The patch titled
Subject: mm-highmem-remove-deprecated-kmap_atomic-fix
has been added to the -mm tree. Its filename is
mm-highmem-remove-deprecated-kmap_atomic-fix.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-highmem-remove-deprecated-kmap_atomic-fix.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-highmem-remove-deprecated-kmap_atomic-fix.patch
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------------------------------------------------------
From: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Subject: mm-highmem-remove-deprecated-kmap_atomic-fix
fix zero_user_segments().
Link: https://lkml.kernel.org/r/YYVhHCJcm2DM2G9u@xxxxxxxxxxxxxxxxxxxx
Cc: Ira Weiny <ira.weiny@xxxxxxxxx>
Cc: Prathu Baronia <prathu.baronia@xxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/highmem.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/mm/highmem.c~mm-highmem-remove-deprecated-kmap_atomic-fix
+++ a/mm/highmem.c
@@ -383,7 +383,7 @@ void zero_user_segments(struct page *pag
unsigned this_end = min_t(unsigned, end1, PAGE_SIZE);
if (end1 > start1) {
- kaddr = kmap_atomic(page + i);
+ kaddr = kmap_local_page(page + i);
memset(kaddr + start1, 0, this_end - start1);
}
end1 -= this_end;
@@ -398,7 +398,7 @@ void zero_user_segments(struct page *pag
if (end2 > start2) {
if (!kaddr)
- kaddr = kmap_atomic(page + i);
+ kaddr = kmap_local_page(page + i);
memset(kaddr + start2, 0, this_end - start2);
}
end2 -= this_end;
@@ -406,7 +406,7 @@ void zero_user_segments(struct page *pag
}
if (kaddr) {
- kunmap_atomic(kaddr);
+ kunmap_local(kaddr);
flush_dcache_page(page + i);
}
_
Patches currently in -mm which might be from willy@xxxxxxxxxxxxx are
mm-move-kvmalloc-related-functions-to-slabh.patch
kasan-fix-tag-for-large-allocations-when-using-config_slab.patch
mm-remove-bogus-vm_bug_on.patch
mm-optimise-put_pages_list.patch
mm-highmem-remove-deprecated-kmap_atomic-fix.patch
