percpu: kill lpage first chunk allocator

With x86 converted to embedding allocator, lpage doesn't have any user
left.  Kill it along with cpa handling code.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jan Beulich <JBeulich@novell.com>

1 files changed, 1 insertions, 19 deletions

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index dce282f65700..f53cfc7f963d 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -687,7 +687,7 @@ static int cpa_process_alias(struct cpa_data *cpa)
 {
         struct cpa_data alias_cpa;
         unsigned long laddr = (unsigned long)__va(cpa->pfn << PAGE_SHIFT);
-        unsigned long vaddr, remapped;
+        unsigned long vaddr;
         int ret;
 
         if (cpa->pfn >= max_pfn_mapped)
@@ -745,24 +745,6 @@ static int cpa_process_alias(struct cpa_data *cpa)
         }
 #endif
 
-        /*
-         * If the PMD page was partially used for per-cpu remapping,
-         * the recycled area needs to be split and modified.  Because
-         * the area is always proper subset of a PMD page
-         * cpa->numpages is guaranteed to be 1 for these areas, so
-         * there's no need to loop over and check for further remaps.
-         */
-        remapped = (unsigned long)pcpu_lpage_remapped((void *)laddr);
-        if (remapped) {
-                WARN_ON(cpa->numpages > 1);
-                alias_cpa = *cpa;
-                alias_cpa.vaddr = &remapped;
-                alias_cpa.flags &= ~(CPA_PAGES_ARRAY | CPA_ARRAY);
-                ret = __change_page_attr_set_clr(&alias_cpa, 0);
-                if (ret)
-                        return ret;
-        }
-
         return 0;
 }