Do not __always_inline bvec_kmap_irq() and bvec_kunmap_irq()

So remove both the comment and the inline requirement, going back to the
inline hint.

Signed-off-by: Alberto Bertogli <albertito@blitiri.com.ar>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 5be93f1..474792b 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -450,11 +450,8 @@
 /*
  * remember never ever reenable interrupts between a bvec_kmap_irq and
  * bvec_kunmap_irq!
- *
- * This function MUST be inlined - it plays with the CPU interrupt flags.
  */
-static __always_inline char *bvec_kmap_irq(struct bio_vec *bvec,
-		unsigned long *flags)
+static inline char *bvec_kmap_irq(struct bio_vec *bvec, unsigned long *flags)
 {
 	unsigned long addr;
 
@@ -470,8 +467,7 @@
 	return (char *) addr + bvec->bv_offset;
 }
 
-static __always_inline void bvec_kunmap_irq(char *buffer,
-		unsigned long *flags)
+static inline void bvec_kunmap_irq(char *buffer, unsigned long *flags)
 {
 	unsigned long ptr = (unsigned long) buffer & PAGE_MASK;