Hi all,
I met a problem and ask somebody could help me.
In func striped_read()
> if (ret > 0) {
> int didpages = (page_align + ret) >> PAGE_CACHE_SHIFT;
> if (read < pos - off) {
> dout(" zero gap %llu to %llu\n", off + read, pos);
> ceph_zero_page_vector_range(page_align + read,
> pos - off - read, pages);
> }
> pos += ret;
> read = pos - off;
At first , pos = off and off don't modify.
Why does it judge 'read < pos -off ' ?
Because the read = pos -off, so the read must equal pos -off.
Thansk!
Jianpeng Ma?韬{.n?????%??檩??w?{.n????u朕?Ф?塄}?财??j:+v?? ? ???2??璀??摺?囤??z夸z罐?+?????w棹f
