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| author | Xiaotian Feng <dfeng@redhat.com> | 2009-11-26 12:53:48 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-11-26 15:05:03 +0100 |
| commit | dd4377b02d9f028006beed1b7b1695ee5d1498b6 (patch) | |
| tree | 3036c47915a06eeca6d6b7c75e859bb812fa0690 /arch/x86/mm/pat.c | |
| parent | x86, mtrr: Fix sorting of mtrr after subtracting (diff) | |
| download | linux-dd4377b02d9f028006beed1b7b1695ee5d1498b6.tar.xz linux-dd4377b02d9f028006beed1b7b1695ee5d1498b6.zip | |
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: Xiaotian 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: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to '')
| -rw-r--r-- | arch/x86/mm/pat.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c index ef712518b5b4..a81b7e73275d 100644 --- a/arch/x86/mm/pat.c +++ b/arch/x86/mm/pat.c @@ -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; } |