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Open Source and information security mailing list archives
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Date: Wed, 14 Sep 2022 19:59:06 +0800
From: kernel test robot <lkp@...el.com>
To: Dan Williams <dan.j.williams@...el.com>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [djbw-nvdimm:libnvdimm-pending 16/22]
arch/powerpc/include/asm/pgalloc.h:9:1: error: expected '=', ',', ';', 'asm'
or '__attribute__' before '{' token
Hi Dan,
FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm.git libnvdimm-pending
head: e27a0356de15f16934325784c6b1d89cf0f13458
commit: 155ac6b670cf6385f6dd14910560d569560af889 [16/22] devdax: Move address_space helpers to the DAX core
config: powerpc-allnoconfig (https://download.01.org/0day-ci/archive/20220914/202209141938.l6Ot2o1K-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 12.1.0
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://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm.git/commit/?id=155ac6b670cf6385f6dd14910560d569560af889
git remote add djbw-nvdimm https://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm.git
git fetch --no-tags djbw-nvdimm libnvdimm-pending
git checkout 155ac6b670cf6385f6dd14910560d569560af889
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>
All error/warnings (new ones prefixed by >>):
include/trace/events/vmscan.h:328:2: error: expected declaration specifiers before ';' token
328 | );
| ^
include/trace/events/vmscan.h:351:2: error: expected declaration specifiers before ';' token
351 | );
| ^
include/trace/events/vmscan.h:402:2: error: expected declaration specifiers before ';' token
402 | );
| ^
include/trace/events/vmscan.h:438:2: error: expected declaration specifiers before ';' token
438 | );
| ^
include/trace/events/vmscan.h:462:2: error: expected declaration specifiers before ';' token
462 | );
| ^
include/trace/events/vmscan.h:469:2: error: expected declaration specifiers before ';' token
469 | );
| ^
include/trace/events/vmscan.h:496:2: error: expected declaration specifiers before ';' token
496 | );
| ^
mm/vmscan.c:66:1: warning: empty declaration
66 | struct scan_control {
| ^~~~~~
mm/vmscan.c:181:1: error: parameter 'vm_swappiness' is initialized
181 | int vm_swappiness = 60;
| ^~~
mm/vmscan.c:185:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
185 | {
| ^
In file included from include/linux/preempt.h:11,
from include/linux/spinlock.h:55:
include/linux/list.h:26:16: error: parameter 'shrinker_list' is initialized
26 | struct list_head name = LIST_HEAD_INIT(name)
| ^~~~~~~~~
mm/vmscan.c:195:1: note: in expansion of macro 'LIST_HEAD'
195 | LIST_HEAD(shrinker_list);
| ^~~~~~~~~
In file included from include/linux/mm_types.h:12,
from include/linux/mmzone.h:21:
include/linux/rwsem.h:101:16: error: parameter 'shrinker_rwsem' is initialized
101 | struct rw_semaphore name = __RWSEM_INITIALIZER(name)
| ^~~~~~~~~~~~
mm/vmscan.c:196:1: note: in expansion of macro 'DECLARE_RWSEM'
196 | DECLARE_RWSEM(shrinker_rwsem);
| ^~~~~~~~~~~~~
mm/vmscan.c:465:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
465 | {
| ^
mm/vmscan.c:470:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
470 | {
| ^
mm/vmscan.c:475:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
475 | {
| ^
mm/vmscan.c:481:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
481 | {
| ^
mm/vmscan.c:486:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
486 | {
| ^
mm/vmscan.c:491:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
491 | {
| ^
mm/vmscan.c:498:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
