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GIT 1bc60b48157f140f72a98357b7f1f4eef12a887b
commit 4f61e1e687c45ee8c6820519fdd9027ed95bb774
Author: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Thu Jun 1 08:57:15 2017 +0200
target: Avoid target_shutdown_sessions loop during queue_depth change
When target_shutdown_sessions() is invoked to shutdown all active
sessions associated with a se_node_acl when se_node_acl->queue_depth
is changed via core_tpg_set_initiator_node_queue_depth(), it's
possible that new connections reconnect immediately after explicit
shutdown occurs via target_shutdown_sessions().
Which means it's possible for the newly reconnected session with
the proper queue_depth can be shutdown multiple times when
target_shutdown_sessions() loops to drain all active sessions
for all cases.
This was regression was introduced by:
commit bc6e6bb470eda42f44bcac96c261cff1216577b3
Author: Christoph Hellwig <hch@lst.de>
Date: Mon May 2 15:45:19 2016 +0200
target: consolidate and fix session shutdown
To avoid this case, instead change target_shutdown_sessions() to
pass 'do_restart' and avoid the looping drain of sessions when
invoked via core_tpg_set_initiator_node_queue_depth(), but still
loop during normal se_node_acl delete until all associated
sessions have been shutdown.
(v2 - go back to the original version instead of a local list,
in order to protect list_del_init(&sess->sess_acl_list) from
transport_deregister_session_configfs.
Also use safe list walking in target_shutdown_sessions - nab)
Cc: Christoph Hellwig <hch@lst.de>
Cc: Mike Christie <mchristi@redhat.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: <stable@vger.kernel.org> # 4.7+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
commit e4c078873f138fc2db3256ed1454c5fadd109e81
Author: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Thu Jun 1 20:21:33 2017 -0700
iscsi-target: Avoid holding ->tpg_state_lock during param update
As originally reported by Jia-Ju, iscsit_tpg_enable_portal_group()
holds iscsi_portal_group->tpg_state_lock while updating AUTHMETHOD
via iscsi_update_param_value(), which performs a GFP_KERNEL
allocation.
However, since iscsit_tpg_enable_portal_group() is already protected
by iscsit_get_tpg() -> iscsi_portal_group->tpg_access_lock in it's
parent caller, ->tpg_state_lock only needs to be held when setting
TPG_STATE_ACTIVE.
Reported-by: Jia-Ju Bai <baijiaju1990@163.com>
Reviewed-by: Jia-Ju Bai <baijiaju1990@163.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
commit 06fd91ce633d46898e1d0b272a342a4c9b310b34
Author: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Thu Jun 1 03:11:18 2017 -0700
target/configfs: Kill se_lun->lun_link_magic
Instead of using a hardcoded magic value in se_lun when verifying
a target config_item symlink source during target_fabric_mappedlun_link(),
go ahead and use target_fabric_port_item_ops directly instead.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Mike Christie <mchristi@redhat.com>
Cc: Hannes Reinecke <hare@suse.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
commit 9af17008a0add07105569ba6adaa60078e5b36fa
Author: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Thu Jun 1 03:10:53 2017 -0700
target/configfs: Kill se_device->dev_link_magic
Instead of using a hardcoded magic value in se_device when verifying
a target config_item symlink source during target_fabric_port_link(),
go ahead and use target_core_dev_item_ops directly instead.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Mike Christie <mchristi@redhat.com>
Cc: Hannes Reinecke <hare@suse.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
commit 1b7d8dd63b27518c97990c64321293fdb929cf30
Author: Yunlei He <heyunlei@huawei.com>
Date: Thu Jun 1 16:43:51 2017 +0800
f2fs: fix a panic caused by NULL flush_cmd_control
Mount fs with option noflush_merge, boot failed for illegal address
fcc in function f2fs_issue_flush:
if (!test_opt(sbi, FLUSH_MERGE)) {
ret = submit_flush_wait(sbi);
atomic_inc(&fcc->issued_flush); -> Here, fcc illegal
return ret;
}
Signed-off-by: Yunlei He <heyunlei@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
commit dbc30d988661f652f9d61d8f112f2cf4fb9a0bab
Author: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Date: Thu Jun 1 16:50:10 2017 +0800
f2fs: remove the unnecessary cast for PTR_ERR
It's not necessary to specify 'int' casting for PTR_ERR.
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
commit a7e7fd11b8efb1a5a9525ec4667faf11f3fbfed1
Author: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Thu Jun 1 15:39:27 2017 -0700
f2fs: remove false-positive bug_on
For example,
f2fs_create
- new_node_page is failed
- handle_failed_inode
- skip to add it into orphan list, since ni.blk_addr == NULL_ADDR
: set_inode_flag(inode, FI_FREE_NID)
f2fs_evict_inode
- EIO due to fault injection
- f2fs_bug_on() is triggered
So, we don't need to call f2fs_bug_on in this case.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
commit ce0407e1e88392deaf20fca542d139cdbeeb75a8
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Tue May 2 15:22:26 2017 -0700
rcutorture: Don't wait for kernel when all builds fail
Currently, rcutorture groups runs in batches, building each scenario in
a given batch, then invoking qemu to run all the kernels in the batch.
Of course, if a given scenario's kernel fails to build, there is no qemu
run for that scenario. And if all of the kernels in a given batch fail
to build, there are no runs, and rcutorture immediately starts on the
next batch.
But not if --jitter has been specified, which it is by default. In this
case, the jitter scripts are started unconditionally, and rcutorture
waits for them to complete, even though there are no kernels to run.
This commit therefore checks for this situation, and refuses to start
jitter unless at least one of the kernels in the batch built successfully.
This saves substantial time when all scenarios' kernels fail to build,
particularly if a long --duration was specified.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit 597635ee552b0fe91521cffe688b0c6085b19778
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Mon May 1 17:49:29 2017 -0700
torture: Add --kconfig argument to kvm.sh
Currently, testing a variant of an existing scenario requires editing
that scenario's file or creating a new scenario file. This is messy
and error prone with respect to changes to scenarios.
