[linux.git] / fs / minix / file.c

// SPDX-License-Identifier: GPL-2.0
/*
 *  linux/fs/minix/file.c
 *
 *  Copyright (C) 1991, 1992 Linus Torvalds
 *
 *  minix regular file handling primitives
 */

#include "minix.h"

/*
 * We have mostly NULLs here: the current defaults are OK for
 * the minix filesystem.
 */
const struct file_operations minix_file_operations = {
	.llseek		= generic_file_llseek,
	.read_iter	= generic_file_read_iter,
	.write_iter	= generic_file_write_iter,
	.mmap		= generic_file_mmap,
	.fsync		= generic_file_fsync,
	.splice_read	= filemap_splice_read,
};

static int minix_setattr(struct mnt_idmap *idmap,
			 struct dentry *dentry, struct iattr *attr)
{
	struct inode *inode = d_inode(dentry);
	int error;

	error = setattr_prepare(&nop_mnt_idmap, dentry, attr);
	if (error)
		return error;

	if ((attr->ia_valid & ATTR_SIZE) &&
	    attr->ia_size != i_size_read(inode)) {
		error = inode_newsize_ok(inode, attr->ia_size);
		if (error)
			return error;

		truncate_setsize(inode, attr->ia_size);
		minix_truncate(inode);
	}

	setattr_copy(&nop_mnt_idmap, inode, attr);
	mark_inode_dirty(inode);
	return 0;
}

const struct inode_operations minix_file_inode_operations = {
	.setattr	= minix_setattr,
	.getattr	= minix_getattr,
};
Commit	Line	Data
b2441318	1	// SPDX-License-Identifier: GPL-2.0
1da177e4 LT	2	/*
	3	* linux/fs/minix/file.c
	4	*
	5	* Copyright (C) 1991, 1992 Linus Torvalds
	6	*
	7	* minix regular file handling primitives
	8	*/
	9
1da177e4 LT	10	#include "minix.h"
	11
	12	/*
	13	* We have mostly NULLs here: the current defaults are OK for
	14	* the minix filesystem.
	15	*/
4b6f5d20	16	const struct file_operations minix_file_operations = {
1da177e4	17	.llseek = generic_file_llseek,
aad4f8bb	18	.read_iter = generic_file_read_iter,
8174202b	19	.write_iter = generic_file_write_iter,
1da177e4	20	.mmap = generic_file_mmap,
1b061d92	21	.fsync = generic_file_fsync,
2cb1e089	22	.splice_read = filemap_splice_read,
1da177e4 LT	23	};
1da177e4 LT	24
c1632a0f	25	static int minix_setattr(struct mnt_idmap *idmap,
549c7297	26	struct dentry dentry, struct iattr attr)
d39aae9e	27	{
2b0143b5	28	struct inode *inode = d_inode(dentry);
d39aae9e CH	29	int error;
d39aae9e CH	30
c1632a0f	31	error = setattr_prepare(&nop_mnt_idmap, dentry, attr);
d39aae9e CH	32	if (error)
d39aae9e CH	33	return error;
1025774c CH	34
	35	if ((attr->ia_valid & ATTR_SIZE) &&
	36	attr->ia_size != i_size_read(inode)) {
7fc7cd00	37	error = inode_newsize_ok(inode, attr->ia_size);
1025774c CH	38	if (error)
1025774c CH	39	return error;
7fc7cd00 MS	40
	41	truncate_setsize(inode, attr->ia_size);
	42	minix_truncate(inode);
1025774c CH	43	}
1025774c CH	44
c1632a0f	45	setattr_copy(&nop_mnt_idmap, inode, attr);
1025774c CH	46	mark_inode_dirty(inode);
1025774c CH	47	return 0;
d39aae9e CH	48	}
d39aae9e CH	49
92e1d5be	50	const struct inode_operations minix_file_inode_operations = {
d39aae9e	51	.setattr = minix_setattr,
1da177e4 LT	52	.getattr = minix_getattr,
1da177e4 LT	53	};