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* [LTP] Patch for disktest: Handle long filenames more reasonably
@ 2013-06-17 14:23 Christian Iversen
  2013-06-18 11:20 ` chrubis
  0 siblings, 1 reply; 2+ messages in thread
From: Christian Iversen @ 2013-06-17 14:23 UTC (permalink / raw)
  To: ltp-list

Hi all (please CC as I'm not on the list)

I've been using disktest, but I found a less than optimal piece of code 
regarding the device names.

I'd like to contribute the following patch:

--- main2.h     2013-06-17 16:21:26.585825912 +0200
+++ main.h      2013-06-17 16:10:08.725310241 +0200
@@ -54,7 +54,7 @@
  #define BLKGETSIZE _IO(0x12,96)                /* IOCTL for getting 
the device size */
  #define BLKSSZGET  _IO(0x12,104)       /* ALT IOCTL for getting the 
device size */

-#define DEV_NAME_LEN           80              /* max character for 
target name */
+#define DEV_NAME_LEN           256             /* max character for 
target name */
  #define MAX_ARG_LEN                    160             /* max length 
of command line arguments for startarg display */
  #define HOSTNAME_SIZE          16              /* number of hostname 
characters used in mark header */
  #define BLK_SIZE                       512             /* default size 
of an LBA in bytes */


(or perhaps simply use PATH_MAX)

80 characters is way too much for devices like /dev/sdc, but easily too 
little for 
"/dev/disk/by-path/ip-172.16.15.51:3260-iscsi-iqn.2013-01.com.synology:srvnas1.02-lun-0" 
(that's a real device name, btw)

I know, iSCSI names are really long, but disktest should be able to 
handle it more gracefully. I got a really odd error ("could not open 
device") because the last handful of characters has been cut out.

-- 
Med venlig hilsen
Christian Iversen

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2013-06-17 14:23 [LTP] Patch for disktest: Handle long filenames more reasonably Christian Iversen
2013-06-18 11:20 ` chrubis

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