diff options
Diffstat (limited to 'fs/romfs/mmap-nommu.c')
| -rw-r--r-- | fs/romfs/mmap-nommu.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/fs/romfs/mmap-nommu.c b/fs/romfs/mmap-nommu.c index 1118a0dc6b45..4b77c6dc4418 100644 --- a/fs/romfs/mmap-nommu.c +++ b/fs/romfs/mmap-nommu.c @@ -1,12 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* NOMMU mmap support for RomFS on MTD devices * * Copyright © 2007 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #include <linux/mm.h> @@ -65,9 +61,9 @@ static unsigned long romfs_get_unmapped_area(struct file *file, * permit a R/O mapping to be made directly through onto an MTD device if * possible */ -static int romfs_mmap(struct file *file, struct vm_area_struct *vma) +static int romfs_mmap_prepare(struct vm_area_desc *desc) { - return vma->vm_flags & (VM_SHARED | VM_MAYSHARE) ? 0 : -ENOSYS; + return is_nommu_shared_mapping(desc->vm_flags) ? 0 : -ENOSYS; } static unsigned romfs_mmap_capabilities(struct file *file) @@ -82,8 +78,8 @@ static unsigned romfs_mmap_capabilities(struct file *file) const struct file_operations romfs_ro_fops = { .llseek = generic_file_llseek, .read_iter = generic_file_read_iter, - .splice_read = generic_file_splice_read, - .mmap = romfs_mmap, + .splice_read = filemap_splice_read, + .mmap_prepare = romfs_mmap_prepare, .get_unmapped_area = romfs_get_unmapped_area, .mmap_capabilities = romfs_mmap_capabilities, }; |