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? confused, 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>