xfs: simplify log shutdown checking in xfs_log_release_iclog

There is no need to check for the ioerror state before the lock, as
the shutdown case is not a fast path.  Also remove the call to force
shutdown the file system, as it must have been shut down already
for an iclog to be in the ioerror state.  Also clean up the flow of
the function a bit.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>

diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 17ba92b..7af9c29 100644 (file)
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -602,24 +602,16 @@ xfs_log_release_iclog(
        struct xlog_in_core     *iclog)
 {
        struct xlog             *log = iclog->ic_log;
-       bool                    sync;
-
-       if (iclog->ic_state == XLOG_STATE_IOERROR)
-               goto error;
+       bool                    sync = false;
 
        if (atomic_dec_and_lock(&iclog->ic_refcnt, &log->l_icloglock)) {
-               if (iclog->ic_state == XLOG_STATE_IOERROR) {
-                       spin_unlock(&log->l_icloglock);
-                       goto error;
-               }
-               sync = __xlog_state_release_iclog(log, iclog);
+               if (iclog->ic_state != XLOG_STATE_IOERROR)
+                       sync = __xlog_state_release_iclog(log, iclog);
                spin_unlock(&log->l_icloglock);
-               if (sync)
-                       xlog_sync(log, iclog);
        }
-       return;
-error:
-       xfs_force_shutdown(log->l_mp, SHUTDOWN_LOG_IO_ERROR);
+
+       if (sync)
+               xlog_sync(log, iclog);
 }
 
 /*