diff options
| author | James Morris <jmorris@namei.org> | 2011-11-16 12:39:48 +1100 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2011-11-16 12:39:48 +1100 |
| commit | 24942c8e5cc8696064ee207ff29d4cf21f70dafc (patch) | |
| tree | 08a8221eb72ec3da7746d7d76f6f5915ce77cde7 /drivers/infiniband/hw/qib/qib_ruc.c | |
| parent | e163bc8e4a0cd1cdffadb58253f7651201722d56 (diff) | |
| parent | ff0ff78068dd8a962358dbbdafa9d6f24540d3e5 (diff) | |
Merge branch 'master'; commit 'v3.2-rc2' into next
Diffstat (limited to 'drivers/infiniband/hw/qib/qib_ruc.c')
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_ruc.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/qib/qib_ruc.c b/drivers/infiniband/hw/qib/qib_ruc.c index eb78d9367f06..b4b37e47321a 100644 --- a/drivers/infiniband/hw/qib/qib_ruc.c +++ b/drivers/infiniband/hw/qib/qib_ruc.c @@ -260,12 +260,15 @@ static int gid_ok(union ib_gid *gid, __be64 gid_prefix, __be64 id) /* * - * This should be called with the QP s_lock held. + * This should be called with the QP r_lock held. + * + * The s_lock will be acquired around the qib_migrate_qp() call. */ int qib_ruc_check_hdr(struct qib_ibport *ibp, struct qib_ib_header *hdr, int has_grh, struct qib_qp *qp, u32 bth0) { __be64 guid; + unsigned long flags; if (qp->s_mig_state == IB_MIG_ARMED && (bth0 & IB_BTH_MIG_REQ)) { if (!has_grh) { @@ -295,7 +298,9 @@ int qib_ruc_check_hdr(struct qib_ibport *ibp, struct qib_ib_header *hdr, if (be16_to_cpu(hdr->lrh[3]) != qp->alt_ah_attr.dlid || ppd_from_ibp(ibp)->port != qp->alt_ah_attr.port_num) goto err; + spin_lock_irqsave(&qp->s_lock, flags); qib_migrate_qp(qp); + spin_unlock_irqrestore(&qp->s_lock, flags); } else { if (!has_grh) { if (qp->remote_ah_attr.ah_flags & IB_AH_GRH) |