from mozilla/lmdb : Use sys/cachectl.h rather than asm/cachectl.h on mips (b7df2ca)

libraries/liblmdb/mdb.c

@@ -114,8 +114,7 @@ static NtCloseFunc *NtClose;
 
 #if defined(__mips) && defined(__linux)
 /* MIPS has cache coherency issues, requires explicit cache control */
-#include <asm/cachectl.h>
+#include <sys/cachectl.h>
-extern int cacheflush(char *addr, int nbytes, int cache);
 #define CACHEFLUSH(addr, bytes, cache)	cacheflush(addr, bytes, cache)
 #else
 #define CACHEFLUSH(addr, bytes, cache)