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author | Uma Krishnan <ukrishn@linux.vnet.ibm.com> | 2016-03-04 21:55:18 (GMT) |
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committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-03-09 02:17:33 (GMT) |
commit | 5d1952acd0d56f6b6835aa45bea763ee97b9e66f (patch) | |
tree | f37166e34c555d2c106efd20de6bcd369f0049e5 /drivers/scsi/cxlflash/main.c | |
parent | 8a96b52af58721caf4f7496d0737e8ec6b63c86e (diff) | |
download | linux-5d1952acd0d56f6b6835aa45bea763ee97b9e66f.tar.xz |
cxlflash: Reorder user context initialization
In order to support cxlflash in the PowerVM environment, underlying
hypervisor APIs have imposed a kernel API ordering change.
For the superpipe access to LUN, user applications need a context.
The cxlflash module creates this context by making a sequence of
cxl calls. In the current code, a context is initialized via
cxl_dev_context_init() followed by cxl_process_element(), a function
that obtains the process element id. Finally, cxl_start_work()
is called to attach the process element.
In the PowerVM environment, a process element id cannot be obtained
from the hypervisor until the process element is attached. The
cxlflash module is unable to create contexts without a valid
process element id.
To fix this problem, cxl_start_work() is called before obtaining
the process element id.
Signed-off-by: Uma Krishnan <ukrishn@linux.vnet.ibm.com>
Acked-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/cxlflash/main.c')
0 files changed, 0 insertions, 0 deletions