This commit therefore adds a --kconfig argument to kvm.sh, so that
'--kconfig "CONFIG_RCU_TRACE=y CONFIG_RCU_EQS_DEBUG=n" will override those
two Kconfig options. In addition, there is now clear precedence:
the config fragment overrides CFcommon, and the --kconfig argument
overrides both.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit 0d51d5d59e8767cb2b7d74882b15d998433e07f9
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Fri May 26 16:16:40 2017 -0700
srcu: Move rcu_scheduler_starting() from Tiny RCU to Tiny SRCU
Other than lockdep support, Tiny RCU has no need for the
scheduler status. However, Tiny SRCU will need this to control
boot-time behavior independent of lockdep. Therefore, this commit
moves rcu_scheduler_starting() from kernel/rcu/tiny_plugin.h to
kernel/rcu/srcutiny.c. This in turn allows the complete removal of
kernel/rcu/tiny_plugin.h.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit be215bb343adb2b3b0e9b4f18e728eb7a39b12d6
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Fri May 26 17:31:45 2017 -0700
rcutorture: Select CONFIG_PROVE_LOCKING for Tiny SRCU scenario
This commit selects CONFIG_PROVE_LOCKING for the SRCU-u scenario
to get better test coverage.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit 8a2ccf36fd4eea0b1f9121e7781363050cf365a5
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Thu May 25 08:51:48 2017 -0700
rcu: Create reasonable API for do_exit() TASKS_RCU processing
Currently, the exit-time support for TASKS_RCU is open-coded in do_exit().
This commit creates exit_tasks_rcu_start() and exit_tasks_rcu_finish()
APIs for do_exit() use. This has the benefit of confining the use of the
tasks_rcu_exit_srcu variable to one file, allowing it to become static.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit 035932dfada84331bbec2f126b53c3f377f32daa
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Thu May 25 08:23:06 2017 -0700
rcu: Remove CONFIG_TASKS_RCU ifdef from rcuperf.c
The synchronize_rcu_tasks() and call_rcu_tasks() APIs are now available
regardless of kernel configuration, so this commit removes the
CONFIG_TASKS_RCU ifdef from rcuperf.c.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit ddd3da98d603c72dcbf32f53cf4a204fcc2abff8
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Thu May 25 08:05:00 2017 -0700
rcu: Drive TASKS_RCU directly off of PREEMPT
The actual use of TASKS_RCU is only when PREEMPT, otherwise RCU-sched
is used instead. This commit therefore makes synchronize_rcu_tasks()
and call_rcu_tasks() available always, but mapped to synchronize_sched()
and call_rcu_sched(), respectively, when !PREEMPT. This approach also
allows some #ifdefs to be removed from rcutorture.
Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Ingo Molnar <mingo@kernel.org>
commit 14c8d59b22d326ea33f4e0e1b8612d0903189633
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Mon May 22 13:59:52 2017 -0700
rcutorture: Print SRCU lock/unlock totals
This commit adds printing of SRCU lock/unlock totals, which are just
the sums of the per-CPU counts. Saves a bit of mental arithmetic.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit ed5cbd3db8d718a6c880904432b439e8b5e6abf6
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Mon May 22 13:31:03 2017 -0700
rcutorture: Move SRCU status printing to SRCU implementations
This commit gets rid of some ugly #ifdefs in rcutorture.c by moving
the SRCU status printing to the SRCU implementations.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit 6ba3472d3218db2be12c6f1c6a40e56daafc2335
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Tue May 30 15:20:37 2017 -0700
module: Fix pr_fmt() bug for header use of printk
This commit removes the pr_fmt() macro, replacing it with mod_err() and
mod_debug() macros to avoid errors when using printk() from header files.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit e2b41e3196cb8320f81fa10bda17d17ddcf6e419
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Sat Apr 29 20:03:20 2017 -0700
rcu: Use timer as backstop for NOCB deferred wakeups
The handling of RCU's no-CBs CPUs has a maintenance headache, namely
that if call_rcu() is invoked with interrupts disabled, the rcuo kthread
wakeup must be defered to a point where we can be sure that scheduler
locks are not held. Of course, there are a lot of code paths leading
from an interrupts-disabled invocation of call_rcu(), and missing any
one of these can result in excessive callback-invocation latency, and
potentially even system hangs.
This commit therefore uses a timer to guarantee that the wakeup will
eventually occur. If one of the deferred-wakeup points kicks in, then
the timer is simply cancelled.
This commit also fixes up an incomplete removal of commits that were
intended to plug remaining exit paths, which should have the added
benefit of reducing the overhead of RCU's context-switch hooks.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
[ paulmck: Dan Carpenter fix for mod_timer() usage bug found by smatch. ]
commit 1b9d76e44cac9aaa2e7d19fe746252b4b41d8353
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Wed Nov 30 06:24:30 2016 -0800
sched,rcu: Make cond_resched() provide RCU quiescent state
There is some confusion as to which of cond_resched() or
cond_resched_rcu_qs() should be added to long in-kernel loops.
This commit therefore eliminates the decision by adding RCU quiescent
states to cond_resched(). This commit also simplifies the code that
used to interact with cond_resched_rcu_qs(), and that now interacts with
cond_resched(), to reduce its overhead. This reduction is necessary to
allow the heavier-weight cond_resched_rcu_qs() mechanism to be invoked
everywhere that cond_resched() is invoked.
Part of that reduction in overhead converts the jiffies_till_sched_qs
kernel parameter to read-only at runtime, thus eliminating the need for
bounds checking.
Reported-by: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
commit c3fa663c7c4b86dc42a23cf72607616a6cc4da92
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Wed May 17 10:54:29 2017 -0700
rcu: Remove RCU CPU stall warnings from Tiny RCU
Tiny RCU's job is to be tiny, so this commit removes its RCU CPU
stall warning code. After this, there is no longer any need for
rcu_sched_ctrlblk and rcu_bh_ctrlblk to be in tiny_plugin.h, so this
commit also moves them to tiny.c.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit e574636033dbb5f720c7d008ec073a8af6c53539
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Wed May 17 10:17:03 2017 -0700
rcu: Remove event tracing from Tiny RCU
This commit saves a few lines by getting rid of Tiny RCU's event tracing.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit d53d3a286a91da65d09ab3dccf93f32a2d53648f
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Wed May 17 09:19:44 2017 -0700
rcu: Move RCU debug Kconfig options to kernel/rcu
RCU's debugging Kconfig options are in the unintuitive location
lib/Kconfig.debug, and there are enough of them that it would be good for
them to be more centralized. This commit therefore extracts RCU's Kconfig
options from init/Kconfig into a new kernel/rcu/Kconfig.debug file.
Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit 287b1b5a0b431a5b85747140d1d91ecb72ece1e3
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Wed May 17 08:43:40 2017 -0700
rcu: Move RCU non-debug Kconfig options to kernel/rcu
RCU's Kconfig options are scattered, and there are enough of them
that it would be good for them to be more centralized. This commit
therefore extracts RCU's Kconfig options from init/Kconfig into a new
kernel/rcu/Kconfig file.
Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit 4c22da1f2c0a63172d567403316fcf2006dac7a2
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Mon May 15 16:26:34 2017 -0700
rcu: Eliminate NOCBs CPU-state Kconfig options
The CONFIG_RCU_NOCB_CPU_ALL, CONFIG_RCU_NOCB_CPU_NONE, and
CONFIG_RCU_NOCB_CPU_ZERO Kconfig options are used only in testing and
are redundant with the rcu_nocbs= boot parameter. This commit therefore
removes these three Kconfig options and adjusts the rcutorture scripts
to use the boot parameter instead.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit 64d6535de2b2949d005b81f98a224cd7992e7e7c
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Mon May 15 15:30:32 2017 -0700
rcu: Remove debugfs tracing
RCU's debugfs tracing used to be the only reasonable low-level debug
information available, but ftrace and event tracing has since surpassed
the RCU debugfs level of usefulness. This commit therefore removes
RCU's debugfs tracing.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit 0ce2e8a0aa44d456179b47c31ff3e48b5b0a7e64
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Mon May 15 14:57:01 2017 -0700
srcu: Remove Classic SRCU
Classic SRCU was only ever intended to be a fallback in case of issues
with Tree/Tiny SRCU, and the latter two are doing quite well in testing.
This commit therefore removes Classic SRCU.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit 49ba6fb1e68f5ab828f1f789295a97ad691e076c
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Sun May 14 17:06:30 2017 -0700
srcu: Fix rcutorture-statistics typo
The function srcutorture_get_gp_data() duplicated the check for
sp->batch_check0.head instead of also checking sp->batch_check1.head.
The only effect of this typo would be for rcutorture statistics to
understate the fraction of time that an SRCU grace period was in flight,
and only for Classic SRCU. This commit fixes this typo.
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit 27ad1d73e8271e565825b9072a2ddfd82a355a05
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Fri May 12 15:56:35 2017 -0700
rcu: Remove SPARSE_RCU_POINTER Kconfig option
The sparse-based checking for non-RCU accesses to RCU-protected pointers
has been around for a very long time, and it is now the only type of
sparse-based checking that is optional. This commit therefore makes
it unconditional.
Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
commit 0dd218086c81075a539385667f51452c006b04fc
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Fri May 12 14:37:19 2017 -0700
rcu: Remove the now-obsolete PROVE_RCU_REPEATEDLY Kconfig option
The PROVE_RCU_REPEATEDLY Kconfig option was initially added due to
the volume of messages from PROVE_RCU: Doing just one per boot would
have required excessive numbers of boots to locate them all. However,
PROVE_RCU messages are now relatively rare, so there is no longer any
reason to need more than one such message per boot. This commit therefore
removes the PROVE_RCU_REPEATEDLY Kconfig option.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
commit 742714427fbaaa6a9ad877a2409e569eb4ade08d
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Thu May 11 15:33:23 2017 -0700
rcu: Remove typecheck() from RCU locking wrapper functions
Because raw_spin_lock_irqsave() and raw_spin_unlock_irqrestore()
both do typecheck() on their flags argument, there is no point in
duplicating this check in raw_spin_lock_irqsave_rcu_node() and
raw_spin_unlock_irqrestore_rcu_node(). This commit therefore saves
a few lines by removing this duplicated check.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit 06a7b44feb2f317e6ff3066a0a69caa86701b871
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Thu May 11 12:01:50 2017 -0700
rcu: Remove #ifdef moving rcu_end_inkernel_boot from rcupdate.h
This commit removes a #ifdef and saves a few lines of code by moving
the rcu_end_inkernel_boot() function from include/linux/rcupdate.h to
include/linux/rcutiny.h (for TINY_RCU) and to include/linux/rcutree.h
(for TREE_RCU).
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit 5e62cf9dc3773c3ec8f08f86b441b0d6f0e472e2
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Thu May 11 11:26:22 2017 -0700
rcu: Remove nohz_full full-system-idle state machine
The NO_HZ_FULL_SYSIDLE full-system-idle capability was added in 2013
by commit 0edd1b1784cb ("nohz_full: Add full-system-idle state machine"),
but has not been used. This commit therefore removes it.
If it turns out to be needed later, this commit can always be reverted.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
commit a34830f754e21c81c9ef7c89b65f61797d1b17dd
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Wed May 10 15:57:16 2017 -0700
rcu: Remove the RCU_KTHREAD_PRIO Kconfig option
Anything that can be done with the RCU_KTHREAD_PRIO Kconfig option can
also be done with the rcutree.kthread_prio kernel boot parameter.
This commit therefore removes this Kconfig option.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Rik van Riel <riel@redhat.com>
commit ed4b57aa2231315ce6d242d5348526d685172f61
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Wed May 10 14:36:55 2017 -0700
rcu: Remove *_SLOW_* Kconfig options
The RCU_TORTURE_TEST_SLOW_PREINIT, RCU_TORTURE_TEST_SLOW_PREINIT_DELAY,
RCU_TORTURE_TEST_SLOW_PREINIT_DELAY, RCU_TORTURE_TEST_SLOW_INIT,
RCU_TORTURE_TEST_SLOW_INIT_DELAY, RCU_TORTURE_TEST_SLOW_CLEANUP,
and RCU_TORTURE_TEST_SLOW_CLEANUP_DELAY Kconfig options are only
useful for torture testing, and there are the rcutree.gp_cleanup_delay,
rcutree.gp_init_delay, and rcutree.gp_preinit_delay kernel boot parameters
that rcutorture can use instead. The effect of these parameters is to
artificially slow down grace period initialization and cleanup in order
to make some types of race conditions happen more often.
