mainlining shenanigans
c491eae8f9
When looking at the details I realised that the memory poison in __xdp_mem_allocator_rcu_free doesn't make sense. This is because the SLUB allocator uses the first 16 bytes (on 64 bit), for its freelist, which overlap with members in struct xdp_mem_allocator, that were updated. Thus, SLUB already does the "poisoning" for us. I still believe that poisoning memory make sense in other cases. Kernel have gained different use-after-free detection mechanism, but enabling those is associated with a huge overhead. Experience is that debugging facilities can change the timing so much, that that a race condition will not be provoked when enabled. Thus, I'm still in favour of poisoning memory where it makes sense. Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| 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 | ||
| Kconfig | ||
| MAINTAINERS | ||
| 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.