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| author | Sebastian Ott <sebott@linux.vnet.ibm.com> | 2013-02-28 12:07:48 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-03-07 09:52:23 +0100 |
| commit | 4fa3c019640ef776e393345ed35d9ec5c51aa3c1 (patch) | |
| tree | 496a04beb012b9111f3735dbf3cf14a5861b71bd /arch/s390 | |
| parent | 93481c90200c50c7874b6a773acc87095ee3907d (diff) | |
| download | lwn-4fa3c019640ef776e393345ed35d9ec5c51aa3c1.tar.gz lwn-4fa3c019640ef776e393345ed35d9ec5c51aa3c1.zip | |
s390/scm_blk: suspend writes
Stop writing to scm after certain error conditions such as a concurrent
firmware upgrade. Resume to normal state once scm_blk_set_available is
called (due to an scm availability notification).
Reviewed-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/eadm.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/include/asm/eadm.h b/arch/s390/include/asm/eadm.h index a4a1ea49003e..78141be88b3d 100644 --- a/arch/s390/include/asm/eadm.h +++ b/arch/s390/include/asm/eadm.h @@ -34,6 +34,8 @@ struct arsb { u32 reserved[4]; } __packed; +#define EQC_WR_PROHIBIT 22 + struct msb { u8 fmt:4; u8 oc:4; |