This commit therefore simplifies Tree RCU a bit by removing the Kconfig
options and adding the corresponding kernel parameters to rcutorture's
.boot files instead. However, this commit also leaves out the kernel
parameters for TREE02, TREE04, and TREE07 in order to have about the
same number of tests slowed as not slowed. TREE01, TREE03, TREE05,
and TREE06 are slowed, and the rest are not slowed.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit 1b8b5fe04eceed655e21f58e5f5b0d034d2892a2
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Tue May 9 15:00:14 2017 -0700
srcu: Use rnp->lock wrappers to replace explicit memory barriers
This commit uses TREE RCU's rnp->lock wrappers to replace a few explicit
memory barriers. This change also has the advantage of making SRCU's
memory-ordering properties be implemented in roughly the same way as they
are in Tree RCU.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit e3a95369a3f612804d09a12b0edcc6581b7f5368
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Tue May 9 13:28:51 2017 -0700
rcu: Move rnp->lock wrappers for SRCU use
This commit moves the now-generic rnp->lock wrapper macros from
kernel/rcu/tree.h to kernel/rcu/rcu.h, thus allowing SRCU to use them.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit 642b6fda21c2e31c1e3d667d41d0f2f2e021aafe
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Tue May 9 12:05:46 2017 -0700
rcu: Convert rnp->lock wrappers to macros for SRCU use
Use of smp_mb__after_unlock_lock() would allow SRCU to omit a full
memory barrier during callback execution, so this commit converts
raw_spin_lock_rcu_node() from inline functions to type-generic macros
to allow them to handle locks in srcu_node structures as well as
rcu_node structures.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit 8820bc038470f90fd584fada46b6b0d551d1c259
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Wed May 3 15:24:25 2017 -0700
rcu: Refactor #includes from include/linux/rcupdate.h
The list of #includes from include/linux/rcupdate.h has grown quite
a bit, so it is time to trim it. This commit moves the #include
of include/linux/ktime.h to include/linux/rcutiny.h, along with the
Tiny-RCU-only function that was the only thing needing ktimem.h. It then
reconstructs the files included into include/linux/ktime.h based on what
is actually needed, with significant help from the 0day Test Robot.
This single change reduces the .i file footprint from rcupdate.h from
9018 lines to 7101 lines.
Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit 2411354d68627e94d9d2e4c9ea96c8cd06a040f6
Author: Arnd Bergmann <arnd@arndb.de>
Date: Wed May 31 09:26:07 2017 -0700
bcm47xx: Fix build regression
Commit 0bc2d534708b ("rcu: Refactor #includes from include/linux/rcupdate.h")
caused a build regression in an MTD partition driver:
In file included from drivers/mtd/bcm47xxpart.c:12:0:
include/linux/bcm47xx_nvram.h: In function 'bcm47xx_nvram_init_from_mem':
include/linux/bcm47xx_nvram.h:27:10: error: 'ENOTSUPP' undeclared (first use in this function)
The rcupdate.h file has no particular need for linux/errno.h, so this
commit includes linux/errno.h into bcm47xx_nvram.h.
Fixes: 0bc2d534708b ("rcu: Refactor #includes from include/linux/rcupdate.h")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit fe47d563065c91cd30088d9b118b79d44905be6f
Author: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Date: Thu Jun 1 16:07:15 2017 -0400
net: dsa: factor skb freeing on xmit
As of a86d8becc3f0 ("net: dsa: Factor bottom tag receive functions"),
the rcv caller frees the original SKB in case or error.
Be symmetric with that and make the xmit caller do the same.
At the same time, fix the checkpatch NULL comparison check:
CHECK: Comparison to NULL could be written "!nskb"
#208: FILE: net/dsa/tag_trailer.c:35:
+ if (nskb == NULL)
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 5470979585d81271d4338c2accfd5e71dafa4af6
Author: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Date: Thu Jun 1 16:07:14 2017 -0400
net: dsa: remove out_drop label in taggers rcv
Many rcv functions from net/dsa/tag_*.c have a useless out_drop goto
label which simply returns NULL. Kill it in favor of the obvious.
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 717ffbfb28ac2b53d3140b2a7dfd345e1569b3a5
Author: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Date: Thu Jun 1 16:07:13 2017 -0400
net: dsa: remove dsa_uses_tagged_protocol
Since dev->dsa_ptr is a pointer to a dsa_switch_tree, there is no need
to have another inline helper just to check rcv.
Remove dsa_uses_tagged_protocol and check dsa_ptr && dsa_ptr->rcv
together at the same time.
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 02f840cbc9fa9ee147d882edb96b203999c3ac62
Author: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Date: Thu Jun 1 16:07:12 2017 -0400
net: dsa: do not cast dst
dsa_ptr is not a void pointer anymore since Nov 2011, as of cf50dcc24f82
("dsa: Change dsa_uses_{dsa, trailer}_tags() into inline functions"),
but an explicit dsa_switch_tree pointer, thus remove the (void *) cast.
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 73a7ece8f70c955464080e434b5324bcdfdcb1b1
Author: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Date: Thu Jun 1 16:07:11 2017 -0400
net: dsa: comment hot path requirements
The DSA layer uses inline helpers and copy of the tagging functions for
faster access in hot path. Add comments to detail that.
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 30181faae37fa80d3aa73672e5df5f2a5b8dea0a
Author: Bart Van Assche <bart.vanassche@sandisk.com>
Date: Wed May 31 14:43:50 2017 -0700
nfsd: Check queue type before submitting a SCSI request
Since using scsi_req() is only allowed against request queues for
which struct scsi_request is the first member of their private
request data, refuse to submit SCSI commands against a queue for
which this is not the case.
References: commit 82ed4db499b8 ("block: split scsi_request out of struct request")
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: J. Bruce Fields <bfields@redhat.com>
Cc: Jeff Layton <jlayton@poochiereds.net>
Cc: Omar Sandoval <osandov@fb.com>
Cc: linux-nfs@vger.kernel.org
Signed-off-by: Jens Axboe <axboe@fb.com>
commit 73d17701db503382eeed03afb3a6c39ec4d9a5c7
Author: Bart Van Assche <bart.vanassche@sandisk.com>
Date: Wed May 31 14:43:49 2017 -0700
cdrom: Check SCSI passthrough support before reading audio
The CDROMREADAUDIO ioctl uses SCSI passthrough when the .disk
pointer has been set in struct cdrom_device_info. Hence check
whether SCSI passthrough is supported before submitting a SCSI
command. Note: both the ide-cd and sr drivers set the disk
pointer in struct cdrom_device_info but neither the pcd nor
the gdrom driver sets that pointer.
References: commit 82ed4db499b8 ("block: split scsi_request out of struct request")
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Omar Sandoval <osandov@fb.com>
Cc: linux-block@vger.kernel.org
Signed-off-by: Jens Axboe <axboe@fb.com>
commit ec2be6a98e50d3eb9f35f70aa51c5d2c23737c55
Author: Bart Van Assche <bart.vanassche@sandisk.com>
Date: Wed May 31 14:43:48 2017 -0700
pktcdvd: Check queue type before attaching to a queue
Since the pktcdvd driver only supports request queues for which
struct scsi_request is the first member of their private request
data, refuse to register block layer queues for which struct
scsi_request is not the first member of the private data.
References: commit 82ed4db499b8 ("block: split scsi_request out of struct request")
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
commit d9f972644606ecc2581390b43cb5a980b54c04bf
Author: Bart Van Assche <bart.vanassche@sandisk.com>
Date: Wed May 31 14:43:47 2017 -0700
bsg: Check queue type before attaching to a queue
Since BSG only supports request queues for which struct scsi_request
is the first member of their private request data, refuse to register
block layer queues for which struct scsi_request is not the first
member of their private data.
