[linux-block.git] / fs / xfs / xfs_inode.h

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
 * All Rights Reserved.
 */
#ifndef	__XFS_INODE_H__
#define	__XFS_INODE_H__

#include "xfs_inode_buf.h"
#include "xfs_inode_fork.h"

/*
 * Kernel only inode definitions
 */
struct xfs_dinode;
struct xfs_inode;
struct xfs_buf;
struct xfs_bmbt_irec;
struct xfs_inode_log_item;
struct xfs_mount;
struct xfs_trans;
struct xfs_dquot;

typedef struct xfs_inode {
	/* Inode linking and identification information. */
	struct xfs_mount	*i_mount;	/* fs mount struct ptr */
	struct xfs_dquot	*i_udquot;	/* user dquot */
	struct xfs_dquot	*i_gdquot;	/* group dquot */
	struct xfs_dquot	*i_pdquot;	/* project dquot */

	/* Inode location stuff */
	xfs_ino_t		i_ino;		/* inode number (agno/agino)*/
	struct xfs_imap		i_imap;		/* location for xfs_imap() */

	/* Extent information. */
	struct xfs_ifork	*i_cowfp;	/* copy on write extents */
	struct xfs_ifork	i_df;		/* data fork */
	struct xfs_ifork	i_af;		/* attribute fork */

	/* Transaction and locking information. */
	struct xfs_inode_log_item *i_itemp;	/* logging information */
	mrlock_t		i_lock;		/* inode lock */
	atomic_t		i_pincount;	/* inode pin count */
	struct llist_node	i_gclist;	/* deferred inactivation list */

	/*
	 * Bitsets of inode metadata that have been checked and/or are sick.
	 * Callers must hold i_flags_lock before accessing this field.
	 */
	uint16_t		i_checked;
	uint16_t		i_sick;

	spinlock_t		i_flags_lock;	/* inode i_flags lock */
	/* Miscellaneous state. */
	unsigned long		i_flags;	/* see defined flags below */
	uint64_t		i_delayed_blks;	/* count of delay alloc blks */
	xfs_fsize_t		i_disk_size;	/* number of bytes in file */
	xfs_rfsblock_t		i_nblocks;	/* # of direct & btree blocks */
	prid_t			i_projid;	/* owner's project id */
	xfs_extlen_t		i_extsize;	/* basic/minimum extent size */
	/* cowextsize is only used for v3 inodes, flushiter for v1/2 */
	union {
		xfs_extlen_t	i_cowextsize;	/* basic cow extent size */
		uint16_t	i_flushiter;	/* incremented on flush */
	};
	uint8_t			i_forkoff;	/* attr fork offset >> 3 */
	uint16_t		i_diflags;	/* XFS_DIFLAG_... */
	uint64_t		i_diflags2;	/* XFS_DIFLAG2_... */
	struct timespec64	i_crtime;	/* time created */

	/* VFS inode */
	struct inode		i_vnode;	/* embedded VFS inode */

	/* pending io completions */
	spinlock_t		i_ioend_lock;
	struct work_struct	i_ioend_work;
	struct list_head	i_ioend_list;
} xfs_inode_t;

static inline struct xfs_ifork *
xfs_ifork_ptr(
	struct xfs_inode	*ip,
	int			whichfork)
{
	switch (whichfork) {
	case XFS_DATA_FORK:
		return &ip->i_df;
	case XFS_ATTR_FORK:
		if (!XFS_IFORK_Q(ip))
			return NULL;
		return &ip->i_af;
	case XFS_COW_FORK:
		return ip->i_cowfp;
	default:
		ASSERT(0);
		return NULL;
	}
}

/* Convert from vfs inode to xfs inode */
static inline struct xfs_inode *XFS_I(struct inode *inode)
{
	return container_of(inode, struct xfs_inode, i_vnode);
}

/* convert from xfs inode to vfs inode */
static inline struct inode *VFS_I(struct xfs_inode *ip)
{
	return &ip->i_vnode;
}

/*
 * For regular files we only update the on-disk filesize when actually
 * writing data back to disk.  Until then only the copy in the VFS inode
 * is uptodate.
 */
static inline xfs_fsize_t XFS_ISIZE(struct xfs_inode *ip)
{
	if (S_ISREG(VFS_I(ip)->i_mode))
		return i_size_read(VFS_I(ip));
	return ip->i_disk_size;
}

/*
 * If this I/O goes past the on-disk inode size update it unless it would
 * be past the current in-core inode size.
 */
static inline xfs_fsize_t
xfs_new_eof(struct xfs_inode *ip, xfs_fsize_t new_size)
{
	xfs_fsize_t i_size = i_size_read(VFS_I(ip));

	if (new_size > i_size || new_size < 0)
		new_size = i_size;
	return new_size > ip->i_disk_size ? new_size : 0;
}

/*
 * i_flags helper functions
 */
static inline void
__xfs_iflags_set(xfs_inode_t *ip, unsigned short flags)
{
	ip->i_flags |= flags;
}

static inline void
xfs_iflags_set(xfs_inode_t *ip, unsigned short flags)
{
	spin_lock(&ip->i_flags_lock);
	__xfs_iflags_set(ip, flags);
	spin_unlock(&ip->i_flags_lock);
}

static inline void
xfs_iflags_clear(xfs_inode_t *ip, unsigned short flags)
{
	spin_lock(&ip->i_flags_lock);
	ip->i_flags &= ~flags;
	spin_unlock(&ip->i_flags_lock);
}

static inline int
__xfs_iflags_test(xfs_inode_t *ip, unsigned short flags)
{
	return (ip->i_flags & flags);
}

static inline int
xfs_iflags_test(xfs_inode_t *ip, unsigned short flags)
{
	int ret;
	spin_lock(&ip->i_flags_lock);
	ret = __xfs_iflags_test(ip, flags);
	spin_unlock(&ip->i_flags_lock);
	return ret;
}

static inline int
xfs_iflags_test_and_clear(xfs_inode_t *ip, unsigned short flags)
{
	int ret;

	spin_lock(&ip->i_flags_lock);
	ret = ip->i_flags & flags;
	if (ret)
		ip->i_flags &= ~flags;
	spin_unlock(&ip->i_flags_lock);
	return ret;
}

static inline int
xfs_iflags_test_and_set(xfs_inode_t *ip, unsigned short flags)
{
	int ret;

	spin_lock(&ip->i_flags_lock);
	ret = ip->i_flags & flags;
	if (!ret)
		ip->i_flags |= flags;
	spin_unlock(&ip->i_flags_lock);
	return ret;
}

static inline prid_t
xfs_get_initial_prid(struct xfs_inode *dp)
{
	if (dp->i_diflags & XFS_DIFLAG_PROJINHERIT)
		return dp->i_projid;

	return XFS_PROJID_DEFAULT;
}

static inline bool xfs_is_reflink_inode(struct xfs_inode *ip)
{
	return ip->i_diflags2 & XFS_DIFLAG2_REFLINK;
}

static inline bool xfs_is_metadata_inode(struct xfs_inode *ip)
{
	struct xfs_mount	*mp = ip->i_mount;

	return ip == mp->m_rbmip || ip == mp->m_rsumip ||
		xfs_is_quota_inode(&mp->m_sb, ip->i_ino);
}

/*
 * Check if an inode has any data in the COW fork.  This might be often false
 * even for inodes with the reflink flag when there is no pending COW operation.
 */
static inline bool xfs_inode_has_cow_data(struct xfs_inode *ip)
{
	return ip->i_cowfp && ip->i_cowfp->if_bytes;
}

static inline bool xfs_inode_has_bigtime(struct xfs_inode *ip)
{
	return ip->i_diflags2 & XFS_DIFLAG2_BIGTIME;
}

static inline bool xfs_inode_has_large_extent_counts(struct xfs_inode *ip)
{
	return ip->i_diflags2 & XFS_DIFLAG2_NREXT64;
}

/*
 * Return the buftarg used for data allocations on a given inode.
 */
#define xfs_inode_buftarg(ip) \
	(XFS_IS_REALTIME_INODE(ip) ? \
		(ip)->i_mount->m_rtdev_targp : (ip)->i_mount->m_ddev_targp)

/*
 * In-core inode flags.
 */
#define XFS_IRECLAIM		(1 << 0) /* started reclaiming this inode */
#define XFS_ISTALE		(1 << 1) /* inode has been staled */
#define XFS_IRECLAIMABLE	(1 << 2) /* inode can be reclaimed */
#define XFS_INEW		(1 << 3) /* inode has just been allocated */
#define XFS_IPRESERVE_DM_FIELDS	(1 << 4) /* has legacy DMAPI fields set */
#define XFS_ITRUNCATED		(1 << 5) /* truncated down so flush-on-close */
#define XFS_IDIRTY_RELEASE	(1 << 6) /* dirty release already seen */
#define XFS_IFLUSHING		(1 << 7) /* inode is being flushed */
#define __XFS_IPINNED_BIT	8	 /* wakeup key for zero pin count */
#define XFS_IPINNED		(1 << __XFS_IPINNED_BIT)
#define XFS_IEOFBLOCKS		(1 << 9) /* has the preallocblocks tag set */
#define XFS_NEED_INACTIVE	(1 << 10) /* see XFS_INACTIVATING below */
/*
 * If this unlinked inode is in the middle of recovery, don't let drop_inode
 * truncate and free the inode.  This can happen if we iget the inode during
 * log recovery to replay a bmap operation on the inode.
 */
#define XFS_IRECOVERY		(1 << 11)
#define XFS_ICOWBLOCKS		(1 << 12)/* has the cowblocks tag set */

/*
 * If we need to update on-disk metadata before this IRECLAIMABLE inode can be
 * freed, then NEED_INACTIVE will be set.  Once we start the updates, the
 * INACTIVATING bit will be set to keep iget away from this inode.  After the
 * inactivation completes, both flags will be cleared and the inode is a
 * plain old IRECLAIMABLE inode.
 */
#define XFS_INACTIVATING	(1 << 13)

/* All inode state flags related to inode reclaim. */
#define XFS_ALL_IRECLAIM_FLAGS	(XFS_IRECLAIMABLE | \
				 XFS_IRECLAIM | \
				 XFS_NEED_INACTIVE | \
				 XFS_INACTIVATING)

/*
 * Per-lifetime flags need to be reset when re-using a reclaimable inode during
 * inode lookup. This prevents unintended behaviour on the new inode from
 * ocurring.
 */
#define XFS_IRECLAIM_RESET_FLAGS	\
	(XFS_IRECLAIMABLE | XFS_IRECLAIM | \
	 XFS_IDIRTY_RELEASE | XFS_ITRUNCATED | XFS_NEED_INACTIVE | \
	 XFS_INACTIVATING)

/*
 * Flags for inode locking.
 * Bit ranges:	1<<1  - 1<<16-1 -- iolock/ilock modes (bitfield)
 *		1<<16 - 1<<32-1 -- lockdep annotation (integers)
 */
#define	XFS_IOLOCK_EXCL		(1u << 0)
#define	XFS_IOLOCK_SHARED	(1u << 1)
#define	XFS_ILOCK_EXCL		(1u << 2)
#define	XFS_ILOCK_SHARED	(1u << 3)
#define	XFS_MMAPLOCK_EXCL	(1u << 4)
#define	XFS_MMAPLOCK_SHARED	(1u << 5)

#define XFS_LOCK_MASK		(XFS_IOLOCK_EXCL | XFS_IOLOCK_SHARED \
				| XFS_ILOCK_EXCL | XFS_ILOCK_SHARED \
				| XFS_MMAPLOCK_EXCL | XFS_MMAPLOCK_SHARED)

#define XFS_LOCK_FLAGS \
	{ XFS_IOLOCK_EXCL,	"IOLOCK_EXCL" }, \
	{ XFS_IOLOCK_SHARED,	"IOLOCK_SHARED" }, \
	{ XFS_ILOCK_EXCL,	"ILOCK_EXCL" }, \
	{ XFS_ILOCK_SHARED,	"ILOCK_SHARED" }, \
	{ XFS_MMAPLOCK_EXCL,	"MMAPLOCK_EXCL" }, \
	{ XFS_MMAPLOCK_SHARED,	"MMAPLOCK_SHARED" }


