On Mon, May 19, 2014 at 03:58:33PM -0700, Andy Lutomirski wrote: > Using arch_vma_name to give special mappings a name is awkward. x86 > currently implements it by comparing the start address of the vma to > the expected address of the vdso. This requires tracking the start > address of special mappings and is probably buggy if a special vma > is split or moved. > > Improve _install_special_mapping to just name the vma directly. Use > it to give the x86 vvar area a name, which should make CRIU's life > easier. > > As a side effect, the vvar area will show up in core dumps. This > could be considered weird and is fixable. Thoughts? > > Cc: Cyrill Gorcunov <gorcunov@xxxxxxxxxx> > Cc: Pavel Emelyanov <xemul@xxxxxxxxxxxxx> > Signed-off-by: Andy Lutomirski <luto@xxxxxxxxxxxxxx> Hi Andy, thanks a lot for this! I must confess I don't yet know how would we deal with compat tasks but this is 'must have' mark which allow us to detect vvar area! -- 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>