Messages in this thread | | | Date | Tue, 14 Feb 2012 12:04:14 +0900 | From | KAMEZAWA Hiroyuki <> | Subject | [PATCH 0/6 v4] memcg: page cgroup diet |
| |
Here is v4. I removed RFC and fixed a fatal bug in v3.
This patch series is a preparetion for removing page_cgroup->flags. To remove it, we need to reduce flags on page_cgroup. In this set, PCG_MOVE_LOCK and PCG_FILE_MAPPED are remvoed.
After this, we only have 3 bits. == enum { /* flags for mem_cgroup */ PCG_LOCK, /* Lock for pc->mem_cgroup and following bits. */ PCG_USED, /* this object is in use. */ PCG_MIGRATION, /* under page migration */ __NR_PCG_FLAGS, }; ==
I'll make a try to merge this 3bits to lower 3bits of pointer to memcg. Then, we can make page_cgroup 8(4)bytes per page.
Major changes since v3 are - replaced move_lock_page_cgroup() with move_lock_mem_cgroup(). passes pointer to memcg rather than page_cgroup.
Working on linux-next feb13 and passed several tests.
Thanks, -Kame
| |