/*
 * Flags for lockdep annotations.
 *
 * XFS_LOCK_PARENT - for directory operations that require locking a
 * parent directory inode and a child entry inode. IOLOCK requires nesting,
 * MMAPLOCK does not support this class, ILOCK requires a single subclass
 * to differentiate parent from child.
 *
 * XFS_LOCK_RTBITMAP/XFS_LOCK_RTSUM - the realtime device bitmap and summary
 * inodes do not participate in the normal lock order, and thus have their
 * own subclasses.
 *
 * XFS_LOCK_INUMORDER - for locking several inodes at the some time
 * with xfs_lock_inodes().  This flag is used as the starting subclass
 * and each subsequent lock acquired will increment the subclass by one.
 * However, MAX_LOCKDEP_SUBCLASSES == 8, which means we are greatly
 * limited to the subclasses we can represent via nesting. We need at least
 * 5 inodes nest depth for the ILOCK through rename, and we also have to support
 * XFS_ILOCK_PARENT, which gives 6 subclasses. Then we have XFS_ILOCK_RTBITMAP
 * and XFS_ILOCK_RTSUM, which are another 2 unique subclasses, so that's all
 * 8 subclasses supported by lockdep.
 *
 * This also means we have to number the sub-classes in the lowest bits of
 * the mask we keep, and we have to ensure we never exceed 3 bits of lockdep
 * mask and we can't use bit-masking to build the subclasses. What a mess.
 *
 * Bit layout:
 *
 * Bit		Lock Region
 * 16-19	XFS_IOLOCK_SHIFT dependencies
 * 20-23	XFS_MMAPLOCK_SHIFT dependencies
 * 24-31	XFS_ILOCK_SHIFT dependencies
 *
 * IOLOCK values
 *
 * 0-3		subclass value
 * 4-7		unused
 *
 * MMAPLOCK values
 *
 * 0-3		subclass value
 * 4-7		unused
 *
 * ILOCK values
 * 0-4		subclass values
 * 5		PARENT subclass (not nestable)
 * 6		RTBITMAP subclass (not nestable)
 * 7		RTSUM subclass (not nestable)
 * 
 */
#define XFS_IOLOCK_SHIFT		16
#define XFS_IOLOCK_MAX_SUBCLASS		3
#define XFS_IOLOCK_DEP_MASK		0x000f0000u

#define XFS_MMAPLOCK_SHIFT		20
#define XFS_MMAPLOCK_NUMORDER		0
#define XFS_MMAPLOCK_MAX_SUBCLASS	3
#define XFS_MMAPLOCK_DEP_MASK		0x00f00000u

#define XFS_ILOCK_SHIFT			24
#define XFS_ILOCK_PARENT_VAL		5u
#define XFS_ILOCK_MAX_SUBCLASS		(XFS_ILOCK_PARENT_VAL - 1)
#define XFS_ILOCK_RTBITMAP_VAL		6u
#define XFS_ILOCK_RTSUM_VAL		7u
#define XFS_ILOCK_DEP_MASK		0xff000000u
#define	XFS_ILOCK_PARENT		(XFS_ILOCK_PARENT_VAL << XFS_ILOCK_SHIFT)
#define	XFS_ILOCK_RTBITMAP		(XFS_ILOCK_RTBITMAP_VAL << XFS_ILOCK_SHIFT)
#define	XFS_ILOCK_RTSUM			(XFS_ILOCK_RTSUM_VAL << XFS_ILOCK_SHIFT)

#define XFS_LOCK_SUBCLASS_MASK	(XFS_IOLOCK_DEP_MASK | \
				 XFS_MMAPLOCK_DEP_MASK | \
				 XFS_ILOCK_DEP_MASK)

#define XFS_IOLOCK_DEP(flags)	(((flags) & XFS_IOLOCK_DEP_MASK) \
					>> XFS_IOLOCK_SHIFT)
#define XFS_MMAPLOCK_DEP(flags)	(((flags) & XFS_MMAPLOCK_DEP_MASK) \
					>> XFS_MMAPLOCK_SHIFT)
#define XFS_ILOCK_DEP(flags)	(((flags) & XFS_ILOCK_DEP_MASK) \
					>> XFS_ILOCK_SHIFT)

/*
 * Layouts are broken in the BREAK_WRITE case to ensure that
 * layout-holders do not collide with local writes. Additionally,
 * layouts are broken in the BREAK_UNMAP case to make sure the
 * layout-holder has a consistent view of the file's extent map. While
 * BREAK_WRITE breaks can be satisfied by recalling FL_LAYOUT leases,
 * BREAK_UNMAP breaks additionally require waiting for busy dax-pages to
 * go idle.
 */
enum layout_break_reason {
        BREAK_WRITE,
        BREAK_UNMAP,
};

/*
 * For multiple groups support: if S_ISGID bit is set in the parent
 * directory, group of new file is set to that of the parent, and
 * new subdirectory gets S_ISGID bit from parent.
 */
#define XFS_INHERIT_GID(pip)	\
	(xfs_has_grpid((pip)->i_mount) || (VFS_I(pip)->i_mode & S_ISGID))

int		xfs_release(struct xfs_inode *ip);
void		xfs_inactive(struct xfs_inode *ip);
int		xfs_lookup(struct xfs_inode *dp, const struct xfs_name *name,
			   struct xfs_inode **ipp, struct xfs_name *ci_name);
int		xfs_create(struct user_namespace *mnt_userns,
			   struct xfs_inode *dp, struct xfs_name *name,
			   umode_t mode, dev_t rdev, bool need_xattr,
			   struct xfs_inode **ipp);
int		xfs_create_tmpfile(struct user_namespace *mnt_userns,
			   struct xfs_inode *dp, umode_t mode,
			   struct xfs_inode **ipp);
int		xfs_remove(struct xfs_inode *dp, struct xfs_name *name,
			   struct xfs_inode *ip);
int		xfs_link(struct xfs_inode *tdp, struct xfs_inode *sip,
			 struct xfs_name *target_name);
int		xfs_rename(struct user_namespace *mnt_userns,
			   struct xfs_inode *src_dp, struct xfs_name *src_name,
			   struct xfs_inode *src_ip, struct xfs_inode *target_dp,
			   struct xfs_name *target_name,
			   struct xfs_inode *target_ip, unsigned int flags);

void		xfs_ilock(xfs_inode_t *, uint);
int		xfs_ilock_nowait(xfs_inode_t *, uint);
void		xfs_iunlock(xfs_inode_t *, uint);
void		xfs_ilock_demote(xfs_inode_t *, uint);
bool		xfs_isilocked(struct xfs_inode *, uint);
uint		xfs_ilock_data_map_shared(struct xfs_inode *);
uint		xfs_ilock_attr_map_shared(struct xfs_inode *);

uint		xfs_ip2xflags(struct xfs_inode *);
int		xfs_ifree(struct xfs_trans *, struct xfs_inode *);
int		xfs_itruncate_extents_flags(struct xfs_trans **,
				struct xfs_inode *, int, xfs_fsize_t, int);
void		xfs_iext_realloc(xfs_inode_t *, int, int);

