forked from vitalif/vitastor
Fix shared file overlap, add FIXMEs
parent
88f9d18be3
commit
d03f19ebe5
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@ -153,6 +153,7 @@ void cli_tool_t::loop_and_wait(std::function<bool(cli_result_t &)> loop_cb, std:
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ringloop->unregister_consumer(&looper->consumer);
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looper->loop_cb = NULL;
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looper->complete_cb(looper->result);
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ringloop->submit();
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delete looper;
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return;
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}
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@ -25,6 +25,7 @@ struct nfs_kv_setattr_state
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static void nfs_kv_continue_setattr(nfs_kv_setattr_state *st, int state)
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{
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// FIXME: NFS client does a lot of setattr calls, so maybe process them asynchronously
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if (state == 0) {}
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else if (state == 1) goto resume_1;
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else if (state == 2) goto resume_2;
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@ -50,8 +51,7 @@ resume_1:
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cb(st->res);
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return;
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}
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if (st->ientry["type"].string_value() == "link" ||
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st->ientry["type"].string_value() != "file" &&
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if (st->ientry["type"].string_value() != "file" &&
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st->ientry["type"].string_value() != "" &&
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!st->set_attrs["size"].is_null())
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{
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@ -151,9 +151,11 @@ static void nfs_do_write(uint64_t ino, uint64_t offset, uint64_t size, std::func
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static void nfs_do_unshare_write(nfs_kv_write_state *st, int state)
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{
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nfs_do_write(st->ino, 0, st->aligned_size - sizeof(shared_file_header_t), [&](cluster_op_t *op)
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uint64_t unshare_size = (st->ientry["size"].uint64_value() + st->self->parent->pool_alignment-1)
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& ~(st->self->parent->pool_alignment-1);
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nfs_do_write(st->ino, 0, unshare_size, [&](cluster_op_t *op)
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{
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op->iov.push_back(st->aligned_buf + sizeof(shared_file_header_t), st->aligned_size - sizeof(shared_file_header_t));
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op->iov.push_back(st->aligned_buf + sizeof(shared_file_header_t), unshare_size);
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}, st, state);
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}
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@ -292,6 +294,7 @@ static bool nfs_do_shared_readmodify(nfs_kv_write_state *st, int base_state, int
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? sizeof(shared_file_header_t) + ((st->new_size + st->self->parent->pool_alignment-1) & ~(st->self->parent->pool_alignment-1))
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: align_shared_size(st->self, st->new_size);
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st->aligned_buf = (uint8_t*)malloc_or_die(st->aligned_size);
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// FIXME do not allocate zeroes if we only need zeroes
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memset(st->aligned_buf + sizeof(shared_file_header_t), 0, st->offset);
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memset(st->aligned_buf + sizeof(shared_file_header_t) + st->offset + st->size, 0,
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st->aligned_size - sizeof(shared_file_header_t) - st->offset - st->size);
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@ -319,6 +322,7 @@ resume_0:
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return false;
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}
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}
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// FIXME put shared_file_header_t after data to not break alignment
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*((shared_file_header_t*)st->aligned_buf) = {
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.magic = SHARED_FILE_MAGIC_V1,
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.inode = st->ino,
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@ -679,7 +683,7 @@ resume_1:
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st->ientry["shared_alloc"].uint64_value() < sizeof(shared_file_header_t)+st->offset+st->size)
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{
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// Either empty, or shared and requires moving into a larger place (redirect-write)
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allocate_shared_inode(st, 2, st->new_size);
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allocate_shared_inode(st, 2, align_shared_size(st->self, st->new_size));
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return;
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resume_2:
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if (st->res < 0)
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@ -783,7 +787,12 @@ resume_10:
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nfs_do_unshare_write(st, 11);
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return;
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resume_11:
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;
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if (st->res < 0)
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{
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auto cb = std::move(st->cb);
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cb(st->res);
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return;
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}
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}
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st->self->parent->db->set(kv_inode_key(st->ino), new_unshared_ientry(st), [st](int res)
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{
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