Move c_src dirs back to toplevel

[bcachefs-tools-debian] / c_src / libbcachefs / io_read.h

diff --git a/c_src/libbcachefs/io_read.h b/c_src/libbcachefs/io_read.h
deleted file mode 100644 (file)
index d9c18bb..0000000
--- a/c_src/libbcachefs/io_read.h
+++ /dev/null
@@ -1,158 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _BCACHEFS_IO_READ_H
-#define _BCACHEFS_IO_READ_H
-
-#include "bkey_buf.h"
-
-struct bch_read_bio {
-       struct bch_fs           *c;
-       u64                     start_time;
-       u64                     submit_time;
-
-       /*
-        * Reads will often have to be split, and if the extent being read from
-        * was checksummed or compressed we'll also have to allocate bounce
-        * buffers and copy the data back into the original bio.
-        *
-        * If we didn't have to split, we have to save and restore the original
-        * bi_end_io - @split below indicates which:
-        */
-       union {
-       struct bch_read_bio     *parent;
-       bio_end_io_t            *end_io;
-       };
-
-       /*
-        * Saved copy of bio->bi_iter, from submission time - allows us to
-        * resubmit on IO error, and also to copy data back to the original bio
-        * when we're bouncing:
-        */
-       struct bvec_iter        bvec_iter;
-
-       unsigned                offset_into_extent;
-
-       u16                     flags;
-       union {
-       struct {
-       u16                     bounce:1,
-                               split:1,
-                               kmalloc:1,
-                               have_ioref:1,
-                               narrow_crcs:1,
-                               hole:1,
-                               retry:2,
-                               context:2;
-       };
-       u16                     _state;
-       };
-
-       struct bch_devs_list    devs_have;
-
-       struct extent_ptr_decoded pick;
-
-       /*
-        * pos we read from - different from data_pos for indirect extents:
-        */
-       u32                     subvol;
-       struct bpos             read_pos;
-
-       /*
-        * start pos of data we read (may not be pos of data we want) - for
-        * promote, narrow extents paths:
-        */
-       enum btree_id           data_btree;
-       struct bpos             data_pos;
-       struct bversion         version;
-
-       struct promote_op       *promote;
-
-       struct bch_io_opts      opts;
-
-       struct work_struct      work;
-
-       struct bio              bio;
-};
-
-#define to_rbio(_bio)          container_of((_bio), struct bch_read_bio, bio)
-
-struct bch_devs_mask;
-struct cache_promote_op;
-struct extent_ptr_decoded;
-
-int __bch2_read_indirect_extent(struct btree_trans *, unsigned *,
-                               struct bkey_buf *);
-
-static inline int bch2_read_indirect_extent(struct btree_trans *trans,
-                                           enum btree_id *data_btree,
-                                           unsigned *offset_into_extent,
-                                           struct bkey_buf *k)
-{
-       if (k->k->k.type != KEY_TYPE_reflink_p)
-               return 0;
-
-       *data_btree = BTREE_ID_reflink;
-       return __bch2_read_indirect_extent(trans, offset_into_extent, k);
-}
-
-enum bch_read_flags {
-       BCH_READ_RETRY_IF_STALE         = 1 << 0,
-       BCH_READ_MAY_PROMOTE            = 1 << 1,
-       BCH_READ_USER_MAPPED            = 1 << 2,
-       BCH_READ_NODECODE               = 1 << 3,
-       BCH_READ_LAST_FRAGMENT          = 1 << 4,
-
-       /* internal: */
-       BCH_READ_MUST_BOUNCE            = 1 << 5,
-       BCH_READ_MUST_CLONE             = 1 << 6,
-       BCH_READ_IN_RETRY               = 1 << 7,
-};
-
-int __bch2_read_extent(struct btree_trans *, struct bch_read_bio *,
-                      struct bvec_iter, struct bpos, enum btree_id,
-                      struct bkey_s_c, unsigned,
-                      struct bch_io_failures *, unsigned);
-
-static inline void bch2_read_extent(struct btree_trans *trans,
-                       struct bch_read_bio *rbio, struct bpos read_pos,
-                       enum btree_id data_btree, struct bkey_s_c k,
-                       unsigned offset_into_extent, unsigned flags)
-{
-       __bch2_read_extent(trans, rbio, rbio->bio.bi_iter, read_pos,
-                          data_btree, k, offset_into_extent, NULL, flags);
-}
-
-void __bch2_read(struct bch_fs *, struct bch_read_bio *, struct bvec_iter,
-                subvol_inum, struct bch_io_failures *, unsigned flags);
-
-static inline void bch2_read(struct bch_fs *c, struct bch_read_bio *rbio,
-                            subvol_inum inum)
-{
-       struct bch_io_failures failed = { .nr = 0 };
-
-       BUG_ON(rbio->_state);
-
-       rbio->c = c;
-       rbio->start_time = local_clock();
-       rbio->subvol = inum.subvol;
-
-       __bch2_read(c, rbio, rbio->bio.bi_iter, inum, &failed,
-                   BCH_READ_RETRY_IF_STALE|
-                   BCH_READ_MAY_PROMOTE|
-                   BCH_READ_USER_MAPPED);
-}
-
-static inline struct bch_read_bio *rbio_init(struct bio *bio,
-                                            struct bch_io_opts opts)
-{
-       struct bch_read_bio *rbio = to_rbio(bio);
-
-       rbio->_state    = 0;
-       rbio->promote   = NULL;
-       rbio->opts      = opts;
-       return rbio;
-}
-
-void bch2_fs_io_read_exit(struct bch_fs *);
-int bch2_fs_io_read_init(struct bch_fs *);
-
-#endif /* _BCACHEFS_IO_READ_H */