50 строки
1.7 KiB
C
50 строки
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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typedef enum {
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/* base extent manipulation calls */
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BMAPI_READ = (1 << 0), /* read extents */
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BMAPI_WRITE = (1 << 1), /* create extents */
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BMAPI_ALLOCATE = (1 << 2), /* delayed allocate to real extents */
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/* modifiers */
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BMAPI_IGNSTATE = (1 << 4), /* ignore unwritten state on read */
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BMAPI_DIRECT = (1 << 5), /* direct instead of buffered write */
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BMAPI_MMAP = (1 << 6), /* allocate for mmap write */
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BMAPI_TRYLOCK = (1 << 7), /* non-blocking request */
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} bmapi_flags_t;
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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_MMAP, "MMAP" }, \
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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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