All of lore.kernel.org
 help / color / mirror / Atom feed
* [to-be-updated] powerpc-mm-add-vm_ioremap-flag-to-the-vmalloc-area.patch removed from -mm tree
@ 2023-02-03  5:29 Andrew Morton
  0 siblings, 0 replies; only message in thread
From: Andrew Morton @ 2023-02-03  5:29 UTC (permalink / raw)
  To: mm-commits, willy, urezki, stephen.s.brennan, lstoakes, hch, bhe,
	akpm


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 an updated version will be merged

------------------------------------------------------
From: Baoquan He <bhe@redhat.com>
Subject: powerpc: mm: add VM_IOREMAP flag to the vmalloc area
Date: Fri, 13 Jan 2023 11:19:20 +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/20230113031921.64716-7-bhe@redhat.com
Signed-off-by: Baoquan He <bhe@redhat.com>
Reviewed-by: Lorenzo Stoakes <lstoakes@gmail.com>
Reviewed-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---


--- 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@redhat.com are

sh-mm-set-vm_ioremap-flag-to-the-vmalloc-area.patch


^ permalink raw reply	[flat|nested] only message in thread

only message in thread, other threads:[~2023-02-03  5:29 UTC | newest]

Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2023-02-03  5:29 [to-be-updated] powerpc-mm-add-vm_ioremap-flag-to-the-vmalloc-area.patch removed from -mm tree Andrew Morton

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.