int		xfs_log_force_inode(struct xfs_inode *ip);
void		xfs_iunpin_wait(xfs_inode_t *);
#define xfs_ipincount(ip)	((unsigned int) atomic_read(&ip->i_pincount))

int		xfs_iflush_cluster(struct xfs_buf *);
void		xfs_lock_two_inodes(struct xfs_inode *ip0, uint ip0_mode,
				struct xfs_inode *ip1, uint ip1_mode);

xfs_extlen_t	xfs_get_extsz_hint(struct xfs_inode *ip);
xfs_extlen_t	xfs_get_cowextsz_hint(struct xfs_inode *ip);

int xfs_init_new_inode(struct user_namespace *mnt_userns, struct xfs_trans *tp,
		struct xfs_inode *pip, xfs_ino_t ino, umode_t mode,
		xfs_nlink_t nlink, dev_t rdev, prid_t prid, bool init_xattrs,
		struct xfs_inode **ipp);

static inline int
xfs_itruncate_extents(
	struct xfs_trans	**tpp,
	struct xfs_inode	*ip,
	int			whichfork,
	xfs_fsize_t		new_size)
{
	return xfs_itruncate_extents_flags(tpp, ip, whichfork, new_size, 0);
}

/* from xfs_file.c */
int	xfs_break_layouts(struct inode *inode, uint *iolock,
		enum layout_break_reason reason);

/* from xfs_iops.c */
extern void xfs_setup_inode(struct xfs_inode *ip);
extern void xfs_setup_iops(struct xfs_inode *ip);
extern void xfs_diflags_to_iflags(struct xfs_inode *ip, bool init);

/*
 * When setting up a newly allocated inode, we need to call
 * xfs_finish_inode_setup() once the inode is fully instantiated at
 * the VFS level to prevent the rest of the world seeing the inode
 * before we've completed instantiation. Otherwise we can do it
 * the moment the inode lookup is complete.
 */
static inline void xfs_finish_inode_setup(struct xfs_inode *ip)
{
	xfs_iflags_clear(ip, XFS_INEW);
	barrier();
	unlock_new_inode(VFS_I(ip));
}

static inline void xfs_setup_existing_inode(struct xfs_inode *ip)
{
	xfs_setup_inode(ip);
	xfs_setup_iops(ip);
	xfs_finish_inode_setup(ip);
}

void xfs_irele(struct xfs_inode *ip);

extern struct kmem_cache	*xfs_inode_cache;

/* The default CoW extent size hint. */
#define XFS_DEFAULT_COWEXTSZ_HINT 32

bool xfs_inode_needs_inactive(struct xfs_inode *ip);

int xfs_iunlink_init(struct xfs_perag *pag);
void xfs_iunlink_destroy(struct xfs_perag *pag);

void xfs_end_io(struct work_struct *work);

int xfs_ilock2_io_mmap(struct xfs_inode *ip1, struct xfs_inode *ip2);
void xfs_iunlock2_io_mmap(struct xfs_inode *ip1, struct xfs_inode *ip2);

