Linux mainline fork with MSM8998 patches | https://mainline.space | Currently supported devices:
OnePlus 5/5T, Xiaomi Mi 6, F(x)tec Pro¹ (2019 QX1000 model) & Sony Xperia XZ Premium (UNTESTED!)
ecda49c522
KP Singh says: ==================== - Use ring_buffer__consume without BPF_RB_FORCE_WAKEUP as suggested by Andrii - Use ASSERT_OK_PTR macro Sleepable programs currently do not have access to any ringbuffer and since the perf ring buffer is a per-cpu map, it would not be trivial to enable for sleepable programs. Our specific use-case is to use the bpf_ima_inode_hash helper and write the hash to a ring buffer from a sleepable LSM hook. This series allows the BPF ringbuffer to be used in sleepable programs (tracing and lsm). Since the helper prototypes were already exposed the only change required was have the verifier allow BPF_MAP_TYPE_RINGBUF for sleepable programs. The ima test is also modified to use the ringbuffer instead of global variables. Based on dicussions we had over the BPF office hours and enabling all the possible debug options, I could not find any issues or warnings when using the ring buffer from sleepable programs. ==================== Signed-off-by: Andrii Nakryiko <andrii@kernel.org> |
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| fs | ||
| include | ||
| init | ||
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| kernel | ||
| lib | ||
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| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
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| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
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| 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.