Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751068AbdFPUPa (ORCPT ); Fri, 16 Jun 2017 16:15:30 -0400 Received: from gum.cmpxchg.org ([85.214.110.215]:45426 "EHLO gum.cmpxchg.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750792AbdFPUP3 (ORCPT ); Fri, 16 Jun 2017 16:15:29 -0400 Date: Fri, 16 Jun 2017 16:15:23 -0400 From: Johannes Weiner To: Andrew Morton Cc: Guenter Roeck , "linux-kernel@vger.kernel.org" Subject: Re: hexagon: build error in -next due to 'mm: memcontrol: per-lruvec stats infrastructure' Message-ID: <20170616201523.GA11016@cmpxchg.org> References: <534ef333-b27f-e525-31c1-bc5b7516d63f@roeck-us.net> <20170616184951.GA2665@cmpxchg.org> <20170616121453.34d92894ee9da8af895c4208@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20170616121453.34d92894ee9da8af895c4208@linux-foundation.org> User-Agent: Mutt/1.8.2 (2017-04-18) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 15215 Lines: 459 On Fri, Jun 16, 2017 at 12:14:53PM -0700, Andrew Morton wrote: > On Fri, 16 Jun 2017 14:49:51 -0400 Johannes Weiner wrote: > > > On Wed, Jun 14, 2017 at 12:26:46AM -0700, Guenter Roeck wrote: > > > Hi, > > > > > > I see the following build error in -next when building hexagon images. > > > > > > CC arch/hexagon/kernel/asm-offsets.s > > > In file included from ./include/linux/memcontrol.h:30:0, > > > from ./include/linux/swap.h:8, > > > from ./arch/hexagon/include/asm/pgtable.h:27, > > > from ./include/linux/mm.h:70, > > > from arch/hexagon/kernel/asm-offsets.c:28: > > > ./include/linux/vmstat.h: In function '__inc_zone_page_state': > > > ./include/linux/vmstat.h:294:2: error: implicit declaration of function 'page_zone' [-Werror=implicit-function-declaration] > > > ./include/linux/vmstat.h:294:2: warning: passing argument 1 of '__inc_zone_state' makes pointer from integer without a cast [enabled by default] > > > ./include/linux/vmstat.h:267:20: note: expected 'struct zone *' but argument is of type 'int' > > > > vmstat.h depends on definitions in mm.h, but mm.h through the above > > chain includes vmstat.h first. It worked in my x86 test because x86 > > pgtable.h doesn't include swap.h. > > > > The headers are a bit of a mess. memcontrol.h is supposed to be a > > lower level header than mm.h and vmstat.h, yet the new accounting > > functions depend on mm.h definitions. > > > > Let's move the lruvec accounting infra to vmstat.h and shuffle > > memcontrol.h into the stack under mm.h and vmstat.h. > > > > Does the following fix the hexagon build? > > This breaks x86_64 allnoconfig. > > arch/x86/mm/pat.c:734: error: redefinition of 'arch_io_reserve_memtype_wc' > ./include/linux/io.h:175: note: previous definition of 'arch_io_reserve_memtype_wc' was here > arch/x86/mm/pat.c:742: error: redefinition of 'arch_io_free_memtype_wc' > ./include/linux/io.h:181: note: previous definition of 'arch_io_free_memtype_wc' was here wat: /home/hannes/src/linux/linux/arch/x86/mm/pat.c:734:5: error: redefinition of ‘arch_io_reserve_memtype_wc’ int arch_io_reserve_memtype_wc(resource_size_t start, resource_size_t size) ^~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from /home/hannes/src/linux/linux/include/linux/irq.h:24:0, from /home/hannes/src/linux/linux/arch/x86/include/asm/hardirq.h:5, from /home/hannes/src/linux/linux/include/linux/hardirq.h:8, from /home/hannes/src/linux/linux/include/linux/memcontrol.h:24, from /home/hannes/src/linux/linux/include/linux/vmstat.h:9, from /home/hannes/src/linux/linux/include/linux/mm.h:1032, from /home/hannes/src/linux/linux/include/linux/pfn_t.h:3, from /home/hannes/src/linux/linux/arch/x86/mm/pat.c:15: /home/hannes/src/linux/linux/include/linux/io.h:175:19: note: previous definition of ‘arch_io_reserve_memtype_wc’ was here static inline int arch_io_reserve_memtype_wc(resource_size_t base, ^~~~~~~~~~~~~~~~~~~~~~~~~~ In any case, memcontrol.h doesn't/shouldn't need hardirq.h. When that include is removed, the below patch compiles on: x86 allno, x86_64 allno, and my regular x86_64 config: --- Subject: mm-memcontrol-per-lruvec-stats-infrastructure-fix-4 On Wed, Jun 14, 2017 at 12:26:46AM -0700, Guenter Roeck wrote: > Hi, > > I see the following build error in -next when building hexagon images. > > CC arch/hexagon/kernel/asm-offsets.s > In file included from ./include/linux/memcontrol.h:30:0, > from ./include/linux/swap.h:8, > from ./arch/hexagon/include/asm/pgtable.h:27, > from ./include/linux/mm.h:70, > from arch/hexagon/kernel/asm-offsets.c:28: > ./include/linux/vmstat.h: In function '__inc_zone_page_state': > ./include/linux/vmstat.h:294:2: error: implicit declaration of function 'page_zone' [-Werror=implicit-function-declaration] > ./include/linux/vmstat.h:294:2: warning: passing argument 1 of '__inc_zone_state' makes pointer from integer without a cast [enabled by default] > ./include/linux/vmstat.h:267:20: note: expected 'struct zone *' but argument is of type 'int' vmstat.h depends on definitions in mm.h, but mm.h through the above chain includes vmstat.h first. It worked in my x86 test because x86 pgtable.h doesn't include swap.h. The headers are a bit of a mess. memcontrol.h is supposed to be a lower level header than mm.h and vmstat.h, yet the new accounting functions depend on mm.h definitions. Let's move the lruvec accounting infra to vmstat.h and shuffle memcontrol.h into the stack under mm.h and vmstat.h. Reported-by: Guenter Roeck Signed-off-by: Johannes Weiner --- diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index da9360885260..b5a60c0bcb73 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -21,13 +21,10 @@ #define _LINUX_MEMCONTROL_H #include #include -#include #include #include #include #include -#include -#include #include #include @@ -536,78 +533,6 @@ static inline void mod_memcg_page_state(struct page *page, mod_memcg_state(page->mem_cgroup, idx, val); } -static inline unsigned long lruvec_page_state(struct lruvec *lruvec, - enum node_stat_item idx) -{ - struct mem_cgroup_per_node *pn; - long val = 0; - int cpu; - - if (mem_cgroup_disabled()) - return node_page_state(lruvec_pgdat(lruvec), idx); - - pn = container_of(lruvec, struct mem_cgroup_per_node, lruvec); - for_each_possible_cpu(cpu) - val += per_cpu(pn->lruvec_stat->count[idx], cpu); - - if (val < 0) - val = 0; - - return val; -} - -static inline void __mod_lruvec_state(struct lruvec *lruvec, - enum node_stat_item idx, int val) -{ - struct mem_cgroup_per_node *pn; - - __mod_node_page_state(lruvec_pgdat(lruvec), idx, val); - if (mem_cgroup_disabled()) - return; - pn = container_of(lruvec, struct mem_cgroup_per_node, lruvec); - __mod_memcg_state(pn->memcg, idx, val); - __this_cpu_add(pn->lruvec_stat->count[idx], val); -} - -static inline void mod_lruvec_state(struct lruvec *lruvec, - enum node_stat_item idx, int val) -{ - struct mem_cgroup_per_node *pn; - - mod_node_page_state(lruvec_pgdat(lruvec), idx, val); - if (mem_cgroup_disabled()) - return; - pn = container_of(lruvec, struct mem_cgroup_per_node, lruvec); - mod_memcg_state(pn->memcg, idx, val); - this_cpu_add(pn->lruvec_stat->count[idx], val); -} - -static inline void __mod_lruvec_page_state(struct page *page, - enum node_stat_item idx, int val) -{ - struct mem_cgroup_per_node *pn; - - __mod_node_page_state(page_pgdat(page), idx, val); - if (mem_cgroup_disabled() || !page->mem_cgroup) - return; - __mod_memcg_state(page->mem_cgroup, idx, val); - pn = page->mem_cgroup->nodeinfo[page_to_nid(page)]; - __this_cpu_add(pn->lruvec_stat->count[idx], val); -} - -static