498 | {
| ^
mm/vmscan.c:515:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
515 | {
| ^
mm/vmscan.c:530:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
530 | {
| ^
mm/vmscan.c:544:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
544 | {
| ^
mm/vmscan.c:572:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
572 | {
| ^
mm/vmscan.c:592:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
592 | {
| ^
mm/vmscan.c:614:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
614 | {
| ^
mm/vmscan.c:659:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
659 | {
| ^
mm/vmscan.c:665:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
665 | {
| ^
mm/vmscan.c:682:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
682 | {
| ^
mm/vmscan.c:691:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
691 | {
| ^
mm/vmscan.c:721:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
721 | {
| ^
>> mm/vmscan.c:725:33: error: expected declaration specifiers before ';' token
725 | EXPORT_SYMBOL(register_shrinker);
| ^
mm/vmscan.c:731:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
731 | {
| ^
mm/vmscan.c:746:35: error: expected declaration specifiers before ';' token
746 | EXPORT_SYMBOL(unregister_shrinker);
| ^
mm/vmscan.c:757:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
757 | {
| ^
mm/vmscan.c:761:37: error: expected declaration specifiers before ';' token
761 | EXPORT_SYMBOL(synchronize_shrinkers);
| ^
mm/vmscan.c:767:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
767 | {
| ^
mm/vmscan.c:939:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
939 | {
| ^
mm/vmscan.c:967:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
967 | {
| ^
mm/vmscan.c:1013:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
1013 | {
| ^
mm/vmscan.c:1032:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
1032 | {
| ^
mm/vmscan.c:1040:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
1040 | {
| ^
mm/vmscan.c:1064:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
1064 | {
| ^
mm/vmscan.c:1072:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
1072 | {
| ^
mm/vmscan.c:1105:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
1105 | {
| ^
mm/vmscan.c:1180:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
1180 | {
| ^
mm/vmscan.c:1209:3: error: storage class specified for parameter 'pageout_t'
1209 | } pageout_t;
| ^~~~~~~~~
mm/vmscan.c:1215:18: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'pageout'
1215 | static pageout_t pageout(struct folio *folio, struct address_space *mapping,
| ^~~~~~~
mm/vmscan.c:1291:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
1291 | {
| ^
mm/vmscan.c:1398:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
1398 | {
| ^
mm/vmscan.c:1421:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
1421 | {
| ^
mm/vmscan.c:1426:1: warning: empty declaration
1426 | enum page_references {
| ^~~~
mm/vmscan.c:1435:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
1435 | {
| ^
mm/vmscan.c:1493:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
1493 | {
| ^
mm/vmscan.c:1524:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
1524 | {
| ^
mm/vmscan.c:1547:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
1547 | {
| ^
mm/vmscan.c:1571:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
1571 | {
| ^
mm/vmscan.c:1594:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
1594 | {
| ^
mm/vmscan.c:2052:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
2052 | {
| ^
mm/vmscan.c:2105:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
2105 | {
| ^
