documentation: describe bootmem_debug kernel parameter

"bootmem_debug" is not mentioned in kernel-parameters.txt. Recently I
had to use that kernel option and I think it should be documented.

Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Johannes Weiner <hannes@saeurebad.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index e7bea3e85304..a8976467a983 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -365,6 +365,8 @@ and is between 256 and 4096 characters. It is defined in the file
                         no delay (0).
                         Format: integer
 
+        bootmem_debug   [KNL] Enable bootmem allocator debug messages.
+
         bttv.card=      [HW,V4L] bttv (bt848 + bt878 based grabber cards)
         bttv.radio=     Most important insmod options are available as
                         kernel args too.