linux/drivers/infiniband, branch mybooklive

Fix failure exit in ipathfs

2010-02-09T12:50:48Z

commit 12e9a45609054fb83d4a8b716a5265cc1a393e10 upstream. deactivate_locked_super() will be done by caller of fill_super, doing it there as well is b0rken. Signed-off-by: Al Viro Signed-off-by: Greg Kroah-Hartman

IPoIB: Clear ipoib_neigh.dgid in ipoib_neigh_alloc()

2010-01-28T23:02:51Z

commit 0cd4d0fd9b0a4e10c091fc6316d1bf92885dcd9c upstream. IPoIB can miss a change in destination GID under some conditions. The problem is caused when ipoib_neigh->dgid contains a stale address. The fix is to set ipoib_neigh->dgid to zero in ipoib_neigh_alloc(). This can happen when a system using bonding on its IPoIB interfaces has switched its active interface from interface A to B and back to A. The system that fails over will not correctly processes the 2nd address change, as described below. When an address has changed neighbor->ha is updated with the new address. Each neighbor has an associated ipoib_neigh. ipoib_neigh->dgid also holds a copy of the remote node's hardware address. When an address changes neighbor->ha is updated by the network layer (arp code) with the new address. IPoIB detects this change in ipoib_start_xmit() by comparing neighbor->ha with ipoib_neigh->dgid. The bug is that ipoib_neigh->dgid may already contain the new address (A) thus the change from B to A is missed by ipoib. Here is the sequence of events: ipoib_neigh->dgid = A and neighbor->ha = A The address is switched to B (the first switch) neighbor->ha = B The change is seen in ipoib_start_xmit() -- neighbor->ha != ipoib_neigh->dgid so ipoib_neigh is released, and a new one is allocated. The allocator may return the same chunk of memory that was just released, therefore ipoib_neigh->dgid still contains A at this point. ipoib_neigh->dgid should be updated in neigh_add_path(), but if the following conditions are true dgid is not updated: 1) __path_find() returns a path 2) path->ah is NULL The remote system now switches from address B to A, neighbor->ha is updated to A. Now we have again : ipoib_neigh->dgid = A and neighbor->ha = A Since the addresses are the same ipoib won't process the change in address. Fix this by zeroing out the dgid field when allocating a new struct ipoib_neigh. Signed-off-by: David Wilder Signed-off-by: Roland Dreier Signed-off-by: Greg Kroah-Hartman

headers: remove sched.h from interrupt.h

2009-10-11T18:20:58Z

After m68k's task_thread_info() doesn't refer to current, it's possible to remove sched.h from interrupt.h and not break m68k! Many thanks to Heiko Carstens for allowing this. Signed-off-by: Alexey Dobriyan

Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6

2009-10-11T18:12:33Z

* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: (34 commits) [SCSI] qla2xxx: Fix NULL ptr deref bug in fail path during queue create [SCSI] st: fix possible memory use after free after MTSETBLK ioctl [SCSI] be2iscsi: Moving to pci_pools v3 [SCSI] libiscsi: iscsi_session_setup to allow for private space [SCSI] be2iscsi: add 10Gbps iSCSI - BladeEngine 2 driver [SCSI] zfcp: Fix hang when offlining device with offline chpid [SCSI] zfcp: Fix lockdep warning when offlining device with offline chpid [SCSI] zfcp: Fix oops during shutdown of offline device [SCSI] zfcp: Fix initial device and cfdc for delayed adapter allocation [SCSI] zfcp: correctly initialize unchained requests [SCSI] mpt2sas: Bump version 02.100.03.00 [SCSI] mpt2sas: Support dev remove when phy status is MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT [SCSI] mpt2sas: Timeout occurred within the HANDSHAKE logic while waiting on firmware to ACK. [SCSI] mpt2sas: Call init_completion on a per request basis. [SCSI] mpt2sas: Target Reset will be issued from Interrupt context. [SCSI] mpt2sas: Added SCSIIO, Internal and high priority memory pools to support multiple TM [SCSI] mpt2sas: Copyright change to 2009. [SCSI] mpt2sas: Added mpi2_history.txt for MPI2 headers. [SCSI] mpt2sas: Update driver to MPI2 REV K headers. [SCSI] bfa: Brocade BFA FC SCSI driver ...

Merge branches 'cxgb3', 'misc' and 'mlx4' into for-next

2009-10-07T23:03:32Z

RDMA/addr: Fix resolution of local IPv6 addresses

2009-10-07T23:03:18Z

This patch allows a local IPv6 address to be resolved by rdma_cm. To reproduce the problem: $ rping -s -v -a ::0 & $ rping -c -v -a rdma_resolve_addr error -1 Local IPv6 address was obtained with "ip addr show ib0" Addresses: https://bugs.openfabrics.org/show_bug.cgi?id=1759 Signed-off-by: David Wilder Acked-by: Sean Hefty Signed-off-by: Roland Dreier

RDMA/cxgb3: Handle NULL inetdev pointer in iwch_query_port()

2009-10-07T22:51:07Z

in_dev_get() can return NULL. If it does, iwch_query_port() will crash. Handle the NULL case by mapping it to port state INIT. Signed-off-by: Steve Wise Signed-off-by: Roland Dreier

RDMA/iwcm: Don't call provider reject func with irqs disabled

2009-10-07T22:38:12Z

In commit cb58160e ("RDMA/iwcm: Reject the connection when the cm_id is destroyed") a call to the provider's reject handler was added to destroy_cm_id() to fix a provider endpoint leak. This call needs to be done with interrupts enabled. So unlock and relock around this call. This is safe because: 1) the provider will do nothing with this endpoint until the iwcm either accepts or rejects. 2) the lock is only released after the iwcm state is changed, so an errant iwcm app that is destroying -and- rejecting the connection concurrently will get a failure on one of the calls. Signed-off-by: Steve Wise Signed-off-by: Roland Dreier

headers: remove sched.h from poll.h

2009-10-04T22:05:10Z

Signed-off-by: Alexey Dobriyan Signed-off-by: Linus Torvalds

[SCSI] libiscsi: iscsi_session_setup to allow for private space

2009-10-02T19:01:39Z

This patch contains changes that allow iscsi_session_setup to allocate private space for LLD's Signed-off-by: Jayamohan Kallickal Acked-by: Mike Christie Signed-off-by: James Bottomley