Re: [PATCH v3 06/18] mm/memcg: Add folio_memcg() and related functions
From: kernel test robot <hidden>
Date: 2021-06-30 06:54:30
Also in:
linux-mm, oe-kbuild-all
Hi "Matthew, Thank you for the patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on next-20210629] [cannot apply to hnaz-linux-mm/master tip/perf/core cgroup/for-next v5.13] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Matthew-Wilcox-Oracle/Folio-conversion-of-memcg/20210630-121408 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 007b350a58754a93ca9fe50c498cc27780171153 config: x86_64-randconfig-a003-20210628 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 8d21d5472501460933e78aead04cf59579025ba4) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://github.com/0day-ci/linux/commit/615adf6169006fa1bc5e19d2105ff9a333bef423 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Matthew-Wilcox-Oracle/Folio-conversion-of-memcg/20210630-121408 git checkout 615adf6169006fa1bc5e19d2105ff9a333bef423 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=x86_64 olddefconfig If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <redacted> All errors (new ones prefixed by >>): In file included from arch/x86/kernel/asm-offsets.c:13: In file included from include/linux/suspend.h:5: In file included from include/linux/swap.h:9: In file included from include/linux/memcontrol.h:13: In file included from include/linux/cgroup.h:28: In file included from include/linux/cgroup-defs.h:22: In file included from include/linux/bpf-cgroup.h:5: In file included from include/linux/bpf.h:20: In file included from include/linux/kallsyms.h:12: include/linux/mm.h:1382:42: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility] static inline int folio_nid(const struct folio *folio) ^ include/linux/mm.h:1384:27: error: incomplete definition of type 'struct folio' return page_to_nid(&folio->page); ~~~~~^ include/linux/mm.h:1382:42: note: forward declaration of 'struct folio' static inline int folio_nid(const struct folio *folio) ^ In file included from arch/x86/kernel/asm-offsets.c:13: In file included from include/linux/suspend.h:5: In file included from include/linux/swap.h:9: include/linux/memcontrol.h:375:44: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility] static inline bool folio_memcg_kmem(struct folio *folio); ^ include/linux/memcontrol.h:399:55: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility] static inline struct mem_cgroup *__folio_memcg(struct folio *folio) ^
quoted
include/linux/memcontrol.h:401:34: error: incomplete definition of type 'struct folio'
unsigned long memcg_data = folio->memcg_data;
~~~~~^
include/linux/memcontrol.h:399:55: note: forward declaration of 'struct folio'
static inline struct mem_cgroup *__folio_memcg(struct folio *folio)
^quoted
include/linux/memcontrol.h:403:2: error: implicit declaration of function 'VM_BUG_ON_FOLIO' [-Werror,-Wimplicit-function-declaration]
VM_BUG_ON_FOLIO(folio_slab(folio), folio);
^quoted
include/linux/memcontrol.h:403:18: error: implicit declaration of function 'folio_slab' [-Werror,-Wimplicit-function-declaration]
VM_BUG_ON_FOLIO(folio_slab(folio), folio);
^
include/linux/memcontrol.h:420:55: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility]
static inline struct obj_cgroup *__folio_objcg(struct folio *folio)
^
include/linux/memcontrol.h:422:34: error: incomplete definition of type 'struct folio'
unsigned long memcg_data = folio->memcg_data;
~~~~~^
include/linux/memcontrol.h:420:55: note: forward declaration of 'struct folio'
static inline struct obj_cgroup *__folio_objcg(struct folio *folio)
^
include/linux/memcontrol.h:424:2: error: implicit declaration of function 'VM_BUG_ON_FOLIO' [-Werror,-Wimplicit-function-declaration]
VM_BUG_ON_FOLIO(folio_slab(folio), folio);
^
include/linux/memcontrol.h:424:18: error: implicit declaration of function 'folio_slab' [-Werror,-Wimplicit-function-declaration]
VM_BUG_ON_FOLIO(folio_slab(folio), folio);
^
include/linux/memcontrol.h:451:53: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility]
