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16 years agomac80211: move TX info into skb->cb
Johannes Berg [Thu, 15 May 2008 10:55:29 +0000 (12:55 +0200)]
mac80211: move TX info into skb->cb

This patch converts mac80211 and all drivers to have transmit
information and status in skb->cb rather than allocating extra
memory for it and copying all the data around. To make it fit,
a union is used where only data that is necessary for all steps
is kept outside of the union.

A number of fixes were done by Ivo, as well as the rt2x00 part
of this patch.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: reorder some transmit handlers
Johannes Berg [Thu, 15 May 2008 10:55:28 +0000 (12:55 +0200)]
mac80211: reorder some transmit handlers

The next patch will require that transmit handlers that are after
fragmentation are aware of the fact that the control info is also
fragmented. To make that easier, this patch moves a number of
transmit handlers before fragmentation.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: use rate index in TX control
Johannes Berg [Thu, 15 May 2008 10:55:27 +0000 (12:55 +0200)]
mac80211: use rate index in TX control

This patch modifies struct ieee80211_tx_control to give band
info and the rate index (instead of rate pointers) to drivers.
This mostly serves to reduce the TX control structure size to
make it fit into skb->cb so that the fragmentation code can
put it there and we can think about passing it to drivers that
way in the future.

The rt2x00 driver update was done by Ivo, thanks.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: let drivers wake but not start queues
Johannes Berg [Thu, 15 May 2008 10:55:26 +0000 (12:55 +0200)]
mac80211: let drivers wake but not start queues

Having drivers start queues is just confusing, their ->start()
callback can block and do whatever is necessary, so let mac80211
start queues and have drivers wake queues when necessary (to get
packets flowing again right away.)

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: fix bugs in queue handling functions
Johannes Berg [Thu, 15 May 2008 10:55:25 +0000 (12:55 +0200)]
mac80211: fix bugs in queue handling functions

Commit 55c308c1315bc7267dbb88011c208fd743cdce31
("mac80211: QoS related cleanups") introduced another bug,
the queue handling functions that operate on all queues now
only operated on the first queues, not the A-MPDU queues as
expected. This patch fixes this.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: trigger event log from debugfs
Ester Kummer [Thu, 15 May 2008 05:54:18 +0000 (13:54 +0800)]
iwlwifi: trigger event log from debugfs

This patch adds a trigger for event log printing to debugfs.
It removes the triger from sysfs.

Signed-off-by: Ester Kummer <ester.kummer@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: refactor pci prob flow
Tomas Winkler [Thu, 15 May 2008 05:54:17 +0000 (13:54 +0800)]
iwlwifi: refactor pci prob flow

This patch refactores pci prob flow. It moves mac80211 registration
to the end, otherwise there is a race between error path in pci_probe
and mac_start.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: add debugfs to disable/enable run time calibration
Tomas Winkler [Thu, 15 May 2008 05:54:16 +0000 (13:54 +0800)]
iwlwifi: add debugfs to disable/enable run time calibration

This patch adds functionality to debugfs to enable or disable chain
noise or sensitivity calibrations.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: remove 4965 remainings in iwl-eeprom.c file
Tomas Winkler [Thu, 15 May 2008 05:54:15 +0000 (13:54 +0800)]
iwlwifi: remove 4965 remainings in iwl-eeprom.c file

The patch cleans up 4965 remaings from iwl-eeprom.c file.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: iwl5000 WiFi/WiMax coexistence
Ron Rindjunsky [Thu, 15 May 2008 05:54:14 +0000 (13:54 +0800)]
iwlwifi: iwl5000 WiFi/WiMax coexistence

This patch adds WiFi/WiMax coexistence to iwl5000.

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: add ucode init flow handling for iwl5000
Ron Rindjunsky [Thu, 15 May 2008 05:54:13 +0000 (13:54 +0800)]
iwlwifi: add ucode init flow handling for iwl5000

This patch adds all the handlers and functions needed for ucode
initialization flow.

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: add ucode loaders for iwl5000
Ron Rindjunsky [Thu, 15 May 2008 05:54:12 +0000 (13:54 +0800)]
iwlwifi: add ucode loaders for iwl5000

This patch adds ucode initialization handler and functions to load
ucode for iwl5000 NIC.

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: add rx_handlers stub for iwl5000
Ron Rindjunsky [Thu, 15 May 2008 05:54:11 +0000 (13:54 +0800)]
iwlwifi: add rx_handlers stub for iwl5000

This patch adds rx_handler_setup stub to iwl5000.

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: rename and move Tx queue activation/deactivation
Ron Rindjunsky [Thu, 15 May 2008 05:54:10 +0000 (13:54 +0800)]
iwlwifi: rename and move Tx queue activation/deactivation

This patch moves iwl4965_txq_ctx_activate and iwl4965_txq_ctx_deactivate
to iwl-dev.h and removes 4965 prefix from their names.

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: clean up and bug fix for security
Emmanuel Grumbach [Thu, 15 May 2008 05:54:09 +0000 (13:54 +0800)]
iwlwifi: clean up and bug fix for security

This patch cleans up code in security.

1) uses the new pointer to ieee80211_key_conf passed with the tx_control.
2) resolves bug reported by Mirco Tischler (sends ADD_STA in ASYNC mode)
3) resolves bug reported by Volker Braun regarding dynamic WEP
4) drops a WEP packet which has been garbaged by firmware. This can
happen upon rekeying.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: don't switch to SGI if not supported by AP
Emmanuel Grumbach [Thu, 15 May 2008 05:54:08 +0000 (13:54 +0800)]
iwlwifi: don't switch to SGI if not supported by AP

This patch fixes SGI support. RS didn't look at the capabilities of the AP
before switching to SGI, this should lead to a stall in the traffic with an
AP that doesn't support SGI.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Guy Cohen <guy.cohen@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: move TX code into iwl-tx.c
Tomas Winkler [Thu, 15 May 2008 05:54:07 +0000 (13:54 +0800)]
iwlwifi: move TX code into iwl-tx.c

This patch moves the sending part of the TX code into iwl-tx.c
including sending host commands.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: refactor ieee80211_get_qos_ctrl
Tomas Winkler [Thu, 15 May 2008 05:54:06 +0000 (13:54 +0800)]
iwlwifi: refactor ieee80211_get_qos_ctrl

This patch refactors ieee80211_get_qos_ctrl function and its usage
in iwlwifi drivers. Function is moved as inline into iwl-helpers.h.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: remove 4956 form iwl4965_tx_cmd
Tomas Winkler [Thu, 15 May 2008 05:54:05 +0000 (13:54 +0800)]
iwlwifi: remove 4956 form iwl4965_tx_cmd

This patch renames iwl4965_tx_cmd to iwl_tx_cmd and cleans
collateral code.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: move more station managment into iwl-sta.c
Tomas Winkler [Thu, 15 May 2008 05:54:04 +0000 (13:54 +0800)]
iwlwifi: move more station managment into iwl-sta.c

This patch moves station management functions into iwl-sta.c (iwlcore).

