From 9cb78c16f5dadefd8dc5ba0ae5a2f26cd59419b3 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Wed, 25 Jun 2014 15:27:36 +0200 Subject: scsi: use 64-bit LUNs The SCSI standard defines 64-bit values for LUNs, and large arrays employing large or hierarchical LUN numbers become more and more common. So update the linux SCSI stack to use 64-bit LUN numbers. Signed-off-by: Hannes Reinecke Reviewed-by: Christoph Hellwig Reviewed-by: Ewan Milne Signed-off-by: Christoph Hellwig --- drivers/scsi/arm/fas216.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'drivers/scsi/arm/fas216.c') diff --git a/drivers/scsi/arm/fas216.c b/drivers/scsi/arm/fas216.c index b46a6f6c0eb3..71cfb1e504c4 100644 --- a/drivers/scsi/arm/fas216.c +++ b/drivers/scsi/arm/fas216.c @@ -1821,7 +1821,8 @@ static void fas216_allocate_tag(FAS216_Info *info, struct scsi_cmnd *SCpnt) SCpnt->tag = SCpnt->device->current_tag; } else #endif - set_bit(SCpnt->device->id * 8 + SCpnt->device->lun, info->busyluns); + set_bit(SCpnt->device->id * 8 + + (u8)(SCpnt->device->lun & 0x7), info->busyluns); info->stats.removes += 1; switch (SCpnt->cmnd[0]) { @@ -2171,7 +2172,8 @@ static void fas216_done(FAS216_Info *info, unsigned int result) * status. */ info->device[SCpnt->device->id].parity_check = 0; - clear_bit(SCpnt->device->id * 8 + SCpnt->device->lun, info->busyluns); + clear_bit(SCpnt->device->id * 8 + + (u8)(SCpnt->device->lun & 0x7), info->busyluns); fn = (void (*)(FAS216_Info *, struct scsi_cmnd *, unsigned int))SCpnt->host_scribble; fn(info, SCpnt, result); @@ -2398,7 +2400,8 @@ static enum res_find fas216_find_command(FAS216_Info *info, * been set. */ info->origSCpnt = NULL; - clear_bit(SCpnt->device->id * 8 + SCpnt->device->lun, info->busyluns); + clear_bit(SCpnt->device->id * 8 + + (u8)(SCpnt->device->lun & 0x7), info->busyluns); printk("waiting for execution "); res = res_success; } else @@ -3000,7 +3003,7 @@ void fas216_print_devices(FAS216_Info *info, struct seq_file *m) shost_for_each_device(scd, info->host) { dev = &info->device[scd->id]; - seq_printf(m, " %d/%d ", scd->id, scd->lun); + seq_printf(m, " %d/%llu ", scd->id, scd->lun); if (scd->tagged_supported) seq_printf(m, "%3sabled(%3d) ", scd->simple_tags ? "en" : "dis", -- cgit