mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 22:53:55 +08:00
e82226138b
Prepare for kernel xfs_buf alignment by getting rid of the xfs_buf_t typedef from userspace. [darrick: This patch is a port of a userspace patch removing the xfs_buf_t typedef in preparation to make the userspace xfs_buf code behave more like its kernel counterpart.] Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
163 lines
5.4 KiB
C
163 lines
5.4 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
|
|
* All Rights Reserved.
|
|
*/
|
|
#ifndef __XFS_RTALLOC_H__
|
|
#define __XFS_RTALLOC_H__
|
|
|
|
/* kernel only definitions and functions */
|
|
|
|
struct xfs_mount;
|
|
struct xfs_trans;
|
|
|
|
/*
|
|
* XXX: Most of the realtime allocation functions deal in units of realtime
|
|
* extents, not realtime blocks. This looks funny when paired with the type
|
|
* name and screams for a larger cleanup.
|
|
*/
|
|
struct xfs_rtalloc_rec {
|
|
xfs_rtblock_t ar_startext;
|
|
xfs_rtblock_t ar_extcount;
|
|
};
|
|
|
|
typedef int (*xfs_rtalloc_query_range_fn)(
|
|
struct xfs_trans *tp,
|
|
struct xfs_rtalloc_rec *rec,
|
|
void *priv);
|
|
|
|
#ifdef CONFIG_XFS_RT
|
|
/*
|
|
* Function prototypes for exported functions.
|
|
*/
|
|
|
|
/*
|
|
* Allocate an extent in the realtime subvolume, with the usual allocation
|
|
* parameters. The length units are all in realtime extents, as is the
|
|
* result block number.
|
|
*/
|
|
int /* error */
|
|
xfs_rtallocate_extent(
|
|
struct xfs_trans *tp, /* transaction pointer */
|
|
xfs_rtblock_t bno, /* starting block number to allocate */
|
|
xfs_extlen_t minlen, /* minimum length to allocate */
|
|
xfs_extlen_t maxlen, /* maximum length to allocate */
|
|
xfs_extlen_t *len, /* out: actual length allocated */
|
|
int wasdel, /* was a delayed allocation extent */
|
|
xfs_extlen_t prod, /* extent product factor */
|
|
xfs_rtblock_t *rtblock); /* out: start block allocated */
|
|
|
|
/*
|
|
* Free an extent in the realtime subvolume. Length is expressed in
|
|
* realtime extents, as is the block number.
|
|
*/
|
|
int /* error */
|
|
xfs_rtfree_extent(
|
|
struct xfs_trans *tp, /* transaction pointer */
|
|
xfs_rtblock_t bno, /* starting block number to free */
|
|
xfs_extlen_t len); /* length of extent freed */
|
|
|
|
/*
|
|
* Initialize realtime fields in the mount structure.
|
|
*/
|
|
int /* error */
|
|
xfs_rtmount_init(
|
|
struct xfs_mount *mp); /* file system mount structure */
|
|
void
|
|
xfs_rtunmount_inodes(
|
|
struct xfs_mount *mp);
|
|
|
|
/*
|
|
* Get the bitmap and summary inodes into the mount structure
|
|
* at mount time.
|
|
*/
|
|
int /* error */
|
|
xfs_rtmount_inodes(
|
|
struct xfs_mount *mp); /* file system mount structure */
|
|
|
|
/*
|
|
* Pick an extent for allocation at the start of a new realtime file.
|
|
* Use the sequence number stored in the atime field of the bitmap inode.
|
|
* Translate this to a fraction of the rtextents, and return the product
|
|
* of rtextents and the fraction.
|
|
* The fraction sequence is 0, 1/2, 1/4, 3/4, 1/8, ..., 7/8, 1/16, ...
|
|
*/
|
|
int /* error */
|
|
xfs_rtpick_extent(
|
|
struct xfs_mount *mp, /* file system mount point */
|
|
struct xfs_trans *tp, /* transaction pointer */
|
|
xfs_extlen_t len, /* allocation length (rtextents) */
|
|
xfs_rtblock_t *pick); /* result rt extent */
|
|
|
|
/*
|
|
* Grow the realtime area of the filesystem.