References: commit bd1599d931ca ("scsi_transport_sas: fix BSG ioctl memory corruption")
References: commit 82ed4db499b8 ("block: split scsi_request out of struct request")
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
commit 9efc160f4bbd69b17b48edec53067537d04e62b7
Author: Bart Van Assche <bart.vanassche@sandisk.com>
Date: Wed May 31 14:43:46 2017 -0700
block: Introduce queue flag QUEUE_FLAG_SCSI_PASSTHROUGH
From the context where a SCSI command is submitted it is not always
possible to figure out whether or not the queue the command is
submitted to has struct scsi_request as the first member of its
private data. Hence introduce the flag QUEUE_FLAG_SCSI_PASSTHROUGH.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Omar Sandoval <osandov@fb.com>
Cc: Don Brace <don.brace@microsemi.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
commit 0266f79778de0afadd070941aae493c28529d974
Author: Ido Schimmel <idosch@mellanox.com>
Date: Wed May 31 21:33:42 2017 +0300
mlxsw: spectrum: Add bridge dependency for spectrum
When BRIDGE is a loadable module, MLXSW_SPECTRUM mustn't be built-in:
drivers/built-in.o: In function `mlxsw_sp_bridge_device_create':
drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c:145: undefined reference to `br_vlan_enabled'
drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c:158: undefined reference to `br_multicast_enabled'
drivers/built-in.o: In function `mlxsw_sp_dev_rif_type':
drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c:2972: undefined reference to `br_vlan_enabled'
drivers/built-in.o: In function `mlxsw_sp_inetaddr_vlan_event':
drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c:3310: undefined reference to `br_vlan_enabled'
Add Kconfig dependency to enforce usable configurations.
Fixes: c57529e1d5d8 ("mlxsw: spectrum: Replace vPorts with Port-VLAN")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reported-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Tested-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit edea55abb86ff67afda96120d6254290e7a75d9e
Author: Bart Van Assche <bart.vanassche@sandisk.com>
Date: Thu Jun 1 08:55:13 2017 -0700
blk-mq-debugfs: Add 'kick' operation
Running a queue causes the block layer to examine the per-CPU and
hw queues but not the requeue list. Hence add a 'kick' operation
that also examines the requeue list.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Eduardo Valentin <eduval@amazon.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
commit 2720bab50258782573df0f536681bece11e784f0
Author: Bart Van Assche <bart.vanassche@sandisk.com>
Date: Thu Jun 1 08:55:12 2017 -0700
blk-mq-debugfs: Show busy requests
Requests that got stuck in a block driver are neither on
blk_mq_ctx.rq_list nor on any hw dispatch queue. Make these
visible in debugfs through the "busy" attribute.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Eduardo Valentin <eduval@amazon.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Omar Sandoval <osandov@fb.com>
Cc: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
commit 8ef1a191038c138d5675933cd69d47747d0d396b
Author: Bart Van Assche <bart.vanassche@sandisk.com>
Date: Thu Jun 1 08:55:11 2017 -0700
blk-mq-debugfs: Show requeue list
When verifying whether or not a blk-mq driver forgot to kick the
requeue list after having requeued a request it is important to
be able to verify the contents of the requeue list. Hence export
that list through debugfs.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Eduardo Valentin <eduval@amazon.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
commit c0cb1c6d39060ce04470b10347b7b6f1df77bef5
Author: Bart Van Assche <bart.vanassche@sandisk.com>
Date: Thu Jun 1 08:55:10 2017 -0700
blk-mq-debugfs: Show atomic request flags
When analyzing e.g. queue lockups it is important to know whether
or not a request has already been started. Hence also show the
atomic request flags.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Eduardo Valentin <eduval@amazon.com>
Cc: Omar Sandoval <osandov@fb.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
commit 79e498a9c7da0737829ff864aae44df434105676
Author: Leonard Crestez <leonard.crestez@nxp.com>
Date: Wed May 31 13:29:30 2017 +0300
net: phy: micrel: Restore led_mode and clk_sel on resume
These bits seem to be lost after a suspend/resume cycle so just set them
again. Do this by splitting the handling of these bits into a function
that is also called on resume.
This patch fixes ethernet suspend/resume on imx6ul-14x14-evk boards.
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit e6f4292ae0a1e73fae26ced57de13a48f71ad1fa
Author: Leonard Crestez <leonard.crestez@nxp.com>
Date: Wed May 31 13:29:29 2017 +0300
ARM: dts: imx6ul-14x14-evk: Add ksz8081 phy properties
Right now mach-imx6ul registers a fixup for the ksz8081 phy. The same
register values can be set through the micrel phy driver by using dts
properties.
This seems preferable and allows cleanly fixing suspend/resume.
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 2428fd0fe5508f5d8599d70cd6f650e19e835b5a
Author: LABBE Corentin <clabbe.montjoie@gmail.com>
Date: Wed May 31 09:18:52 2017 +0200
arm64: defconfig: Enable dwmac-sun8i driver on defconfig
Enable the dwmac-sun8i ethernet driver as a module in the ARM64 defconfig.
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 5209324407477f5dbe2ad6def17584e80b7faa91
Author: LABBE Corentin <clabbe.montjoie@gmail.com>
Date: Wed May 31 09:18:51 2017 +0200
arm: multi_v7: Enable dwmac-sun8i driver on multi_v7_defconfig
Enable the dwmac-sun8i driver in the multi_v7 default configuration
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit b97a96848011322f7ce24c7a4dce5c0066846e56
Author: LABBE Corentin <clabbe.montjoie@gmail.com>
Date: Wed May 31 09:18:50 2017 +0200
arm: sunxi: Enable dwmac-sun8i driver on sunxi_defconfig
Enable the dwmac-sun8i driver in the sunxi default configuration
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 67e29b4240e305c687b43de908c51f842ce1b507
Author: LABBE Corentin <clabbe.montjoie@gmail.com>
Date: Wed May 31 09:18:49 2017 +0200
arm64: allwinner: bananapi-m64: Enable dwmac-sun8i
The dwmac-sun8i hardware is present on the BananaPi M64.
It uses an external PHY rtl8211e via RGMII.
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 72aa5f0fd198569be85c843bbbf6ec4a06553910
Author: LABBE Corentin <clabbe.montjoie@gmail.com>
Date: Wed May 31 09:18:48 2017 +0200
arm64: allwinner: pine64-plus: Enable dwmac-sun8i
The dwmac-sun8i hardware is present on the pine64 plus.
