Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * Copyright (c) 2000-2001 Silicon Graphics, Inc.  All Rights Reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #ifndef __XFS_ITABLE_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) #define	__XFS_ITABLE_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) /* In-memory representation of a userspace request for batch inode data. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) struct xfs_ibulk {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 	struct xfs_mount	*mp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 	void __user		*ubuffer; /* user output buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	xfs_ino_t		startino; /* start with this inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	unsigned int		icount;   /* number of elements in ubuffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	unsigned int		ocount;   /* number of records returned */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	unsigned int		flags;    /* see XFS_IBULK_FLAG_* */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) /* Only iterate within the same AG as startino */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #define XFS_IBULK_SAME_AG	(XFS_IWALK_SAME_AG)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)  * Advance the user buffer pointer by one record of the given size.  If the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)  * buffer is now full, return the appropriate error code.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) static inline int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) xfs_ibulk_advance(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	struct xfs_ibulk	*breq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	size_t			bytes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	char __user		*b = breq->ubuffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	breq->ubuffer = b + bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	breq->ocount++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	return breq->ocount == breq->icount ? -ECANCELED : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)  * Return stat information in bulk (by-inode) for the filesystem.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)  * Return codes for the formatter function are 0 to continue iterating, and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)  * non-zero to stop iterating.  Any non-zero value will be passed up to the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)  * bulkstat/inumbers caller.  The special value -ECANCELED can be used to stop
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)  * iteration, as neither bulkstat nor inumbers will ever generate that error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)  * code on their own.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) typedef int (*bulkstat_one_fmt_pf)(struct xfs_ibulk *breq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 		const struct xfs_bulkstat *bstat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) int xfs_bulkstat_one(struct xfs_ibulk *breq, bulkstat_one_fmt_pf formatter);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) int xfs_bulkstat(struct xfs_ibulk *breq, bulkstat_one_fmt_pf formatter);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) void xfs_bulkstat_to_bstat(struct xfs_mount *mp, struct xfs_bstat *bs1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 		const struct xfs_bulkstat *bstat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) typedef int (*inumbers_fmt_pf)(struct xfs_ibulk *breq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 		const struct xfs_inumbers *igrp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) int xfs_inumbers(struct xfs_ibulk *breq, inumbers_fmt_pf formatter);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) void xfs_inumbers_to_inogrp(struct xfs_inogrp *ig1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 		const struct xfs_inumbers *ig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) #endif	/* __XFS_ITABLE_H__ */