mm/vmscan.c:2142:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
2142 | {
| ^
mm/vmscan.c:2255:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
2255 | {
| ^
mm/vmscan.c:2282:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
2282 | {
| ^
mm/vmscan.c:2325:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
2325 | {
| ^
mm/vmscan.c:2393:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
2393 | {
--
| ^
mm/vmscan.c:2941:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
2941 | {
| ^
mm/vmscan.c:2951:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
2951 | {
| ^
mm/vmscan.c:3067:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
3067 | {
| ^
mm/vmscan.c:3086:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
3086 | {
| ^
mm/vmscan.c:3137:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
3137 | {
| ^
mm/vmscan.c:3195:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
3195 | {
| ^
mm/vmscan.c:3399:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
3399 | {
| ^
mm/vmscan.c:3426:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
3426 | {
| ^
mm/vmscan.c:3464:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
3464 | {
| ^
mm/vmscan.c:3556:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
3556 | {
| ^
mm/vmscan.c:3585:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
3585 | {
| ^
mm/vmscan.c:3673:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
3673 | {
| ^
mm/vmscan.c:3723:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
3723 | {
| ^
mm/vmscan.c:3803:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
3803 | {
| ^
mm/vmscan.c:3928:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
3928 | {
| ^
mm/vmscan.c:3949:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
3949 | {
| ^
mm/vmscan.c:3977:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
3977 | {
| ^
mm/vmscan.c:4013:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
4013 | {
| ^
mm/vmscan.c:4029:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
4029 | {
| ^
mm/vmscan.c:4068:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
4068 | {
| ^
mm/vmscan.c:4104:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
4104 | {
| ^
mm/vmscan.c:4123:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
4123 | {
| ^
mm/vmscan.c:4129:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
4129 | {
| ^
mm/vmscan.c:4147:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
4147 | {
| ^
mm/vmscan.c:4366:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
4366 | {
| ^
mm/vmscan.c:4374:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
4374 | {
| ^
mm/vmscan.c:4470:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
4470 | {
| ^
mm/vmscan.c:4557:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
4557 | {
| ^
mm/vmscan.c:4643:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
4643 | {
| ^
mm/vmscan.c:4663:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
4663 | {
| ^
mm/vmscan.c:4673:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
4673 | {
| ^
In file included from include/linux/printk.h:6,
from include/asm-generic/bug.h:22,
from arch/powerpc/include/asm/bug.h:158,
from include/linux/bug.h:5,
from include/linux/mmdebug.h:5,
from include/linux/mm.h:6:
>> include/linux/init.h:198:17: error: storage class specified for parameter '__initcall__kmod_vmscan__315_4682_kswapd_init6'
198 | __PASTE(__, \
| ^~
include/linux/init.h:249:27: note: in definition of macro '____define_initcall'
249 | static initcall_t __name __used \
| ^~~~~~
include/linux/compiler_types.h:70:22: note: in expansion of macro '___PASTE'
70 | #define __PASTE(a,b) ___PASTE(a,b)
