diff options
Diffstat (limited to 'fs/gfs2/rgrp.h')
| -rw-r--r-- | fs/gfs2/rgrp.h | 100 |
1 files changed, 57 insertions, 43 deletions
diff --git a/fs/gfs2/rgrp.h b/fs/gfs2/rgrp.h index 5b3f4a896e6c..8d20e99385db 100644 --- a/fs/gfs2/rgrp.h +++ b/fs/gfs2/rgrp.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * 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__ @@ -18,43 +15,45 @@ * 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_MINBLKS 32 +#define RGRP_RSRV_ADDBLKS 64 struct gfs2_rgrpd; struct gfs2_sbd; struct gfs2_holder; -extern void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd); +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); +struct gfs2_rgrpd *gfs2_blk2rgrpd(struct gfs2_sbd *sdp, u64 blk, bool exact); +struct gfs2_rgrpd *gfs2_rgrpd_get_first(struct gfs2_sbd *sdp); +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); +void gfs2_clear_rgrpd(struct gfs2_sbd *sdp); +int gfs2_rindex_update(struct gfs2_sbd *sdp); +void gfs2_free_clones(struct gfs2_rgrpd *rgd); +int gfs2_rgrp_go_instantiate(struct gfs2_glock *gl); +void gfs2_rgrp_brelse(struct gfs2_rgrpd *rgd); -extern struct gfs2_alloc *gfs2_alloc_get(struct gfs2_inode *ip); +struct gfs2_alloc *gfs2_alloc_get(struct gfs2_inode *ip); #define GFS2_AF_ORLOV 1 -extern int gfs2_inplace_reserve(struct gfs2_inode *ip, u32 requested, u32 flags); -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); -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); +int gfs2_inplace_reserve(struct gfs2_inode *ip, + struct gfs2_alloc_parms *ap); +void gfs2_inplace_release(struct gfs2_inode *ip); + +int gfs2_alloc_blocks(struct gfs2_inode *ip, u64 *bn, unsigned int *n, + bool dinode); + +void gfs2_rs_deltree(struct gfs2_blkreserv *rs); +void gfs2_rs_delete(struct gfs2_inode *ip); +void __gfs2_free_blocks(struct gfs2_inode *ip, struct gfs2_rgrpd *rgd, + u64 bstart, u32 blen, int meta); +void gfs2_free_meta(struct gfs2_inode *ip, struct gfs2_rgrpd *rgd, + u64 bstart, u32 blen); +void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip); +void gfs2_unlink_di(struct inode *inode); +int gfs2_check_blk_type(struct gfs2_sbd *sdp, u64 no_addr, + unsigned int type); struct gfs2_rgrp_list { unsigned int rl_rgrps; @@ -63,21 +62,36 @@ struct gfs2_rgrp_list { 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 int 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); +void gfs2_rlist_add(struct gfs2_inode *ip, struct gfs2_rgrp_list *rlist, + u64 block); +void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist, + unsigned int state, u16 flags); +void gfs2_rlist_free(struct gfs2_rgrp_list *rlist); +u64 gfs2_ri_total(struct gfs2_sbd *sdp); +void gfs2_rgrp_dump(struct seq_file *seq, struct gfs2_rgrpd *rgd, + const char *fs_id_buf); +int gfs2_rgrp_send_discards(struct gfs2_sbd *sdp, u64 offset, + struct buffer_head *bh, + const struct gfs2_bitmap *bi, unsigned minlen, + u64 *ptrimmed); +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) +static inline bool gfs2_rs_active(const struct gfs2_blkreserv *rs) { - return rs && !RB_EMPTY_NODE(&rs->rs_node); + return !RB_EMPTY_NODE(&rs->rs_node); } +static inline int rgrp_contains_block(struct gfs2_rgrpd *rgd, u64 block) +{ + u64 first = rgd->rd_data0; + u64 last = first + rgd->rd_data; + return first <= block && block < last; +} + +void check_and_update_goal(struct gfs2_inode *ip); + +void rgrp_lock_local(struct gfs2_rgrpd *rgd); +void rgrp_unlock_local(struct gfs2_rgrpd *rgd); + #endif /* __RGRP_DOT_H__ */ |