mainlining shenanigans
423a86a610
The rcu_assign_pointer() function currently doesn't do any sparse checking on the assigned-to pointer. So its possible that a pointer that is not __rcu annotated is assigned with rcu_assign_pointer without sparse complaints. Because rcu_dereference() already does such checking, this commit makes rcu_assign_pointer() to do the same. The extra error could be helpful in cases where an RCU pointer is assigned with rcu_assign_pointer() but not annotated with __rcu. This doesn't generate any code in the normal case because __CHECKER__ is defined only in the context of sparse. This commit also renames rcu_dereference_sparse() to rcu_check_parse() since the checking now happens not only during derereferencing but also during assignment. Test: Introduced an rcu_assign_pointer in code and checked the output of sparse with and without this change. The change correctly causes sparse to throw an error. Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org> Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com> |
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
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| Makefile | ||
| 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.