The patch titled
Subject: highmem: delete a sentence from kmap_local_page() kdocs
has been added to the -mm mm-unstable branch. Its filename is
highmem-delete-a-sentence-from-kmap_local_page-kdocs.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/highmem-delete-a-sentence-from-kmap_local_page-kdocs.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: "Fabio M. De Francesco" <fmdefrancesco@xxxxxxxxx>
Subject: highmem: delete a sentence from kmap_local_page() kdocs
Date: Thu, 28 Jul 2022 17:48:43 +0200
kmap_local_page() should always be preferred in place of kmap() and
kmap_atomic(). "Only use when really necessary." is not consistent with
the Documentation/mm/highmem.rst and these kdocs it embeds.
Therefore, delete the above-mentioned sentence from kdocs.
Link: https://lkml.kernel.org/r/20220728154844.10874-7-fmdefrancesco@xxxxxxxxx
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@xxxxxxxxx>
Suggested-by: Ira Weiny <ira.weiny@xxxxxxxxx>
Reviewed-by: Ira Weiny <ira.weiny@xxxxxxxxx>
Cc: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Cc: Mike Rapoport <rppt@xxxxxxxxxxxxx>
Cc: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Cc: Peter Collingbourne <pcc@xxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/highmem.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/include/linux/highmem.h~highmem-delete-a-sentence-from-kmap_local_page-kdocs
+++ a/include/linux/highmem.h
@@ -86,8 +86,7 @@ static inline void kmap_flush_unused(voi
* temporarily mapped.
*
* While it is significantly faster than kmap() for the higmem case it
- * comes with restrictions about the pointer validity. Only use when really
- * necessary.
+ * comes with restrictions about the pointer validity.
*
* On HIGHMEM enabled systems mapping a highmem page has the side effect of
* disabling migration in order to keep the virtual address stable across
_
Patches currently in -mm which might be from fmdefrancesco@xxxxxxxxx are
highmem-remove-unneeded-spaces-in-kmap_local_page-kdocs.patch
highmem-specify-that-kmap_local_page-is-callable-from-interrupts.patch
documentation-mm-dont-kmap-pages-which-cant-come-from-highmem.patch
documentation-mm-avoid-invalid-use-of-addresses-from-kmap_local_page.patch
documentation-mm-prefer-kmap_local_page-and-avoid-kmap.patch
highmem-delete-a-sentence-from-kmap_local_page-kdocs.patch
documentation-mm-add-details-about-kmap_local_page-and-preemption.patch
