diff options
Diffstat (limited to 'btt/trace_requeue.c')
| -rw-r--r-- | btt/trace_requeue.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/btt/trace_requeue.c b/btt/trace_requeue.c new file mode 100644 index 0000000..f1324d9 --- /dev/null +++ b/btt/trace_requeue.c @@ -0,0 +1,35 @@ +/* + * blktrace output analysis: generate a timeline & gather statistics + * + * Copyright (C) 2006 Alan D. Brunelle <Alan.Brunelle@hp.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ +#include "globals.h" + +static void handle_requeue(struct io *r_iop) +{ + r_iop->dip->n_qs++; + r_iop->dip->t_act_q += r_iop->dip->n_act_q; + r_iop->dip->n_act_q++; +} + +void trace_requeue(struct io *r_iop) +{ + if (io_setup(r_iop, IOP_R)) + handle_requeue(r_iop); + io_release(r_iop); +} |