From: Hannes Reinecke <hare@suse.de>
To: James Bottomley <jbottomley@parallels.com>
Cc: Sean Stewart <sean.stewart@netapp.com>,
Martin George <marting@netapp.com>,
linux-scsi@vger.kernel.org, Hannes Reinecke <hare@suse.de>
Subject: [PATCH 05/16] scsi_dh_alua: put sense buffer on stack
Date: Fri, 31 Jan 2014 10:29:49 +0100 [thread overview]
Message-ID: <1391160600-19652-6-git-send-email-hare@suse.de> (raw)
In-Reply-To: <1391160600-19652-1-git-send-email-hare@suse.de>
There is no need to have the sense buffer as part of the per-device
structure, we can put the sense buffer on the stack.
Signed-off-by: Hannes Reinecke <hare@suse.de>
---
drivers/scsi/device_handler/scsi_dh_alua.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index ef92008..adc77ef 100644
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -74,8 +74,6 @@ struct alua_dh_data {
unsigned char *buff;
int bufflen;
unsigned char transition_tmo;
- unsigned char sense[SCSI_SENSE_BUFFERSIZE];
- int senselen;
struct scsi_device *sdev;
activate_complete callback_fn;
void *callback_data;
@@ -325,6 +323,7 @@ static int alua_check_tpgs(struct scsi_device *sdev, struct alua_dh_data *h)
static int alua_vpd_inquiry(struct scsi_device *sdev, struct alua_dh_data *h)
{
int len, timeout = ALUA_FAILOVER_TIMEOUT;
+ unsigned char sense[SCSI_SENSE_BUFFERSIZE];
struct scsi_sense_hdr sense_hdr;
unsigned retval;
unsigned char *d;
@@ -332,12 +331,12 @@ static int alua_vpd_inquiry(struct scsi_device *sdev, struct alua_dh_data *h)
expiry = round_jiffies_up(jiffies + timeout);
retry:
- retval = submit_vpd_inquiry(sdev, h->buff, h->bufflen, h->sense);
+ retval = submit_vpd_inquiry(sdev, h->buff, h->bufflen, sense);
if (retval) {
unsigned err;
if (!(driver_byte(retval) & DRIVER_SENSE) ||
- !scsi_normalize_sense(h->sense, SCSI_SENSE_BUFFERSIZE,
+ !scsi_normalize_sense(sense, SCSI_SENSE_BUFFERSIZE,
&sense_hdr)) {
sdev_printk(KERN_INFO, sdev,
"%s: evpd inquiry failed, ", ALUA_DH_NAME);
@@ -519,6 +518,7 @@ static int alua_check_sense(struct scsi_device *sdev,
*/
static int alua_rtpg(struct scsi_device *sdev, struct alua_dh_data *h, int wait_for_transition)
{
+ unsigned char sense[SCSI_SENSE_BUFFERSIZE];
struct scsi_sense_hdr sense_hdr;
int len, k, off, valid_states = 0;
unsigned char *ucp;
@@ -533,11 +533,11 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_dh_data *h, int wait_
expiry = round_jiffies_up(jiffies + h->transition_tmo * HZ);
retry:
- retval = submit_rtpg(sdev, h->buff, h->bufflen, h->sense, h->flags);
+ retval = submit_rtpg(sdev, h->buff, h->bufflen, sense, h->flags);
if (retval) {
if (!(driver_byte(retval) & DRIVER_SENSE) ||
- !scsi_normalize_sense(h->sense, SCSI_SENSE_BUFFERSIZE,
+ !scsi_normalize_sense(sense, SCSI_SENSE_BUFFERSIZE,
&sense_hdr)) {
sdev_printk(KERN_INFO, sdev, "%s: rtpg failed, ",
ALUA_DH_NAME);
--
1.7.12.4
next prev parent reply other threads:[~2014-01-31 9:30 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-31 9:29 [PATCHv2 00/16] scsi_dh_alua updates Hannes Reinecke
2014-01-31 9:29 ` [PATCH 01/16] scsi_dh_alua: Improve error handling Hannes Reinecke
