mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-22 20:23:57 +08:00
afabfd30d0
xfs_rtmodify_summary and xfs_rtget_summary are almost identical; fold them into xfs_rtmodify_summary_int(), with wrappers for each of the original calls. The _int function modifies if a delta is passed, and returns a summary pointer if *sum is passed. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
146 lines
4.9 KiB
C
146 lines
4.9 KiB
C
/*
|
|
* Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
|
|
* All Rights Reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it would be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write the Free Software Foundation,
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
#ifndef __XFS_RTALLOC_H__
|
|
#define __XFS_RTALLOC_H__
|
|
|
|
/* kernel only definitions and functions */
|
|
|
|
struct xfs_mount;
|
|
struct xfs_trans;
|
|
|
|
#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 */
|
|
xfs_alloctype_t type, /* allocation type XFS_ALLOCTYPE... */
|
|
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,
|
|
xfs_buf_t **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, xfs_buf_t **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);
|
|
|
|
|
|
#else
|
|
# define xfs_rtallocate_extent(t,b,min,max,l,a,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)
|
|
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__ */
|