Bug 455452

Summary:	RFE: delalloc helpers for ext4
Product:	Red Hat Enterprise Linux 5	Reporter:	Eric Sandeen <esandeen>
Component:	kernel	Assignee:	Eric Sandeen <esandeen>
Status:	CLOSED ERRATA	QA Contact:	Martin Jenner <mjenner>
Severity:	low	Docs Contact:
Priority:	low
Version:	5.3	CC:	dzickus
Target Milestone:	rc
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2009-01-20 20:22:30 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:	447797

Description Eric Sandeen 2008-07-15 15:47:15 UTC

Although I don't currently plan to ship delalloc-enabled ext4 in the RHEL5.3
tech preview, it would be nice to have the minimal vfs/mm helpers in place in
the RHEL5.3 kernel for testing & future updates.

So this bug requests the addition of those changes for that support.

It's a minimal patch - current version is at:

http://repo.or.cz/w/ext4-patch-queue.git?a=blob;f=delalloc-vfs.patch;h=2d06314d140f921fc93e32ce87c31cd56afba60b;hb=HEAD

Thanks,
-Eric

Comment 1 RHEL Program Management 2008-07-15 16:03:43 UTC

This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release.  Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products.  This request is not yet committed for inclusion in an Update
release.

Comment 3 Eric Sandeen 2008-08-11 20:44:38 UTC

Adding to ext4 tracker.

The patch is a bit bigger than the previous comment suggests, but it's not invasive.  5.3 may ship w/o delalloc support in ext4, but it would still be good, I think, to have the hooks in the kernel for further development and testing, and it would let us provide test ext4 kernel modules with delalloc, and still run on a stock RHEL5.3 kernel.

Thanks,
-Eric

Comment 5 Don Zickus 2008-09-15 14:18:10 UTC

in kernel-2.6.18-115.el5
You can download this test kernel from http://people.redhat.com/dzickus/el5

Comment 9 errata-xmlrpc 2009-01-20 20:22:30 UTC

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 therefore 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/RHSA-2009-0225.html