Stefan Metzmacher 8aa23bae60 smb: server: make consitent use of spin_lock_irq{save,restore}() in transport_rdma.c
There is a mix of using spin_lock() and spin_lock_irq(), which
is confusing as IB_POLL_WORKQUEUE is used and no code would
be called from any interrupt. So using spin_lock() or even
mutexes would be ok.

But we'll soon share common code with the client, which uses
IB_POLL_SOFTIRQ.

And Documentation/kernel-hacking/locking.rst section
"Cheat Sheet For Locking" says:

-  Otherwise (== data can be touched in an interrupt), use
   spin_lock_irqsave() and
   spin_unlock_irqrestore().

So in order to keep it simple and safe we use that version
now. It will help merging functions into common code and
have consistent locking in all cases.

Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:54 -05:00
2025-09-28 14:39:22 -07:00

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.
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