mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-24 01:41:39 +00:00
8a7f97b902
Add check for the return value of memblock_alloc*() functions and call
panic() in case of error. The panic message repeats the one used by
panicing memblock allocators with adjustment of parameters to include
only relevant ones.
The replacement was mostly automated with semantic patches like the one
below with manual massaging of format strings.
@@
expression ptr, size, align;
@@
ptr = memblock_alloc(size, align);
+ if (!ptr)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n", __func__, size, align);
[anders.roxell@linaro.org: use '%pa' with 'phys_addr_t' type]
Link: http://lkml.kernel.org/r/20190131161046.21886-1-anders.roxell@linaro.org
[rppt@linux.ibm.com: fix format strings for panics after memblock_alloc]
Link: http://lkml.kernel.org/r/1548950940-15145-1-git-send-email-rppt@linux.ibm.com
[rppt@linux.ibm.com: don't panic if the allocation in sparse_buffer_init fails]
Link: http://lkml.kernel.org/r/20190131074018.GD28876@rapoport-lnx
[akpm@linux-foundation.org: fix xtensa printk warning]
Link: http://lkml.kernel.org/r/1548057848-15136-20-git-send-email-rppt@linux.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Reviewed-by: Guo Ren <ren_guo@c-sky.com> [c-sky]
Acked-by: Paul Burton <paul.burton@mips.com> [MIPS]
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> [s390]
Reviewed-by: Juergen Gross <jgross@suse.com> [Xen]
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> [m68k]
Acked-by: Max Filippov <jcmvbkbc@gmail.com> [xtensa]
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: Christoph Hellwig <hch@lst.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Guo Ren <guoren@kernel.org>
Cc: Mark Salter <msalter@redhat.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Rich Felker <dalias@libc.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vineet Gupta <vgupta@synopsys.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>
59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
/*
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* arch/sh/mm/numa.c - Multiple node support for SH machines
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*
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* Copyright (C) 2007 Paul Mundt
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#include <linux/module.h>
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#include <linux/memblock.h>
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#include <linux/mm.h>
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#include <linux/numa.h>
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#include <linux/pfn.h>
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#include <asm/sections.h>
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struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
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EXPORT_SYMBOL_GPL(node_data);
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/*
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* On SH machines the conventional approach is to stash system RAM
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* in node 0, and other memory blocks in to node 1 and up, ordered by
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* latency. Each node's pgdat is node-local at the beginning of the node,
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* immediately followed by the node mem map.
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*/
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void __init setup_bootmem_node(int nid, unsigned long start, unsigned long end)
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{
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unsigned long start_pfn, end_pfn;
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/* Don't allow bogus node assignment */
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BUG_ON(nid >= MAX_NUMNODES || nid <= 0);
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start_pfn = PFN_DOWN(start);
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end_pfn = PFN_DOWN(end);
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pmb_bolt_mapping((unsigned long)__va(start), start, end - start,
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PAGE_KERNEL);
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memblock_add(start, end - start);
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__add_active_range(nid, start_pfn, end_pfn);
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/* Node-local pgdat */
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NODE_DATA(nid) = memblock_alloc_node(sizeof(struct pglist_data),
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SMP_CACHE_BYTES, nid);
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if (!NODE_DATA(nid))
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panic("%s: Failed to allocate %zu bytes align=0x%x nid=%d\n",
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__func__, sizeof(struct pglist_data), SMP_CACHE_BYTES,
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nid);
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NODE_DATA(nid)->node_start_pfn = start_pfn;
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NODE_DATA(nid)->node_spanned_pages = end_pfn - start_pfn;
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/* It's up */
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node_set_online(nid);
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/* Kick sparsemem */
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sparse_memory_present_with_active_regions(nid);
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}
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