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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2017-02-06 15:56:14 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2017-07-26 08:25:13 +0200 |
| commit | 45be0a02f8110a13502fac6167a893c7c0eff432 (patch) | |
| tree | 89c8d719e24483081dd465b1d65754f6677cd0fc /drivers/s390/char | |
| parent | a01ef3082d9c216f1187ea308c25e5dd486afe3d (diff) | |
| download | lwn-45be0a02f8110a13502fac6167a893c7c0eff432.tar.gz lwn-45be0a02f8110a13502fac6167a893c7c0eff432.zip | |
s390/sclp: single increment assignment control
Set a new option bit of the attach command to speed up memory
hotplug.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/char')
| -rw-r--r-- | drivers/s390/char/sclp_cmd.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c index b9c5522b8a68..dff8b94871f0 100644 --- a/drivers/s390/char/sclp_cmd.c +++ b/drivers/s390/char/sclp_cmd.c @@ -252,6 +252,7 @@ static int sclp_attach_storage(u8 id) if (!sccb) return -ENOMEM; sccb->header.length = PAGE_SIZE; + sccb->header.function_code = 0x40; rc = sclp_sync_request_timeout(0x00080001 | id << 8, sccb, SCLP_QUEUE_INTERVAL); if (rc) |