linux/drivers/md, branch v3.4.1

md: using GFP_NOIO to allocate bio for flush request

2012-06-01T07:18:19Z

commit b5e1b8cee7ad58a15d2fa79bcd7946acb592602d upstream. A flush request is usually issued in transaction commit code path, so using GFP_KERNEL to allocate memory for flush request bio falls into the classic deadlock issue. This is suitable for any -stable kernel to which it applies as it avoids a possible deadlock. Signed-off-by: Shaohua Li Signed-off-by: NeilBrown Signed-off-by: Greg Kroah-Hartman

Merge tag 'dm-3.4-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm

2012-05-19T01:22:45Z

Pull a dm fix from Alasdair G Kergon: "A fix to the thin provisioning userspace interface." * tag 'dm-3.4-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm: dm thin: fix table output when pool target disables discard passdown internally

dm thin: fix table output when pool target disables discard passdown internally

2012-05-19T00:01:01Z

When the thin pool target clears the discard_passdown parameter internally, it incorrectly changes the table line reported to userspace. This breaks dumb string comparisons on these table lines in generic userspace device-mapper library code and leads to tables being reloaded repeatedly when nothing is actually meant to be changing. This patch corrects this by no longer changing the table line when discard passdown was disabled. We can still tell when discard passdown is overridden by looking for the message "Discard unsupported by data device (sdX): Disabling discard passdown." This automatic detection is also moved from the 'load' to the 'resume' so that it is re-evaluated should the properties of underlying devices change. Signed-off-by: Mike Snitzer Acked-by: Joe Thornber Signed-off-by: Alasdair G Kergon

Merge tag 'md-3.4-fixes' of git://neil.brown.name/md

2012-05-18T23:19:59Z

Pull one more md bugfix from NeilBrown: "Fix bug in recent fix to RAID10. Without this patch, recovery will crash" * tag 'md-3.4-fixes' of git://neil.brown.name/md: md/raid10: fix transcription error in calc_sectors conversion.

md/raid10: fix transcription error in calc_sectors conversion.

2012-05-18T23:01:13Z

The old code was sector_div(stride, fc); the new code was sector_dir(size, conf->near_copies); 'size' is right (the stride various wasn't really needed), but 'fc' means 'far_copies', and that is an important difference. Signed-off-by: NeilBrown

Merge tag 'md-3.4-fixes' of git://neil.brown.name/md

2012-05-17T16:44:35Z

Pull two md fixes from NeilBrown: "One fixes a bug in the new raid10 resize code so is relevant to 3.4 only. The other fixes a bug in the use of md by dm-raid, so is relevant to any kernel with dm-raid support" * tag 'md-3.4-fixes' of git://neil.brown.name/md: MD: Add del_timer_sync to mddev_suspend (fix nasty panic) md/raid10: set dev_sectors properly when resizing devices in array.

MD: Add del_timer_sync to mddev_suspend (fix nasty panic)

2012-05-17T00:38:24Z

Use del_timer_sync to remove timer before mddev_suspend finishes. We don't want a timer going off after an mddev_suspend is called. This is especially true with device-mapper, since it can call the destructor function immediately following a suspend. This results in the removal (kfree) of the structures upon which the timer depends - resulting in a very ugly panic. Therefore, we add a del_timer_sync to mddev_suspend to prevent this. Cc: stable@vger.kernel.org Signed-off-by: NeilBrown

md/raid10: set dev_sectors properly when resizing devices in array.

2012-05-17T00:08:45Z

raid10 stores dev_sectors in 'conf' separately from the one in 'mddev' because it can have a very significant effect on block addressing and so need to be updated carefully. However raid10_resize isn't updating it at all! To update it correctly, we need to make sure it is a proper multiple of the chunksize taking various details of the layout in to account. This calculation is currently done in setup_conf. So split it out from there and call it from raid10_resize as well. Then set conf->dev_sectors properly. Signed-off-by: NeilBrown

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2012-05-12T19:57:01Z

Pull networking fixes from David S. Miller: 1) Since we do RCU lookups on ipv4 FIB entries, we have to test if the entry is dead before returning it to our caller. 2) openvswitch locking and packet validation fixes from Ansis Atteka, Jesse Gross, and Pravin B Shelar. 3) Fix PM resume locking in IGB driver, from Benjamin Poirier. 4) Fix VLAN header handling in vhost-net and macvtap, from Basil Gor. 5) Revert a bogus network namespace isolation change that was causing regressions on S390 networking devices. 6) If bonding decides to process and handle a LACPDU frame, we shouldn't bump the rx_dropped counter. From Jiri Bohac. 7) Fix mis-calculation of available TX space in r8169 driver when doing TSO, which can lead to crashes and/or hung device. From Julien Ducourthial. 8) SCTP does not validate cached routes properly in all cases, from Nicolas Dichtel. 9) Link status interrupt needs to be handled in ks8851 driver, from Stephen Boyd. 10) Use capable(), not cap_raised(), in connector/userns netlink code. From Eric W. Biederman via Andrew Morton. 11) Fix pktgen OOPS on module unload, from Eric Dumazet. 12) iwlwifi under-estimates SKB truesizes, also from Eric Dumazet. 13) Cure division by zero in SFC driver, from Ben Hutchings. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (26 commits) ks8851: Update link status during link change interrupt macvtap: restore vlan header on user read vhost-net: fix handle_rx buffer size bonding: don't increase rx_dropped after processing LACPDUs connector/userns: replace netlink uses of cap_raised() with capable() sctp: check cached dst before using it pktgen: fix crash at module unload Revert "net: maintain namespace isolation between vlan and real device" ehea: fix losing of NEQ events when one event occurred early igb: fix rtnl race in PM resume path ipv4: Do not use dead fib_info entries. r8169: fix unsigned int wraparound with TSO sfc: Fix division by zero when using one RX channel and no SR-IOV openvswitch: Validation of IPv6 set port action uses IPv4 header net: compare_ether_addr[_64bits]() has no ordering cdc_ether: Ignore bogus union descriptor for RNDIS devices bnx2x: bug fix when loading after SAN boot e1000: Silence sparse warnings by correcting type igb, ixgbe: netdev_tx_reset_queue incorrectly called from tx init path openvswitch: Release rtnl_lock if ovs_vport_cmd_build_info() failed. ...

dm mpath: check if scsi_dh module already loaded before trying to load

2012-05-12T00:43:21Z

If the requested scsi_dh module is already loaded then skip request_module(). Multipath table loads can hang in an unnecessary __request_module. Reported-by: Ben Marzinski Cc: stable@kernel.org Signed-off-by: Mike Snitzer Signed-off-by: Alasdair G Kergon