* [to-be-updated] mm-vmalloc-extract-vm_shift-to-consolidate-mapping-shift-selection.patch removed from -mm tree
@ 2026-08-08 16:58 Andrew Morton
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From: Andrew Morton @ 2026-08-08 16:58 UTC (permalink / raw)
To: mm-commits, xueyuan.chen21, will, urezki, ryan.roberts, rppt,
leo.yan, jiangwen6, dev.jain, david, catalin.marinas, baohua,
anshuman.khandual, ajd, jiangwenxiaomi, akpm
The quilt patch titled
Subject: mm/vmalloc: extract vm_shift() to consolidate mapping shift selection
has been removed from the -mm tree. Its filename was
mm-vmalloc-extract-vm_shift-to-consolidate-mapping-shift-selection.patch
This patch was dropped because an updated version will be issued
------------------------------------------------------
From: Wen Jiang <jiangwenxiaomi@gmail.com>
Subject: mm/vmalloc: extract vm_shift() to consolidate mapping shift selection
Date: Wed, 15 Jul 2026 20:08:11 +0800
Extract the vmalloc mapping shift selection from
__vmalloc_node_range_noprof() into vm_shift(), preparing for reuse by the
vmap batching path.
No functional change.
Link: https://lore.kernel.org/20260715120813.3609949-6-jiangwen6@xiaomi.com
Signed-off-by: Wen Jiang <jiangwen6@xiaomi.com>
Suggested-by: Dev Jain <dev.jain@arm.com>
Tested-by: Xueyuan Chen <xueyuan.chen21@gmail.com>
Tested-by: Leo Yan <leo.yan@arm.com>
Reviewed-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: Dev Jain <dev.jain@arm.com>
Cc: Andrew Donnellan <ajd@linux.ibm.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: "Barry Song (Xiaomi)" <baohua@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: "Uladzislau Rezki (Sony)" <urezki@gmail.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/vmalloc.c | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)
--- a/mm/vmalloc.c~mm-vmalloc-extract-vm_shift-to-consolidate-mapping-shift-selection
+++ a/mm/vmalloc.c
@@ -3576,6 +3576,14 @@ void vunmap(const void *addr)
}
EXPORT_SYMBOL(vunmap);
+static inline unsigned int vm_shift(pgprot_t prot, unsigned long size)
+{
+ if (arch_vmap_pmd_supported(prot) && size >= PMD_SIZE)
+ return PMD_SHIFT;
+
+ return arch_vmap_pte_supported_shift(size);
+}
+
/**
* vmap - map an array of pages into virtually contiguous space
* @pages: array of page pointers
@@ -4087,11 +4095,7 @@ void *__vmalloc_node_range_noprof(unsign
* supporting them.
*/
- if (arch_vmap_pmd_supported(prot) && size >= PMD_SIZE)
- shift = PMD_SHIFT;
- else
- shift = arch_vmap_pte_supported_shift(size);
-
+ shift = vm_shift(prot, size);
align = max(original_align, 1UL << shift);
}
_
Patches currently in -mm which might be from jiangwenxiaomi@gmail.com are
mm-vmalloc-map-contiguous-pages-in-batches-for-vmap-if-possible-fix.patch
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2026-08-08 16:58 [to-be-updated] mm-vmalloc-extract-vm_shift-to-consolidate-mapping-shift-selection.patch removed from -mm tree Andrew Morton
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