xref: /linux/fs/ocfs2/localalloc.h (revision 37744feebc086908fd89760650f458ab19071750)
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /* -*- mode: c; c-basic-offset: 8; -*-
3  * vim: noexpandtab sw=8 ts=8 sts=0:
4  *
5  * localalloc.h
6  *
7  * Function prototypes
8  *
9  * Copyright (C) 2002, 2004 Oracle.  All rights reserved.
10  */
11 
12 #ifndef OCFS2_LOCALALLOC_H
13 #define OCFS2_LOCALALLOC_H
14 
15 int ocfs2_load_local_alloc(struct ocfs2_super *osb);
16 
17 void ocfs2_shutdown_local_alloc(struct ocfs2_super *osb);
18 
19 void ocfs2_la_set_sizes(struct ocfs2_super *osb, int requested_mb);
20 unsigned int ocfs2_la_default_mb(struct ocfs2_super *osb);
21 
22 int ocfs2_begin_local_alloc_recovery(struct ocfs2_super *osb,
23 				     int node_num,
24 				     struct ocfs2_dinode **alloc_copy);
25 
26 int ocfs2_complete_local_alloc_recovery(struct ocfs2_super *osb,
27 					struct ocfs2_dinode *alloc);
28 
29 int ocfs2_alloc_should_use_local(struct ocfs2_super *osb,
30 				 u64 bits);
31 
32 struct ocfs2_alloc_context;
33 int ocfs2_reserve_local_alloc_bits(struct ocfs2_super *osb,
34 				   u32 bits_wanted,
35 				   struct ocfs2_alloc_context *ac);
36 
37 int ocfs2_claim_local_alloc_bits(struct ocfs2_super *osb,
38 				 handle_t *handle,
39 				 struct ocfs2_alloc_context *ac,
40 				 u32 bits_wanted,
41 				 u32 *bit_off,
42 				 u32 *num_bits);
43 
44 int ocfs2_free_local_alloc_bits(struct ocfs2_super *osb,
45 				handle_t *handle,
46 				struct ocfs2_alloc_context *ac,
47 				u32 bit_off,
48 				u32 num_bits);
49 
50 void ocfs2_local_alloc_seen_free_bits(struct ocfs2_super *osb,
51 				      unsigned int num_clusters);
52 void ocfs2_la_enable_worker(struct work_struct *work);
53 
54 #endif /* OCFS2_LOCALALLOC_H */
55