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-rw-r--r--man7/namespaces.72
1 files changed, 2 insertions, 0 deletions
diff --git a/man7/namespaces.7 b/man7/namespaces.7
index a49f617ff2..1e5c08484f 100644
--- a/man7/namespaces.7
+++ b/man7/namespaces.7
@@ -724,6 +724,8 @@ The data written to
consists of a single line that maps the writing process's file system user ID
(group ID) in the parent user namespace to a user ID (group ID)
in the user namespace.
+The usual case here is that this single line provides a mapping for user ID
+of the process that created the namespace.
.IP * 3
The process has the
.BR CAP_SETUID