FAQ Search Today's Posts Mark Forums Read
» Video Reviews

» Linux Archive

Linux-archive is a website aiming to archive linux email lists and to make them easily accessible for linux users/developers.


» Sponsor

» Partners

» Sponsor

Go Back   Linux Archive > Redhat > Device-mapper Development

 
 
LinkBack Thread Tools
 
Old 04-02-2012, 04:43 PM
Hannes Reinecke
 
Default scsi_dh: Allow NULL hardware handler name in scsi_dh_attach()

This patch allows to pass in a NULL hardware handler to
scsi_dh_attach(), causing the reference count of the existing
hardware handler to be increased.
An error will be returned if no hardware handler is attached.

Signed-off-by: Hannes Reinecke <hare@suse.de>
---
drivers/scsi/device_handler/scsi_dh.c | 8 ++++++--
1 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/device_handler/scsi_dh.c b/drivers/scsi/device_handler/scsi_dh.c
index 48e46f5..77fa67e 100644
--- a/drivers/scsi/device_handler/scsi_dh.c
+++ b/drivers/scsi/device_handler/scsi_dh.c
@@ -475,10 +475,14 @@ int scsi_dh_attach(struct request_queue *q, const char *name)
{
unsigned long flags;
struct scsi_device *sdev;
- struct scsi_device_handler *scsi_dh;
+ struct scsi_device_handler *scsi_dh = NULL;
int err = 0;

- scsi_dh = get_device_handler(name);
+ if (name) {
+ scsi_dh = get_device_handler(name);
+ } else if (sdev->scsi_dh_data) {
+ scsi_dh = sdev->scsi_dh_data->scsi_dh;
+ }
if (!scsi_dh)
return -EINVAL;

--
1.7.7

--
dm-devel mailing list
dm-devel@redhat.com
https://www.redhat.com/mailman/listinfo/dm-devel
 
Old 05-08-2012, 02:18 PM
Hannes Reinecke
 
Default scsi_dh: Allow NULL hardware handler name in scsi_dh_attach()

This patch allows to pass in a NULL hardware handler to
scsi_dh_attach(), causing the reference count of the existing
hardware handler to be increased.
An error will be returned if no hardware handler is attached.

Signed-off-by: Hannes Reinecke <hare@suse.de>
---
drivers/scsi/device_handler/scsi_dh.c | 8 ++++++--
1 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/device_handler/scsi_dh.c b/drivers/scsi/device_handler/scsi_dh.c
index 48e46f5..9820f1f 100644
--- a/drivers/scsi/device_handler/scsi_dh.c
+++ b/drivers/scsi/device_handler/scsi_dh.c
@@ -475,10 +475,14 @@ int scsi_dh_attach(struct request_queue *q, const char *name)
{
unsigned long flags;
struct scsi_device *sdev;
- struct scsi_device_handler *scsi_dh;
+ struct scsi_device_handler *scsi_dh = NULL;
int err = 0;

- scsi_dh = get_device_handler(name);
+ if (name) {
+ scsi_dh = get_device_handler(name);
+ } else if (sdev && sdev->scsi_dh_data) {
+ scsi_dh = sdev->scsi_dh_data->scsi_dh;
+ }
if (!scsi_dh)
return -EINVAL;

--
1.6.0.2

--
dm-devel mailing list
dm-devel@redhat.com
https://www.redhat.com/mailman/listinfo/dm-devel
 

Thread Tools




All times are GMT. The time now is 09:51 AM.

VBulletin, Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO ©2007, Crawlability, Inc.
Copyright 2007 - 2008, www.linux-archive.org