f5e29a26c4
- Make the fast path reader ordering guarantees correct. - Code reshuffling to make the fix simpler. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmFHIykTHHRnbHhAbGlu dXRyb25peC5kZQAKCRCmGPVMDXSYoeQOD/9fK16wOliLWJ082y/ywmFly0XnWXW3 WiHyWrrt6gr/nqbPUFkVzQtdtTY3Xanuid1WT9S/EQ45Vw9KI4GxtAQz4vBIyI6q /zz13+xOQdeEdH745ufOELaL/KKLsFAJXcf7UINZgVI8s4h7ghx2fy6FCd7vOu88 Mlv9CBnBpcScnOmNehsnBA11QuclSf6aOXeqkMtBmndVoRzTRMpgnGLmu74J+9gh iV6aquGSSU39FTvUIozm2nfTeCAJtd/SK//tMIg6dvE1N/cFxr3rel26MmlFuQCI 3hf2BRROtYvR+n/7Q9l+M+q/77SJEEWHIMKqG4sUaopDq6s4vhcOqM2FtXZAx7Lp lcqOHcL9XpXbKiHPo1RcbnrzzDtObWKearJ5nkQVxX2OpbkzJwbrcQPYOdwJ/BOd gpHyE1eI/mYLW5QTchAEQvVPP6gbKLNaKuXLxHz0SJSFpxtLq3bI4gE3pP254dlQ KsbytPfzzkk7MSVsRopf827B7K1+XrM/lmBSVJ70rzvLPiPVd7M7Jn6jlCov85XS 8sza4hQw4r/yNUDQWNO/u4GHicDNRMeYexA3axretfKSjdqegiNHGwEzBR7mhhBP DWxn3B4ZzLebj8dR8hR8zMf6cUeGui1+JIEN6mvEN4CxQlz393IMLlmsEvNcSETf L5yTIRc1sn1efw== =nwT0 -----END PGP SIGNATURE----- Merge tag 'locking-urgent-2021-09-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking fixes from Thomas Gleixner: "A set of updates for the RT specific reader/writer locking base code: - Make the fast path reader ordering guarantees correct. - Code reshuffling to make the fix simpler" [ This plays ugly games with atomic_add_return_release() because we don't have a plain atomic_add_release(), and should really be cleaned up, I think - Linus ] * tag 'locking-urgent-2021-09-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: locking/rwbase: Take care of ordering guarantee for fastpath reader locking/rwbase: Extract __rwbase_write_trylock() locking/rwbase: Properly match set_and_save_state() to restore_state()
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.