patch-2.4.13 linux/include/linux/blkdev.h

• Lines: 37
• Date: Tue Oct 23 22:01:01 2001
• Orig file: v2.4.12/linux/include/linux/blkdev.h
• Orig date: Thu Oct 18 13:49:40 2001

diff -u --recursive --new-file v2.4.12/linux/include/linux/blkdev.h linux/include/linux/blkdev.h
@@ -19,7 +19,6 @@
 struct request {
 	struct list_head queue;
 	int elevator_sequence;
-	struct list_head table;
 
 	volatile int rq_status;	/* should split this into a few status bits */
 #define RQ_INACTIVE		(-1)
@@ -202,5 +201,28 @@
 
 #define blk_finished_io(nsects)	do { } while (0)
 #define blk_started_io(nsects)	do { } while (0)
+
+static inline unsigned int blksize_bits(unsigned int size)
+{
+	unsigned int bits = 8;
+	do {
+		bits++;
+		size >>= 1;
+	} while (size > 256);
+	return bits;
+}
+
+static inline unsigned int block_size(kdev_t dev)
+{
+	int retval = BLOCK_SIZE;
+	int major = MAJOR(dev);
+
+	if (blksize_size[major]) {
+		int minor = MINOR(dev);
+		if (blksize_size[major][minor])
+			retval = blksize_size[major][minor];
+	}
+	return retval;
+}
 
 #endif