CC: kbuild-...@lists.01.org TO: "Jens, Axboe," <ax...@kernel.dk>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git async-readahead head: 77ca3affd737b5ca9f4222ead263a55b5a663e79 commit: ed611876580275e085cba3bb9c1f948ad5d882ab [15/20] fs: make aops->readpages() take kiocb argument :::::: branch date: 4 hours ago :::::: commit date: 6 hours ago config: i386-randconfig-s002-20200601 (attached as .config) compiler: gcc-9 (Debian 9.3.0-13) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.1-243-gc100a7ab-dirty git checkout ed611876580275e085cba3bb9c1f948ad5d882ab # save the attached .config to linux build tree make W=1 C=1 ARCH=i386 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <l...@intel.com> sparse warnings: (new ones prefixed by >>) >> fs/nfs/file.c:515:22: sparse: sparse: incorrect type in initializer >> (incompatible argument 1 (different base types)) @@ expected int ( >> *readpages )( ... ) @@ got int ( * )( ... ) @@ >> fs/nfs/file.c:515:22: sparse: expected int ( *readpages )( ... ) >> fs/nfs/file.c:515:22: sparse: got int ( * )( ... ) -- fs/nfs/read.c:405:5: sparse: sparse: symbol 'nfs_readpages' redeclared with different type (incompatible argument 1 (different base types)): >> fs/nfs/read.c:405:5: sparse: int extern [addressable] [signed] [toplevel] >> nfs_readpages( ... ) >> include/linux/nfs_fs.h:553:13: sparse: note: previously declared as: >> include/linux/nfs_fs.h:553:13: sparse: int extern [addressable] [signed] >> [toplevel] nfs_readpages( ... ) # https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git/commit/?id=ed611876580275e085cba3bb9c1f948ad5d882ab git remote add block https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git git remote update block git checkout ed611876580275e085cba3bb9c1f948ad5d882ab vim +405 fs/nfs/read.c ^1da177e4c3f41 Linus Torvalds 2005-04-16 404 ed611876580275 Jens Axboe 2020-05-31 @405 int nfs_readpages(struct kiocb *kiocb, struct address_space *mapping, ^1da177e4c3f41 Linus Torvalds 2005-04-16 406 struct list_head *pages, unsigned nr_pages) ^1da177e4c3f41 Linus Torvalds 2005-04-16 407 { ed611876580275 Jens Axboe 2020-05-31 408 struct file *filp = kiocb->ki_filp; 8b09bee3083897 Trond Myklebust 2007-04-02 409 struct nfs_pageio_descriptor pgio; a7d42ddb309972 Weston Andros Adamson 2014-09-19 410 struct nfs_pgio_mirror *pgm; ^1da177e4c3f41 Linus Torvalds 2005-04-16 411 struct nfs_readdesc desc = { 8b09bee3083897 Trond Myklebust 2007-04-02 412 .pgio = &pgio, ^1da177e4c3f41 Linus Torvalds 2005-04-16 413 }; ^1da177e4c3f41 Linus Torvalds 2005-04-16 414 struct inode *inode = mapping->host; 8b09bee3083897 Trond Myklebust 2007-04-02 415 unsigned long npages; 5f004cf2aa8494 Trond Myklebust 2006-09-14 416 int ret = -ESTALE; ^1da177e4c3f41 Linus Torvalds 2005-04-16 417 1e8968c5b05823 Niels de Vos 2013-12-17 418 dprintk("NFS: nfs_readpages (%s/%Lu %d)\n", ^1da177e4c3f41 Linus Torvalds 2005-04-16 419 inode->i_sb->s_id, 1e8968c5b05823 Niels de Vos 2013-12-17 420 (unsigned long long)NFS_FILEID(inode), ^1da177e4c3f41 Linus Torvalds 