From: Dmitry Monakhov <dmonakhov@openvz.org>
Date: Tue, 25 Oct 2011 12:15:12 +0000 (-0400)
Subject: ext4: update EOFBLOCKS flag on fallocate properly
X-Git-Tag: v3.2-rc1~85^2~36
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a4e5d88b1b24827f4f6a3cba43228936a67d81ba;p=pandora-kernel.git

ext4: update EOFBLOCKS flag on fallocate properly

EOFBLOCK_FL should be updated if called w/o FALLOCATE_FL_KEEP_SIZE
Currently it happens only if new extent was allocated.

TESTCASE:
fallocate test_file -n -l4096
fallocate test_file -l4096
Last fallocate cmd has updated size, but keept EOFBLOCK_FL set. And
fsck will complain about that.

Also remove ping pong in ext4_fallocate() in case of new extents,
where ext4_ext_map_blocks() clear EOFBLOCKS bit, and later
ext4_falloc_update_inode() restore it again.

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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