Wind River Support Network

Description

In the Linux kernel, the following vulnerability has been resolved:  gfs2: add some missing log locking  Function gfs2_logd() calls the log flushing functions gfs2_ail1_start(), gfs2_ail1_wait(), and gfs2_ail1_empty() without holding sdp->sd_log_flush_lock, but these functions require exclusion against concurrent transactions.  To fix that, add a non-locking __gfs2_log_flush() function.  Then, in gfs2_logd(), take sdp->sd_log_flush_lock before calling the above mentioned log flushing functions and __gfs2_log_flush().