Hi, > Hi everyone, > > Here are new releases of bio-cgroup. > Changes from the previous version are as follows: > > - Accurate dirty-page tracking > Support migrating pages between bio-cgroups with minimum overhead, I'm the one implementing this code. The implementation isn't finished yet that this this code can't handle mmapped file pages correctly. Actually, the same problem goes with the task I/O accounting mechanism since the two of them are using the same hook This happens when starting to free pages under memory pressure. Dirty bit of a pte will be moved into PG_Dirty flag of the associated page. This can be done in another process context, while the hook try to charge this operation to the current process. > but I think such a situation is quite rare. I implemented it though, I don't think this case often happens since it's not normal that several processes try to write the same block of a file. Thanks, Hirokazu Takahashi. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
