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cf4a65539c
While updating the generation of the folios, MGLRU requires that the folio's memcg association remains stable. With the charge migration deprecated, there is no need for MGLRU to acquire locks to keep the folio and memcg association stable. [yuzhao@google.com: remove !rcu_read_lock_held() assertion] Link: https://lkml.kernel.org/r/ZykEtcHrQRq-KrBC@google.com Link: https://syzkaller.appspot.com/bug?extid=24f45b8beab9788e467e Link: https://lore.kernel.org/lkml/67294349.050a0220.701a.0010.GAE@google.com/ [akpm@linux-foundation.org: remove now-unused local] [shakeel.butt@linux.dev: folio_rcu() fixup, per Yu Zhao] Link: https://lkml.kernel.org/r/iwmabnye3nl4merealrawt3bdvfii2pwavwrddrqpraoveet7h@ezrsdhjwwej7 Link: https://lkml.kernel.org/r/20241025012304.2473312-6-shakeel.butt@linux.dev Signed-off-by: Shakeel Butt <shakeel.butt@linux.dev> Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev> Cc: Hugh Dickins <hughd@google.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Muchun Song <muchun.song@linux.dev> Cc: Yosry Ahmed <yosryahmed@google.com> 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.