diff options
| author | Peter Oberparleiter <peter.oberparleiter@de.ibm.com> | 2009-12-07 12:51:40 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2009-12-07 12:51:33 +0100 |
| commit | de1b04388f63cbddf91d9f6c50c29be7232881ca (patch) | |
| tree | 2a2500ab1093bb77b81e84ae56ab3aae1501c52a /drivers/s390/cio/device_id.c | |
| parent | [S390] cio: change locking in io_subchannel_remove (diff) | |
| download | linux-de1b04388f63cbddf91d9f6c50c29be7232881ca.tar.xz linux-de1b04388f63cbddf91d9f6c50c29be7232881ca.zip | |
[S390] cio: improve error recovery for internal I/Os
Improve error recovery for internal I/Os by repeating each I/O
256 times per path to cope with long-running non-permanent error
conditions. Also retry each path twice to cope with link flapping,
i.e. single paths becoming unavailable in the order in which they
are tried.
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio/device_id.c')
| -rw-r--r-- | drivers/s390/cio/device_id.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/s390/cio/device_id.c b/drivers/s390/cio/device_id.c index 4728644ed85c..78a0b43862c5 100644 --- a/drivers/s390/cio/device_id.c +++ b/drivers/s390/cio/device_id.c @@ -21,7 +21,7 @@ #include "device.h" #include "io_sch.h" -#define SENSE_ID_RETRIES 5 +#define SENSE_ID_RETRIES 256 #define SENSE_ID_TIMEOUT (10 * HZ) #define SENSE_ID_MIN_LEN 4 #define SENSE_ID_BASIC_LEN 7 |