Bug 455452 - RFE: delalloc helpers for ext4
RFE: delalloc helpers for ext4
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kernel (Show other bugs)
All Linux
low Severity low
: rc
: ---
Assigned To: Eric Sandeen
Martin Jenner
Depends On:
Blocks: 447797
  Show dependency treegraph
Reported: 2008-07-15 11:47 EDT by Eric Sandeen
Modified: 2009-01-20 15:22 EST (History)
1 user (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2009-01-20 15:22:30 EST
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)

External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2009:0225 normal SHIPPED_LIVE Important: Red Hat Enterprise Linux 5.3 kernel security and bug fix update 2009-01-20 11:06:24 EST

  None (edit)
Description Eric Sandeen 2008-07-15 11:47:15 EDT
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:


Comment 1 RHEL Product and Program Management 2008-07-15 12:03:43 EDT
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
Comment 3 Eric Sandeen 2008-08-11 16:44:38 EDT
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.

Comment 5 Don Zickus 2008-09-15 10:18:10 EDT
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 15:22:30 EST
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.


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