/* file-mmu.c: ramfs MMU-based file operations * * Resizable simple ram filesystem for Linux. * * Copyright (C) 2000 Linus Torvalds. * 2000 Transmeta Corp. * * Usage limits added by David Gibson, Linuxcare Australia. * This file is released under the GPL. */ /* * NOTE! This filesystem is probably most useful * not as a real filesystem, but as an example of * how virtual filesystems can be written. * * It doesn't get much simpler than this. Consider * that this file implements the full semantics of * a POSIX-compliant read-write filesystem. * * Note in particular how the filesystem does not * need to implement any data structures of its own * to keep track of the virtual data: using the VFS * caches is sufficient. */ #include #include #include #include #include "internal.h" static unsigned long ramfs_mmu_get_unmapped_area(struct file *file, unsigned long addr, unsigned long len, unsigned long pgoff, unsigned long flags) { return current->mm->get_unmapped_area(file, addr, len, pgoff, flags); } const struct file_operations ramfs_file_operations = { .read_iter = generic_file_read_iter, .write_iter = generic_file_write_iter, .mmap = generic_file_mmap, .fsync = noop_fsync, .splice_read = generic_file_splice_read, .splice_write = iter_file_splice_write, .llseek = generic_file_llseek, .get_unmapped_area = ramfs_mmu_get_unmapped_area, }; const struct inode_operations ramfs_file_inode_operations = { .setattr = simple_setattr, .getattr = simple_getattr, }; able>
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authorCihangir Akturk <cakturk@gmail.com>2016-12-17 19:42:17 +0200
committerJonathan Corbet <corbet@lwn.net>2016-12-27 13:08:42 -0700
commit36f671be1db1b17d3d4ab0c8b47f81ccb1efcb75 (patch)
treed79b8821d94660c65279378b04474e23f2e01b22 /tools/virtio/ringtest/Makefile
parent66115335fbb411365c23349b2fbe7e041eabbaf2 (diff)
Documentation/unaligned-memory-access.txt: fix incorrect comparison operator
In the actual implementation ether_addr_equal function tests for equality to 0 when returning. It seems in commit 0d74c4 it is somehow overlooked to change this operator to reflect the actual function. Signed-off-by: Cihangir Akturk <cakturk@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'tools/virtio/ringtest/Makefile')