On Wed, Aug 03, 2016 at 11:15:25AM +0300, Vladimir Davydov wrote: > On Wed, Aug 03, 2016 at 05:51:39AM +0200, Greg KH wrote: > > On Tue, Aug 02, 2016 at 03:45:34PM +0300, Vladimir Davydov wrote: > > > Radix trees may be used not only for storing page cache pages, so > > > unconditionally accounting radix tree nodes to the current memory cgroup > > > is bad: if a radix tree node is used for storing data shared among > > > different cgroups we risk pinning dead memory cgroups forever. So let's > > > only account radix tree nodes if it was explicitly requested by passing > > > __GFP_ACCOUNT to INIT_RADIX_TREE. Currently, we only want to account > > > page cache entries, so mark mapping->page_tree so. > > > > > > Signed-off-by: Vladimir Davydov <vdavydov@xxxxxxxxxxxxx> > > > Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx> > > > Acked-by: Michal Hocko <mhocko@xxxxxxxx> > > > Cc: <stable@xxxxxxxxxxxxxxx> [4.6+] > > > --- > > > fs/inode.c | 2 +- > > > lib/radix-tree.c | 14 ++++++++++---- > > > 2 files changed, 11 insertions(+), 5 deletions(-) > > > > Is this patch in Linus's tree already? > > Not yet, it should only be added to 4.8, so I shouldn't have sent this > (didn't know how patches are submitted to stable). Please ignore. Please read Documentation/stable_kernel_rules.txt, it should help answer this question (hint, you almost got it right...) thanks, greg k-h -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>