mirror of https://gitee.com/openkylin/linux.git
48 lines
1.7 KiB
C
48 lines
1.7 KiB
C
/*
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* Copyright (c) 2003-2005 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_IOMAP_H__
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#define __XFS_IOMAP_H__
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/* base extent manipulation calls */
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#define BMAPI_READ (1 << 0) /* read extents */
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#define BMAPI_WRITE (1 << 1) /* create extents */
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#define BMAPI_ALLOCATE (1 << 2) /* delayed allocate to real extents */
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/* modifiers */
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#define BMAPI_IGNSTATE (1 << 4) /* ignore unwritten state on read */
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#define BMAPI_DIRECT (1 << 5) /* direct instead of buffered write */
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#define BMAPI_MMA (1 << 6) /* allocate for mmap write */
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#define BMAPI_TRYLOCK (1 << 7) /* non-blocking request */
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#define BMAPI_FLAGS \
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{ BMAPI_READ, "READ" }, \
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{ BMAPI_WRITE, "WRITE" }, \
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{ BMAPI_ALLOCATE, "ALLOCATE" }, \
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{ BMAPI_IGNSTATE, "IGNSTATE" }, \
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{ BMAPI_DIRECT, "DIRECT" }, \
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{ BMAPI_TRYLOCK, "TRYLOCK" }
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struct xfs_inode;
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struct xfs_bmbt_irec;
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extern int xfs_iomap(struct xfs_inode *, xfs_off_t, ssize_t, int,
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struct xfs_bmbt_irec *, int *, int *);
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extern int xfs_iomap_write_unwritten(struct xfs_inode *, xfs_off_t, size_t);
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#endif /* __XFS_IOMAP_H__*/
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