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Commit dd4377b0 authored by Xiaotian Feng's avatar Xiaotian Feng Committed by Ingo Molnar
Browse files

x86/pat: Trivial: don't create debugfs for memtype if pat is disabled 



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: default avatarXiaotian Feng <dfeng@redhat.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
LKML-Reference: <1259236428-16329-1-git-send-email-dfeng@redhat.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 5bf65b9b

arch/x86/mm/pat.c

+4 −2
Original line number Diff line number Diff line
@@ -1019,8 +1019,10 @@ 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;

}