From: raz ben yehuda <raziebe@gmail.com>
To: Neil Brown <neilb@suse.de>, linux raid <linux-raid@vger.kernel.org>
Cc: ofer <ofer@bitband.com>, yaron <yaronp@bitband.com>
Subject: Subject: [PATCH 007/009]: raid10: chunk size check in run
Date: Tue, 19 May 2009 19:10:20 +0300 [thread overview]
Message-ID: <1242749420.3293.89.camel@raz> (raw)
have raid10 check chunk size in run method instead of in md
raid10.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
Signed-off-by: raziebe@gmail.com
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 2405add..52ad64e 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -2055,7 +2055,15 @@ static int run(mddev_t *mddev)
"at least PAGE_SIZE(%ld).\n", PAGE_SIZE);
return -EINVAL;
}
-
+ /*
+ * chunk-size has to be a power of 2
+ */
+ if ((1 << ffz(~mddev->chunk_size)) != mddev->chunk_size) {
+ printk(KERN_ERR "%s chunk_size of %d not valid\n",
+ mdname(mddev),
+ mddev->chunk_size);
+ return -EINVAL;
+ }
nc = mddev->layout & 255;
fc = (mddev->layout >> 8) & 255;
fo = mddev->layout & (1<<16);
next reply other threads:[~2009-05-19 16:10 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-19 16:10 raz ben yehuda [this message]
-- strict thread matches above, loose matches on Subject: below --
2009-05-19 16:10 Subject: [PATCH 007/009]: raid10: chunk size check in run raz ben yehuda
2009-05-19 16:10 raz ben yehuda
2009-05-19 16:09 raz ben yehuda
2009-05-19 16:08 raz ben yehuda
2009-05-20 1:41 ` Neil Brown
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