From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C11E82F34 for ; Fri, 20 May 2022 00:08:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1653005329; x=1684541329; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=n76Nf70LbuuyVSj3YywnVMm9NfECB3yjElc64LbA/GQ=; b=ORKatm+SfDbwM3/eJBTXkqWu3E5FsU8vMD0ALiiOJhRDxdbThzbIvElU 5cRCHe2MbIbrWba4Q/h4Aq9Tdnx3odEDpxBa4Hr8v/nAqXORykWtWkOzb Ak0gLRCtrCCRVsMTRNIxQLlCUqwvDeD0gowUhVBPac4b1WY2gOYDakYzU KUDXf0xnnPeB4s45VX9uC+XWRbyHuNvsF4+xdqxH7b3bZB+rW++t8ZvEM 21pOy0OeP7W4hyJkmv8MAJ3AV4FApsWKApI8USh4PLwougSTtZu4BsAuk xlBXwglgZaac+6JzfbkZjK5KAMguy8woTCFSwN/J5Gw0TyNBhtVIAttS2 g==; X-IronPort-AV: E=McAfee;i="6400,9594,10352"; a="271248047" X-IronPort-AV: E=Sophos;i="5.91,238,1647327600"; d="scan'208";a="271248047" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 May 2022 17:08:49 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.91,238,1647327600"; d="scan'208";a="546386573" Received: from lkp-server02.sh.intel.com (HELO 242b25809ac7) ([10.239.97.151]) by orsmga006.jf.intel.com with ESMTP; 19 May 2022 17:08:47 -0700 Received: from kbuild by 242b25809ac7 with local (Exim 4.95) (envelope-from ) id 1nrqCE-00044R-Ng; Fri, 20 May 2022 00:08:46 +0000 Date: Fri, 20 May 2022 08:08:04 +0800 From: kernel test robot To: Chih-En Lin Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org Subject: Re: [RFC PATCH 3/6] mm, pgtable: Add ownership for the PTE table Message-ID: <202205200836.FzJQhYQg-lkp@intel.com> References: <20220519183127.3909598-4-shiyn.lin@gmail.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220519183127.3909598-4-shiyn.lin@gmail.com> Hi Chih-En, [FYI, it's a private test report for your RFC patch.] [auto build test ERROR on tip/sched/core] [also build test ERROR on soc/for-next linus/master v5.18-rc7 next-20220519] [cannot apply to akpm-mm/mm-everything] [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/intel-lab-lkp/linux/commits/Chih-En-Lin/Introduce-Copy-On-Write-to-Page-Table/20220520-023243 base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 734387ec2f9d77b00276042b1fa7c95f48ee879d config: hexagon-randconfig-r041-20220519 (https://download.01.org/0day-ci/archive/20220520/202205200836.FzJQhYQg-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project e00cbbec06c08dc616a0d52a20f678b8fbd4e304) 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 # https://github.com/intel-lab-lkp/linux/commit/aa5b69eef6a0be734cd331cb3ab4172d854fb93c git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Chih-En-Lin/Introduce-Copy-On-Write-to-Page-Table/20220520-023243 git checkout aa5b69eef6a0be734cd331cb3ab4172d854fb93c # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon prepare If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): In file included from arch/hexagon/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:15: In file included from include/linux/socket.h:8: In file included from include/linux/uio.h:10: >> include/linux/mm_types.h:224:2: error: unknown type name 'pmd_t' pmd_t *cow_pte_owner; /* cow pte: pmd */ ^ >> include/linux/mm_types.h:278:1: error: static_assert failed due to requirement 'sizeof(struct page) == sizeof(struct folio)' "sizeof(struct page) == sizeof(struct folio)" static_assert(sizeof(struct page) == sizeof(struct folio)); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:77:34: note: expanded from macro 'static_assert' #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr) ^ ~~~~ include/linux/build_bug.h:78:41: note: expanded from macro '__static_assert' #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) ^ ~~~~ In file included from arch/hexagon/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:15: In file included from include/linux/socket.h:8: In file included from include/linux/uio.h:10: >> include/linux/mm_types.h:281:1: error: no member named 'flags' in 'folio' FOLIO_MATCH(flags, flags); ^ ~~~~~ include/linux/mm_types.h:280:45: note: expanded from macro 'FOLIO_MATCH' static_assert(offsetof(struct page, pg) == offsetof(struct folio, fl)) ^ ~~ include/linux/stddef.h:16:32: note: expanded from macro 'offsetof' #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) ^ ~~~~~~ include/linux/build_bug.h:77:50: note: expanded from macro 'static_assert' #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr) ^~~~ include/linux/build_bug.h:78:56: note: expanded from macro '__static_assert' #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) ^~~~ In file included from arch/hexagon/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:15: In file included from include/linux/socket.h:8: In file included from include/linux/uio.h:10: >> include/linux/mm_types.h:282:1: error: no member named 'lru' in 'folio' FOLIO_MATCH(lru, lru); ^ ~~~ include/linux/mm_types.h:280:45: note: expanded from macro 'FOLIO_MATCH' static_assert(offsetof(struct page, pg) == offsetof(struct folio, fl)) ^ ~~ include/linux/stddef.h:16:32: note: expanded from macro 'offsetof' #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) ^ ~~~~~~ include/linux/build_bug.h:77:50: note: expanded from macro 'static_assert' #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr) ^~~~ include/linux/build_bug.h:78:56: note: expanded from macro '__static_assert' #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) ^~~~ In file included from arch/hexagon/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:15: In file included from include/linux/socket.h:8: In file included from include/linux/uio.h:10: >> include/linux/mm_types.h:283:1: error: no member named 'mapping' in 'folio' FOLIO_MATCH(mapping, mapping); ^ ~~~~~~~ include/linux/mm_types.h:280:45: note: expanded from macro 'FOLIO_MATCH' static_assert(offsetof(struct page, pg) == offsetof(struct folio, fl)) ^ ~~ include/linux/stddef.h:16:32: note: expanded from macro 'offsetof' #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) ^ ~~~~~~ include/linux/build_bug.h:77:50: note: expanded from macro 'static_assert' #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr) ^~~~ include/linux/build_bug.h:78:56: note: expanded from macro '__static_assert' #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) ^~~~ In file included from arch/hexagon/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:15: In file included from include/linux/socket.h:8: In file included from include/linux/uio.h:10: include/linux/mm_types.h:284:1: error: no member named 'lru' in 'folio' FOLIO_MATCH(compound_head, lru); ^ ~~~ include/linux/mm_types.h:280:45: note: expanded from macro 'FOLIO_MATCH' static_assert(offsetof(struct page, pg) == offsetof(struct folio, fl)) ^ ~~ include/linux/stddef.h:16:32: note: expanded from macro 'offsetof' #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) ^ ~~~~~~ include/linux/build_bug.h:77:50: note: expanded from macro 'static_assert' #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr) ^~~~ include/linux/build_bug.h:78:56: note: expanded from macro '__static_assert' #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) ^~~~ In file included from arch/hexagon/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:15: In file included from include/linux/socket.h:8: In file included from include/linux/uio.h:10: >> include/linux/mm_types.h:285:1: error: no member named 'index' in 'folio' FOLIO_MATCH(index, index); ^ ~~~~~ include/linux/mm_types.h:280:45: note: expanded from macro 'FOLIO_MATCH' static_assert(offsetof(struct page, pg) == offsetof(struct folio, fl)) ^ ~~ include/linux/stddef.h:16:32: note: expanded from macro 'offsetof' #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) ^ ~~~~~~ include/linux/build_bug.h:77:50: note: expanded from macro 'static_assert' #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr) ^~~~ include/linux/build_bug.h:78:56: note: expanded from macro '__static_assert' #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) ^~~~ In file included from arch/hexagon/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:15: In file included from include/linux/socket.h:8: In file included from include/linux/uio.h:10: >> include/linux/mm_types.h:286:1: error: no member named 'private' in 'folio' FOLIO_MATCH(private, private); ^ ~~~~~~~ include/linux/mm_types.h:280:45: note: expanded from macro 'FOLIO_MATCH' static_assert(offsetof(struct page, pg) == offsetof(struct folio, fl)) ^ ~~ include/linux/stddef.h:16:32: note: expanded from macro 'offsetof' #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) ^ ~~~~~~ include/linux/build_bug.h:77:50: note: expanded from macro 'static_assert' #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr) ^~~~ include/linux/build_bug.h:78:56: note: expanded from macro '__static_assert' #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) ^~~~ In file included from arch/hexagon/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:15: In file included from include/linux/socket.h:8: In file included from include/linux/uio.h:10: >> include/linux/mm_types.h:287:1: error: no member named '_mapcount' in 'folio' FOLIO_MATCH(_mapcount, _mapcount); ^ ~~~~~~~~~ include/linux/mm_types.h:280:45: note: expanded from macro 'FOLIO_MATCH' static_assert(offsetof(struct page, pg) == offsetof(struct folio, fl)) ^ ~~ include/linux/stddef.h:16:32: note: expanded from macro 'offsetof' #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) ^ ~~~~~~ include/linux/build_bug.h:77:50: note: expanded from macro 'static_assert' #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr) ^~~~ include/linux/build_bug.h:78:56: note: expanded from macro '__static_assert' #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) ^~~~ In file included from arch/hexagon/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:15: In file included from include/linux/socket.h:8: In file included from include/linux/uio.h:10: >> include/linux/mm_types.h:288:1: error: no member named '_refcount' in 'folio' FOLIO_MATCH(_refcount, _refcount); ^ ~~~~~~~~~ include/linux/mm_types.h:280:45: note: expanded from macro 'FOLIO_MATCH' static_assert(offsetof(struct page, pg) == offsetof(struct folio, fl)) ^ ~~ include/linux/stddef.h:16:32: note: expanded from macro 'offsetof' #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) ^ ~~~~~~ include/linux/build_bug.h:77:50: note: expanded from macro 'static_assert' #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr) ^~~~ include/linux/build_bug.h:78:56: note: expanded from macro '__static_assert' #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) ^~~~ In file included from arch/hexagon/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:15: In file included from include/linux/socket.h:8: In file included from include/linux/uio.h:10: >> include/linux/mm_types.h:290:1: error: no member named 'memcg_data' in 'folio' FOLIO_MATCH(memcg_data, memcg_data); ^ ~~~~~~~~~~ include/linux/mm_types.h:280:45: note: expanded from macro 'FOLIO_MATCH' static_assert(offsetof(struct page, pg) == offsetof(struct folio, fl)) ^ ~~ include/linux/stddef.h:16:32: note: expanded from macro 'offsetof' #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) ^ ~~~~~~ include/linux/build_bug.h:77:50: note: expanded from macro 'static_assert' #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr) ^~~~ include/linux/build_bug.h:78:56: note: expanded from macro '__static_assert' #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) ^~~~ In file included from arch/hexagon/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:15: In file included from include/linux/socket.h:8: In file included from include/linux/uio.h:10: >> include/linux/mm_types.h:296:30: error: no member named 'page' in 'struct folio' struct page *tail = &folio->page + 1; ~~~~~ ^ >> include/linux/mm_types.h:333:16: error: no member named 'private' in 'struct folio' return folio->private; ~~~~~ ^ In file included from arch/hexagon/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:15: In file included from include/linux/socket.h:8: >> include/linux/uio.h:153:35: error: no member named 'page' in 'struct folio' return copy_page_to_iter(&folio->page, offset, bytes, i); ~~~~~ ^ In file included from arch/hexagon/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:17: In file included from include/linux/fs.h:13: In file included from include/linux/list_lru.h:14: In file included from include/linux/xarray.h:15: In file included from include/linux/gfp.h:6: In file included from include/linux/mmzone.h:22: >> include/linux/page-flags.h:327:30: error: no member named 'page' in 'struct folio' struct page *page = &folio->page; ~~~~~ ^ >> include/linux/page-flags.h:651:32: error: no member named 'mapping' in 'struct folio' return ((unsigned long)folio->mapping & PAGE_MAPPING_ANON) != 0; ~~~~~ ^ include/linux/page-flags.h:1049:34: error: no member named 'page' in 'struct folio' return page_has_private(&folio->page); ~~~~~ ^ In file included