRENTRELEASE	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	5.0	CC:	xen-maint
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	5.0.0	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2007-01-26 21:18:49 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	218048

Description Stephen Tweedie 2006-12-05 17:11:04 UTC

Description of problem:
The blktap backend needs zap_page_range() exported: it uses this to clear its
guest mappings during driver shutdown.

Current RHEL-5 has 
  EXPORT_SYMBOL(zap_page_range)
as an implicit part of the PV-FB patch.  But the new upstream PV-FB does not
have that, and blktap still needs it.

So updating the blktap patch will break PV-FB.

So we need to move that chunk from the PV-FB patch to the blktap-fixes patch in
order to preserve it.

Version-Release number of selected component (if applicable):
kernel-2.6.18-1.2817.el5

Comment 3 Jay Turner 2006-12-06 22:54:01 UTC

QE ack for RHEL5.

Comment 4 Don Zickus 2006-12-18 02:48:50 UTC

in 2.6.18-1.2910.el5

Comment 5 Don Zickus 2006-12-18 17:45:48 UTC

ignore previous useless comment
in 2.6.18-1.2910.el5

Comment 6 Jay Turner 2007-01-26 21:18:49 UTC

2.6.18-7.el5 included in 20070125.0.