• Borislav Petkov's avatar
    ratelimit: extend to print suppressed messages on release · 6b1d174b
    Borislav Petkov authored
    Extend the ratelimiting facility to print the amount of suppressed lines
    when it is being released.
    This use case is aimed at short-termed, burst-like users for which we
    want to output the suppressed lines stats only once, after it has been
    disposed of.  For an example, see /dev/kmsg usage in a follow-on patch.
    Also, change the printk() line we issue on release to not use
    "callbacks" as it is misleading: we're not suppressing callbacks but
    printk() calls.
    This has been separated from a previous patch by Linus.
    Link: http://lkml.kernel.org/r/20160716061745.15795-2-bp@alien8.deSigned-off-by: default avatarBorislav Petkov <bp@suse.de>
    Cc: Dave Young <dyoung@redhat.com>
    Cc: Franck Bui <fbui@suse.com>
    Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Cc: Ingo Molnar <mingo@kernel.org>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Steven Rostedt <rostedt@goodmis.org>
    Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
ratelimit.c 1.58 KB