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bcachefs: convert fcollapse to bch2_extent_update()
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
parent
5f461e01b8
commit
8ef231bd51
1 changed files with 30 additions and 37 deletions
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@ -2424,7 +2424,6 @@ static long bch2_fcollapse(struct bch_inode_info *inode,
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struct btree_iter *src, *dst;
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BKEY_PADDED(k) copy;
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struct bkey_s_c k;
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struct i_sectors_hook i_sectors_hook = i_sectors_hook_init(inode, 0);
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loff_t new_size;
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int ret;
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@ -2432,16 +2431,7 @@ static long bch2_fcollapse(struct bch_inode_info *inode,
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return -EINVAL;
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bch2_trans_init(&trans, c);
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dst = bch2_trans_get_iter(&trans, BTREE_ID_EXTENTS,
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POS(inode->v.i_ino, offset >> 9),
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BTREE_ITER_SLOTS|BTREE_ITER_INTENT);
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BUG_ON(IS_ERR(dst));
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/* position will be set from dst iter's position: */
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src = bch2_trans_get_iter(&trans, BTREE_ID_EXTENTS, POS_MIN,
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BTREE_ITER_SLOTS);
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BUG_ON(IS_ERR(src));
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bch2_trans_preload_iters(&trans);
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/*
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* We need i_mutex to keep the page cache consistent with the extents
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@ -2466,15 +2456,24 @@ static long bch2_fcollapse(struct bch_inode_info *inode,
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if (ret)
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goto err;
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ret = i_sectors_dirty_start(c, &i_sectors_hook);
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if (ret)
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goto err;
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dst = bch2_trans_get_iter(&trans, BTREE_ID_EXTENTS,
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POS(inode->v.i_ino, offset >> 9),
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BTREE_ITER_SLOTS|BTREE_ITER_INTENT);
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BUG_ON(IS_ERR_OR_NULL(dst));
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src = bch2_trans_get_iter(&trans, BTREE_ID_EXTENTS,
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POS_MIN, BTREE_ITER_SLOTS);
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BUG_ON(IS_ERR_OR_NULL(src));
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while (bkey_cmp(dst->pos,
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POS(inode->v.i_ino,
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round_up(new_size, PAGE_SIZE) >> 9)) < 0) {
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struct disk_reservation disk_res;
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ret = bch2_btree_iter_traverse(dst);
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if (ret)
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goto btree_iter_err;
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bch2_btree_iter_set_pos(src,
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POS(dst->pos.inode, dst->pos.offset + (len >> 9)));
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@ -2487,10 +2486,6 @@ static long bch2_fcollapse(struct bch_inode_info *inode,
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bch2_cut_front(src->pos, ©.k);
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copy.k.k.p.offset -= len >> 9;
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ret = bch2_btree_iter_traverse(dst);
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if (ret)
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goto btree_iter_err;
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bch2_extent_trim_atomic(©.k, dst);
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BUG_ON(bkey_cmp(dst->pos, bkey_start_pos(©.k.k)));
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@ -2500,19 +2495,16 @@ static long bch2_fcollapse(struct bch_inode_info *inode,
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BCH_DISK_RESERVATION_NOFAIL);
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BUG_ON(ret);
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ret = bch2_btree_insert_at(c, &disk_res, &i_sectors_hook.hook,
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&inode->ei_journal_seq,
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BTREE_INSERT_ATOMIC|
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BTREE_INSERT_NOFAIL,
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BTREE_INSERT_ENTRY(dst, ©.k));
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ret = bch2_extent_update(&trans, inode,
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&disk_res, NULL,
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dst, ©.k,
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0, true, true, NULL);
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bch2_disk_reservation_put(c, &disk_res);
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btree_iter_err:
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if (ret == -EINTR)
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ret = 0;
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if (ret) {
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bch2_trans_exit(&trans);
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goto err_put_sectors_dirty;
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}
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if (ret)
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goto err;
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/*
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* XXX: if we error here we've left data with multiple
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* pointers... which isn't a _super_ serious problem...
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@ -2520,20 +2512,21 @@ static long bch2_fcollapse(struct bch_inode_info *inode,
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bch2_btree_iter_cond_resched(src);
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}
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bch2_trans_unlock(&trans);
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bch2_trans_exit(&trans);
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ret = bch2_inode_truncate(c, inode->v.i_ino,
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round_up(new_size, block_bytes(c)) >> 9,
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&i_sectors_hook.hook,
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&inode->ei_journal_seq);
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ret = __bch2_fpunch(c, inode,
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round_up(new_size, block_bytes(c)) >> 9,
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U64_MAX, &inode->ei_journal_seq);
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if (ret)
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goto err_put_sectors_dirty;
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goto err;
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i_sectors_hook.new_i_size = new_size;
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err_put_sectors_dirty:
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ret = i_sectors_dirty_finish(c, &i_sectors_hook) ?: ret;
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i_size_write(&inode->v, new_size);
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mutex_lock(&inode->ei_update_lock);
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ret = bch2_write_inode_size(c, inode, new_size,
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ATTR_MTIME|ATTR_CTIME);
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mutex_unlock(&inode->ei_update_lock);
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err:
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bch2_trans_exit(&trans);
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bch2_pagecache_block_put(&inode->ei_pagecache_lock);
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inode_unlock(&inode->v);
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return ret;
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