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diff --git a/fs/xfs/xfs_stats.h b/fs/xfs/xfs_stats.h
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+/*
+ * Copyright (c) 2000,2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#ifndef __XFS_STATS_H__
+#define __XFS_STATS_H__
+
+
+#if defined(CONFIG_PROC_FS) && !defined(XFS_STATS_OFF)
+
+#include <linux/percpu.h>
+
+/*
+ * XFS global statistics
+ */
+struct xfsstats {
+# define XFSSTAT_END_EXTENT_ALLOC 4
+ __uint32_t xs_allocx;
+ __uint32_t xs_allocb;
+ __uint32_t xs_freex;
+ __uint32_t xs_freeb;
+# define XFSSTAT_END_ALLOC_BTREE (XFSSTAT_END_EXTENT_ALLOC+4)
+ __uint32_t xs_abt_lookup;
+ __uint32_t xs_abt_compare;
+ __uint32_t xs_abt_insrec;
+ __uint32_t xs_abt_delrec;
+# define XFSSTAT_END_BLOCK_MAPPING (XFSSTAT_END_ALLOC_BTREE+7)
+ __uint32_t xs_blk_mapr;
+ __uint32_t xs_blk_mapw;
+ __uint32_t xs_blk_unmap;
+ __uint32_t xs_add_exlist;
+ __uint32_t xs_del_exlist;
+ __uint32_t xs_look_exlist;
+ __uint32_t xs_cmp_exlist;
+# define XFSSTAT_END_BLOCK_MAP_BTREE (XFSSTAT_END_BLOCK_MAPPING+4)
+ __uint32_t xs_bmbt_lookup;
+ __uint32_t xs_bmbt_compare;
+ __uint32_t xs_bmbt_insrec;
+ __uint32_t xs_bmbt_delrec;
+# define XFSSTAT_END_DIRECTORY_OPS (XFSSTAT_END_BLOCK_MAP_BTREE+4)
+ __uint32_t xs_dir_lookup;
+ __uint32_t xs_dir_create;
+ __uint32_t xs_dir_remove;
+ __uint32_t xs_dir_getdents;
+# define XFSSTAT_END_TRANSACTIONS (XFSSTAT_END_DIRECTORY_OPS+3)
+ __uint32_t xs_trans_sync;
+ __uint32_t xs_trans_async;
+ __uint32_t xs_trans_empty;
+# define XFSSTAT_END_INODE_OPS (XFSSTAT_END_TRANSACTIONS+7)
+ __uint32_t xs_ig_attempts;
+ __uint32_t xs_ig_found;
+ __uint32_t xs_ig_frecycle;
+ __uint32_t xs_ig_missed;
+ __uint32_t xs_ig_dup;
+ __uint32_t xs_ig_reclaims;
+ __uint32_t xs_ig_attrchg;
+# define XFSSTAT_END_LOG_OPS (XFSSTAT_END_INODE_OPS+5)
+ __uint32_t xs_log_writes;
+ __uint32_t xs_log_blocks;
+ __uint32_t xs_log_noiclogs;
+ __uint32_t xs_log_force;
+ __uint32_t xs_log_force_sleep;
+# define XFSSTAT_END_TAIL_PUSHING (XFSSTAT_END_LOG_OPS+10)
+ __uint32_t xs_try_logspace;
+ __uint32_t xs_sleep_logspace;
+ __uint32_t xs_push_ail;
+ __uint32_t xs_push_ail_success;
+ __uint32_t xs_push_ail_pushbuf;
+ __uint32_t xs_push_ail_pinned;
+ __uint32_t xs_push_ail_locked;
+ __uint32_t xs_push_ail_flushing;
+ __uint32_t xs_push_ail_restarts;
+ __uint32_t xs_push_ail_flush;
+# define XFSSTAT_END_WRITE_CONVERT (XFSSTAT_END_TAIL_PUSHING+2)
+ __uint32_t xs_xstrat_quick;
+ __uint32_t xs_xstrat_split;
+# define XFSSTAT_END_READ_WRITE_OPS (XFSSTAT_END_WRITE_CONVERT+2)
+ __uint32_t xs_write_calls;
+ __uint32_t xs_read_calls;
+# define XFSSTAT_END_ATTRIBUTE_OPS (XFSSTAT_END_READ_WRITE_OPS+4)
+ __uint32_t xs_attr_get;
+ __uint32_t xs_attr_set;
+ __uint32_t xs_attr_remove;
+ __uint32_t xs_attr_list;
+# define XFSSTAT_END_INODE_CLUSTER (XFSSTAT_END_ATTRIBUTE_OPS+3)
+ __uint32_t xs_iflush_count;
+ __uint32_t xs_icluster_flushcnt;
+ __uint32_t xs_icluster_flushinode;
+# define XFSSTAT_END_VNODE_OPS (XFSSTAT_END_INODE_CLUSTER+8)
+ __uint32_t vn_active; /* # vnodes not on free lists */
+ __uint32_t vn_alloc; /* # times vn_alloc called */
+ __uint32_t vn_get; /* # times vn_get called */
+ __uint32_t vn_hold; /* # times vn_hold called */
+ __uint32_t vn_rele; /* # times vn_rele called */
+ __uint32_t vn_reclaim; /* # times vn_reclaim called */
+ __uint32_t vn_remove; /* # times vn_remove called */
