Bug 595907 - Add padding field to request_list structure
Add padding field to request_list structure
Status: CLOSED CURRENTRELEASE
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: kernel (Show other bugs)
6.0
All Linux
low Severity medium
: rc
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Assigned To: Vivek Goyal
Mike Gahagan
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Depends On:
Blocks:
  Show dependency treegraph
 
Reported: 2010-05-25 17:44 EDT by Vivek Goyal
Modified: 2010-11-10 15:55 EST (History)
3 users (show)

See Also:
Fixed In Version: kernel-2.6.32-32.el6
Doc Type: Bug Fix
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Last Closed: 2010-11-10 15:55:10 EST
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RHEL 7.3 requirements from Atomic Host:
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Description Vivek Goyal 2010-05-25 17:44:04 EDT
Description of problem:

Add a padding field to request_list structure. I am expecting there will
be more development in IO controller in RHEL6 life cycle and this structure
should get modified for per group request descriptors and that will break
kABI.

So adding padding can help backporting new functionality at the same time
preserve kabi.

Version-Release number of selected component (if applicable):


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Comment 3 RHEL Product and Program Management 2010-06-01 17:06:15 EDT
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux major release.  Product Management has requested further
review of this request by Red Hat Engineering, for potential inclusion in a Red
Hat Enterprise Linux Major release.  This request is not yet committed for
inclusion.
Comment 4 Aristeu Rozanski 2010-06-03 16:00:56 EDT
Patch(es) available on kernel-2.6.32-32.el6
Comment 7 Mike Gahagan 2010-10-06 15:48:31 EDT
Confirmed we have redhat_reserved padding in the request_list structure (include/linux/blkdev.h)
Comment 8 releng-rhel@redhat.com 2010-11-10 15:55:10 EST
Red Hat Enterprise Linux 6.0 is now available and should resolve
the problem described in this bug report. This report is therefore being closed
with a resolution of CURRENTRELEASE. You may reopen this bug report if the
solution does not work for you.

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