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a4b79af6c7
The temporary local variable 'nd' is redundant. Directly assign the virtual address to node_data[nid] to simplify the code. No functional change. Link: https://lkml.kernel.org/r/20250427100442.958352-4-ye.liu@linux.dev Signed-off-by: Ye Liu <liuye@kylinos.cn> Acked-by: David Hildenbrand <david@redhat.com> Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org> Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Rik van Riel <riel@surriel.com> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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#include <linux/memblock.h>
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#include <linux/printk.h>
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#include <linux/numa.h>
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#include <linux/numa_memblks.h>
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struct pglist_data *node_data[MAX_NUMNODES];
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EXPORT_SYMBOL(node_data);
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/* Allocate NODE_DATA for a node on the local memory */
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void __init alloc_node_data(int nid)
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{
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const size_t nd_size = roundup(sizeof(pg_data_t), SMP_CACHE_BYTES);
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u64 nd_pa;
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int tnid;
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/* Allocate node data. Try node-local memory and then any node. */
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nd_pa = memblock_phys_alloc_try_nid(nd_size, SMP_CACHE_BYTES, nid);
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if (!nd_pa)
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panic("Cannot allocate %zu bytes for node %d data\n",
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nd_size, nid);
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/* report and initialize */
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pr_info("NODE_DATA(%d) allocated [mem %#010Lx-%#010Lx]\n", nid,
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nd_pa, nd_pa + nd_size - 1);
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tnid = early_pfn_to_nid(nd_pa >> PAGE_SHIFT);
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if (tnid != nid)
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pr_info(" NODE_DATA(%d) on node %d\n", nid, tnid);
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node_data[nid] = __va(nd_pa);
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memset(NODE_DATA(nid), 0, sizeof(pg_data_t));
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}
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void __init alloc_offline_node_data(int nid)
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{
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pg_data_t *pgdat;
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node_data[nid] = memblock_alloc_or_panic(sizeof(*pgdat), SMP_CACHE_BYTES);
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}
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/* Stub functions: */
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#ifndef memory_add_physaddr_to_nid
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int memory_add_physaddr_to_nid(u64 start)
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{
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pr_info_once("Unknown online node for memory at 0x%llx, assuming node 0\n",
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start);
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return 0;
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}
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EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
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#endif
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#ifndef phys_to_target_node
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int phys_to_target_node(u64 start)
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{
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pr_info_once("Unknown target node for memory at 0x%llx, assuming node 0\n",
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start);
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return 0;
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}
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EXPORT_SYMBOL_GPL(phys_to_target_node);
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#endif
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