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: move iwl_bcast_addr to iwlcore
Tomas Winkler [Thu, 15 May 2008 05:54:03 +0000 (13:54 +0800)]
iwlwifi: move iwl_bcast_addr to iwlcore

This patch renames iwl4965_broadcast_addr to iwl_bcast_addr
and moves it to iwlcore.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: remove 4965 from iwl4965_rate_info
Tomas Winkler [Thu, 15 May 2008 05:54:02 +0000 (13:54 +0800)]
iwlwifi: remove 4965 from iwl4965_rate_info

This patch removes 4965 from iwl4965_rate_info structure and
associated variables.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: remove 4965 prefix from iwl4965_frame
Tomas Winkler [Thu, 15 May 2008 05:54:01 +0000 (13:54 +0800)]
iwlwifi: remove 4965 prefix from iwl4965_frame

This patch removes 4965 from iwl4965_frame struct and handling functions.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: remove 4965 from iwl4965_tx_queue_update_write_ptr
Tomas Winkler [Thu, 15 May 2008 05:54:00 +0000 (13:54 +0800)]
iwlwifi: remove 4965 from iwl4965_tx_queue_update_write_ptr

This patch renames iwl4965_tx_queue_update_write_ptr to
iwl_txq_update_write_ptr. This is a preparation for moving to iwl-tx.c.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: get_hw_cmd_size
Gregory Greenman [Thu, 15 May 2008 05:53:59 +0000 (13:53 +0800)]
iwlwifi: get_hw_cmd_size

This patch introduces a new handler get_hw_cmd_size in hcmd_utils,
which should adjust the size of the command sent to the microcode
according to the current nic.
It also changes the RXON flow to make usage of this new handler.

The patch also adds iwl_rxon_cmd structure which is supperset for
5000 HW and 4965.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: rename iwl4965_tx_info to iwl_tx_info
Tomas Winkler [Thu, 15 May 2008 05:53:58 +0000 (13:53 +0800)]
iwlwifi: rename iwl4965_tx_info to iwl_tx_info

This patch renames iwl4965_tx_info to iwl_tx_info.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: rename iwl4965_queue to iwl_queue
Tomas Winkler [Thu, 15 May 2008 05:53:57 +0000 (13:53 +0800)]
iwlwifi: rename iwl4965_queue to iwl_queue

This patch renames iwl4965_queue to iwl_queue.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: filling Tx MCS set
Ron Rindjunsky [Thu, 15 May 2008 05:53:56 +0000 (13:53 +0800)]
iwlwifi: filling Tx MCS set

This patch fills the needed data about HW capabilities in matters of
possible HT Tx MCS.

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: separate Tx and Rx MCS when configuring HT
Ron Rindjunsky [Thu, 15 May 2008 05:53:55 +0000 (13:53 +0800)]
mac80211: separate Tx and Rx MCS when configuring HT

This patch follows the 11n spec in separation between Tx and Rx MCS
capabilities. Up until now, when configuring the HT possible set of Tx
MCS only Rx MCS were considered, assuming they are the same as the Tx MCS.
This patch fixed this by looking at low level driver Tx capabilities.

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: remove iwl4965_nic_start function
Ron Rindjunsky [Thu, 15 May 2008 05:53:54 +0000 (13:53 +0800)]
iwlwifi: remove iwl4965_nic_start function

This patch moves the contant of iwl4965_nic_start to the only place it is
being used.

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: changing irrelevant comment
Ron Rindjunsky [Thu, 15 May 2008 05:53:53 +0000 (13:53 +0800)]
iwlwifi: changing irrelevant comment

This patch changes an old eeprom comment in probe flow.

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: tkip.c use struct tkip_ctx in phase 2 key mixing
Harvey Harrison [Wed, 14 May 2008 23:26:20 +0000 (16:26 -0700)]
mac80211: tkip.c use struct tkip_ctx in phase 2 key mixing

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: "John W. Linville" <linville@tuxdriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: tkip.c use struct tkip_ctx in phase 1 key mixing
Harvey Harrison [Wed, 14 May 2008 23:26:19 +0000 (16:26 -0700)]
mac80211: tkip.c use struct tkip_ctx in phase 1 key mixing

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: "John W. Linville" <linville@tuxdriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: add a struct to hold tkip context
Harvey Harrison [Wed, 14 May 2008 23:26:19 +0000 (16:26 -0700)]
mac80211: add a struct to hold tkip context

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: "John W. Linville" <linville@tuxdriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: add const, remove unused function, make one function static
Harvey Harrison [Wed, 14 May 2008 23:26:18 +0000 (16:26 -0700)]
mac80211: add const, remove unused function, make one function static

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: "John W. Linville" <linville@tuxdriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: introduce struct michael_mic_ctx and static helpers
Harvey Harrison [Wed, 14 May 2008 23:26:17 +0000 (16:26 -0700)]
mac80211: introduce struct michael_mic_ctx and static helpers

Replace the existing macro with a static function, significantly shrinks the
size of the produced object file.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: "John W. Linville" <linville@tuxdriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: michael.c use kernel-provided infrastructure
Harvey Harrison [Wed, 14 May 2008 23:26:16 +0000 (16:26 -0700)]
mac80211: michael.c use kernel-provided infrastructure

Replace private implementation of bit rotation and unaligned access helpers
with kernel-provided implementation.

Fold xswap helper in its one usage in the michael_block macro.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: "John W. Linville" <linville@tuxdriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agolibertas: reduce command retry time
Holger Schurig [Wed, 14 May 2008 14:30:28 +0000 (16:30 +0200)]
libertas: reduce command retry time

[PATCH, take 2] libertas: reduce command retry time

In the normal case, an unsuccessful command would be retried for 10*5 seconds,
or 10*10 seconds in the worst case. This patch reduces this to 3*3 seconds,
or 3*10 seconds in the worst case.

I also reduced the time it takes to start a new command downloaded.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: Consolidate hash kfree-ing in mesh.c.
Pavel Emelyanov [Wed, 7 May 2008 15:57:11 +0000 (19:57 +0400)]
mac80211: Consolidate hash kfree-ing in mesh.c.

There are already two places, that kfree the mesh_table and
its buckets.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: Merge error paths in mesh_table_grow().
Pavel Emelyanov [Wed, 7 May 2008 15:55:59 +0000 (19:55 +0400)]
mac80211: Merge error paths in mesh_table_grow().

This is the first (of two) clean ups after the fixes above.

The err variable is not even required after this cleaning.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: Do not report false error from mesh_path_add.
Pavel Emelyanov [Wed, 7 May 2008 15:54:04 +0000 (19:54 +0400)]
mac80211: Do not report false error from mesh_path_add.

In case the hash grow failed, it is not fair to return error -
the new node _was_ _actually_ added in this case.

