diff options
Diffstat (limited to 'fs/bcachefs/move.c')
| -rw-r--r-- | fs/bcachefs/move.c | 126 |
1 files changed, 41 insertions, 85 deletions
diff --git a/fs/bcachefs/move.c b/fs/bcachefs/move.c index ab749bf2fcbc..54830ee0ed88 100644 --- a/fs/bcachefs/move.c +++ b/fs/bcachefs/move.c @@ -49,17 +49,6 @@ static void trace_move_extent_read2(struct bch_fs *c, struct bkey_s_c k) } } -static void trace_move_extent_alloc_mem_fail2(struct bch_fs *c, struct bkey_s_c k) -{ - if (trace_move_extent_alloc_mem_fail_enabled()) { - struct printbuf buf = PRINTBUF; - - bch2_bkey_val_to_text(&buf, c, k); - trace_move_extent_alloc_mem_fail(c, buf.buf); - printbuf_exit(&buf); - } -} - struct moving_io { struct list_head read_list; struct list_head io_list; @@ -163,12 +152,18 @@ void bch2_move_ctxt_wait_for_io(struct moving_context *ctxt) atomic_read(&ctxt->write_sectors) != sectors_pending); } +static void bch2_moving_ctxt_flush_all(struct moving_context *ctxt) +{ + move_ctxt_wait_event(ctxt, list_empty(&ctxt->reads)); + bch2_trans_unlock_long(ctxt->trans); + closure_sync(&ctxt->cl); +} + void bch2_moving_ctxt_exit(struct moving_context *ctxt) { struct bch_fs *c = ctxt->trans->c; - move_ctxt_wait_event(ctxt, list_empty(&ctxt->reads)); - closure_sync(&ctxt->cl); + bch2_moving_ctxt_flush_all(ctxt); EBUG_ON(atomic_read(&ctxt->write_sectors)); EBUG_ON(atomic_read(&ctxt->write_ios)); @@ -223,49 +218,6 @@ void bch2_move_stats_init(struct bch_move_stats *stats, char *name) scnprintf(stats->name, sizeof(stats->name), "%s", name); } -static int bch2_extent_drop_ptrs(struct btree_trans *trans, - struct btree_iter *iter, - struct bkey_s_c k, - struct data_update_opts data_opts) -{ - struct bch_fs *c = trans->c; - struct bkey_i *n; - int ret; - - n = bch2_bkey_make_mut_noupdate(trans, k); - ret = PTR_ERR_OR_ZERO(n); - if (ret) - return ret; - - while (data_opts.kill_ptrs) { - unsigned i = 0, drop = __fls(data_opts.kill_ptrs); - struct bch_extent_ptr *ptr; - - bch2_bkey_drop_ptrs(bkey_i_to_s(n), ptr, i++ == drop); - data_opts.kill_ptrs ^= 1U << drop; - } - - /* - * If the new extent no longer has any pointers, bch2_extent_normalize() - * will do the appropriate thing with it (turning it into a - * KEY_TYPE_error key, or just a discard if it was a cached extent) - */ - bch2_extent_normalize(c, bkey_i_to_s(n)); - - /* - * Since we're not inserting through an extent iterator - * (BTREE_ITER_ALL_SNAPSHOTS iterators aren't extent iterators), - * we aren't using the extent overwrite path to delete, we're - * just using the normal key deletion path: - */ - if (bkey_deleted(&n->k)) - n->k.size = 0; - - return bch2_trans_relock(trans) ?: - bch2_trans_update(trans, iter, n, BTREE_UPDATE_INTERNAL_SNAPSHOT_NODE) ?: - bch2_trans_commit(trans, NULL, NULL, BTREE_INSERT_NOFAIL); -} - int bch2_move_extent(struct moving_context *ctxt, struct move_bucket_in_flight *bucket_in_flight, struct btree_iter *iter, @@ -335,19 +287,11 @@ int bch2_move_extent(struct moving_context *ctxt, io->rbio.bio.bi_iter.bi_sector = bkey_start_offset(k.k); io->rbio.bio.bi_end_io = move_read_endio; - ret = bch2_data_update_init(trans, ctxt, &io->write, ctxt->wp, + ret = bch2_data_update_init(trans, iter, ctxt, &io->write, ctxt->wp, io_opts, data_opts, iter->btree_id, k); - if (ret && ret != -BCH_ERR_unwritten_extent_update) + if (ret) goto err_free_pages; - if (ret == -BCH_ERR_unwritten_extent_update) { - bch2_update_unwritten_extent(trans, &io->write); - move_free(io); - return 0; - } - - BUG_ON(ret); - io->write.op.end_io = move_write_done; if (ctxt->rate) @@ -391,8 +335,23 @@ err_free_pages: err_free: kfree(io); err: - this_cpu_inc(c->counters[BCH_COUNTER_move_extent_alloc_mem_fail]); - trace_move_extent_alloc_mem_fail2(c, k); + if (ret == -BCH_ERR_data_update_done) + return 0; + + if (bch2_err_matches(ret, EROFS) || + bch2_err_matches(ret, BCH_ERR_transaction_restart)) + return ret; + + this_cpu_inc(c->counters[BCH_COUNTER_move_extent_start_fail]); + if (trace_move_extent_start_fail_enabled()) { + struct printbuf buf = PRINTBUF; + + bch2_bkey_val_to_text(&buf, c, k); + prt_str(&buf, ": "); + prt_str(&buf, bch2_err_str(ret)); + trace_move_extent_start_fail(c, buf.buf); + printbuf_exit(&buf); + } return ret; } @@ -482,37 +441,30 @@ int bch2_move_get_io_opts_one(struct btree_trans *trans, int bch2_move_ratelimit(struct moving_context *ctxt) { struct bch_fs *c = ctxt->trans->c; + bool is_kthread = current->flags & PF_KTHREAD; u64 delay; - if (ctxt->wait_on_copygc && !c->copygc_running) { - bch2_trans_unlock_long(ctxt->trans); + if (ctxt->wait_on_copygc && c->copygc_running) { + bch2_moving_ctxt_flush_all(ctxt); wait_event_killable(c->copygc_running_wq, !c->copygc_running || - kthread_should_stop()); + (is_kthread && kthread_should_stop())); } do { delay = ctxt->rate ? bch2_ratelimit_delay(ctxt->rate) : 0; - - if (delay) { - if (delay > HZ / 10) - bch2_trans_unlock_long(ctxt->trans); - else - bch2_trans_unlock(ctxt->trans); - set_current_state(TASK_INTERRUPTIBLE); - } - - if ((current->flags & PF_KTHREAD) && kthread_should_stop()) { - __set_current_state(TASK_RUNNING); + if (is_kthread && kthread_should_stop()) return 1; - } if (delay) - schedule_timeout(delay); + move_ctxt_wait_event_timeout(ctxt, + freezing(current) || + (is_kthread && kthread_should_stop()), + delay); if (unlikely(freezing(current))) { - move_ctxt_wait_event(ctxt, list_empty(&ctxt->reads)); + bch2_moving_ctxt_flush_all(ctxt); try_to_freeze(); } } while (delay); @@ -683,6 +635,7 @@ int __bch2_evacuate_bucket(struct moving_context *ctxt, { struct btree_trans *trans = ctxt->trans; struct bch_fs *c = trans->c; + bool is_kthread = current->flags & PF_KTHREAD; struct bch_io_opts io_opts = bch2_opts_to_inode_opts(c->opts); struct btree_iter iter; struct bkey_buf sk; @@ -728,6 +681,9 @@ int __bch2_evacuate_bucket(struct moving_context *ctxt, } while (!(ret = bch2_move_ratelimit(ctxt))) { + if (is_kthread && kthread_should_stop()) + break; + bch2_trans_begin(trans); ret = bch2_get_next_backpointer(trans, bucket, gen, |