[linux-2.6-block.git] / fs / xfs / scrub / scrub.h

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Copyright (C) 2017-2023 Oracle.  All Rights Reserved.
 * Author: Darrick J. Wong <djwong@kernel.org>
 */
#ifndef __XFS_SCRUB_SCRUB_H__
#define __XFS_SCRUB_SCRUB_H__

struct xfs_scrub;

struct xchk_relax {
	unsigned long	next_resched;
	unsigned int	resched_nr;
	bool		interruptible;
};

/* Yield to the scheduler at most 10x per second. */
#define XCHK_RELAX_NEXT		(jiffies + (HZ / 10))

#define INIT_XCHK_RELAX	\
	(struct xchk_relax){ \
		.next_resched	= XCHK_RELAX_NEXT, \
		.resched_nr	= 0, \
		.interruptible	= true, \
	}

/*
 * Relax during a scrub operation and exit if there's a fatal signal pending.
 *
 * If preemption is disabled, we need to yield to the scheduler every now and
 * then so that we don't run afoul of the soft lockup watchdog or RCU stall
 * detector.  cond_resched calls are somewhat expensive (~5ns) so we want to
 * ratelimit this to 10x per second.  Amortize the cost of the other checks by
 * only doing it once every 100 calls.
 */
static inline int xchk_maybe_relax(struct xchk_relax *widget)
{
	/* Amortize the cost of scheduling and checking signals. */
	if (likely(++widget->resched_nr < 100))
		return 0;
	widget->resched_nr = 0;

	if (unlikely(widget->next_resched <= jiffies)) {
		cond_resched();
		widget->next_resched = XCHK_RELAX_NEXT;
	}

	if (widget->interruptible && fatal_signal_pending(current))
		return -EINTR;

	return 0;
}

/*
 * Standard flags for allocating memory within scrub.  NOFS context is
 * configured by the process allocation scope.  Scrub and repair must be able
 * to back out gracefully if there isn't enough memory.  Force-cast to avoid
 * complaints from static checkers.
 */
#define XCHK_GFP_FLAGS	((__force gfp_t)(GFP_KERNEL | __GFP_NOWARN | \
					 __GFP_RETRY_MAYFAIL))

/*
 * For opening files by handle for fsck operations, we don't trust the inumber
 * or the allocation state; therefore, perform an untrusted lookup.  We don't
 * want these inodes to pollute the cache, so mark them for immediate removal.
 */
#define XCHK_IGET_FLAGS	(XFS_IGET_UNTRUSTED | XFS_IGET_DONTCACHE)

/* Type info and names for the scrub types. */
enum xchk_type {
	ST_NONE = 1,	/* disabled */
	ST_PERAG,	/* per-AG metadata */
	ST_FS,		/* per-FS metadata */
	ST_INODE,	/* per-inode metadata */
};

struct xchk_meta_ops {
	/* Acquire whatever resources are needed for the operation. */
	int		(*setup)(struct xfs_scrub *sc);

	/* Examine metadata for errors. */
	int		(*scrub)(struct xfs_scrub *);

	/* Repair or optimize the metadata. */
	int		(*repair)(struct xfs_scrub *);

	/*
	 * Re-scrub the metadata we repaired, in case there's extra work that
	 * we need to do to check our repair work.  If this is NULL, we'll use
	 * the ->scrub function pointer, assuming that the regular scrub is
	 * sufficient.
	 */
	int		(*repair_eval)(struct xfs_scrub *sc);

	/* Decide if we even have this piece of metadata. */
	bool		(*has)(struct xfs_mount *);

	/* type describing required/allowed inputs */
	enum xchk_type	type;
};

/* Buffer pointers and btree cursors for an entire AG. */
struct xchk_ag {
	struct xfs_perag	*pag;

	/* AG btree roots */
	struct xfs_buf		*agf_bp;
	struct xfs_buf		*agi_bp;

	/* AG btrees */
	struct xfs_btree_cur	*bno_cur;
	struct xfs_btree_cur	*cnt_cur;
	struct xfs_btree_cur	*ino_cur;
	struct xfs_btree_cur	*fino_cur;
	struct xfs_btree_cur	*rmap_cur;
	struct xfs_btree_cur	*refc_cur;
};

struct xfs_scrub {
	/* General scrub state. */
	struct xfs_mount		*mp;
	struct xfs_scrub_metadata	*sm;
	const struct xchk_meta_ops	*ops;
	struct xfs_trans		*tp;

