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[ Upstream commit 357a18d033143617e9c7d420c8f0dd4cbab5f34d ] Previously, @ondemand_id field was used not only to identify ondemand state of the object, but also to represent the index of the xarray. This commit introduces @state field to decouple the role of @ondemand_id and adds helpers to access it. Signed-off-by: Jia Zhu <zhujia.zj@bytedance.com> Link: https://lore.kernel.org/r/20231120041422.75170-2-zhujia.zj@bytedance.com Reviewed-by: Jingbo Xu <jefflexu@linux.alibaba.com> Reviewed-by: David Howells <dhowells@redhat.com> Signed-off-by: Christian Brauner <brauner@kernel.org> Stable-dep-of: 0a790040838c ("cachefiles: add spin_lock for cachefiles_ondemand_info") Signed-off-by: Sasha Levin <sashal@kernel.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 Restructured Text 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.