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Re: [PATCH v3 04/24] xen/console: introduce console_{get,put}_domain()
- To: <dmukhin@xxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Jason Andryuk <jason.andryuk@xxxxxxx>
- Date: Mon, 27 Jan 2025 18:07:13 -0500
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- Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, "Jan Beulich" <jbeulich@xxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Delivery-date: Mon, 27 Jan 2025 23:42:41 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 2025-01-03 20:58, Denis Mukhin via B4 Relay wrote:
From: Denis Mukhin <dmukhin@xxxxxxxx>
console_input_domain() takes an RCU lock to protect domain structure.
That implies call to rcu_unlock_domain() after use.
Introduce a pair of console_get_domain() / console_put_domain() to highlight
the correct use of the call within the code interacting with Xen console
driver.
Also, use new calls in the console driver in __serial_rx(). That prepares
the code for the follow-on console driver cleanup series.
Signed-off-by: Denis Mukhin <dmukhin@xxxxxxxx>
Reviewed-by: Jason Andryuk <jason.andryuk@xxxxxxx>
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