From: John Ogness <[email protected]> commit 448d96889a696c50c88d91e7547ca76d611abea2 in linux-rt-devel.
Instead of using an emergency loglevel to determine if atomic messages should be printed, use oops_in_progress. This conforms to the decision that latency-causing atomic messages never be generated during normal operation. Signed-off-by: John Ogness <[email protected]> Signed-off-by: Sebastian Andrzej Siewior <[email protected]> Signed-off-by: Paul Gortmaker <[email protected]> diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c index 9d9523431178..2b4616fd4fd4 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -1767,15 +1767,8 @@ static void call_console_drivers(u64 seq, const char *ext_text, size_t ext_len, con->wrote_history = 1; con->printk_seq = seq - 1; } - if (con->write_atomic && level < emergency_console_loglevel && - facility == 0) { - /* skip emergency messages, already printed */ - if (con->printk_seq < seq) - con->printk_seq = seq; - continue; - } if (con->flags & CON_BOOT && facility == 0) { - /* skip emergency messages, already printed */ + /* skip boot messages, already printed */ if (con->printk_seq < seq) con->printk_seq = seq; continue; @@ -3161,7 +3154,7 @@ static bool console_can_emergency(int level) for_each_console(con) { if (!(con->flags & CON_ENABLED)) continue; - if (con->write_atomic && level < emergency_console_loglevel) + if (con->write_atomic && oops_in_progress) return true; if (con->write && (con->flags & CON_BOOT)) return true; @@ -3177,7 +3170,7 @@ static void call_emergency_console_drivers(int level, const char *text, for_each_console(con) { if (!(con->flags & CON_ENABLED)) continue; - if (con->write_atomic && level < emergency_console_loglevel) { + if (con->write_atomic && oops_in_progress) { con->write_atomic(con, text, text_len); continue; } -- 2.7.4
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