mm: move page-writeback sysctls to their own file

kernel/sysctl.c is a kitchen sink where everyone leaves their dirty
dishes, this makes it very difficult to maintain.

To help with this maintenance let's start by moving sysctls to places
where they actually belong.  The proc sysctl maintainers do not want to
know what sysctl knobs you wish to add for your own piece of code, we just
care about the core logic.

So move the page-writeback sysctls to its own file.

[[email protected]: coding-style cleanups]

[email protected]: fix CONFIG_SYSCTL=n warnings]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: zhanglianjie <[email protected]>
Cc: Kees Cook <[email protected]>
Cc: Iurii Zaikin <[email protected]>
Cc: Luis Chamberlain <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Luis Chamberlain <[email protected]>

0 files changed, 0 insertions, 0 deletions