diff --git a/include/linux/bio.h b/include/linux/bio.h
index 99728320cc0..2aa283ab062 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -456,7 +456,8 @@ extern struct biovec_slab bvec_slabs[BIOVEC_NR_POOLS] __read_mostly;
  *
  * This function MUST be inlined - it plays with the CPU interrupt flags.
  */
-static inline char *bvec_kmap_irq(struct bio_vec *bvec, unsigned long *flags)
+static __always_inline char *bvec_kmap_irq(struct bio_vec *bvec,
+		unsigned long *flags)
 {
 	unsigned long addr;
 
@@ -472,7 +473,8 @@ static inline char *bvec_kmap_irq(struct bio_vec *bvec, unsigned long *flags)
 	return (char *) addr + bvec->bv_offset;
 }
 
-static inline void bvec_kunmap_irq(char *buffer, unsigned long *flags)
+static __always_inline void bvec_kunmap_irq(char *buffer,
+		unsigned long *flags)
 {
 	unsigned long ptr = (unsigned long) buffer & PAGE_MASK;