Besides, after my previous patch, this grow is more likely
to fail on large hashes.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: Fix sleeping allocation under lock in mesh_path_node_copy.
Pavel Emelyanov [Wed, 7 May 2008 15:51:51 +0000 (19:51 +0400)]
mac80211: Fix sleeping allocation under lock in mesh_path_node_copy.

The mesh_path_node_copy() can be called like this:
mesh_path_add
 `- write_lock(&pathtbl_resize_lock); /* ! */
 `- mesh_table_grow
     `- ->copy_node
           `- mesh_path_node_copy

thus, the GFP_KERNEL is not suitable here.

The acceptable fix, I suppose, is make this allocation GPF_ATOMIC -
the mpath_node being allocated is 4 pointers, i.e. this allocation
is small enough to survive even under a moderate memory pressure.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: Report allocation failure from mesh_path_node_copy.
Pavel Emelyanov [Wed, 7 May 2008 15:48:14 +0000 (19:48 +0400)]
mac80211: Report allocation failure from mesh_path_node_copy.

Now - return the -ENOMEM in case kmalloc fails.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: Prepare mesh_table_grow to failing copy_node callback.
Pavel Emelyanov [Wed, 7 May 2008 15:47:01 +0000 (19:47 +0400)]
mac80211: Prepare mesh_table_grow to failing copy_node callback.

The mesh_path_node_copy() performs kmalloc() and thus - may fail
(well, it does not now, but I'm fixing this right now). Its caller -
the mesh_table_grow() - isn't prepared for such a trick yet.

This preparation is just flush the new hash and make copy_node()
return an int value.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: Fix one more call to synchronize_rcu in atomic context.
Pavel Emelyanov [Wed, 7 May 2008 15:44:20 +0000 (19:44 +0400)]
mac80211: Fix one more call to synchronize_rcu in atomic context.

(This set applies OK without the previous one of 4 patches,
 but with some fuzz in the 7th one)

The mesh_path_node_free() does so under hashwlock.

But, this one is called
1. from mesh_path_add() after an old hash is hidden and
   synchronize_rcu() is calld
2. mesh_pathtbl_unregister(), when the module is being
   unloaded and no devices exist to mess with this hash.

So, it seems to me, that simply removing the call is OK.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: Brush up error paths in mesh_path_add.
Pavel Emelyanov [Tue, 6 May 2008 14:53:43 +0000 (18:53 +0400)]
mac80211: Brush up error paths in mesh_path_add.

There are already tree paths, that do incremental rollbacks, so
merge them together, rename labels and format the code to look a
bit nicer.

(I do not mind dropping/delaying this patch however).

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agolibertas: sysfs interface for accessing default mesh channel
Javier Cardona [Tue, 20 May 2008 22:18:49 +0000 (15:18 -0700)]
libertas: sysfs interface for accessing default mesh channel

This will create the following entry:
/sys/class/net/mshX
            -- boot_options
            |   |-- ...
            |   `-- channel
            ...

... which I overlooked on my previous patch.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agolibertas: Add reset_card() callback to hardware driver
David Woodhouse [Tue, 20 May 2008 15:43:31 +0000 (16:43 +0100)]
libertas: Add reset_card() callback to hardware driver

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agolibertas: sysfs interface for accessing non-volatile configuration
Javier Cardona [Sun, 18 May 2008 04:01:24 +0000 (21:01 -0700)]
libertas: sysfs interface for accessing non-volatile configuration

This will create the following sysfs directories:
/sys/class/net/mshX
...
|-- boot_options
|   |-- bootflag
|   `-- boottime
...
|-- mesh_ie
|   |-- capability
|   |-- mesh_id
|   |-- metric_id
|   `-- protocol_id

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agolibertas: Extend MESH_CONFIG command to access non-volatile configuration
Javier Cardona [Sat, 17 May 2008 07:55:10 +0000 (00:55 -0700)]
libertas: Extend MESH_CONFIG command to access non-volatile configuration

This patch is based on a patch from Shailendra Govardhan and Brian Cavagnolo.
It extends the MESH_CONFIG command to configure non-volatile parameters on
libertas devices that support them (e.g. OLPC Active Antenna).

This patch only implements the driver/firmware interface.

See http://dev.laptop.org/ticket/6823 for minimal testing results and known
issues.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agolibertas: fix multicast filtering on eth and msh interfaces
David Woodhouse [Tue, 20 May 2008 12:32:45 +0000 (13:32 +0100)]
libertas: fix multicast filtering on eth and msh interfaces

We weren't properly handling multicast on the mesh interface. Fix that,
which involves setting up the hardware to use the union of dev->mc_list
for both eth%d and msh%d devices.

This means we can't do it directly from ->set_multicast_list() because
we'd need to lock the other device to read its list, and we can't do
that because it might deadlock. So punt the actual work to keventd.

Also, invoke the same when taking an interface down; for some reason the
core calls ->set_multicast_list while IFF_UP is still set in dev->flags
when we're taking it down, so its addresses don't get removed then.

We also convert MAC_MULTICAST_ADR to a direct command while we're at it,
removing one more entry from the big switch statement in the deprecated
lbs_prepare_and_send_command() function.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agolibertas: Increase priority of 'unknown command' warnings
David Woodhouse [Tue, 20 May 2008 10:47:16 +0000 (11:47 +0100)]
libertas: Increase priority of 'unknown command' warnings

Using the deprecated lbs_prepare_and_send_command() function for a
command which it doesn't understand is an error; complain loudly about
it even when we're not debugging.

The mesh stats bug, where we converted MESH_ACCESS to a direct command
but accidentally missed one user which was still trying to do it through
lbs_prepare_and_send_command(), would have been caught a lot quicker if
we'd done this sooner. Such bugs aren't entirely unlikely in future too,
as we convert more code to stop using this function.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agort2x00: Release rt2x00 2.1.6
Ivo van Doorn [Sat, 10 May 2008 11:45:50 +0000 (13:45 +0200)]
rt2x00: Release rt2x00 2.1.6

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agort2x00: Remove extra +
Ivo van Doorn [Sat, 10 May 2008 11:45:58 +0000 (13:45 +0200)]
rt2x00: Remove extra +

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agort2x00: Merge RX and TX entry private data
Ivo van Doorn [Sat, 10 May 2008 11:46:03 +0000 (13:46 +0200)]
rt2x00: Merge RX and TX entry private data

With the pending removal of the tx_control structure
we can merge the RX and TX entry private data structure
in advance. This will temporarily increase the required
memory for the queue, but that overhead will only be limited.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agort2x00: Remove redundant flags/dev_flags initializations
Ivo van Doorn [Sat, 10 May 2008 11:46:08 +0000 (13:46 +0200)]
rt2x00: Remove redundant flags/dev_flags initializations

the rxdesc structure is properly memsetted before passed to
the driver. This means we don't have to reinitialize the flags
and dev_flags fields in the drivers again.
This will prevent problems when the rxdone handler is adding
flags in a earlier status and will make the code look nicer
when we are adding more read attributes in the rxdone handler
in the driver.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agort2x00: Split rt2x00lib_write_tx_desc()
Ivo van Doorn [Sat, 10 May 2008 11:46:13 +0000 (13:46 +0200)]
rt2x00: Split rt2x00lib_write_tx_desc()

Split rt2x00lib_write_tx_desc() up into a TX descriptor initializor
and TX descriptor writer.

