The patch titled
Subject: nommu: remove __GFP_HIGHMEM in vmalloc/vzalloc
has been added to the -mm tree. Its filename is
nommu-remove-__gfp_highmem-in-vmalloc-vzalloc.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/nommu-remove-__gfp_highmem-in-vmalloc-vzalloc.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/nommu-remove-__gfp_highmem-in-vmalloc-vzalloc.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Chen Li <chenli@xxxxxxxxxxxxx>
Subject: nommu: remove __GFP_HIGHMEM in vmalloc/vzalloc
mm/nommu.c:
void *__vmalloc(unsigned long size, gfp_t gfp_mask)
{
/*
* You can't specify __GFP_HIGHMEM with kmalloc() since kmalloc()
* returns only a logical address.
*/
return kmalloc(size, (gfp_mask | __GFP_COMP) & ~__GFP_HIGHMEM);
}
nommu's __vmalloc just uses kmalloc internally and elimitates
__GFP_HIGHMEM, so it makes no sense to add __GFP_HIGHMEM for nommu's
vmalloc/vzalloc.
Link: https://lkml.kernel.org/r/875z00rnp8.wl-chenli@xxxxxxxxxxxxx
Signed-off-by: Chen Li <chenli@xxxxxxxxxxxxx>
Reviewed-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Cc: Greg Ungerer <gerg@xxxxxxxxxxxxxx>
Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/nommu.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/mm/nommu.c~nommu-remove-__gfp_highmem-in-vmalloc-vzalloc
+++ a/mm/nommu.c
@@ -223,7 +223,7 @@ long vread(char *buf, char *addr, unsign
*/
void *vmalloc(unsigned long size)
{
- return __vmalloc(size, GFP_KERNEL | __GFP_HIGHMEM);
+ return __vmalloc(size, GFP_KERNEL);
}
EXPORT_SYMBOL(vmalloc);
@@ -241,7 +241,7 @@ EXPORT_SYMBOL(vmalloc);
*/
void *vzalloc(unsigned long size)
{
- return __vmalloc(size, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO);
+ return __vmalloc(size, GFP_KERNEL | __GFP_ZERO);
}
EXPORT_SYMBOL(vzalloc);
_
Patches currently in -mm which might be from chenli@xxxxxxxxxxxxx are
nommu-remove-__gfp_highmem-in-vmalloc-vzalloc.patch
