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| author |   Eric Dumazet <edumazet@google.com> | 2021-11-05 13:39:28 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2021-11-06 13:30:37 -0700 |
| commit | 7cc7913e8e61ac436497d01a64963770d1600f5d (patch) | |
| tree | 5eee9a1b67fde18ea2ff3a26b94041d4a8c67bb8 /mm/vmalloc.c | |
| parent | mm/vmalloc: make show_numa_info() aware of hugepage mappings (diff) | |
| download | linux-dev-7cc7913e8e61ac436497d01a64963770d1600f5d.tar.xz linux-dev-7cc7913e8e61ac436497d01a64963770d1600f5d.zip | |
mm/vmalloc: make sure to dump unpurged areas in /proc/vmallocinfo
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>
Diffstat (limited to 'mm/vmalloc.c')
| -rw-r--r-- | mm/vmalloc.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 6c1b97fd9b3d..0a740fb055ec 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -3913,7 +3913,7 @@ static int s_show(struct seq_file *m, void *p) (void *)va->va_start, (void *)va->va_end, va->va_end - va->va_start); - return 0; + goto final; } v = va->vm; @@ -3954,6 +3954,7 @@ static int s_show(struct seq_file *m, void *p) /* * As a final step, dump "unpurged" areas. */ +final: if (list_is_last(&va->list, &vmap_area_list)) show_purge_info(m); |