x86: rename pat_wc_enabled to pat_enabled

BTW, what does pat_wc_enabled stand for? Does it mean
"write-combining"?

Currently it is used to globally switch on or off PAT support.
Thus I renamed it to pat_enabled.
I think this increases readability (and hope that I didn't miss
something).

Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 8 insertions, 8 deletions

diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index a8b69bb26972..4beccea0897f 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -26,11 +26,11 @@
 #include <asm/io.h>
 
 #ifdef CONFIG_X86_PAT
-int __read_mostly pat_wc_enabled = 1;
+int __read_mostly pat_enabled = 1;
 
 void __cpuinit pat_disable(char *reason)
 {
-        pat_wc_enabled = 0;
+        pat_enabled = 0;
         printk(KERN_INFO "%s\n", reason);
 }
 
@@ -72,7 +72,7 @@ void pat_init(void)
 {
         u64 pat;
 
-        if (!pat_wc_enabled)
+        if (!pat_enabled)
                 return;
 
         /* Paranoia check. */
@@ -225,8 +225,8 @@ int reserve_memtype(u64 start, u64 end, unsigned long req_type,
         unsigned long actual_type;
         int err = 0;
 
-        /* Only track when pat_wc_enabled */
-        if (!pat_wc_enabled) {
+        /* Only track when pat_enabled */
+        if (!pat_enabled) {
                 /* This is identical to page table setting without PAT */
                 if (ret_type) {
                         if (req_type == -1) {
@@ -440,8 +440,8 @@ int free_memtype(u64 start, u64 end)
         struct memtype *ml;
         int err = -EINVAL;
 
-        /* Only track when pat_wc_enabled */
-        if (!pat_wc_enabled) {
+        /* Only track when pat_enabled */
+        if (!pat_enabled) {
                 return 0;
         }
 
@@ -535,7 +535,7 @@ int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn,
          * caching for the high addresses through the KEN pin, but
          * we maintain the tradition of paranoia in this code.
          */
-        if (!pat_wc_enabled &&
+        if (!pat_enabled &&
             !(boot_cpu_has(X86_FEATURE_MTRR) ||
               boot_cpu_has(X86_FEATURE_K6_MTRR) ||
               boot_cpu_has(X86_FEATURE_CYRIX_ARR) ||