It uses an external PHY rtl8211e via RGMII.
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 93264150b017ae1d3edbae883d0df6962d859180
Author: LABBE Corentin <clabbe.montjoie@gmail.com>
Date: Wed May 31 09:18:47 2017 +0200
arm64: allwinner: pine64: Enable dwmac-sun8i
The dwmac-sun8i hardware is present on the pine64
It uses an external PHY via RMII.
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 103aefa01c1ba7528a6035658dcf43f85409115d
Author: LABBE Corentin <clabbe.montjoie@gmail.com>
Date: Wed May 31 09:18:46 2017 +0200
arm64: allwinner: sun50i-a64: add dwmac-sun8i Ethernet driver
The dwmac-sun8i is an Ethernet MAC that supports 10/100/1000 Mbit
connections. It is very similar to the device found in the Allwinner
H3, but lacks the internal 100 Mbit PHY and its associated control
bits.
This adds the necessary bits to the Allwinner A64 SoC .dtsi, but keeps
it disabled at this level.
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit b89acf34c6427104b63cdc2be9300c80540728ed
Author: LABBE Corentin <clabbe.montjoie@gmail.com>
Date: Wed May 31 09:18:45 2017 +0200
arm64: allwinner: sun50i-a64: Add dt node for the syscon control module
This patch add the dt node for the syscon register present on the
Allwinner A64.
Only two register are present in this syscon and the only one useful is
the one dedicated to EMAC clock.
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 6f9461d6a489b3e9884a7a4eb9df6f20ad7c5857
Author: LABBE Corentin <clabbe.montjoie@gmail.com>
Date: Wed May 31 09:18:44 2017 +0200
arm: sun8i: nanopi-neo: Enable dwmac-sun8i
The dwmac-sun8i hardware is present on the NanoPi Neo.
It uses the internal PHY.
This patch create the needed emac node.
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 29eb9d2984402db5e303c476c8efa8a2f587196b
Author: LABBE Corentin <clabbe.montjoie@gmail.com>
Date: Wed May 31 09:18:43 2017 +0200
arm: sun8i: orangepi-pc-plus: Set EMAC activity LEDs to active high
On the Orange Pi PC Plus, the polarity of the LEDs on the RJ45 Ethernet
port were changed from active low to active high.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 0d38218c4d84ec1a975195cf45eeda0fae6b0c0a
Author: LABBE Corentin <clabbe.montjoie@gmail.com>
Date: Wed May 31 09:18:42 2017 +0200
arm: sun8i: orangepi-2: Enable dwmac-sun8i
The dwmac-sun8i hardware is present on the Orange PI 2.
It uses the internal PHY.
This patch create the needed emac node.
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit bec8f59b740d8e4f6c7fa868487f795a5897b09a
Author: LABBE Corentin <clabbe.montjoie@gmail.com>
Date: Wed May 31 09:18:41 2017 +0200
arm: sun8i: orangepi-one: Enable dwmac-sun8i
The dwmac-sun8i hardware is present on the Orange PI One.
It uses the internal PHY.
This patch create the needed emac node.
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 0e4da3444597a737e26d296d782227674effc5b7
Author: LABBE Corentin <clabbe.montjoie@gmail.com>
Date: Wed May 31 09:18:40 2017 +0200
arm: sun8i: orangepi-zero: Enable dwmac-sun8i
The dwmac-sun8i hardware is present on the Orange PI Zero.
It uses the internal PHY.
This patch create the needed emac node.
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 62781b28785d3b21b58152489fea6fe14450eaaf
Author: LABBE Corentin <clabbe.montjoie@gmail.com>
Date: Wed May 31 09:18:39 2017 +0200
arm: sun8i: orangepi-pc: Enable dwmac-sun8i
The dwmac-sun8i hardware is present on the Orange PI PC.
It uses the internal PHY.
This patch create the needed emac node.
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 33125eaae481ad7da6b281f25b77a7bc91732b25
Author: LABBE Corentin <clabbe.montjoie@gmail.com>
Date: Wed May 31 09:18:38 2017 +0200
arm: sun8i: sunxi-h3-h5: add dwmac-sun8i ethernet driver
The dwmac-sun8i is an ethernet MAC hardware that support 10/100/1000
speed.
This patch enable the dwmac-sun8i on Allwinner H3/H5 SoC Device-tree.
SoC H3/H5 have an internal PHY, so optionals syscon and ephy are set.
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 2c0cba482e795ff2cae4729bd1522b289c5b4412
Author: LABBE Corentin <clabbe.montjoie@gmail.com>
Date: Wed May 31 09:18:37 2017 +0200
arm: sun8i: sunxi-h3-h5: Add dt node for the syscon control module
This patch add the dt node for the syscon register present on the
Allwinner H3/H5
Only two register are present in this syscon and the only one useful is
the one dedicated to EMAC clock..
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 9f93ac8d4085f718d3c7c5fedcb98dbdd2287648
Author: LABBE Corentin <clabbe.montjoie@gmail.com>
Date: Wed May 31 09:18:36 2017 +0200
net-next: stmmac: Add dwmac-sun8i
The dwmac-sun8i is a heavy hacked version of stmmac hardware by
allwinner.
In fact the only common part is the descriptor management and the first
register function.
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit ce5a4ff3c5058a1c934d3416385948a499a62e6f
Author: LABBE Corentin <clabbe.montjoie@gmail.com>
Date: Wed May 31 09:18:35 2017 +0200
dt-bindings: syscon: Add DT bindings documentation for Allwinner syscon
This patch adds documentation for Device-Tree bindings for the
syscon present in allwinner devices.
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 0441bde003bee53a61d7e365562a295f2049ca53
Author: LABBE Corentin <clabbe.montjoie@gmail.com>
Date: Wed May 31 09:18:34 2017 +0200
dt-bindings: net-next: Add DT bindings documentation for Allwinner dwmac-sun8i
This patch adds documentation for Device-Tree bindings for the
Allwinner dwmac-sun8i driver.
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit ec33d71de7309c50531c2ae0eb178244899e6e46
Author: LABBE Corentin <clabbe.montjoie@gmail.com>
Date: Wed May 31 09:18:33 2017 +0200
net-next: stmmac: add optional setup function
Instead of adding more ifthen logic for adding a new mac_device_info
setup function, it is easier to add a function pointer to the function
needed.
