diff options
| author | Mike Rapoport <rppt@linux.ibm.com> | 2019-03-08 01:31:01 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-08 03:32:03 +0100 |
| commit | 1e8ffd50fd201d05b3de97858ce6868cf774b4a8 (patch) | |
| tree | d28e2f0d81dd02f50b255a226fbc2d527444746e /arch | |
| parent | sh: prefer memblock APIs returning virtual address (diff) | |
| download | linux-1e8ffd50fd201d05b3de97858ce6868cf774b4a8.tar.xz linux-1e8ffd50fd201d05b3de97858ce6868cf774b4a8.zip | |
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@linux.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: Stafford Horne <shorne@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Mark Salter <msalter@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/openrisc/mm/ioremap.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/arch/openrisc/mm/ioremap.c b/arch/openrisc/mm/ioremap.c index 270d1c9bc0d6..051bcb4fefd3 100644 --- a/arch/openrisc/mm/ioremap.c +++ b/arch/openrisc/mm/ioremap.c @@ -122,13 +122,10 @@ pte_t __ref *pte_alloc_one_kernel(struct mm_struct *mm) { 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; } |