sysfs: deprecate sysfs_disk_to_sg

The cmd_filter patch merged for 2.6.27 broke retrieving the serial
number via an ioctl to /dev/sgN.  In debugging this I found that other
utilities like sdparm simply run the ioctl on /dev/sdX.  So just convert
to that for protection in numbers, but scream on the mailing list for
the inconvenience grr...

Signed-off-by: Dan Williams <dan.j.williams@intel.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/sysfs.c b/sysfs.c
index 8979ec4..0ea17eb 100644
--- a/sysfs.c
+++ b/sysfs.c
@@ -398,6 +398,7 @@ int sysfs_add_disk(struct mdinfo *sra, struct mdinfo *sd)
 	return rv;
 }
 
+#if 0
 int sysfs_disk_to_sg(int fd)
 {
 	/* from an open block device, try find and open its corresponding
@@ -461,6 +462,7 @@ int sysfs_disk_to_sg(int fd)
 
 	return -1;
 }
+#endif
 
 int sysfs_disk_to_scsi_id(int fd, __u32 *id)
 {