71ddabb94a
Use XFS_IS_REALTIME_INODE in more places, and #define it to 0 if CONFIG_XFS_RT is off. This should be safe because mount checks in xfs_rtmount_init: so if we get mounted w/o CONFIG_XFS_RT, no realtime inodes should be encountered after that. Defining XFS_IS_REALTIME_INODE to 0 saves a bit of stack space, presumeably gcc can optimize around the various "if (0)" type checks: xfs_alloc_file_space -8 xfs_bmap_adjacent -16 xfs_bmapi -8 xfs_bmap_rtalloc -16 xfs_bunmapi -28 xfs_free_file_space -64 xfs_imap +8 <-- ? hmm. xfs_iomap_write_direct -12 xfs_qm_dqusage_adjust -4 xfs_qm_vop_chown_reserve -4 SGI-PV: 971186 SGI-Modid: xfs-linux-melb:xfs-kern:30014a Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
89 lines
2.5 KiB
C
89 lines
2.5 KiB
C
/*
|
|
* Copyright (c) 2000-2006 Silicon Graphics, Inc.
|
|
* All Rights Reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it would be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write the Free Software Foundation,
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
#ifndef __XFS_RW_H__
|
|
#define __XFS_RW_H__
|
|
|
|
struct xfs_buf;
|
|
struct xfs_inode;
|
|
struct xfs_mount;
|
|
|
|
/*
|
|
* Convert the given file system block to a disk block.
|
|
* We have to treat it differently based on whether the
|
|
* file is a real time file or not, because the bmap code
|
|
* does.
|
|
*/
|
|
#define XFS_FSB_TO_DB(ip,fsb) xfs_fsb_to_db(ip,fsb)
|
|
static inline xfs_daddr_t
|
|
xfs_fsb_to_db(struct xfs_inode *ip, xfs_fsblock_t fsb)
|
|
{
|
|
return (XFS_IS_REALTIME_INODE(ip) ? \
|
|
(xfs_daddr_t)XFS_FSB_TO_BB((ip)->i_mount, (fsb)) : \
|
|
XFS_FSB_TO_DADDR((ip)->i_mount, (fsb)));
|
|
}
|
|
|
|
/*
|
|
* Flags for xfs_free_eofblocks
|
|
*/
|
|
#define XFS_FREE_EOF_LOCK (1<<0)
|
|
#define XFS_FREE_EOF_NOLOCK (1<<1)
|
|
|
|
|
|
/*
|
|
* helper function to extract extent size hint from inode
|
|
*/
|
|
STATIC_INLINE xfs_extlen_t
|
|
xfs_get_extsz_hint(
|
|
xfs_inode_t *ip)
|
|
{
|
|
xfs_extlen_t extsz;
|
|
|
|
if (unlikely(XFS_IS_REALTIME_INODE(ip))) {
|
|
extsz = (ip->i_d.di_flags & XFS_DIFLAG_EXTSIZE)
|
|
? ip->i_d.di_extsize
|
|
: ip->i_mount->m_sb.sb_rextsize;
|
|
ASSERT(extsz);
|
|
} else {
|
|
extsz = (ip->i_d.di_flags & XFS_DIFLAG_EXTSIZE)
|
|
? ip->i_d.di_extsize : 0;
|
|
}
|
|
return extsz;
|
|
}
|
|
|
|
/*
|
|
* Prototypes for functions in xfs_rw.c.
|
|
*/
|
|
extern int xfs_write_clear_setuid(struct xfs_inode *ip);
|
|
extern int xfs_write_sync_logforce(struct xfs_mount *mp, struct xfs_inode *ip);
|
|
extern int xfs_bwrite(struct xfs_mount *mp, struct xfs_buf *bp);
|
|
extern int xfs_bioerror(struct xfs_buf *bp);
|
|
extern int xfs_bioerror_relse(struct xfs_buf *bp);
|
|
extern int xfs_read_buf(struct xfs_mount *mp, xfs_buftarg_t *btp,
|
|
xfs_daddr_t blkno, int len, uint flags,
|
|
struct xfs_buf **bpp);
|
|
extern void xfs_ioerror_alert(char *func, struct xfs_mount *mp,
|
|
xfs_buf_t *bp, xfs_daddr_t blkno);
|
|
|
|
/*
|
|
* Prototypes for functions in xfs_vnodeops.c.
|
|
*/
|
|
extern int xfs_free_eofblocks(struct xfs_mount *mp, struct xfs_inode *ip,
|
|
int flags);
|
|
|
|
#endif /* __XFS_RW_H__ */
|