From: Josef Bacik <josef@redhat.com>
Date: Mon, 22 Nov 2010 18:50:32 +0000 (+0000)
Subject: Btrfs: fix typo in fallocate to make it honor actual size
X-Git-Tag: v2.6.37-rc4~6^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=55a61d1d06a3dc443d0db8aaa613365dcb83b98a;p=pandora-kernel.git

Btrfs: fix typo in fallocate to make it honor actual size

There is a typo in __btrfs_prealloc_file_range() where we set the i_size to
actual_len/cur_offset, and then just set it to cur_offset again, and do the same
with btrfs_ordered_update_i_size().  This fixes it back to keeping i_size in a
local variable and then updating i_size properly.  Tested this with

xfs_io -F -f -c "falloc 0 1" -c "pwrite 0 1" foo

stat'ing foo gives us a size of 1 instead of 4096 like it was.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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