From d4515646699b6ad7b1a98ceb871296b957f3ef47 Mon Sep 17 00:00:00 2001 From: Soeren Sandmann Date: Wed, 28 Oct 2009 18:56:35 +0100 Subject: [PATCH] highmem: Fix debug_kmap_atomic() to also handle KM_IRQ_PTE, KM_NMI, and KM_NMI_PTE Previously calling debug_kmap_atomic() with these types would cause spurious warnings. (triggered by SysProf using perf events) Signed-off-by: Soeren Sandmann Pedersen Cc: Linus Torvalds Cc: a.p.zijlstra@chello.nl Cc: # .31.x LKML-Reference: Signed-off-by: Ingo Molnar --- mm/highmem.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/mm/highmem.c b/mm/highmem.c index 33587de6b87..9c1e627f282 100644 --- a/mm/highmem.c +++ b/mm/highmem.c @@ -432,10 +432,15 @@ void debug_kmap_atomic(enum km_type type) return; if (unlikely(in_interrupt())) { - if (in_irq()) { + if (in_nmi()) { + if (type != KM_NMI && type != KM_NMI_PTE) { + WARN_ON(1); + warn_count--; + } + } else if (in_irq()) { if (type != KM_IRQ0 && type != KM_IRQ1 && type != KM_BIO_SRC_IRQ && type != KM_BIO_DST_IRQ && - type != KM_BOUNCE_READ) { + type != KM_BOUNCE_READ && type != KM_IRQ_PTE) { WARN_ON(1); warn_count--; } @@ -452,7 +457,9 @@ void debug_kmap_atomic(enum km_type type) } if (type == KM_IRQ0 || type == KM_IRQ1 || type == KM_BOUNCE_READ || - type == KM_BIO_SRC_IRQ || type == KM_BIO_DST_IRQ) { + type == KM_BIO_SRC_IRQ || type == KM_BIO_DST_IRQ || + type == KM_IRQ_PTE || type == KM_NMI || + type == KM_NMI_PTE ) { if (!irqs_disabled()) { WARN_ON(1); warn_count--;