[PATCH 4.5 109/238] mtip32xx: Print exact time when an internal command is interrupted

From: Greg Kroah-Hartman
Date: Sun Apr 10 2016 - 16:27:39 EST


4.5-stable review patch. If anyone has any objections, please let me know.

------------------

From: Asai Thambi SP <asamymuthupa@xxxxxxxxxx>

commit 5b7e0a8ac85e2dfd83830dc9e0b3554d153a37e3 upstream.

Print exact time when an internal command is interrupted.

Signed-off-by: Selvan Mani <smani@xxxxxxxxxx>
Signed-off-by: Rajesh Kumar Sambandam <rsambandam@xxxxxxxxxx>
Signed-off-by: Asai Thambi S P <asamymuthupa@xxxxxxxxxx>
Signed-off-by: Jens Axboe <axboe@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/block/mtip32xx/mtip32xx.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -1092,6 +1092,7 @@ static int mtip_exec_internal_command(st
struct mtip_cmd *int_cmd;
struct driver_data *dd = port->dd;
int rv = 0;
+ unsigned long start;

/* Make sure the buffer is 8 byte aligned. This is asic specific. */
if (buffer & 0x00000007) {
@@ -1155,6 +1156,8 @@ static int mtip_exec_internal_command(st
/* Populate the command header */
int_cmd->command_header->byte_count = 0;

+ start = jiffies;
+
/* Issue the command to the hardware */
mtip_issue_non_ncq_command(port, MTIP_TAG_INTERNAL);

@@ -1165,8 +1168,9 @@ static int mtip_exec_internal_command(st
msecs_to_jiffies(timeout))) <= 0) {
if (rv == -ERESTARTSYS) { /* interrupted */
dev_err(&dd->pdev->dev,
- "Internal command [%02X] was interrupted after %lu ms\n",
- fis->command, timeout);
+ "Internal command [%02X] was interrupted after %u ms\n",
+ fis->command,
+ jiffies_to_msecs(jiffies - start));
rv = -EINTR;
goto exec_ic_exit;
} else if (rv == 0) /* timeout */