This split is required to properly allow mac80211 to move its
tx_control structure into the skb->cb array.
The rt2x00queue_create_tx_descriptor() function will read all tx control
information and convert it into a rt2x00 TX descriptor information structure.
After that function is complete, we have all information we needed from the
tx control structure and are free to start writing into the skb->cb array
for our own purposes.
rt2x00queue_write_tx_descriptor() will be in charge of really sending
the TX descriptor to the hardware and kicking the TX queue.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agort2x00: Only initialize the minimum needed fields of PCI TX descriptors.
Gertjan van Wingerde [Sat, 10 May 2008 11:44:14 +0000 (13:44 +0200)]
rt2x00: Only initialize the minimum needed fields of PCI TX descriptors.

In preparation of replacing the statically allocated data DMA buffers with DMA-mapped
skb's we need to change the TXD handling of the PCI drivers, by moving the programming
of the buffer address fields to the actual TXD writing at TX time, instead of at start-up
time.

Signed-off-by: Gertjan van Wingerde <gwingerde@kpnplanet.nl>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agort2x00: Preserve descriptor information after memmove()
Ivo van Doorn [Sat, 10 May 2008 11:43:38 +0000 (13:43 +0200)]
rt2x00: Preserve descriptor information after memmove()

Due to usage of memmove() in rt2x00usb the descriptor can become
corrupted because it is being overwritten by the data part.
Overall having the descriptor in front of the frame is a bad idea,
we can however use the skb->cb array for this task, since that
contains more then enough room to hold the entire descriptor and
preserve the information long enough.

After this we can also cleanup the alignment code a bit to make it
work a bit more flexible to allow for all kinds of odd header lengths.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agort2x00: Fix queue related oops in case of deselected mac80211 multi-queue feature.
Gertjan van Wingerde [Sat, 10 May 2008 11:43:33 +0000 (13:43 +0200)]
rt2x00: Fix queue related oops in case of deselected mac80211 multi-queue feature.

With the integration of the mac80211 multiqueue patches it has become possible that the
mac80211 layer modifies the number of TX queues that is stored inside the ieee80211_hw
structure, especially when multi-queue is not selected.

The rt2x00 drivers are not well suited to handle that situation, as they allocate the
queue structures before mac80211 has modified the number of queues it is going to use,
and also expect the number of allocated queues to match the hardware implementation.

Hence, ensure that rt2x00 maintains by itself the number of queues that the hardware
supports, and, at the same time, making is not dependent on the preservation of contents
inside a mac80211 structure.

Signed-off-by: Gertjan van Wingerde <gwingerde@kpnplanet.nl>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agort2x00: Remove ieee80211_tx_control argument from write_tx_desc()
Ivo van Doorn [Sat, 10 May 2008 11:42:31 +0000 (13:42 +0200)]
rt2x00: Remove ieee80211_tx_control argument from write_tx_desc()

Move the last remaining information details read from ieee80211_tx_control
in the drivers to the txentry_desc structure. After this we can
remove ieee80211_tx_control from the argument list for the callback function,
which makes it easier when the control information is moved into skb->cb

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agort2x00: Fix TX status reporting
Ivo van Doorn [Sat, 10 May 2008 11:42:06 +0000 (13:42 +0200)]
rt2x00: Fix TX status reporting

The tx_status enumeration was broken since the introduction
of rt61pci. That driver uses different values to report the
status of the tx action.
This would lead to frames that were reported as success but
actually failed to be send out, or frames that were neither
successfull or failure which were reported as failure.

Fix this by change the TX status reporting and more explicitely
check for failure or success. Note that a third possibility is
added "unknown". Not all hardware (USB) can report the actual
TX status, for rt61pci some frames will receive this status
because the TXdone handler is never called for those frames.
This unknown will now be handled as neither success or failure,
so we no longer increment the failure counter while this conclusion
could not be determined from the real status of the frame.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agort2x00: trim skb_frame_desc to 32 bytes
Ivo van Doorn [Sat, 10 May 2008 11:41:32 +0000 (13:41 +0200)]
rt2x00: trim skb_frame_desc to 32 bytes

Remove frame_type from skb_frame_desc and pass it
as argument to rt2x00debug_dump_frame().

Change data_len and desc_len to unsigned short
to save another 4 bytes in skb_frame_desc. Note that
this was the only location where the data_len and
desc_len was not yet treated as unsigned short.

This trim is required to help mac80211 with adding
the TX control and TX status informtation into the
skb->cb structure. When that happens, drivers will
have approximately 40 bytes left to use freely.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agotipc: Cosmetic cleanup of topology service code
Allan Stephens [Mon, 19 May 2008 20:30:13 +0000 (13:30 -0700)]
tipc: Cosmetic cleanup of topology service code

This patch contains a set of cosmetic changes to TIPC's network
topology service subsystem, including:

- updates to comments (including copyright dates)
- re-ordering structure fields to group them more logically
- removal of optional debugging code that is no longer required
- minor changes to whitespace to conform to Linux coding conventions

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agotipc: Consolidate subscriber & subscriber port references
Allan Stephens [Mon, 19 May 2008 20:29:47 +0000 (13:29 -0700)]
tipc: Consolidate subscriber & subscriber port references

This patch modifies TIPC's network topology service so that it
only requires a single reference table entry per subscriber
connection, rather than two.  This is achieved by letting the
reference to the server port communicating with the subscriber
act as the reference to the subscriber object itself.  (Since
the subscriber cannot exist without its port, and vice versa,
this dual role for the reference is perfectly natural.)  This
consolidation reduces the size of the reference table by 50%
in the default configuration.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agotipc: Fix bug in topology server byte swapping routine
Allan Stephens [Mon, 19 May 2008 20:29:06 +0000 (13:29 -0700)]
tipc: Fix bug in topology server byte swapping routine

This patch fixes TIPC's topology server so that it does byte swapping
correctly when endianness conversion is required.  (Note: This bug only
impacted an application if it issues a subscription request to a
topology server on another node, rather than the server on it's own
node; since the topology server is normally not accessible by off-node
applications, most TIPC applications were not impacted by the bug.)

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agotipc: Add support for customized subscription endianness
Allan Stephens [Mon, 19 May 2008 20:28:32 +0000 (13:28 -0700)]
tipc: Add support for customized subscription endianness

This patch enables TIPC's topology server code to do customized
endianness conversions on a per-subscription basis.  (This
capability is needed to support the upcoming consolidation of
subscriber and subscription object references.)

