Doug / smarc-fsl-linux-kernel

11 Apr, 2012

1 commit

  • 1d62e4365   cgroup: pass struct mem_cgroup instead of struct cgroup to socket memcg ... Browse Code »

    The only reason cgroup was used, was to be consistent with the populate()
    interface. Now that we're getting rid of it, not only we no longer need
    it, but we also *can't* call it this way.

    Since we will no longer rely on populate(), this will be called from
    create(). During create, the association between struct mem_cgroup
    and struct cgroup does not yet exist, since cgroup internals hasn't
    yet initialized its bookkeeping. This means we would not be able
    to draw the memcg pointer from the cgroup pointer in these
    functions, which is highly undesirable.

    Signed-off-by: Glauber Costa
    Acked-by: Kamezawa Hiroyuki
    Signed-off-by: Tejun Heo
    CC: Li Zefan
    CC: Johannes Weiner
    CC: Michal Hocko

    Glauber Costa
     

03 Feb, 2012

1 commit

  • 761b3ef50   cgroup: remove cgroup_subsys argument from callbacks ... Browse Code »

    The argument is not used at all, and it's not necessary, because
    a specific callback handler of course knows which subsys it
    belongs to.

    Now only ->pupulate() takes this argument, because the handlers of
    this callback always call cgroup_add_file()/cgroup_add_files().

    So we reduce a few lines of code, though the shrinking of object size
    is minimal.

    16 files changed, 113 insertions(+), 162 deletions(-)

    text data bss dec hex filename
    5486240 656987 7039960 13183187 c928d3 vmlinux.o.orig
    5486170 656987 7039960 13183117 c9288d vmlinux.o

    Signed-off-by: Li Zefan
    Signed-off-by: Tejun Heo

    Li Zefan
     

13 Dec, 2011

2 commits

  • 3aaabe234   tcp buffer limitation: per-cgroup limit ... Browse Code »

    This patch uses the "tcp.limit_in_bytes" field of the kmem_cgroup to
    effectively control the amount of kernel memory pinned by a cgroup.

    This value is ignored in the root cgroup, and in all others,
    caps the value specified by the admin in the net namespaces'
    view of tcp_sysctl_mem.

    If namespaces are being used, the admin is allowed to set a
    value bigger than cgroup's maximum, the same way it is allowed
    to set pretty much unlimited values in a real box.

    Signed-off-by: Glauber Costa
    Reviewed-by: Hiroyouki Kamezawa
    CC: David S. Miller
    CC: Eric W. Biederman
    Signed-off-by: David S. Miller

    Glauber Costa
     
  • d1a4c0b37   tcp memory pressure controls ... Browse Code »

    This patch introduces memory pressure controls for the tcp
    protocol. It uses the generic socket memory pressure code
    introduced in earlier patches, and fills in the
    necessary data in cg_proto struct.

    Signed-off-by: Glauber Costa
    Reviewed-by: KAMEZAWA Hiroyuki
    CC: Eric W. Biederman
    Signed-off-by: David S. Miller

    Glauber Costa