[block-cache] Fix error handling in reading libaio events

io_event::res is a signed int64 in kernel, but libaio defines it
as unsigned long. We should cast it to a signed value.
This commit is contained in:
Ming-Hung Tsai 2016-10-06 22:36:12 +08:00
parent 49bfc12e9c
commit 6c1be8d6fa

View File

@ -213,7 +213,7 @@ block_cache::wait_io()
if (e.res == block_size_ << SECTOR_SHIFT)
complete_io(*b, 0);
else if (e.res < 0)
else if (static_cast<long>(e.res) < 0)
complete_io(*b, e.res);
else {