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Message-ID: <20180906075319.GT14951@dhcp22.suse.cz>
Date: Thu, 6 Sep 2018 09:53:19 +0200
From: Michal Hocko <mhocko@...nel.org>
To: Mike Rapoport <rppt@...ux.vnet.ibm.com>
Cc: linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>,
"David S. Miller" <davem@...emloft.net>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Ingo Molnar <mingo@...hat.com>,
Michael Ellerman <mpe@...erman.id.au>,
Paul Burton <paul.burton@...s.com>,
Thomas Gleixner <tglx@...utronix.de>,
Tony Luck <tony.luck@...el.com>, linux-ia64@...r.kernel.org,
linux-mips@...ux-mips.org, linuxppc-dev@...ts.ozlabs.org,
sparclinux@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 11/29] memblock: replace alloc_bootmem_pages_nopanic
with memblock_alloc_nopanic
On Wed 05-09-18 18:59:26, Mike Rapoport wrote:
> The alloc_bootmem_pages_nopanic(size) is a shortcut for
> __alloc_bootmem_nopanic(x, PAGE_SIZE, BOOTMEM_LOW_LIMIT) and can be
> replaced by memblock_alloc_nopanic(size, PAGE_SIZE)
It is not so straightforward because you really have to go deep down the
callpath to see they are doing the same thing essentially.
> Signed-off-by: Mike Rapoport <rppt@...ux.vnet.ibm.com>
Acked-by: Michal Hocko <mhocko@...e.com>
> ---
> drivers/usb/early/xhci-dbc.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/usb/early/xhci-dbc.c b/drivers/usb/early/xhci-dbc.c
> index e15e896..16df968 100644
> --- a/drivers/usb/early/xhci-dbc.c
> +++ b/drivers/usb/early/xhci-dbc.c
> @@ -94,7 +94,7 @@ static void * __init xdbc_get_page(dma_addr_t *dma_addr)
> {
> void *virt;
>
> - virt = alloc_bootmem_pages_nopanic(PAGE_SIZE);
> + virt = memblock_alloc_nopanic(PAGE_SIZE, PAGE_SIZE);
> if (!virt)
> return NULL;
>
> --
> 2.7.4
>
--
Michal Hocko
SUSE Labs
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