Move c_src dirs back to toplevel

[bcachefs-tools-debian] / c_src / libbcachefs / lru.c

diff --git a/c_src/libbcachefs/lru.c b/c_src/libbcachefs/lru.c
deleted file mode 100644 (file)
index 7a4ca5a..0000000
--- a/c_src/libbcachefs/lru.c
+++ /dev/null
@@ -1,159 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-
-#include "bcachefs.h"
-#include "alloc_background.h"
-#include "btree_iter.h"
-#include "btree_update.h"
-#include "btree_write_buffer.h"
-#include "error.h"
-#include "lru.h"
-#include "recovery.h"
-
-/* KEY_TYPE_lru is obsolete: */
-int bch2_lru_invalid(struct bch_fs *c, struct bkey_s_c k,
-                    enum bkey_invalid_flags flags,
-                    struct printbuf *err)
-{
-       int ret = 0;
-
-       bkey_fsck_err_on(!lru_pos_time(k.k->p), c, err,
-                        lru_entry_at_time_0,
-                        "lru entry at time=0");
-fsck_err:
-       return ret;
-}
-
-void bch2_lru_to_text(struct printbuf *out, struct bch_fs *c,
-                     struct bkey_s_c k)
-{
-       const struct bch_lru *lru = bkey_s_c_to_lru(k).v;
-
-       prt_printf(out, "idx %llu", le64_to_cpu(lru->idx));
-}
-
-void bch2_lru_pos_to_text(struct printbuf *out, struct bpos lru)
-{
-       prt_printf(out, "%llu:%llu -> %llu:%llu",
-                  lru_pos_id(lru),
-                  lru_pos_time(lru),
-                  u64_to_bucket(lru.offset).inode,
-                  u64_to_bucket(lru.offset).offset);
-}
-
-static int __bch2_lru_set(struct btree_trans *trans, u16 lru_id,
-                         u64 dev_bucket, u64 time, bool set)
-{
-       return time
-               ? bch2_btree_bit_mod(trans, BTREE_ID_lru,
-                                    lru_pos(lru_id, dev_bucket, time), set)
-               : 0;
-}
-
-int bch2_lru_del(struct btree_trans *trans, u16 lru_id, u64 dev_bucket, u64 time)
-{
-       return __bch2_lru_set(trans, lru_id, dev_bucket, time, KEY_TYPE_deleted);
-}
-
-int bch2_lru_set(struct btree_trans *trans, u16 lru_id, u64 dev_bucket, u64 time)
-{
-       return __bch2_lru_set(trans, lru_id, dev_bucket, time, KEY_TYPE_set);
-}
-
-int bch2_lru_change(struct btree_trans *trans,
-                   u16 lru_id, u64 dev_bucket,
-                   u64 old_time, u64 new_time)
-{
-       if (old_time == new_time)
-               return 0;
-
-       return  bch2_lru_del(trans, lru_id, dev_bucket, old_time) ?:
-               bch2_lru_set(trans, lru_id, dev_bucket, new_time);
-}
-
-static const char * const bch2_lru_types[] = {
-#define x(n) #n,
-       BCH_LRU_TYPES()
-#undef x
-       NULL
-};
-
-static int bch2_check_lru_key(struct btree_trans *trans,
-                             struct btree_iter *lru_iter,
-                             struct bkey_s_c lru_k,
-                             struct bpos *last_flushed_pos)
-{
-       struct bch_fs *c = trans->c;
-       struct btree_iter iter;
-       struct bkey_s_c k;
-       struct bch_alloc_v4 a_convert;
-       const struct bch_alloc_v4 *a;
-       struct printbuf buf1 = PRINTBUF;
-       struct printbuf buf2 = PRINTBUF;
-       enum bch_lru_type type = lru_type(lru_k);
-       struct bpos alloc_pos = u64_to_bucket(lru_k.k->p.offset);
-       u64 idx;
-       int ret;
-
-       if (fsck_err_on(!bch2_dev_bucket_exists(c, alloc_pos), c,
-                       lru_entry_to_invalid_bucket,
-                       "lru key points to nonexistent device:bucket %llu:%llu",
-                       alloc_pos.inode, alloc_pos.offset))
-               return bch2_btree_delete_at(trans, lru_iter, 0);
-
-       k = bch2_bkey_get_iter(trans, &iter, BTREE_ID_alloc, alloc_pos, 0);
-       ret = bkey_err(k);
-       if (ret)
-               goto err;
-
-       a = bch2_alloc_to_v4(k, &a_convert);
-
-       switch (type) {
-       case BCH_LRU_read:
-               idx = alloc_lru_idx_read(*a);
-               break;
-       case BCH_LRU_fragmentation:
-               idx = a->fragmentation_lru;
-               break;
-       }
-
-       if (lru_k.k->type != KEY_TYPE_set ||
-           lru_pos_time(lru_k.k->p) != idx) {
-               if (!bpos_eq(*last_flushed_pos, lru_k.k->p)) {
-                       *last_flushed_pos = lru_k.k->p;
-                       ret = bch2_btree_write_buffer_flush_sync(trans) ?:
-                               -BCH_ERR_transaction_restart_write_buffer_flush;
-                       goto out;
-               }
-
-               if (c->opts.reconstruct_alloc ||
-                   fsck_err(c, lru_entry_bad,
-                            "incorrect lru entry: lru %s time %llu\n"
-                            "  %s\n"
-                            "  for %s",
-                            bch2_lru_types[type],
-                            lru_pos_time(lru_k.k->p),
-                            (bch2_bkey_val_to_text(&buf1, c, lru_k), buf1.buf),
-                            (bch2_bkey_val_to_text(&buf2, c, k), buf2.buf)))
-                       ret = bch2_btree_delete_at(trans, lru_iter, 0);
-       }
-out:
-err:
-fsck_err:
-       bch2_trans_iter_exit(trans, &iter);
-       printbuf_exit(&buf2);
-       printbuf_exit(&buf1);
-       return ret;
-}
-
-int bch2_check_lrus(struct bch_fs *c)
-{
-       struct bpos last_flushed_pos = POS_MIN;
-       int ret = bch2_trans_run(c,
-               for_each_btree_key_commit(trans, iter,
-                               BTREE_ID_lru, POS_MIN, BTREE_ITER_PREFETCH, k,
-                               NULL, NULL, BCH_TRANS_COMMIT_no_enospc|BCH_TRANS_COMMIT_lazy_rw,
-                       bch2_check_lru_key(trans, &iter, k, &last_flushed_pos)));
-       bch_err_fn(c, ret);
-       return ret;
-
-}