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>

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 7465f22..2644afb 100644 (file)
--- 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);
        }