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 3874191898675ac34b6d1d94cfe997c570492bbb
Author: LABBE Corentin <clabbe.montjoie@gmail.com>
Date: Wed May 31 09:18:32 2017 +0200
net-next: stmmac: export stmmac_set_mac_addr/stmmac_get_mac_addr
Thoses symbol will be needed for the dwmac-sun8i ethernet driver.
For letting it to be build as module, they need to be exported.
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 93818da5eed63fbc17b64080406ea53b86b23309
Author: Jia-Ju Bai <baijiaju1990@163.com>
Date: Wed May 31 15:08:25 2017 +0800
mISDN: Fix a sleep-in-atomic bug
The driver may sleep under a read spin lock, and the function call path is:
send_socklist (acquire the lock by read_lock)
skb_copy(GFP_KERNEL) --> may sleep
To fix it, the "GFP_KERNEL" is replaced with "GFP_ATOMIC".
Signed-off-by: Jia-Ju Bai <baijiaju1990@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 042cc409349f997d8a04f26829e4a048538a9794
Author: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Wed May 31 15:43:37 2017 +1000
powerpc: use asm-generic/socket.h as much as possible
asm-generic/socket.h already has an exception for the differences that
powerpc needs, so just include it after defining the differences.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 35cf2845563c1aaa01d27bd34d64795c4ae72700
Author: Lance Richardson <lrichard@redhat.com>
Date: Mon May 29 13:25:57 2017 -0400
vxlan: eliminate cached dst leak
After commit 0c1d70af924b ("net: use dst_cache for vxlan device"),
cached dst entries could be leaked when more than one remote was
present for a given vxlan_fdb entry, causing subsequent netns
operations to block indefinitely and "unregister_netdevice: waiting
for lo to become free." messages to appear in the kernel log.
Fix by properly releasing cached dst and freeing resources in this
case.
Fixes: 0c1d70af924b ("net: use dst_cache for vxlan device")
Signed-off-by: Lance Richardson <lrichard@redhat.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 44225c9c79ae288b5f1668dc5dda7ba9f87995f1
Author: Chris Packham <chris.packham@alliedtelesis.co.nz>
Date: Thu May 25 11:49:13 2017 +1200
mtd: mchp23k256: switch to mtd_device_register()
Use mtd_device_register() instead of mtd_device_parse_register() to
eliminate two unused parameters.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
commit 4db4d35ebda390b5287d758fdd51b26c24fbc26b
Author: Chris Packham <chris.packham@alliedtelesis.co.nz>
Date: Thu May 25 11:49:12 2017 +1200
mtd: mchp23k256: Add OF device ID table
This allows registering of this device via a Device Tree.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
commit cf97825862f0acd7d6bad67da59962e4badc870a
Author: Vadim Lomovtsev <Vadim.Lomovtsev@caviumnetworks.com>
Date: Wed May 31 18:51:57 2017 +0300
EDAC, thunderx: Fix a warning during l2c debugfs node creation
Compare the number of debugfs entries created by
thunderx_create_debugfs_nodes() with the requested number of entries to
properly determine whether to print a warning.
Signed-off-by: Vadim Lomovtsev <Vadim.Lomovtsev@caviumnetworks.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: linux-mips@linux-mips.org
Link: http://lkml.kernel.org/r/20170531155157.93583-1-stemerkhanov@cavium.com
Signed-off-by: Sergey Temerkhanov <s.temerkhanov@gmail.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
commit 1151f838cb626005f4d69bf675dacaaa5ea909d6
Author: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Date: Fri May 19 16:42:00 2017 +0100
arm64: kernel: restrict /dev/mem read() calls to linear region
When running lscpu on an AArch64 system that has SMBIOS version 2.0
tables, it will segfault in the following way:
Unable to handle kernel paging request at virtual address ffff8000bfff0000
pgd = ffff8000f9615000
[ffff8000bfff0000] *pgd=0000000000000000
Internal error: Oops: 96000007 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 1284 Comm: lscpu Not tainted 4.11.0-rc3+ #103
Hardware name: QEMU QEMU Virtual Machine, BIOS 0.0.0 02/06/2015
task: ffff8000fa78e800 task.stack: ffff8000f9780000
PC is at __arch_copy_to_user+0x90/0x220
LR is at read_mem+0xcc/0x140
This is caused by the fact that lspci issues a read() on /dev/mem at the
offset where it expects to find the SMBIOS structure array. However, this
region is classified as EFI_RUNTIME_SERVICE_DATA (as per the UEFI spec),
and so it is omitted from the linear mapping.
So let's restrict /dev/mem read/write access to those areas that are
covered by the linear region.
Reported-by: Alexander Graf <agraf@suse.de>
Fixes: 4dffbfc48d65 ("arm64/efi: mark UEFI reserved regions as MEMBLOCK_NOMAP")
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
commit cae285ea12b54adb99fb758f9edc0333606e4f89
Author: Richard Gong <richard.gong@intel.com>
Date: Thu Jun 1 09:23:59 2017 -0500
dt-bindings: reset: Add reset manager offsets for Stratix10
There are several changes in reset manager offsets from Arria10 to
Stratix10. This patch is based on one from Arria10 and adds offset
updates for Stratix10
Signed-off-by: Richard Gong <richard.gong@intel.com>
commit ffd526e290f118e634a642314245f416f2aaaba5
Author: Stefan Berger <stefanb@linux.vnet.ibm.com>
Date: Thu May 25 18:29:13 2017 -0400
tpm: vtpm_proxy: Suppress error logging when in closed state
Suppress the error logging when the core TPM driver sends commands
to the VTPM proxy driver and -EPIPE is returned in case the VTPM
proxy driver is 'closed' (closed anonymous file descriptor). This
error code is only returned by the send function and by tpm_transmit
when the VTPM proxy driver is being used.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
commit 0fde7ad71ee371ede73b3f326e58f9e8d102feb6
Author: David S. Miller <davem@davemloft.net>
Date: Thu Jun 1 09:42:46 2017 -0700
sparc64: Fix build warnings with gcc 7.
arch/sparc/kernel/ds.c: In function ‘register_services’:
arch/sparc/kernel/ds.c:912:3: error: ‘strcpy’: writing at least 1 byte
into a region of size 0 overflows the destination
Reported-by: Anatoly Pugachev <matorola@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit aeb073241fe7a2b932e04e20c60e47718332877f
Author: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Date: Thu Jun 1 18:07:55 2017 +0300
net: bridge: start hello timer only if device is up
When the transition of NO_STP -> KERNEL_STP was fixed by always calling
mod_timer in br_stp_start, it introduced a new regression which causes
the timer to be armed even when the bridge is down, and since we stop
the timers in its ndo_stop() function, they never get disabled if the
device is destroyed before it's upped.
