The patch titled
Subject: mm/hmm: move hmm_pfns_clear() closer to where it is use
has been added to the -mm tree. Its filename is
mm-hmm-move-hmm_pfns_clear-closer-to-where-it-is-use.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-hmm-move-hmm_pfns_clear-closer-to-where-it-is-use.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-hmm-move-hmm_pfns_clear-closer-to-where-it-is-use.patch
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------------------------------------------------------
From: Jérôme Glisse <jglisse@xxxxxxxxxx>
Subject: mm/hmm: move hmm_pfns_clear() closer to where it is use
Move hmm_pfns_clear() closer to where it is use to make it clear it is not
use by page table walkers.
Link: http://lkml.kernel.org/r/20180320020038.3360-13-jglisse@xxxxxxxxxx
Signed-off-by: Jérôme Glisse <jglisse@xxxxxxxxxx>
Reviewed-by: John Hubbard <jhubbard@xxxxxxxxxx>
Cc: Evgeny Baskakov <ebaskakov@xxxxxxxxxx>
Cc: Ralph Campbell <rcampbell@xxxxxxxxxx>
Cc: Mark Hairgrove <mhairgrove@xxxxxxxxxx>
Cc: Balbir Singh <bsingharora@xxxxxxxxx>
Cc: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
Cc: Logan Gunthorpe <logang@xxxxxxxxxxxx>
Cc: Stephen Bates <sbates@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
diff -puN mm/hmm.c~mm-hmm-move-hmm_pfns_clear-closer-to-where-it-is-use mm/hmm.c
--- a/mm/hmm.c~mm-hmm-move-hmm_pfns_clear-closer-to-where-it-is-use
+++ a/mm/hmm.c
@@ -316,14 +316,6 @@ static int hmm_pfns_bad(unsigned long ad
return 0;
}
-static void hmm_pfns_clear(uint64_t *pfns,
- unsigned long addr,
- unsigned long end)
-{
- for (; addr < end; addr += PAGE_SIZE, pfns++)
- *pfns = 0;
-}
-
/*
* hmm_vma_walk_hole() - handle a range lacking valid pmd or pte(s)
* @start: range virtual start address (inclusive)
@@ -482,6 +474,14 @@ fault:
return 0;
}
+static void hmm_pfns_clear(uint64_t *pfns,
+ unsigned long addr,
+ unsigned long end)
+{
+ for (; addr < end; addr += PAGE_SIZE, pfns++)
+ *pfns = 0;
+}
+
static void hmm_pfns_special(struct hmm_range *range)
{
unsigned long addr = range->start, i = 0;
_
Patches currently in -mm which might be from jglisse@xxxxxxxxxx are
mm-hmm-fix-header-file-if-else-endif-maze-v2.patch
mm-hmm-unregister-mmu_notifier-when-last-hmm-client-quit.patch
mm-hmm-hmm_pfns_bad-was-accessing-wrong-struct.patch
mm-hmm-use-struct-for-hmm_vma_fault-hmm_vma_get_pfns-parameters-v2.patch
mm-hmm-remove-hmm_pfn_read-flag-and-ignore-peculiar-architecture-v2.patch
mm-hmm-use-uint64_t-for-hmm-pfn-instead-of-defining-hmm_pfn_t-to-ulong-v2.patch
mm-hmm-cleanup-special-vma-handling-vm_special.patch
mm-hmm-do-not-differentiate-between-empty-entry-or-missing-directory-v2.patch
mm-hmm-rename-hmm_pfn_device_unaddressable-to-hmm_pfn_device_private.patch
mm-hmm-move-hmm_pfns_clear-closer-to-where-it-is-use.patch
mm-hmm-factor-out-pte-and-pmd-handling-to-simplify-hmm_vma_walk_pmd.patch
mm-hmm-change-hmm_vma_fault-to-allow-write-fault-on-page-basis.patch
mm-hmm-use-device-driver-encoding-for-hmm-pfn-v2.patch
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