diff options
Diffstat (limited to 'drivers/s390/char/sclp_cmd.c')
| -rw-r--r-- | drivers/s390/char/sclp_cmd.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c index f6e97f0830f6..7ebe89890a9b 100644 --- a/drivers/s390/char/sclp_cmd.c +++ b/drivers/s390/char/sclp_cmd.c @@ -27,6 +27,7 @@ #include <asm/page.h> #include <asm/sclp.h> #include <asm/numa.h> +#include <asm/facility.h> #include "sclp.h" @@ -87,14 +88,17 @@ out: int _sclp_get_core_info(struct sclp_core_info *info) { int rc; + int length = test_facility(140) ? EXT_SCCB_READ_CPU : PAGE_SIZE; struct read_cpu_info_sccb *sccb; if (!SCLP_HAS_CPU_INFO) return -EOPNOTSUPP; - sccb = (void *) get_zeroed_page(GFP_KERNEL | GFP_DMA); + + sccb = (void *)__get_free_pages(GFP_KERNEL | GFP_DMA | __GFP_ZERO, get_order(length)); if (!sccb) return -ENOMEM; - sccb->header.length = sizeof(*sccb); + sccb->header.length = length; + sccb->header.control_mask[2] = 0x80; rc = sclp_sync_request_timeout(SCLP_CMDW_READ_CPU_INFO, sccb, SCLP_QUEUE_INTERVAL); if (rc) @@ -107,7 +111,7 @@ int _sclp_get_core_info(struct sclp_core_info *info) } sclp_fill_core_info(info, sccb); out: - free_page((unsigned long) sccb); + free_pages((unsigned long) sccb, get_order(length)); return rc; } |