src/patches/suse-2.6.27.25/patches.fixes/ocfs2-fix-wake_up-in-unlock_ast.patch

   1 From: David Teigland <teigland@redhat.com>
   2 Date: Mon, 17 Nov 2008 12:28:48 -0600
   3 Subject: ocfs2: fix wake_up in unlock_ast
   4
   5 In ocfs2_unlock_ast(), call wake_up() on lockres before releasing
   6 the spin lock on it.  As soon as the spin lock is released, the
   7 lockres can be freed.
   8
   9 Signed-off-by: David Teigland <teigland@redhat.com>
  10 Signed-off-by: Mark Fasheh <mfasheh@suse.com>
  11 ---
  12  fs/ocfs2/dlmglue.c |    3 +--
  13  1 files changed, 1 insertions(+), 2 deletions(-)
  14
  15 Index: linux-2.6.27-ocfs2/fs/ocfs2/dlmglue.c
  16 ===================================================================
  17 --- linux-2.6.27-ocfs2.orig/fs/ocfs2/dlmglue.c
  18 +++ linux-2.6.27-ocfs2/fs/ocfs2/dlmglue.c
  19 @@ -2841,9 +2841,8 @@ static void ocfs2_unlock_ast(void *opaqu
  20
  21         lockres_clear_flags(lockres, OCFS2_LOCK_BUSY);
  22         lockres->l_unlock_action = OCFS2_UNLOCK_INVALID;
  23 -       spin_unlock_irqrestore(&lockres->l_lock, flags);
  24 -
  25         wake_up(&lockres->l_event);
  26 +       spin_unlock_irqrestore(&lockres->l_lock, flags);
  27
  28         mlog_exit_void();
  29  }