[PATCH 1/2] ocfs2: Add CONFIG_OCFS2_FS_STATS config option

This patch adds config option CONFIG_OCFS2_FS_STATS to allow building
the fs with instrumentation enabled. An upcoming patch will provide
support to instrument cluster locking, which is a crucial overhead in
a cluster file system. This config option allows users to avoid the cpu
and memory overhead that is involved in gathering such statistics.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>

diff --git a/fs/Kconfig b/fs/Kconfig
index 2694648..9c07a4f 100644 (file)
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -470,6 +470,14 @@ config OCFS2_FS_USERSPACE_CLUSTER
          It is safe to say Y, as the clustering method is run-time
          selectable.
 
+config OCFS2_FS_STATS
+       bool "OCFS2 statistics"
+       depends on OCFS2_FS
+       default y
+       help
+         This option allows some fs statistics to be captured. Enabling
+         this option may increase the memory consumption.
+
 config OCFS2_DEBUG_MASKLOG
        bool "OCFS2 logging support"
        depends on OCFS2_FS