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| author | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:33:58 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:33:58 +0100 |
| commit | 12d6f21eacc21d84a809829543f2fe45c7e37319 (patch) | |
| tree | 6985f2370ad238fb2a568547a5049751d7c95a69 /init | |
| parent | 9a3dc7804e9856668caef41efc54179e61ffccc0 (diff) | |
| download | lwn-12d6f21eacc21d84a809829543f2fe45c7e37319.tar.gz lwn-12d6f21eacc21d84a809829543f2fe45c7e37319.zip | |
x86: do not PSE on CONFIG_DEBUG_PAGEALLOC=y
get more testing of the c_p_a() code done by not turning off
PSE on DEBUG_PAGEALLOC.
this simplifies the early pagetable setup code, and tests
the largepage-splitup code quite heavily.
In the end, all the largepages will be split up pretty quickly,
so there's no difference to how DEBUG_PAGEALLOC worked before.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'init')
| -rw-r--r-- | init/main.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/init/main.c b/init/main.c index 3316dffe3e57..cb81ed116f62 100644 --- a/init/main.c +++ b/init/main.c @@ -318,6 +318,10 @@ static int __init unknown_bootoption(char *param, char *val) return 0; } +#ifdef CONFIG_DEBUG_PAGEALLOC +int __read_mostly debug_pagealloc_enabled = 0; +#endif + static int __init init_setup(char *str) { unsigned int i; @@ -552,6 +556,7 @@ asmlinkage void __init start_kernel(void) preempt_disable(); build_all_zonelists(); page_alloc_init(); + enable_debug_pagealloc(); printk(KERN_NOTICE "Kernel command line: %s\n", boot_command_line); parse_early_param(); parse_args("Booting kernel", static_command_line, __start___param, |