Re: [PATCH 05/10] proc: use %u for pid printing and slightly less stack

On Fri, Dec 04, 2020 at 02:31:59AM +0800, Wen Yang wrote:

From: Alexey Dobriyan adobriyan@gmail.com

[ Upstream commit e3912ac37e07a13c70675cd75020694de4841c74 ]

PROC_NUMBUF is 13 which is enough for "negative int + \n + \0".

However PIDs and TGIDs are never negative and newline is not a concern, so use just 10 per integer.

Link: http://lkml.kernel.org/r/20171120203005.GA27743@avx2 Signed-off-by: Alexey Dobriyan adobriyan@gmail.com Cc: Alexander Viro viro@ftp.linux.org.uk Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Cc: stable@vger.kernel.org # 4.9.x

A what? How does this belong to stable?