	/* File that scrub was called with. */
	struct file			*file;

	/*
	 * File that is undergoing the scrub operation.  This can differ from
	 * the file that scrub was called with if we're checking file-based fs
	 * metadata (e.g. rt bitmaps) or if we're doing a scrub-by-handle for
	 * something that can't be opened directly (e.g. symlinks).
	 */
	struct xfs_inode		*ip;

	/* Kernel memory buffer used by scrubbers; freed at teardown. */
	void				*buf;

	/*
	 * Clean up resources owned by whatever is in the buffer.  Cleanup can
	 * be deferred with this hook as a means for scrub functions to pass
	 * data to repair functions.  This function must not free the buffer
	 * itself.
	 */
	void				(*buf_cleanup)(void *buf);

	/* xfile used by the scrubbers; freed at teardown. */
	struct xfile			*xfile;

	/* buffer target for in-memory btrees; also freed at teardown. */
	struct xfs_buftarg		*xmbtp;

	/* Lock flags for @ip. */
	uint				ilock_flags;

	/* The orphanage, for stashing files that have lost their parent. */
	uint				orphanage_ilock_flags;
	struct xfs_inode		*orphanage;

	/* A temporary file on this filesystem, for staging new metadata. */
	struct xfs_inode		*tempip;
	uint				temp_ilock_flags;

	/* See the XCHK/XREP state flags below. */
	unsigned int			flags;

	/*
	 * The XFS_SICK_* flags that correspond to the metadata being scrubbed
	 * or repaired.  We will use this mask to update the in-core fs health
	 * status with whatever we find.
	 */
	unsigned int			sick_mask;

	/* next time we want to cond_resched() */
	struct xchk_relax		relax;

	/* State tracking for single-AG operations. */
	struct xchk_ag			sa;
};

/* XCHK state flags grow up from zero, XREP state flags grown down from 2^31 */
#define XCHK_TRY_HARDER		(1U << 0)  /* can't get resources, try again */
#define XCHK_HAVE_FREEZE_PROT	(1U << 1)  /* do we have freeze protection? */
#define XCHK_FSGATES_DRAIN	(1U << 2)  /* defer ops draining enabled */
#define XCHK_NEED_DRAIN		(1U << 3)  /* scrub needs to drain defer ops */
#define XCHK_FSGATES_QUOTA	(1U << 4)  /* quota live update enabled */
#define XCHK_FSGATES_DIRENTS	(1U << 5)  /* directory live update enabled */
#define XCHK_FSGATES_RMAP	(1U << 6)  /* rmapbt live update enabled */
#define XREP_FSGATES_EXCHANGE_RANGE (1U << 29) /* uses file content exchange */
#define XREP_RESET_PERAG_RESV	(1U << 30) /* must reset AG space reservation */
#define XREP_ALREADY_FIXED	(1U << 31) /* checking our repair work */

/*
 * The XCHK_FSGATES* flags reflect functionality in the main filesystem that
 * are only enabled for this particular online fsck.  When not in use, the
 * features are gated off via dynamic code patching, which is why the state
 * must be enabled during scrub setup and can only be torn down afterwards.
 */
#define XCHK_FSGATES_ALL	(XCHK_FSGATES_DRAIN | \
				 XCHK_FSGATES_QUOTA | \
				 XCHK_FSGATES_DIRENTS | \
				 XCHK_FSGATES_RMAP)

/*
 * The sole XREP_FSGATES* flag reflects a log intent item that is protected
 * by a log-incompat feature flag.  No code patching in use here.
 */
#define XREP_FSGATES_ALL	(XREP_FSGATES_EXCHANGE_RANGE)

struct xfs_scrub_subord {
	struct xfs_scrub	sc;
	struct xfs_scrub	*parent_sc;
	unsigned int		old_smtype;
	unsigned int		old_smflags;
};

struct xfs_scrub_subord *xchk_scrub_create_subord(struct xfs_scrub *sc,
		unsigned int subtype);
void xchk_scrub_free_subord(struct xfs_scrub_subord *sub);

