Blame - fs/xfs/xfs_bmap_util.h - SHIFTPHONES/mainline/linux

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Dave Chinner	0b61f8a	2018-06-05 19:42:14 -0700	[diff] [blame]	1	// SPDX-License-Identifier: GPL-2.0
Dave Chinner	6898811	2013-08-12 20:49:42 +1000	[diff] [blame]	2	/*
				3	* Copyright (c) 2000-2006 Silicon Graphics, Inc.
				4	* All Rights Reserved.
Dave Chinner	6898811	2013-08-12 20:49:42 +1000	[diff] [blame]	5	*/
				6	#ifndef __XFS_BMAP_UTIL_H__
				7	#define __XFS_BMAP_UTIL_H__
				8
				9	/* Kernel only BMAP related definitions and functions */
				10
				11	struct xfs_bmbt_irec;
Darrick J. Wong	310a75a	2016-08-03 11:18:10 +1000	[diff] [blame]	12	struct xfs_extent_free_item;
Dave Chinner	6898811	2013-08-12 20:49:42 +1000	[diff] [blame]	13	struct xfs_ifork;
				14	struct xfs_inode;
				15	struct xfs_mount;
				16	struct xfs_trans;
Dave Chinner	9799b43	2015-01-09 10:46:49 +1100	[diff] [blame]	17	struct xfs_bmalloca;
Dave Chinner	6898811	2013-08-12 20:49:42 +1000	[diff] [blame]	18
Dave Chinner	bb9c2e5	2017-10-09 11:37:22 -0700	[diff] [blame]	19	#ifdef CONFIG_XFS_RT
Dave Chinner	6898811	2013-08-12 20:49:42 +1000	[diff] [blame]	20	int xfs_bmap_rtalloc(struct xfs_bmalloca *ap);
Dave Chinner	bb9c2e5	2017-10-09 11:37:22 -0700	[diff] [blame]	21	#else /* !CONFIG_XFS_RT */
				22	/*
				23	* Attempts to allocate RT extents when RT is disable indicates corruption and
				24	* should trigger a shutdown.
				25	*/
				26	static inline int
				27	xfs_bmap_rtalloc(struct xfs_bmalloca *ap)
				28	{
				29	return -EFSCORRUPTED;
				30	}
				31	#endif /* CONFIG_XFS_RT */
				32
Dave Chinner	6898811	2013-08-12 20:49:42 +1000	[diff] [blame]	33	int xfs_bmap_punch_delalloc_range(struct xfs_inode *ip,
				34	xfs_fileoff_t start_fsb, xfs_fileoff_t length);
				35
Christoph Hellwig	232b5194	2017-10-17 14:16:19 -0700	[diff] [blame]	36	struct kgetbmap {
				37	__s64 bmv_offset; /* file offset of segment in blocks */
				38	__s64 bmv_block; /* starting block (64-bit daddr_t) */
				39	__s64 bmv_length; /* length of segment, blocks */
				40	__s32 bmv_oflags; /* output flags */
				41	};
Dave Chinner	6898811	2013-08-12 20:49:42 +1000	[diff] [blame]	42	int xfs_getbmap(struct xfs_inode ip, struct getbmapx bmv,
Christoph Hellwig	232b5194	2017-10-17 14:16:19 -0700	[diff] [blame]	43	struct kgetbmap *out);
Dave Chinner	6898811	2013-08-12 20:49:42 +1000	[diff] [blame]	44
				45	/* functions in xfs_bmap.c that are only needed by xfs_bmap_util.c */
Dave Chinner	6898811	2013-08-12 20:49:42 +1000	[diff] [blame]	46	int xfs_bmap_extsize_align(struct xfs_mount mp, struct xfs_bmbt_irec gotp,
				47	struct xfs_bmbt_irec *prevp, xfs_extlen_t extsz,
				48	int rt, int eof, int delay, int convert,
				49	xfs_fileoff_t offp, xfs_extlen_t lenp);
				50	void xfs_bmap_adjacent(struct xfs_bmalloca *ap);
				51	int xfs_bmap_last_extent(struct xfs_trans tp, struct xfs_inode ip,
				52	int whichfork, struct xfs_bmbt_irec *rec,
				53	int *is_empty);
				54
Dave Chinner	c24b5df	2013-08-12 20:49:45 +1000	[diff] [blame]	55	/* preallocation and hole punch interface */
Christoph Hellwig	83aee9e	2013-10-12 00:55:07 -0700	[diff] [blame]	56	int xfs_alloc_file_space(struct xfs_inode *ip, xfs_off_t offset,
				57	xfs_off_t len, int alloc_type);
				58	int xfs_free_file_space(struct xfs_inode *ip, xfs_off_t offset,
				59	xfs_off_t len);
Namjae Jeon	e1d8fb8	2014-02-24 10:58:19 +1100	[diff] [blame]	60	int xfs_collapse_file_space(struct xfs_inode *, xfs_off_t offset,
				61	xfs_off_t len);
Namjae Jeon	a904b1c	2015-03-25 15:08:56 +1100	[diff] [blame]	62	int xfs_insert_file_space(struct xfs_inode *, xfs_off_t offset,
				63	xfs_off_t len);
Dave Chinner	c24b5df	2013-08-12 20:49:45 +1000	[diff] [blame]	64
				65	/* EOF block manipulation functions */
				66	bool xfs_can_free_eofblocks(struct xfs_inode *ip, bool force);
Brian Foster	a36b926	2017-01-27 23:22:55 -0800	[diff] [blame]	67	int xfs_free_eofblocks(struct xfs_inode *ip);
Dave Chinner	c24b5df	2013-08-12 20:49:45 +1000	[diff] [blame]	68
Dave Chinner	a133d95	2013-08-12 20:49:48 +1000	[diff] [blame]	69	int xfs_swap_extents(struct xfs_inode ip, struct xfs_inode tip,
				70	struct xfs_swapext *sx);
				71
Dave Chinner	6898811	2013-08-12 20:49:42 +1000	[diff] [blame]	72	xfs_daddr_t xfs_fsb_to_db(struct xfs_inode *ip, xfs_fsblock_t fsb);
				73
Christoph Hellwig	e17a5c6	2017-08-29 15:44:14 -0700	[diff] [blame]	74	xfs_extnum_t xfs_bmap_count_leaves(struct xfs_ifork ifp, xfs_filblks_t count);
Darrick J. Wong	e7f5d5c	2017-06-16 11:00:12 -0700	[diff] [blame]	75	int xfs_bmap_count_blocks(struct xfs_trans tp, struct xfs_inode ip,
				76	int whichfork, xfs_extnum_t *nextents,
				77	xfs_filblks_t *count);
				78
Dave Chinner	2c30717	2018-11-19 13:31:10 -0800	[diff] [blame]	79	int xfs_flush_unmap_range(struct xfs_inode *ip, xfs_off_t offset,
				80	xfs_off_t len);
				81
Dave Chinner	6898811	2013-08-12 20:49:42 +1000	[diff] [blame]	82	#endif /* __XFS_BMAP_UTIL_H__ */