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Eric Dumazet aed4969f2b net: net->nsid_lock does not need BH safety
At the time of commit bc51dddf98 ("netns: avoid disabling irq
for netns id") peernet2id() was not yet using RCU.

Commit 2dce224f46 ("netns: protect netns
ID lookups with RCU") changed peernet2id() to no longer
acquire net->nsid_lock (potentially from BH context).

We do not need to block soft interrupts when acquiring
net->nsid_lock anymore.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Guillaume Nault <gnault@redhat.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20250627163242.230866-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
History 2025-06-30 18:58:20 -07:00
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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 reStructuredText 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.