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(parent: f4b554a) | patch
document rwsem_release() in sb_wait_write()
authorOleg Nesterov <oleg@redhat.com>
Tue, 11 Aug 2015 14:28:29 +0000 (16:28 +0200)
committerOleg Nesterov <oleg@redhat.com>
Sat, 15 Aug 2015 11:52:09 +0000 (13:52 +0200)
commit0e28e01f1e73015d8e1b8fa1cda071d0bd9a2600
treeae83a5c9f212e85db4dbd00279880a6ce24f575dtree | snapshot (tar.gz zip)
parentf4b554af9931585174d4913b482eacab75858964commit | diff
document rwsem_release() in sb_wait_write()

Not only we need to avoid the warning from lockdep_sys_exit(), the
caller of freeze_super() can never release this lock. Another thread
can do this, so there is another reason for rwsem_release().

Plus the comment should explain why we have to fool lockdep.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: Jan Kara <jack@suse.com>
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Motorola kernel-slsi