nilfs2: fix use-after-free of nilfs_root in dirtying inodes via iput

[linux-2.6-microblaze.git] / fs / nilfs2 / segment.c

diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c
index c255302..581691e 100644 (file)
--- a/fs/nilfs2/segment.c
+++ b/fs/nilfs2/segment.c
@@ -2845,6 +2845,7 @@ void nilfs_detach_log_writer(struct super_block *sb)
                nilfs_segctor_destroy(nilfs->ns_writer);
                nilfs->ns_writer = NULL;
        }
+       set_nilfs_purging(nilfs);
 
        /* Force to free the list of dirty files */
        spin_lock(&nilfs->ns_inode_lock);
@@ -2857,4 +2858,5 @@ void nilfs_detach_log_writer(struct super_block *sb)
        up_write(&nilfs->ns_segctor_sem);
 
        nilfs_dispose_list(nilfs, &garbage_list, 1);
+       clear_nilfs_purging(nilfs);
 }