From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: ADUXVKJveTFQdERg9c3rpk2GdMU5vZILwtdPXLq/rJEChfncJmoNnuNSs2d0Z+jKskFuoH9hmccy ARC-Seal: i=1; a=rsa-sha256; t=1527099860; cv=none; d=google.com; s=arc-20160816; b=UGd+1VUyMrSsimZxUpoytUGm04aQYnwBnSyRfLhxDuMAKKF11owzk2o8d9ShjVDhlG U6I/AAvzmgMUATghwcFSHwvEvZC/qxH5iG/26phHmPOVCPXV6ed0z7Kdo/OwfsJtm8x4 Vai/+q0knsDqq8xHB3/RWGrbXrHRVuVdqOCeI+9BYzrjz8+vWivrQzS/QviqgcCegfSg bRe2ltEqxwXvSAS7RTYcHcLBOPLOhjdm1+curkFDHEQwU8Cz7o906rPnpr4pCZtnI8hY EKMiruFDpJ2J9LkgQ23mu1ycOyoR6qQuaHMXh/m0Y0tLqVm4b5LG7nfdw1HD4U9l9Et6 BkiQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=references:in-reply-to:message-id:date:subject:cc:to:from :arc-authentication-results; bh=REPMrlCXk+bNlz+Pg6nTiOLOP5N73fEEXA1YvcSxsVE=; b=ww6fa/Rpt4s0PNiZHONNnNE6Vzadd1DKmLo6tIcUWfAsj1vHpracmWQgMvNEODWyJn doEYMQZSRwzU7/aXJkVezHCB26y0GOs3UpulfFlS0Jj/7KmMF+jkPcJmINnLeqekhwcF AIB29bJ9bXfifGoo2t4yoX6n/y/KyFp9W/IEQ87gPqHFSeWSzx6rD+JFjW8SrDWYnHHq JuS5v2yI4XMjBvA5qeipimNriPEnozuEgJJ0OImH6jGvHTqhzLOgvOHTk+R0qgSzRRqx b4uftttpYKlJxFkk/DvVrF+XoqV8+N1o4oLt01ihY0XuAZ+1B0KDYfyb6Uro2QHxOeME Hs3Q== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of david@redhat.com designates 66.187.233.73 as permitted sender) smtp.mailfrom=david@redhat.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Authentication-Results: mx.google.com; spf=pass (google.com: domain of david@redhat.com designates 66.187.233.73 as permitted sender) smtp.mailfrom=david@redhat.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com From: David Hildenbrand To: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org, David Hildenbrand , Martin Schwidefsky , Heiko Carstens , Michal Hocko , Andrew Morton , Vlastimil Babka , Greg Kroah-Hartman , linux-s390@vger.kernel.org Subject: [PATCH RFCv2 3/4] s390: numa: implement memory_add_physaddr_to_nid() Date: Wed, 23 May 2018 20:24:03 +0200 Message-Id: <20180523182404.11433-4-david@redhat.com> In-Reply-To: <20180523182404.11433-1-david@redhat.com> References: <20180523182404.11433-1-david@redhat.com> X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1601280263006044533?= X-GMAIL-MSGID: =?utf-8?q?1601280263006044533?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: The common interface to be used with add_memory(). Cc: Martin Schwidefsky Cc: Heiko Carstens Cc: Michal Hocko Cc: Andrew Morton Cc: Vlastimil Babka Cc: Greg Kroah-Hartman Cc: linux-s390@vger.kernel.org Signed-off-by: David Hildenbrand --- arch/s390/numa/numa.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/s390/numa/numa.c b/arch/s390/numa/numa.c index 06a80434cfe6..8902652ab3e5 100644 --- a/arch/s390/numa/numa.c +++ b/arch/s390/numa/numa.c @@ -44,6 +44,18 @@ int numa_pfn_to_nid(unsigned long pfn) return mode->__pfn_to_nid ? mode->__pfn_to_nid(pfn) : 0; } +#ifdef CONFIG_MEMORY_HOTPLUG +int memory_add_physaddr_to_nid(u64 addr) +{ + int nid = numa_pfn_to_nid(PFN_DOWN(addr)); + + if (nid < 0) + return 0; + return nid; +} +EXPORT_SYMBOL(memory_add_physaddr_to_nid); +#endif + void numa_update_cpu_topology(void) { if (mode->update_cpu_topology) -- 2.17.0