linux-stable/fs/xfs/xfs_ioctl.h
Christoph Hellwig d0ce643911 xfs: factor out a helper for a single XFS_IOC_ATTRMULTI_BY_HANDLE op
Add a new helper to handle a single attr multi ioctl operation that
can be shared between the native and compat ioctl implementation.

There is a slight change in behaviour in that we don't break out of the
loop when copying in the attribute name fails.  The previous behaviour
was rather inconsistent here as it continued for any other kind of
error, and that we don't clear the flags in the structure returned
to userspace, a behavior only introduced as a bug fix in the last
merge window.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Chandan Rajendra <chandanrlinux@gmail.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-03-02 20:55:52 -08:00

63 lines
1.2 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2008 Silicon Graphics, Inc.
* All Rights Reserved.
*/
#ifndef __XFS_IOCTL_H__
#define __XFS_IOCTL_H__
extern int
xfs_ioc_space(
struct file *filp,
xfs_flock64_t *bf);
int
xfs_ioc_swapext(
xfs_swapext_t *sxp);
extern int
xfs_find_handle(
unsigned int cmd,
xfs_fsop_handlereq_t *hreq);
extern int
xfs_open_by_handle(
struct file *parfilp,
xfs_fsop_handlereq_t *hreq);
extern int
xfs_readlink_by_handle(
struct file *parfilp,
xfs_fsop_handlereq_t *hreq);
int xfs_ioc_attrmulti_one(struct file *parfilp, struct inode *inode,
uint32_t opcode, void __user *uname, void __user *value,
uint32_t *len, uint32_t flags);
extern struct dentry *
xfs_handle_to_dentry(
struct file *parfilp,
void __user *uhandle,
u32 hlen);
extern long
xfs_file_ioctl(
struct file *filp,
unsigned int cmd,
unsigned long p);
extern long
xfs_file_compat_ioctl(
struct file *file,
unsigned int cmd,
unsigned long arg);
struct xfs_ibulk;
struct xfs_bstat;
struct xfs_inogrp;
int xfs_fsbulkstat_one_fmt(struct xfs_ibulk *breq,
const struct xfs_bulkstat *bstat);
int xfs_fsinumbers_fmt(struct xfs_ibulk *breq, const struct xfs_inumbers *igrp);
#endif