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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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743bb4650d
Moving the copy_from_user out of some of the ioctl helpers will make it easier for the compat ioctl switch to copy in the right struct, then just pass to the underlying helper. Also, move common access checks into the helpers themselves, and out of the native ioctl switch code, to reduce code duplication between native & compat ioctl callers. Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
/*
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* Copyright (c) 2000,2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef __XFS_DFRAG_H__
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#define __XFS_DFRAG_H__
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/*
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* Structure passed to xfs_swapext
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*/
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typedef struct xfs_swapext
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{
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__int64_t sx_version; /* version */
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__int64_t sx_fdtarget; /* fd of target file */
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__int64_t sx_fdtmp; /* fd of tmp file */
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xfs_off_t sx_offset; /* offset into file */
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xfs_off_t sx_length; /* leng from offset */
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char sx_pad[16]; /* pad space, unused */
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xfs_bstat_t sx_stat; /* stat of target b4 copy */
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} xfs_swapext_t;
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/*
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* Version flag
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*/
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#define XFS_SX_VERSION 0
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#ifdef __KERNEL__
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/*
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* Prototypes for visible xfs_dfrag.c routines.
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*/
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/*
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* Syscall interface for xfs_swapext
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*/
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int xfs_swapext(struct xfs_swapext *sx);
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int xfs_swap_extents(struct xfs_inode *ip, struct xfs_inode *tip,
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struct xfs_swapext *sxp);
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#endif /* __KERNEL__ */
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#endif /* __XFS_DFRAG_H__ */
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