static inline struct mem_cgroup *folio_memcg(struct folio *folio)
^
include/linux/memcontrol.h:453:23: error: incompatible pointer types passing 'struct folio *' to parameter of type 'struct folio *' [-Werror,-Wincompatible-pointer-types]
if (folio_memcg_kmem(folio))
^~~~~
include/linux/memcontrol.h:375:51: note: passing argument to parameter 'folio' here
static inline bool folio_memcg_kmem(struct folio *folio);
^
include/linux/memcontrol.h:454:41: error: incompatible pointer types passing 'struct folio *' to parameter of type 'struct folio *' [-Werror,-Wincompatible-pointer-types]
return obj_cgroup_memcg(__folio_objcg(folio));
^~~~~
include/linux/memcontrol.h:420:62: note: passing argument to parameter 'folio' here
static inline struct obj_cgroup *__folio_objcg(struct folio *folio)
^
include/linux/memcontrol.h:456:24: error: incompatible pointer types passing 'struct folio *' to parameter of type 'struct folio *' [-Werror,-Wincompatible-pointer-types]
return __folio_memcg(folio);
^~~~~
include/linux/memcontrol.h:399:62: note: passing argument to parameter 'folio' here
static inline struct mem_cgroup *__folio_memcg(struct folio *folio)
^
include/linux/memcontrol.h:461:21: error: implicit declaration of function 'page_folio' [-Werror,-Wimplicit-function-declaration]
return folio_memcg(page_folio(page));
^
include/linux/memcontrol.h:461:21: warning: incompatible integer to pointer conversion passing 'int' to parameter of type 'struct folio *' [-Wint-conversion]
return folio_memcg(page_folio(page));
^~~~~~~~~~~~~~~~
include/linux/memcontrol.h:451:60: note: passing argument to parameter 'folio' here
static inline struct mem_cgroup *folio_memcg(struct folio *folio)
^
include/linux/memcontrol.h:541:44: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility]
static inline bool folio_memcg_kmem(struct folio *folio)
^
include/linux/memcontrol.h:541:20: error: conflicting types for 'folio_memcg_kmem'
static inline bool folio_memcg_kmem(struct folio *folio)
^
include/linux/memcontrol.h:375:20: note: previous declaration is here
static inline bool folio_memcg_kmem(struct folio *folio);
^
include/linux/memcontrol.h:543:35: error: incomplete definition of type 'struct folio'
VM_BUG_ON_PGFLAGS(PageTail(&folio->page), &folio->page);
~~~~~^
include/linux/mmdebug.h:76:60: note: expanded from macro 'VM_BUG_ON_PGFLAGS'
#define VM_BUG_ON_PGFLAGS(cond, page) BUILD_BUG_ON_INVALID(cond)
^~~~
include/linux/build_bug.h:30:63: note: expanded from macro 'BUILD_BUG_ON_INVALID'
#define BUILD_BUG_ON_INVALID(e) ((void)(sizeof((__force long)(e))))
^
include/linux/memcontrol.h:541:44: note: forward declaration of 'struct folio'
static inline bool folio_memcg_kmem(struct folio *folio)
^
include/linux/memcontrol.h:544:2: error: implicit declaration of function 'VM_BUG_ON_FOLIO' [-Werror,-Wimplicit-function-declaration]
VM_BUG_ON_FOLIO(folio->memcg_data & MEMCG_DATA_OBJCGS, folio);
^
include/linux/memcontrol.h:544:23: error: incomplete definition of type 'struct folio'
VM_BUG_ON_FOLIO(folio->memcg_data & MEMCG_DATA_OBJCGS, folio);
~~~~~^
include/linux/memcontrol.h:541:44: note: forward declaration of 'struct folio'
static inline bool folio_memcg_kmem(struct folio *folio)
^
include/linux/memcontrol.h:545:14: error: incomplete definition of type 'struct folio'
return folio->memcg_data & MEMCG_DATA_KMEM;
~~~~~^
include/linux/memcontrol.h:541:44: note: forward declaration of 'struct folio'
static inline bool folio_memcg_kmem(struct folio *folio)
^
include/linux/memcontrol.h:607:26: error: implicit declaration of function 'page_folio' [-Werror,-Wimplicit-function-declaration]
return folio_memcg_kmem(page_folio(page));
^
include/linux/memcontrol.h:607:26: warning: incompatible integer to pointer conversion passing 'int' to parameter of type 'struct folio *' [-Wint-conversion]
return folio_memcg_kmem(page_folio(page));
^~~~~~~~~~~~~~~~
include/linux/memcontrol.h:375:51: note: passing argument to parameter 'folio' here
static inline bool folio_memcg_kmem(struct folio *folio);
^
8 warnings and 17 errors generated.