To reproduce:
$ while :; do ip l add br0 type bridge hello_time 100; brctl stp br0 on;
ip l del br0; done;
CC: Xin Long <lucien.xin@gmail.com>
CC: Ivan Vecera <cera@cera.cz>
CC: Sebastian Ott <sebott@linux.vnet.ibm.com>
Reported-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Fixes: 6d18c732b95c ("bridge: start hello_timer when enabling KERNEL_STP in br_stp_start")
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit ce6ef68f433f2c97e5d2cf35d2b694e17592d350
Author: Yotam Gigi <yotamg@mellanox.com>
Date: Thu Jun 1 16:26:46 2017 +0300
mlxsw: spectrum: Implement the ethtool flash_device callback
Add callback to the ethtool flash_device op. This callback uses the mlxfw
module to flash the new firmware file to the device.
As the firmware flash process takes about 20 seconds and ethtool takes the
rtnl lock during the flash_device callback, release the rtnl lock at the
beginning of the flash process and take it again before leaving the
callback. This way, the rtnl is not held during the process. To make sure
the device does not get deleted during the flash process, take a reference
to it before releasing the rtnl lock.
Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 3968d38917eb9bd0cd391265f6c9c538d9b33ffa
Author: Mintz, Yuval <Yuval.Mintz@cavium.com>
Date: Thu Jun 1 15:57:56 2017 +0300
bnx2x: Fix Multi-Cos
Apparently multi-cos isn't working for bnx2x quite some time -
driver implements ndo_select_queue() to allow queue-selection
for FCoE, but the regular L2 flow would cause it to modulo the
fallback's result by the number of queues.
The fallback would return a queue matching the needed tc
[via __skb_tx_hash()], but since the modulo is by the number of TSS
queues where number of TCs is not accounted, transmission would always
be done by a queue configured into using TC0.
Fixes: ada7c19e6d27 ("bnx2x: use XPS if possible for bnx2x_select_queue instead of pure hash")
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 1ee240e31d4c0a5fd37ebaf064ca1f6cb6adcb6f
Author: Mintz, Yuval <Yuval.Mintz@cavium.com>
Date: Thu Jun 1 15:29:11 2017 +0300
qed: No need to reset SBs on IOV init
Since we're resetting the IGU CAM each time we initialize the PF
device, there's no need to reset the VF SBs again when initializing
IOV.
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit ebbdcc669c7f9d8632d358a739d814485f8917dc
Author: Mintz, Yuval <Yuval.Mintz@cavium.com>
Date: Thu Jun 1 15:29:10 2017 +0300
qed: Reset IGU CAM to default on init
The IGU CAM contains an assocaition between hardware SBs
and interrupt lines, and it can be dynamically configured
to allow more interrupts in one entity over another, specifically
for Re-distibution of SBs between a PF and its child VFs.
While we don't yet use this functionality, there are other
clients that do and as such its possible the information
passed from management firmware during initialization in
regard to the possible number of SBs doesn't accurately reflect
the current HW configuration.
The following changes are going to apply to the driver init sequence:
a. PF is going to re-configure all entries belonging to itself and
its child VFs in IGU CAM based on the management firmware info
regarding the number of SBs that are supposed to exist there.
b. PF is going to stop using the SB resource [management firmware
provided information] for anything but the initialization.
Instead, it would use the live-time counters it maintains for
the numbers.
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 50a207147fceb64ad24c1e08e4a2a75535922e81
Author: Mintz, Yuval <Yuval.Mintz@cavium.com>
Date: Thu Jun 1 15:29:09 2017 +0300
qed: Hold a single array for SBs
A PF today holds 2 different arrays - one holding information
about the HW configuration and one holding information about
the SBs that are used by the protocol drivers.
These arrays aren't really connected - e.g., protocol driver
initializing a given SB would not mark the same SB as occupied
in the HW shadow array.
Move into a single array [at least for PFs] - hold the mapping
of the driver-protocol SBs on the HW entry which they configure.
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 09b6b14749523e3660b72be2ed91b3c0b852f58f
Author: Mintz, Yuval <Yuval.Mintz@cavium.com>
Date: Thu Jun 1 15:29:08 2017 +0300
qed: Provide auxiliary for getting free VF SB
IOV code is very intrusive in its manipulation of the status block
database.
Add a new auxiliary function to allow the PF to find an available unused
status block to configure for a specific VF's MSI-x vector.
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 1ac72433c565c8db38fd1f9db80a73193369e5fc
Author: Mintz, Yuval <Yuval.Mintz@cavium.com>
Date: Thu Jun 1 15:29:07 2017 +0300
qed: Remove assumption on SB order in IGU
Current code assumes there's a known layout for SBs in the IGU,
where all the SBs of a single entity would be laid in consecutive
order of vectors.
While the assumption is still kept by management firmware, we already
have the necessary information to eliminate it, so no reason to keep
it in code.
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 726fdbe9fa7ebccda1579716f68f8bae6fa9c87a
Author: Mintz, Yuval <Yuval.Mintz@cavium.com>
Date: Thu Jun 1 15:29:06 2017 +0300
qed: Encapsulate interrupt counters in struct
We already have an API struct that contains interrupt-related
numbers. Use it to encapsulate all information relating to the
status of SBs as (used|free).
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit a333f7f3fd327d736a23c52aafcfe17c75f2610c
Author: Mintz, Yuval <Yuval.Mintz@cavium.com>
Date: Thu Jun 1 15:29:05 2017 +0300
qed: Add aux. function translating sb_id -> igu_sb_id
An additional step for relaxing the IGU order assumption, we now add
an auxiliary function that can be used for finding the HW status block
that's associated with a given MSI-x vector.
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit d031548e9194714dc2e8cb928d9f671432c8a342
Author: Mintz, Yuval <Yuval.Mintz@cavium.com>
Date: Thu Jun 1 15:29:04 2017 +0300
qed: Distinguish between sb_id and igu_sb_id
In qed code, sb_id means 2 different things:
- An interrupt vector [usually when received as a parameter from
a protocol driver, but not only] that's associated with a status
block.
- An index to a status block entity existing in HW.
This patch renames the references to the HW entity, adding an 'igu_'
prefix to allow an easier distinction.
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit d749dd0dc117e7b02fa3a169c431476d59d18950
Author: Mintz, Yuval <Yuval.Mintz@cavium.com>
Date: Thu Jun 1 15:29:03 2017 +0300
qed: IGU read revised
As a first step for relaxing various assumptions done by driver
about the IGU m…- Loading branch information
