libxfs: move header files

Move all the header files that are shared with userspace into
libxfs. This is done as one big chunk simpy to get it done quickly.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

1 files changed, 0 insertions, 234 deletions

diff --git a/fs/xfs/xfs_alloc.h b/fs/xfs/xfs_alloc.h
deleted file mode 100644
index feacb061bab7..000000000000
--- a/fs/xfs/xfs_alloc.h
+++ /dev/null
@@ -1,234 +0,0 @@
-/*
- * Copyright (c) 2000-2002,2005 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_ALLOC_H__
-#define	__XFS_ALLOC_H__
-
-struct xfs_buf;
-struct xfs_btree_cur;
-struct xfs_mount;
-struct xfs_perag;
-struct xfs_trans;
-
-extern struct workqueue_struct *xfs_alloc_wq;
-
-/*
- * Freespace allocation types.  Argument to xfs_alloc_[v]extent.
- */
-#define XFS_ALLOCTYPE_ANY_AG	0x01	/* allocate anywhere, use rotor */
-#define XFS_ALLOCTYPE_FIRST_AG	0x02	/* ... start at ag 0 */
-#define XFS_ALLOCTYPE_START_AG	0x04	/* anywhere, start in this a.g. */
-#define XFS_ALLOCTYPE_THIS_AG	0x08	/* anywhere in this a.g. */
-#define XFS_ALLOCTYPE_START_BNO	0x10	/* near this block else anywhere */
-#define XFS_ALLOCTYPE_NEAR_BNO	0x20	/* in this a.g. and near this block */
-#define XFS_ALLOCTYPE_THIS_BNO	0x40	/* at exactly this block */
-
-/* this should become an enum again when the tracing code is fixed */
-typedef unsigned int xfs_alloctype_t;
-
-#define XFS_ALLOC_TYPES \
-	{ XFS_ALLOCTYPE_ANY_AG,		"ANY_AG" }, \
-	{ XFS_ALLOCTYPE_FIRST_AG,	"FIRST_AG" }, \
-	{ XFS_ALLOCTYPE_START_AG,	"START_AG" }, \
-	{ XFS_ALLOCTYPE_THIS_AG,	"THIS_AG" }, \
-	{ XFS_ALLOCTYPE_START_BNO,	"START_BNO" }, \
-	{ XFS_ALLOCTYPE_NEAR_BNO,	"NEAR_BNO" }, \
-	{ XFS_ALLOCTYPE_THIS_BNO,	"THIS_BNO" }
-
-/*
- * Flags for xfs_alloc_fix_freelist.
- */
-#define	XFS_ALLOC_FLAG_TRYLOCK	0x00000001  /* use trylock for buffer locking */
-#define	XFS_ALLOC_FLAG_FREEING	0x00000002  /* indicate caller is freeing extents*/
-
-/*
- * In order to avoid ENOSPC-related deadlock caused by
- * out-of-order locking of AGF buffer (PV 947395), we place
- * constraints on the relationship among actual allocations for
- * data blocks, freelist blocks, and potential file data bmap
- * btree blocks. However, these restrictions may result in no
- * actual space allocated for a delayed extent, for example, a data
- * block in a certain AG is allocated but there is no additional
- * block for the additional bmap btree block due to a split of the
- * bmap btree of the file. The result of this may lead to an
- * infinite loop in xfssyncd when the file gets flushed to disk and
- * all delayed extents need to be actually allocated. To get around
- * this, we explicitly set aside a few blocks which will not be
- * reserved in delayed allocation. Considering the minimum number of
- * needed freelist blocks is 4 fsbs _per AG_, a potential split of file's bmap
- * btree requires 1 fsb, so we set the number of set-aside blocks
- * to 4 + 4*agcount.
- */
-#define XFS_ALLOC_SET_ASIDE(mp)  (4 + ((mp)->m_sb.sb_agcount * 4))
-
-/*
- * When deciding how much space to allocate out of an AG, we limit the
- * allocation maximum size to the size the AG. However, we cannot use all the
- * blocks in the AG - some are permanently used by metadata. These
- * blocks are generally:
- *	- the AG superblock, AGF, AGI and AGFL
- *	- the AGF (bno and cnt) and AGI btree root blocks
- *	- 4 blocks on the AGFL according to XFS_ALLOC_SET_ASIDE() limits
- *
- * The AG headers are sector sized, so the amount of space they take up is
- * dependent on filesystem geometry. The others are all single blocks.
- */
-#define XFS_ALLOC_AG_MAX_USABLE(mp)	\
-	((mp)->m_sb.sb_agblocks - XFS_BB_TO_FSB(mp, XFS_FSS_TO_BB(mp, 4)) - 7)
-
-
-/*
- * Argument structure for xfs_alloc routines.
- * This is turned into a structure to avoid having 20 arguments passed
- * down several levels of the stack.
- */
-typedef struct xfs_alloc_arg {
-	struct xfs_trans *tp;		/* transaction pointer */
-	struct xfs_mount *mp;		/* file system mount point */
-	struct xfs_buf	*agbp;		/* buffer for a.g. freelist header */
-	struct xfs_perag *pag;		/* per-ag struct for this agno */
-	xfs_fsblock_t	fsbno;		/* file system block number */
-	xfs_agnumber_t	agno;		/* allocation group number */
-	xfs_agblock_t	agbno;		/* allocation group-relative block # */
