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11d8b79e84
Clang's structure layout randomization feature gets upset when it sees struct address_space (which is randomized) cast to struct gfs2_glock. This is due to seeing the mapping pointer as being treated as an array of gfs2_glock, rather than "something else, before struct address_space": In file included from fs/gfs2/acl.c:23: fs/gfs2/meta_io.h:44:12: error: casting from randomized structure pointer type 'struct address_space *' to 'struct gfs2_glock *' return (((struct gfs2_glock *)mapping) - 1)->gl_name.ln_sbd; ^ Replace the instances of open-coded pointer math with container_of() usage, and update the allocator to match. Some cleanups and conversion of gfs2_glock_get() and gfs2_glock_dealloc() by Andreas. Reported-by: kernel test robot <lkp@intel.com> Link: https://lore.kernel.org/lkml/202205041550.naKxwCBj-lkp@intel.com Cc: Bob Peterson <rpeterso@redhat.com> Cc: Andreas Gruenbacher <agruenba@redhat.com> Cc: Bill Wendling <morbo@google.com> Cc: cluster-devel@redhat.com Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
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.