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Eric Dumazet 5c0941c55e kobject: reduce uevent_sock_mutex scope 
This is a followup of commit a3498436b3 ("netns: restrict uevents")

- uevent_sock_mutex no longer protects uevent_seqnum thanks
  to prior patch in the series.

- uevent_net_broadcast() can run without holding uevent_sock_mutex.

- Instead of grabbing uevent_sock_mutex before calling
  kobject_uevent_net_broadcast(), we can move the
  mutex_lock(&uevent_sock_mutex) to the place we iterate over
  uevent_sock_list : uevent_net_broadcast_untagged().

After this patch, typical netdevice creations and destructions
calling uevent_net_broadcast_tagged() no longer need to acquire
uevent_sock_mutex.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Christian Brauner <brauner@kernel.org>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20240214084829.684541-3-edumazet@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2024-02-17 16:20:41 +01:00
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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 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.