--
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:28:
In file included from include/linux/cgroup-defs.h:22:
In file included from include/linux/bpf-cgroup.h:5:
In file included from include/linux/bpf.h:20:
In file included from include/linux/kallsyms.h:12:
include/linux/mm.h:1382:42: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility]
static inline int folio_nid(const struct folio *folio)
^
include/linux/mm.h:1384:27: error: incomplete definition of type 'struct folio'
return page_to_nid(&folio->page);
~~~~~^
include/linux/mm.h:1382:42: note: forward declaration of 'struct folio'
static inline int folio_nid(const struct folio *folio)
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
include/linux/memcontrol.h:375:44: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility]
static inline bool folio_memcg_kmem(struct folio *folio);
^
include/linux/memcontrol.h:399:55: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility]
static inline struct mem_cgroup *__folio_memcg(struct folio *folio)
^quoted
include/linux/memcontrol.h:401:34: error: incomplete definition of type 'struct folio'
unsigned long memcg_data = folio->memcg_data;
~~~~~^
include/linux/memcontrol.h:399:55: note: forward declaration of 'struct folio'
static inline struct mem_cgroup *__folio_memcg(struct folio *folio)
^quoted
include/linux/memcontrol.h:403:2: error: implicit declaration of function 'VM_BUG_ON_FOLIO' [-Werror,-Wimplicit-function-declaration]
VM_BUG_ON_FOLIO(folio_slab(folio), folio);
^quoted
include/linux/memcontrol.h:403:18: error: implicit declaration of function 'folio_slab' [-Werror,-Wimplicit-function-declaration]
VM_BUG_ON_FOLIO(folio_slab(folio), folio);
^
include/linux/memcontrol.h:420:55: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility]
static inline struct obj_cgroup *__folio_objcg(struct folio *folio)
^
include/linux/memcontrol.h:422:34: error: incomplete definition of type 'struct folio'
unsigned long memcg_data = folio->memcg_data;
~~~~~^
include/linux/memcontrol.h:420:55: note: forward declaration of 'struct folio'
static inline struct obj_cgroup *__folio_objcg(struct folio *folio)
^
include/linux/memcontrol.h:424:2: error: implicit declaration of function 'VM_BUG_ON_FOLIO' [-Werror,-Wimplicit-function-declaration]
VM_BUG_ON_FOLIO(folio_slab(folio), folio);
^
include/linux/memcontrol.h:424:18: error: implicit declaration of function 'folio_slab' [-Werror,-Wimplicit-function-declaration]
VM_BUG_ON_FOLIO(folio_slab(folio), folio);
^
include/linux/memcontrol.h:451:53: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility]
static inline struct mem_cgroup *folio_memcg(struct folio *folio)
^
include/linux/memcontrol.h:453:23: error: incompatible pointer types passing 'struct folio *' to parameter of type 'struct folio *' [-Werror,-Wincompatible-pointer-types]
if (folio_memcg_kmem(folio))
^~~~~
include/linux/memcontrol.h:375:51: note: passing argument to parameter 'folio' here
static inline bool folio_memcg_kmem(struct folio *folio);
^
include/linux/memcontrol.h:454:41: error: incompatible pointer types passing 'struct folio *' to parameter of type 'struct folio *' [-Werror,-Wincompatible-pointer-types]
return obj_cgroup_memcg(__folio_objcg(folio));
^~~~~
include/linux/memcontrol.h:420:62: note: passing argument to parameter 'folio' here
static inline struct obj_cgroup *__folio_objcg(struct folio *folio)
^
include/linux/memcontrol.h:456:24: error: incompatible pointer types passing 'struct folio *' to parameter of type 'struct folio *' [-Werror,-Wincompatible-pointer-types]
