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6bc4544021
It is not necessary to hold the mla_lock spinlock during the whole multicast tt/tvlv worker callback. Just holding it during the checks and updates of the bat_priv stored multicast flags and mla_list is enough. Therefore this patch splits batadv_mcast_mla_tvlv_update() in two: batadv_mcast_mla_flags_get() at the beginning of the worker to gather and calculate the new multicast flags, which does not need any locking as it neither reads from nor writes to bat_priv->mcast. And batadv_mcast_mla_flags_update() at the end of the worker which commits the newly calculated flags and lists to bat_priv->mcast and therefore needs the lock. Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue> Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de> |
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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.