The patch titled
Subject: openrisc: simplify pte_alloc_one_kernel()
has been added to the -mm tree. Its filename is
openrisc-simplify-pte_alloc_one_kernel.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/openrisc-simplify-pte_alloc_one_kernel.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/openrisc-simplify-pte_alloc_one_kernel.patch
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------------------------------------------------------
From: Mike Rapoport <rppt@xxxxxxxxxxxxx>
Subject: openrisc: simplify pte_alloc_one_kernel()
The pte_alloc_one_kernel() function allocates a page using
__get_free_page(GFP_KERNEL) when mm initialization is complete and
memblock_phys_alloc() on the earlier stages. The physical address of the
page allocated with memblock_phys_alloc() is converted to the virtual
address and in the both cases the allocated page is cleared using
clear_page().
The code is simplified by replacing __get_free_page() with
get_zeroed_page() and by replacing memblock_phys_alloc() with
memblock_alloc().
Link: http://lkml.kernel.org/r/1546248566-14910-5-git-send-email-rppt@xxxxxxxxxxxxx
Signed-off-by: Mike Rapoport <rppt@xxxxxxxxxxxxx>
Acked-by: Stafford Horne <shorne@xxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
Cc: Greentime Hu <green.hu@xxxxxxxxx>
Cc: Guan Xuetao <gxt@xxxxxxxxxx>
Cc: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Cc: Jonas Bonn <jonas@xxxxxxxxxxxx>
Cc: Mark Salter <msalter@xxxxxxxxxx>
Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Michal Simek <michal.simek@xxxxxxxxxx>
Cc: Michal Simek <monstr@xxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Rich Felker <dalias@xxxxxxxx>
Cc: Russell King <linux@xxxxxxxxxxxxxxx>
Cc: Stefan Kristiansson <stefan.kristiansson@xxxxxxxxxxxxx>
Cc: Vincent Chen <deanbo422@xxxxxxxxx>
Cc: Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/openrisc/mm/ioremap.c | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)
--- a/arch/openrisc/mm/ioremap.c~openrisc-simplify-pte_alloc_one_kernel
+++ a/arch/openrisc/mm/ioremap.c
@@ -122,13 +122,10 @@ pte_t __ref *pte_alloc_one_kernel(struct
{
pte_t *pte;
- if (likely(mem_init_done)) {
- pte = (pte_t *) __get_free_page(GFP_KERNEL);
- } else {
- pte = (pte_t *) __va(memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE));
- }
+ if (likely(mem_init_done))
+ pte = (pte_t *)get_zeroed_page(GFP_KERNEL);
+ else
+ pte = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
- if (pte)
- clear_page(pte);
return pte;
}
_
Patches currently in -mm which might be from rppt@xxxxxxxxxxxxx are
powerpc-prefer-memblock-apis-returning-virtual-address.patch
microblaze-prefer-memblock-api-returning-virtual-address.patch
sh-prefer-memblock-apis-returning-virtual-address.patch
openrisc-simplify-pte_alloc_one_kernel.patch
arch-simplify-several-early-memory-allocations.patch
arm-s390-unicore32-remove-oneliner-wrappers-for-memblock_alloc.patch