/*
 * We /could/ terminate a scrub/repair operation early.  If we're not
 * in a good place to continue (fatal signal, etc.) then bail out.
 * Note that we're careful not to make any judgements about *error.
 */
static inline bool
xchk_should_terminate(
	struct xfs_scrub	*sc,
	int			*error)
{
	if (xchk_maybe_relax(&sc->relax)) {
		if (*error == 0)
			*error = -EINTR;
		return true;
	}
	return false;
}

/* Metadata scrubbers */
int xchk_tester(struct xfs_scrub *sc);
int xchk_superblock(struct xfs_scrub *sc);
int xchk_agf(struct xfs_scrub *sc);
int xchk_agfl(struct xfs_scrub *sc);
int xchk_agi(struct xfs_scrub *sc);
int xchk_allocbt(struct xfs_scrub *sc);
int xchk_iallocbt(struct xfs_scrub *sc);
int xchk_rmapbt(struct xfs_scrub *sc);
int xchk_refcountbt(struct xfs_scrub *sc);
int xchk_inode(struct xfs_scrub *sc);
int xchk_bmap_data(struct xfs_scrub *sc);
int xchk_bmap_attr(struct xfs_scrub *sc);
int xchk_bmap_cow(struct xfs_scrub *sc);
int xchk_directory(struct xfs_scrub *sc);
int xchk_xattr(struct xfs_scrub *sc);
int xchk_symlink(struct xfs_scrub *sc);
int xchk_parent(struct xfs_scrub *sc);
int xchk_dirtree(struct xfs_scrub *sc);
#ifdef CONFIG_XFS_RT
int xchk_rtbitmap(struct xfs_scrub *sc);
int xchk_rtsummary(struct xfs_scrub *sc);
#else
static inline int
xchk_rtbitmap(struct xfs_scrub *sc)
{
	return -ENOENT;
}
static inline int
xchk_rtsummary(struct xfs_scrub *sc)
{
	return -ENOENT;
}
#endif
#ifdef CONFIG_XFS_QUOTA
int xchk_quota(struct xfs_scrub *sc);
int xchk_quotacheck(struct xfs_scrub *sc);
#else
static inline int
xchk_quota(struct xfs_scrub *sc)
{
	return -ENOENT;
}
static inline int
xchk_quotacheck(struct xfs_scrub *sc)
{
	return -ENOENT;
}
#endif
int xchk_fscounters(struct xfs_scrub *sc);
int xchk_nlinks(struct xfs_scrub *sc);

/* cross-referencing helpers */
void xchk_xref_is_used_space(struct xfs_scrub *sc, xfs_agblock_t agbno,
		xfs_extlen_t len);
void xchk_xref_is_not_inode_chunk(struct xfs_scrub *sc, xfs_agblock_t agbno,
		xfs_extlen_t len);
void xchk_xref_is_inode_chunk(struct xfs_scrub *sc, xfs_agblock_t agbno,
		xfs_extlen_t len);
void xchk_xref_is_only_owned_by(struct xfs_scrub *sc, xfs_agblock_t agbno,
		xfs_extlen_t len, const struct xfs_owner_info *oinfo);
void xchk_xref_is_not_owned_by(struct xfs_scrub *sc, xfs_agblock_t agbno,
		xfs_extlen_t len, const struct xfs_owner_info *oinfo);
void xchk_xref_has_no_owner(struct xfs_scrub *sc, xfs_agblock_t agbno,
		xfs_extlen_t len);
void xchk_xref_is_cow_staging(struct xfs_scrub *sc, xfs_agblock_t bno,
		xfs_extlen_t len);
void xchk_xref_is_not_shared(struct xfs_scrub *sc, xfs_agblock_t bno,
		xfs_extlen_t len);
void xchk_xref_is_not_cow_staging(struct xfs_scrub *sc, xfs_agblock_t bno,
		xfs_extlen_t len);
#ifdef CONFIG_XFS_RT
void xchk_xref_is_used_rt_space(struct xfs_scrub *sc, xfs_rtblock_t rtbno,
		xfs_extlen_t len);
#else
# define xchk_xref_is_used_rt_space(sc, rtbno, len) do { } while (0)
#endif