return __folio_memcg(folio);
^~~~~
include/linux/memcontrol.h:399:62: note: passing argument to parameter 'folio' here
static inline struct mem_cgroup *__folio_memcg(struct folio *folio)
^
include/linux/memcontrol.h:461:21: error: implicit declaration of function 'page_folio' [-Werror,-Wimplicit-function-declaration]
return folio_memcg(page_folio(page));
^
include/linux/memcontrol.h:461:21: warning: incompatible integer to pointer conversion passing 'int' to parameter of type 'struct folio *' [-Wint-conversion]
return folio_memcg(page_folio(page));
^~~~~~~~~~~~~~~~
include/linux/memcontrol.h:451:60: note: passing argument to parameter 'folio' here
static inline struct mem_cgroup *folio_memcg(struct folio *folio)
^
include/linux/memcontrol.h:541:44: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility]
static inline bool folio_memcg_kmem(struct folio *folio)
^
include/linux/memcontrol.h:541:20: error: conflicting types for 'folio_memcg_kmem'
static inline bool folio_memcg_kmem(struct folio *folio)
^
include/linux/memcontrol.h:375:20: note: previous declaration is here
static inline bool folio_memcg_kmem(struct folio *folio);
^
include/linux/memcontrol.h:543:35: error: incomplete definition of type 'struct folio'
VM_BUG_ON_PGFLAGS(PageTail(&folio->page), &folio->page);
~~~~~^
include/linux/mmdebug.h:76:60: note: expanded from macro 'VM_BUG_ON_PGFLAGS'
#define VM_BUG_ON_PGFLAGS(cond, page) BUILD_BUG_ON_INVALID(cond)
^~~~
include/linux/build_bug.h:30:63: note: expanded from macro 'BUILD_BUG_ON_INVALID'
#define BUILD_BUG_ON_INVALID(e) ((void)(sizeof((__force long)(e))))
^
include/linux/memcontrol.h:541:44: note: forward declaration of 'struct folio'
static inline bool folio_memcg_kmem(struct folio *folio)
^
include/linux/memcontrol.h:544:2: error: implicit declaration of function 'VM_BUG_ON_FOLIO' [-Werror,-Wimplicit-function-declaration]
VM_BUG_ON_FOLIO(folio->memcg_data & MEMCG_DATA_OBJCGS, folio);
^
include/linux/memcontrol.h:544:23: error: incomplete definition of type 'struct folio'
VM_BUG_ON_FOLIO(folio->memcg_data & MEMCG_DATA_OBJCGS, folio);
~~~~~^
include/linux/memcontrol.h:541:44: note: forward declaration of 'struct folio'
static inline bool folio_memcg_kmem(struct folio *folio)
^
include/linux/memcontrol.h:545:14: error: incomplete definition of type 'struct folio'
return folio->memcg_data & MEMCG_DATA_KMEM;
~~~~~^
include/linux/memcontrol.h:541:44: note: forward declaration of 'struct folio'
static inline bool folio_memcg_kmem(struct folio *folio)
^
include/linux/memcontrol.h:607:26: error: implicit declaration of function 'page_folio' [-Werror,-Wimplicit-function-declaration]
return folio_memcg_kmem(page_folio(page));
^
include/linux/memcontrol.h:607:26: warning: incompatible integer to pointer conversion passing 'int' to parameter of type 'struct folio *' [-Wint-conversion]
return folio_memcg_kmem(page_folio(page));
^~~~~~~~~~~~~~~~
include/linux/memcontrol.h:375:51: note: passing argument to parameter 'folio' here
static inline bool folio_memcg_kmem(struct folio *folio);
^
8 warnings and 17 errors generated.
make[2]: *** [scripts/Makefile.build:117: arch/x86/kernel/asm-offsets.s] Error 1
make[2]: Target '__build' not remade because of errors.
make[1]: *** [Makefile:1235: prepare0] Error 2
make[1]: Target 'modules_prepare' not remade because of errors.
make: *** [Makefile:215: __sub-make] Error 2
make: Target 'modules_prepare' not remade because of errors.
