Re: [PATCH] mm/compaction: remove unused variable sysctl_compact_memory

[Chaitanya Kulkarni]

On 3/2/21 22:21, Pintu Kumar wrote:
> The sysctl_compact_memory is mostly unsed in mm/compaction.c
> It just acts as a place holder for sysctl.
>
> Thus we can remove it from here and move the declaration directly
> in kernel/sysctl.c itself.
> This will also eliminate the extern declaration from header file.
> No functionality is broken or changed this way.
>
> Signed-off-by: Pintu Kumar <pintu@xxxxxxxxxxxxxx>
> Signed-off-by: Pintu Agarwal <pintu.ping@xxxxxxxxx>

You need to specify the first commit which added sysctl_compact_memory
variable and if exists the last commit which removed the last access
of the same variable in the file mm/compaction.c in for completeness
of the commit log.