From: Eric Sandeen <sandeen@redhat.com>
Date: Sat, 3 Oct 2009 01:20:55 +0000 (-0400)
Subject: [PATCH] ext4: retry failed direct IO allocations
X-Git-Tag: v2.6.32-rc3~10^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fbbf69456619de5d251cb9f1df609069178c62d5;p=pandora-kernel.git

[PATCH] ext4: retry failed direct IO allocations

On a 256M filesystem, doing this in a loop:

        xfs_io -F -f -d -c 'pwrite 0 64m' test
        rm -f test

eventually leads to ENOSPC.  (the xfs_io command does a
64m direct IO write to the file "test")

As with other block allocation callers, it looks like we need to
potentially retry the allocations on the initial ENOSPC.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---

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