On Tue, Nov 10, 2015 at 04:53:30PM -0500, Anna Schumaker wrote: > out: > fdput(f_in); > out1: > fdput(f_out); The fdput()s are in the wrong order. fdget(f_in) is first at the beginning, so fdput(f_in) needs to be last at the end. > /* this could be relaxed once a method supports cross-fs copies */ > if (inode_in->i_sb != inode_out->i_sb) > return -EXDEV; This allows the same superblock but different mounts --- is that intentional? The commit message says otherwise: it says the vfs entry point requires the same superblock and mount. Was there a decision made on FMODE_PREAD and FMODE_PWRITE? To me it seems logical that the if the user explicitly specifies an offset, then the corresponding mode should be checked. That would check whether the file is seekable or not, I believe. Note that e.g. sys_sendfile() does the same thing. -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
