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authorJiri Kosina <jkosina@suse.cz>2010-12-22 18:57:02 +0100
committerJiri Kosina <jkosina@suse.cz>2010-12-22 18:57:02 +0100
commit4b7bd364700d9ac8372eff48832062b936d0793b (patch)
tree0dbf78c95456a0b02d07fcd473281f04a87e266d /drivers/scsi/libfc/fc_fcp.c
parentc0d8768af260e2cbb4bf659ae6094a262c86b085 (diff)
parent90a8a73c06cc32b609a880d48449d7083327e11a (diff)
Merge branch 'master' into for-next
Conflicts: MAINTAINERS arch/arm/mach-omap2/pm24xx.c drivers/scsi/bfa/bfa_fcpim.c Needed to update to apply fixes for which the old branch was too outdated.
Diffstat (limited to 'drivers/scsi/libfc/fc_fcp.c')
-rw-r--r--drivers/scsi/libfc/fc_fcp.c28
1 files changed, 11 insertions, 17 deletions
diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c
index 54a6ec8e131..071cf082d34 100644
--- a/drivers/scsi/libfc/fc_fcp.c
+++ b/drivers/scsi/libfc/fc_fcp.c
@@ -58,8 +58,7 @@ struct kmem_cache *scsi_pkt_cachep;
#define FC_SRB_WRITE (1 << 0)
/*
- * The SCp.ptr should be tested and set under the host lock. NULL indicates
- * that the command has been retruned to the scsi layer.
+ * The SCp.ptr should be tested and set under the scsi_pkt_queue lock
*/
#define CMD_SP(Cmnd) ((struct fc_fcp_pkt *)(Cmnd)->SCp.ptr)
#define CMD_ENTRY_STATUS(Cmnd) ((Cmnd)->SCp.have_data_in)
@@ -1754,7 +1753,7 @@ static inline int fc_fcp_lport_queue_ready(struct fc_lport *lport)
* This is the i/o strategy routine, called by the SCSI layer. This routine
* is called with the host_lock held.
*/
-int fc_queuecommand(struct scsi_cmnd *sc_cmd, void (*done)(struct scsi_cmnd *))
+static int fc_queuecommand_lck(struct scsi_cmnd *sc_cmd, void (*done)(struct scsi_cmnd *))
{
struct fc_lport *lport;
struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
@@ -1852,6 +1851,8 @@ out:
spin_lock_irq(lport->host->host_lock);
return rc;
}
+
+DEF_SCSI_QCMD(fc_queuecommand)
EXPORT_SYMBOL(fc_queuecommand);
/**
@@ -1880,8 +1881,6 @@ static void fc_io_compl(struct fc_fcp_pkt *fsp)
lport = fsp->lp;
si = fc_get_scsi_internal(lport);
- if (!fsp->cmd)
- return;
/*
* if can_queue ramp down is done then try can_queue ramp up
@@ -1891,11 +1890,6 @@ static void fc_io_compl(struct fc_fcp_pkt *fsp)
fc_fcp_can_queue_ramp_up(lport);
sc_cmd = fsp->cmd;
- fsp->cmd = NULL;
-
- if (!sc_cmd->SCp.ptr)
- return;
-
CMD_SCSI_STATUS(sc_cmd) = fsp->cdb_status;
switch (fsp->status_code) {
case FC_COMPLETE:
@@ -1971,15 +1965,13 @@ static void fc_io_compl(struct fc_fcp_pkt *fsp)
break;
}
- if (lport->state != LPORT_ST_READY && fsp->status_code != FC_COMPLETE) {
- sc_cmd->result = (DID_REQUEUE << 16);
- FC_FCP_DBG(fsp, "Returning DID_REQUEUE to scsi-ml\n");
- }
+ if (lport->state != LPORT_ST_READY && fsp->status_code != FC_COMPLETE)
+ sc_cmd->result = (DID_TRANSPORT_DISRUPTED << 16);
spin_lock_irqsave(&si->scsi_queue_lock, flags);
list_del(&fsp->list);
- spin_unlock_irqrestore(&si->scsi_queue_lock, flags);
sc_cmd->SCp.ptr = NULL;
+ spin_unlock_irqrestore(&si->scsi_queue_lock, flags);
sc_cmd->scsi_done(sc_cmd);
/* release ref from initial allocation in queue command */
@@ -1997,6 +1989,7 @@ int fc_eh_abort(struct scsi_cmnd *sc_cmd)
{
struct fc_fcp_pkt *fsp;
struct fc_lport *lport;
+ struct fc_fcp_internal *si;
int rc = FAILED;
unsigned long flags;
@@ -2006,7 +1999,8 @@ int fc_eh_abort(struct scsi_cmnd *sc_cmd)
else if (!lport->link_up)
return rc;
- spin_lock_irqsave(lport->host->host_lock, flags);
+ si = fc_get_scsi_internal(lport);
+ spin_lock_irqsave(&si->scsi_queue_lock, flags);
fsp = CMD_SP(sc_cmd);
if (!fsp) {
/* command completed while scsi eh was setting up */
@@ -2015,7 +2009,7 @@ int fc_eh_abort(struct scsi_cmnd *sc_cmd)
}
/* grab a ref so the fsp and sc_cmd cannot be relased from under us */
fc_fcp_pkt_hold(fsp);
- spin_unlock_irqrestore(lport->host->host_lock, flags);
+ spin_unlock_irqrestore(&si->scsi_queue_lock, flags);
if (fc_fcp_lock_pkt(fsp)) {
/* completed while we were waiting for timer to be deleted */