tree 4c7b7db057fa5ca60a4e1adcb5dfb63cbf5a5702
parent 88a0a53d702b1fa39ed9e631939d2dbd92dfe486
author Boaz Harrosh <bharrosh@panasas.com> 1250693806 +0300
committer Al Viro <viro@zeniv.linux.org.uk> 1253792858 -0400

exofs: remove BKL from super operations

the two places inside exofs that where taking the BKL were:
exofs_put_super() - .put_super
and
exofs_sync_fs() - which is .sync_fs and is also called from
                  .write_super.

Now exofs_sync_fs() is protected from itself by also taking
the sb_lock.

exofs_put_super() directly calls exofs_sync_fs() so there is no
danger between these two either.

In anyway there is absolutely nothing dangerous been done
inside exofs_sync_fs().

Unless there is some subtle race with the actual lifetime of
the super_block in regard to .put_super and some other parts
of the VFS. Which is highly unlikely.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>