nfsd4: fix bad bounds checking

[firefly-linux-kernel-4.4.55.git] / fs / ocfs2 / dlmglue.c

diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index 20276e340339b64d4ca9c2533e97430801d287a4..b002acf502039a7c0f4c982ba69a5a77558400a2 100644 (file)
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -1390,6 +1390,7 @@ static int __ocfs2_cluster_lock(struct ocfs2_super *osb,
        unsigned int gen;
        int noqueue_attempted = 0;
        int dlm_locked = 0;
+       int kick_dc = 0;
 
        if (!(lockres->l_flags & OCFS2_LOCK_INITIALIZED)) {
                mlog_errno(-EINVAL);
@@ -1524,7 +1525,12 @@ update_holders:
 unlock:
        lockres_clear_flags(lockres, OCFS2_LOCK_UPCONVERT_FINISHING);
 
+       /* ocfs2_unblock_lock reques on seeing OCFS2_LOCK_UPCONVERT_FINISHING */
+       kick_dc = (lockres->l_flags & OCFS2_LOCK_BLOCKED);
+
        spin_unlock_irqrestore(&lockres->l_lock, flags);
+       if (kick_dc)
+               ocfs2_wake_downconvert_thread(osb);
 out:
        /*
         * This is helping work around a lock inversion between the page lock