--
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:28:
In file included from include/linux/cgroup-defs.h:22:
In file included from include/linux/bpf-cgroup.h:5:
In file included from include/linux/bpf.h:20:
In file included from include/linux/kallsyms.h:12:
include/linux/mm.h:1382:42: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility]
static inline int folio_nid(const struct folio *folio)
^
include/linux/mm.h:1384:27: error: incomplete definition of type 'struct folio'
return page_to_nid(&folio->page);
~~~~~^
include/linux/mm.h:1382:42: note: forward declaration of 'struct folio'
static inline int folio_nid(const struct folio *folio)
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
include/linux/memcontrol.h:375:44: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility]
static inline bool folio_memcg_kmem(struct folio *folio);
^
include/linux/memcontrol.h:399:55: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility]
static inline struct mem_cgroup *__folio_memcg(struct folio *folio)
^quoted
include/linux/memcontrol.h:401:34: error: incomplete definition of type 'struct folio'
unsigned long memcg_data = folio->memcg_data;
~~~~~^
include/linux/memcontrol.h:399:55: note: forward declaration of 'struct folio'
static inline struct mem_cgroup *__folio_memcg(struct folio *folio)
^quoted
include/linux/memcontrol.h:403:2: error: implicit declaration of function 'VM_BUG_ON_FOLIO' [-Werror,-Wimplicit-function-declaration]
VM_BUG_ON_FOLIO(folio_slab(folio), folio);
^quoted
include/linux/memcontrol.h:403:18: error: implicit declaration of function 'folio_slab' [-Werror,-Wimplicit-function-declaration]
VM_BUG_ON_FOLIO(folio_slab(folio), folio);
^
include/linux/memcontrol.h:420:55: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility]
static inline struct obj_cgroup *__folio_objcg(struct folio *folio)
^
include/linux/memcontrol.h:422:34: error: incomplete definition of type 'struct folio'
unsigned long memcg_data = folio->memcg_data;
~~~~~^
include/linux/memcontrol.h:420:55: note: forward declaration of 'struct folio'
static inline struct obj_cgroup *__folio_objcg(struct folio *folio)
^
include/linux/memcontrol.h:424:2: error: implicit declaration of function 'VM_BUG_ON_FOLIO' [-Werror,-Wimplicit-function-declaration]
VM_BUG_ON_FOLIO(folio_slab(folio), folio);
^
include/linux/memcontrol.h:424:18: error: implicit declaration of function 'folio_slab' [-Werror,-Wimplicit-function-declaration]
VM_BUG_ON_FOLIO(folio_slab(folio), folio);
^
include/linux/memcontrol.h:451:53: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility]
static inline struct mem_cgroup *folio_memcg(struct folio *folio)
^
include/linux/memcontrol.h:453:23: error: incompatible pointer types passing 'struct folio *' to parameter of type 'struct folio *' [-Werror,-Wincompatible-pointer-types]
if (folio_memcg_kmem(folio))
^~~~~
include/linux/memcontrol.h:375:51: note: passing argument to parameter 'folio' here
static inline bool folio_memcg_kmem(struct folio *folio);
^
include/linux/memcontrol.h:454:41: error: incompatible pointer types passing 'struct folio *' to parameter of type 'struct folio *' [-Werror,-Wincompatible-pointer-types]
return obj_cgroup_memcg(__folio_objcg(folio));
^~~~~
include/linux/memcontrol.h:420:62: note: passing argument to parameter 'folio' here
static inline struct obj_cgroup *__folio_objcg(struct folio *folio)
^
include/linux/memcontrol.h:456:24: error: incompatible pointer types passing 'struct folio *' to parameter of type 'struct folio *' [-Werror,-Wincompatible-pointer-types]
return __folio_memcg(folio);
^~~~~
include/linux/memcontrol.h:399:62: note: passing argument to parameter 'folio' here
static inline struct mem_cgroup *__folio_memcg(struct folio *folio)
^
include/linux/memcontrol.h:461:21: error: implicit declaration of function 'page_folio' [-Werror,-Wimplicit-function-declaration]
return folio_memcg(page_folio(page));
^
include/linux/memcontrol.h:461:21: warning: incompatible integer to pointer conversion passing 'int' to parameter of type 'struct folio *' [-Wint-conversion]
return folio_memcg(page_folio(page));
^~~~~~~~~~~~~~~~
include/linux/memcontrol.h:451:60: note: passing argument to parameter 'folio' here
static inline struct mem_cgroup *folio_memcg(struct folio *folio)
