From: Chengyu Song <csong84@gatech.edu>
Date: Tue, 24 Mar 2015 22:12:56 +0000 (-0400)
Subject: btrfs: incorrect handling for fiemap_fill_next_extent return
X-Git-Tag: omap-for-v4.1/fixes-rc1~43^2~46
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=26e726afe01c1c82072cf23a5ed89ce25f39d9f2;p=pandora-kernel.git

btrfs: incorrect handling for fiemap_fill_next_extent return

fiemap_fill_next_extent returns 0 on success, -errno on error, 1 if this was
the last extent that will fit in user array. If 1 is returned, the return
value may eventually returned to user space, which should not happen, according
to manpage of ioctl.

Signed-off-by: Chengyu Song <csong84@gatech.edu>
Reviewed-by: David Sterba <dsterba@suse.cz>
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <clm@fb.com>
---

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