This patch set introduces the concept of indirectly reclaimable memory and applies it to fix the issue, when a big number of dentries with external names can significantly affect the MemAvailable value.
v2: 1) removed comments specific to unreclaimable slabs 2) splitted into 3 patches v1: https://lkml.org/lkml/2018/3/1/961 Cc: Andrew Morton <[email protected]> Cc: Alexander Viro <[email protected]> Cc: Michal Hocko <[email protected]> Cc: Johannes Weiner <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Roman Gushchin (3): mm: introduce NR_INDIRECTLY_RECLAIMABLE_BYTES mm: treat indirectly reclaimable memory as available in MemAvailable dcache: account external names as indirectly reclaimable memory fs/dcache.c | 29 ++++++++++++++++++++++++----- include/linux/mmzone.h | 1 + mm/page_alloc.c | 7 +++++++ mm/vmstat.c | 1 + 4 files changed, 33 insertions(+), 5 deletions(-) -- 2.14.3