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agotipc: Add support for customized subscription overlap handling
Allan Stephens [Mon, 19 May 2008 20:27:31 +0000 (13:27 -0700)]
tipc: Add support for customized subscription overlap handling

This patch enables TIPC's topology server code to do customized
overlap detection handling on a per-subscription basis.  (This
capability is needed to support the upcoming introduction of
multi-cluster TIPC networks.)

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agobnx2: Update version to 1.7.6.
Michael Chan [Sat, 17 May 2008 05:20:59 +0000 (22:20 -0700)]
bnx2: Update version to 1.7.6.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agobnx2: Pre-initialize struct cpu_reg.
Benjamin Li [Sat, 17 May 2008 05:20:27 +0000 (22:20 -0700)]
bnx2: Pre-initialize struct cpu_reg.

Instead of assigning values for the struct cpu_reg's at runtime,
we already know these values at compile time.  Therefore, we can use
designated initializers, to initialize these structures and not have
to incur this assignment cost at run-time.

Signed-off-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agobnx2: Rename RX_COPY_THRESH to BNX2_RX_COPY_THRESH.
Benjamin Li [Sat, 17 May 2008 05:19:35 +0000 (22:19 -0700)]
bnx2: Rename RX_COPY_THRESH to BNX2_RX_COPY_THRESH.

To make the bnx2 code more consistent, all instances of
RX_COPY_THRESH have been changed to BNX2_RX_COPY_THRESH.

Signed-off-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agobnx2: Remove the rx_offset field from the bnx2 structure.
Benjamin Li [Sat, 17 May 2008 05:18:57 +0000 (22:18 -0700)]
bnx2: Remove the rx_offset field from the bnx2 structure.

The rx_offset field is set to a constant value and initialized
only once.  By replacing all references to the rx_offset field,
we can eliminate rx_offset from the bnx2 structure.  This will
save 4 bytes for every bnx2 instance.

[Added parentheses to the definition of BNX2_RX_OFFSET, as noted
by Ben Hutchings.]

Signed-off-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agobnx2: Add EEH PCI recovery.
Wendy Xiong [Sat, 17 May 2008 05:18:21 +0000 (22:18 -0700)]
bnx2: Add EEH PCI recovery.

Add PCI recovery functions to the driver.  The initial pci state is
also saved so the the MSI state can be restored during PCI recovery.

Signed-off-by: Wendy Xiong <wendyx@us.ibm.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agobnx2: Allow phy reset to be skipped during chip reset.
Michael Chan [Sat, 17 May 2008 05:17:45 +0000 (22:17 -0700)]
bnx2: Allow phy reset to be skipped during chip reset.

Andy Gospodarek <andy@greyhouse.net> found that netconsole would
panic when resetting bnx2 devices.

>From Andy:
"The issue is the bnx2_set_link in bnx2_init_nic will print a link-status
message before we are fully initialized and ready to start polling.
Polling is currently disabled in this state, but since the
__LINK_STATE_RX_SCHED is overloaded to not only try and disable polling
but also to make the system aware there is something waiting to be
polled, we really have to fix this in drivers.

The problematic call is the one to netif_rx_complete as it tries to
remove an entry from the poll_list when there isn't one."

While this netconsole problem should be fixed separately, we really
should not reset the PHY when changing ring sizes, MTU, or other
similar settings.  The PHY reset causes several seconds of unnecessary
link disruptions.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Acked-by: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
David S. Miller [Thu, 15 May 2008 07:52:37 +0000 (00:52 -0700)]
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6

16 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
David S. Miller [Thu, 15 May 2008 07:34:44 +0000 (00:34 -0700)]
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

Conflicts:

drivers/net/wireless/iwlwifi/iwl-4965-rs.c
drivers/net/wireless/rt2x00/rt61pci.c

16 years agoisdn/capi: Return proper errnos on module init.
Marcin Slusarz [Thu, 15 May 2008 06:30:06 +0000 (23:30 -0700)]
isdn/capi: Return proper errnos on module init.

cdebug_init() is called from kcapi_init() which is module
initialization function, so it must return negative values on errors.

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Acked-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agoiphase: Fix 64bit warning.
Alan Cox [Thu, 15 May 2008 06:28:47 +0000 (23:28 -0700)]
iphase: Fix 64bit warning.

Time is unsigned long (except when you are in a hurry) so we need to
store rx_tmp_jif in the right sized object.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agohysdn: No longer broken on SMP.
Andrew Morton [Thu, 15 May 2008 06:27:18 +0000 (23:27 -0700)]
hysdn: No longer broken on SMP.

With the cli/sti code sorted out we think this driver is OK for use on
SMP systems.

Acked-by: Mark Asselstine <mark.asselstine@windriver.com>
Acked-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agohysdn: Remove cli()/sti() calls.
Mark Asselstine [Thu, 15 May 2008 06:25:33 +0000 (23:25 -0700)]
hysdn: Remove cli()/sti() calls.

The use of cli()/sti() within the do/while was a way to ensure
interrupts were only disabled for short periods of time while the bulk
of the time interrupts were free to occur.  The use of the spin lock
has eliminated the need to play with interrupts in this way while
still allowing for IO to be protected.

The remaining 3 sti() calls seem unneeded now that at no other point
in the driver is there a call to cli().

Signed-off-by: Mark Asselstine <mark.asselstine@windriver.com>
Acked-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agoatm: Cleanup atm_tcp.h and atm.h for userspace.
Mike Frysinger [Thu, 15 May 2008 06:24:09 +0000 (23:24 -0700)]
atm: Cleanup atm_tcp.h and atm.h for userspace.

The atm_tcp.h uses types from linux/atm.h, but does not include it.
It should also use the standard __u## types from linux/types.h rather
than the uint##_t types since the former can be found with the kernel
already.

Same goes for linux/atm.h.  The linux/socket.h include there also gets
dropped as atm.h does not actually use anything from socket.h.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agobonding: handle case of device named bonding_master
Stephen Hemminger [Thu, 15 May 2008 05:35:04 +0000 (22:35 -0700)]
bonding: handle case of device named bonding_master

If device already exists named bonding_masters, then fail. This is a wierd
corner case only a QA group could love.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agosysfs: remove error messages for -EEXIST case
Stephen Hemminger [Thu, 15 May 2008 05:34:16 +0000 (22:34 -0700)]
sysfs: remove error messages for -EEXIST case

It is possible that the entry in sysfs already exists, one case of this is
when a network device is renamed to bonding_masters. Anyway, in this case
the proper error path is for device_rename to return an error code, not to
generate bogus backtrace and errors.

