[merged mm-stable] mm-remove-pmd-alignment-constraint-in-execmem_vmalloc.patch removed from -mm tree

[merged mm-stable] mm-remove-pmd-alignment-constraint-in-execmem_vmalloc.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: mm: remove PMD alignment constraint in execmem_vmalloc()
has been removed from the -mm tree.  Its filename was
     mm-remove-pmd-alignment-constraint-in-execmem_vmalloc.patch

This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Dev Jain <dev.jain@arm.com>
Subject: mm: remove PMD alignment constraint in execmem_vmalloc()
Date: Thu, 18 Sep 2025 15:04:53 +0530

When using vmalloc with VM_ALLOW_HUGE_VMAP flag, it will set the alignment
to PMD_SIZE internally, if it deems huge mappings to be eligible. 
Therefore, setting the alignment in execmem_vmalloc is redundant.  Apart
from this, it also reduces the probability of allocation in case vmalloc
fails to allocate hugepages - in the fallback case, vmalloc tries to use
the original alignment and allocate basepages, which unfortunately will
again be PMD_SIZE passed over from execmem_vmalloc, thus constraining the
search for a free space in vmalloc region.

Therefore, remove this constraint.

Link: https://lkml.kernel.org/r/20250918093453.75676-1-dev.jain@arm.com
Signed-off-by: Dev Jain <dev.jain@arm.com>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/execmem.c |    3 ---
 1 file changed, 3 deletions(-)

--- a/mm/execmem.c~mm-remove-pmd-alignment-constraint-in-execmem_vmalloc
+++ a/mm/execmem.c
@@ -38,9 +38,6 @@ static void *execmem_vmalloc(struct exec
 	if (kasan)
 		vm_flags |= VM_DEFER_KMEMLEAK;
 
-	if (vm_flags & VM_ALLOW_HUGE_VMAP)
-		align = PMD_SIZE;
-
 	p = __vmalloc_node_range(size, align, start, end, gfp_flags,
 				 pgprot, vm_flags, NUMA_NO_NODE,
 				 __builtin_return_address(0));
_

Patches currently in -mm which might be from dev.jain@arm.com are