The sixth "data" field of /proc/$pid/statm was sometimes negative: text is
a subset of shared_vm, and so was subtracted twice from total_vm.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Acked-by: William Irwin <wli@holomorphy.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>