diff options
| -rw-r--r-- | include/linux/memblock.h | 5 | ||||
| -rw-r--r-- | mm/memblock.c | 19 | ||||
| -rw-r--r-- | mm/numa_emulation.c | 4 | ||||
| -rw-r--r-- | mm/numa_memblks.c | 6 |
4 files changed, 21 insertions, 13 deletions
diff --git a/include/linux/memblock.h b/include/linux/memblock.h index b96746376e17..fcda8481de9a 100644 --- a/include/linux/memblock.h +++ b/include/linux/memblock.h @@ -40,8 +40,9 @@ extern unsigned long long max_possible_pfn; * via a driver, and never indicated in the firmware-provided memory map as * system RAM. This corresponds to IORESOURCE_SYSRAM_DRIVER_MANAGED in the * kernel resource tree. - * @MEMBLOCK_RSRV_NOINIT: memory region for which struct pages are - * not initialized (only for reserved regions). + * @MEMBLOCK_RSRV_NOINIT: reserved memory region for which struct pages are not + * fully initialized. Users of this flag are responsible to properly initialize + * struct pages of this region * @MEMBLOCK_RSRV_KERN: memory region that is reserved for kernel use, * either explictitly with memblock_reserve_kern() or via memblock * allocation APIs. All memblock allocations set this flag. diff --git a/mm/memblock.c b/mm/memblock.c index 154f1d73b61f..117d963e677c 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -780,9 +780,9 @@ bool __init_memblock memblock_validate_numa_coverage(unsigned long threshold_byt } if ((nr_pages << PAGE_SHIFT) > threshold_bytes) { - mem_size_mb = memblock_phys_mem_size() >> 20; + mem_size_mb = memblock_phys_mem_size() / SZ_1M; pr_err("NUMA: no nodes coverage for %luMB of %luMB RAM\n", - (nr_pages << PAGE_SHIFT) >> 20, mem_size_mb); + (nr_pages << PAGE_SHIFT) / SZ_1M, mem_size_mb); return false; } @@ -1091,13 +1091,20 @@ int __init_memblock memblock_clear_nomap(phys_addr_t base, phys_addr_t size) /** * memblock_reserved_mark_noinit - Mark a reserved memory region with flag - * MEMBLOCK_RSRV_NOINIT which results in the struct pages not being initialized - * for this region. + * MEMBLOCK_RSRV_NOINIT + * * @base: the base phys addr of the region * @size: the size of the region * - * struct pages will not be initialized for reserved memory regions marked with - * %MEMBLOCK_RSRV_NOINIT. + * The struct pages for the reserved regions marked %MEMBLOCK_RSRV_NOINIT will + * not be fully initialized to allow the caller optimize their initialization. + * + * When %CONFIG_DEFERRED_STRUCT_PAGE_INIT is enabled, setting this flag + * completely bypasses the initialization of struct pages for such region. + * + * When %CONFIG_DEFERRED_STRUCT_PAGE_INIT is disabled, struct pages in this + * region will be initialized with default values but won't be marked as + * reserved. * * Return: 0 on success, -errno on failure. */ diff --git a/mm/numa_emulation.c b/mm/numa_emulation.c index 9d55679d99ce..703c8fa05048 100644 --- a/mm/numa_emulation.c +++ b/mm/numa_emulation.c @@ -73,7 +73,7 @@ static int __init emu_setup_memblk(struct numa_meminfo *ei, } printk(KERN_INFO "Faking node %d at [mem %#018Lx-%#018Lx] (%LuMB)\n", - nid, eb->start, eb->end - 1, (eb->end - eb->start) >> 20); + nid, eb->start, eb->end - 1, (eb->end - eb->start) / SZ_1M); return 0; } @@ -264,7 +264,7 @@ static int __init split_nodes_size_interleave_uniform(struct numa_meminfo *ei, min_size = ALIGN(max(min_size, FAKE_NODE_MIN_SIZE), FAKE_NODE_MIN_SIZE); if (size < min_size) { pr_err("Fake node size %LuMB too small, increasing to %LuMB\n", - size >> 20, min_size >> 20); + size / SZ_1M, min_size / SZ_1M); size = min_size; } size = ALIGN_DOWN(size, FAKE_NODE_MIN_SIZE); diff --git a/mm/numa_memblks.c b/mm/numa_memblks.c index 541a99c4071a..5b009a9cd8b4 100644 --- a/mm/numa_memblks.c +++ b/mm/numa_memblks.c @@ -76,7 +76,7 @@ static int __init numa_alloc_distance(void) for (j = 0; j < cnt; j++) numa_distance[i * cnt + j] = i == j ? LOCAL_DISTANCE : REMOTE_DISTANCE; - printk(KERN_DEBUG "NUMA: Initialized distance table, cnt=%d\n", cnt); + pr_debug("NUMA: Initialized distance table, cnt=%d\n", cnt); return 0; } @@ -427,9 +427,9 @@ static int __init numa_register_meminfo(struct numa_meminfo *mi) unsigned long pfn_align = node_map_pfn_alignment(); if (pfn_align && pfn_align < PAGES_PER_SECTION) { - unsigned long node_align_mb = PFN_PHYS(pfn_align) >> 20; + unsigned long node_align_mb = PFN_PHYS(pfn_align) / SZ_1M; - unsigned long sect_align_mb = PFN_PHYS(PAGES_PER_SECTION) >> 20; + unsigned long sect_align_mb = PFN_PHYS(PAGES_PER_SECTION) / SZ_1M; pr_warn("Node alignment %luMB < min %luMB, rejecting NUMA config\n", node_align_mb, sect_align_mb); |