#endif	/* __XFS_INODE_H__ */
Commit	Line	Data
0b61f8a4	1	// SPDX-License-Identifier: GPL-2.0
1da177e4	2	/*
7b718769 NS	3	* Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
7b718769 NS	4	* All Rights Reserved.
1da177e4 LT	5	*/
	6	#ifndef __XFS_INODE_H__
	7	#define __XFS_INODE_H__
	8
1fd7115e	9	#include "xfs_inode_buf.h"
5c4d97d0	10	#include "xfs_inode_fork.h"
1da177e4	11
92bfc6e7	12	/*
1fd7115e	13	* Kernel only inode definitions
92bfc6e7	14	*/
1fd7115e DC	15	struct xfs_dinode;
1fd7115e DC	16	struct xfs_inode;
847fff5c	17	struct xfs_buf;
847fff5c	18	struct xfs_bmbt_irec;
847fff5c BN	19	struct xfs_inode_log_item;
	20	struct xfs_mount;
	21	struct xfs_trans;
	22	struct xfs_dquot;
	23
1da177e4 LT	24	typedef struct xfs_inode {
1da177e4 LT	25	/* Inode linking and identification information. */
1da177e4	26	struct xfs_mount i_mount; / fs mount struct ptr */
1da177e4 LT	27	struct xfs_dquot i_udquot; / user dquot */
1da177e4 LT	28	struct xfs_dquot i_gdquot; / group dquot */
92f8ff73	29	struct xfs_dquot i_pdquot; / project dquot */
1da177e4 LT	30
	31	/* Inode location stuff */
	32	xfs_ino_t i_ino; /* inode number (agno/agino)*/
92bfc6e7	33	struct xfs_imap i_imap; /* location for xfs_imap() */
1da177e4 LT	34
1da177e4 LT	35	/* Extent information. */
3ba738df CH	36	struct xfs_ifork i_cowfp; / copy on write extents */
3ba738df CH	37	struct xfs_ifork i_df; /* data fork */
2ed5b09b	38	struct xfs_ifork i_af; /* attribute fork */
1da177e4 LT	39
1da177e4 LT	40	/* Transaction and locking information. */
1da177e4 LT	41	struct xfs_inode_log_item i_itemp; / logging information */
1da177e4 LT	42	mrlock_t i_lock; /* inode lock */
1da177e4	43	atomic_t i_pincount; /* inode pin count */
ab23a776	44	struct llist_node i_gclist; /* deferred inactivation list */
6772c1f1 DW	45
	46	/*
	47	* Bitsets of inode metadata that have been checked and/or are sick.
	48	* Callers must hold i_flags_lock before accessing this field.
	49	*/
	50	uint16_t i_checked;
	51	uint16_t i_sick;
	52
f273ab84	53	spinlock_t i_flags_lock; /* inode i_flags lock */
1da177e4	54	/* Miscellaneous state. */
49e4c70e	55	unsigned long i_flags; /* see defined flags below */
394aafdc	56	uint64_t i_delayed_blks; /* count of delay alloc blks */
13d2c10b	57	xfs_fsize_t i_disk_size; /* number of bytes in file */
6e73a545	58	xfs_rfsblock_t i_nblocks; /* # of direct & btree blocks */
ceaf603c	59	prid_t i_projid; /* owner's project id */
031474c2	60	xfs_extlen_t i_extsize; /* basic/minimum extent size */
ee7b83fd CH	61	/* cowextsize is only used for v3 inodes, flushiter for v1/2 */
	62	union {
	63	xfs_extlen_t i_cowextsize; /* basic cow extent size */
	64	uint16_t i_flushiter; /* incremented on flush */
	65	};
7821ea30	66	uint8_t i_forkoff; /* attr fork offset >> 3 */
db07349d	67	uint16_t i_diflags; /* XFS_DIFLAG_... */
3e09ab8f	68	uint64_t i_diflags2; /* XFS_DIFLAG2_... */
e98d5e88	69	struct timespec64 i_crtime; /* time created */
1da177e4	70
bf904248 DC	71	/* VFS inode */
bf904248 DC	72	struct inode i_vnode; /* embedded VFS inode */
cb357bf3 DW	73
	74	/* pending io completions */
	75	spinlock_t i_ioend_lock;
	76	struct work_struct i_ioend_work;
	77	struct list_head i_ioend_list;
1da177e4 LT	78	} xfs_inode_t;
1da177e4 LT	79
732436ef DW	80	static inline struct xfs_ifork *
	81	xfs_ifork_ptr(
	82	struct xfs_inode *ip,
	83	int whichfork)
	84	{
	85	switch (whichfork) {
	86	case XFS_DATA_FORK:
	87	return &ip->i_df;
	88	case XFS_ATTR_FORK:
e45d7cb2	89	if (!XFS_IFORK_Q(ip))
2ed5b09b DW	90	return NULL;
2ed5b09b DW	91	return &ip->i_af;
732436ef DW	92	case XFS_COW_FORK:
	93	return ip->i_cowfp;
	94	default:
	95	ASSERT(0);
	96	return NULL;
	97	}
	98	}
	99
01651646 DC	100	/* Convert from vfs inode to xfs inode */
	101	static inline struct xfs_inode XFS_I(struct inode inode)
	102	{
bf904248	103	return container_of(inode, struct xfs_inode, i_vnode);
01651646 DC	104	}
01651646 DC	105
01651646 DC	106	/* convert from xfs inode to vfs inode */
	107	static inline struct inode VFS_I(struct xfs_inode ip)
	108	{
bf904248	109	return &ip->i_vnode;
01651646	110	}
01651646	111
ce7ae151 CH	112	/*
	113	* For regular files we only update the on-disk filesize when actually
	114	* writing data back to disk. Until then only the copy in the VFS inode
	115	* is uptodate.
	116	*/
	117	static inline xfs_fsize_t XFS_ISIZE(struct xfs_inode *ip)
	118	{
c19b3b05	119	if (S_ISREG(VFS_I(ip)->i_mode))
ce7ae151	120	return i_size_read(VFS_I(ip));
13d2c10b	121	return ip->i_disk_size;
ce7ae151 CH	122	}
ce7ae151 CH	123
6923e686 CH	124	/*
	125	* If this I/O goes past the on-disk inode size update it unless it would
	126	* be past the current in-core inode size.
	127	*/
	128	static inline xfs_fsize_t
	129	xfs_new_eof(struct xfs_inode *ip, xfs_fsize_t new_size)
	130	{
	131	xfs_fsize_t i_size = i_size_read(VFS_I(ip));
	132
ce57bcf6	133	if (new_size > i_size \|\| new_size < 0)
6923e686	134	new_size = i_size;
13d2c10b	135	return new_size > ip->i_disk_size ? new_size : 0;
6923e686 CH	136	}
6923e686 CH	137
7a18c386 DC	138	/*
	139	* i_flags helper functions
	140	*/
	141	static inline void
	142	__xfs_iflags_set(xfs_inode_t *ip, unsigned short flags)
	143	{
	144	ip->i_flags \|= flags;
	145	}
	146
	147	static inline void
