lkml.org 
[lkml]   [2002]   [Oct]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH] 2.5.43 cciss add GETLUNINFO ioctl
Adds CCISS_GETLUNINFO ioctl (used by online array config util for instance)
Applies to 2.5.43 after previous 8 cciss patches sent oct 16th 2002.
-- steve

diff -urN linux-2.5.43-h/drivers/block/cciss.c linux-2.5.43-i/drivers/block/cciss.c
--- linux-2.5.43-h/drivers/block/cciss.c Wed Oct 16 08:30:54 2002
+++ linux-2.5.43-i/drivers/block/cciss.c Thu Oct 17 13:20:30 2002
@@ -574,6 +574,24 @@
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 <MAX_PART; i++)
+ if (disk->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 -urN linux-2.5.43-h/include/linux/cciss_ioctl.h linux-2.5.43-i/include/linux/cciss_ioctl.h
--- linux-2.5.43-h/include/linux/cciss_ioctl.h Fri Sep 27 16:49:49 2002
+++ linux-2.5.43-i/include/linux/cciss_ioctl.h Thu Oct 17 13:21:16 2002
@@ -169,6 +169,11 @@
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 @@
#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
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
\
 
 \ /
  Last update: 2005-03-22 13:30    [W:0.027 / U:1.456 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site