Subject: + mm-memblock-switch-to-use-numa_no_node-instead-of-max_numnodes.patch added to -mm tree To: grygorii.strashko@xxxxxx,arnd@xxxxxxxx,cl@xxxxxxxxxxxxxxxxxxxx,gregkh@xxxxxxxxxxxxxxxxxxx,hannes@xxxxxxxxxxx,hpa@xxxxxxxxx,kamezawa.hiroyu@xxxxxxxxxxxxxx,konrad.wilk@xxxxxxxxxx,linux@xxxxxxxxxxxxxxxx,mhocko@xxxxxxx,paul@xxxxxxxxx,pavel@xxxxxx,rjw@xxxxxxx,santosh.shilimkar@xxxxxx,tj@xxxxxxxxxx,tony@xxxxxxxxxxx,yinghai@xxxxxxxxxx From: akpm@xxxxxxxxxxxxxxxxxxxx Date: Mon, 09 Dec 2013 16:29:09 -0800 The patch titled Subject: mm/memblock: switch to use NUMA_NO_NODE instead of MAX_NUMNODES has been added to the -mm tree. Its filename is mm-memblock-switch-to-use-numa_no_node-instead-of-max_numnodes.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/mm-memblock-switch-to-use-numa_no_node-instead-of-max_numnodes.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/mm-memblock-switch-to-use-numa_no_node-instead-of-max_numnodes.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Grygorii Strashko <grygorii.strashko@xxxxxx> Subject: mm/memblock: switch to use NUMA_NO_NODE instead of MAX_NUMNODES It's recommended to use NUMA_NO_NODE everywhere to select "process any node" behavior or to indicate that "no node id specified". Hence, update __next_free_mem_range*() API's to accept both NUMA_NO_NODE and MAX_NUMNODES, but emit warning once on MAX_NUMNODES, and correct corresponding API's documentation to describe new behavior. Also, update other memblock/nobootmem APIs where MAX_NUMNODES is used dirrectly. The change was suggested by Tejun Heo. Signed-off-by: Grygorii Strashko <grygorii.strashko@xxxxxx> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@xxxxxx> Cc: Yinghai Lu <yinghai@xxxxxxxxxx> Cc: Tejun Heo <tj@xxxxxxxxxx> Cc: "Rafael J. Wysocki" <rjw@xxxxxxx> Cc: Arnd Bergmann <arnd@xxxxxxxx> Cc: Christoph Lameter <cl@xxxxxxxxxxxxxxxxxxxx> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Cc: H. Peter Anvin <hpa@xxxxxxxxx> Cc: Johannes Weiner <hannes@xxxxxxxxxxx> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> Cc: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> Cc: Michal Hocko <mhocko@xxxxxxx> Cc: Paul Walmsley <paul@xxxxxxxxx> Cc: Pavel Machek <pavel@xxxxxx> Cc: Russell King <linux@xxxxxxxxxxxxxxxx> Cc: Tony Lindgren <tony@xxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/linux/memblock.h | 4 ++-- mm/memblock.c | 28 +++++++++++++++++++--------- mm/nobootmem.c | 8 ++++---- 3 files changed, 25 insertions(+), 15 deletions(-) diff -puN include/linux/memblock.h~mm-memblock-switch-to-use-numa_no_node-instead-of-max_numnodes include/linux/memblock.h --- a/include/linux/memblock.h~mm-memblock-switch-to-use-numa_no_node-instead-of-max_numnodes +++ a/include/linux/memblock.h @@ -118,7 +118,7 @@ void __next_free_mem_range(u64 *idx, int /** * for_each_free_mem_range - iterate through free memblock areas * @i: u64 used as loop variable - * @nid: node selector, %MAX_NUMNODES for all nodes + * @nid: node selector, %NUMA_NO_NODE for all nodes * @p_start: ptr to phys_addr_t for start address of the range, can be %NULL * @p_end: ptr to phys_addr_t for end address of the range, can be %NULL * @p_nid: ptr to int for nid of the range, can be %NULL @@ -138,7 +138,7 @@ void __next_free_mem_range_rev(u64 *idx, /** * for_each_free_mem_range_reverse - rev-iterate through free memblock areas * @i: u64 used as loop variable - * @nid: node selector, %MAX_NUMNODES for all nodes + * @nid: node selector, %NUMA_NO_NODE for all nodes * @p_start: ptr to phys_addr_t for start address of the range, can be %NULL * @p_end: ptr to phys_addr_t for end address of the range, can be %NULL * @p_nid: ptr to int for nid of the range, can be %NULL diff -puN mm/memblock.c~mm-memblock-switch-to-use-numa_no_node-instead-of-max_numnodes mm/memblock.c --- a/mm/memblock.c~mm-memblock-switch-to-use-numa_no_node-instead-of-max_numnodes +++ a/mm/memblock.c @@ -94,7 +94,7 @@ static long __init_memblock memblock_ove * @end: end of candidate range, can be %MEMBLOCK_ALLOC_{ANYWHERE|ACCESSIBLE} * @size: size of free area to find * @align: alignment of free area to find - * @nid: nid of the free area to find, %MAX_NUMNODES for any node + * @nid: nid of the free area to find, %NUMA_NO_NODE for any node * * Utility called from memblock_find_in_range_node(), find free area bottom-up. * @@ -126,7 +126,7 @@ __memblock_find_range_bottom_up(phys_add * @end: end of candidate range, can be %MEMBLOCK_ALLOC_{ANYWHERE|ACCESSIBLE} * @size: size of free area to find * @align: alignment of free area to find - * @nid: nid of the free area to find, %MAX_NUMNODES for any node + * @nid: nid of the free area to find, %NUMA_NO_NODE for any node * * Utility called from memblock_find_in_range_node(), find free area top-down. * @@ -161,7 +161,7 @@ __memblock_find_range_top_down(phys_addr * @align: alignment of free area to find * @start: start of candidate range * @end: end of candidate range, can be %MEMBLOCK_ALLOC_{ANYWHERE|ACCESSIBLE} - * @nid: nid of the free area to find, %MAX_NUMNODES for any node + * @nid: nid of the free area to find, %NUMA_NO_NODE for any node * * Find @size free area aligned to @align in the specified range and node. * @@ -242,7 +242,7 @@ phys_addr_t __init_memblock memblock_fin phys_addr_t align) { return memblock_find_in_range_node(size, align, start, end, - MAX_NUMNODES); + NUMA_NO_NODE); } static void __init_memblock memblock_remove_region(struct memblock_type *type, unsigned long r) @@ -754,7 +754,7 @@ int __init_memblock memblock_clear_hotpl /** * __next_free_mem_range - next function for for_each_free_mem_range() * @idx: pointer to u64 loop variable - * @nid: node selector, %MAX_NUMNODES for all nodes + * @nid: node selector, %NUMA_NO_NODE for all nodes * @out_start: ptr to phys_addr_t for start address of the range, can be %NULL * @out_end: ptr to phys_addr_t for end address of the range, can be %NULL * @out_nid: ptr to int for nid of the range, can be %NULL @@ -782,6 +782,11 @@ void __init_memblock __next_free_mem_ran struct memblock_type *rsv = &memblock.reserved; int mi = *idx & 0xffffffff; int ri = *idx >> 32; + bool check_node = (nid != NUMA_NO_NODE) && (nid != MAX_NUMNODES); + + if (nid == MAX_NUMNODES) + pr_warn_once("%s: Usage of MAX_NUMNODES is depricated. Use NUMA_NO_NODE instead\n", + __func__); for ( ; mi < mem->cnt; mi++) { struct memblock_region *m = &mem->regions[mi]; @@ -789,7 +794,7 @@ void __init_memblock __next_free_mem_ran phys_addr_t m_end = m->base + m->size; /* only memory regions are associated with nodes, check it */ - if (nid != MAX_NUMNODES && nid != memblock_get_region_node(m)) + if (check_node && nid != memblock_get_region_node(m)) continue; /* scan areas before each reservation for intersection */ @@ -830,7 +835,7 @@ void __init_memblock __next_free_mem_ran /** * __next_free_mem_range_rev - next function for for_each_free_mem_range_reverse() * @idx: pointer to u64 loop variable - * @nid: nid: node selector, %MAX_NUMNODES for all nodes + * @nid: nid: node selector, %NUMA_NO_NODE for all nodes * @out_start: ptr to phys_addr_t for start address of the range, can be %NULL * @out_end: ptr to phys_addr_t for end address of the range, can be %NULL * @out_nid: ptr to int for nid of the range, can be %NULL @@ -850,6 +855,11 @@ void __init_memblock __next_free_mem_ran struct memblock_type *rsv = &memblock.reserved; int mi = *idx & 0xffffffff; int ri = *idx >> 32; + bool check_node = (nid != NUMA_NO_NODE) && (nid != MAX_NUMNODES); + + if (nid == MAX_NUMNODES) + pr_warn_once("%s: Usage of MAX_NUMNODES is depricated. Use NUMA_NO_NODE instead\n", + __func__); if (*idx == (u64)ULLONG_MAX) { mi = mem->cnt - 1; @@ -862,7 +872,7 @@ void __init_memblock __next_free_mem_ran phys_addr_t m_end = m->base + m->size; /* only memory regions are associated with nodes, check it */ - if (nid != MAX_NUMNODES && nid != memblock_get_region_node(m)) + if (check_node && nid != memblock_get_region_node(m)) continue; /* skip hotpluggable memory regions if needed */ @@ -989,7 +999,7 @@ phys_addr_t __init memblock_alloc_nid(ph phys_addr_t __init __memblock_alloc_base(phys_addr_t size, phys_addr_t align, phys_addr_t max_addr) { - return memblock_alloc_base_nid(size, align, max_addr, MAX_NUMNODES); + return memblock_alloc_base_nid(size, align, max_addr, NUMA_NO_NODE); } phys_addr_t __init memblock_alloc_base(phys_addr_t size, phys_addr_t align, phys_addr_t max_addr) diff -puN mm/nobootmem.c~mm-memblock-switch-to-use-numa_no_node-instead-of-max_numnodes mm/nobootmem.c --- a/mm/nobootmem.c~mm-memblock-switch-to-use-numa_no_node-instead-of-max_numnodes +++ a/mm/nobootmem.c @@ -117,7 +117,7 @@ static unsigned long __init free_low_mem phys_addr_t start, end, size; u64 i; - for_each_free_mem_range(i, MAX_NUMNODES, &start, &end, NULL) + for_each_free_mem_range(i, NUMA_NO_NODE, &start, &end, NULL) count += __free_memory_core(start, end); /* free range that is used for reserved array if we allocate it */ @@ -161,7 +161,7 @@ unsigned long __init free_all_bootmem(vo reset_all_zones_managed_pages(); /* - * We need to use MAX_NUMNODES instead of NODE_DATA(0)->node_id + * We need to use NUMA_NO_NODE instead of NODE_DATA(0)->node_id * because in some case like Node0 doesn't have RAM installed * low ram will be on Node1 */ @@ -215,7 +215,7 @@ static void * __init ___alloc_bootmem_no restart: - ptr = __alloc_memory_core_early(MAX_NUMNODES, size, align, goal, limit); + ptr = __alloc_memory_core_early(NUMA_NO_NODE, size, align, goal, limit); if (ptr) return ptr; @@ -299,7 +299,7 @@ again: if (ptr) return ptr; - ptr = __alloc_memory_core_early(MAX_NUMNODES, size, align, + ptr = __alloc_memory_core_early(NUMA_NO_NODE, size, align, goal, limit); if (ptr) return ptr; _ Patches currently in -mm which might be from grygorii.strashko@xxxxxx are mm-memblock-debug-correct-displaying-of-upper-memory-boundary.patch mm-memblock-debug-dont-free-reserved-array-if-arch_discard_memblock.patch mm-bootmem-remove-duplicated-declaration-of-__free_pages_bootmem.patch mm-memblock-remove-unnecessary-inclusions-of-bootmemh.patch mm-memblock-drop-warn-and-use-smp_cache_bytes-as-a-default-alignment.patch mm-memblock-reorder-parameters-of-memblock_find_in_range_node.patch mm-memblock-switch-to-use-numa_no_node-instead-of-max_numnodes.patch mm-memblock-add-memblock-memory-allocation-apis.patch mm-memblock-add-memblock-memory-allocation-apis-fix.patch mm-init-use-memblock-apis-for-early-memory-allocations.patch mm-printk-use-memblock-apis-for-early-memory-allocations.patch mm-page_alloc-use-memblock-apis-for-early-memory-allocations.patch mm-power-use-memblock-apis-for-early-memory-allocations.patch lib-swiotlbc-use-memblock-apis-for-early-memory-allocations.patch lib-cpumaskc-use-memblock-apis-for-early-memory-allocations.patch mm-sparse-use-memblock-apis-for-early-memory-allocations.patch mm-hugetlb-use-memblock-apis-for-early-memory-allocations.patch mm-page_cgroup-use-memblock-apis-for-early-memory-allocations.patch mm-percpu-use-memblock-apis-for-early-memory-allocations.patch mm-memory_hotplug-use-memblock-apis-for-early-memory-allocations.patch drivers-firmware-memmapc-use-memblock-apis-for-early-memory-allocations.patch arch-arm-kernel-use-memblock-apis-for-early-memory-allocations.patch arch-arm-mm-initc-use-memblock-apis-for-early-memory-allocations.patch arch-arm-mach-omap2-omap_hwmodc-use-memblock-apis-for-early-memory-allocations.patch rtc-rtc-twl-use-devm_-functions.patch rtc-rtc-vr41xx-use-devm_-functions.patch linux-next.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html