[3.19.y-ckt stable] Patch "mtip32xx: Print exact time when an internal command is interrupted" has been added to the 3.19.y-ckt tree

[Kamal Mostafa]

This is a note to let you know that I have just added a patch titled

    mtip32xx: Print exact time when an internal command is interrupted

to the linux-3.19.y-queue branch of the 3.19.y-ckt extended stable tree 
which can be found at:

    http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.19.y-queue

This patch is scheduled to be released in version 3.19.8-ckt18.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.19.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

---8<------------------------------------------------------------

>From 0a2950d69e7c830c8a7a3813cba744d7760747b4 Mon Sep 17 00:00:00 2001
From: Asai Thambi SP <asamymuthupa at micron.com>
Date: Wed, 24 Feb 2016 21:16:38 -0800
Subject: mtip32xx: Print exact time when an internal command is interrupted

commit 5b7e0a8ac85e2dfd83830dc9e0b3554d153a37e3 upstream.

Print exact time when an internal command is interrupted.

Signed-off-by: Selvan Mani <smani at micron.com>
Signed-off-by: Rajesh Kumar Sambandam <rsambandam at micron.com>
Signed-off-by: Asai Thambi S P <asamymuthupa at micron.com>
Signed-off-by: Jens Axboe <axboe at fb.com>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 drivers/block/mtip32xx/mtip32xx.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index d221429..64f4b9c 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -1095,6 +1095,7 @@ static int mtip_exec_internal_command(struct mtip_port *port,
 	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) {
@@ -1157,6 +1158,8 @@ static int mtip_exec_internal_command(struct mtip_port *port,
 	/* 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);

@@ -1167,8 +1170,9 @@ static int mtip_exec_internal_command(struct mtip_port *port,
 				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 */
--
2.7.4