2005-04-16 421 nr_pages); 91d5b47023b608 Chuck Lever 2006-03-20 422 nfs_inc_stats(inode, NFSIOS_VFSREADPAGES); ^1da177e4c3f41 Linus Torvalds 2005-04-16 423 5f004cf2aa8494 Trond Myklebust 2006-09-14 424 if (NFS_STALE(inode)) 5f004cf2aa8494 Trond Myklebust 2006-09-14 425 goto out; 5f004cf2aa8494 Trond Myklebust 2006-09-14 426 ^1da177e4c3f41 Linus Torvalds 2005-04-16 427 if (filp == NULL) { d530838bfa507d Trond Myklebust 2005-11-04 428 desc.ctx = nfs_find_open_context(inode, NULL, FMODE_READ); ^1da177e4c3f41 Linus Torvalds 2005-04-16 429 if (desc.ctx == NULL) ^1da177e4c3f41 Linus Torvalds 2005-04-16 430 return -EBADF; ^1da177e4c3f41 Linus Torvalds 2005-04-16 431 } else cd3758e37ddea6 Trond Myklebust 2007-08-10 432 desc.ctx = get_nfs_open_context(nfs_file_open_context(filp)); 9a9fc1c03315f1 David Howells 2009-04-03 433 9a9fc1c03315f1 David Howells 2009-04-03 434 /* attempt to read as many of the pages as possible from the cache 9a9fc1c03315f1 David Howells 2009-04-03 435 * - this returns -ENOBUFS immediately if the cookie is negative 9a9fc1c03315f1 David Howells 2009-04-03 436 */ 9a9fc1c03315f1 David Howells 2009-04-03 437 ret = nfs_readpages_from_fscache(desc.ctx, inode, mapping, 9a9fc1c03315f1 David Howells 2009-04-03 438 pages, &nr_pages); 9a9fc1c03315f1 David Howells 2009-04-03 439 if (ret == 0) 9a9fc1c03315f1 David Howells 2009-04-03 440 goto read_complete; /* all pages were read */ 9a9fc1c03315f1 David Howells 2009-04-03 441 fab5fc25d230ed Christoph Hellwig 2014-04-16 442 nfs_pageio_init_read(&pgio, inode, false, fab5fc25d230ed Christoph Hellwig 2014-04-16 443 &nfs_async_read_completion_ops); 8b09bee3083897 Trond Myklebust 2007-04-02 444 ^1da177e4c3f41 Linus Torvalds 2005-04-16 445 ret = read_cache_pages(mapping, pages, readpage_async_filler, &desc); 8b09bee3083897 Trond Myklebust 2007-04-02 446 nfs_pageio_complete(&pgio); a7d42ddb309972 Weston Andros Adamson 2014-09-19 447 a7d42ddb309972 Weston Andros Adamson 2014-09-19 448 /* It doesn't make sense to do mirrored reads! */ a7d42ddb309972 Weston Andros Adamson 2014-09-19 449 WARN_ON_ONCE(pgio.pg_mirror_count != 1); a7d42ddb309972 Weston Andros Adamson 2014-09-19 450 a7d42ddb309972 Weston Andros Adamson 2014-09-19 451 pgm = &pgio.pg_mirrors[0]; a7d42ddb309972 Weston Andros Adamson 2014-09-19 452 NFS_I(inode)->read_io += pgm->pg_bytes_written; 09cbfeaf1a5a67 Kirill A. Shutemov 2016-04-01 453 npages = (pgm->pg_bytes_written + PAGE_SIZE - 1) >> 09cbfeaf1a5a67 Kirill A. Shutemov 2016-04-01 454 PAGE_SHIFT; 8b09bee3083897 Trond Myklebust 2007-04-02 455 nfs_add_stats(inode, NFSIOS_READPAGES, npages); 9a9fc1c03315f1 David Howells 2009-04-03 456 read_complete: ^1da177e4c3f41 Linus Torvalds 2005-04-16 457 put_nfs_open_context(desc.ctx); 5f004cf2aa8494 Trond Myklebust 2006-09-14 458 out: ^1da177e4c3f41 Linus Torvalds 2005-04-16 459 return ret; ^1da177e4c3f41 Linus Torvalds 2005-04-16 460 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 461 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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