Paul Menage wrote: > [RFC] Example multi-bindable subsystem: a per-cgroup notes field > > As an example of a multiply-bindable subsystem, this patch introduces > the "info" subsystem, which provides a single file, "info.notes", in > which user-space middleware can store an arbitrary (up to one page) > string representing configuration data about that cgroup. This reduces > the need to keep additional state outside the cgroup filesystem. > > TODO: a single page is somewhat limiting - the file limit should be > userspace-configurable, and the system should store large notes in a > vector of pages (to avoid trying to kmalloc() an excessively large > chunk of memory. (Or maybe just use vmalloc()) >
add info.size, and the size will default to PAGESIZE but is changable? > Signed-off-by: Paul Menage <[email protected]> > > +config CGROUP_INFO > + bool "Simple application-specific info cgroup subsystem "..." > + help > + Provides a simple cgroups subsystem with an "info.notes" > + field, which can be used by middleware to store > + application-specific configuration data about a cgroup. Can > + be mounted on multiple hierarchies at once. > + _______________________________________________ Containers mailing list [email protected] https://lists.linux-foundation.org/mailman/listinfo/containers _______________________________________________ Devel mailing list [email protected] https://openvz.org/mailman/listinfo/devel
