[miklos-vfs:overlayfs-next 5/6] readahead.c:undefined reference to `vfs_fadvise'

kbuild test robot <lkp@xxxxxxxxx> · Fri, 31 Aug 2018 00:34:43 +0800

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs.git overlayfs-next
head:   53e35e7602b1cb11751e1788a888c6d74463c6c0
commit: 2c19a142435e6270ed194206deddfa056181f30a [5/6] vfs: implement readahead(2) using POSIX_FADV_WILLNEED
config: i386-tinyconfig (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
        git checkout 2c19a142435e6270ed194206deddfa056181f30a
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   mm/readahead.o: In function `ksys_readahead':
>> readahead.c:(.text+0x651): undefined reference to `vfs_fadvise'

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