tree c8046aac7007ecb657f56fae897df195c2d2761b
parent a1aeb65a4c80d8e97eca8bcde02a5aeae11f6201
author Zheng Liu <wenqing.lz@taobao.com> 1384297710 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1384312151 +0900

mm: improve the description for dirty_background_ratio/dirty_ratio sysctl

Now dirty_background_ratio/dirty_ratio contains a percentage of total
avaiable memory, which contains free pages and reclaimable pages.  The
number of these pages is not equal to the number of total system memory.
But they are described as a percentage of total system memory in
Documentation/sysctl/vm.txt.  So we need to fix them to avoid
misunderstanding.

Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Cc: Rob Landley <rob@landley.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>