48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
/*
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* Copyright (c) 2000-2006 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_RW_H__
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#define __XFS_RW_H__
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struct xfs_buf;
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struct xfs_inode;
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struct xfs_mount;
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/*
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* Convert the given file system block to a disk block.
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* We have to treat it differently based on whether the
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* file is a real time file or not, because the bmap code
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* does.
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*/
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static inline xfs_daddr_t
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xfs_fsb_to_db(struct xfs_inode *ip, xfs_fsblock_t fsb)
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{
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return (XFS_IS_REALTIME_INODE(ip) ? \
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(xfs_daddr_t)XFS_FSB_TO_BB((ip)->i_mount, (fsb)) : \
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XFS_FSB_TO_DADDR((ip)->i_mount, (fsb)));
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}
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/*
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* Prototypes for functions in xfs_rw.c.
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*/
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extern int xfs_read_buf(struct xfs_mount *mp, xfs_buftarg_t *btp,
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xfs_daddr_t blkno, int len, uint flags,
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struct xfs_buf **bpp);
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extern xfs_extlen_t xfs_get_extsz_hint(struct xfs_inode *ip);
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#endif /* __XFS_RW_H__ */
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