from arch/hexagon/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:17: In file included from include/linux/fs.h:33: In file included from include/linux/percpu-rwsem.h:7: In file included from include/linux/rcuwait.h:6: In file included from include/linux/sched/signal.h:6: include/linux/signal.h:97:11: warning: array index 3 is past the end of the array (which contains 2 elements) [-Warray-bounds] return (set->sig[3] | set->sig[2] | ^ ~ include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here unsigned long sig[_NSIG_WORDS]; ^ In file included from arch/hexagon/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:17: In file included from include/linux/fs.h:33: In file included from include/linux/percpu-rwsem.h:7: In file included from include/linux/rcuwait.h:6: In file included from include/linux/sched/signal.h:6: include/linux/signal.h:97:25: warning: array index 2 is past the end of the array (which contains 2 elements) [-Warray-bounds] return (set->sig[3] | set->sig[2] | ^ ~ include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here unsigned long sig[_NSIG_WORDS]; ^ In file included from arch/hexagon/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:17: In file included from include/linux/fs.h:33: In file included from include/linux/percpu-rwsem.h:7: In file included from include/linux/rcuwait.h:6: In file included from include/linux/sched/signal.h:6: include/linux/signal.h:113:11: warning: array index 3 is past the end of the array (which contains 2 elements) [-Warray-bounds] return (set1->sig[3] == set2->sig[3]) && ^ ~ include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here unsigned long sig[_NSIG_WORDS]; ^ In file included from arch/hexagon/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:17: In file included from include/linux/fs.h:33: In file included from include/linux/percpu-rwsem.h:7: In file included from include/linux/rcuwait.h:6: In file included from include/linux/sched/signal.h:6: include/linux/signal.h:113:27: warning: array index 3 is past the end of the array (which contains 2 elements) [-Warray-bounds] return (set1->sig[3] == set2->sig[3]) && ^ ~ include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here unsigned long sig[_NSIG_WORDS]; ^ In file included from arch/hexagon/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:17: In file included from include/linux/fs.h:33: In file included from include/linux/percpu-rwsem.h:7: In file included from include/linux/rcuwait.h:6: In file included from include/linux/sched/signal.h:6: include/linux/signal.h:114:5: warning: array index 2 is past the end of the array (which contains 2 elements) [-Warray-bounds] (set1->sig[2] == set2->sig[2]) && ^ ~ include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here unsigned long sig[_NSIG_WORDS]; ^ In file included from arch/hexagon/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:17: In file included from include/linux/fs.h:33: In file included from include/linux/percpu-rwsem.h:7: In file included from include/linux/rcuwait.h:6: In file included from include/linux/sched/signal.h:6: include/linux/signal.h:114:21: warning: array index 2 is past the end of the array (which contains 2 elements) [-Warray-bounds] (set1->sig[2] == set2->sig[2]) && ^ ~ include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here unsigned long sig[_NSIG_WORDS]; ^ In file included from arch/hexagon/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:17: In file included from include/linux/fs.h:33: In file included from include/linux/percpu-rwsem.h:7: In file included from include/linux/rcuwait.h:6: In file included from include/linux/sched/signal.h:6: include/linux/signal.h:156:1: warning: array index 3 is past the end of the array (which contains 2 elements) [-Warray-bounds] _SIG_SET_BINOP(sigorsets, _sig_or) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/signal.h:137:8: note: expanded from macro '_SIG_SET_BINOP' a3 = a->sig[3]; a2 = a->sig[2]; \ ^ ~ include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here unsigned long sig[_NSIG_WORDS]; ^ In file included from arch/hexagon/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:17: In file included from include/linux/fs.h:33: In file included from include/linux/percpu-rwsem.h:7: In file included from include/linux/rcuwait.h:6: In file included from include/linux/sched/signal.h:6: include/linux/signal.h:156:1: warning: array index 2 is past the end of the array (which contains 2 elements) [-Warray-bounds] _SIG_SET_BINOP(sigorsets, _sig_or) vim +/pmd_t +224 include/linux/mm_types.h 220 221 #ifdef LAST_CPUPID_NOT_IN_PAGE_FLAGS 222 int _last_cpupid; 223 #endif > 224 pmd_t *cow_pte_owner; /* cow pte: pmd */ 225 } _struct_page_alignment; 226 227 /** 228 * struct folio - Represents a contiguous set of bytes. 