diff options
| author | Justin Tee <justin.tee@broadcom.com> | 2024-01-31 21:51:10 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2024-02-06 04:51:36 +0300 |
| commit | e39811bec6b17dd36794381d839abffab61abfcf (patch) | |
| tree | 56270c5ff84207f6104b59d295893c5478d37cf2 /drivers/scsi/lpfc/lpfc_nportdisc.c | |
| parent | a645b8c1f5bcfc5d6ce8cb8eb2015bcbc4b37909 (diff) | |
| download | linux-e39811bec6b17dd36794381d839abffab61abfcf.tar.xz | |
scsi: lpfc: Change lpfc_vport load_flag member into a bitmask
In attempt to reduce the amount of unnecessary shost_lock acquisitions in
the lpfc driver, change load_flag into an unsigned long bitmask and use
clear_bit/test_bit bitwise atomic APIs instead of reliance on shost_lock
for synchronization.
Also, correct the test for FC_UNLOADING in lpfc_ct_handle_mibreq, which
incorrectly tests vport->fc_flag rather than vport->load_flag.
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20240131185112.149731-16-justintee8345@gmail.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_nportdisc.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_nportdisc.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c index ab9b3585492c..24f171045abe 100644 --- a/drivers/scsi/lpfc/lpfc_nportdisc.c +++ b/drivers/scsi/lpfc/lpfc_nportdisc.c @@ -859,8 +859,8 @@ lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, * If we are here first then vport_delete is going to wait * for discovery to complete. */ - if (!(vport->load_flag & FC_UNLOADING) && - active_vlink_present) { + if (!test_bit(FC_UNLOADING, &vport->load_flag) && + active_vlink_present) { /* * If there are other active VLinks present, * re-instantiate the Vlink using FDISC. @@ -1145,9 +1145,8 @@ lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, phba = vport->phba; /* Release the RPI if reglogin completing */ - if (!(phba->pport->load_flag & FC_UNLOADING) && - (evt == NLP_EVT_CMPL_REG_LOGIN) && - (!pmb->u.mb.mbxStatus)) { + if (!test_bit(FC_UNLOADING, &phba->pport->load_flag) && + evt == NLP_EVT_CMPL_REG_LOGIN && !pmb->u.mb.mbxStatus) { rpi = pmb->u.mb.un.varWords[0]; lpfc_release_rpi(phba, vport, ndlp, rpi); } @@ -1571,8 +1570,8 @@ lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, phba = vport->phba; /* Release the RPI */ - if (!(phba->pport->load_flag & FC_UNLOADING) && - !mb->mbxStatus) { + if (!test_bit(FC_UNLOADING, &phba->pport->load_flag) && + !mb->mbxStatus) { rpi = pmb->u.mb.un.varWords[0]; lpfc_release_rpi(phba, vport, ndlp, rpi); } |