diff options
| author | Benjamin Block <bblock@linux.ibm.com> | 2019-10-25 18:12:50 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-10-29 03:16:15 +0100 |
| commit | 8a72db70b5ca3c3feb3ca25519e8a9516cc60cfe (patch) | |
| tree | ff96c0068ace879f957671e8c0a680ea67822cb2 /drivers/s390/scsi/zfcp_sysfs.c | |
| parent | scsi: zfcp: introduce sysfs interface to read the local B2B-Credit (diff) | |
| download | linux-8a72db70b5ca3c3feb3ca25519e8a9516cc60cfe.tar.xz linux-8a72db70b5ca3c3feb3ca25519e8a9516cc60cfe.zip | |
scsi: zfcp: implicitly refresh config-data diagnostics when reading sysfs
Adds implicit updates of cached diagnostics via Exchange Config Data when
reading sysfs attributes interfacing them. Right now this only affects the
new B2B-Credit diagnostic attribute.
This uses the same mechanism previously also used for cached diagnostics
of Exchange Port Data.
Link: https://lore.kernel.org/r/60a94f55f2630b74b468fed5f39880208abb2679.1572018132.git.bblock@linux.ibm.com
Reviewed-by: Steffen Maier <maier@linux.ibm.com>
Signed-off-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/s390/scsi/zfcp_sysfs.c')
| -rw-r--r-- | drivers/s390/scsi/zfcp_sysfs.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/s390/scsi/zfcp_sysfs.c b/drivers/s390/scsi/zfcp_sysfs.c index 376d76b9f337..ae8e9137f448 100644 --- a/drivers/s390/scsi/zfcp_sysfs.c +++ b/drivers/s390/scsi/zfcp_sysfs.c @@ -687,6 +687,11 @@ static ssize_t zfcp_sysfs_adapter_diag_b2b_credit_show( diag_hdr = &adapter->diagnostics->config_data.header; + rc = zfcp_diag_update_buffer_limited( + adapter, diag_hdr, zfcp_diag_update_config_data_buffer); + if (rc != 0) + goto out; + spin_lock_irqsave(&diag_hdr->access_lock, flags); /* nport_serv_param doesn't contain the ELS_Command code */ nsp = (struct fc_els_flogi *)((unsigned long) |