Subject: [PATCH 005/009]: raid0: chunk size check in raid0_run
From: raz ben yehuda <hidden>
Date: 2009-05-19 16:07:34
Subsystem:
software raid (multiple disks) support, the rest · Maintainers:
Song Liu, Yu Kuai, Linus Torvalds
have raid0 check chunk size in run method instead of in md hardsect is short and chunksize am int, so i can use %. raid0.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) Signed-off-by: raziebe@gmail.com ---
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index a994169..b92b332 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c@@ -236,7 +236,17 @@ static int create_strip_zones(mddev_t *mddev) mddev->queue->unplug_fn = raid0_unplug; mddev->queue->backing_dev_info.congested_fn = raid0_congested; mddev->queue->backing_dev_info.congested_data = mddev; - + /* + * now since we have the hard sector sizes, we can make sure + * chunk size is a multiple of that sector size + * note! mdadm enforced 1K minimum for the chunk size. + */ + if (mddev->chunk_size % mddev->queue->hardsect_size) { + printk(KERN_ERR "%s chunk_size of %d not valid\n", + mdname(mddev), + mddev->chunk_size); + goto abort; + } printk(KERN_INFO "raid0: done.\n"); mddev->private = conf; return 0;