[Xen-devel] [PATCH] block/xen-blkback: Deinline put_free_pages, save 645 bytes

[Denys Vlasenko <dvlasenk@xxxxxxxxxx>]

This function compiles to 170 bytes of machine code. 7 callsites.

This function has a spinlocked code section,
which is significantly more expensive than call/return overhead.

Signed-off-by: Denys Vlasenko <dvlasenk@xxxxxxxxxx>
CC: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
CC: Roger Pau Monné <roger.pau@xxxxxxxxxx>
CC: xen-devel@xxxxxxxxxxxxxxxxxxxx
CC: linux-kernel@xxxxxxxxxxxxxxx
---
 drivers/block/xen-blkback/blkback.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/xen-blkback/blkback.c 
b/drivers/block/xen-blkback/blkback.c
index 4809c15..86798b4 100644
--- a/drivers/block/xen-blkback/blkback.c
+++ b/drivers/block/xen-blkback/blkback.c
@@ -142,7 +142,7 @@ static inline int get_free_page(struct xen_blkif_ring 
*ring, struct page **page)
        return 0;
 }
 
-static inline void put_free_pages(struct xen_blkif_ring *ring, struct page 
**page,
+static void put_free_pages(struct xen_blkif_ring *ring, struct page **page,
                                   int num)
 {
        unsigned long flags;
-- 
2.5.0


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