Messages in this thread Patch in this message | | | Date | Sun, 25 Jun 2006 15:10:42 +0800 | From | Fengguang Wu <> | Subject | [PATCH 6/7] iosched: run elv_kick_page() on sync read |
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Call elv_kick_page() to notify the elevator of a pending read.
Requests of priority IOPRIO_CLASS_IDLE are ignored.
Signed-off-by: Wu Fengguang <wfg@mail.ustc.edu.cn> ---
--- linux-2.6.17-rc5-mm3.orig/block/ll_rw_blk.c +++ linux-2.6.17-rc5-mm3/block/ll_rw_blk.c @@ -1619,6 +1619,9 @@ static void blk_backing_dev_unplug(struc { request_queue_t *q = bdi->unplug_io_data; + if (IOPRIO_PRIO_CLASS(current->ioprio) != IOPRIO_CLASS_IDLE) + elv_kick_page(q, page); + /* * devices don't necessarily have an ->unplug_fn defined */ --- linux-2.6.17-rc5-mm3.orig/fs/buffer.c +++ linux-2.6.17-rc5-mm3/fs/buffer.c @@ -63,8 +63,9 @@ static int sync_buffer(void *word) smp_mb(); bd = bh->b_bdev; - if (bd) - blk_run_address_space(bd->bd_inode->i_mapping); + if (bd && bd->bd_inode && bd->bd_inode->i_mapping) + blk_run_backing_dev(bd->bd_inode->i_mapping->backing_dev_info, + bh->b_page); io_schedule(); return 0; } -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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