On Fri, May 03, 2013 at 04:06:56PM -0500, Eric Sandeen wrote:
> s_blockfile_groups is used to limit allocations for non-extent
> files to block groups with block numbers less than 2^32.
> However, it's not updated when the filesystem is resized online,
> so the new groups are unavailable to non-extent files until a remount.
>
> Fix this by updating the value in ext4_update_super() at
> resize time.
>
> Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxx>
I sent out a patch about two weeks ago, which has since been accepted
into Linus's tree as commit c5c72d814cf0. It's been marked for the
for backporting into the stable trees.
Cheers,
- Ted
commit c5c72d814cf0f650010337c73638b25e6d14d2d4
Author: Theodore Ts'o <tytso@xxxxxxx>
Date: Sun Apr 21 20:19:43 2013 -0400
ext4: fix online resizing for ext3-compat file systems
Commit fb0a387dcdc restricts block allocations for indirect-mapped
files to block groups less than s_blockfile_groups. However, the
online resizing code wasn't setting s_blockfile_groups, so the newly
added block groups were not available for non-extent mapped files.
Reported-by: Eric Sandeen <sandeen@xxxxxxxxxx>
Signed-off-by: "Theodore Ts'o" <tytso@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
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