From: Michal Hocko <mhocko@kernel.org> To: linux-mm@kvack.org Cc: Andrew Morton <akpm@linux-foundation.org>, Mel Gorman <mgorman@suse.de>, Vlastimil Babka <vbabka@suse.cz>, Andrea Arcangeli <aarcange@redhat.com>, Jerome Glisse <jglisse@redhat.com>, Reza Arbab <arbab@linux.vnet.ibm.com>, Yasuaki Ishimatsu <yasu.isimatu@gmail.com>, qiuxishi@huawei.com, Kani Toshimitsu <toshi.kani@hpe.com>, slaoub@gmail.com, Joonsoo Kim <js1304@gmail.com>, Andi Kleen <ak@linux.intel.com>, David Rientjes <rientjes@google.com>, Daniel Kiper <daniel.kiper@oracle.com>, Igor Mammedov <imammedo@redhat.com>, Vitaly Kuznetsov <vkuznets@redhat.com>, LKML <linux-kernel@vger.kernel.org>, Michal Hocko <mhocko@suse.com> Subject: [PATCH 13/13] mm, memory_hotplug: remove unused cruft after memory hotplug rework Date: Fri, 21 Apr 2017 14:22:22 +0200 [thread overview] Message-ID: <20170421122222.25040-1-mhocko@kernel.org> (raw) In-Reply-To: <20170421120512.23960-1-mhocko@kernel.org> From: Michal Hocko <mhocko@suse.com> zone_for_memory doesn't have any user anymore as well as the whole zone shifting infrastructure so drop them all. This shouldn't introduce any functional changes. Acked-by: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Michal Hocko <mhocko@suse.com> --- include/linux/memory_hotplug.h | 2 - mm/memory_hotplug.c | 207 ----------------------------------------- 2 files changed, 209 deletions(-) diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h index e1193c44aed1..aec88657ec49 100644 --- a/include/linux/memory_hotplug.h +++ b/include/linux/memory_hotplug.h @@ -295,8 +295,6 @@ extern int walk_memory_range(unsigned long start_pfn, unsigned long end_pfn, void *arg, int (*func)(struct memory_block *, void *)); extern int add_memory(int nid, u64 start, u64 size); extern int add_memory_resource(int nid, struct resource *resource, bool online); -extern int zone_for_memory(int nid, u64 start, u64 size, int zone_default, - bool for_device); extern int arch_add_memory(int nid, u64 start, u64 size, bool want_memblock); extern void move_pfn_range_to_zone(struct zone *zone, unsigned long start_pfn, unsigned long nr_pages); diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index f9e916a85792..de30822642c6 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -300,180 +300,6 @@ void __init register_page_bootmem_info_node(struct pglist_data *pgdat) } #endif /* CONFIG_HAVE_BOOTMEM_INFO_NODE */ -static void __meminit grow_zone_span(struct zone *zone, unsigned long start_pfn, - unsigned long end_pfn) -{ - unsigned long old_zone_end_pfn; - - zone_span_writelock(zone); - - old_zone_end_pfn = zone_end_pfn(zone); - if (zone_is_empty(zone) || start_pfn < zone->zone_start_pfn) - zone->zone_start_pfn = start_pfn; - - zone->spanned_pages = max(old_zone_end_pfn, end_pfn) - - zone->zone_start_pfn; - - zone_span_writeunlock(zone); -} - -static void resize_zone(struct zone *zone, unsigned long start_pfn, - unsigned long end_pfn) -{ - zone_span_writelock(zone); - - if (end_pfn - start_pfn) { - zone->zone_start_pfn = start_pfn; - zone->spanned_pages = end_pfn - start_pfn; - } else { - /* - * make it consist as free_area_init_core(), - * if spanned_pages = 0, then keep start_pfn = 0 - */ - zone->zone_start_pfn = 0; - zone->spanned_pages = 0; - } - - zone_span_writeunlock(zone); -} - -static void fix_zone_id(struct zone *zone, unsigned long start_pfn, - unsigned long end_pfn) -{ - enum zone_type zid = zone_idx(zone); - int nid = zone->zone_pgdat->node_id; - unsigned long pfn; - - for (pfn = start_pfn; pfn < end_pfn; pfn++) - set_page_links(pfn_to_page(pfn), zid, nid, pfn); -} - -static void __ref ensure_zone_is_initialized(struct zone *zone, - unsigned long start_pfn, unsigned long num_pages) -{ - if (!zone_is_initialized(zone)) - init_currently_empty_zone(zone, start_pfn, num_pages); -} - -static int __meminit move_pfn_range_left(struct zone *z1, struct zone *z2, - unsigned long start_pfn, unsigned long end_pfn) -{ - unsigned long flags; - unsigned long z1_start_pfn; - - ensure_zone_is_initialized(z1, start_pfn, end_pfn - start_pfn); - - pgdat_resize_lock(z1->zone_pgdat, &flags); - - /* can't move pfns which are higher than @z2 */ - if (end_pfn > zone_end_pfn(z2)) - goto out_fail; - /* the move out part must be at the left most of @z2 */ - if (start_pfn > z2->zone_start_pfn) - goto out_fail; - /* must included/overlap */ - if (end_pfn <= z2->zone_start_pfn) - goto out_fail; - - /* use start_pfn for z1's start_pfn if z1 is empty */ - if (!zone_is_empty(z1)) - z1_start_pfn = z1->zone_start_pfn; - else - z1_start_pfn = start_pfn; - - resize_zone(z1, z1_start_pfn, end_pfn); - resize_zone(z2, end_pfn, zone_end_pfn(z2)); - - pgdat_resize_unlock(z1->zone_pgdat, &flags); - - fix_zone_id(z1, start_pfn, end_pfn); - - return 0; -out_fail: - pgdat_resize_unlock(z1->zone_pgdat, &flags); - return -1; -} - -static int __meminit move_pfn_range_right(struct zone *z1, struct zone *z2, - unsigned long start_pfn, unsigned long end_pfn) -{ - unsigned long flags; - unsigned long z2_end_pfn; - - ensure_zone_is_initialized(z2, start_pfn, end_pfn - start_pfn); - - pgdat_resize_lock(z1->zone_pgdat, &flags); - - /* can't move pfns which are lower than @z1 */ - if (z1->zone_start_pfn > start_pfn) - goto out_fail; - /* the move out part mast at the right most of @z1 */ - if (zone_end_pfn(z1) > end_pfn) - goto out_fail; - /* must included/overlap */ - if (start_pfn >= zone_end_pfn(z1)) - goto out_fail; - - /* use end_pfn for z2's end_pfn if z2 is empty */ - if (!zone_is_empty(z2)) - z2_end_pfn = zone_end_pfn(z2); - else - z2_end_pfn = end_pfn; - - resize_zone(z1, z1->zone_start_pfn, start_pfn); - resize_zone(z2, start_pfn, z2_end_pfn); - - pgdat_resize_unlock(z1->zone_pgdat, &flags); - - fix_zone_id(z2, start_pfn, end_pfn); - - return 0; -out_fail: - pgdat_resize_unlock(z1->zone_pgdat, &flags); - return -1; -} - -static void __meminit grow_pgdat_span(struct pglist_data *pgdat, unsigned long start_pfn, - unsigned long end_pfn) -{ - unsigned long old_pgdat_end_pfn = pgdat_end_pfn(pgdat); - - if (!pgdat->node_spanned_pages || start_pfn < pgdat->node_start_pfn) - pgdat->node_start_pfn = start_pfn; - - pgdat->node_spanned_pages = max(old_pgdat_end_pfn, end_pfn) - - pgdat->node_start_pfn; -} - -static int __meminit __add_zone(struct zone *zone, unsigned long phys_start_pfn) -{ - struct pglist_data *pgdat = zone->zone_pgdat; - int nr_pages = PAGES_PER_SECTION; - int nid = pgdat->node_id; - int zone_type; - unsigned long flags, pfn; - - zone_type = zone - pgdat->node_zones; - ensure_zone_is_initialized(zone, phys_start_pfn, nr_pages); - - pgdat_resize_lock(zone->zone_pgdat, &flags); - grow_zone_span(zone, phys_start_pfn, phys_start_pfn + nr_pages); - grow_pgdat_span(zone->zone_pgdat, phys_start_pfn, - phys_start_pfn + nr_pages); - pgdat_resize_unlock(zone->zone_pgdat, &flags); - memmap_init_zone(nr_pages, nid, zone_type, - phys_start_pfn, MEMMAP_HOTPLUG); - - /* online_page_range is called later and expects pages reserved */ - for (pfn = phys_start_pfn; pfn < phys_start_pfn + nr_pages; pfn++) { - if (!pfn_valid(pfn)) - continue; - - SetPageReserved(pfn_to_page(pfn)); - } - return 0; -} - static int __meminit __add_section(int nid, unsigned long phys_start_pfn, bool want_memblock) { @@ -1352,39 +1178,6 @@ static int check_hotplug_memory_range(u64 start, u64 size) return 0; } -/* - * If movable zone has already been setup, newly added memory should be check. - * If its address is higher than movable zone, it should be added as movable. - * Without this check, movable zone may overlap with other zone. - */ -static int should_add_memory_movable(int nid, u64 start, u64 size) -{ - unsigned long start_pfn = start >> PAGE_SHIFT; - pg_data_t *pgdat = NODE_DATA(nid); - struct zone *movable_zone = pgdat->node_zones + ZONE_MOVABLE; - - if (zone_is_empty(movable_zone)) - return 0; - - if (movable_zone->zone_start_pfn <= start_pfn) - return 1; - - return 0; -} - -int zone_for_memory(int nid, u64 start, u64 size, int zone_default, - bool for_device) -{ -#ifdef CONFIG_ZONE_DEVICE - if (for_device) - return ZONE_DEVICE; -#endif - if (should_add_memory_movable(nid, start, size)) - return ZONE_MOVABLE; - - return zone_default; -} - static int online_memory_block(struct memory_block *mem, void *arg) { return device_online(&mem->dev); -- 2.11.0
WARNING: multiple messages have this Message-ID (diff)
From: Michal Hocko <mhocko@kernel.org> To: linux-mm@kvack.org Cc: Andrew Morton <akpm@linux-foundation.org>, Mel Gorman <mgorman@suse.de>, Vlastimil Babka <vbabka@suse.cz>, Andrea Arcangeli <aarcange@redhat.com>, Jerome Glisse <jglisse@redhat.com>, Reza Arbab <arbab@linux.vnet.ibm.com>, Yasuaki Ishimatsu <yasu.isimatu@gmail.com>, qiuxishi@huawei.com, Kani Toshimitsu <toshi.kani@hpe.com>, slaoub@gmail.com, Joonsoo Kim <js1304@gmail.com>, Andi Kleen <ak@linux.intel.com>, David Rientjes <rientjes@google.com>, Daniel Kiper <daniel.kiper@oracle.com>, Igor Mammedov <imammedo@redhat.com>, Vitaly Kuznetsov <vkuznets@redhat.com>, LKML <linux-kernel@vger.kernel.org>, Michal Hocko <mhocko@suse.com> Subject: [PATCH 13/13] mm, memory_hotplug: remove unused cruft after memory hotplug rework Date: Fri, 21 Apr 2017 14:22:22 +0200 [thread overview] Message-ID: <20170421122222.25040-1-mhocko@kernel.org> (raw) In-Reply-To: <20170421120512.23960-1-mhocko@kernel.org> From: Michal Hocko <mhocko@suse.com> zone_for_memory doesn't have any user anymore as well as the whole zone shifting infrastructure so drop them all. This shouldn't introduce any functional changes. Acked-by: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Michal Hocko <mhocko@suse.com> --- include/linux/memory_hotplug.h | 2 - mm/memory_hotplug.c | 207 ----------------------------------------- 2 files changed, 209 deletions(-) diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h index e1193c44aed1..aec88657ec49 100644 --- a/include/linux/memory_hotplug.h +++ b/include/linux/memory_hotplug.h @@ -295,8 +295,6 @@ extern int walk_memory_range(unsigned long start_pfn, unsigned long end_pfn, void *arg, int (*func)(struct memory_block *, void *)); extern int add_memory(int nid, u64 start, u64 size); extern int add_memory_resource(int nid, struct resource *resource, bool online); -extern int zone_for_memory(int nid, u64 start, u64 size, int zone_default, - bool for_device); extern int arch_add_memory(int nid, u64 start, u64 size, bool want_memblock); extern void move_pfn_range_to_zone(struct zone *zone, unsigned long start_pfn, unsigned long nr_pages); diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index f9e916a85792..de30822642c6 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -300,180 +300,6 @@ void __init register_page_bootmem_info_node(struct pglist_data *pgdat) } #endif /* CONFIG_HAVE_BOOTMEM_INFO_NODE */ -static void __meminit grow_zone_span(struct zone *zone, unsigned long start_pfn, - unsigned long end_pfn) -{ - unsigned long old_zone_end_pfn; - - zone_span_writelock(zone); - - old_zone_end_pfn = zone_end_pfn(zone); - if (zone_is_empty(zone) || start_pfn < zone->zone_start_pfn) - zone->zone_start_pfn = start_pfn; - - zone->spanned_pages = max(old_zone_end_pfn, end_pfn) - - zone->zone_start_pfn; - - zone_span_writeunlock(zone); -} - -static void resize_zone(struct zone *zone, unsigned long start_pfn, - unsigned long end_pfn) -{ - zone_span_writelock(zone); - - if (end_pfn - start_pfn) { - zone->zone_start_pfn = start_pfn; - zone->spanned_pages = end_pfn - start_pfn; - } else { - /* - * make it consist as free_area_init_core(), - * if spanned_pages = 0, then keep start_pfn = 0 - */ - zone->zone_start_pfn = 0; - zone->spanned_pages = 0; - } - - zone_span_writeunlock(zone); -} - -static void fix_zone_id(struct zone *zone, unsigned long start_pfn, - unsigned long end_pfn) -{ - enum zone_type zid = zone_idx(zone); - int nid = zone->zone_pgdat->node_id; - unsigned long pfn; - - for (pfn = start_pfn; pfn < end_pfn; pfn++) - set_page_links(pfn_to_page(pfn), zid, nid, pfn); -} - -static void __ref ensure_zone_is_initialized(struct zone *zone, - unsigned long start_pfn, unsigned long num_pages) -{ - if (!zone_is_initialized(zone)) - init_currently_empty_zone(zone, start_pfn, num_pages); -} - -static int __meminit move_pfn_range_left(struct zone *z1, struct zone *z2, - unsigned long start_pfn, unsigned long end_pfn) -{ - unsigned long flags; - unsigned long z1_start_pfn; - - ensure_zone_is_initialized(z1, start_pfn, end_pfn - start_pfn); - - pgdat_resize_lock(z1->zone_pgdat, &flags); - - /* can't move pfns which are higher than @z2 */ - if (end_pfn > zone_end_pfn(z2)) - goto out_fail; - /* the move out part must be at the left most of @z2 */ - if (start_pfn > z2->zone_start_pfn) - goto out_fail; - /* must included/overlap */ - if (end_pfn <= z2->zone_start_pfn) - goto out_fail; - - /* use start_pfn for z1's start_pfn if z1 is empty */ - if (!zone_is_empty(z1)) - z1_start_pfn = z1->zone_start_pfn; - else - z1_start_pfn = start_pfn; - - resize_zone(z1, z1_start_pfn, end_pfn); - resize_zone(z2, end_pfn, zone_end_pfn(z2)); - - pgdat_resize_unlock(z1->zone_pgdat, &flags); - - fix_zone_id(z1, start_pfn, end_pfn); - - return 0; -out_fail: - pgdat_resize_unlock(z1->zone_pgdat, &flags); - return -1; -} - -static int __meminit move_pfn_range_right(struct zone *z1, struct zone *z2, - unsigned long start_pfn, unsigned long end_pfn) -{ - unsigned long flags; - unsigned long z2_end_pfn; - - ensure_zone_is_initialized(z2, start_pfn, end_pfn - start_pfn); - - pgdat_resize_lock(z1->zone_pgdat, &flags); - - /* can't move pfns which are lower than @z1 */ - if (z1->zone_start_pfn > start_pfn) - goto out_fail; - /* the move out part mast at the right most of @z1 */ - if (zone_end_pfn(z1) > end_pfn) - goto out_fail; - /* must included/overlap */ - if (start_pfn >= zone_end_pfn(z1)) - goto out_fail; - - /* use end_pfn for z2's end_pfn if z2 is empty */ - if (!zone_is_empty(z2)) - z2_end_pfn = zone_end_pfn(z2); - else - z2_end_pfn = end_pfn; - - resize_zone(z1, z1->zone_start_pfn, start_pfn); - resize_zone(z2, start_pfn, z2_end_pfn); - - pgdat_resize_unlock(z1->zone_pgdat, &flags); - - fix_zone_id(z2, start_pfn, end_pfn); - - return 0; -out_fail: - pgdat_resize_unlock(z1->zone_pgdat, &flags); - return -1; -} - -static void __meminit grow_pgdat_span(struct pglist_data *pgdat, unsigned long start_pfn, - unsigned long end_pfn) -{ - unsigned long old_pgdat_end_pfn = pgdat_end_pfn(pgdat); - - if (!pgdat->node_spanned_pages || start_pfn < pgdat->node_start_pfn) - pgdat->node_start_pfn = start_pfn; - - pgdat->node_spanned_pages = max(old_pgdat_end_pfn, end_pfn) - - pgdat->node_start_pfn; -} - -static int __meminit __add_zone(struct zone *zone, unsigned long phys_start_pfn) -{ - struct pglist_data *pgdat = zone->zone_pgdat; - int nr_pages = PAGES_PER_SECTION; - int nid = pgdat->node_id; - int zone_type; - unsigned long flags, pfn; - - zone_type = zone - pgdat->node_zones; - ensure_zone_is_initialized(zone, phys_start_pfn, nr_pages); - - pgdat_resize_lock(zone->zone_pgdat, &flags); - grow_zone_span(zone, phys_start_pfn, phys_start_pfn + nr_pages); - grow_pgdat_span(zone->zone_pgdat, phys_start_pfn, - phys_start_pfn + nr_pages); - pgdat_resize_unlock(zone->zone_pgdat, &flags); - memmap_init_zone(nr_pages, nid, zone_type, - phys_start_pfn, MEMMAP_HOTPLUG); - - /* online_page_range is called later and expects pages reserved */ - for (pfn = phys_start_pfn; pfn < phys_start_pfn + nr_pages; pfn++) { - if (!pfn_valid(pfn)) - continue; - - SetPageReserved(pfn_to_page(pfn)); - } - return 0; -} - static int __meminit __add_section(int nid, unsigned long phys_start_pfn, bool want_memblock) { @@ -1352,39 +1178,6 @@ static int check_hotplug_memory_range(u64 start, u64 size) return 0; } -/* - * If movable zone has already been setup, newly added memory should be check. - * If its address is higher than movable zone, it should be added as movable. - * Without this check, movable zone may overlap with other zone. - */ -static int should_add_memory_movable(int nid, u64 start, u64 size) -{ - unsigned long start_pfn = start >> PAGE_SHIFT; - pg_data_t *pgdat = NODE_DATA(nid); - struct zone *movable_zone = pgdat->node_zones + ZONE_MOVABLE; - - if (zone_is_empty(movable_zone)) - return 0; - - if (movable_zone->zone_start_pfn <= start_pfn) - return 1; - - return 0; -} - -int zone_for_memory(int nid, u64 start, u64 size, int zone_default, - bool for_device) -{ -#ifdef CONFIG_ZONE_DEVICE - if (for_device) - return ZONE_DEVICE; -#endif - if (should_add_memory_movable(nid, start, size)) - return ZONE_MOVABLE; - - return zone_default; -} - static int online_memory_block(struct memory_block *mem, void *arg) { return device_online(&mem->dev); -- 2.11.0 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2017-04-21 12:22 UTC|newest] Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top 2017-04-21 12:05 [PATCH -v3 0/13] mm: make movable onlining suck less Michal Hocko 2017-04-21 12:05 ` Michal Hocko 2017-04-21 12:05 ` [PATCH 01/13] mm: remove return value from init_currently_empty_zone Michal Hocko 2017-04-21 12:05 ` Michal Hocko 2017-04-21 12:05 ` [PATCH 02/13] mm, memory_hotplug: use node instead of zone in can_online_high_movable Michal Hocko 2017-04-21 12:05 ` Michal Hocko 2017-04-21 12:05 ` [PATCH 03/13] mm: drop page_initialized check from get_nid_for_pfn Michal Hocko 2017-04-21 12:05 ` Michal Hocko 2017-04-21 12:05 ` [PATCH 04/13] mm, memory_hotplug: get rid of is_zone_device_section Michal Hocko 2017-04-21 12:05 ` Michal Hocko 2017-04-21 12:05 ` [PATCH 05/13] mm, memory_hotplug: split up register_one_node Michal Hocko 2017-04-21 12:05 ` Michal Hocko 2017-04-21 12:05 ` [PATCH 06/13] mm, memory_hotplug: consider offline memblocks removable Michal Hocko 2017-04-21 12:05 ` Michal Hocko 2017-04-21 12:05 ` [PATCH 07/13] mm: consider zone which is not fully populated to have holes Michal Hocko 2017-04-21 12:05 ` Michal Hocko 2017-04-27 7:58 ` Michal Hocko 2017-04-27 7:58 ` Michal Hocko 2017-04-21 12:05 ` [PATCH 08/13] mm, compaction: skip over holes in __reset_isolation_suitable Michal Hocko 2017-04-21 12:05 ` Michal Hocko 2017-04-27 7:59 ` Michal Hocko 2017-04-27 7:59 ` Michal Hocko 2017-04-21 12:05 ` [PATCH 09/13] mm: __first_valid_page skip over offline pages Michal Hocko 2017-04-21 12:05 ` Michal Hocko 2017-04-21 12:21 ` [PATCH 11/13] mm, memory_hotplug: replace for_device by want_memblock in arch_add_memory Michal Hocko 2017-04-21 12:21 ` Michal Hocko 2017-04-21 12:21 ` [PATCH 12/13] mm, memory_hotplug: fix the section mismatch warning Michal Hocko 2017-04-21 12:21 ` Michal Hocko 2017-04-21 12:22 ` Michal Hocko [this message] 2017-04-21 12:22 ` [PATCH 13/13] mm, memory_hotplug: remove unused cruft after memory hotplug rework Michal Hocko 2017-04-21 12:30 ` [PATCH 10/13] mm, memory_hotplug: do not associate hotadded memory to zones until online Michal Hocko 2017-04-21 12:30 ` Michal Hocko 2017-04-21 12:52 ` Michal Hocko 2017-04-21 12:52 ` Michal Hocko 2017-04-27 7:56 ` [PATCH -v3 0/13] mm: make movable onlining suck less Michal Hocko 2017-04-27 7:56 ` Michal Hocko 2017-04-27 15:31 ` Jerome Glisse 2017-04-27 15:31 ` Jerome Glisse 2017-05-10 4:43 ` Dan Williams 2017-05-10 4:43 ` Dan Williams 2017-05-10 5:53 ` Michal Hocko 2017-05-10 5:53 ` Michal Hocko
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