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-rw-r--r--sys/compat/linprocfs/linprocfs.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/compat/linprocfs/linprocfs.c b/sys/compat/linprocfs/linprocfs.c
index dd88146..c02a2e8 100644
--- a/sys/compat/linprocfs/linprocfs.c
+++ b/sys/compat/linprocfs/linprocfs.c
@@ -143,9 +143,11 @@ linprocfs_domeminfo(PFS_FILL_ARGS)
swapused = j * PAGE_SIZE;
swapfree = swaptotal - swapused;
memshared = 0;
+ mtx_lock(&vm_object_list_mtx);
TAILQ_FOREACH(object, &vm_object_list, object_list)
if (object->shadow_count > 1)
memshared += object->resident_page_count;
+ mtx_unlock(&vm_object_list_mtx);
memshared *= PAGE_SIZE;
/*
* We'd love to be able to write:
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