-	xfs_extlen_t	minlen;		/* minimum size of extent */
-	xfs_extlen_t	maxlen;		/* maximum size of extent */
-	xfs_extlen_t	mod;		/* mod value for extent size */
-	xfs_extlen_t	prod;		/* prod value for extent size */
-	xfs_extlen_t	minleft;	/* min blocks must be left after us */
-	xfs_extlen_t	total;		/* total blocks needed in xaction */
-	xfs_extlen_t	alignment;	/* align answer to multiple of this */
-	xfs_extlen_t	minalignslop;	/* slop for minlen+alignment calcs */
-	xfs_extlen_t	len;		/* output: actual size of extent */
-	xfs_alloctype_t	type;		/* allocation type XFS_ALLOCTYPE_... */
-	xfs_alloctype_t	otype;		/* original allocation type */
-	char		wasdel;		/* set if allocation was prev delayed */
-	char		wasfromfl;	/* set if allocation is from freelist */
-	char		isfl;		/* set if is freelist blocks - !acctg */
-	char		userdata;	/* set if this is user data */
-	xfs_fsblock_t	firstblock;	/* io first block allocated */
-} xfs_alloc_arg_t;
-
-/*
- * Defines for userdata
- */
-#define XFS_ALLOC_USERDATA		1	/* allocation is for user data*/
-#define XFS_ALLOC_INITIAL_USER_DATA	2	/* special case start of file */
-
-/*
- * Find the length of the longest extent in an AG.
- */
-xfs_extlen_t
-xfs_alloc_longest_free_extent(struct xfs_mount *mp,
-		struct xfs_perag *pag);
-
-/*
- * Compute and fill in value of m_ag_maxlevels.
- */
-void
-xfs_alloc_compute_maxlevels(
-	struct xfs_mount	*mp);	/* file system mount structure */
-
-/*
- * Get a block from the freelist.
- * Returns with the buffer for the block gotten.
- */
-int				/* error */
-xfs_alloc_get_freelist(
-	struct xfs_trans *tp,	/* transaction pointer */
-	struct xfs_buf	*agbp,	/* buffer containing the agf structure */
-	xfs_agblock_t	*bnop,	/* block address retrieved from freelist */
-	int		btreeblk); /* destination is a AGF btree */
-
-/*
- * Log the given fields from the agf structure.
- */
-void
-xfs_alloc_log_agf(
-	struct xfs_trans *tp,	/* transaction pointer */
-	struct xfs_buf	*bp,	/* buffer for a.g. freelist header */
-	int		fields);/* mask of fields to be logged (XFS_AGF_...) */
-
-/*
- * Interface for inode allocation to force the pag data to be initialized.
- */
-int				/* error */
-xfs_alloc_pagf_init(
-	struct xfs_mount *mp,	/* file system mount structure */
-	struct xfs_trans *tp,	/* transaction pointer */
-	xfs_agnumber_t	agno,	/* allocation group number */
-	int		flags);	/* XFS_ALLOC_FLAGS_... */
-
-/*
- * Put the block on the freelist for the allocation group.
- */
-int				/* error */
-xfs_alloc_put_freelist(
-	struct xfs_trans *tp,	/* transaction pointer */
-	struct xfs_buf	*agbp,	/* buffer for a.g. freelist header */
-	struct xfs_buf	*agflbp,/* buffer for a.g. free block array */
-	xfs_agblock_t	bno,	/* block being freed */
-	int		btreeblk); /* owner was a AGF btree */
-
-/*
- * Read in the allocation group header (free/alloc section).
- */
-int					/* error  */
-xfs_alloc_read_agf(
-	struct xfs_mount *mp,		/* mount point structure */
-	struct xfs_trans *tp,		/* transaction pointer */
-	xfs_agnumber_t	agno,		/* allocation group number */
-	int		flags,		/* XFS_ALLOC_FLAG_... */
-	struct xfs_buf	**bpp);		/* buffer for the ag freelist header */
-
-/*
- * Allocate an extent (variable-size).
- */
-int				/* error */
-xfs_alloc_vextent(
-	xfs_alloc_arg_t	*args);	/* allocation argument structure */
-
-/*
- * Free an extent.
- */
-int				/* error */
-xfs_free_extent(
-	struct xfs_trans *tp,	/* transaction pointer */
-	xfs_fsblock_t	bno,	/* starting block number of extent */
-	xfs_extlen_t	len);	/* length of extent */
-
-int					/* error */
-xfs_alloc_lookup_le(
-	struct xfs_btree_cur	*cur,	/* btree cursor */
-	xfs_agblock_t		bno,	/* starting block of extent */
-	xfs_extlen_t		len,	/* length of extent */
-	int			*stat);	/* success/failure */
-
-int				/* error */
-xfs_alloc_lookup_ge(
-	struct xfs_btree_cur	*cur,	/* btree cursor */
-	xfs_agblock_t		bno,	/* starting block of extent */
-	xfs_extlen_t		len,	/* length of extent */
-	int			*stat);	/* success/failure */
-
-int					/* error */
-xfs_alloc_get_rec(
-	struct xfs_btree_cur	*cur,	/* btree cursor */
-	xfs_agblock_t		*bno,	/* output: starting block of extent */
-	xfs_extlen_t		*len,	/* output: length of extent */
-	int			*stat);	/* output: success/failure */
-
-#endif	/* __XFS_ALLOC_H__ */