tree d302a8fb0e69169ef9e0749918ab6f0fd26ac2a9
parent c12176d3368b9b36ae484d323d41e94be26f9b65
author David Rientjes <rientjes@google.com> 1446778232 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1446780888 -0800

mm, oom: add comment for why oom_adj exists

/proc/pid/oom_adj exists solely to avoid breaking existing userspace
binaries that write to the tunable.

Add a comment in the only possible location within the kernel tree to
describe the situation and motivation for keeping it around.

Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>