]> git.sesse.net Git - bcachefs-tools-debian/blobdiff - libbcachefs/super.c
Update bcachefs sources to 0e705f5944 fixup! bcachefs: Refactor bch2_btree_node_mem_a...
[bcachefs-tools-debian] / libbcachefs / super.c
index 46947163a8dcead4ca6d189127d2929d7f16cbba..4a071711d363bcaa80cea1f982cf3ffeb287f4cb 100644 (file)
@@ -199,17 +199,9 @@ static void __bch2_fs_read_only(struct bch_fs *c)
         */
        bch2_journal_flush_all_pins(&c->journal);
 
-       /*
-        * If the allocator threads didn't all start up, the btree updates to
-        * write out alloc info aren't going to work:
-        */
-       if (!test_bit(BCH_FS_ALLOCATOR_RUNNING, &c->flags))
-               goto nowrote_alloc;
-
        bch_verbose(c, "flushing journal and stopping allocators");
 
        bch2_journal_flush_all_pins(&c->journal);
-       set_bit(BCH_FS_ALLOCATOR_STOPPING, &c->flags);
 
        do {
                clean_passes++;
@@ -234,17 +226,11 @@ static void __bch2_fs_read_only(struct bch_fs *c)
        bch_verbose(c, "flushing journal and stopping allocators complete");
 
        set_bit(BCH_FS_ALLOC_CLEAN, &c->flags);
-nowrote_alloc:
+
        closure_wait_event(&c->btree_interior_update_wait,
                           !bch2_btree_interior_updates_nr_pending(c));
        flush_work(&c->btree_interior_update_work);
 
-       for_each_member_device(ca, c, i)
-               bch2_dev_allocator_stop(ca);
-
-       clear_bit(BCH_FS_ALLOCATOR_RUNNING, &c->flags);
-       clear_bit(BCH_FS_ALLOCATOR_STOPPING, &c->flags);
-
        bch2_fs_journal_stop(&c->journal);
 
        /*
@@ -280,10 +266,6 @@ void bch2_fs_read_only(struct bch_fs *c)
        /*
         * Block new foreground-end write operations from starting - any new
         * writes will return -EROFS:
-        *
-        * (This is really blocking new _allocations_, writes to previously
-        * allocated space can still happen until stopping the allocator in
-        * bch2_dev_allocator_stop()).
         */
        percpu_ref_kill(&c->writes);
 
@@ -412,19 +394,7 @@ static int __bch2_fs_read_write(struct bch_fs *c, bool early)
                bch2_dev_allocator_add(c, ca);
        bch2_recalc_capacity(c);
 
-       for_each_rw_member(ca, c, i) {
-               ret = bch2_dev_allocator_start(ca);
-               if (ret) {
-                       bch_err(c, "error starting allocator threads");
-                       percpu_ref_put(&ca->io_ref);
-                       goto err;
-               }
-       }
-
-       set_bit(BCH_FS_ALLOCATOR_RUNNING, &c->flags);
-
-       for_each_rw_member(ca, c, i)
-               bch2_wake_allocator(ca);
+       bch2_do_discards(c);
 
        if (!early) {
                ret = bch2_fs_read_write_late(c);
@@ -892,7 +862,7 @@ static void print_mount_opts(struct bch_fs *c)
        if (!p.pos)
                pr_buf(&p, "(null)");
 
-       bch_info(c, "mounted with opts: %s", p.buf);
+       bch_info(c, "mounted version=%s opts=%s", bch2_metadata_versions[c->sb.version], p.buf);
        printbuf_exit(&p);
 }
 
@@ -941,20 +911,6 @@ int bch2_fs_start(struct bch_fs *c)
 
        set_bit(BCH_FS_STARTED, &c->flags);
 
-       /*
-        * Allocator threads don't start filling copygc reserve until after we
-        * set BCH_FS_STARTED - wake them now:
-        *
-        * XXX ugly hack:
-        * Need to set ca->allocator_state here instead of relying on the
-        * allocator threads to do it to avoid racing with the copygc threads
-        * checking it and thinking they have no alloc reserve:
-        */
-       for_each_online_member(ca, c, i) {
-               ca->allocator_state = ALLOCATOR_running;
-               bch2_wake_allocator(ca);
-       }
-
        if (c->opts.read_only || c->opts.nochanges) {
                bch2_fs_read_only(c);
        } else {
@@ -1046,8 +1002,6 @@ static void bch2_dev_release(struct kobject *kobj)
 
 static void bch2_dev_free(struct bch_dev *ca)
 {
-       bch2_dev_allocator_stop(ca);
-
        cancel_work_sync(&ca->io_error_work);
 
        if (ca->kobj.state_in_sysfs &&
@@ -1162,6 +1116,9 @@ static struct bch_dev *__bch2_dev_alloc(struct bch_fs *c,
        ca->mi = bch2_mi_to_cpu(member);
        ca->uuid = member->uuid;
 
+       ca->nr_btree_reserve = DIV_ROUND_UP(BTREE_NODE_RESERVE,
+                            ca->mi.bucket_size / btree_sectors(c));
+
        if (percpu_ref_init(&ca->ref, bch2_dev_ref_complete,
                            0, GFP_KERNEL) ||
            percpu_ref_init(&ca->io_ref, bch2_dev_io_ref_complete,
@@ -1211,12 +1168,6 @@ static int bch2_dev_alloc(struct bch_fs *c, unsigned dev_idx)
 
        ca->fs = c;
 