2014-02-14 11:16 ` Bart Van Assche
2014-02-14 11:32 ` Hannes Reinecke
2014-03-06 23:43 ` Jeremy Linton
2014-03-07 7:12 ` Hannes Reinecke
2014-03-07 15:46 ` Jeremy Linton
2014-01-31 9:29 ` [PATCH 02/16] scsi_dh_alua: use flag for RTPG extended header Hannes Reinecke
2014-01-31 9:29 ` [PATCH 03/16] scsi_dh_alua: Pass buffer as function argument Hannes Reinecke
2014-02-14 11:22 ` Bart Van Assche
2014-02-14 11:36 ` Hannes Reinecke
2014-01-31 9:29 ` [PATCH 04/16] scsi_dh_alua: Make stpg synchronous Hannes Reinecke
2014-02-07 1:24 ` Mike Christie
2014-02-07 1:54 ` Mike Christie
2014-02-12 15:29 ` Hannes Reinecke
2014-02-12 16:11 ` Mike Christie
2014-02-12 16:26 ` Mike Christie
2014-02-12 17:31 ` Mike Christie
2014-02-13 9:31 ` Hannes Reinecke
2014-02-14 11:37 ` Bart Van Assche
2014-02-14 11:53 ` Hannes Reinecke
2014-02-14 18:21 ` Mike Christie
2014-02-19 8:09 ` Hannes Reinecke
2014-02-14 17:17 ` Mike Christie
2014-02-14 11:27 ` Bart Van Assche
2014-02-14 11:38 ` Hannes Reinecke
2014-01-31 9:29 ` Hannes Reinecke [this message]
2014-01-31 9:29 ` [PATCH 06/16] scsi_dh_alua: use local buffer for VPD inquiry Hannes Reinecke
2014-02-13 9:51 ` Maurizio Lombardi
2014-02-13 10:10 ` Hannes Reinecke
2014-02-14 11:41 ` Bart Van Assche
2014-01-31 9:29 ` [PATCH 07/16] scsi_dh_alua: Use separate alua_port_group structure Hannes Reinecke
2014-02-14 11:56 ` Bart Van Assche
2014-02-14 12:16 ` Hannes Reinecke
2014-02-14 16:12 ` Hannes Reinecke
2014-02-14 17:42 ` Bart Van Assche
2014-01-31 9:29 ` [PATCH 08/16] scsi_dh_alua: parse target device id Hannes Reinecke
2014-02-14 12:09 ` Bart Van Assche
2014-02-14 12:21 ` Hannes Reinecke
2014-02-17 14:05 ` Bart Van Assche
2014-02-17 14:09 ` Hannes Reinecke
2014-02-17 14:27 ` Bart Van Assche
2014-02-17 14:33 ` Hannes Reinecke
2014-02-18 7:26 ` Bart Van Assche
2014-01-31 9:29 ` [PATCH 09/16] scsi_dh_alua: simplify sense code handling Hannes Reinecke
2014-01-31 9:29 ` [PATCH 10/16] scsi_dh_alua: Do not attach to management devices Hannes Reinecke
2014-01-31 9:29 ` [PATCH 11/16] scsi_dh_alua: multipath failover fails with error 15 Hannes Reinecke
2015-03-30 12:30 ` Bart Van Assche
2015-03-30 12:32 ` Hannes Reinecke
2014-01-31 9:29 ` [PATCH 12/16] scsi_dh: return individual errors in scsi_dh_activate() Hannes Reinecke
2014-01-31 9:29 ` [PATCH 13/16] scsi_dh_alua: Clarify logging message Hannes Reinecke
2014-01-31 9:29 ` [PATCH 14/16] scsi_dh: invoke callback if ->activate is not present Hannes Reinecke
2014-01-31 9:29 ` [PATCH 15/16] scsi_dh_alua: revert commit a8e5a2d593cbfccf530c3382c2c328d2edaa7b66 Hannes Reinecke
2014-01-31 9:30 ` [PATCH 16/16] scsi_dh_alua: Use workqueue for RTPG Hannes Reinecke
2014-02-14 19:03 ` Bart Van Assche
2014-04-29 21:47 ` Stewart, Sean
2014-05-08 7:04 ` Hannes Reinecke
2014-03-02 9:10 ` [PATCHv2 00/16] scsi_dh_alua updates Bart Van Assche
-- strict thread matches above, loose matches on Subject: below --
2013-12-20 12:13 [PATCH " Hannes Reinecke
2013-12-20 12:13 ` [PATCH 05/16] scsi_dh_alua: put sense buffer on stack Hannes Reinecke
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