	148	xfs_iflags_set(xfs_inode_t *ip, unsigned short flags)
	149	{
	150	spin_lock(&ip->i_flags_lock);
	151	__xfs_iflags_set(ip, flags);
	152	spin_unlock(&ip->i_flags_lock);
	153	}
	154
	155	static inline void
	156	xfs_iflags_clear(xfs_inode_t *ip, unsigned short flags)
	157	{
	158	spin_lock(&ip->i_flags_lock);
	159	ip->i_flags &= ~flags;
	160	spin_unlock(&ip->i_flags_lock);
	161	}
	162
	163	static inline int
	164	__xfs_iflags_test(xfs_inode_t *ip, unsigned short flags)
	165	{
	166	return (ip->i_flags & flags);
	167	}
	168
	169	static inline int
	170	xfs_iflags_test(xfs_inode_t *ip, unsigned short flags)
	171	{
	172	int ret;
	173	spin_lock(&ip->i_flags_lock);
	174	ret = __xfs_iflags_test(ip, flags);
	175	spin_unlock(&ip->i_flags_lock);
	176	return ret;
	177	}
09262b43 CH	178
	179	static inline int
	180	xfs_iflags_test_and_clear(xfs_inode_t *ip, unsigned short flags)
	181	{
	182	int ret;
	183
	184	spin_lock(&ip->i_flags_lock);
	185	ret = ip->i_flags & flags;
	186	if (ret)
	187	ip->i_flags &= ~flags;
	188	spin_unlock(&ip->i_flags_lock);
	189	return ret;
	190	}
1da177e4	191
474fce06 CH	192	static inline int
	193	xfs_iflags_test_and_set(xfs_inode_t *ip, unsigned short flags)
	194	{
	195	int ret;
	196
	197	spin_lock(&ip->i_flags_lock);
	198	ret = ip->i_flags & flags;
	199	if (!ret)
	200	ip->i_flags \|= flags;
	201	spin_unlock(&ip->i_flags_lock);
	202	return ret;
	203	}
	204
163467d3 ZYW	205	static inline prid_t
	206	xfs_get_initial_prid(struct xfs_inode *dp)
	207	{
db07349d	208	if (dp->i_diflags & XFS_DIFLAG_PROJINHERIT)
ceaf603c	209	return dp->i_projid;
163467d3 ZYW	210
	211	return XFS_PROJID_DEFAULT;
	212	}
	213
46eeb521 DW	214	static inline bool xfs_is_reflink_inode(struct xfs_inode *ip)
46eeb521 DW	215	{
3e09ab8f	216	return ip->i_diflags2 & XFS_DIFLAG2_REFLINK;
46eeb521 DW	217	}
46eeb521 DW	218
383e32b0 DW	219	static inline bool xfs_is_metadata_inode(struct xfs_inode *ip)
	220	{
	221	struct xfs_mount *mp = ip->i_mount;
	222
	223	return ip == mp->m_rbmip \|\| ip == mp->m_rsumip \|\|
	224	xfs_is_quota_inode(&mp->m_sb, ip->i_ino);
	225	}
	226
51d62690 CH	227	/*
	228	* Check if an inode has any data in the COW fork. This might be often false
	229	* even for inodes with the reflink flag when there is no pending COW operation.
	230	*/
	231	static inline bool xfs_inode_has_cow_data(struct xfs_inode *ip)
	232	{
	233	return ip->i_cowfp && ip->i_cowfp->if_bytes;
	234	}
	235
f93e5436 DW	236	static inline bool xfs_inode_has_bigtime(struct xfs_inode *ip)
f93e5436 DW	237	{
3e09ab8f	238	return ip->i_diflags2 & XFS_DIFLAG2_BIGTIME;
f93e5436 DW	239	}
f93e5436 DW	240
9b7d16e3 CB	241	static inline bool xfs_inode_has_large_extent_counts(struct xfs_inode *ip)
	242	{
	243	return ip->i_diflags2 & XFS_DIFLAG2_NREXT64;
	244	}
	245
30fa529e CH	246	/*
	247	* Return the buftarg used for data allocations on a given inode.
	248	*/
	249	#define xfs_inode_buftarg(ip) \
	250	(XFS_IS_REALTIME_INODE(ip) ? \
	251	(ip)->i_mount->m_rtdev_targp : (ip)->i_mount->m_ddev_targp)
	252
1da177e4 LT	253	/*
	254	* In-core inode flags.
	255	*/
474fce06 CH	256	#define XFS_IRECLAIM (1 << 0) /* started reclaiming this inode */
	257	#define XFS_ISTALE (1 << 1) /* inode has been staled */
	258	#define XFS_IRECLAIMABLE (1 << 2) /* inode can be reclaimed */
1090427b	259	#define XFS_INEW (1 << 3) /* inode has just been allocated */
9b3beb02	260	#define XFS_IPRESERVE_DM_FIELDS (1 << 4) /* has legacy DMAPI fields set */
474fce06 CH	261	#define XFS_ITRUNCATED (1 << 5) /* truncated down so flush-on-close */
474fce06 CH	262	#define XFS_IDIRTY_RELEASE (1 << 6) /* dirty release already seen */
718ecc50	263	#define XFS_IFLUSHING (1 << 7) /* inode is being flushed */
f392e631 CH	264	#define __XFS_IPINNED_BIT 8 /* wakeup key for zero pin count */
f392e631 CH	265	#define XFS_IPINNED (1 << __XFS_IPINNED_BIT)
dae2f8ed	266	#define XFS_IEOFBLOCKS (1 << 9) /* has the preallocblocks tag set */
ab23a776	267	#define XFS_NEED_INACTIVE (1 << 10) /* see XFS_INACTIVATING below */
17c12bcd DW	268	/*
	269	* If this unlinked inode is in the middle of recovery, don't let drop_inode
	270	* truncate and free the inode. This can happen if we iget the inode during
	271	* log recovery to replay a bmap operation on the inode.
	272	*/
	273	#define XFS_IRECOVERY (1 << 11)
91aae6be	274	#define XFS_ICOWBLOCKS (1 << 12)/* has the cowblocks tag set */
1da177e4	275
ab23a776 DC	276	/*
	277	* If we need to update on-disk metadata before this IRECLAIMABLE inode can be
	278	* freed, then NEED_INACTIVE will be set. Once we start the updates, the
	279	* INACTIVATING bit will be set to keep iget away from this inode. After the
	280	* inactivation completes, both flags will be cleared and the inode is a
	281	* plain old IRECLAIMABLE inode.
	282	*/
	283	#define XFS_INACTIVATING (1 << 13)
	284
	285	/* All inode state flags related to inode reclaim. */
	286	#define XFS_ALL_IRECLAIM_FLAGS (XFS_IRECLAIMABLE \| \
	287	XFS_IRECLAIM \| \
	288	XFS_NEED_INACTIVE \| \
	289	XFS_INACTIVATING)
	290
778e24bb DC	291	/*
778e24bb DC	292	* Per-lifetime flags need to be reset when re-using a reclaimable inode during
5132ba8f	293	* inode lookup. This prevents unintended behaviour on the new inode from
778e24bb DC	294	* ocurring.
	295	*/
	296	#define XFS_IRECLAIM_RESET_FLAGS \
