Merge tag 'regulator-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie...

[linux-2.6-microblaze.git] / mm / mmu_gather.c

diff --git a/mm/mmu_gather.c b/mm/mmu_gather.c
index 03c33c9..0dc7149 100644 (file)
--- a/mm/mmu_gather.c
+++ b/mm/mmu_gather.c
@@ -253,21 +253,17 @@ void tlb_flush_mmu(struct mmu_gather *tlb)
  * tlb_gather_mmu - initialize an mmu_gather structure for page-table tear-down
  * @tlb: the mmu_gather structure to initialize
  * @mm: the mm_struct of the target address space
- * @start: start of the region that will be removed from the page-table
- * @end: end of the region that will be removed from the page-table
+ * @fullmm: @mm is without users and we're going to destroy the full address
+ *         space (exit/execve)
  *
  * Called to initialize an (on-stack) mmu_gather structure for page-table
- * tear-down from @mm. The @start and @end are set to 0 and -1
- * respectively when @mm is without users and we're going to destroy
- * the full address space (exit/execve).
+ * tear-down from @mm.
  */
-void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
-                       unsigned long start, unsigned long end)
+static void __tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
+                            bool fullmm)
 {
        tlb->mm = mm;
-
-       /* Is it from 0 to ~0? */
-       tlb->fullmm     = !(start | (end+1));
+       tlb->fullmm = fullmm;
 
 #ifndef CONFIG_MMU_GATHER_NO_GATHER
        tlb->need_flush_all = 0;
@@ -287,17 +283,24 @@ void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
        inc_tlb_flush_pending(tlb->mm);
 }
 
+void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm)
+{
+       __tlb_gather_mmu(tlb, mm, false);
+}
+
+void tlb_gather_mmu_fullmm(struct mmu_gather *tlb, struct mm_struct *mm)
+{
+       __tlb_gather_mmu(tlb, mm, true);
+}
+
 /**
  * tlb_finish_mmu - finish an mmu_gather structure
  * @tlb: the mmu_gather structure to finish
- * @start: start of the region that will be removed from the page-table
- * @end: end of the region that will be removed from the page-table
  *
  * Called at the end of the shootdown operation to free up any resources that
  * were required.
  */
-void tlb_finish_mmu(struct mmu_gather *tlb,
-               unsigned long start, unsigned long end)
+void tlb_finish_mmu(struct mmu_gather *tlb)
 {
        /*
         * If there are parallel threads are doing PTE changes on same range