The patch titled
Subject: mm: move __remove_vm_area out of va_remove_mappings
has been added to the -mm mm-unstable branch. Its filename is
mm-move-__remove_vm_area-out-of-va_remove_mappings.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-move-__remove_vm_area-out-of-va_remove_mappings.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: Christoph Hellwig <hch@xxxxxx>
Subject: mm: move __remove_vm_area out of va_remove_mappings
Date: Sat, 21 Jan 2023 08:10:47 +0100
__remove_vm_area is the only part of va_remove_mappings that requires a
vmap_area. Move the call out to the caller and only pass the vm_struct to
va_remove_mappings.
Link: https://lkml.kernel.org/r/20230121071051.1143058-7-hch@xxxxxx
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Uladzislau Rezki (Sony) <urezki@xxxxxxxxx>
Cc: Alexander Potapenko <glider@xxxxxxxxxx>
Cc: Andrey Konovalov <andreyknvl@xxxxxxxxx>
Cc: Andrey Ryabinin <ryabinin.a.a@xxxxxxxxx>
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Cc: Vincenzo Frascino <vincenzo.frascino@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
--- a/mm/vmalloc.c~mm-move-__remove_vm_area-out-of-va_remove_mappings
+++ a/mm/vmalloc.c
@@ -2614,18 +2614,15 @@ static inline void set_area_direct_map(c
set_direct_map(area->pages[i]);
}
-/* Handle removing and resetting vm mappings related to the VA's vm_struct. */
-static void va_remove_mappings(struct vmap_area *va, int deallocate_pages)
+/* Handle removing and resetting vm mappings related to the vm_struct. */
+static void vm_remove_mappings(struct vm_struct *area, int deallocate_pages)
{
- struct vm_struct *area = va->vm;
unsigned long start = ULONG_MAX, end = 0;
unsigned int page_order = vm_area_page_order(area);
int flush_reset = area->flags & VM_FLUSH_RESET_PERMS;
int flush_dmap = 0;
int i;
- __remove_vm_area(va);
-
/* If this is not VM_FLUSH_RESET_PERMS memory, no need for the below. */
if (!flush_reset)
return;
@@ -2691,7 +2688,8 @@ static void __vunmap(const void *addr, i
kasan_poison_vmalloc(area->addr, get_vm_area_size(area));
- va_remove_mappings(va, deallocate_pages);
+ __remove_vm_area(va);
+ vm_remove_mappings(area, deallocate_pages);
if (deallocate_pages) {
int i;
_
Patches currently in -mm which might be from hch@xxxxxx are
revert-remoteproc-qcom_q6v5_mss-map-unmap-metadata-region-before-after-use.patch
mm-reject-vmap-with-vm_flush_reset_perms.patch
mm-remove-__vfree.patch
mm-remove-__vfree_deferred.patch
mm-move-vmalloc_init-and-free_work-down-in-vmallocc.patch
mm-call-vfree-instead-of-__vunmap-from-delayed_vfree_work.patch
mm-move-__remove_vm_area-out-of-va_remove_mappings.patch
mm-use-remove_vm_area-in-__vunmap.patch
mm-move-debug-checks-from-__vunmap-to-remove_vm_area.patch
mm-split-__vunmap.patch
mm-refactor-va_remove_mappings.patch