-       if (ca->mi.state == BCH_MEMBER_STATE_rw &&
-           bch2_dev_allocator_start(ca)) {
-               bch2_dev_free(ca);
-               goto err;
-       }
-
        bch2_dev_attach(c, ca, dev_idx);
 out:
        pr_verbose_init(c->opts, "ret %i", ret);
@@ -1402,14 +1353,13 @@ static void __bch2_dev_read_only(struct bch_fs *c, struct bch_dev *ca)
        /*
         * The allocator thread itself allocates btree nodes, so stop it first:
         */
-       bch2_dev_allocator_stop(ca);
        bch2_dev_allocator_remove(c, ca);
        bch2_dev_journal_stop(&c->journal, ca);
 
        bch2_copygc_start(c);
 }
 
-static int __bch2_dev_read_write(struct bch_fs *c, struct bch_dev *ca)
+static void __bch2_dev_read_write(struct bch_fs *c, struct bch_dev *ca)
 {
        lockdep_assert_held(&c->state_lock);
 
@@ -1417,8 +1367,6 @@ static int __bch2_dev_read_write(struct bch_fs *c, struct bch_dev *ca)
 
        bch2_dev_allocator_add(c, ca);
        bch2_recalc_capacity(c);
-
-       return bch2_dev_allocator_start(ca);
 }
 
 int __bch2_dev_set_state(struct bch_fs *c, struct bch_dev *ca,
@@ -1445,7 +1393,7 @@ int __bch2_dev_set_state(struct bch_fs *c, struct bch_dev *ca,
        mutex_unlock(&c->sb_lock);
 
        if (new_state == BCH_MEMBER_STATE_rw)
-               ret = __bch2_dev_read_write(c, ca);
+               __bch2_dev_read_write(c, ca);
 
        rebalance_wakeup(c);
 
@@ -1468,30 +1416,20 @@ int bch2_dev_set_state(struct bch_fs *c, struct bch_dev *ca,
 
 static int bch2_dev_remove_alloc(struct bch_fs *c, struct bch_dev *ca)
 {
-       struct btree_trans trans;
-       size_t i;
+       struct bpos start       = POS(ca->dev_idx, 0);
+       struct bpos end         = POS(ca->dev_idx, U64_MAX);
        int ret;
 
-       bch2_trans_init(&trans, c, 0, 0);
-
-       for (i = 0; i < ca->mi.nbuckets; i++) {
-               ret = lockrestart_do(&trans,
-                       bch2_btree_key_cache_flush(&trans,
-                               BTREE_ID_alloc, POS(ca->dev_idx, i)));
-               if (ret)
-                       break;
-       }
-       bch2_trans_exit(&trans);
-
-       if (ret) {
+       ret =   bch2_btree_delete_range(c, BTREE_ID_alloc, start, end,
+                                       BTREE_TRIGGER_NORUN, NULL) ?:
+               bch2_btree_delete_range(c, BTREE_ID_freespace, start, end,
+                                       BTREE_TRIGGER_NORUN, NULL) ?:
+               bch2_btree_delete_range(c, BTREE_ID_need_discard, start, end,
+                                       BTREE_TRIGGER_NORUN, NULL);
+       if (ret)
                bch_err(c, "error %i removing dev alloc info", ret);
-               return ret;
-       }
 
-       return bch2_btree_delete_range(c, BTREE_ID_alloc,
-                                      POS(ca->dev_idx, 0),
-                                      POS(ca->dev_idx + 1, 0),
-                                      0, NULL);
+       return ret;
 }
 
 int bch2_dev_remove(struct bch_fs *c, struct bch_dev *ca, int flags)
@@ -1709,15 +1647,16 @@ have_slot:
                goto err_late;
        }
 
+       ret = bch2_fs_freespace_init(c);
+       if (ret) {
+               bch_err(c, "device add error: error initializing free space: %i", ret);
+               goto err_late;
+       }
+
        ca->new_fs_bucket_idx = 0;
 
-       if (ca->mi.state == BCH_MEMBER_STATE_rw) {
-               ret = __bch2_dev_read_write(c, ca);
-               if (ret) {
-                       bch_err(c, "device add error: error going RW on new device: %i", ret);
-                       goto err_late;
-               }
-       }
+       if (ca->mi.state == BCH_MEMBER_STATE_rw)
+               __bch2_dev_read_write(c, ca);
 
        up_write(&c->state_lock);
        return 0;
@@ -1777,11 +1716,8 @@ int bch2_dev_online(struct bch_fs *c, const char *path)
                goto err;
        }
 
-       if (ca->mi.state == BCH_MEMBER_STATE_rw) {
-               ret = __bch2_dev_read_write(c, ca);
-               if (ret)
-                       goto err;
-       }
+       if (ca->mi.state == BCH_MEMBER_STATE_rw)
+               __bch2_dev_read_write(c, ca);
 
        mutex_lock(&c->sb_lock);
        mi = bch2_sb_get_members(c->disk_sb.sb);