[goldwynr:btrfs-iomap 26/37] include/linux/page-flags-layout.h:95:2: error: #error "Not enough bits in page flags"

[goldwynr:btrfs-iomap 26/37] include/linux/page-flags-layout.h:95:2: error: #error "Not enough bits in page flags"

[kbuild test robot]

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tree:   https://github.com/goldwynr/linux btrfs-iomap
head:   e59ace8d00fdaf2bdd99d9606791e6591bff5730
commit: cd72e475faa50b2e668d2c547044de25edd82e9b [26/37] btrfs: Use PagePrivate3 for marking data pages as used by btrfs
config: i386-randconfig-a003-201944 (attached as .config)
compiler: gcc-7 (Debian 7.4.0-14) 7.4.0
reproduce:
        git checkout cd72e475faa50b2e668d2c547044de25edd82e9b
        # save the attached .config to linux build tree
        make ARCH=i386 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   In file included from include/linux/mmzone.h:19:0,
                    from include/linux/gfp.h:6,
                    from include/linux/slab.h:15,
                    from include/linux/crypto.h:19,
                    from arch/x86/kernel/asm-offsets.c:9:
>> include/linux/page-flags-layout.h:95:2: error: #error "Not enough bits in page flags"
    #error "Not enough bits in page flags"
     ^~~~~
   In file included from include/linux/memcontrol.h:20:0,
                    from include/linux/swap.h:9,
                    from include/linux/suspend.h:5,
                    from arch/x86/kernel/asm-offsets.c:13:
   include/linux/mm.h:945:2: error: #error SECTIONS_WIDTH+NODES_WIDTH+ZONES_WIDTH > BITS_PER_LONG - NR_PAGEFLAGS
    #error SECTIONS_WIDTH+NODES_WIDTH+ZONES_WIDTH > BITS_PER_LONG - NR_PAGEFLAGS
     ^~~~~
   make[2]: *** [arch/x86/kernel/asm-offsets.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [sub-make] Error 2
   25 real  7 user  6 sys  54.14% cpu 	make prepare

vim +95 include/linux/page-flags-layout.h

75980e97daccfc Peter Zijlstra   2013-02-22  92  
2813b9c0296259 Andrey Konovalov 2018-12-28  93  #if SECTIONS_WIDTH+NODES_WIDTH+ZONES_WIDTH+LAST_CPUPID_WIDTH+KASAN_TAG_WIDTH \
2813b9c0296259 Andrey Konovalov 2018-12-28  94  	> BITS_PER_LONG - NR_PAGEFLAGS
ee38d94a0ad898 Arnd Bergmann    2019-08-02 @95  #error "Not enough bits in page flags"
2813b9c0296259 Andrey Konovalov 2018-12-28  96  #endif
2813b9c0296259 Andrey Konovalov 2018-12-28  97  

:::::: The code at line 95 was first introduced by commit
:::::: ee38d94a0ad89890b770f6c876263cf9fcbfde84 page flags: prioritize kasan bits over last-cpuid

:::::: TO: Arnd Bergmann <arnd@arndb.de>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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