diff options
Diffstat (limited to 'drivers/block/aoe/aoechr.c')
| -rw-r--r-- | drivers/block/aoe/aoechr.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/block/aoe/aoechr.c b/drivers/block/aoe/aoechr.c index d5480e34cb2..03c7f4ab562 100644 --- a/drivers/block/aoe/aoechr.c +++ b/drivers/block/aoe/aoechr.c @@ -6,6 +6,7 @@ #include <linux/hdreg.h> #include <linux/blkdev.h> +#include <linux/delay.h> #include "aoe.h" enum { @@ -68,6 +69,7 @@ revalidate(const char __user *str, size_t size) int major, minor, n; ulong flags; struct aoedev *d; + struct sk_buff *skb; char buf[16]; if (size >= sizeof buf) @@ -85,13 +87,20 @@ revalidate(const char __user *str, size_t size) d = aoedev_by_aoeaddr(major, minor); if (!d) return -EINVAL; - spin_lock_irqsave(&d->lock, flags); - d->flags &= ~DEVFL_MAXBCNT; - d->flags |= DEVFL_PAUSE; + aoecmd_cleanslate(d); +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)) { + spin_lock_irqsave(&d->lock, flags); + goto loop; + } + aoenet_xmit(skb); aoecmd_cfg(major, minor); - return 0; } |