From 2d1d9b5b5cc2d7d528a7cbf621d924de38b1b6b6 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 3 Oct 2013 12:37:18 -0400 Subject: adfs: delayed freeing of sbi makes ->d_hash() and ->d_compare() safety in RCU mode independent from vfsmount_lock. Signed-off-by: Al Viro --- fs/adfs/adfs.h | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'fs/adfs/adfs.h') diff --git a/fs/adfs/adfs.h b/fs/adfs/adfs.h index 585adafb0cc2..c770337c4b45 100644 --- a/fs/adfs/adfs.h +++ b/fs/adfs/adfs.h @@ -43,9 +43,12 @@ struct adfs_dir_ops; * ADFS file system superblock data in memory */ struct adfs_sb_info { - struct adfs_discmap *s_map; /* bh list containing map */ - struct adfs_dir_ops *s_dir; /* directory operations */ - + union { struct { + struct adfs_discmap *s_map; /* bh list containing map */ + struct adfs_dir_ops *s_dir; /* directory operations */ + }; + struct rcu_head rcu; /* used only at shutdown time */ + }; kuid_t s_uid; /* owner uid */ kgid_t s_gid; /* owner gid */ umode_t s_owner_mask; /* ADFS owner perm -> unix perm */ -- cgit v1.2.3-70-g09d2