| ^~~~~~~~
include/linux/init.h:198:9: note: in expansion of macro '__PASTE'
198 | __PASTE(__, \
| ^~~~~~~
include/linux/init.h:256:17: note: in expansion of macro '__initcall_name'
256 | __initcall_name(initcall, __iid, id), \
| ^~~~~~~~~~~~~~~
include/linux/init.h:260:9: note: in expansion of macro '__unique_initcall'
260 | __unique_initcall(fn, id, __sec, __initcall_id(fn))
| ^~~~~~~~~~~~~~~~~
include/linux/init.h:262:35: note: in expansion of macro '___define_initcall'
262 | #define __define_initcall(fn, id) ___define_initcall(fn, id, .initcall##id)
| ^~~~~~~~~~~~~~~~~~
include/linux/init.h:291:41: note: in expansion of macro '__define_initcall'
291 | #define device_initcall(fn) __define_initcall(fn, 6)
| ^~~~~~~~~~~~~~~~~
include/linux/init.h:296:24: note: in expansion of macro 'device_initcall'
296 | #define __initcall(fn) device_initcall(fn)
| ^~~~~~~~~~~~~~~
include/linux/module.h:88:25: note: in expansion of macro '__initcall'
88 | #define module_init(x) __initcall(x);
| ^~~~~~~~~~
mm/vmscan.c:4682:1: note: in expansion of macro 'module_init'
4682 | module_init(kswapd_init)
| ^~~~~~~~~~~
>> mm/vmscan.c:4682:1: error: parameter '__initcall__kmod_vmscan__315_4682_kswapd_init6' is initialized
mm/vmscan.c:4682:1: warning: 'used' attribute ignored [-Wattributes]
>> include/linux/init.h:198:17: error: section attribute not allowed for '__initcall__kmod_vmscan__315_4682_kswapd_init6'
198 | __PASTE(__, \
| ^~
include/linux/init.h:249:27: note: in definition of macro '____define_initcall'
249 | static initcall_t __name __used \
| ^~~~~~
include/linux/compiler_types.h:70:22: note: in expansion of macro '___PASTE'
70 | #define __PASTE(a,b) ___PASTE(a,b)
| ^~~~~~~~
include/linux/init.h:198:9: note: in expansion of macro '__PASTE'
198 | __PASTE(__, \
| ^~~~~~~
include/linux/init.h:256:17: note: in expansion of macro '__initcall_name'
256 | __initcall_name(initcall, __iid, id), \
| ^~~~~~~~~~~~~~~
include/linux/init.h:260:9: note: in expansion of macro '__unique_initcall'
260 | __unique_initcall(fn, id, __sec, __initcall_id(fn))
| ^~~~~~~~~~~~~~~~~
include/linux/init.h:262:35: note: in expansion of macro '___define_initcall'
262 | #define __define_initcall(fn, id) ___define_initcall(fn, id, .initcall##id)
| ^~~~~~~~~~~~~~~~~~
include/linux/init.h:291:41: note: in expansion of macro '__define_initcall'
291 | #define device_initcall(fn) __define_initcall(fn, 6)
| ^~~~~~~~~~~~~~~~~
include/linux/init.h:296:24: note: in expansion of macro 'device_initcall'
296 | #define __initcall(fn) device_initcall(fn)
| ^~~~~~~~~~~~~~~
include/linux/module.h:88:25: note: in expansion of macro '__initcall'
88 | #define module_init(x) __initcall(x);
| ^~~~~~~~~~
mm/vmscan.c:4682:1: note: in expansion of macro 'module_init'
4682 | module_init(kswapd_init)
| ^~~~~~~~~~~
mm/vmscan.c:4682:13: error: 'kswapd_init' undeclared (first use in this function); did you mean 'trap_init'?
4682 | module_init(kswapd_init)
| ^~~~~~~~~~~
include/linux/init.h:250:55: note: in definition of macro '____define_initcall'
250 | __attribute__((__section__(__sec))) = fn;
| ^~
include/linux/init.h:260:9: note: in expansion of macro '__unique_initcall'
260 | __unique_initcall(fn, id, __sec, __initcall_id(fn))
| ^~~~~~~~~~~~~~~~~
include/linux/init.h:262:35: note: in expansion of macro '___define_initcall'
262 | #define __define_initcall(fn, id) ___define_initcall(fn, id, .initcall##id)
| ^~~~~~~~~~~~~~~~~~
include/linux/init.h:291:41: note: in expansion of macro '__define_initcall'
291 | #define device_initcall(fn) __define_initcall(fn, 6)
| ^~~~~~~~~~~~~~~~~
