include/linux/backing-dev-defs.h: shrink struct backing_dev_info

Move the 4-byte `capabilities' field next to other 4-byte things. Shrinks sizeof(backing_dev_info) by 8 bytes on x86_64. Reviewed-by: Jens Axboe <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
thoughtpolice · Dec 13, 2016 · 8db378a · 8db378a
1 parent 9491ae4
commit 8db378a
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/include/linux/backing-dev-defs.h b/include/linux/backing-dev-defs.h
@@ -137,12 +137,12 @@ struct backing_dev_info {
 	struct list_head bdi_list;
 	unsigned long ra_pages;	/* max readahead in PAGE_SIZE units */
 	unsigned long io_pages;	/* max allowed IO size */
-	unsigned int capabilities; /* Device capabilities */
 	congested_fn *congested_fn; /* Function pointer if device is md/dm */
 	void *congested_data;	/* Pointer to aux data for congested func */
 
 	char *name;
 
+	unsigned int capabilities; /* Device capabilities */
 	unsigned int min_ratio;
 	unsigned int max_ratio, max_prop_frac;