#endif	/* __XFS_SCRUB_SCRUB_H__ */
Commit	Line	Data
739a2fe0	1	// SPDX-License-Identifier: GPL-2.0-or-later
36fd6e86	2	/*
ecc73f8a	3	* Copyright (C) 2017-2023 Oracle. All Rights Reserved.
739a2fe0	4	* Author: Darrick J. Wong <djwong@kernel.org>
36fd6e86 DW	5	*/
	6	#ifndef __XFS_SCRUB_SCRUB_H__
	7	#define __XFS_SCRUB_SCRUB_H__
	8
1d8a748a	9	struct xfs_scrub;
a5637186	10
271557de DW	11	struct xchk_relax {
	12	unsigned long next_resched;
	13	unsigned int resched_nr;
	14	bool interruptible;
	15	};
	16
	17	/* Yield to the scheduler at most 10x per second. */
	18	#define XCHK_RELAX_NEXT (jiffies + (HZ / 10))
	19
	20	#define INIT_XCHK_RELAX \
	21	(struct xchk_relax){ \
	22	.next_resched = XCHK_RELAX_NEXT, \
	23	.resched_nr = 0, \
	24	.interruptible = true, \
	25	}
	26
	27	/*
	28	* Relax during a scrub operation and exit if there's a fatal signal pending.
	29	*
	30	* If preemption is disabled, we need to yield to the scheduler every now and
	31	* then so that we don't run afoul of the soft lockup watchdog or RCU stall
	32	* detector. cond_resched calls are somewhat expensive (~5ns) so we want to
	33	* ratelimit this to 10x per second. Amortize the cost of the other checks by
	34	* only doing it once every 100 calls.
	35	*/
	36	static inline int xchk_maybe_relax(struct xchk_relax *widget)
	37	{
	38	/* Amortize the cost of scheduling and checking signals. */
	39	if (likely(++widget->resched_nr < 100))
	40	return 0;
	41	widget->resched_nr = 0;
	42
	43	if (unlikely(widget->next_resched <= jiffies)) {
	44	cond_resched();
	45	widget->next_resched = XCHK_RELAX_NEXT;
	46	}
	47
	48	if (widget->interruptible && fatal_signal_pending(current))
	49	return -EINTR;
	50
	51	return 0;
	52	}
	53
48ff4045 DW	54	/*
	55	* Standard flags for allocating memory within scrub. NOFS context is
	56	* configured by the process allocation scope. Scrub and repair must be able
	57	* to back out gracefully if there isn't enough memory. Force-cast to avoid
	58	* complaints from static checkers.
	59	*/
	60	#define XCHK_GFP_FLAGS ((__force gfp_t)(GFP_KERNEL \| __GFP_NOWARN \| \
	61	__GFP_RETRY_MAYFAIL))
	62
b27ce0da DW	63	/*
	64	* For opening files by handle for fsck operations, we don't trust the inumber
	65	* or the allocation state; therefore, perform an untrusted lookup. We don't
	66	* want these inodes to pollute the cache, so mark them for immediate removal.
	67	*/
	68	#define XCHK_IGET_FLAGS (XFS_IGET_UNTRUSTED \| XFS_IGET_DONTCACHE)
	69
8e630837	70	/* Type info and names for the scrub types. */
c517b3aa	71	enum xchk_type {
8e630837 ES	72	ST_NONE = 1, /* disabled */
	73	ST_PERAG, /* per-AG metadata */
	74	ST_FS, /* per-FS metadata */
	75	ST_INODE, /* per-inode metadata */
	76	};
	77
c517b3aa	78	struct xchk_meta_ops {
a5637186	79	/* Acquire whatever resources are needed for the operation. */
026f57eb	80	int (setup)(struct xfs_scrub sc);
a5637186 DW	81
a5637186 DW	82	/* Examine metadata for errors. */
1d8a748a	83	int (scrub)(struct xfs_scrub );
a5637186	84
84d42ea6	85	/* Repair or optimize the metadata. */
1d8a748a	86	int (repair)(struct xfs_scrub );
84d42ea6	87
4bdfd7d1 DW	88	/*
