forked from luck/tmp_suning_uos_patched
68a9f5e700
Convert XFS to use the new iomap based multipage write path. This involves implementing the ->iomap_begin and ->iomap_end methods, and switching the buffered file write, page_mkwrite and xfs_iozero paths to the new iomap helpers. With this change __xfs_get_blocks will never be used for buffered writes, and the code handling them can be removed. Based on earlier code from Dave Chinner. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
40 lines
1.3 KiB
C
40 lines
1.3 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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#include <linux/iomap.h>
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struct xfs_inode;
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struct xfs_bmbt_irec;
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int xfs_iomap_write_direct(struct xfs_inode *, xfs_off_t, size_t,
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struct xfs_bmbt_irec *, int);
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int xfs_iomap_write_delay(struct xfs_inode *, xfs_off_t, size_t,
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struct xfs_bmbt_irec *);
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int xfs_iomap_write_allocate(struct xfs_inode *, xfs_off_t,
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struct xfs_bmbt_irec *);
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int xfs_iomap_write_unwritten(struct xfs_inode *, xfs_off_t, xfs_off_t);
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void xfs_bmbt_to_iomap(struct xfs_inode *, struct iomap *,
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struct xfs_bmbt_irec *);
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extern struct iomap_ops xfs_iomap_ops;
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#endif /* __XFS_IOMAP_H__*/
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