include/linux/init.h:296:24: note: in expansion of macro 'device_initcall'
296 | #define __initcall(fn) device_initcall(fn)
| ^~~~~~~~~~~~~~~
include/linux/module.h:88:25: note: in expansion of macro '__initcall'
88 | #define module_init(x) __initcall(x);
| ^~~~~~~~~~
mm/vmscan.c:4682:1: note: in expansion of macro 'module_init'
4682 | module_init(kswapd_init)
| ^~~~~~~~~~~
mm/vmscan.c:4682:13: note: each undeclared identifier is reported only once for each function it appears in
4682 | module_init(kswapd_init)
| ^~~~~~~~~~~
include/linux/init.h:250:55: note: in definition of macro '____define_initcall'
250 | __attribute__((__section__(__sec))) = fn;
| ^~
include/linux/init.h:260:9: note: in expansion of macro '__unique_initcall'
260 | __unique_initcall(fn, id, __sec, __initcall_id(fn))
| ^~~~~~~~~~~~~~~~~
include/linux/init.h:262:35: note: in expansion of macro '___define_initcall'
262 | #define __define_initcall(fn, id) ___define_initcall(fn, id, .initcall##id)
| ^~~~~~~~~~~~~~~~~~
include/linux/init.h:291:41: note: in expansion of macro '__define_initcall'
291 | #define device_initcall(fn) __define_initcall(fn, 6)
| ^~~~~~~~~~~~~~~~~
include/linux/init.h:296:24: note: in expansion of macro 'device_initcall'
296 | #define __initcall(fn) device_initcall(fn)
| ^~~~~~~~~~~~~~~
include/linux/module.h:88:25: note: in expansion of macro '__initcall'
88 | #define module_init(x) __initcall(x);
| ^~~~~~~~~~
mm/vmscan.c:4682:1: note: in expansion of macro 'module_init'
4682 | module_init(kswapd_init)
| ^~~~~~~~~~~
In file included from mm/vmscan.c:17:
include/linux/module.h:88:38: error: expected declaration specifiers before ';' token
88 | #define module_init(x) __initcall(x);
| ^
mm/vmscan.c:4682:1: note: in expansion of macro 'module_init'
4682 | module_init(kswapd_init)
| ^~~~~~~~~~~
mm/vmscan.c:4856:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
4856 | {
| ^
mm/vmscan.c:4870:48: error: expected declaration specifiers before ';' token
4870 | EXPORT_SYMBOL_GPL(check_move_unevictable_pages);
| ^
mm/vmscan.c:4882:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
4882 | {
| ^
mm/vmscan.c:4916:49: error: expected declaration specifiers before ';' token
4916 | EXPORT_SYMBOL_GPL(check_move_unevictable_folios);
| ^
include/linux/dax.h:193:28: error: old-style parameter declarations in prototyped function definition
..
vim +9 arch/powerpc/include/asm/pgalloc.h
0186f47e703fb7 Kumar Gala 2008-11-19 6
de3b87611dd1f3 Balbir Singh 2017-05-02 7 #ifndef MODULE
de3b87611dd1f3 Balbir Singh 2017-05-02 8 static inline gfp_t pgtable_gfp_flags(struct mm_struct *mm, gfp_t gfp)
de3b87611dd1f3 Balbir Singh 2017-05-02 @9 {
de3b87611dd1f3 Balbir Singh 2017-05-02 10 if (unlikely(mm == &init_mm))
de3b87611dd1f3 Balbir Singh 2017-05-02 11 return gfp;
de3b87611dd1f3 Balbir Singh 2017-05-02 12 return gfp | __GFP_ACCOUNT;
de3b87611dd1f3 Balbir Singh 2017-05-02 13 }
de3b87611dd1f3 Balbir Singh 2017-05-02 14 #else /* !MODULE */
de3b87611dd1f3 Balbir Singh 2017-05-02 15 static inline gfp_t pgtable_gfp_flags(struct mm_struct *mm, gfp_t gfp)
de3b87611dd1f3 Balbir Singh 2017-05-02 16 {
de3b87611dd1f3 Balbir Singh 2017-05-02 17 return gfp | __GFP_ACCOUNT;
de3b87611dd1f3 Balbir Singh 2017-05-02 18 }
de3b87611dd1f3 Balbir Singh 2017-05-02 19 #endif /* MODULE */
de3b87611dd1f3 Balbir Singh 2017-05-02 20
75f296d93bcebc Levin, Alexander (Sasha Levin 2017-11-15 21) #define PGALLOC_GFP (GFP_KERNEL | __GFP_ZERO)
5b6c133e080100 Michael Ellerman 2017-08-15 22
dc096864ba784c Christophe Leroy 2019-04-26 23 pte_t *pte_fragment_alloc(struct mm_struct *mm, int kernel);
dc096864ba784c Christophe Leroy 2019-04-26 24
