Hi Kirill, On Mon, Dec 04, 2017 at 07:12:51PM +0300, Kirill Tkhai wrote: > Hi, > > this patch set introduces accounting aio_nr and aio_max_nr per blkio cgroup. > It may be used to limit number of aio requests, which are available for > a cgroup, and could be useful for containers. > > The accounting is hierarchical, and aio contexts, allocated in child cgroup, > are accounted in parent cgroups too. > > Also, new cgroup file "io.aio_nr" is introduced. It's used to set cgroup > aio requests limit, to show current limit and number of currenly occupied > requests. Where are your test cases to check this functionality in the libaio test suite? -ben > Patches 1-3 are refactoring. > Patch 4 is the place where the accounting actually introduced. > Patch 5 adds "io.aio_nr" file. > > --- > > Kirill Tkhai (5): > aio: Move aio_nr increment to separate function > aio: Export aio_nr_lock and aio_max_nr initial value to include/linux/aio.h > blkcg: Add blkcg::blkg_aio_nr and blkcg::blkg_aio_max_nr > blkcg: Charge aio requests in blkio cgroup hierarchy > blkcg: Add cgroup file to configure blkcg::blkg_aio_max_nr > > > block/blk-cgroup.c | 88 +++++++++++++++++++++++++- > fs/aio.c | 151 ++++++++++++++++++++++++++++++++++++++++---- > include/linux/aio.h | 21 ++++++ > include/linux/blk-cgroup.h | 4 + > 4 files changed, 247 insertions(+), 17 deletions(-) > > -- > Signed-off-by: Kirill Tkhai <ktkhai@xxxxxxxxxxxxx> > -- "Thought is the essence of where you are now."
