From: Marcelo Feitoza Parisi <marcelo@feitoza.com.br>
Subject: [KJ] [PATCH] drivers/ide/ide-tape.c : Use of time_after macro

Use of the time_after() macro, defined at linux/jiffies.h, which deal
with wrapping correctly and are nicer to read.

Signed-off-by: Marcelo Feitoza Parisi <marcelo@feitoza.com.br>

---
 ide-tape.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletion(-)

Index: quilt/drivers/ide/ide-tape.c
===================================================================
--- quilt.orig/drivers/ide/ide-tape.c
+++ quilt/drivers/ide/ide-tape.c
@@ -2495,7 +2495,8 @@ static ide_startstop_t idetape_do_reques
 			} else {
 				return ide_do_reset(drive);
 			}
-		} else if (jiffies - tape->dsc_polling_start > IDETAPE_DSC_MA_THRESHOLD)
+		} else if (time_after(jiffies, tape->dsc_polling_start
+					+ IDETAPE_DSC_MA_THRESHOLD))
 			tape->dsc_polling_frequency = IDETAPE_DSC_MA_SLOW;
 		idetape_postpone_request(drive);
 		return ide_stopped;