mm: vmalloc tweak failure printk

If we can't service a vmalloc allocation, show size of the allocation that
actually failed.  Useful for debugging.

Signed-off-by: Glauber Costa <glommer@redhat.com>
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 7465f22fec0c..2644afb9d6ab 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -381,8 +381,9 @@ found:
                         goto retry;
                 }
                 if (printk_ratelimit())
-                        printk(KERN_WARNING "vmap allocation failed: "
-                                 "use vmalloc=<size> to increase size.\n");
+                        printk(KERN_WARNING
+                                "vmap allocation for size %lu failed: "
+                                "use vmalloc=<size> to increase size.\n", size);
                 return ERR_PTR(-EBUSY);
         }