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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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53ac39fdb3
Lift the common code to copy the cursor from and to user space into xfs_ioc_attr_list. Note that this means we copy in twice now as the cursor is in the middle of the conaining structure, but we never touch the memory for the original copy. Doing so keeps the cursor handling isolated in the common helper. 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>
68 lines
1.4 KiB
C
68 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2008 Silicon Graphics, Inc.
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* All Rights Reserved.
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*/
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#ifndef __XFS_IOCTL_H__
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#define __XFS_IOCTL_H__
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struct attrlist_cursor_kern;
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struct xfs_bstat;
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struct xfs_ibulk;
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struct xfs_inogrp;
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extern int
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xfs_ioc_space(
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struct file *filp,
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xfs_flock64_t *bf);
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int
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xfs_ioc_swapext(
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xfs_swapext_t *sxp);
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extern int
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xfs_find_handle(
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unsigned int cmd,
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xfs_fsop_handlereq_t *hreq);
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extern int
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xfs_open_by_handle(
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struct file *parfilp,
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xfs_fsop_handlereq_t *hreq);
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extern int
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xfs_readlink_by_handle(
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struct file *parfilp,
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xfs_fsop_handlereq_t *hreq);
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int xfs_ioc_attrmulti_one(struct file *parfilp, struct inode *inode,
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uint32_t opcode, void __user *uname, void __user *value,
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uint32_t *len, uint32_t flags);
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int xfs_ioc_attr_list(struct xfs_inode *dp, void __user *ubuf, int bufsize,
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int flags, struct xfs_attrlist_cursor __user *ucursor);
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extern struct dentry *
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xfs_handle_to_dentry(
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struct file *parfilp,
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void __user *uhandle,
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u32 hlen);
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extern long
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xfs_file_ioctl(
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struct file *filp,
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unsigned int cmd,
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unsigned long p);
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extern long
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xfs_file_compat_ioctl(
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struct file *file,
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unsigned int cmd,
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unsigned long arg);
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int xfs_fsbulkstat_one_fmt(struct xfs_ibulk *breq,
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const struct xfs_bulkstat *bstat);
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int xfs_fsinumbers_fmt(struct xfs_ibulk *breq, const struct xfs_inumbers *igrp);
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#endif
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