Hi Vivek, I love your patch! Yet something to improve: [auto build test ERROR on fuse/for-next] [also build test ERROR on v4.20-rc6] [cannot apply to next-20181210] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Vivek-Goyal/virtio-fs-shared-file-system-for-virtual-machines/20181211-103034 base: https://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse.git for-next config: i386-randconfig-x006-201849 (attached as .config) compiler: gcc-7 (Debian 7.3.0-1) 7.3.0 reproduce: # save the attached .config to linux build tree make ARCH=i386 All errors (new ones prefixed by >>): fs//ext2/inode.c: In function 'ext2_dax_writepages': >> fs//ext2/inode.c:959:33: error: passing argument 3 of 'dax_writeback_mapping_range' from incompatible pointer type [-Werror=incompatible-pointer-types] mapping->host->i_sb->s_bdev, wbc); ^~~ In file included from fs//ext2/inode.c:29:0: include/linux/dax.h:120:19: note: expected 'struct dax_device *' but argument is of type 'struct writeback_control *' static inline int dax_writeback_mapping_range(struct address_space *mapping, ^~~~~~~~~~~~~~~~~~~~~~~~~~~ >> fs//ext2/inode.c:958:9: error: too few arguments to function 'dax_writeback_mapping_range' return dax_writeback_mapping_range(mapping, ^~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from fs//ext2/inode.c:29:0: include/linux/dax.h:120:19: note: declared here static inline int dax_writeback_mapping_range(struct address_space *mapping, ^~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/dax_writeback_mapping_range +959 fs//ext2/inode.c 7f6d5b52 Ross Zwisler 2016-02-26 954 fb094c90 Dan Williams 2017-12-21 955 static int fb094c90 Dan Williams 2017-12-21 956 ext2_dax_writepages(struct address_space *mapping, struct writeback_control *wbc) fb094c90 Dan Williams 2017-12-21 957 { fb094c90 Dan Williams 2017-12-21 @958 return dax_writeback_mapping_range(mapping, fb094c90 Dan Williams 2017-12-21 @959 mapping->host->i_sb->s_bdev, wbc); ^1da177e Linus Torvalds 2005-04-16 960 } ^1da177e Linus Torvalds 2005-04-16 961 :::::: The code at line 959 was first introduced by commit :::::: fb094c90748fbeba1063927eeb751add147b35b9 ext2, dax: introduce ext2_dax_aops :::::: TO: Dan Williams <dan.j.williams@xxxxxxxxx> :::::: CC: Dan Williams <dan.j.williams@xxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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