tree: https://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git work.open3 head: c94be0673577f7373cf67bba317cef2db9094530 commit: 335331bef622bd232800d50c85b54056fa02d808 [37/44] create_pipe_files(): switch the first allocation to alloc_file_pseudo() config: i386-tinyconfig (attached as .config) compiler: gcc-7 (Debian 7.3.0-16) 7.3.0 reproduce: git checkout 335331bef622bd232800d50c85b54056fa02d808 # save the attached .config to linux build tree make ARCH=i386 Note: the vfs/work.open3 HEAD c94be0673577f7373cf67bba317cef2db9094530 builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): fs/pipe.c: In function 'create_pipe_files': >> fs/pipe.c:764:23: error: 'path' undeclared (first use in this function) res[0] = alloc_file(&path, O_RDONLY | (flags & O_NONBLOCK), ^~~~ fs/pipe.c:764:23: note: each undeclared identifier is reported only once for each function it appears in vim +/path +764 fs/pipe.c ^1da177e Linus Torvalds 2005-04-16 744 e4fad8e5 Al Viro 2012-07-21 745 int create_pipe_files(struct file **res, int flags) ^1da177e Linus Torvalds 2005-04-16 746 { e4fad8e5 Al Viro 2012-07-21 747 struct inode *inode = get_pipe_inode(); d6cbd281 Andi Kleen 2006-09-30 748 struct file *f; ^1da177e Linus Torvalds 2005-04-16 749 ^1da177e Linus Torvalds 2005-04-16 750 if (!inode) e4fad8e5 Al Viro 2012-07-21 751 return -ENFILE; ^1da177e Linus Torvalds 2005-04-16 752 335331be Al Viro 2018-06-09 753 f = alloc_file_pseudo(inode, pipe_mnt, "", 335331be Al Viro 2018-06-09 754 O_WRONLY | (flags & (O_NONBLOCK | O_DIRECT)), 12ec508a Al Viro 2018-07-11 755 &pipefifo_fops); e9bb1f9b Eric Biggers 2015-10-17 756 if (IS_ERR(f)) { 335331be Al Viro 2018-06-09 757 free_pipe_info(inode->i_pipe); 335331be Al Viro 2018-06-09 758 iput(inode); 335331be Al Viro 2018-06-09 759 return PTR_ERR(f); e9bb1f9b Eric Biggers 2015-10-17 760 } 341b446b Ingo Molnar 2006-04-11 761 de32ec4c Al Viro 2013-03-21 762 f->private_data = inode->i_pipe; ^1da177e Linus Torvalds 2005-04-16 763 12ec508a Al Viro 2018-07-11 @764 res[0] = alloc_file(&path, O_RDONLY | (flags & O_NONBLOCK), 12ec508a Al Viro 2018-07-11 765 &pipefifo_fops); e9bb1f9b Eric Biggers 2015-10-17 766 if (IS_ERR(res[0])) { b10a4a9f Al Viro 2018-07-09 767 put_pipe_info(inode, inode->i_pipe); b10a4a9f Al Viro 2018-07-09 768 fput(f); b10a4a9f Al Viro 2018-07-09 769 return PTR_ERR(res[0]); e9bb1f9b Eric Biggers 2015-10-17 770 } e4fad8e5 Al Viro 2012-07-21 771 335331be Al Viro 2018-06-09 772 path_get(&f->f_path); de32ec4c Al Viro 2013-03-21 773 res[0]->private_data = inode->i_pipe; e4fad8e5 Al Viro 2012-07-21 774 res[1] = f; e4fad8e5 Al Viro 2012-07-21 775 return 0; d6cbd281 Andi Kleen 2006-09-30 776 } d6cbd281 Andi Kleen 2006-09-30 777 :::::: The code at line 764 was first introduced by commit :::::: 12ec508a2586dcb99a9ec383b1b98057acb9fc02 alloc_file(): switch to passing O_... flags instead of FMODE_... mode :::::: TO: Al Viro <viro@xxxxxxxxxxxxxxxxxx> :::::: CC: Al Viro <viro@xxxxxxxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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