From: Eric Sandeen <sandeen@redhat.com>
Date: Tue, 13 Oct 2009 02:34:27 +0000 (-0500)
Subject: ext3: retry failed direct IO allocations
X-Git-Tag: v2.6.32-rc7~38^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ea0174a7137c8ca9f130ca681f3a99c872da6778;p=pandora-kernel.git

ext3: retry failed direct IO allocations

On a 256M 4k block filesystem, doing this in a loop:

    dd if=/dev/zero of=test oflag=direct bs=1M count=64
    rm -f test

eventually leads to spurious ENOSPC:

    dd: writing `test': No space left on device

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

A similar patch went into ext4 (commit
fbbf69456619de5d251cb9f1df609069178c62d5)

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
---

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