[PATCH] QUOTA: Have <linux/quota.h> include <linux/rwsem.h> explicitly

Since quota.h declares a R/W semaphore, it should include rwsem.h
explicitly.
Signed-off-by: NRobert P. J. Day <rpjday@mindspring.com>
Acked-by: NJan Kara <jack@suse.cz>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

include/linux/quota.h

@@ -132,6 +132,7 @@ struct if_dqinfo {
 
 #ifdef __KERNEL__
 #include <linux/spinlock.h>
+#include <linux/rwsem.h>
 #include <linux/mutex.h>
 
 #include <linux/dqblk_xfs.h>