vfs: dcache: fix deadlock in tree traversal

[cascardo/linux.git] / fs / dcache.c

diff --git a/fs/dcache.c b/fs/dcache.c
index 0364af2..693f95b 100644 (file)
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1134,6 +1134,8 @@ positive:
        return 1;
 
 rename_retry:
+       if (locked)
+               goto again;
        locked = 1;
        write_seqlock(&rename_lock);
        goto again;
@@ -1236,6 +1238,8 @@ out:
 rename_retry:
        if (found)
                return found;
+       if (locked)
+               goto again;
        locked = 1;
        write_seqlock(&rename_lock);
        goto again;
@@ -3035,6 +3039,8 @@ resume:
        return;
 
 rename_retry:
+       if (locked)
+               goto again;
        locked = 1;
        write_seqlock(&rename_lock);
        goto again;