aboutsummaryrefslogtreecommitdiff
path: root/arch/s390/mm/extmem.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/s390/mm/extmem.c')
-rw-r--r--arch/s390/mm/extmem.c67
1 files changed, 52 insertions, 15 deletions
diff --git a/arch/s390/mm/extmem.c b/arch/s390/mm/extmem.c
index 880b0ebf894..ed2af0a3303 100644
--- a/arch/s390/mm/extmem.c
+++ b/arch/s390/mm/extmem.c
@@ -289,22 +289,8 @@ __segment_load (char *name, int do_nonshared, unsigned long *addr, unsigned long
rc = add_shared_memory(seg->start_addr, seg->end - seg->start_addr + 1);
- switch (rc) {
- case 0:
- break;
- case -ENOSPC:
- PRINT_WARN("segment_load: not loading segment %s - overlaps "
- "storage/segment\n", name);
- goto out_free;
- case -ERANGE:
- PRINT_WARN("segment_load: not loading segment %s - exceeds "
- "kernel mapping range\n", name);
- goto out_free;
- default:
- PRINT_WARN("segment_load: not loading segment %s (rc: %d)\n",
- name, rc);
+ if (rc)
goto out_free;
- }
seg->res = kzalloc(sizeof(struct resource), GFP_KERNEL);
if (seg->res == NULL) {
@@ -582,8 +568,59 @@ out:
mutex_unlock(&dcss_lock);
}
+/*
+ * print appropriate error message for segment_load()/segment_type()
+ * return code
+ */
+void segment_warning(int rc, char *seg_name)
+{
+ switch (rc) {
+ case -ENOENT:
+ PRINT_WARN("cannot load/query segment %s, "
+ "does not exist\n", seg_name);
+ break;
+ case -ENOSYS:
+ PRINT_WARN("cannot load/query segment %s, "
+ "not running on VM\n", seg_name);
+ break;
+ case -EIO:
+ PRINT_WARN("cannot load/query segment %s, "
+ "hardware error\n", seg_name);
+ break;
+ case -ENOTSUPP:
+ PRINT_WARN("cannot load/query segment %s, "
+ "is a multi-part segment\n", seg_name);
+ break;
+ case -ENOSPC:
+ PRINT_WARN("cannot load/query segment %s, "
+ "overlaps with storage\n", seg_name);
+ break;
+ case -EBUSY:
+ PRINT_WARN("cannot load/query segment %s, "
+ "overlaps with already loaded dcss\n", seg_name);
+ break;
+ case -EPERM:
+ PRINT_WARN("cannot load/query segment %s, "
+ "already loaded in incompatible mode\n", seg_name);
+ break;
+ case -ENOMEM:
+ PRINT_WARN("cannot load/query segment %s, "
+ "out of memory\n", seg_name);
+ break;
+ case -ERANGE:
+ PRINT_WARN("cannot load/query segment %s, "
+ "exceeds kernel mapping range\n", seg_name);
+ break;
+ default:
+ PRINT_WARN("cannot load/query segment %s, "
+ "return value %i\n", seg_name, rc);
+ break;
+ }
+}
+
EXPORT_SYMBOL(segment_load);
EXPORT_SYMBOL(segment_unload);
EXPORT_SYMBOL(segment_save);
EXPORT_SYMBOL(segment_type);
EXPORT_SYMBOL(segment_modify_shared);
+EXPORT_SYMBOL(segment_warning);