1 files changed, 13 insertions, 82 deletions

diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 0d8abd6364d9..8c995a2ccb6f 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -18,8 +18,6 @@
 #ifndef __XFS_MOUNT_H__
 #define	__XFS_MOUNT_H__
 
-#ifdef __KERNEL__
-
 struct xlog;
 struct xfs_inode;
 struct xfs_mru_cache;
@@ -29,44 +27,6 @@ struct xfs_quotainfo;
 struct xfs_dir_ops;
 struct xfs_da_geometry;
 
-#ifdef HAVE_PERCPU_SB
-
-/*
- * Valid per-cpu incore superblock counters. Note that if you add new counters,
- * you may need to define new counter disabled bit field descriptors as there
- * are more possible fields in the superblock that can fit in a bitfield on a
- * 32 bit platform. The XFS_SBS_* values for the current current counters just
- * fit.
- */
-typedef struct xfs_icsb_cnts {
-	uint64_t	icsb_fdblocks;
-	uint64_t	icsb_ifree;
-	uint64_t	icsb_icount;
-	unsigned long	icsb_flags;
-} xfs_icsb_cnts_t;
-
-#define XFS_ICSB_FLAG_LOCK	(1 << 0)	/* counter lock bit */
-
-#define XFS_ICSB_LAZY_COUNT	(1 << 1)	/* accuracy not needed */
-
-extern int	xfs_icsb_init_counters(struct xfs_mount *);
-extern void	xfs_icsb_reinit_counters(struct xfs_mount *);
-extern void	xfs_icsb_destroy_counters(struct xfs_mount *);
-extern void	xfs_icsb_sync_counters(struct xfs_mount *, int);
-extern void	xfs_icsb_sync_counters_locked(struct xfs_mount *, int);
-extern int	xfs_icsb_modify_counters(struct xfs_mount *, xfs_sb_field_t,
-						int64_t, int);
-
-#else
-#define xfs_icsb_init_counters(mp)		(0)
-#define xfs_icsb_destroy_counters(mp)		do { } while (0)
-#define xfs_icsb_reinit_counters(mp)		do { } while (0)
-#define xfs_icsb_sync_counters(mp, flags)	do { } while (0)
-#define xfs_icsb_sync_counters_locked(mp, flags) do { } while (0)
-#define xfs_icsb_modify_counters(mp, field, delta, rsvd) \
-	xfs_mod_incore_sb(mp, field, delta, rsvd)
-#endif
-
 /* dynamic preallocation free space thresholds, 5% down to 1% */
 enum {
 	XFS_LOWSP_1_PCNT = 0,
@@ -81,8 +41,13 @@ typedef struct xfs_mount {
 	struct super_block	*m_super;
 	xfs_tid_t		m_tid;		/* next unused tid for fs */
 	struct xfs_ail		*m_ail;		/* fs active log item list */
-	xfs_sb_t		m_sb;		/* copy of fs superblock */
+
+	struct xfs_sb		m_sb;		/* copy of fs superblock */
 	spinlock_t		m_sb_lock;	/* sb counter lock */
+	struct percpu_counter	m_icount;	/* allocated inodes counter */
+	struct percpu_counter	m_ifree;	/* free inodes counter */
+	struct percpu_counter	m_fdblocks;	/* free block counter */
+
 	struct xfs_buf		*m_sb_bp;	/* buffer for superblock */
 	char			*m_fsname;	/* filesystem name */
 	int			m_fsname_len;	/* strlen of fs name */
@@ -152,12 +117,6 @@ typedef struct xfs_mount {
 	const struct xfs_dir_ops *m_nondir_inode_ops; /* !dir inode ops */
 	uint			m_chsize;	/* size of next field */
 	atomic_t		m_active_trans;	/* number trans frozen */
-#ifdef HAVE_PERCPU_SB
-	xfs_icsb_cnts_t __percpu *m_sb_cnts;	/* per-cpu superblock counters */
-	unsigned long		m_icsb_counters; /* disabled per-cpu counters */
-	struct notifier_block	m_icsb_notifier; /* hotplug cpu notifier */
-	struct mutex		m_icsb_mutex;	/* balancer sync lock */
-#endif
 	struct xfs_mru_cache	*m_filestream;  /* per-mount filestream data */
 	struct delayed_work	m_reclaim_work;	/* background inode reclaim */
 	struct delayed_work	m_eofblocks_work; /* background eof blocks
@@ -301,35 +260,6 @@ xfs_daddr_to_agbno(struct xfs_mount *mp, xfs_daddr_t d)
 }
 
 /*
- * Per-cpu superblock locking functions
- */
-#ifdef HAVE_PERCPU_SB
-static inline void
-xfs_icsb_lock(xfs_mount_t *mp)
-{
-	mutex_lock(&mp->m_icsb_mutex);
-}
-
-static inline void
-xfs_icsb_unlock(xfs_mount_t *mp)
-{
-	mutex_unlock(&mp->m_icsb_mutex);
-}
-#else
-#define xfs_icsb_lock(mp)
-#define xfs_icsb_unlock(mp)
-#endif
-
-/*
- * This structure is for use by the xfs_mod_incore_sb_batch() routine.
- * xfs_growfs can specify a few fields which are more than int limit
- */
-typedef struct xfs_mod_sb {
-	xfs_sb_field_t	msb_field;	/* Field to modify, see below */
-	int64_t		msb_delta;	/* Change to make to specified field */
-} xfs_mod_sb_t;
-
-/*
  * Per-ag incore structure, copies of information in agf and agi, to improve the
  * performance of allocation group selection.
  */
@@ -383,11 +313,14 @@ extern __uint64_t xfs_default_resblks(xfs_mount_t *mp);
 extern int	xfs_mountfs(xfs_mount_t *mp);
 extern int	xfs_initialize_perag(xfs_mount_t *mp, xfs_agnumber_t agcount,
 				     xfs_agnumber_t *maxagi);
-
 extern void	xfs_unmountfs(xfs_mount_t *);
-extern int	xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int64_t, int);
-extern int	xfs_mod_incore_sb_batch(xfs_mount_t *, xfs_mod_sb_t *,
-			uint, int);
+
+extern int	xfs_mod_icount(struct xfs_mount *mp, int64_t delta);
+extern int	xfs_mod_ifree(struct xfs_mount *mp, int64_t delta);
+extern int	xfs_mod_fdblocks(struct xfs_mount *mp, int64_t delta,
+				 bool reserved);
+extern int	xfs_mod_frextents(struct xfs_mount *mp, int64_t delta);
+
 extern int	xfs_mount_log_sb(xfs_mount_t *);
 extern struct xfs_buf *xfs_getsb(xfs_mount_t *, int);
 extern int	xfs_readsb(xfs_mount_t *, int);
@@ -399,6 +332,4 @@ extern int	xfs_dev_is_read_only(struct xfs_mount *, char *);
 
 extern void	xfs_set_low_space_thresholds(struct xfs_mount *);
 
-#endif	/* __KERNEL__ */
-
 #endif	/* __XFS_MOUNT_H__ */