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authorDave Kleikamp <dave.kleikamp@oracle.com>2011-10-19 20:49:04 +0400
committerJames Bottomley <JBottomley@Parallels.com>2011-10-30 12:58:11 +0400
commit21208ae5a21fd5f337e987cde11374eaf2fe70b4 (patch)
tree3d835887fb1ce75e7dbf8b99f6086477db437c0e /drivers/scsi
parent6e88020025ccb6a6a0a54098acf1e187d2c9368c (diff)
downloadlinux-21208ae5a21fd5f337e987cde11374eaf2fe70b4.tar.xz
[SCSI] sd: remove arbitrary SD_MAX_DISKS namespace limit
There is no reason to limit the SCSI disk namespace to sdXXX. Add new error messages to sd_probe() in the unlikely event that either ida_get_new() or sd_format_disk_name() fail. Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/sd.c12
-rw-r--r--drivers/scsi/sd.h6
2 files changed, 5 insertions, 13 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index a7942e5c8be8..fa3a5918009c 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -2590,18 +2590,16 @@ static int sd_probe(struct device *dev)
spin_unlock(&sd_index_lock);
} while (error == -EAGAIN);
- if (error)
+ if (error) {
+ sdev_printk(KERN_WARNING, sdp, "sd_probe: memory exhausted.\n");
goto out_put;
-
- if (index >= SD_MAX_DISKS) {
- error = -ENODEV;
- sdev_printk(KERN_WARNING, sdp, "SCSI disk (sd) name space exhausted.\n");
- goto out_free_index;
}
error = sd_format_disk_name("sd", index, gd->disk_name, DISK_NAME_LEN);
- if (error)
+ if (error) {
+ sdev_printk(KERN_WARNING, sdp, "SCSI disk (sd) name length exceeded.\n");
goto out_free_index;
+ }
sdkp->device = sdp;
sdkp->driver = &sd_template;
diff --git a/drivers/scsi/sd.h b/drivers/scsi/sd.h
index 6ad798bfd52a..4163f2910e3d 100644
--- a/drivers/scsi/sd.h
+++ b/drivers/scsi/sd.h
@@ -9,12 +9,6 @@
#define SD_MAJORS 16
/*
- * This is limited by the naming scheme enforced in sd_probe,
- * add another character to it if you really need more disks.
- */
-#define SD_MAX_DISKS (((26 * 26) + 26 + 1) * 26)
-
-/*
* Time out in seconds for disks and Magneto-opticals (which are slower).
*/
#define SD_TIMEOUT (30 * HZ)