emo/thin-provisioning-tools
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

[block-cache] writeback could get stuck in a loop

Browse Source 
If a block had a non zero ref count.
This commit is contained in:
Joe Thornber 2017-08-14 10:40:41 +01:00
parent dfd066e59e
commit a45ffd896a
1 changed files with 5 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
block-cache/block_cache.cc
View File

@ -265,13 +265,11 @@ block_cache::writeback(unsigned count)
if (actual == count) if (actual == count)
break; break;
// The block may be on the dirty list from a prior // We can't writeback anything that's still in use.
// acquisition. if (!it->ref_count_) {
if (it->ref_count_)
continue;
issue_write(*it); issue_write(*it);
actual++; actual++;
}
it = next; it = next;
} }