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From: Oleksii Kurochko <oleksii.kurochko@gmail.com>
To: Roger Pau Monne <roger.pau@citrix.com>, xen-devel@lists.xenproject.org
Cc: Jan Beulich <jbeulich@suse.com>,
	Andrew Cooper <andrew.cooper3@citrix.com>,
	Teddy Astie <teddy.astie@vates.tech>
Subject: Re: [PATCH for-4.22 v2 3/4] xen/irq: handle IRQ being disabled while executing its handler
Date: Mon, 29 Jun 2026 15:37:04 +0200	[thread overview]
Message-ID: <075c7302-d2c5-45d2-9fb7-bb7b49bc6dd6@gmail.com> (raw)
In-Reply-To: <20260629094531.55555-4-roger.pau@citrix.com>



On 6/29/26 11:45 AM, Roger Pau Monne wrote:
> It's possible for IRQ_DISABLED to be set while running the handler
> execution loop in do_IRQ().  Such disabling can be done by the handler
> itself, or from a remote CPU.
> 
> Check for IRQ_DISABLED not being set in the loop condition, as to not
> execute the handler if the IRQ has been disabled.
> 
> Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
> ---
> I wanted to add a fixes tag, but this has been broken since forever, and
> hence I should add:
> 
> Fixes: 4676bbf96dc8 ("bitkeeper revision 1.2 (3ddb79c9KusG02eh7i-uXkgY0IksKA)")
> 
> Which is pointless IMO.
> ---

Release-Acked-by: Oleksii Kurochko <oleksii.kurochko@gmail.com>

Thanks.

~ Oleksii


  parent reply	other threads:[~2026-06-29 13:37 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-29  9:45 [PATCH for-4.22 v2 0/4] ns16550: bound interrupt handler execution time Roger Pau Monne
2026-06-29  9:45 ` [PATCH for-4.22 v2 1/4] riscv/irq: define a per-arch irq_to_desc() Roger Pau Monne
2026-06-29 10:01   ` Oleksii Kurochko
2026-06-29 10:06   ` Jan Beulich
2026-06-29  9:45 ` [PATCH for-4.22 v2 2/4] xen/ppc: introduce a dummy irq_to_desc() Roger Pau Monne
2026-06-29 10:07   ` Jan Beulich
2026-06-29 10:09   ` Oleksii Kurochko
2026-06-29 14:26     ` Oleksii Kurochko
2026-06-29  9:45 ` [PATCH for-4.22 v2 3/4] xen/irq: handle IRQ being disabled while executing its handler Roger Pau Monne
2026-06-29 10:31   ` Jan Beulich
2026-06-29 14:29     ` Roger Pau Monné
2026-06-29 14:31       ` Jan Beulich
2026-06-29 13:37   ` Oleksii Kurochko [this message]
2026-06-29  9:45 ` [PATCH for-4.22 v2 4/4] char/ns16550: bound execution time of ns16550_interrupt() Roger Pau Monne
2026-06-29 10:39   ` Jan Beulich
2026-06-29 14:44     ` Roger Pau Monné
2026-06-29 13:49   ` Oleksii Kurochko

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