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Hou Tao says: ==================== The simple patch set aims to replace GFP_ATOMIC by GFP_KERNEL in bpf_event_entry_gen(). These two patches in the patch set were preparatory patches in "Fix the release of inner map" patchset [1] and are not needed for v2, so re-post it to bpf-next tree. Patch #1 reduces the scope of rcu_read_lock when updating fd map and patch #2 replaces GFP_ATOMIC by GFP_KERNEL. Please see individual patches for more details. Change Log: v3: * patch #1: fallback to patch #1 in v1. Update comments in bpf_fd_htab_map_update_elem() to explain the reason for rcu_read_lock() (Alexei) v2: https://lore.kernel.org/bpf/20231211073843.1888058-1-houtao@huaweicloud.com/ * patch #1: add rcu_read_lock/unlock() for bpf_fd_array_map_update_elem as well to make it consistent with bpf_fd_htab_map_update_elem and update commit message accordingly (Alexei) * patch #1/#2: collects ack tags from Yonghong v1: https://lore.kernel.org/bpf/20231208103357.2637299-1-houtao@huaweicloud.com/ [1]: https://lore.kernel.org/bpf/20231107140702.1891778-1-houtao@huaweicloud.com/ ==================== Link: https://lore.kernel.org/r/20231214043010.3458072-1-houtao@huaweicloud.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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.