fs/bcachefs/io_write_types.h

   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         u64                     nocow_bucket;
  24
  25         struct bch_devs_list    failed;
  26         u8                      dev;
  27
  28         unsigned                split:1,
  29                                 bounce:1,
  30                                 put_bio:1,
  31                                 have_ioref:1,
  32                                 nocow:1,
  33                                 used_mempool:1,
  34                                 first_btree_write:1;
  35         );
  36
  37         struct bio              bio;
  38 };
  39
  40 struct bch_write_op {
  41         struct closure          cl;
  42         struct bch_fs           *c;
  43         void                    (*end_io)(struct bch_write_op *);
  44         u64                     start_time;
  45
  46         unsigned                written; /* sectors */
  47         u16                     flags;
  48         s16                     error; /* dio write path expects it to hold -ERESTARTSYS... */
  49
  50         unsigned                compression_opt:8;
  51         unsigned                csum_type:4;
  52         unsigned                nr_replicas:4;
  53         unsigned                nr_replicas_required:4;
  54         unsigned                watermark:3;
  55         unsigned                incompressible:1;
  56         unsigned                stripe_waited:1;
  57
  58         struct bch_devs_list    devs_have;
  59         u16                     target;
  60         u16                     nonce;
  61         struct bch_io_opts      opts;
  62
  63         u32                     subvol;
  64         struct bpos             pos;
  65         struct bversion         version;
  66
  67         /* For BCH_WRITE_DATA_ENCODED: */
  68         struct bch_extent_crc_unpacked crc;
  69
  70         struct write_point_specifier write_point;
  71
  72         struct write_point      *wp;
  73         struct list_head        wp_list;
  74
  75         struct disk_reservation res;
  76
  77         struct open_buckets     open_buckets;
  78
  79         u64                     new_i_size;
  80         s64                     i_sectors_delta;
  81
  82         struct bch_devs_mask    failed;
  83
  84         struct keylist          insert_keys;
  85         u64                     inline_keys[BKEY_EXTENT_U64s_MAX * 2];
  86
  87         /*
  88          * Bitmask of devices that have had nocow writes issued to them since
  89          * last flush:
  90          */
  91         struct bch_devs_mask    *devs_need_flush;
  92
  93         /* Must be last: */
  94         struct bch_write_bio    wbio;
  95 };
  96
  97 #endif /* _BCACHEFS_IO_WRITE_TYPES_H */