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b0920ede08
rdev and replacement are protected in some circumstances with rcu_dereference and synchronize_rcu (in raid5_remove_disk()). However, they were not annotated with __rcu so a sparse warning is emitted for every rcu_dereference() call. Add the __rcu annotation and fix up the initialization with RCU_INIT_POINTER, all pointer modifications with rcu_assign_pointer(), a few cases where the pointer value is tested with rcu_access_pointer() and one case where READ_ONCE() is used instead of rcu_dereference(), a case in print_raid5_conf() that should have rcu_dereference() and rcu_read_[un]lock() calls. Additional sparse issues will be fixed up in further commits. Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Song Liu <song@kernel.org> |
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| drivers | ||
| fs | ||
| include | ||
| init | ||
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| kernel | ||
| lib | ||
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| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
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| README | ||
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.