Patch from Stephen Cameron Add CCISS_GETLUNINFO ioctl. This ioctl returns the LUNID, number of partitions, and current number of opens on a logical volume. Used by the array config utility or any app that needs to send passthrough commands to a particular logical disk. drivers/block/cciss.c | 18 ++++++++++++++++++ include/linux/cciss_ioctl.h | 6 ++++++ 2 files changed, 24 insertions(+) diff -puN drivers/block/cciss.c~cciss-getluninfo-ioctl drivers/block/cciss.c --- 25/drivers/block/cciss.c~cciss-getluninfo-ioctl Thu Feb 27 14:38:26 2003 +++ 25-akpm/drivers/block/cciss.c Thu Feb 27 14:38:26 2003 @@ -577,6 +577,24 @@ static int cciss_ioctl(struct inode *ino case CCISS_REVALIDVOLS: return( revalidate_allvol(inode->i_rdev)); + case CCISS_GETLUNINFO: { + LogvolInfo_struct luninfo; + struct gendisk *disk = hba[ctlr]->gendisk[dsk]; + drive_info_struct *drv = &hba[ctlr]->drv[dsk]; + int i; + + luninfo.LunID = drv->LunID; + luninfo.num_opens = drv->usage_count; + luninfo.num_parts = 0; + /* count partitions 1 to 15 with sizes > 0 */ + for(i=1; i part[i].nr_sects != 0) + luninfo.num_parts++; + if (copy_to_user((void *) arg, &luninfo, + sizeof(LogvolInfo_struct))) + return -EFAULT; + return(0); + } case CCISS_DEREGDISK: return( deregister_disk(ctlr,dsk)); diff -puN include/linux/cciss_ioctl.h~cciss-getluninfo-ioctl include/linux/cciss_ioctl.h --- 25/include/linux/cciss_ioctl.h~cciss-getluninfo-ioctl Thu Feb 27 14:38:26 2003 +++ 25-akpm/include/linux/cciss_ioctl.h Thu Feb 27 14:38:26 2003 @@ -169,6 +169,11 @@ typedef struct _IOCTL_Command_struct { BYTE *buf; } IOCTL_Command_struct; +typedef struct _LogvolInfo_struct{ + __u32 LunID; + int num_opens; /* number of opens on the logical volume */ + int num_parts; /* number of partitions configured on logvol */ +} LogvolInfo_struct; #define CCISS_GETPCIINFO _IOR(CCISS_IOC_MAGIC, 1, cciss_pci_info_struct) @@ -190,5 +195,6 @@ typedef struct _IOCTL_Command_struct { #define CCISS_REGNEWDISK _IOW(CCISS_IOC_MAGIC, 13, int) #define CCISS_REGNEWD _IO(CCISS_IOC_MAGIC, 14) +#define CCISS_GETLUNINFO _IOR(CCISS_IOC_MAGIC, 17, LogvolInfo_struct) #endif _