Christian Brauner (Amutable) b092062cb6 exec: introduce struct task_exec_state ...

Introduce struct task_exec_state, a per-task RCU-protected structure
that holds the dumpable mode and the user namespace and stays attached
to the task for its full lifetime.

task_exec_state_rcu() is the canonical reader: asserts RCU or
task_lock is held, WARNs on a NULL state, returns the
rcu_dereference()'d pointer.

Reviewed-by: Jann Horn <jannh@google.com>
Link: https://patch.msgid.link/20260520-work-task_exec_state-v3-2-69f895bc1385@kernel.org
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>

2026-05-26 11:02:01 +02:00

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