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| author | Christoph Lameter <clameter@sgi.com> | 2007-05-09 02:35:13 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-09 12:30:56 -0700 |
| commit | 77461ab33229d48614402decfb1b2eaa6d446861 (patch) | |
| tree | d2675ff079e887645ed25ae5f793aa907d53c66a /kernel/sysctl.c | |
| parent | d1187ed21026fd512b87851d0ca26d9ae16f9059 (diff) | |
| download | lwn-77461ab33229d48614402decfb1b2eaa6d446861.tar.gz lwn-77461ab33229d48614402decfb1b2eaa6d446861.zip | |
Make vm statistics update interval configurable
Make it configurable. Code in mm makes the vm statistics intervals
independent from the cache reaper use that opportunity to make it
configurable.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/sysctl.c')
| -rw-r--r-- | kernel/sysctl.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/kernel/sysctl.c b/kernel/sysctl.c index f0664bd5011c..4073353abd4f 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -77,6 +77,7 @@ extern int sysctl_drop_caches; extern int percpu_pagelist_fraction; extern int compat_log; extern int maps_protect; +extern int sysctl_stat_interval; /* this is needed for the proc_dointvec_minmax for [fs_]overflow UID and GID */ static int maxolduid = 65535; @@ -857,6 +858,17 @@ static ctl_table vm_table[] = { .extra2 = &one_hundred, }, #endif +#ifdef CONFIG_SMP + { + .ctl_name = CTL_UNNUMBERED, + .procname = "stat_interval", + .data = &sysctl_stat_interval, + .maxlen = sizeof(sysctl_stat_interval), + .mode = 0644, + .proc_handler = &proc_dointvec_jiffies, + .strategy = &sysctl_jiffies, + }, +#endif #if defined(CONFIG_X86_32) || \ (defined(CONFIG_SUPERH) && defined(CONFIG_VSYSCALL)) { |