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authorEd Cashin <ecashin@coraid.com>2012-10-05 04:16:31 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-05 22:05:26 +0400
commit25f4d75ea45cdcc59158bfd1ae162a6ff2071124 (patch)
tree7a5d466802997735cfa531947b845f0ba36d61f0 /drivers/block/aoe
parentd54d35ac6605161a593e3f4411de338ef81b5263 (diff)
downloadlinux-25f4d75ea45cdcc59158bfd1ae162a6ff2071124.tar.xz
aoe: do revalidation steps in order
The discovery process begins with an optional AoE config query command and an AoE config query response. Normally when an aoe device is already open, the config query response does not trigger an ATA identify device command to be sent out, since the response contains storage capacity information that, if changed, could surprise the user of the device. The userland "aoe-revalidate" tool uses a character device to trigger an AoE config query for a particular AoE storage target and an ATA device identify command, even when the device is open. This change causes the config query to go out first, reflecting the normal discovery sequence. The responses could come back in any order, so this change is fairly cosmetic. Signed-off-by: Ed Cashin <ecashin@coraid.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/block/aoe')
-rw-r--r--drivers/block/aoe/aoechr.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/block/aoe/aoechr.c b/drivers/block/aoe/aoechr.c
index 3557f0d04b46..acdd0adaf5da 100644
--- a/drivers/block/aoe/aoechr.c
+++ b/drivers/block/aoe/aoechr.c
@@ -96,13 +96,14 @@ revalidate(const char __user *str, size_t size)
return -EINVAL;
spin_lock_irqsave(&d->lock, flags);
aoecmd_cleanslate(d);
+ aoecmd_cfg(major, minor);
loop:
skb = aoecmd_ata_id(d);
spin_unlock_irqrestore(&d->lock, flags);
/* try again if we are able to sleep a bit,
* otherwise give up this revalidation
*/
- if (!skb && !msleep_interruptible(200)) {
+ if (!skb && !msleep_interruptible(250)) {
spin_lock_irqsave(&d->lock, flags);
goto loop;
}
@@ -113,7 +114,6 @@ loop:
__skb_queue_tail(&queue, skb);
aoenet_xmit(&queue);
}
- aoecmd_cfg(major, minor);
return 0;
}