^
include/linux/memcontrol.h:541:44: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility]
static inline bool folio_memcg_kmem(struct folio *folio)
^
include/linux/memcontrol.h:541:20: error: conflicting types for 'folio_memcg_kmem'
static inline bool folio_memcg_kmem(struct folio *folio)
^
include/linux/memcontrol.h:375:20: note: previous declaration is here
static inline bool folio_memcg_kmem(struct folio *folio);
^
include/linux/memcontrol.h:543:35: error: incomplete definition of type 'struct folio'
VM_BUG_ON_PGFLAGS(PageTail(&folio->page), &folio->page);
~~~~~^
include/linux/mmdebug.h:76:60: note: expanded from macro 'VM_BUG_ON_PGFLAGS'
#define VM_BUG_ON_PGFLAGS(cond, page) BUILD_BUG_ON_INVALID(cond)
^~~~
include/linux/build_bug.h:30:63: note: expanded from macro 'BUILD_BUG_ON_INVALID'
#define BUILD_BUG_ON_INVALID(e) ((void)(sizeof((__force long)(e))))
^
include/linux/memcontrol.h:541:44: note: forward declaration of 'struct folio'
static inline bool folio_memcg_kmem(struct folio *folio)
^
include/linux/memcontrol.h:544:2: error: implicit declaration of function 'VM_BUG_ON_FOLIO' [-Werror,-Wimplicit-function-declaration]
VM_BUG_ON_FOLIO(folio->memcg_data & MEMCG_DATA_OBJCGS, folio);
^
include/linux/memcontrol.h:544:23: error: incomplete definition of type 'struct folio'
VM_BUG_ON_FOLIO(folio->memcg_data & MEMCG_DATA_OBJCGS, folio);
~~~~~^
include/linux/memcontrol.h:541:44: note: forward declaration of 'struct folio'
static inline bool folio_memcg_kmem(struct folio *folio)
^
include/linux/memcontrol.h:545:14: error: incomplete definition of type 'struct folio'
return folio->memcg_data & MEMCG_DATA_KMEM;
~~~~~^
include/linux/memcontrol.h:541:44: note: forward declaration of 'struct folio'
static inline bool folio_memcg_kmem(struct folio *folio)
^
include/linux/memcontrol.h:607:26: error: implicit declaration of function 'page_folio' [-Werror,-Wimplicit-function-declaration]
return folio_memcg_kmem(page_folio(page));
^
include/linux/memcontrol.h:607:26: warning: incompatible integer to pointer conversion passing 'int' to parameter of type 'struct folio *' [-Wint-conversion]
return folio_memcg_kmem(page_folio(page));
^~~~~~~~~~~~~~~~
include/linux/memcontrol.h:375:51: note: passing argument to parameter 'folio' here
static inline bool folio_memcg_kmem(struct folio *folio);
^
8 warnings and 17 errors generated.
make[2]: *** [scripts/Makefile.build:117: arch/x86/kernel/asm-offsets.s] Error 1
make[2]: Target '__build' not remade because of errors.
make[1]: *** [Makefile:1235: prepare0] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:215: __sub-make] Error 2
make: Target 'prepare' not remade because of errors.
vim +401 include/linux/memcontrol.h
373
374 static inline bool PageMemcgKmem(struct page *page);
> 375 static inline bool folio_memcg_kmem(struct folio *folio);
376
377 /*
378 * After the initialization objcg->memcg is always pointing at
379 * a valid memcg, but can be atomically swapped to the parent memcg.
380 *
381 * The caller must ensure that the returned memcg won't be released:
382 * e.g. acquire the rcu_read_lock or css_set_lock.
383 */
384 static inline struct mem_cgroup *obj_cgroup_memcg(struct obj_cgroup *objcg)
385 {
386 return READ_ONCE(objcg->memcg);
387 }
388
389 /*
390 * __folio_memcg - Get the memory cgroup associated with a non-kmem folio
391 * @folio: Pointer to the folio.
392 *
393 * Returns a pointer to the memory cgroup associated with the folio,
394 * or NULL. This function assumes that the folio is known to have a
395 * proper memory cgroup pointer. It's not safe to call this function
396 * against some type of folios, e.g. slab folios or ex-slab folios or
397 * kmem folios.
398 */
> 399 static inline struct mem_cgroup *__folio_memcg(struct folio *folio)
400 {
> 401 unsigned long memcg_data = folio->memcg_data;
402
> 403 VM_BUG_ON_FOLIO(folio_slab(folio), folio);
404 VM_BUG_ON_FOLIO(memcg_data & MEMCG_DATA_OBJCGS, folio);
405 VM_BUG_ON_FOLIO(memcg_data & MEMCG_DATA_KMEM, folio);
406
407 return (struct mem_cgroup *)(memcg_data & ~MEMCG_DATA_FLAGS_MASK);
408 }
409
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0-DAY CI Kernel Test Service, Intel Corporation
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