diff options
Diffstat (limited to 'arch/x86/mm/pat.c')
| -rw-r--r-- | arch/x86/mm/pat.c | 19 |
1 files changed, 7 insertions, 12 deletions
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c index d7ebc3a10f2..e78cd0ec2bc 100644 --- a/arch/x86/mm/pat.c +++ b/arch/x86/mm/pat.c @@ -81,6 +81,7 @@ enum { void pat_init(void) { u64 pat; + bool boot_cpu = !boot_pat_state; if (!pat_enabled) return; @@ -122,8 +123,10 @@ void pat_init(void) rdmsrl(MSR_IA32_CR_PAT, boot_pat_state); wrmsrl(MSR_IA32_CR_PAT, pat); - printk(KERN_INFO "x86 PAT enabled: cpu %d, old 0x%Lx, new 0x%Lx\n", - smp_processor_id(), boot_pat_state, pat); + + if (boot_cpu) + printk(KERN_INFO "x86 PAT enabled: cpu %d, old 0x%Lx, new 0x%Lx\n", + smp_processor_id(), boot_pat_state, pat); } #undef PAT @@ -424,17 +427,9 @@ int reserve_memtype(u64 start, u64 end, unsigned long req_type, spin_lock(&memtype_lock); - entry = memtype_rb_search(&memtype_rbroot, new->start); - if (likely(entry != NULL)) { - /* To work correctly with list_for_each_entry_continue */ - entry = list_entry(entry->nd.prev, struct memtype, nd); - } else { - entry = list_entry(&memtype_list, struct memtype, nd); - } - /* Search for existing mapping that overlaps the current range */ where = NULL; - list_for_each_entry_continue(entry, &memtype_list, nd) { + list_for_each_entry(entry, &memtype_list, nd) { if (end <= entry->start) { where = entry->nd.prev; break; @@ -532,7 +527,7 @@ int free_memtype(u64 start, u64 end) * in sorted start address */ saved_entry = entry; - list_for_each_entry(entry, &memtype_list, nd) { + list_for_each_entry_from(entry, &memtype_list, nd) { if (entry->start == start && entry->end == end) { rb_erase(&entry->rb, &memtype_rbroot); list_del(&entry->nd); |