	297	(XFS_IRECLAIMABLE \| XFS_IRECLAIM \| \
ab23a776 DC	298	XFS_IDIRTY_RELEASE \| XFS_ITRUNCATED \| XFS_NEED_INACTIVE \| \
ab23a776 DC	299	XFS_INACTIVATING)
778e24bb	300
1da177e4 LT	301	/*
1da177e4 LT	302	* Flags for inode locking.
f7c66ce3 LM	303	* Bit ranges: 1<<1 - 1<<16-1 -- iolock/ilock modes (bitfield)
f7c66ce3 LM	304	* 1<<16 - 1<<32-1 -- lockdep annotation (integers)
1da177e4	305	*/
a1033753 DC	306	#define XFS_IOLOCK_EXCL (1u << 0)
	307	#define XFS_IOLOCK_SHARED (1u << 1)
	308	#define XFS_ILOCK_EXCL (1u << 2)
	309	#define XFS_ILOCK_SHARED (1u << 3)
	310	#define XFS_MMAPLOCK_EXCL (1u << 4)
	311	#define XFS_MMAPLOCK_SHARED (1u << 5)
1da177e4	312
f7c66ce3	313	#define XFS_LOCK_MASK (XFS_IOLOCK_EXCL \| XFS_IOLOCK_SHARED \
653c60b6 DC	314	\| XFS_ILOCK_EXCL \| XFS_ILOCK_SHARED \
653c60b6 DC	315	\| XFS_MMAPLOCK_EXCL \| XFS_MMAPLOCK_SHARED)
f7c66ce3	316
0b1b213f CH	317	#define XFS_LOCK_FLAGS \
	318	{ XFS_IOLOCK_EXCL, "IOLOCK_EXCL" }, \
	319	{ XFS_IOLOCK_SHARED, "IOLOCK_SHARED" }, \
	320	{ XFS_ILOCK_EXCL, "ILOCK_EXCL" }, \
653c60b6 DC	321	{ XFS_ILOCK_SHARED, "ILOCK_SHARED" }, \
	322	{ XFS_MMAPLOCK_EXCL, "MMAPLOCK_EXCL" }, \
	323	{ XFS_MMAPLOCK_SHARED, "MMAPLOCK_SHARED" }
0b1b213f CH	324
0b1b213f CH	325
f7c66ce3 LM	326	/*
	327	* Flags for lockdep annotations.
	328	*
9681153b	329	* XFS_LOCK_PARENT - for directory operations that require locking a
0952c818 DC	330	* parent directory inode and a child entry inode. IOLOCK requires nesting,
	331	* MMAPLOCK does not support this class, ILOCK requires a single subclass
	332	* to differentiate parent from child.
9681153b CH	333	*
	334	* XFS_LOCK_RTBITMAP/XFS_LOCK_RTSUM - the realtime device bitmap and summary
	335	* inodes do not participate in the normal lock order, and thus have their
	336	* own subclasses.
f7c66ce3	337	*
0f1145cc	338	* XFS_LOCK_INUMORDER - for locking several inodes at the some time
f7c66ce3 LM	339	* with xfs_lock_inodes(). This flag is used as the starting subclass
f7c66ce3 LM	340	* and each subsequent lock acquired will increment the subclass by one.
0952c818 DC	341	* However, MAX_LOCKDEP_SUBCLASSES == 8, which means we are greatly
	342	* limited to the subclasses we can represent via nesting. We need at least
	343	* 5 inodes nest depth for the ILOCK through rename, and we also have to support
	344	* XFS_ILOCK_PARENT, which gives 6 subclasses. Then we have XFS_ILOCK_RTBITMAP
	345	* and XFS_ILOCK_RTSUM, which are another 2 unique subclasses, so that's all
	346	* 8 subclasses supported by lockdep.
	347	*
	348	* This also means we have to number the sub-classes in the lowest bits of
	349	* the mask we keep, and we have to ensure we never exceed 3 bits of lockdep
	350	* mask and we can't use bit-masking to build the subclasses. What a mess.
	351	*
	352	* Bit layout:
	353	*
	354	* Bit Lock Region
	355	* 16-19 XFS_IOLOCK_SHIFT dependencies
	356	* 20-23 XFS_MMAPLOCK_SHIFT dependencies
	357	* 24-31 XFS_ILOCK_SHIFT dependencies
	358	*
	359	* IOLOCK values
	360	*
	361	* 0-3 subclass value
65523218	362	* 4-7 unused
0952c818 DC	363	*
	364	* MMAPLOCK values
	365	*
	366	* 0-3 subclass value
	367	* 4-7 unused
	368	*
	369	* ILOCK values
	370	* 0-4 subclass values
	371	* 5 PARENT subclass (not nestable)
	372	* 6 RTBITMAP subclass (not nestable)
	373	* 7 RTSUM subclass (not nestable)
	374	*
f7c66ce3	375	*/
0952c818	376	#define XFS_IOLOCK_SHIFT 16
65523218	377	#define XFS_IOLOCK_MAX_SUBCLASS 3
a1033753	378	#define XFS_IOLOCK_DEP_MASK 0x000f0000u
0952c818 DC	379
	380	#define XFS_MMAPLOCK_SHIFT 20
	381	#define XFS_MMAPLOCK_NUMORDER 0
	382	#define XFS_MMAPLOCK_MAX_SUBCLASS 3
a1033753	383	#define XFS_MMAPLOCK_DEP_MASK 0x00f00000u
0952c818 DC	384
0952c818 DC	385	#define XFS_ILOCK_SHIFT 24
a1033753	386	#define XFS_ILOCK_PARENT_VAL 5u
0952c818	387	#define XFS_ILOCK_MAX_SUBCLASS (XFS_ILOCK_PARENT_VAL - 1)
a1033753 DC	388	#define XFS_ILOCK_RTBITMAP_VAL 6u
	389	#define XFS_ILOCK_RTSUM_VAL 7u
	390	#define XFS_ILOCK_DEP_MASK 0xff000000u
0952c818 DC	391	#define XFS_ILOCK_PARENT (XFS_ILOCK_PARENT_VAL << XFS_ILOCK_SHIFT)
	392	#define XFS_ILOCK_RTBITMAP (XFS_ILOCK_RTBITMAP_VAL << XFS_ILOCK_SHIFT)
	393	#define XFS_ILOCK_RTSUM (XFS_ILOCK_RTSUM_VAL << XFS_ILOCK_SHIFT)
	394
	395	#define XFS_LOCK_SUBCLASS_MASK (XFS_IOLOCK_DEP_MASK \| \
653c60b6 DC	396	XFS_MMAPLOCK_DEP_MASK \| \
	397	XFS_ILOCK_DEP_MASK)
	398
	399	#define XFS_IOLOCK_DEP(flags) (((flags) & XFS_IOLOCK_DEP_MASK) \
	400	>> XFS_IOLOCK_SHIFT)
	401	#define XFS_MMAPLOCK_DEP(flags) (((flags) & XFS_MMAPLOCK_DEP_MASK) \
	402	>> XFS_MMAPLOCK_SHIFT)
	403	#define XFS_ILOCK_DEP(flags) (((flags) & XFS_ILOCK_DEP_MASK) \
	404	>> XFS_ILOCK_SHIFT)
1da177e4	405
69eb5fa1 DW	406	/*
	407	* Layouts are broken in the BREAK_WRITE case to ensure that
	408	* layout-holders do not collide with local writes. Additionally,
	409	* layouts are broken in the BREAK_UNMAP case to make sure the
	410	* layout-holder has a consistent view of the file's extent map. While
	411	* BREAK_WRITE breaks can be satisfied by recalling FL_LAYOUT leases,
	412	* BREAK_UNMAP breaks additionally require waiting for busy dax-pages to
	413	* go idle.
	414	*/
	415	enum layout_break_reason {
	416	BREAK_WRITE,
	417	BREAK_UNMAP,
	418	};
	419
1da177e4 LT	420	/*
