• Robert Peterson's avatar
    gfs2: allow journal replay to hold sd_log_flush_lock · c9ebc4b7
    Robert Peterson authored
    Before this patch, journal replays could stomp on log flushes
    and each other because both log flushes and journal replays used
    the same sd_log_bio. Function gfs2_log_flush prevents other log
    flushes from interfering by taking the sd_log_flush_lock rwsem
    during the flush. However, it does not protect against journal
    replays. This patch allows the journal replay to take the same
    sd_log_flush_lock rwsem so use of the sd_log_bio is not stomped.
    Signed-off-by: Robert Peterson's avatarBob Peterson <rpeterso@redhat.com>
recovery.c 11.4 KB