| From: Thomas Gleixner <tglx@linutronix.de> |
| Date: Fri, 3 Jul 2009 08:44:34 -0500 |
| Subject: mm/scatterlist: Do not disable irqs on RT |
| |
| For -RT it is enough to keep pagefault disabled (which is currently handled by |
| kmap_atomic()). |
| |
| Signed-off-by: Thomas Gleixner <tglx@linutronix.de> |
| --- |
| lib/scatterlist.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| --- a/lib/scatterlist.c |
| +++ b/lib/scatterlist.c |
| @@ -620,7 +620,7 @@ void sg_miter_stop(struct sg_mapping_ite |
| flush_kernel_dcache_page(miter->page); |
| |
| if (miter->__flags & SG_MITER_ATOMIC) { |
| - WARN_ON_ONCE(preemptible()); |
| + WARN_ON_ONCE(!pagefault_disabled()); |
| kunmap_atomic(miter->addr); |
| } else |
| kunmap(miter->page); |
