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scsi: zfcp: improve kdoc for return of zfcp_status_read_refill()

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Complements

v2.6.35 commit 64deb6efdc ("[SCSI] zfcp: Use status_read_buf_num
provided by FCP channel") which replaced the hardcoded 16 with a
variable value

Also complements already existing fixups for above commit

v2.6.35 commit 8d88cf3f3b ("[SCSI] zfcp: Update status read mempool")
v3.10   commit 9edf7d75ee ("[SCSI] zfcp: status read buffers on first adapter open with link down")

Signed-off-by: Steffen Maier <maier@linux.ibm.com>
Reviewed-by: Jens Remus <jremus@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Steffen Maier 2018-12-06 17:31:21 +01:00 committed by Martin K. Petersen
parent 60a161b7e5
commit 7171455354
1 changed files with 4 additions and 4 deletions
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8
drivers/s390/scsi/zfcp_aux.c
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@ -264,10 +264,10 @@ static void zfcp_free_low_mem_buffers(struct zfcp_adapter *adapter)
* zfcp_status_read_refill - refill the long running status_read_requests
* @adapter: ptr to struct zfcp_adapter for which the buffers should be refilled
*
* Returns: 0 on success, 1 otherwise
*
* if there are 16 or more status_read requests missing an adapter_reopen
* is triggered
* Return:
* * 0 on success meaning at least one status read is pending
* * 1 if posting failed and not a single status read buffer is pending,
* also triggers adapter reopen recovery
*/
int zfcp_status_read_refill(struct zfcp_adapter *adapter)
{