From b5fd066153c40a70a29caa1ea7987723ab687763 Mon Sep 17 00:00:00 2001 From: Kent Overstreet Date: Tue, 16 Jan 2024 17:00:02 -0500 Subject: Move c_src dirs back to toplevel We just wanted c sourcefiles out of the top level, not c source directories. Signed-off-by: Kent Overstreet --- c_src/libbcachefs/lru.c | 159 ------------------------------------------------ 1 file changed, 159 deletions(-) delete mode 100644 c_src/libbcachefs/lru.c (limited to 'c_src/libbcachefs/lru.c') diff --git a/c_src/libbcachefs/lru.c b/c_src/libbcachefs/lru.c deleted file mode 100644 index 7a4ca5a2..00000000 --- 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-#include "btree_write_buffer.h" -#include "error.h" -#include "lru.h" -#include "recovery.h" - -/* KEY_TYPE_lru is obsolete: */ -int bch2_lru_invalid(struct bch_fs *c, struct bkey_s_c k, - enum bkey_invalid_flags flags, - struct printbuf *err) -{ - int ret = 0; - -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; - -} -- cgit v1.2.3