xfs: per-filesystem stats counter implementation

This patch modifies the stats counting macros and the callers
to those macros to properly increment, decrement, and add-to
the xfs stats counts. The counts for global and per-fs stats
are correctly advanced, and cleared by writing a "1" to the
corresponding clear file.

global counts: /sys/fs/xfs/stats/stats
per-fs counts: /sys/fs/xfs/sda*/stats/stats

global clear:  /sys/fs/xfs/stats/stats_clear
per-fs clear:  /sys/fs/xfs/sda*/stats/stats_clear

[dchinner: cleaned up macro variables, removed CONFIG_FS_PROC around
 stats structures and macros. ]

Signed-off-by: Bill O'Donnell <billodo@redhat.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 9d11d3ea8030..368c55adee9d 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -922,7 +922,7 @@ xfs_fs_destroy_inode(
 
         trace_xfs_destroy_inode(ip);
 
-        XFS_STATS_INC(vn_reclaim);
+        XFS_STATS_INC(ip->i_mount, vn_reclaim);
 
         ASSERT(XFS_FORCED_SHUTDOWN(ip->i_mount) || ip->i_delayed_blks == 0);
 
@@ -983,8 +983,8 @@ xfs_fs_evict_inode(
 
         truncate_inode_pages_final(&inode->i_data);
         clear_inode(inode);
-        XFS_STATS_INC(vn_rele);
-        XFS_STATS_INC(vn_remove);
+        XFS_STATS_INC(ip->i_mount, vn_rele);
+        XFS_STATS_INC(ip->i_mount, vn_remove);
 
         xfs_inactive(ip);
 }