[PATCH] drivers/block: fix-up schedule_timeout() usage

Use schedule_timeout_{un,}interruptible() instead of
set_current_state()/schedule_timeout() to reduce kernel size.
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Cc: Jens Axboe <axboe@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/block/cciss.c

@@ -1713,10 +1713,9 @@ static unsigned long pollcomplete(int ctlr)
 
 	for (i = 20 * HZ; i > 0; i--) {
 		done = hba[ctlr]->access.command_completed(hba[ctlr]);
-		if (done == FIFO_EMPTY) {
-			set_current_state(TASK_UNINTERRUPTIBLE);
-			schedule_timeout(1);
-		} else
+		if (done == FIFO_EMPTY)
+			schedule_timeout_uninterruptible(1);
+		else
 			return (done);
 	}
 	/* Invalid address to tell caller we ran out of time */

drivers/block/paride/pcd.c

@@ -516,8 +516,7 @@ static int pcd_tray_move(struct cdrom_device_info *cdi, int position)
 
 static void pcd_sleep(int cs)
 {
-	current->state = TASK_INTERRUPTIBLE;
-	schedule_timeout(cs);
+	schedule_timeout_interruptible(cs);
 }
 
 static int pcd_reset(struct pcd_unit *cd)

drivers/block/paride/pf.c

@@ -507,8 +507,7 @@ static void pf_eject(struct pf_unit *pf)
 
 static void pf_sleep(int cs)
 {
-	current->state = TASK_INTERRUPTIBLE;
-	schedule_timeout(cs);
+	schedule_timeout_interruptible(cs);
 }
 
 /* the ATAPI standard actually specifies the contents of all 7 registers

drivers/block/paride/pg.c

@@ -276,8 +276,7 @@ static inline u8 DRIVE(struct pg *dev)
 
 static void pg_sleep(int cs)
 {
-	current->state = TASK_INTERRUPTIBLE;
-	schedule_timeout(cs);
+	schedule_timeout_interruptible(cs);
 }
 
 static int pg_wait(struct pg *dev, int go, int stop, unsigned long tmo, char *msg)

drivers/block/paride/pt.c

@@ -383,8 +383,7 @@ static int pt_atapi(struct pt_unit *tape, char *cmd, int dlen, char *buf, char *
 
 static void pt_sleep(int cs)
 {
-	current->state = TASK_INTERRUPTIBLE;
-	schedule_timeout(cs);
+	schedule_timeout_interruptible(cs);
 }
 
 static int pt_poll_dsc(struct pt_unit *tape, int pause, int tmo, char *msg)

drivers/block/swim3.c

@@ -834,8 +834,7 @@ static int fd_eject(struct floppy_state *fs)
 			break;
 		}
 		swim3_select(fs, RELAX);
-		current->state = TASK_INTERRUPTIBLE;
-		schedule_timeout(1);
+		schedule_timeout_interruptible(1);
 		if (swim3_readbit(fs, DISK_IN) == 0)
 			break;
 	}
@@ -906,8 +905,7 @@ static int floppy_open(struct inode *inode, struct file *filp)
 				break;
 			}
 			swim3_select(fs, RELAX);
-			current->state = TASK_INTERRUPTIBLE;
-			schedule_timeout(1);
+			schedule_timeout_interruptible(1);
 		}
 		if (err == 0 && (swim3_readbit(fs, SEEK_COMPLETE) == 0
 				 || swim3_readbit(fs, DISK_IN) == 0))
@@ -992,8 +990,7 @@ static int floppy_revalidate(struct gendisk *disk)
 		if (signal_pending(current))
 			break;
 		swim3_select(fs, RELAX);
-		current->state = TASK_INTERRUPTIBLE;
-		schedule_timeout(1);
+		schedule_timeout_interruptible(1);
 	}
 	ret = swim3_readbit(fs, SEEK_COMPLETE) == 0
 		|| swim3_readbit(fs, DISK_IN) == 0;

drivers/block/swim_iop.c

@@ -338,8 +338,7 @@ static int swimiop_eject(struct floppy_state *fs)
 			err = -EINTR;
 			break;
 		}
-		current->state = TASK_INTERRUPTIBLE;
-		schedule_timeout(1);
+		schedule_timeout_interruptible(1);
 	}
 	release_drive(fs);
 	return cmd->error;

drivers/block/xd.c

@@ -530,10 +530,8 @@ static inline u_char xd_waitport (u_short port,u_char flags,u_char mask,u_long t
 	int success;
 
 	xdc_busy = 1;
-	while ((success = ((inb(port) & mask) != flags)) && time_before(jiffies, expiry)) {
-		set_current_state(TASK_UNINTERRUPTIBLE);
-		schedule_timeout(1);
-	}
+	while ((success = ((inb(port) & mask) != flags)) && time_before(jiffies, expiry))
+		schedule_timeout_uninterruptible(1);
 	xdc_busy = 0;
 	return (success);
 }