s390/extmem: remove stale -ENOSPC comment and handling

segment_load() will no longer return -ENOSPC. If a segment overlaps with
storage, we now also return -EBUSY. Remove the stale comment from
__segment_load() and the stale handling from segment_warning().

Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Suggested-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20200630084240.8283-1-david@redhat.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>

diff --git a/arch/s390/mm/extmem.c b/arch/s390/mm/extmem.c
index 105c092..5060956 100644 (file)
--- a/arch/s390/mm/extmem.c
+++ b/arch/s390/mm/extmem.c
@@ -401,8 +401,7 @@ __segment_load (char *name, int do_nonshared, unsigned long *addr, unsigned long
  * -EIO     : could not perform query or load diagnose
  * -ENOENT  : no such segment
  * -EOPNOTSUPP: multi-part segment cannot be used with linux
- * -ENOSPC  : segment cannot be used (overlaps with storage)
- * -EBUSY   : segment can temporarily not be used (overlaps with dcss)
+ * -EBUSY   : segment cannot be used (overlaps with dcss or storage)
  * -ERANGE  : segment cannot be used (exceeds kernel mapping range)
  * -EPERM   : segment is currently loaded with incompatible permissions
  * -ENOMEM  : out of memory
@@ -627,10 +626,6 @@ void segment_warning(int rc, char *seg_name)
                pr_err("DCSS %s has multiple page ranges and cannot be "
                       "loaded or queried\n", seg_name);
                break;
-       case -ENOSPC:
-               pr_err("DCSS %s overlaps with used storage and cannot "
-                      "be loaded\n", seg_name);
-               break;
        case -EBUSY:
                pr_err("%s needs used memory resources and cannot be "
                       "loaded or queried\n", seg_name);