[XFS] Add degframentation exclusion support
SGI-PV: 953061
SGI-Modid: xfs-linux-melb:xfs-kern:25986a
Signed-off-by: Barry Naujok <bnaujok@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
diff --git a/fs/xfs/linux-2.6/xfs_globals.c b/fs/xfs/linux-2.6/xfs_globals.c
index 6e8085f..6c162c3 100644
--- a/fs/xfs/linux-2.6/xfs_globals.c
+++ b/fs/xfs/linux-2.6/xfs_globals.c
@@ -45,6 +45,7 @@
.xfs_buf_age = { 1*100, 15*100, 7200*100},
.inherit_nosym = { 0, 0, 1 },
.rotorstep = { 1, 1, 255 },
+ .inherit_nodfrg = { 0, 1, 1 },
};
/*
diff --git a/fs/xfs/linux-2.6/xfs_linux.h b/fs/xfs/linux-2.6/xfs_linux.h
index e9fe43d..7d15cb9 100644
--- a/fs/xfs/linux-2.6/xfs_linux.h
+++ b/fs/xfs/linux-2.6/xfs_linux.h
@@ -134,6 +134,7 @@
#define xfs_buf_age_centisecs xfs_params.xfs_buf_age.val
#define xfs_inherit_nosymlinks xfs_params.inherit_nosym.val
#define xfs_rotorstep xfs_params.rotorstep.val
+#define xfs_inherit_nodefrag xfs_params.inherit_nodfrg.val
#ifndef raw_smp_processor_id
#define raw_smp_processor_id() smp_processor_id()
diff --git a/fs/xfs/linux-2.6/xfs_sysctl.c b/fs/xfs/linux-2.6/xfs_sysctl.c
index 7079cc8..4af9768 100644
--- a/fs/xfs/linux-2.6/xfs_sysctl.c
+++ b/fs/xfs/linux-2.6/xfs_sysctl.c
@@ -120,6 +120,11 @@
&sysctl_intvec, NULL,
&xfs_params.rotorstep.min, &xfs_params.rotorstep.max},
+ {XFS_INHERIT_NODFRG, "inherit_nodefrag", &xfs_params.inherit_nodfrg.val,
+ sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+ &sysctl_intvec, NULL,
+ &xfs_params.inherit_nodfrg.min, &xfs_params.inherit_nodfrg.max},
+
/* please keep this the last entry */
#ifdef CONFIG_PROC_FS
{XFS_STATS_CLEAR, "stats_clear", &xfs_params.stats_clear.val,
diff --git a/fs/xfs/linux-2.6/xfs_sysctl.h b/fs/xfs/linux-2.6/xfs_sysctl.h
index bc8c11f..a631fb8 100644
--- a/fs/xfs/linux-2.6/xfs_sysctl.h
+++ b/fs/xfs/linux-2.6/xfs_sysctl.h
@@ -46,6 +46,7 @@
xfs_sysctl_val_t xfs_buf_age; /* Metadata buffer age before flush. */
xfs_sysctl_val_t inherit_nosym; /* Inherit the "nosymlinks" flag. */
xfs_sysctl_val_t rotorstep; /* inode32 AG rotoring control knob */
+ xfs_sysctl_val_t inherit_nodfrg;/* Inherit the "nodefrag" inode flag. */
} xfs_param_t;
/*
@@ -84,6 +85,7 @@
/* XFS_IO_BYPASS = 18 */
XFS_INHERIT_NOSYM = 19,
XFS_ROTORSTEP = 20,
+ XFS_INHERIT_NODFRG = 21,
};
extern xfs_param_t xfs_params;