	89	* Re-scrub the metadata we repaired, in case there's extra work that
	90	* we need to do to check our repair work. If this is NULL, we'll use
	91	* the ->scrub function pointer, assuming that the regular scrub is
	92	* sufficient.
	93	*/
	94	int (repair_eval)(struct xfs_scrub sc);
	95
a5637186	96	/* Decide if we even have this piece of metadata. */
55fafb31	97	bool (has)(struct xfs_mount );
8e630837 ES	98
8e630837 ES	99	/* type describing required/allowed inputs */
c517b3aa	100	enum xchk_type type;
a5637186 DW	101	};
a5637186 DW	102
b6c1beb9	103	/* Buffer pointers and btree cursors for an entire AG. */
c517b3aa	104	struct xchk_ag {
032d91f9	105	struct xfs_perag *pag;
b6c1beb9 DW	106
b6c1beb9 DW	107	/* AG btree roots */
032d91f9	108	struct xfs_buf *agf_bp;
032d91f9	109	struct xfs_buf *agi_bp;
b6c1beb9 DW	110
b6c1beb9 DW	111	/* AG btrees */
032d91f9 DW	112	struct xfs_btree_cur *bno_cur;
	113	struct xfs_btree_cur *cnt_cur;
	114	struct xfs_btree_cur *ino_cur;
	115	struct xfs_btree_cur *fino_cur;
	116	struct xfs_btree_cur *rmap_cur;
	117	struct xfs_btree_cur *refc_cur;
b6c1beb9 DW	118	};
b6c1beb9 DW	119
1d8a748a	120	struct xfs_scrub {
a5637186 DW	121	/* General scrub state. */
	122	struct xfs_mount *mp;
	123	struct xfs_scrub_metadata *sm;
c517b3aa	124	const struct xchk_meta_ops *ops;
a5637186	125	struct xfs_trans *tp;
71bddbcc DW	126
	127	/* File that scrub was called with. */
	128	struct file *file;
	129
	130	/*
	131	* File that is undergoing the scrub operation. This can differ from
	132	* the file that scrub was called with if we're checking file-based fs
	133	* metadata (e.g. rt bitmaps) or if we're doing a scrub-by-handle for
	134	* something that can't be opened directly (e.g. symlinks).
	135	*/
a5637186	136	struct xfs_inode *ip;
71bddbcc	137
91781ff5	138	/* Kernel memory buffer used by scrubbers; freed at teardown. */
eec0482e	139	void *buf;
91781ff5 DW	140
	141	/*
	142	* Clean up resources owned by whatever is in the buffer. Cleanup can
	143	* be deferred with this hook as a means for scrub functions to pass
	144	* data to repair functions. This function must not free the buffer
	145	* itself.
	146	*/
	147	void (buf_cleanup)(void buf);
	148
526aab5f DW	149	/* xfile used by the scrubbers; freed at teardown. */
	150	struct xfile *xfile;
	151
a095686a DW	152	/* buffer target for in-memory btrees; also freed at teardown. */
	153	struct xfs_buftarg *xmbtp;
	154
526aab5f	155	/* Lock flags for @ip. */
80e4e126	156	uint ilock_flags;
f8c2a225	157
1e58a8cc DW	158	/* The orphanage, for stashing files that have lost their parent. */
	159	uint orphanage_ilock_flags;
	160	struct xfs_inode *orphanage;
	161
84c14ee3 DW	162	/* A temporary file on this filesystem, for staging new metadata. */
	163	struct xfs_inode *tempip;
	164	uint temp_ilock_flags;
	165
160b5a78	166	/* See the XCHK/XREP state flags below. */
f8c2a225	167	unsigned int flags;
b6c1beb9	168
4860a05d DW	169	/*
	170	* The XFS_SICK_* flags that correspond to the metadata being scrubbed
	171	* or repaired. We will use this mask to update the in-core fs health
	172	* status with whatever we find.
