Messages in this thread Patch in this message | | | Date | Thu, 26 Nov 2009 17:27:38 GMT | From | tip-bot for Xiaotian Feng <> | Subject | [tip:x86/mm] x86/pat: Trivial: don't create debugfs for memtype if pat is disabled |
| |
Commit-ID: dd4377b02d9f028006beed1b7b1695ee5d1498b6 Gitweb: http://git.kernel.org/tip/dd4377b02d9f028006beed1b7b1695ee5d1498b6 Author: Xiaotian Feng <dfeng@redhat.com> AuthorDate: Thu, 26 Nov 2009 19:53:48 +0800 Committer: Ingo Molnar <mingo@elte.hu> CommitDate: Thu, 26 Nov 2009 15:05:03 +0100
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> --- 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 ef71251..a81b7e7 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; }
| |