	421	* For multiple groups support: if S_ISGID bit is set in the parent
	422	* directory, group of new file is set to that of the parent, and
	423	* new subdirectory gets S_ISGID bit from parent.
	424	*/
bd186aa9	425	#define XFS_INHERIT_GID(pip) \
0560f31a	426	(xfs_has_grpid((pip)->i_mount) \|\| (VFS_I(pip)->i_mode & S_ISGID))
1da177e4	427
c24b5dfa	428	int xfs_release(struct xfs_inode *ip);
74564fb4	429	void xfs_inactive(struct xfs_inode *ip);
996b2329	430	int xfs_lookup(struct xfs_inode dp, const struct xfs_name name,
c24b5dfa	431	struct xfs_inode *ipp, struct xfs_name ci_name);
f736d93d CH	432	int xfs_create(struct user_namespace *mnt_userns,
f736d93d CH	433	struct xfs_inode dp, struct xfs_name name,
e6a688c3 DC	434	umode_t mode, dev_t rdev, bool need_xattr,
e6a688c3 DC	435	struct xfs_inode **ipp);
f736d93d CH	436	int xfs_create_tmpfile(struct user_namespace *mnt_userns,
f736d93d CH	437	struct xfs_inode *dp, umode_t mode,
a1f69417	438	struct xfs_inode **ipp);
c24b5dfa DC	439	int xfs_remove(struct xfs_inode dp, struct xfs_name name,
	440	struct xfs_inode *ip);
	441	int xfs_link(struct xfs_inode tdp, struct xfs_inode sip,
	442	struct xfs_name *target_name);
f736d93d CH	443	int xfs_rename(struct user_namespace *mnt_userns,
f736d93d CH	444	struct xfs_inode src_dp, struct xfs_name src_name,
c24b5dfa DC	445	struct xfs_inode src_ip, struct xfs_inode target_dp,
c24b5dfa DC	446	struct xfs_name *target_name,
d31a1825	447	struct xfs_inode *target_ip, unsigned int flags);
c24b5dfa	448
1da177e4 LT	449	void xfs_ilock(xfs_inode_t *, uint);
	450	int xfs_ilock_nowait(xfs_inode_t *, uint);
	451	void xfs_iunlock(xfs_inode_t *, uint);
	452	void xfs_ilock_demote(xfs_inode_t *, uint);
e31cbde7	453	bool xfs_isilocked(struct xfs_inode *, uint);
309ecac8	454	uint xfs_ilock_data_map_shared(struct xfs_inode *);
efa70be1	455	uint xfs_ilock_attr_map_shared(struct xfs_inode *);
347d1c01	456
1da177e4	457	uint xfs_ip2xflags(struct xfs_inode *);
0e0417f3	458	int xfs_ifree(struct xfs_trans , struct xfs_inode );
4e529339 BF	459	int xfs_itruncate_extents_flags(struct xfs_trans **,
4e529339 BF	460	struct xfs_inode *, int, xfs_fsize_t, int);
1da177e4	461	void xfs_iext_realloc(xfs_inode_t *, int, int);
1fd7115e	462
54fbdd10	463	int xfs_log_force_inode(struct xfs_inode *ip);
777df5af	464	void xfs_iunpin_wait(xfs_inode_t *);
1fd7115e DC	465	#define xfs_ipincount(ip) ((unsigned int) atomic_read(&ip->i_pincount))
1fd7115e DC	466
5717ea4d	467	int xfs_iflush_cluster(struct xfs_buf *);
7c2d238a DW	468	void xfs_lock_two_inodes(struct xfs_inode *ip0, uint ip0_mode,
7c2d238a DW	469	struct xfs_inode *ip1, uint ip1_mode);
1da177e4	470
2a0ec1d9	471	xfs_extlen_t xfs_get_extsz_hint(struct xfs_inode *ip);
f7ca3522	472	xfs_extlen_t xfs_get_cowextsz_hint(struct xfs_inode *ip);
2a0ec1d9	473
b652afd9 DC	474	int xfs_init_new_inode(struct user_namespace mnt_userns, struct xfs_trans tp,
	475	struct xfs_inode *pip, xfs_ino_t ino, umode_t mode,
	476	xfs_nlink_t nlink, dev_t rdev, prid_t prid, bool init_xattrs,
	477	struct xfs_inode **ipp);
e546cb79	478
13b86fc3 BF	479	static inline int
	480	xfs_itruncate_extents(
	481	struct xfs_trans **tpp,
	482	struct xfs_inode *ip,
	483	int whichfork,
	484	xfs_fsize_t new_size)
	485	{
4e529339	486	return xfs_itruncate_extents_flags(tpp, ip, whichfork, new_size, 0);
13b86fc3 BF	487	}
13b86fc3 BF	488
c24b5dfa	489	/* from xfs_file.c */
69eb5fa1 DW	490	int xfs_break_layouts(struct inode inode, uint iolock,
69eb5fa1 DW	491	enum layout_break_reason reason);
c24b5dfa	492
58c90473	493	/* from xfs_iops.c */
2b3d1d41 CH	494	extern void xfs_setup_inode(struct xfs_inode *ip);
2b3d1d41 CH	495	extern void xfs_setup_iops(struct xfs_inode *ip);
840d493d	496	extern void xfs_diflags_to_iflags(struct xfs_inode *ip, bool init);
2b3d1d41	497
58c90473 DC	498	/*
	499	* When setting up a newly allocated inode, we need to call
	500	* xfs_finish_inode_setup() once the inode is fully instantiated at
	501	* the VFS level to prevent the rest of the world seeing the inode
	502	* before we've completed instantiation. Otherwise we can do it
	503	* the moment the inode lookup is complete.
	504	*/
58c90473 DC	505	static inline void xfs_finish_inode_setup(struct xfs_inode *ip)
	506	{
	507	xfs_iflags_clear(ip, XFS_INEW);
	508	barrier();
	509	unlock_new_inode(VFS_I(ip));
	510	}
	511
	512	static inline void xfs_setup_existing_inode(struct xfs_inode *ip)
	513	{
	514	xfs_setup_inode(ip);
2b3d1d41	515	xfs_setup_iops(ip);
58c90473 DC	516	xfs_finish_inode_setup(ip);
	517	}
	518
44a8736b	519	void xfs_irele(struct xfs_inode *ip);
5a8d0f3c	520
182696fb	521	extern struct kmem_cache *xfs_inode_cache;
1da177e4	522
e153aa79 DW	523	/* The default CoW extent size hint. */
	524	#define XFS_DEFAULT_COWEXTSZ_HINT 32
	525
62af7d54 DW	526	bool xfs_inode_needs_inactive(struct xfs_inode *ip);
62af7d54 DW	527
9b247179 DW	528	int xfs_iunlink_init(struct xfs_perag *pag);
	529	void xfs_iunlink_destroy(struct xfs_perag *pag);
	530
cb357bf3 DW	531	void xfs_end_io(struct work_struct *work);
cb357bf3 DW	532
e2aaee9c DW	533	int xfs_ilock2_io_mmap(struct xfs_inode ip1, struct xfs_inode ip2);
	534	void xfs_iunlock2_io_mmap(struct xfs_inode ip1, struct xfs_inode ip2);
	535
1da177e4	536	#endif /* __XFS_INODE_H__ */