dc096864ba784c Christophe Leroy 2019-04-26 25 static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
dc096864ba784c Christophe Leroy 2019-04-26 26 {
dc096864ba784c Christophe Leroy 2019-04-26 27 return (pte_t *)pte_fragment_alloc(mm, 1);
dc096864ba784c Christophe Leroy 2019-04-26 28 }
dc096864ba784c Christophe Leroy 2019-04-26 29
dc096864ba784c Christophe Leroy 2019-04-26 30 static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
dc096864ba784c Christophe Leroy 2019-04-26 31 {
dc096864ba784c Christophe Leroy 2019-04-26 32 return (pgtable_t)pte_fragment_alloc(mm, 0);
dc096864ba784c Christophe Leroy 2019-04-26 33 }
dc096864ba784c Christophe Leroy 2019-04-26 34
dc096864ba784c Christophe Leroy 2019-04-26 35 void pte_frag_destroy(void *pte_frag);
dc096864ba784c Christophe Leroy 2019-04-26 36 void pte_fragment_free(unsigned long *table, int kernel);
dc096864ba784c Christophe Leroy 2019-04-26 37
dc096864ba784c Christophe Leroy 2019-04-26 38 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
dc096864ba784c Christophe Leroy 2019-04-26 39 {
dc096864ba784c Christophe Leroy 2019-04-26 40 pte_fragment_free((unsigned long *)pte, 1);
dc096864ba784c Christophe Leroy 2019-04-26 41 }
dc096864ba784c Christophe Leroy 2019-04-26 42
dc096864ba784c Christophe Leroy 2019-04-26 43 static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage)
dc096864ba784c Christophe Leroy 2019-04-26 44 {
dc096864ba784c Christophe Leroy 2019-04-26 45 pte_fragment_free((unsigned long *)ptepage, 0);
dc096864ba784c Christophe Leroy 2019-04-26 46 }
dc096864ba784c Christophe Leroy 2019-04-26 47
e80789a3c13f9f Christophe Leroy 2019-04-26 48 /*
e80789a3c13f9f Christophe Leroy 2019-04-26 49 * Functions that deal with pagetables that could be at any level of
e80789a3c13f9f Christophe Leroy 2019-04-26 50 * the table need to be passed an "index_size" so they know how to
e80789a3c13f9f Christophe Leroy 2019-04-26 51 * handle allocation. For PTE pages, the allocation size will be
e80789a3c13f9f Christophe Leroy 2019-04-26 52 * (2^index_size * sizeof(pointer)) and allocations are drawn from
e80789a3c13f9f Christophe Leroy 2019-04-26 53 * the kmem_cache in PGT_CACHE(index_size).
e80789a3c13f9f Christophe Leroy 2019-04-26 54 *
e80789a3c13f9f Christophe Leroy 2019-04-26 55 * The maximum index size needs to be big enough to allow any
e80789a3c13f9f Christophe Leroy 2019-04-26 56 * pagetable sizes we need, but small enough to fit in the low bits of
e80789a3c13f9f Christophe Leroy 2019-04-26 57 * any page table pointer. In other words all pagetables, even tiny
e80789a3c13f9f Christophe Leroy 2019-04-26 58 * ones, must be aligned to allow at least enough low 0 bits to
e80789a3c13f9f Christophe Leroy 2019-04-26 59 * contain this value. This value is also used as a mask, so it must
e80789a3c13f9f Christophe Leroy 2019-04-26 60 * be one less than a power of two.
e80789a3c13f9f Christophe Leroy 2019-04-26 61 */
e80789a3c13f9f Christophe Leroy 2019-04-26 62 #define MAX_PGTABLE_INDEX_SIZE 0xf
e80789a3c13f9f Christophe Leroy 2019-04-26 63
e80789a3c13f9f Christophe Leroy 2019-04-26 @64 extern struct kmem_cache *pgtable_cache[];
e80789a3c13f9f Christophe Leroy 2019-04-26 65 #define PGT_CACHE(shift) pgtable_cache[shift]
e80789a3c13f9f Christophe Leroy 2019-04-26 66
:::::: The code at line 9 was first introduced by commit
:::::: de3b87611dd1f3c00f4e42fe298457260ea781e0 powerpc/mm/book(e)(3s)/64: Add page table accounting
:::::: TO: Balbir Singh <bsingharora@...il.com>
:::::: CC: Michael Ellerman <mpe@...erman.id.au>
--
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