The quilt patch titled
Subject: powerpc: mm: add VM_IOREMAP flag to the vmalloc area
has been removed from the -mm tree. Its filename was
powerpc-mm-add-vm_ioremap-flag-to-the-vmalloc-area.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: Baoquan He <bhe@xxxxxxxxxx>
Subject: powerpc: mm: add VM_IOREMAP flag to the vmalloc area
Date: Mon, 6 Feb 2023 16:40:19 +0800
Currently, for vmalloc areas with flag VM_IOREMAP set, except of the
specific alignment clamping in __get_vm_area_node(), they will be
1) Shown as ioremap in /proc/vmallocinfo;
2) Ignored by /proc/kcore reading via vread()
So for the io mapping in ioremap_phb() of ppc, we should set VM_IOREMAP in
flag to make it handled correctly as above.
Link: https://lkml.kernel.org/r/20230206084020.174506-7-bhe@xxxxxxxxxx
Signed-off-by: Baoquan He <bhe@xxxxxxxxxx>
Reviewed-by: Lorenzo Stoakes <lstoakes@xxxxxxxxx>
Reviewed-by: Uladzislau Rezki (Sony) <urezki@xxxxxxxxx>
Cc: Dan Carpenter <error27@xxxxxxxxx>
Cc: Stephen Brennan <stephen.s.brennan@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/powerpc/kernel/pci_64.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/powerpc/kernel/pci_64.c~powerpc-mm-add-vm_ioremap-flag-to-the-vmalloc-area
+++ a/arch/powerpc/kernel/pci_64.c
@@ -132,7 +132,7 @@ void __iomem *ioremap_phb(phys_addr_t pa
* address decoding but I'd rather not deal with those outside of the
* reserved 64K legacy region.
*/
- area = __get_vm_area_caller(size, 0, PHB_IO_BASE, PHB_IO_END,
+ area = __get_vm_area_caller(size, VM_IOREMAP, PHB_IO_BASE, PHB_IO_END,
__builtin_return_address(0));
if (!area)
return NULL;
_
Patches currently in -mm which might be from bhe@xxxxxxxxxx are
