On Wed, 13 Apr 2022 17:13:57 -0400 "Alex Xu (Hello71)" <alex_y_xu@xxxxxxxx> wrote: > This restores the behavior prior to 258f669e7e88 ("mm: > /proc/pid/smaps_rollup: convert to single value seq_file"), making it > once again consistent with maps and smaps, and allowing patterns like > awk '$1=="Anonymous:"{x+=$2}END{print x}' /proc/*/smaps_rollup to work. > Searching all Debian packages for "smaps_rollup" did not find any > programs which would be affected by this change. Thanks. 258f669e7e88 was 4 years ago, so I guess a -stable backport isn't really needed. However, we need to be concerned about causing new regressions, and I don't think you've presented enough information for this to be determined. So please provide us with a full description of how the smaps_rollup output will be altered by this patch. Quoting example output would be helpful.