	173	*/
	174	unsigned int sick_mask;
	175
271557de DW	176	/* next time we want to cond_resched() */
	177	struct xchk_relax relax;
	178
b6c1beb9	179	/* State tracking for single-AG operations. */
032d91f9	180	struct xchk_ag sa;
a5637186 DW	181	};
a5637186 DW	182
160b5a78	183	/* XCHK state flags grow up from zero, XREP state flags grown down from 2^31 */
4320f346	184	#define XCHK_TRY_HARDER (1U << 0) /* can't get resources, try again */
ce85a1e0	185	#define XCHK_HAVE_FREEZE_PROT (1U << 1) /* do we have freeze protection? */
4320f346 GU	186	#define XCHK_FSGATES_DRAIN (1U << 2) /* defer ops draining enabled */
4320f346 GU	187	#define XCHK_NEED_DRAIN (1U << 3) /* scrub needs to drain defer ops */
20049187	188	#define XCHK_FSGATES_QUOTA (1U << 4) /* quota live update enabled */
86a1746e	189	#define XCHK_FSGATES_DIRENTS (1U << 5) /* directory live update enabled */
7e1b84b2	190	#define XCHK_FSGATES_RMAP (1U << 6) /* rmapbt live update enabled */
56596d8b	191	#define XREP_FSGATES_EXCHANGE_RANGE (1U << 29) /* uses file content exchange */
dbfbf3bd	192	#define XREP_RESET_PERAG_RESV (1U << 30) /* must reset AG space reservation */
4320f346	193	#define XREP_ALREADY_FIXED (1U << 31) /* checking our repair work */
f8c2a225	194
466c525d DW	195	/*
	196	* The XCHK_FSGATES* flags reflect functionality in the main filesystem that
	197	* are only enabled for this particular online fsck. When not in use, the
	198	* features are gated off via dynamic code patching, which is why the state
	199	* must be enabled during scrub setup and can only be torn down afterwards.
	200	*/
20049187	201	#define XCHK_FSGATES_ALL (XCHK_FSGATES_DRAIN \| \
86a1746e	202	XCHK_FSGATES_QUOTA \| \
7e1b84b2 DW	203	XCHK_FSGATES_DIRENTS \| \
7e1b84b2 DW	204	XCHK_FSGATES_RMAP)
466c525d	205
56596d8b DW	206	/*
	207	* The sole XREP_FSGATES* flag reflects a log intent item that is protected
	208	* by a log-incompat feature flag. No code patching in use here.
	209	*/
	210	#define XREP_FSGATES_ALL (XREP_FSGATES_EXCHANGE_RANGE)
	211
1a5f6e08 DW	212	struct xfs_scrub_subord {
	213	struct xfs_scrub sc;
	214	struct xfs_scrub *parent_sc;
	215	unsigned int old_smtype;
	216	unsigned int old_smflags;
	217	};
	218
	219	struct xfs_scrub_subord xchk_scrub_create_subord(struct xfs_scrub sc,
	220	unsigned int subtype);
	221	void xchk_scrub_free_subord(struct xfs_scrub_subord *sub);
	222
271557de DW	223	/*
	224	* We /could/ terminate a scrub/repair operation early. If we're not
	225	* in a good place to continue (fatal signal, etc.) then bail out.
	226	* Note that we're careful not to make any judgements about *error.
	227	*/
	228	static inline bool
	229	xchk_should_terminate(
	230	struct xfs_scrub *sc,
	231	int *error)
	232	{
	233	if (xchk_maybe_relax(&sc->relax)) {
	234	if (*error == 0)
	235	*error = -EINTR;
	236	return true;
	237	}
	238	return false;
	239	}
	240
36fd6e86	241	/* Metadata scrubbers */
1d8a748a DW	242	int xchk_tester(struct xfs_scrub *sc);
	243	int xchk_superblock(struct xfs_scrub *sc);
	244	int xchk_agf(struct xfs_scrub *sc);
	245	int xchk_agfl(struct xfs_scrub *sc);
