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| author | Steffen Maier <maier@linux.ibm.com> | 2018-12-06 17:31:21 +0100 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-12-08 04:04:25 +0100 |
| commit | 7171455354eb2ed494ddb6fe50988e98bb5cfa96 (patch) | |
| tree | e9589f9e339abc580729a44ac92b2753c32498f1 /drivers/s390 | |
| parent | scsi: zfcp: fix posting too many status read buffers leading to adapter shutdown (diff) | |
| download | linux-7171455354eb2ed494ddb6fe50988e98bb5cfa96.tar.xz linux-7171455354eb2ed494ddb6fe50988e98bb5cfa96.zip | |
scsi: zfcp: improve kdoc for return of zfcp_status_read_refill()
Complements
v2.6.35 commit 64deb6efdc55 ("[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 8d88cf3f3b9a ("[SCSI] zfcp: Update status read mempool")
v3.10 commit 9edf7d75ee5f ("[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>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/scsi/zfcp_aux.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c index 882789fff574..9cf30d124b9e 100644 --- a/drivers/s390/scsi/zfcp_aux.c +++ b/drivers/s390/scsi/zfcp_aux.c @@ -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) { |