|
|
*/
|
|
int
|
|
xfs_growfs_rt(
|
|
struct xfs_mount *mp, /* file system mount structure */
|
|
xfs_growfs_rt_t *in); /* user supplied growfs struct */
|
|
|
|
/*
|
|
* From xfs_rtbitmap.c
|
|
*/
|
|
int xfs_rtbuf_get(struct xfs_mount *mp, struct xfs_trans *tp,
|
|
xfs_rtblock_t block, int issum, struct xfs_buf **bpp);
|
|
int xfs_rtcheck_range(struct xfs_mount *mp, struct xfs_trans *tp,
|
|
xfs_rtblock_t start, xfs_extlen_t len, int val,
|
|
xfs_rtblock_t *new, int *stat);
|
|
int xfs_rtfind_back(struct xfs_mount *mp, struct xfs_trans *tp,
|
|
xfs_rtblock_t start, xfs_rtblock_t limit,
|
|
xfs_rtblock_t *rtblock);
|
|
int xfs_rtfind_forw(struct xfs_mount *mp, struct xfs_trans *tp,
|
|
xfs_rtblock_t start, xfs_rtblock_t limit,
|
|
xfs_rtblock_t *rtblock);
|
|
int xfs_rtmodify_range(struct xfs_mount *mp, struct xfs_trans *tp,
|
|
xfs_rtblock_t start, xfs_extlen_t len, int val);
|
|
int xfs_rtmodify_summary_int(struct xfs_mount *mp, struct xfs_trans *tp,
|
|
int log, xfs_rtblock_t bbno, int delta,
|
|
struct xfs_buf **rbpp, xfs_fsblock_t *rsb,
|
|
xfs_suminfo_t *sum);
|
|
int xfs_rtmodify_summary(struct xfs_mount *mp, struct xfs_trans *tp, int log,
|
|
xfs_rtblock_t bbno, int delta, struct xfs_buf **rbpp,
|
|
xfs_fsblock_t *rsb);
|
|
int xfs_rtfree_range(struct xfs_mount *mp, struct xfs_trans *tp,
|
|
xfs_rtblock_t start, xfs_extlen_t len,
|
|
struct xfs_buf **rbpp, xfs_fsblock_t *rsb);
|
|
int xfs_rtalloc_query_range(struct xfs_trans *tp,
|
|
struct xfs_rtalloc_rec *low_rec,
|
|
struct xfs_rtalloc_rec *high_rec,
|
|
xfs_rtalloc_query_range_fn fn,
|
|
void *priv);
|
|
int xfs_rtalloc_query_all(struct xfs_trans *tp,
|
|
xfs_rtalloc_query_range_fn fn,
|
|
void *priv);
|
|
bool xfs_verify_rtbno(struct xfs_mount *mp, xfs_rtblock_t rtbno);
|
|
int xfs_rtalloc_extent_is_free(struct xfs_mount *mp, struct xfs_trans *tp,
|
|
xfs_rtblock_t start, xfs_extlen_t len,
|
|
bool *is_free);
|
|
#else
|
|
# define xfs_rtallocate_extent(t,b,min,max,l,f,p,rb) (ENOSYS)
|
|
# define xfs_rtfree_extent(t,b,l) (ENOSYS)
|
|
# define xfs_rtpick_extent(m,t,l,rb) (ENOSYS)
|
|
# define xfs_growfs_rt(mp,in) (ENOSYS)
|
|
# define xfs_rtalloc_query_range(t,l,h,f,p) (ENOSYS)
|
|
# define xfs_rtalloc_query_all(t,f,p) (ENOSYS)
|
|
# define xfs_rtbuf_get(m,t,b,i,p) (ENOSYS)
|
|
# define xfs_verify_rtbno(m, r) (false)
|
|
# define xfs_rtalloc_extent_is_free(m,t,s,l,i) (ENOSYS)
|
|
static inline int /* error */
|
|
xfs_rtmount_init(
|
|
xfs_mount_t *mp) /* file system mount structure */
|
|
{
|
|
if (mp->m_sb.sb_rblocks == 0)
|
|
return 0;
|
|
|
|
xfs_warn(mp, "Not built with CONFIG_XFS_RT");
|
|
return -ENOSYS;
|
|
}
|
|
# define xfs_rtmount_inodes(m) (((mp)->m_sb.sb_rblocks == 0)? 0 : (ENOSYS))
|
|
# define xfs_rtunmount_inodes(m)
|
|
#endif /* CONFIG_XFS_RT */
|
|
|
|
#endif /* __XFS_RTALLOC_H__ */
|