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authorShijith Thotton <sthotton@marvell.com>2019-07-05 07:56:20 +0000
committerThomas Gleixner <tglx@linutronix.de>2019-07-06 10:40:19 +0200
commitc09cb1293523dd786ae54a12fd88001542cba2f6 (patch)
treed8844077305fe22afc3c14a56da1969153d7419f /Documentation
parentMerge tag 'irqchip-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core (diff)
downloadlinux-dev-c09cb1293523dd786ae54a12fd88001542cba2f6.tar.xz
linux-dev-c09cb1293523dd786ae54a12fd88001542cba2f6.zip
genirq: Update irq stats from NMI handlers
The NMI handlers handle_percpu_devid_fasteoi_nmi() and handle_fasteoi_nmi() do not update the interrupt counts. Due to that the NMI interrupt count does not show up correctly in /proc/interrupts. Add the statistics and treat the NMI handlers in the same way as per cpu interrupts and prevent them from updating irq_desc::tot_count as this might be corrupted due to concurrency. [ tglx: Massaged changelog ] Fixes: 2dcf1fbcad35 ("genirq: Provide NMI handlers") Signed-off-by: Shijith Thotton <sthotton@marvell.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/1562313336-11888-1-git-send-email-sthotton@marvell.com
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