XFS: Return -ENOMEM on vmap failure in _pagebuf_lookup_pages

Date:  Fri Sep 13 07:05:57 PDT 2002
Workarea:  dhcp212.munich.sgi.com:/home/hch/repo/ptools/linux-2.5-xfs
Author:  hch
Merged by:  hch
Merged mods:  2.4.x-xfs:slinx:127349a

The following file(s) were checked into:
  bonnie.engr.sgi.com:/isms/slinx/2.5.x-xfs


Modid:  2.5.x-xfs:slinx:127349a
linux/fs/xfs/pagebuf/page_buf.c - 1.59
	- Merge of 2.4.x-xfs:slinx:127349a by hch.
	  Return -ENOMEM on vmap failure in _pagebuf_lookup_pages

fs/xfs/pagebuf/page_buf.c

@@ -586,8 +586,8 @@ _pagebuf_lookup_pages(
 			if (as_list_len > 64)
 				purge_addresses();
 			pb->pb_addr = vmap(pb->pb_pages, page_count);
-			if (!pb->pb_addr)
-				BUG();
+			if (pb->pb_addr == NULL)
+				return -ENOMEM;
 			pb->pb_addr += pb->pb_offset;
 			pb->pb_flags |= PBF_MAPPED | _PBF_ADDR_ALLOCATED;
 		}