mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-20 21:29:58 +07:00
25435e5ed6
struct gfs2_alloc_parms is passed to gfs2_quota_check() and gfs2_inplace_reserve() with ap->target containing the number of blocks being requested for allocation in the current operation. We add a new field to struct gfs2_alloc_parms called 'allowed'. gfs2_quota_check() and gfs2_inplace_reserve() return the max blocks allowed by quota and the max blocks allowed by the chosen rgrp respectively in 'allowed'. A new field 'min_target', when non-zero, tells gfs2_quota_check() and gfs2_inplace_reserve() to not return -EDQUOT/-ENOSPC when there are atleast 'min_target' blocks allowable/available. The assumption is that the caller is ok with just 'min_target' blocks and will likely proceed with allocating them. Signed-off-by: Abhi Das <adas@redhat.com> Signed-off-by: Bob Peterson <rpeterso@redhat.com> Acked-by: Steven Whitehouse <swhiteho@redhat.com>
87 lines
3.3 KiB
C
87 lines
3.3 KiB
C
/*
|
|
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
|
|
* Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
|
|
*
|
|
* This copyrighted material is made available to anyone wishing to use,
|
|
* modify, copy, or redistribute it subject to the terms and conditions
|
|
* of the GNU General Public License version 2.
|
|
*/
|
|
|
|
#ifndef __RGRP_DOT_H__
|
|
#define __RGRP_DOT_H__
|
|
|
|
#include <linux/slab.h>
|
|
#include <linux/uaccess.h>
|
|
|
|
/* Since each block in the file system is represented by two bits in the
|
|
* bitmap, one 64-bit word in the bitmap will represent 32 blocks.
|
|
* By reserving 32 blocks at a time, we can optimize / shortcut how we search
|
|
* through the bitmaps by looking a word at a time.
|
|
*/
|
|
#define RGRP_RSRV_MINBYTES 8
|
|
#define RGRP_RSRV_MINBLKS ((u32)(RGRP_RSRV_MINBYTES * GFS2_NBBY))
|
|
#define RGRP_RSRV_ADDBLKS 64
|
|
|
|
struct gfs2_rgrpd;
|
|
struct gfs2_sbd;
|
|
struct gfs2_holder;
|
|
|
|
extern void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd);
|
|
|
|
extern struct gfs2_rgrpd *gfs2_blk2rgrpd(struct gfs2_sbd *sdp, u64 blk, bool exact);
|
|
extern struct gfs2_rgrpd *gfs2_rgrpd_get_first(struct gfs2_sbd *sdp);
|
|
extern struct gfs2_rgrpd *gfs2_rgrpd_get_next(struct gfs2_rgrpd *rgd);
|
|
|
|
extern void gfs2_clear_rgrpd(struct gfs2_sbd *sdp);
|
|
extern int gfs2_rindex_update(struct gfs2_sbd *sdp);
|
|
extern void gfs2_free_clones(struct gfs2_rgrpd *rgd);
|
|
extern int gfs2_rgrp_go_lock(struct gfs2_holder *gh);
|
|
extern void gfs2_rgrp_go_unlock(struct gfs2_holder *gh);
|
|
|
|
extern struct gfs2_alloc *gfs2_alloc_get(struct gfs2_inode *ip);
|
|
|
|
#define GFS2_AF_ORLOV 1
|
|
extern int gfs2_inplace_reserve(struct gfs2_inode *ip,
|
|
struct gfs2_alloc_parms *ap);
|
|
extern void gfs2_inplace_release(struct gfs2_inode *ip);
|
|
|
|
extern int gfs2_alloc_blocks(struct gfs2_inode *ip, u64 *bn, unsigned int *n,
|
|
bool dinode, u64 *generation);
|
|
|
|
extern int gfs2_rs_alloc(struct gfs2_inode *ip);
|
|
extern void gfs2_rs_deltree(struct gfs2_blkreserv *rs);
|
|
extern void gfs2_rs_delete(struct gfs2_inode *ip, atomic_t *wcount);
|
|
extern void __gfs2_free_blocks(struct gfs2_inode *ip, u64 bstart, u32 blen, int meta);
|
|
extern void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen);
|
|
extern void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip);
|
|
extern void gfs2_unlink_di(struct inode *inode);
|
|
extern int gfs2_check_blk_type(struct gfs2_sbd *sdp, u64 no_addr,
|
|
unsigned int type);
|
|
|
|
struct gfs2_rgrp_list {
|
|
unsigned int rl_rgrps;
|
|
unsigned int rl_space;
|
|
struct gfs2_rgrpd **rl_rgd;
|
|
struct gfs2_holder *rl_ghs;
|
|
};
|
|
|
|
extern void gfs2_rlist_add(struct gfs2_inode *ip, struct gfs2_rgrp_list *rlist,
|
|
u64 block);
|
|
extern void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist, unsigned int state);
|
|
extern void gfs2_rlist_free(struct gfs2_rgrp_list *rlist);
|
|
extern u64 gfs2_ri_total(struct gfs2_sbd *sdp);
|
|
extern void gfs2_rgrp_dump(struct seq_file *seq, const struct gfs2_glock *gl);
|
|
extern int gfs2_rgrp_send_discards(struct gfs2_sbd *sdp, u64 offset,
|
|
struct buffer_head *bh,
|
|
const struct gfs2_bitmap *bi, unsigned minlen, u64 *ptrimmed);
|
|
extern int gfs2_fitrim(struct file *filp, void __user *argp);
|
|
|
|
/* This is how to tell if a reservation is in the rgrp tree: */
|
|
static inline bool gfs2_rs_active(struct gfs2_blkreserv *rs)
|
|
{
|
|
return rs && !RB_EMPTY_NODE(&rs->rs_node);
|
|
}
|
|
|
|
extern void check_and_update_goal(struct gfs2_inode *ip);
|
|
#endif /* __RGRP_DOT_H__ */
|