fuse: fix llseek bug
authorRoel Kluin <roel.kluin@gmail.com>
Tue, 13 Dec 2011 09:37:00 +0000 (10:37 +0100)
committerGreg Kroah-Hartman <gregkh@suse.de>
Wed, 21 Dec 2011 20:58:34 +0000 (12:58 -0800)
commitb0c1dfb82b43b53fb60104f7969b87b7c54cc832
tree0e52fb0edf5ce62567613f2b07ea99b50c951065
parent3425a017beef04b5152fb6c3c7b2b2768473ed21
fuse: fix llseek bug

commit b48c6af2086ab2ba8a9c9b6ce9ecb34592ce500c upstream.

The test in fuse_file_llseek() "not SEEK_CUR or not SEEK_SET" always evaluates
to true.

This was introduced in 3.1 by commit 06222e49 (fs: handle SEEK_HOLE/SEEK_DATA
properly in all fs's that define their own llseek) and changed the behavior of
SEEK_CUR and SEEK_SET to always retrieve the file attributes.  This is a
performance regression.

Fix the test so that it makes sense.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
CC: Josef Bacik <josef@redhat.com>
CC: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
fs/fuse/file.c