Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753280AbaBNBCr (ORCPT ); Thu, 13 Feb 2014 20:02:47 -0500 Received: from mx1.redhat.com ([209.132.183.28]:11755 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753156AbaBNBCq (ORCPT ); Thu, 13 Feb 2014 20:02:46 -0500 From: Luiz Capitulino To: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org, akpm@linux-foundation.org, mtosatti@redhat.com, mgorman@suse.de, aarcange@redhat.com, andi@firstfloor.org, riel@redhat.com, davidlohr@hp.com, isimatu.yasuaki@jp.fujitsu.com, yinghai@kernel.org, rientjes@google.com Subject: [PATCH 2/4] memblock: add memblock_virt_alloc_nid_nopanic() Date: Thu, 13 Feb 2014 20:02:06 -0500 Message-Id: <1392339728-13487-3-git-send-email-lcapitulino@redhat.com> In-Reply-To: <1392339728-13487-1-git-send-email-lcapitulino@redhat.com> References: <1392339728-13487-1-git-send-email-lcapitulino@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Luiz capitulino This function tries to allocate memory from the specified node only (vs. falling back to other nodes). This is going to be used by HugeTLB boot-time allocation code in next commits. Signed-off-by: Luiz capitulino --- include/linux/bootmem.h | 4 ++++ mm/memblock.c | 30 ++++++++++++++++++++++++++++++ 2 files changed, 34 insertions(+) diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h index db51fe4..6961b11 100644 --- a/include/linux/bootmem.h +++ b/include/linux/bootmem.h @@ -153,6 +153,10 @@ extern void *__alloc_bootmem_low_node(pg_data_t *pgdat, void *memblock_virt_alloc_try_nid_nopanic(phys_addr_t size, phys_addr_t align, phys_addr_t min_addr, phys_addr_t max_addr, int nid); +void * __init memblock_virt_alloc_nid_nopanic( + phys_addr_t size, phys_addr_t align, + phys_addr_t min_addr, phys_addr_t max_addr, + int nid); void *memblock_virt_alloc_try_nid(phys_addr_t size, phys_addr_t align, phys_addr_t min_addr, phys_addr_t max_addr, int nid); void __memblock_free_early(phys_addr_t base, phys_addr_t size); diff --git a/mm/memblock.c b/mm/memblock.c index f3821ef..2a5d72e 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -1157,6 +1157,36 @@ void * __init memblock_virt_alloc_try_nid_nopanic( } /** + * memblock_virt_alloc_nid_nopanic - allocate boot memory block from + * specified node + * @size: size of memory block to be allocated in bytes + * @align: alignment of the region and block's size + * @min_addr: the lower bound of the memory region from where the allocation + * is preferred (phys address) + * @max_addr: the upper bound of the memory region from where the allocation + * is preferred (phys address), or %BOOTMEM_ALLOC_ACCESSIBLE to + * allocate only from memory limited by memblock.current_limit value + * @nid: nid of the free area to find, %NUMA_NO_NODE for any node + * + * This function tries to allocate memory from @nid only. It @nid doesn't + * have enough memory, this function returns failure. + * + * RETURNS: + * Virtual address of allocated memory block on success, NULL on failure. + */ +void * __init memblock_virt_alloc_nid_nopanic( + phys_addr_t size, phys_addr_t align, + phys_addr_t min_addr, phys_addr_t max_addr, + int nid) +{ + memblock_dbg("%s: %llu bytes align=0x%llx nid=%d from=0x%llx max_addr=0x%llx %pF\n", + __func__, (u64)size, (u64)align, nid, (u64)min_addr, + (u64)max_addr, (void *)_RET_IP_); + return memblock_virt_alloc_internal(size, align, min_addr, + max_addr, nid, __GFP_THISNODE); +} + +/** * memblock_virt_alloc_try_nid - allocate boot memory block with panicking * @size: size of memory block to be allocated in bytes * @align: alignment of the region and block's size -- 1.8.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/