+ mm-hugetlb-only-drop-uffd-wp-special-pte-if-required-fix.patch added to -mm tree

+ mm-hugetlb-only-drop-uffd-wp-special-pte-if-required-fix.patch added to -mm tree

[Andrew Morton]

The patch titled
     Subject: fixup! mm/hugetlb: Only drop uffd-wp special pte if required
has been added to the -mm tree.  Its filename is
     mm-hugetlb-only-drop-uffd-wp-special-pte-if-required-fix.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/mm-hugetlb-only-drop-uffd-wp-special-pte-if-required-fix.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/mm-hugetlb-only-drop-uffd-wp-special-pte-if-required-fix.patch

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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

The -mm tree is included into linux-next and is updated
there every 3-4 working days

------------------------------------------------------
From: Peter Xu <peterx@redhat.com>
Subject: fixup! mm/hugetlb: Only drop uffd-wp special pte if required

fix sparse warning

Link: https://lkml.kernel.org/r/Ylcdw8I1L5iAoWhb@xz-m1.local
Signed-off-by: Peter Xu <peterx@redhat.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---


--- a/fs/hugetlbfs/inode.c~mm-hugetlb-only-drop-uffd-wp-special-pte-if-required-fix
+++ a/fs/hugetlbfs/inode.c
@@ -405,7 +405,7 @@ static void remove_huge_page(struct page
 
 static void
 hugetlb_vmdelete_list(struct rb_root_cached *root, pgoff_t start, pgoff_t end,
-		      unsigned long zap_flags)
+		      zap_flags_t zap_flags)
 {
 	struct vm_area_struct *vma;
 
--- a/include/linux/hugetlb.h~mm-hugetlb-only-drop-uffd-wp-special-pte-if-required-fix
+++ a/include/linux/hugetlb.h
@@ -144,11 +144,11 @@ long follow_hugetlb_page(struct mm_struc
 			 int *);
 void unmap_hugepage_range(struct vm_area_struct *,
 			  unsigned long, unsigned long, struct page *,
-			  unsigned long);
+			  zap_flags_t);
 void __unmap_hugepage_range_final(struct mmu_gather *tlb,
 			  struct vm_area_struct *vma,
 			  unsigned long start, unsigned long end,
-			  struct page *ref_page, unsigned long zap_flags);
+			  struct page *ref_page, zap_flags_t zap_flags);
 void hugetlb_report_meminfo(struct seq_file *);
 int hugetlb_report_node_meminfo(char *buf, int len, int nid);
 void hugetlb_show_meminfo(void);
@@ -408,7 +408,7 @@ static inline unsigned long hugetlb_chan
 static inline void __unmap_hugepage_range_final(struct mmu_gather *tlb,
 			struct vm_area_struct *vma, unsigned long start,
 			unsigned long end, struct page *ref_page,
-			unsigned long zap_flags)
+			zap_flags_t zap_flags)
 {
 	BUG();
 }
--- a/mm/hugetlb.c~mm-hugetlb-only-drop-uffd-wp-special-pte-if-required-fix
+++ a/mm/hugetlb.c
@@ -4962,7 +4962,7 @@ int move_hugetlb_page_tables(struct vm_a
 
 static void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma,
 				   unsigned long start, unsigned long end,
-				   struct page *ref_page, unsigned long zap_flags)
+				   struct page *ref_page, zap_flags_t zap_flags)
 {
 	struct mm_struct *mm = vma->vm_mm;
 	unsigned long address;
@@ -5096,7 +5096,7 @@ static void __unmap_hugepage_range(struc
 void __unmap_hugepage_range_final(struct mmu_gather *tlb,
 			  struct vm_area_struct *vma, unsigned long start,
 			  unsigned long end, struct page *ref_page,
-			  unsigned long zap_flags)
+			  zap_flags_t zap_flags)
 {
 	__unmap_hugepage_range(tlb, vma, start, end, ref_page, zap_flags);
 
@@ -5115,7 +5115,7 @@ void __unmap_hugepage_range_final(struct
 
 void unmap_hugepage_range(struct vm_area_struct *vma, unsigned long start,
 			  unsigned long end, struct page *ref_page,
-			  unsigned long zap_flags)
+			  zap_flags_t zap_flags)
 {
 	struct mmu_gather tlb;
 
--- a/mm/memory.c~mm-hugetlb-only-drop-uffd-wp-special-pte-if-required-fix
+++ a/mm/memory.c
@@ -1675,7 +1675,7 @@ static void unmap_single_vma(struct mmu_
 			 * safe to do nothing in this case.
 			 */
 			if (vma->vm_file) {
-				unsigned long zap_flags = details ?
+				zap_flags_t zap_flags = details ?
 				    details->zap_flags : 0;
 				i_mmap_lock_write(vma->vm_file->f_mapping);
 				__unmap_hugepage_range_final(tlb, vma, start, end,
_

Patches currently in -mm which might be from peterx@redhat.com are

mm-introduce-pte_marker-swap-entry.patch
mm-introduce-pte_marker-swap-entry-fix.patch
mm-teach-core-mm-about-pte-markers.patch
mm-check-against-orig_pte-for-finish_fault.patch
mm-uffd-pte_marker_uffd_wp.patch
mm-uffd-pte_marker_uffd_wp-fix.patch
mm-shmem-take-care-of-uffdio_copy_mode_wp.patch
mm-shmem-handle-uffd-wp-special-pte-in-page-fault-handler.patch
mm-shmem-persist-uffd-wp-bit-across-zapping-for-file-backed.patch
mm-shmem-allow-uffd-wr-protect-none-pte-for-file-backed-mem.patch
mm-shmem-allows-file-back-mem-to-be-uffd-wr-protected-on-thps.patch
mm-shmem-handle-uffd-wp-during-fork.patch
mm-hugetlb-introduce-huge-pte-version-of-uffd-wp-helpers.patch
mm-hugetlb-hook-page-faults-for-uffd-write-protection.patch
mm-hugetlb-take-care-of-uffdio_copy_mode_wp.patch
mm-hugetlb-handle-uffdio_writeprotect.patch
mm-hugetlb-handle-pte-markers-in-page-faults.patch
mm-hugetlb-allow-uffd-wr-protect-none-ptes.patch
mm-hugetlb-only-drop-uffd-wp-special-pte-if-required.patch
mm-hugetlb-only-drop-uffd-wp-special-pte-if-required-fix.patch
mm-hugetlb-handle-uffd-wp-during-fork.patch
mm-khugepaged-dont-recycle-vma-pgtable-if-uffd-wp-registered.patch
mm-pagemap-recognize-uffd-wp-bit-for-shmem-hugetlbfs.patch
mm-uffd-enable-write-protection-for-shmem-hugetlbfs.patch
mm-enable-pte-markers-by-default.patch
selftests-uffd-enable-uffd-wp-for-shmem-hugetlbfs.patch