diff options
Diffstat (limited to 'fs/ocfs2/suballoc.h')
| -rw-r--r-- | fs/ocfs2/suballoc.h | 45 |
1 files changed, 25 insertions, 20 deletions
diff --git a/fs/ocfs2/suballoc.h b/fs/ocfs2/suballoc.h index a36d0aa50911..bcf2ed4a8631 100644 --- a/fs/ocfs2/suballoc.h +++ b/fs/ocfs2/suballoc.h @@ -1,26 +1,10 @@ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* * suballoc.h * * Defines sub allocator api * * Copyright (C) 2003, 2004 Oracle. 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; either - * version 2 of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will 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 to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 021110-1307, USA. */ #ifndef _CHAINALLOC_H_ @@ -45,6 +29,7 @@ struct ocfs2_alloc_context { #define OCFS2_AC_USE_MAIN 2 #define OCFS2_AC_USE_INODE 3 #define OCFS2_AC_USE_META 4 +#define OCFS2_AC_USE_MAIN_DISCONTIG 5 u32 ac_which; /* these are used by the chain search */ @@ -54,7 +39,7 @@ struct ocfs2_alloc_context { u64 ac_last_group; u64 ac_max_block; /* Highest block number to allocate. 0 is - is the same as ~0 - unlimited */ + the same as ~0 - unlimited */ int ac_find_loc_only; /* hack for reflink operation ordering */ struct ocfs2_suballoc_result *ac_find_loc_priv; /* */ @@ -86,6 +71,26 @@ int ocfs2_reserve_clusters(struct ocfs2_super *osb, u32 bits_wanted, struct ocfs2_alloc_context **ac); +int ocfs2_alloc_dinode_update_counts(struct inode *inode, + handle_t *handle, + struct buffer_head *di_bh, + u32 num_bits, + u16 chain); +void ocfs2_rollback_alloc_dinode_counts(struct inode *inode, + struct buffer_head *di_bh, + u32 num_bits, + u16 chain); +u16 ocfs2_find_max_contig_free_bits(void *bitmap, + u16 total_bits, u16 start); +int ocfs2_block_group_set_bits(handle_t *handle, + struct inode *alloc_inode, + struct ocfs2_group_desc *bg, + struct buffer_head *group_bh, + unsigned int bit_off, + unsigned int num_bits, + unsigned int max_contig_bits, + int fastpath); + int ocfs2_claim_metadata(handle_t *handle, struct ocfs2_alloc_context *ac, u32 bits_wanted, @@ -106,7 +111,7 @@ int ocfs2_claim_clusters(handle_t *handle, u32 *cluster_start, u32 *num_clusters); /* - * Use this variant of ocfs2_claim_clusters to specify a maxiumum + * Use this variant of ocfs2_claim_clusters to specify a maximum * number of clusters smaller than the allocation reserved. */ int __ocfs2_claim_clusters(handle_t *handle, |