Messages in this thread Patch in this message | | | From | Xiaotian Feng <> | Subject | [PATCH -tip] x86/pat: trivial: don't create debugfs for memtype if pat is disabled | Date | Thu, 26 Nov 2009 19:53:48 +0800 |
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If pat is disabled (boot with nopat), there's no need to create debugfs for it, it's empty all the time.
Signed-off-by: Xiaotian Feng <dfeng@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> --- arch/x86/mm/pat.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c index 01fc043..c37fd51 100644 --- a/arch/x86/mm/pat.c +++ b/arch/x86/mm/pat.c @@ -1014,8 +1014,9 @@ static const struct file_operations memtype_fops = { static int __init pat_memtype_list_init(void) { - debugfs_create_file("pat_memtype_list", S_IRUSR, arch_debugfs_dir, - NULL, &memtype_fops); + if (pat_enabled) + debugfs_create_file("pat_memtype_list", S_IRUSR, + arch_debugfs_dir, NULL, &memtype_fops); return 0; } -- 1.6.5.2
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