If last va found in vmap_area_list does not have a vm pointer,
vmallocinfo.s_show() returns 0, and show_purge_info() is not called as
it should.
Link: https://lkml.kernel.org/r/20211001170815.73321-1-eric.dumazet@gmail.com
Fixes:
dd3b8353bae7 ("mm/vmalloc: do not keep unpurged areas in the busy tree")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Uladzislau Rezki (Sony) <urezki@gmail.com>
Cc: Pengfei Li <lpf.vector@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(void *)va->va_start, (void *)va->va_end,
va->va_end - va->va_start);
- return 0;
+ goto final;
}
v = va->vm;
/*
* As a final step, dump "unpurged" areas.
*/
+final:
if (list_is_last(&va->list, &vmap_area_list))
show_purge_info(m);