When memory cgroups are enabled, reclaim code may force scan of anonymous page in one memcg even when there are plenty of file pages in other memcg. It has lead to excessive swapping in a real life example: a virtual machine running in a memcg while there is background I/O.
The first patch just updates an outdated comment that has bugged me for a while but that I never bothered to update. The second patch actually fixes the issue. Jerome Marchand (2): mm, vmscan: fix an outdated comment still mentioning get_scan_ratio memcg, vmscan: Fix forced anon scan mm/vmscan.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) -- 1.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
