]> www.infradead.org Git - users/jedix/linux-maple.git/commit
mm: change count_objcg_event() to count_objcg_events() for batch event updates
authorKanchana P Sridhar <kanchana.p.sridhar@intel.com>
Tue, 1 Oct 2024 05:32:19 +0000 (22:32 -0700)
committerAndrew Morton <akpm@linux-foundation.org>
Fri, 1 Nov 2024 04:28:54 +0000 (21:28 -0700)
commit80b1fdc567311e6b178ac7087c01c8d01bf7880f
tree9d0ff6198cc2c510d0b0e2c67bfa869256182c7b
parentfb58ac62b0d4f19020c8221265b9b40253785ec7
mm: change count_objcg_event() to count_objcg_events() for batch event updates

With the introduction of zswap_store() swapping out large folios, we need
to efficiently update the objcg's memcg events once per successfully
stored folio.  For instance, the 'ZSWPOUT' event needs to be incremented
by folio_nr_pages().

To facilitate this, the existing count_objcg_event() API is modified to be
count_objcg_events() that additionally accepts a count parameter.  The
only existing calls to count_objcg_event() are in zswap.c - these have
been modified to call count_objcg_events() with a count of 1.

Link: https://lkml.kernel.org/r/20241001053222.6944-5-kanchana.p.sridhar@intel.com
Signed-off-by: Kanchana P Sridhar <kanchana.p.sridhar@intel.com>
Acked-by: Yosry Ahmed <yosryahmed@google.com>
Reviewed-by: Nhat Pham <nphamcs@gmail.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Chengming Zhou <chengming.zhou@linux.dev>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Usama Arif <usamaarif642@gmail.com>
Cc: Wajdi Feghali <wajdi.k.feghali@intel.com>
Cc: "Zou, Nanhai" <nanhai.zou@intel.com>
Cc: Barry Song <21cnbao@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
include/linux/memcontrol.h
mm/zswap.c