xref: /linux/fs/bcachefs/io_write_types.h (revision d642ef71)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _BCACHEFS_IO_WRITE_TYPES_H
3 #define _BCACHEFS_IO_WRITE_TYPES_H
4 
5 #include "alloc_types.h"
6 #include "btree_types.h"
7 #include "buckets_types.h"
8 #include "extents_types.h"
9 #include "keylist_types.h"
10 #include "opts.h"
11 #include "super_types.h"
12 
13 #include <linux/llist.h>
14 #include <linux/workqueue.h>
15 
16 struct bch_write_bio {
17 	struct_group(wbio,
18 	struct bch_fs		*c;
19 	struct bch_write_bio	*parent;
20 
21 	u64			submit_time;
22 	u64			inode_offset;
23 
24 	struct bch_devs_list	failed;
25 	u8			dev;
26 
27 	unsigned		split:1,
28 				bounce:1,
29 				put_bio:1,
30 				have_ioref:1,
31 				nocow:1,
32 				used_mempool:1,
33 				first_btree_write:1;
34 	);
35 
36 	struct bio		bio;
37 };
38 
39 struct bch_write_op {
40 	struct closure		cl;
41 	struct bch_fs		*c;
42 	void			(*end_io)(struct bch_write_op *);
43 	u64			start_time;
44 
45 	unsigned		written; /* sectors */
46 	u16			flags;
47 	s16			error; /* dio write path expects it to hold -ERESTARTSYS... */
48 
49 	unsigned		compression_opt:8;
50 	unsigned		csum_type:4;
51 	unsigned		nr_replicas:4;
52 	unsigned		nr_replicas_required:4;
53 	unsigned		watermark:3;
54 	unsigned		incompressible:1;
55 	unsigned		stripe_waited:1;
56 
57 	struct bch_devs_list	devs_have;
58 	u16			target;
59 	u16			nonce;
60 	struct bch_io_opts	opts;
61 
62 	u32			subvol;
63 	struct bpos		pos;
64 	struct bversion		version;
65 
66 	/* For BCH_WRITE_DATA_ENCODED: */
67 	struct bch_extent_crc_unpacked crc;
68 
69 	struct write_point_specifier write_point;
70 
71 	struct write_point	*wp;
72 	struct list_head	wp_list;
73 
74 	struct disk_reservation	res;
75 
76 	struct open_buckets	open_buckets;
77 
78 	u64			new_i_size;
79 	s64			i_sectors_delta;
80 
81 	struct bch_devs_mask	failed;
82 
83 	struct keylist		insert_keys;
84 	u64			inline_keys[BKEY_EXTENT_U64s_MAX * 2];
85 
86 	/*
87 	 * Bitmask of devices that have had nocow writes issued to them since
88 	 * last flush:
89 	 */
90 	struct bch_devs_mask	*devs_need_flush;
91 
92 	/* Must be last: */
93 	struct bch_write_bio	wbio;
94 };
95 
96 #endif /* _BCACHEFS_IO_WRITE_TYPES_H */
97