Merge branch 'superblock-scaling' of git://git.kernel.org/pub/scm/linux/kernel/git/josef/btrfs-next into for-next

Conflicts:
	include/linux/fs.h

1 files changed, 9 insertions, 3 deletions

diff --git a/include/linux/fs.h b/include/linux/fs.h
index ce356f66cc2a..9b85aa5c7a70 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -637,7 +637,7 @@ struct inode {
 	unsigned long		dirtied_time_when;
 
 	struct hlist_node	i_hash;
-	struct list_head	i_wb_list;	/* backing dev IO list */
+	struct list_head	i_io_list;	/* backing dev IO list */
 #ifdef CONFIG_CGROUP_WRITEBACK
 	struct bdi_writeback	*i_wb;		/* the associated cgroup wb */
 
@@ -1303,7 +1303,6 @@ struct super_block {
 #endif
 	const struct xattr_handler **s_xattr;
 
-	struct list_head	s_inodes;	/* all inodes */
 	struct hlist_bl_head	s_anon;		/* anonymous dentries for (nfs) exporting */
 	struct list_head	s_mounts;	/* list of mounts; _not_ for fs use */
 	struct block_device	*s_bdev;
@@ -1370,10 +1369,17 @@ struct super_block {
 	struct list_lru		s_inode_lru ____cacheline_aligned_in_smp;
 	struct rcu_head		rcu;
 	struct work_struct	destroy_work;
+
+	struct mutex		s_sync_lock;	/* sync serialisation lock */
+
 	/*
 	 * Indicates how deep in a filesystem stack this SB is
 	 */
 	int s_stack_depth;
+
+	/* s_inode_list_lock protects s_inodes */
+	spinlock_t		s_inode_list_lock ____cacheline_aligned_in_smp;
+	struct list_head	s_inodes;	/* all inodes */
 };
 
 extern struct timespec current_fs_time(struct super_block *sb);
@@ -2607,7 +2613,7 @@ static inline void insert_inode_hash(struct inode *inode)
 extern void __remove_inode_hash(struct inode *);
 static inline void remove_inode_hash(struct inode *inode)
 {
-	if (!inode_unhashed(inode))
+	if (!inode_unhashed(inode) && !hlist_fake(&inode->i_hash))
 		__remove_inode_hash(inode);
 }