Also, to avoid possible races, the create link should be done before the
remove link. This makes a device rename atomic operation like other renames.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agonet: handle errors from device_rename
Stephen Hemminger [Thu, 15 May 2008 05:33:38 +0000 (22:33 -0700)]
net: handle errors from device_rename

device_rename can fail with -EEXIST or -ENOMEM, so handle any
problems.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh...
Linus Torvalds [Thu, 15 May 2008 02:30:13 +0000 (19:30 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs

* 'for-linus' of ssh://master.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
  9p: fix error path during early mount
  9p: make cryptic unknown error from server less scary
  9p: fix flags length in net
  9p: Correct fidpool creation failure in p9_client_create
  9p: use struct mutex instead of struct semaphore
  9p: propagate parse_option changes to client and transports
  fs/9p/v9fs.c (v9fs_parse_options): Handle kstrdup and match_strdup failure.
  9p: Documentation updates
  add match_strlcpy() us it to make v9fs make uname and remotename parsing more robust

16 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
Linus Torvalds [Thu, 15 May 2008 02:11:36 +0000 (19:11 -0700)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc64: Use a TS_RESTORE_SIGMASK
  lmb: Make lmb debugging more useful.
  lmb: Fix inconsistent alignment of size argument.
  sparc: Fix mremap address range validation.

16 years agonet/irda/irnet/irnet_irda.c needs unaligned.h
Andrew Morton [Wed, 14 May 2008 23:05:59 +0000 (16:05 -0700)]
net/irda/irnet/irnet_irda.c needs unaligned.h

net/irda/irnet/irnet_irda.c: In function 'irnet_discovery_indication':
net/irda/irnet/irnet_irda.c:1676: error: implicit declaration of function 'get_unaligned'

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agotty_check_change(): avoid taking tasklist_lock while holding tty->ctrl_lock
Andrew Morton [Wed, 14 May 2008 23:05:58 +0000 (16:05 -0700)]
tty_check_change(): avoid taking tasklist_lock while holding tty->ctrl_lock

