From a215fef7edfdcd8948037ceb3060b9ae7ebcef8b Mon Sep 17 00:00:00 2001
From: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Date: Wed, 6 Jun 2012 18:56:56 +0300
Subject: [PATCH] affs: introduce VFS superblock object back-reference
Add an 'sb' VFS superblock back-reference to the 'struct affs_sb_info' data
structure - we will need to find the VFS superblock from a 'struct
affs_sb_info' object in the next patch, so this change is jut a preparation.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
fs/affs/affs.h | 1 +
fs/affs/super.c | 1 +
2 files changed, 2 insertions(+)
diff --git a/fs/affs/affs.h b/fs/affs/affs.h
index 1fceb320d2f22..5a726e9922454 100644
--- a/fs/affs/affs.h
+++ b/fs/affs/affs.h
@@ -100,6 +100,7 @@ struct affs_sb_info {
char *s_prefix; /* Prefix for volumes and assigns. */
char s_volume[32]; /* Volume prefix for absolute symlinks. */
spinlock_t symlink_lock; /* protects the previous two */
+ struct super_block *sb; /* the VFS superblock object */
};
#define SF_INTL 0x0001 /* International filesystem. */
diff --git a/fs/affs/super.c b/fs/affs/super.c
index da7498da80a63..0496cbbeda1b4 100644
--- a/fs/affs/super.c
+++ b/fs/affs/super.c
@@ -299,6 +299,7 @@ static int affs_fill_super(struct super_block *sb, void *data, int silent)
return -ENOMEM;
sb->s_fs_info = sbi;
+ sbi->sb = sb;
mutex_init(&sbi->s_bmlock);
spin_lock_init(&sbi->symlink_lock);