The param "irqflood_suppress" is helpful for capture kernel to survive irq
flood.

Signed-off-by: Pingfan Liu <kernelf...@gmail.com>
Cc: Thomas Gleixner <t...@linutronix.de>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Jisheng Zhang <jisheng.zh...@synaptics.com>
Cc: Andrew Morton <a...@linux-foundation.org>
Cc: "Guilherme G. Piccoli" <gpicc...@canonical.com>
Cc: Petr Mladek <pmla...@suse.com>
Cc: Marc Zyngier <m...@kernel.org>
Cc: Linus Walleij <linus.wall...@linaro.org>
Cc: afzal mohammed <afzal.mohd...@gmail.com>
Cc: Lina Iyer <il...@codeaurora.org>
Cc: "Gustavo A. R. Silva" <gust...@embeddedor.com>
Cc: Maulik Shah <mks...@codeaurora.org>
Cc: Al Viro <v...@zeniv.linux.org.uk>
Cc: Jonathan Corbet <cor...@lwn.net>
Cc: Pawan Gupta <pawan.kumar.gu...@linux.intel.com>
Cc: Mike Kravetz <mike.krav...@oracle.com>
Cc: Oliver Neukum <oneu...@suse.com>
To: linux-kernel@vger.kernel.org
Cc: linux-...@vger.kernel.org
Cc: ke...@lists.infradead.org
---
 Documentation/admin-guide/kernel-parameters.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/admin-guide/kernel-parameters.txt 
b/Documentation/admin-guide/kernel-parameters.txt
index a106874..0a25a05 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -2009,6 +2009,9 @@
                        for it. Also check all handlers each timer
                        interrupt. Intended to get systems with badly broken
                        firmware running.
+       irqflood_suppress       [HW]
+                       When a irq fully occupies a cpu in a long time, 
suppressing
+                       it to make kernel move on. It is useful in the capture 
kernel.
 
        isapnp=         [ISAPNP]
                        Format: <RDP>,<reset>,<pci_scan>,<verbosity>
-- 
2.7.5

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