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| author | Anish Bhatt <anish@chelsio.com> | 2014-09-15 17:44:18 -0700 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2014-10-01 13:40:22 -0400 |
| commit | 078efae00ffc76381c3248006e9cf0988163488f (patch) | |
| tree | 59f80cbdbd8f9468c1594eef93f89f90926060b7 /drivers/scsi/cxgbi/cxgb4i/cxgb4i.c | |
| parent | 7d1311b93e58ed55f3a31cc8f94c4b8fe988a2b9 (diff) | |
| download | op-kernel-dev-078efae00ffc76381c3248006e9cf0988163488f.zip op-kernel-dev-078efae00ffc76381c3248006e9cf0988163488f.tar.gz | |
[SCSI] cxgb4i: avoid holding mutex in interrupt context
cxgbi_inet6addr_handler() can be called in interrupt context, so use rcu
protected list while finding netdev. This is observed as a scheduling in
atomic oops when running over ipv6.
Fixes: fc8d0590d914 ("libcxgbi: Add ipv6 api to driver")
Fixes: 759a0cc5a3e1 ("cxgb4i: Add ipv6 code to driver, call into libcxgbi ipv6 api")
Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: Karen Xie <kxie@chelsio.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/cxgbi/cxgb4i/cxgb4i.c')
| -rw-r--r-- | drivers/scsi/cxgbi/cxgb4i/cxgb4i.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c index 79788a1..02e69e7 100644 --- a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c +++ b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c @@ -1647,7 +1647,7 @@ static int cxgbi_inet6addr_handler(struct notifier_block *this, if (event_dev->priv_flags & IFF_802_1Q_VLAN) event_dev = vlan_dev_real_dev(event_dev); - cdev = cxgbi_device_find_by_netdev(event_dev, NULL); + cdev = cxgbi_device_find_by_netdev_rcu(event_dev, NULL); if (!cdev) return ret; |
