From: Alexander Gordeev <agordeev@xxxxxxxxxxxxx> Subject: docs/vm: fix 'mm_count' vs 'mm_users' counter confusion In the context of the anonymous address space lifespan description the 'mm_users' reference counter is confused with 'mm_count'. I.e a "zombie" mm gets released when "mm_count" becomes zero, not "mm_users". Link: https://lkml.kernel.org/r/1597040695-32633-1-git-send-email-agordeev@xxxxxxxxxxxxx Signed-off-by: Alexander Gordeev <agordeev@xxxxxxxxxxxxx> Cc: Jonathan Corbet <corbet@xxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- Documentation/vm/active_mm.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/Documentation/vm/active_mm.rst~docs-vm-fix-mm_count-vs-mm_users-counter-confusion +++ a/Documentation/vm/active_mm.rst @@ -64,7 +64,7 @@ Active MM actually get cases where you have a address space that is _only_ used by lazy users. That is often a short-lived state, because once that thread gets scheduled away in favour of a real thread, the "zombie" mm gets - released because "mm_users" becomes zero. + released because "mm_count" becomes zero. Also, a new rule is that _nobody_ ever has "init_mm" as a real MM any more. "init_mm" should be considered just a "lazy context when no other _
