diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/megaraid.c | 32 | ||||
| -rw-r--r-- | drivers/scsi/megaraid.h | 10 |
2 files changed, 14 insertions, 28 deletions
diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c index 61a6fd810bb4..93c95bc82c1f 100644 --- a/drivers/scsi/megaraid.c +++ b/drivers/scsi/megaraid.c @@ -362,6 +362,7 @@ megaraid_queue(Scsi_Cmnd *scmd, void (*done)(Scsi_Cmnd *)) adapter_t *adapter; scb_t *scb; int busy=0; + unsigned long flags; adapter = (adapter_t *)scmd->device->host->hostdata; @@ -377,6 +378,7 @@ megaraid_queue(Scsi_Cmnd *scmd, void (*done)(Scsi_Cmnd *)) * return 0 in that case. */ + spin_lock_irqsave(&adapter->lock, flags); scb = mega_build_cmd(adapter, scmd, &busy); if(scb) { @@ -393,6 +395,7 @@ megaraid_queue(Scsi_Cmnd *scmd, void (*done)(Scsi_Cmnd *)) } return 0; } + spin_unlock_irqrestore(&adapter->lock, flags); return busy; } @@ -1981,7 +1984,7 @@ megaraid_reset(struct scsi_cmnd *cmd) mc.cmd = MEGA_CLUSTER_CMD; mc.opcode = MEGA_RESET_RESERVATIONS; - if( mega_internal_command(adapter, LOCK_INT, &mc, NULL) != 0 ) { + if( mega_internal_command(adapter, &mc, NULL) != 0 ) { printk(KERN_WARNING "megaraid: reservation reset failed.\n"); } @@ -3011,7 +3014,7 @@ proc_rdrv(adapter_t *adapter, char *page, int start, int end ) mc.cmd = FC_NEW_CONFIG; mc.opcode = OP_DCMD_READ_CONFIG; - if( mega_internal_command(adapter, LOCK_INT, &mc, NULL) ) { + if( mega_internal_command(adapter, &mc, NULL) ) { len = sprintf(page, "40LD read config failed.\n"); @@ -3029,11 +3032,11 @@ proc_rdrv(adapter_t *adapter, char *page, int start, int end ) else { mc.cmd = NEW_READ_CONFIG_8LD; - if( mega_internal_command(adapter, LOCK_INT, &mc, NULL) ) { + if( mega_internal_command(adapter, &mc, NULL) ) { mc.cmd = READ_CONFIG_8LD; - if( mega_internal_command(adapter, LOCK_INT, &mc, + if( mega_internal_command(adapter, &mc, NULL) ){ len = sprintf(page, @@ -3632,7 +3635,7 @@ megadev_ioctl(struct inode *inode, struct file *filep, unsigned int cmd, /* * Issue the command */ - mega_internal_command(adapter, LOCK_INT, &mc, pthru); + mega_internal_command(adapter, &mc, pthru); rval = mega_n_to_m((void __user *)arg, &mc); @@ -3715,7 +3718,7 @@ freemem_and_return: /* * Issue the command */ - mega_internal_command(adapter, LOCK_INT, &mc, NULL); + mega_internal_command(adapter, &mc, NULL); rval = mega_n_to_m((void __user *)arg, &mc); @@ -4234,7 +4237,7 @@ mega_do_del_logdrv(adapter_t *adapter, int logdrv) mc.opcode = OP_DEL_LOGDRV; mc.subopcode = logdrv; - rval = mega_internal_command(adapter, LOCK_INT, &mc, NULL); + rval = mega_internal_command(adapter, &mc, NULL); /* log this event */ if(rval) { @@ -4367,7 +4370,7 @@ mega_adapinq(adapter_t *adapter, dma_addr_t dma_handle) mc.xferaddr = (u32)dma_handle; - if ( mega_internal_command(adapter, LOCK_INT, &mc, NULL) != 0 ) { + if ( mega_internal_command(adapter, &mc, NULL) != 0 ) { return -1; } @@ -4435,7 +4438,7 @@ mega_internal_dev_inquiry(adapter_t *adapter, u8 ch, u8 tgt, mc.cmd = MEGA_MBOXCMD_PASSTHRU; mc.xferaddr = (u32)pthru_dma_handle; - rval = mega_internal_command(adapter, LOCK_INT, &mc, pthru); + rval = mega_internal_command(adapter, &mc, pthru); pci_free_consistent(pdev, sizeof(mega_passthru), pthru, pthru_dma_handle); @@ -4449,7 +4452,6 @@ mega_internal_dev_inquiry(adapter_t *adapter, u8 ch, u8 tgt, /** * mega_internal_command() * @adapter - pointer to our soft state - * @ls - the scope of the exclusion lock. * @mc - the mailbox command * @pthru - Passthru structure for DCDB commands * @@ -4463,8 +4465,7 @@ mega_internal_dev_inquiry(adapter_t *adapter, u8 ch, u8 tgt, * Note: parameter 'pthru' is null for non-passthru commands. */ static int -mega_internal_command(adapter_t *adapter, lockscope_t ls, megacmd_t *mc, - mega_passthru *pthru ) +mega_internal_command(adapter_t *adapter, megacmd_t *mc, mega_passthru *pthru) { Scsi_Cmnd *scmd; struct scsi_device *sdev; @@ -4508,15 +4509,8 @@ mega_internal_command(adapter_t *adapter, lockscope_t ls, megacmd_t *mc, scb->idx = CMDID_INT_CMDS; - /* - * Get the lock only if the caller has not acquired it already - */ - if( ls == LOCK_INT ) spin_lock_irqsave(&adapter->lock, flags); - megaraid_queue(scmd, mega_internal_done); - if( ls == LOCK_INT ) spin_unlock_irqrestore(&adapter->lock, flags); - wait_for_completion(&adapter->int_waitq); rval = scmd->result; diff --git a/drivers/scsi/megaraid.h b/drivers/scsi/megaraid.h index 4facf557cd19..6f9078025748 100644 --- a/drivers/scsi/megaraid.h +++ b/drivers/scsi/megaraid.h @@ -926,13 +926,6 @@ struct mega_hbas { #define MEGA_SGLIST 0x0002 /* - * lockscope definitions, callers can specify the lock scope with this data - * type. LOCK_INT would mean the caller has not acquired the lock before - * making the call and LOCK_EXT would mean otherwise. - */ -typedef enum { LOCK_INT, LOCK_EXT } lockscope_t; - -/* * Parameters for the io-mapped controllers */ @@ -1062,8 +1055,7 @@ static int mega_support_random_del(adapter_t *); static int mega_del_logdrv(adapter_t *, int); static int mega_do_del_logdrv(adapter_t *, int); static void mega_get_max_sgl(adapter_t *); -static int mega_internal_command(adapter_t *, lockscope_t, megacmd_t *, - mega_passthru *); +static int mega_internal_command(adapter_t *, megacmd_t *, mega_passthru *); static void mega_internal_done(Scsi_Cmnd *); static int mega_support_cluster(adapter_t *); #endif |