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Marcos Paulo de Souza
62627bf0ca
Function kdb_msg_write was calling con->write for any found console, but it won't work on NBCON consoles. In this case we should acquire the ownership of the console using NBCON_PRIO_EMERGENCY, since printing kdb messages should only be interrupted by a panic. At this point, the console is required to use the atomic callback. The console is skipped if the write_atomic callback is not set or if the context could not be acquired. The validation of NBCON is done by the console_is_usable helper. The context is released right after write_atomic finishes. The oops_in_progress handling is only needed in the legacy consoles, so it was moved around the con->write callback. Suggested-by: Petr Mladek <[email protected]> Reviewed-by: Petr Mladek <[email protected]> Reviewed-by: John Ogness <[email protected]> Signed-off-by: Marcos Paulo de Souza <[email protected]> Link: https://patch.msgid.link/[email protected] [[email protected]: Fixed compilation with !CONFIG_PRINTK.] Signed-off-by: Petr Mladek <[email protected]>