inline void mod_lruvec_page_state(struct page *page, - enum node_stat_item idx, int val) -{ - struct mem_cgroup_per_node *pn; - - mod_node_page_state(page_pgdat(page), idx, val); - if (mem_cgroup_disabled() || !page->mem_cgroup) - return; - mod_memcg_state(page->mem_cgroup, idx, val); - pn = page->mem_cgroup->nodeinfo[page_to_nid(page)]; - this_cpu_add(pn->lruvec_stat->count[idx], val); -} - unsigned long mem_cgroup_soft_limit_reclaim(pg_data_t *pgdat, int order, gfp_t gfp_mask, unsigned long *total_scanned); @@ -835,36 +760,6 @@ static inline void mod_memcg_page_state(struct page *page, { } -static inline unsigned long lruvec_page_state(struct lruvec *lruvec, - enum node_stat_item idx) -{ - return node_page_state(lruvec_pgdat(lruvec), idx); -} - -static inline void __mod_lruvec_state(struct lruvec *lruvec, - enum node_stat_item idx, int val) -{ - __mod_node_page_state(lruvec_pgdat(lruvec), idx, val); -} - -static inline void mod_lruvec_state(struct lruvec *lruvec, - enum node_stat_item idx, int val) -{ - mod_node_page_state(lruvec_pgdat(lruvec), idx, val); -} - -static inline void __mod_lruvec_page_state(struct page *page, - enum node_stat_item idx, int val) -{ - __mod_node_page_state(page_pgdat(page), idx, val); -} - -static inline void mod_lruvec_page_state(struct page *page, - enum node_stat_item idx, int val) -{ - mod_node_page_state(page_pgdat(page), idx, val); -} - static inline unsigned long mem_cgroup_soft_limit_reclaim(pg_data_t *pgdat, int order, gfp_t gfp_mask, @@ -907,30 +802,6 @@ static inline void __dec_memcg_page_state(struct page *page, __mod_memcg_page_state(page, idx, -1); } -static inline void __inc_lruvec_state(struct lruvec *lruvec, - enum node_stat_item idx) -{ - __mod_lruvec_state(lruvec, idx, 1); -} - -static inline void __dec_lruvec_state(struct lruvec *lruvec, - enum node_stat_item idx) -{ - __mod_lruvec_state(lruvec, idx, -1); -} - -static inline void __inc_lruvec_page_state(struct page *page, - enum node_stat_item idx) -{ - __mod_lruvec_page_state(page, idx, 1); -} - -static inline void __dec_lruvec_page_state(struct page *page, - enum node_stat_item idx) -{ - __mod_lruvec_page_state(page, idx, -1); -} - static inline void inc_memcg_state(struct mem_cgroup *memcg, enum memcg_stat_item idx) { @@ -955,30 +826,6 @@ static inline void dec_memcg_page_state(struct page *page, mod_memcg_page_state(page, idx, -1); } -static inline void inc_lruvec_state(struct lruvec *lruvec, - enum node_stat_item idx) -{ - mod_lruvec_state(lruvec, idx, 1); -} - -static inline void dec_lruvec_state(struct lruvec *lruvec, - enum node_stat_item idx) -{ - mod_lruvec_state(lruvec, idx, -1); -} - -static inline void inc_lruvec_page_state(struct page *page, - enum node_stat_item idx) -{ - mod_lruvec_page_state(page, idx, 1); -} - -static inline void dec_lruvec_page_state(struct page *page, - enum node_stat_item idx) -{ - mod_lruvec_page_state(page, idx, -1); -} - #ifdef CONFIG_CGROUP_WRITEBACK struct list_head *mem_cgroup_cgwb_list(struct mem_cgroup *memcg); diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index b3d85f30d424..4c52a9f7b6a4 100644 --- a/include/linux/vmstat.h +++ b/include/linux/vmstat.h @@ -6,6 +6,7 @@ #include #include #include +#include extern int sysctl_stat_interval; @@ -350,4 +351,156 @@ static inline void __mod_zone_freepage_state(struct zone *zone, int nr_pages, extern const char * const vmstat_text[]; +#ifdef CONFIG_MEMCG +static inline unsigned long lruvec_page_state(struct lruvec *lruvec, + enum node_stat_item idx) +{ + struct mem_cgroup_per_node *pn; + long val = 0; + int cpu; + + if (mem_cgroup_disabled()) + return node_page_state(lruvec_pgdat(lruvec), idx); + + pn = container_of(lruvec, struct