Messages in this thread Patch in this message | | | From | Amerigo Wang <> | Subject | [PATCH 4/4] mm: introduce no_ksm to disable totally KSM | Date | Tue, 21 Jun 2011 16:10:45 +0800 |
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Introduce a new kernel parameter "no_ksm" to totally disable KSM.
Signed-off-by: WANG Cong <amwang@redhat.com> --- mm/ksm.c | 13 +++++++++++++ 1 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/mm/ksm.c b/mm/ksm.c index 9a68b0c..eeb45a2 100644 --- a/mm/ksm.c +++ b/mm/ksm.c @@ -1984,11 +1984,24 @@ static struct attribute_group ksm_attr_group = { }; #endif /* CONFIG_SYSFS */ +static int no_ksm; +static int __init setup_ksm(char *str) +{ + no_ksm = 1; + return 0; +} +__setup("no_ksm", setup_ksm); + static int __init ksm_init(void) { struct task_struct *ksm_thread; int err; + if (no_ksm) { + printk(KERN_INFO "ksm: disabled by cmdline\n"); + return 0; + } + err = ksm_slab_init(); if (err) goto out; -- 1.7.4.4
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