	246	int xchk_agi(struct xfs_scrub *sc);
8bd0bf57 DW	247	int xchk_allocbt(struct xfs_scrub *sc);
8bd0bf57 DW	248	int xchk_iallocbt(struct xfs_scrub *sc);
1d8a748a DW	249	int xchk_rmapbt(struct xfs_scrub *sc);
	250	int xchk_refcountbt(struct xfs_scrub *sc);
	251	int xchk_inode(struct xfs_scrub *sc);
	252	int xchk_bmap_data(struct xfs_scrub *sc);
	253	int xchk_bmap_attr(struct xfs_scrub *sc);
	254	int xchk_bmap_cow(struct xfs_scrub *sc);
	255	int xchk_directory(struct xfs_scrub *sc);
	256	int xchk_xattr(struct xfs_scrub *sc);
	257	int xchk_symlink(struct xfs_scrub *sc);
	258	int xchk_parent(struct xfs_scrub *sc);
928b721a	259	int xchk_dirtree(struct xfs_scrub *sc);
29b0767b	260	#ifdef CONFIG_XFS_RT
1d8a748a DW	261	int xchk_rtbitmap(struct xfs_scrub *sc);
1d8a748a DW	262	int xchk_rtsummary(struct xfs_scrub *sc);
29b0767b DW	263	#else
29b0767b DW	264	static inline int
1d8a748a	265	xchk_rtbitmap(struct xfs_scrub *sc)
29b0767b DW	266	{
	267	return -ENOENT;
	268	}
	269	static inline int
1d8a748a	270	xchk_rtsummary(struct xfs_scrub *sc)
29b0767b DW	271	{
	272	return -ENOENT;
	273	}
	274	#endif
c2fc338c	275	#ifdef CONFIG_XFS_QUOTA
1d8a748a	276	int xchk_quota(struct xfs_scrub *sc);
48dd9117	277	int xchk_quotacheck(struct xfs_scrub *sc);
c2fc338c DW	278	#else
c2fc338c DW	279	static inline int
1d8a748a	280	xchk_quota(struct xfs_scrub *sc)
c2fc338c DW	281	{
	282	return -ENOENT;
	283	}
48dd9117 DW	284	static inline int
	285	xchk_quotacheck(struct xfs_scrub *sc)
	286	{
	287	return -ENOENT;
	288	}
c2fc338c	289	#endif
75efa57d	290	int xchk_fscounters(struct xfs_scrub *sc);
f1184081	291	int xchk_nlinks(struct xfs_scrub *sc);
36fd6e86	292
52dc4b44	293	/* cross-referencing helpers */
032d91f9 DW	294	void xchk_xref_is_used_space(struct xfs_scrub *sc, xfs_agblock_t agbno,
	295	xfs_extlen_t len);
	296	void xchk_xref_is_not_inode_chunk(struct xfs_scrub *sc, xfs_agblock_t agbno,
	297	xfs_extlen_t len);
	298	void xchk_xref_is_inode_chunk(struct xfs_scrub *sc, xfs_agblock_t agbno,
	299	xfs_extlen_t len);
69115f77	300	void xchk_xref_is_only_owned_by(struct xfs_scrub *sc, xfs_agblock_t agbno,
66e3237e	301	xfs_extlen_t len, const struct xfs_owner_info *oinfo);
032d91f9	302	void xchk_xref_is_not_owned_by(struct xfs_scrub *sc, xfs_agblock_t agbno,
66e3237e	303	xfs_extlen_t len, const struct xfs_owner_info *oinfo);
032d91f9 DW	304	void xchk_xref_has_no_owner(struct xfs_scrub *sc, xfs_agblock_t agbno,
	305	xfs_extlen_t len);
	306	void xchk_xref_is_cow_staging(struct xfs_scrub *sc, xfs_agblock_t bno,
	307	xfs_extlen_t len);
	308	void xchk_xref_is_not_shared(struct xfs_scrub *sc, xfs_agblock_t bno,
	309	xfs_extlen_t len);
7ac14fa2 DW	310	void xchk_xref_is_not_cow_staging(struct xfs_scrub *sc, xfs_agblock_t bno,
7ac14fa2 DW	311	xfs_extlen_t len);
46d9bfb5	312	#ifdef CONFIG_XFS_RT
032d91f9 DW	313	void xchk_xref_is_used_rt_space(struct xfs_scrub *sc, xfs_rtblock_t rtbno,
032d91f9 DW	314	xfs_extlen_t len);
46d9bfb5	315	#else
c517b3aa	316	# define xchk_xref_is_used_rt_space(sc, rtbno, len) do { } while (0)
46d9bfb5	317	#endif
52dc4b44	318
36fd6e86	319	#endif /* __XFS_SCRUB_SCRUB_H__ */