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The do_memsw_account() is used to enable or disable legacy memory+swap accounting in memory cgroup. However with disabled CONFIG_MEMCG_V1, we don't need to keep checking it. So, let's always return false for !CONFIG_MEMCG_V1 configs. Before the patch: $ size mm/memcontrol.o text data bss dec hex filename 49928 10736 4172 64836 fd44 mm/memcontrol.o After the patch: $ size mm/memcontrol.o text data bss dec hex filename 49430 10480 4172 64082 fa52 mm/memcontrol.o Link: https://lkml.kernel.org/r/20250312222552.3284173-1-shakeel.butt@linux.dev Signed-off-by: Shakeel Butt <shakeel.butt@linux.dev> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Muchun Song <muchun.song@linux.dev> Cc: Roman Gushchin <roman.gushchin@linux.dev> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.