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authorHannes Reinecke <hare@suse.de>2013-01-30 09:26:12 +0000
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2013-07-01 17:31:17 +0200
commit1f1ee9ad6b298400c7a44f860231ac1d3cb7bfd6 (patch)
tree969a5275d669b6af5ae09d173e19e19256e74903 /drivers/s390/block/dasd_int.h
parents390/dasd: Clarify comment (diff)
downloadlinux-dev-1f1ee9ad6b298400c7a44f860231ac1d3cb7bfd6.tar.xz
linux-dev-1f1ee9ad6b298400c7a44f860231ac1d3cb7bfd6.zip
s390/dasd: make number of retries configurable
Instead of having the number of retries hard-coded in the various functions we should be using a default retry value, which can be modified via sysfs. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/block/dasd_int.h')
-rw-r--r--drivers/s390/block/dasd_int.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h
index 0785bd9bd5b6..ad42075868c7 100644
--- a/drivers/s390/block/dasd_int.h
+++ b/drivers/s390/block/dasd_int.h
@@ -224,6 +224,8 @@ struct dasd_ccw_req {
/* default expiration time*/
#define DASD_EXPIRES 300
#define DASD_EXPIRES_MAX 40000000
+#define DASD_RETRIES 256
+#define DASD_RETRIES_MAX 32768
/* per dasd_ccw_req flags */
#define DASD_CQR_FLAGS_USE_ERP 0 /* use ERP for this request */
@@ -466,6 +468,7 @@ struct dasd_device {
/* default expiration time in s */
unsigned long default_expires;
+ unsigned long default_retries;
struct dentry *debugfs_dentry;
struct dasd_profile profile;