Bug 218476 - blktap needs zap_page_range() exported
Summary: blktap needs zap_page_range() exported
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kernel-xen
Version: 5.0
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
: ---
Assignee: Stephen Tweedie
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 218048
TreeView+ depends on / blocked
 
Reported: 2006-12-05 17:11 UTC by Stephen Tweedie
Modified: 2007-11-30 22:07 UTC (History)
1 user (show)

Fixed In Version: 5.0.0
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2007-01-26 21:18:49 UTC
Target Upstream Version:
Embargoed:

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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.
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