+ __uint32_t vn_free; /* # times vn_free called */
+#define XFSSTAT_END_BUF (XFSSTAT_END_VNODE_OPS+9)
+ __uint32_t xb_get;
+ __uint32_t xb_create;
+ __uint32_t xb_get_locked;
+ __uint32_t xb_get_locked_waited;
+ __uint32_t xb_busy_locked;
+ __uint32_t xb_miss_locked;
+ __uint32_t xb_page_retries;
+ __uint32_t xb_page_found;
+ __uint32_t xb_get_read;
+/* Version 2 btree counters */
+#define XFSSTAT_END_ABTB_V2 (XFSSTAT_END_BUF+15)
+ __uint32_t xs_abtb_2_lookup;
+ __uint32_t xs_abtb_2_compare;
+ __uint32_t xs_abtb_2_insrec;
+ __uint32_t xs_abtb_2_delrec;
+ __uint32_t xs_abtb_2_newroot;
+ __uint32_t xs_abtb_2_killroot;
+ __uint32_t xs_abtb_2_increment;
+ __uint32_t xs_abtb_2_decrement;
+ __uint32_t xs_abtb_2_lshift;
+ __uint32_t xs_abtb_2_rshift;
+ __uint32_t xs_abtb_2_split;
+ __uint32_t xs_abtb_2_join;
+ __uint32_t xs_abtb_2_alloc;
+ __uint32_t xs_abtb_2_free;
+ __uint32_t xs_abtb_2_moves;
+#define XFSSTAT_END_ABTC_V2 (XFSSTAT_END_ABTB_V2+15)
+ __uint32_t xs_abtc_2_lookup;
+ __uint32_t xs_abtc_2_compare;
+ __uint32_t xs_abtc_2_insrec;
+ __uint32_t xs_abtc_2_delrec;
+ __uint32_t xs_abtc_2_newroot;
+ __uint32_t xs_abtc_2_killroot;
+ __uint32_t xs_abtc_2_increment;
+ __uint32_t xs_abtc_2_decrement;
+ __uint32_t xs_abtc_2_lshift;
+ __uint32_t xs_abtc_2_rshift;
+ __uint32_t xs_abtc_2_split;
+ __uint32_t xs_abtc_2_join;
+ __uint32_t xs_abtc_2_alloc;
+ __uint32_t xs_abtc_2_free;
+ __uint32_t xs_abtc_2_moves;
+#define XFSSTAT_END_BMBT_V2 (XFSSTAT_END_ABTC_V2+15)
+ __uint32_t xs_bmbt_2_lookup;
+ __uint32_t xs_bmbt_2_compare;
+ __uint32_t xs_bmbt_2_insrec;
+ __uint32_t xs_bmbt_2_delrec;
+ __uint32_t xs_bmbt_2_newroot;
+ __uint32_t xs_bmbt_2_killroot;
+ __uint32_t xs_bmbt_2_increment;
+ __uint32_t xs_bmbt_2_decrement;
+ __uint32_t xs_bmbt_2_lshift;
+ __uint32_t xs_bmbt_2_rshift;
+ __uint32_t xs_bmbt_2_split;
+ __uint32_t xs_bmbt_2_join;
+ __uint32_t xs_bmbt_2_alloc;
+ __uint32_t xs_bmbt_2_free;
+ __uint32_t xs_bmbt_2_moves;
+#define XFSSTAT_END_IBT_V2 (XFSSTAT_END_BMBT_V2+15)
+ __uint32_t xs_ibt_2_lookup;
+ __uint32_t xs_ibt_2_compare;
+ __uint32_t xs_ibt_2_insrec;
+ __uint32_t xs_ibt_2_delrec;
+ __uint32_t xs_ibt_2_newroot;
+ __uint32_t xs_ibt_2_killroot;
+ __uint32_t xs_ibt_2_increment;
+ __uint32_t xs_ibt_2_decrement;
+ __uint32_t xs_ibt_2_lshift;
+ __uint32_t xs_ibt_2_rshift;
+ __uint32_t xs_ibt_2_split;
+ __uint32_t xs_ibt_2_join;
+ __uint32_t xs_ibt_2_alloc;
+ __uint32_t xs_ibt_2_free;
+ __uint32_t xs_ibt_2_moves;
+/* Extra precision counters */
+ __uint64_t xs_xstrat_bytes;
+ __uint64_t xs_write_bytes;
+ __uint64_t xs_read_bytes;
+};
+
+DECLARE_PER_CPU(struct xfsstats, xfsstats);
+
+/*
+ * We don't disable preempt, not too worried about poking the
+ * wrong CPU's stat for now (also aggregated before reporting).
+ */
+#define XFS_STATS_INC(v) (per_cpu(xfsstats, current_cpu()).v++)
+#define XFS_STATS_DEC(v) (per_cpu(xfsstats, current_cpu()).v--)
+#define XFS_STATS_ADD(v, inc) (per_cpu(xfsstats, current_cpu()).v += (inc))
+
+extern int xfs_init_procfs(void);
+extern void xfs_cleanup_procfs(void);
+
+
+#else /* !CONFIG_PROC_FS */
+
+# define XFS_STATS_INC(count)
+# define XFS_STATS_DEC(count)
+# define XFS_STATS_ADD(count, inc)
+
+static inline int xfs_init_procfs(void)
+{
+ return 0;
+}
+
+static inline void xfs_cleanup_procfs(void)
+{
+}
+
+#endif /* !CONFIG_PROC_FS */
+
+#endif /* __XFS_STATS_H__ */