mem_cgroup_per_node, lruvec); + for_each_possible_cpu(cpu) + val += per_cpu(pn->lruvec_stat->count[idx], cpu); + + if (val < 0) + val = 0; + + return val; +} + +static inline void __mod_lruvec_state(struct lruvec *lruvec, + enum node_stat_item idx, int val) +{ + struct mem_cgroup_per_node *pn; + + __mod_node_page_state(lruvec_pgdat(lruvec), idx, val); + if (mem_cgroup_disabled()) + return; + pn = container_of(lruvec, struct mem_cgroup_per_node, lruvec); + __mod_memcg_state(pn->memcg, idx, val); + __this_cpu_add(pn->lruvec_stat->count[idx], val); +} + +static inline void mod_lruvec_state(struct lruvec *lruvec, + enum node_stat_item idx, int val) +{ + struct mem_cgroup_per_node *pn; + + mod_node_page_state(lruvec_pgdat(lruvec), idx, val); + if (mem_cgroup_disabled()) + return; + pn = container_of(lruvec, struct mem_cgroup_per_node, lruvec); + mod_memcg_state(pn->memcg, idx, val); + this_cpu_add(pn->lruvec_stat->count[idx], val); +} + +static inline void __mod_lruvec_page_state(struct page *page, + enum node_stat_item idx, int val) +{ + struct mem_cgroup_per_node *pn; + + __mod_node_page_state(page_pgdat(page), idx, val); + if (mem_cgroup_disabled() || !page->mem_cgroup) + return; + __mod_memcg_state(page->mem_cgroup, idx, val); + pn = page->mem_cgroup->nodeinfo[page_to_nid(page)]; + __this_cpu_add(pn->lruvec_stat->count[idx], val); +} + +static inline void mod_lruvec_page_state(struct page *page, + enum node_stat_item idx, int val) +{ + struct mem_cgroup_per_node *pn; + + mod_node_page_state(page_pgdat(page), idx, val); + if (mem_cgroup_disabled() || !page->mem_cgroup) + return; + mod_memcg_state(page->mem_cgroup, idx, val); + pn = page->mem_cgroup->nodeinfo[page_to_nid(page)]; + this_cpu_add(pn->lruvec_stat->count[idx], val); +} +#else /* CONFIG_MEMCG */ +static inline unsigned long lruvec_page_state(struct lruvec *lruvec, + enum node_stat_item idx) +{ + return node_page_state(lruvec_pgdat(lruvec), idx); +} + +static inline void __mod_lruvec_state(struct lruvec *lruvec, + enum node_stat_item idx, int val) +{ + __mod_node_page_state(lruvec_pgdat(lruvec), idx, val); +} + +static inline void mod_lruvec_state(struct lruvec *lruvec, + enum node_stat_item idx, int val) +{ + mod_node_page_state(lruvec_pgdat(lruvec), idx, val); +} + +static inline void __mod_lruvec_page_state(struct page *page, + enum node_stat_item idx, int val) +{ + __mod_node_page_state(page_pgdat(page), idx, val); +} + +static inline void mod_lruvec_page_state(struct page *page, + enum node_stat_item idx, int val) +{ + mod_node_page_state(page_pgdat(page), idx, val); +} +#endif /* CONFIG_MEMCG */ + +static inline void __inc_lruvec_state(struct lruvec *lruvec, + enum node_stat_item idx) +{ + __mod_lruvec_state(lruvec, idx, 1); +} + +static inline void __dec_lruvec_state(struct lruvec *lruvec, + enum node_stat_item idx) +{ + __mod_lruvec_state(lruvec, idx, -1); +} + +static inline void __inc_lruvec_page_state(struct page *page, + enum node_stat_item idx) +{ + __mod_lruvec_page_state(page, idx, 1); +} + +static inline void __dec_lruvec_page_state(struct page *page, + enum node_stat_item idx) +{ + __mod_lruvec_page_state(page, idx, -1); +} + +static inline void inc_lruvec_state(struct lruvec *lruvec, + enum node_stat_item idx) +{ + mod_lruvec_state(lruvec, idx, 1); +} + +static inline void dec_lruvec_state(struct lruvec *lruvec, + enum node_stat_item idx) +{ + mod_lruvec_state(lruvec, idx, -1); +} + +static inline void inc_lruvec_page_state(struct page *page, + enum node_stat_item idx) +{ + mod_lruvec_page_state(page, idx, 1); +} + +static inline void dec_lruvec_page_state(struct page *page, + enum node_stat_item idx) +{ + mod_lruvec_page_state(page, idx, -1); +} + #endif /* _LINUX_VMSTAT_H */