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0722237191
At the moment memcg IDs are managed through IDR which requires external synchronization mechanisms and makes the allocation code a bit awkward. Let's switch to xarray and make the code simpler. [shakeel.butt@linux.dev: fix error path in mem_cgroup_alloc(), per Dan] Link: https://lkml.kernel.org/r/20240815155402.3630804-1-shakeel.butt@linux.dev Link: https://lkml.kernel.org/r/20240809172618.2946790-1-shakeel.butt@linux.dev Signed-off-by: Shakeel Butt <shakeel.butt@linux.dev> Suggested-by: Matthew Wilcox <willy@infradead.org> Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev> Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Reviewed-by: Muchun Song <muchun.song@linux.dev> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Dan Carpenter <dan.carpenter@linaro.org> 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.