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| author | Oleg Nesterov <oleg@redhat.com> | 2015-08-11 16:28:29 +0200 |
|---|---|---|
| committer | Oleg Nesterov <oleg@redhat.com> | 2015-08-15 13:52:09 +0200 |
| commit | 0e28e01f1e73015d8e1b8fa1cda071d0bd9a2600 (patch) | |
| tree | ae83a5c9f212e85db4dbd00279880a6ce24f575d /kernel/locking/percpu-rwsem.c | |
| parent | f4b554af9931585174d4913b482eacab75858964 (diff) | |
| download | linux-stable-0e28e01f1e73015d8e1b8fa1cda071d0bd9a2600.tar.gz linux-stable-0e28e01f1e73015d8e1b8fa1cda071d0bd9a2600.tar.bz2 linux-stable-0e28e01f1e73015d8e1b8fa1cda071d0bd9a2600.zip | |
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>
Diffstat (limited to 'kernel/locking/percpu-rwsem.c')
0 files changed, 0 insertions, 0 deletions