May 11 09:42:27 [kernel] [ 1104.496819] rarian-sk-get-c[5630]: segfault at 0 ip 7f478556caf0 sp 7fff8e3fe338 error 4 in libc-2.6.1.so[7f47854f9000+136000]
May 11 10:59:48 [kernel] [ 2494.165792]
May 11 10:59:48 [kernel] [ 2494.165794] =======================================================
May 11 10:59:48 [kernel] [ 2494.165801] [ INFO: possible circular locking dependency detected ]
May 11 10:59:48 [kernel] [ 2494.165805] 2.6.26-rc1-00007-g91b3a7a #217
May 11 10:59:48 [kernel] [ 2494.165807] -------------------------------------------------------
May 11 10:59:48 [kernel] [ 2494.165809] less/7053 is trying to acquire lock:
May 11 10:59:48 [kernel] [ 2494.165812]  (tasklist_lock){..??}, at: [<ffffffff80232e95>] is_current_pgrp_orphaned+0x15/0x50
May 11 10:59:48 [kernel] [ 2494.165821]
May 11 10:59:48 [kernel] [ 2494.165822] but task is already holding lock:
May 11 10:59:48 [kernel] [ 2494.165824]  (&tty->ctrl_lock){....}, at: [<ffffffff803d5f31>] tty_check_change+0x61/0x110
May 11 10:59:48 [kernel] [ 2494.165831]
May 11 10:59:48 [kernel] [ 2494.165832] which lock already depends on the new lock.
May 11 10:59:48 [kernel] [ 2494.165833]
May 11 10:59:48 [kernel] [ 2494.165835]
May 11 10:59:48 [kernel] [ 2494.165836] the existing dependency chain (in reverse order) is:
May 11 10:59:48 [kernel] [ 2494.165838]
May 11 10:59:48 [kernel] [ 2494.165839] -> #2 (&tty->ctrl_lock){....}:
May 11 10:59:48 [kernel] [ 2494.165843]        [<ffffffff80253796>] __lock_acquire+0xf86/0x1080
May 11 10:59:48 [kernel] [ 2494.165851]        [<ffffffff80253922>] lock_acquire+0x92/0xc0
May 11 10:59:48 [kernel] [ 2494.165858]        [<ffffffff804deee0>] _spin_lock_irqsave+0x40/0x60
May 11 10:59:48 [kernel] [ 2494.165866]        [<ffffffff803d31b5>] __proc_set_tty+0x35/0xe0
May 11 10:59:48 [kernel] [ 2494.165873]        [<ffffffff803d76d4>] tty_ioctl+0xbf4/0xfe0
May 11 10:59:48 [kernel] [ 2494.165880]        [<ffffffff802a05e1>] vfs_ioctl+0x31/0x90
May 11 10:59:48 [kernel] [ 2494.165888]        [<ffffffff802a06b3>] do_vfs_ioctl+0x73/0x2d0
May 11 10:59:48 [kernel] [ 2494.165895]        [<ffffffff802a095a>] sys_ioctl+0x4a/0x80
May 11 10:59:48 [kernel] [ 2494.165902]        [<ffffffff8020b5ab>] system_call_after_swapgs+0x7b/0x80
May 11 10:59:48 [kernel] [ 2494.165910]        [<ffffffffffffffff>] 0xffffffffffffffff
May 11 10:59:48 [kernel] [ 2494.165924]
May 11 10:59:48 [kernel] [ 2494.165925] -> #1 (&sighand->siglock){++..}:
May 11 10:59:48 [kernel] [ 2494.165929]        [<ffffffff80253796>] __lock_acquire+0xf86/0x1080
May 11 10:59:48 [kernel] [ 2494.165936]        [<ffffffff80253922>] lock_acquire+0x92/0xc0
May 11 10:59:48 [kernel] [ 2494.165943]        [<ffffffff804dec1f>] _spin_lock+0x2f/0x40
May 11 10:59:48 [kernel] [ 2494.165951]        [<ffffffff8022d5a3>] copy_process+0x973/0x1210
May 11 10:59:48 [kernel] [ 2494.165959]        [<ffffffff8022df12>] do_fork+0x82/0x2f0
May 11 10:59:48 [kernel] [ 2494.165967]        [<ffffffff8020bfe1>] kernel_thread+0x81/0xde
May 11 10:59:48 [kernel] [ 2494.165974]        [<ffffffff8020c048>] child_rip+0xa/0x12
May 11 10:59:48 [kernel] [ 2494.165981]        [<ffffffffffffffff>] 0xffffffffffffffff
May 11 10:59:48 [kernel] [ 2494.166038]
May 11 10:59:48 [kernel] [ 2494.166039] -> #0 (tasklist_lock){..??}:
May 11 10:59:48 [kernel] [ 2494.166043]        [<ffffffff802535ab>] __lock_acquire+0xd9b/0x1080
May 11 10:59:48 [kernel] [ 2494.166050]        [<ffffffff80253922>] lock_acquire+0x92/0xc0
May 11 10:59:48 [kernel] [ 2494.166057]        [<ffffffff804dede2>] _read_lock+0x32/0x50
May 11 10:59:48 [kernel] [ 2494.166063]        [<ffffffff80232e95>] is_current_pgrp_orphaned+0x15/0x50
May 11 10:59:48 [kernel] [ 2494.166071]        [<ffffffff803d5f80>] tty_check_change+0xb0/0x110
May 11 10:59:48 [kernel] [ 2494.166078]        [<ffffffff803dac5f>] set_termios+0x1f/0x4c0
May 11 10:59:48 [kernel] [ 2494.166085]        [<ffffffff803db379>] tty_mode_ioctl+0x279/0x3e0
May 11 10:59:48 [kernel] [ 2494.166092]        [<ffffffff803db51d>] n_tty_ioctl+0x3d/0x260
May 11 10:59:48 [kernel] [ 2494.166100]        [<ffffffff803d6c34>] tty_ioctl+0x154/0xfe0
May 11 10:59:48 [kernel] [ 2494.166107]        [<ffffffff802a05e1>] vfs_ioctl+0x31/0x90
May 11 10:59:48 [kernel] [ 2494.166114]        [<ffffffff802a06b3>] do_vfs_ioctl+0x73/0x2d0
May 11 10:59:48 [kernel] [ 2494.166121]        [<ffffffff802a095a>] sys_ioctl+0x4a/0x80
May 11 10:59:48 [kernel] [ 2494.166128]        [<ffffffff8020b5ab>] system_call_after_swapgs+0x7b/0x80
May 11 10:59:48 [kernel] [ 2494.166135]        [<ffffffffffffffff>] 0xffffffffffffffff
May 11 10:59:48 [kernel] [ 2494.166142]
May 11 10:59:48 [kernel] [ 2494.166143] other info that might help us debug this:
May 11 10:59:48 [kernel] [ 2494.166144]
May 11 10:59:48 [kernel] [ 2494.166146] 1 lock held by less/7053:
May 11 10:59:48 [kernel] [ 2494.166148]  #0:  (&tty->ctrl_lock){....}, at: [<ffffffff803d5f31>] tty_check_change+0x61/0x110
May 11 10:59:48 [kernel] [ 2494.166155]
May 11 10:59:48 [kernel] [ 2494.166156] stack backtrace:
May 11 10:59:48 [kernel] [ 2494.166159] Pid: 7053, comm: less Not tainted 2.6.26-rc1-00007-g91b3a7a #217
May 11 10:59:48 [kernel] [ 2494.166161]
May 11 10:59:48 [kernel] [ 2494.166162] Call Trace:
May 11 10:59:48 [kernel] [ 2494.166168]  [<ffffffff80251223>] print_circular_bug_tail+0x83/0x90
May 11 10:59:48 [kernel] [ 2494.166172]  [<ffffffff80250889>] ? print_circular_bug_entry+0x49/0x60
May 11 10:59:48 [kernel] [ 2494.166178]  [<ffffffff802535ab>] __lock_acquire+0xd9b/0x1080
May 11 10:59:48 [kernel] [ 2494.166184]  [<ffffffff80232e95>] ? is_current_pgrp_orphaned+0x15/0x50
May 11 10:59:48 [kernel] [ 2494.166189]  [<ffffffff80253922>] lock_acquire+0x92/0xc0
May 11 10:59:48 [kernel] [ 2494.166206]  [<ffffffff803d5f80>] tty_check_change+0xb0/0x110
May 11 10:59:48 [kernel] [ 2494.166211]  [<ffffffff803dac5f>] set_termios+0x1f/0x4c0
May 11 10:59:48 [kernel] [ 2494.166216]  [<ffffffff803d3423>] ? tty_ldisc_try+0x23/0x60
May 11 10:59:48 [kernel] [ 2494.166220]  [<ffffffff803d3444>] ? tty_ldisc_try+0x44/0x60
May 11 10:59:48 [kernel] [ 2494.166224]  [<ffffffff804df2c5>] ? _spin_unlock_irqrestore+0x65/0x80
May 11 10:59:48 [kernel] [ 2494.166230]  [<ffffffff803db379>] tty_mode_ioctl+0x279/0x3e0
May 11 10:59:48 [kernel] [ 2494.166234]  [<ffffffff803d3444>] ? tty_ldisc_try+0x44/0x60
May 11 10:59:48 [kernel] [ 2494.166239]  [<ffffffff803db51d>] n_tty_ioctl+0x3d/0x260
May 11 10:59:48 [kernel] [ 2494.166244]  [<ffffffff803d6c34>] tty_ioctl+0x154/0xfe0
May 11 10:59:48 [kernel] [ 2494.166249]  [<ffffffff80252baa>] ? __lock_acquire+0x39a/0x1080
May 11 10:59:48 [kernel] [ 2494.166256]  [<ffffffff80252baa>] ? __lock_acquire+0x39a/0x1080
May 11 10:59:48 [kernel] [ 2494.166263]  [<ffffffff80252baa>] ? __lock_acquire+0x39a/0x1080
May 11 10:59:48 [kernel] [ 2494.166269]  [<ffffffff802a05e1>] vfs_ioctl+0x31/0x90
May 11 10:59:48 [kernel] [ 2494.166274]  [<ffffffff802a06b3>] do_vfs_ioctl+0x73/0x2d0
May 11 10:59:48 [kernel] [ 2494.166280]  [<ffffffff802a095a>] sys_ioctl+0x4a/0x80
May 11 10:59:48 [kernel] [ 2494.166286]  [<ffffffff8020b5ab>] system_call_after_swapgs+0x7b/0x80
May 11 10:59:48 [kernel] [ 2494.166292]

Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Reported-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoRemove blkdev warning triggered by using md
Neil Brown [Wed, 14 May 2008 23:05:54 +0000 (16:05 -0700)]
Remove blkdev warning triggered by using md

As setting and clearing queue flags now requires that we hold a spinlock
on the queue, and as blk_queue_stack_limits is called without that lock,
get the lock inside blk_queue_stack_limits.

For blk_queue_stack_limits to be able to find the right lock, each md
personality needs to set q->queue_lock to point to the appropriate lock.
Those personalities which didn't previously use a spin_lock, us
q->__queue_lock.  So always initialise that lock when allocated.

With this in place, setting/clearing of the QUEUE_FLAG_PLUGGED bit will no
longer cause warnings as it will be clear that the proper lock is held.

Thanks to Dan Williams for review and fixing the silly bugs.

Signed-off-by: NeilBrown <neilb@suse.de>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Alistair John Strachan <alistair@devzero.co.uk>
Cc: Nick Piggin <npiggin@suse.de>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Jacek Luczak <difrost.kernel@gmail.com>
Cc: Prakash Punnoor <prakash@punnoor.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agochar: select fw_loader by moxa
Jiri Slaby [Wed, 14 May 2008 23:05:53 +0000 (16:05 -0700)]
char: select fw_loader by moxa

Select FW_LOADER since moxa needs it, otherwise we face link problems such
as:

drivers/built-in.o: In function
moxa_pci_probe':moxa.c:(.devinit.text+0x76d8): undefined reference to
request_firmware'
:moxa.c:(.devinit.text+0x7e6e): undefined reference to release_firmware'
make: *** [.tmp_vmlinux1] Error 1

Reported-by: Philippe Roussel <p.o.roussel@free.fr>
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agomemory_hotplug: always initialize pageblock bitmap
Heiko Carstens [Wed, 14 May 2008 23:05:52 +0000 (16:05 -0700)]
memory_hotplug: always initialize pageblock bitmap

Trying to online a new memory section that was added via memory hotplug
sometimes results in crashes when the new pages are added via __free_page.
 Reason for that is that the pageblock bitmap isn't initialized and hence
contains random stuff.  That means that get_pageblock_migratetype()
returns also random stuff and therefore

list_add(&page->lru,
&zone->free_area[order].free_list[migratetype]);

in __free_one_page() tries to do a list_add to something that isn't even
necessarily a list.

This happens since 86051ca5eaf5e560113ec7673462804c54284456 ("mm: fix
usemap initialization") which makes sure that the pageblock bitmap gets
only initialized for pages present in a zone.  Unfortunately for hot-added
memory the zones "grow" after the memmap and the pageblock memmap have
been initialized.  Which means that the new pages have an unitialized
bitmap.  To solve this the calls to grow_zone_span() and grow_pgdat_span()
are moved to __add_zone() just before the initialization happens.

The patch also moves the two functions since __add_zone() is the only
caller and I didn't want to add a forward declaration.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Andy Whitcroft <apw@shadowen.org>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agomprotect: prevent alteration of the PAT bits
Venki Pallipadi [Wed, 14 May 2008 23:05:51 +0000 (16:05 -0700)]
mprotect: prevent alteration of the PAT bits

There is a defect in mprotect, which lets the user change the page cache
type bits by-passing the kernel reserve_memtype and free_memtype
wrappers.  Fix the problem by not letting mprotect change the PAT bits.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoper_cpu: fix DEFINE_PER_CPU_SHARED_ALIGNED for modules
Eric Dumazet [Wed, 14 May 2008 23:05:51 +0000 (16:05 -0700)]
per_cpu: fix DEFINE_PER_CPU_SHARED_ALIGNED for modules

Current module loader lookups ".data.percpu" ELF section to perform
per_cpu relocation.  But DEFINE_PER_CPU_SHARED_ALIGNED() uses another
section (".data.percpu.shared_aligned"), currently only handled in
vmlinux.lds, not by module loader.

To correct this problem, instead of adding logic into module loader, or
using at build time a module.lds file for all arches to group
".data.percpu.shared_aligned" into ".data.percpu", just use ".data.percpu"
for modules.

Alignment requirements are correctly handled by ld and module loader.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agomemory_hotplug: check for walk_memory_resource() failure in online_pages()
Geoff Levand [Wed, 14 May 2008 23:05:50 +0000 (16:05 -0700)]
memory_hotplug: check for walk_memory_resource() failure in online_pages()

Add a check to online_pages() to test for failure of
walk_memory_resource().  This fixes a condition where a failure
of walk_memory_resource() can lead to online_pages() returning
success without the requested pages being onlined.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Cc: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: Keith Mannthey <kmannth@us.ibm.com>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agolib: create common ascii hex array
Harvey Harrison [Wed, 14 May 2008 23:05:49 +0000 (16:05 -0700)]
lib: create common ascii hex array

Add a common hex array in hexdump.c so everyone can use it.

Add a common hi/lo helper to avoid the shifting masking that is
done to get the upper and lower nibbles of a byte value.

Pull the pack_hex_byte helper from kgdb as it is opencoded many
places in the tree that will be consolidated.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agovideo/logo: add support for Blackfin/Linux logo for framebuffer console
Robin Getz [Wed, 14 May 2008 23:05:48 +0000 (16:05 -0700)]
video/logo: add support for Blackfin/Linux logo for framebuffer console

This art design is beautiful, isn't it?  And you can watch our demo on
YouTube: http://youtube.com/watch?v=fKyQOntPEFs

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoext3/4: fix uninitialized bs in ext3/4_xattr_set_handle()
Tiger Yang [Wed, 14 May 2008 23:05:47 +0000 (16:05 -0700)]
ext3/4: fix uninitialized bs in ext3/4_xattr_set_handle()

This fix the uninitialized bs when we try to replace a xattr entry in
ibody with the new value which require more than free space.

This situation only happens we format ext3/4 with inode size more than 128 and
we have put xattr entries both in ibody and block.  The consequences about
this bug is we will lost the xattr block which pointed by i_file_acl with all
xattr entires in it.  We will alloc a new xattr block and put that large value
entry in it.  The old xattr block will become orphan block.

Signed-off-by: Tiger Yang <tiger.yang@oracle.com>
Cc: <linux-ext4@vger.kernel.org>
Cc: Andreas Gruenbacher <agruen@suse.de>
Acked-by: Andreas Dilger <adilger@sun.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agocgroups: fix compile warning
Mirco Tischler [Wed, 14 May 2008 23:05:46 +0000 (16:05 -0700)]
cgroups: fix compile warning

Return type of cpu_rt_runtime_write() should be int instead of ssize_t.

Signed-off-by: Mirco Tischler <mt-ml@gmx.de>
Acked-by: Paul Menage <menage@google.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoasm-{alpha,h8300,um,v850,xtensa}/param.h: unbreak HZ for userspace
Mike Frysinger [Wed, 14 May 2008 23:05:42 +0000 (16:05 -0700)]
asm-{alpha,h8300,um,v850,xtensa}/param.h: unbreak HZ for userspace

I noticed this because alpha was broken due to the recent commit commit
bdc807871d58285737d50dc6163d0feb72cb0dc2 ("avoid overflows in
kernel/time.c").  Most arches do something like this in their
asm/param.h:

#ifdef __KERNEL__
# define HZ CONFIG_HZ
#else
# define HZ 100
#endif

A few arches though (namely alpha/h8300/um/v850/xtensa) either do no set
HZ at all for !__KERNEL__, or they set it wrongly.  This should bring all
arches in line by setting up HZ for userspace.

Without this currently perl 5.10 doesn't build on alpha:

perl.c: In function 'perl_construct':
perl.c:388: error: 'CONFIG_HZ' undeclared (first use in this function)
-> http://buildd.debian.org/fetch.cgi?pkg=perl;ver=5.10.0-10;arch=alpha;stamp=1210252894

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: maximilian attems <max@stro.at>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
[ HZ on alpha is 1024 for historical reasons.  - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agojbd: need to hold j_state_lock to updates to transaction t_state to T_COMMIT
Mingming Cao [Wed, 14 May 2008 23:05:41 +0000 (16:05 -0700)]
jbd: need to hold j_state_lock to updates to transaction t_state to T_COMMIT

Updating the current transaction's t_state is protected by j_state_lock.  We
need to do the same when updating the t_state to T_COMMIT.

Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Acked-by: Jan Kara <jack@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>