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Linux kernel source tree
1f72672327
Björn Töpel says:
====================
This series (v5 and counting) add two improvements for the XSKMAP,
used by AF_XDP sockets.
1. Automatic cleanup when an AF_XDP socket goes out of scope/is
released. Instead of require that the user manually clears the
"released" state socket from the map, this is done
automatically. Each socket tracks which maps it resides in, and
remove itself from those maps at relase. A notable implementation
change, is that the sockets references the map, instead of the map
referencing the sockets. Which implies that when the XSKMAP is
freed, it is by definition cleared of sockets.
2. The XSKMAP did not honor the BPF_EXIST/BPF_NOEXIST flag on insert,
which this patch addresses.
v1->v2: Fixed deadlock and broken cleanup. (Daniel)
v2->v3: Rebased onto bpf-next
v3->v4: {READ, WRITE}_ONCE consistency. (Daniel)
Socket release/map update race. (Daniel)
v4->v5: Avoid use-after-free on XSKMAP self-assignment [1]. (Daniel)
Removed redundant assignment in xsk_map_update_elem().
Variable name consistency; Use map_entry everywhere.
[1] https://lore.kernel.org/bpf/20190802081154.30962-1-bjorn.topel@gmail.com/T/#mc68439e97bc07fa301dad9fc4850ed5aa392f385
====================
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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| certs | ||
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| 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.