229 * @flags: Identical to the page flags. 230 * @lru: Least Recently Used list; tracks how recently this folio was used. 231 * @mapping: The file this page belongs to, or refers to the anon_vma for 232 * anonymous memory. 233 * @index: Offset within the file, in units of pages. For anonymous memory, 234 * this is the index from the beginning of the mmap. 235 * @private: Filesystem per-folio data (see folio_attach_private()). 236 * Used for swp_entry_t if folio_test_swapcache(). 237 * @_mapcount: Do not access this member directly. Use folio_mapcount() to 238 * find out how many times this folio is mapped by userspace. 239 * @_refcount: Do not access this member directly. Use folio_ref_count() 240 * to find how many references there are to this folio. 241 * @memcg_data: Memory Control Group data. 242 * 243 * A folio is a physically, virtually and logically contiguous set 244 * of bytes. It is a power-of-two in size, and it is aligned to that 245 * same power-of-two. It is at least as large as %PAGE_SIZE. If it is 246 * in the page cache, it is at a file offset which is a multiple of that 247 * power-of-two. It may be mapped into userspace at an address which is 248 * at an arbitrary page offset, but its kernel virtual address is aligned 249 * to its size. 250 */ 251 struct folio { 252 /* private: don't document the anon union */ 253 union { 254 struct { 255 /* public: */ 256 unsigned long flags; 257 union { 258 struct list_head lru; 259 struct { 260 void *__filler; 261 unsigned int mlock_count; 262 }; 263 }; 264 struct address_space *mapping; 265 pgoff_t index; 266 void *private; 267 atomic_t _mapcount; 268 atomic_t _refcount; 269 #ifdef CONFIG_MEMCG 270 unsigned long memcg_data; 271 #endif 272 /* private: the union with struct page is transitional */ 273 }; 274 struct page page; 275 }; 276 }; 277 > 278 static_assert(sizeof(struct page) == sizeof(struct folio)); 279 #define FOLIO_MATCH(pg, fl) \ 280 static_assert(offsetof(struct page, pg) == offsetof(struct folio, fl)) > 281 FOLIO_MATCH(flags, flags); > 282 FOLIO_MATCH(lru, lru); > 283 FOLIO_MATCH(mapping, mapping); 284 FOLIO_MATCH(compound_head, lru); > 285 FOLIO_MATCH(index, index); > 286 FOLIO_MATCH(private, private); > 287 FOLIO_MATCH(_mapcount, _mapcount); > 288 FOLIO_MATCH(_refcount, _refcount); 289 #ifdef CONFIG_MEMCG > 290 FOLIO_MATCH(memcg_data, memcg_data); 291 #endif 292 #undef FOLIO_MATCH 293 294 static inline atomic_t *folio_mapcount_ptr(struct folio *folio) 295 { > 296 struct page *tail = &folio->page + 1; 297 return &tail->compound_mapcount; 298 } 299 300 static inline atomic_t *compound_mapcount_ptr(struct page *page) 301 { 302 return &page[1].compound_mapcount; 303 } 304 305 static inline atomic_t *compound_pincount_ptr(struct page *page) 306 { 307 return &page[1].compound_pincount; 308 } 309 310 /* 311 * Used for sizing the vmemmap region on some architectures 312 */ 313 #define STRUCT_PAGE_MAX_SHIFT (order_base_2(sizeof(struct page))) 314 315 #define PAGE_FRAG_CACHE_MAX_SIZE __ALIGN_MASK(32768, ~PAGE_MASK) 316 #define PAGE_FRAG_CACHE_MAX_ORDER get_order(PAGE_FRAG_CACHE_MAX_SIZE) 317 318 /* 319 * page_private can be used on tail pages. However, PagePrivate is only 320 * checked by the VM on the head page. So page_private on the tail pages 321 * should be used for data that's ancillary to the head page (eg attaching 322 * buffer heads to tail pages after attaching buffer heads to the head page) 323 */ 324 #define page_private(page) ((page)->private) 325 326 static inline void set_page_private(struct page *page, unsigned long private) 327 { 328 page->private = private; 329 } 330 331 static inline void *folio_get_private(struct folio *folio) 332 { > 333 return folio->private; 334 } 335 -- 0-DAY CI Kernel Test Service https://01.org/lkp