Hi Greg, On 2018/11/22 20:26, Greg Kroah-Hartman wrote: > Ugh, every page? Ok, nevermind, I take back my objections. You all are > crazy and need to do crazy things like this :) ...Do you have some idea about this? ... I think it is fairly normal... :( We have a large number of managed workgroups, the current use case is the 4k compressed size, each compressed page has a workgroup, but erofs also has reclaim paths to free them for low memory cases. But since the structure (z_erofs_vle_workgroup, erofs_workgroup) is critical, I need to make it as small as possible. Thanks, Gao Xiang _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel