1 files changed, 7 insertions, 1 deletions

diff --git a/include/linux/ide.h b/include/linux/ide.h
index 336d6e509f59..a6dbb51ecd7b 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -917,7 +917,7 @@ typedef struct hwif_s {
         unsigned dma;
 
         void (*led_act)(void *data, int rw);
-} ide_hwif_t;
+} ____cacheline_maxaligned_in_smp ide_hwif_t;
 
 /*
  *  internal ide interrupt handler type
@@ -1501,4 +1501,10 @@ extern struct bus_type ide_bus_type;
 #define ide_id_has_flush_cache_ext(id)  \
         (((id)->cfs_enable_2 & 0x2400) == 0x2400)
 
+static inline int hwif_to_node(ide_hwif_t *hwif)
+{
+        struct pci_dev *dev = hwif->pci_dev;
+        return dev ? pcibus_to_node(dev->bus) : -1;
+}
+
 #endif /* _IDE_H */