tree 5022a566bc55a12a792c8bd9b2d94ccfd4b10235
parent 60a6dc55b93b3321afa52f650a149fb7e87fa85a
author Al Viro <viro@zeniv.linux.org.uk> 1141149115 -0500
committer Al Viro <viro@zeniv.linux.org.uk> 1142724826 -0500

[PATCH] don't do exit_io_context() until we know we won't be doing any IO

testcase:

mount /dev/sdb10 /mnt
touch /mnt/tmp/b
umount /mnt
mount /dev/sdb10 /mnt
rm /mnt/tmp/b </mnt/tmp/b
umount /mnt

and watch blkdev_ioc line in /proc/slabinfo.  Vanilla kernel leaks.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>