[REVIEW] Fix end of device zeroing with

xfs

[REVIEW] Fix end of device zeroing with > 1K sector sizes

To:	"xfs@xxxxxxxxxxx" <xfs@xxxxxxxxxxx>
Subject:	[REVIEW] Fix end of device zeroing with > 1K sector sizes
From:	"Barry Naujok" <bnaujok@xxxxxxx>
Date:	Fri, 22 Feb 2008 14:56:20 +1100
Organization:	SGI
Sender:	xfs-bounce@xxxxxxxxxxx
User-agent:	Opera Mail/9.24 (Win32)

It has been found that mkfs with big sector sizes and devices/partitions
that aren't aligned to the sector size can cause short writes when zeroing
the end of the device. As mkfs.xfs didn't complete, the filesystem is
unmountable.

Eg:

# mkfs.xfs -f -L fs_1 -s size=4096 -l size=64m,sunit=512 /dev/hdd1
mkfs.xfs: error - wrote only 130048 of 131072 bytes


The attached patch rounds down the device size to either 1K or
the sector size, whichever is greater.

Barry.

fix_eodev_zeroing.patch
Description: Text Data

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