02 Jan, 2017
1 commit
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Pull DAX updates from Dan Williams:
"The completion of Jan's DAX work for 4.10.As I mentioned in the libnvdimm-for-4.10 pull request, these are some
final fixes for the DAX dirty-cacheline-tracking invalidation work
that was merged through the -mm, ext4, and xfs trees in -rc1. These
patches were prepared prior to the merge window, but we waited for
4.10-rc1 to have a stable merge base after all the prerequisites were
merged.Quoting Jan on the overall changes in these patches:
"So I'd like all these 6 patches to go for rc2. The first three
patches fix invalidation of exceptional DAX entries (a bug which
is there for a long time) - without these patches data loss can
occur on power failure even though user called fsync(2). The other
three patches change locking of DAX faults so that ->iomap_begin()
is called in a more relaxed locking context and we are safe to
start a transaction there for ext4"These have received a build success notification from the kbuild
robot, and pass the latest libnvdimm unit tests. There have not been
any -next releases since -rc1, so they have not appeared there"* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
ext4: Simplify DAX fault path
dax: Call ->iomap_begin without entry lock during dax fault
dax: Finish fault completely when loading holes
dax: Avoid page invalidation races and unnecessary radix tree traversals
mm: Invalidate DAX radix tree entries only if appropriate
ext2: Return BH_New buffers for zeroed blocks
30 Dec, 2016
1 commit
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In commit 62906027091f ("mm: add PageWaiters indicating tasks are
waiting for a page bit") Nick Piggin made our page locking no longer
unconditionally touch the hashed page waitqueue, which not only helps
performance in general, but is particularly helpful on NUMA machines
where the hashed wait queues can bounce around a lot.However, the "clear lock bit atomically and then test the waiters bit"
sequence turns out to be much more expensive than it needs to be,
because you get a nasty stall when trying to access the same word that
just got updated atomically.On architectures where locking is done with LL/SC, this would be trivial
to fix with a new primitive that clears one bit and tests another
atomically, but that ends up not working on x86, where the only atomic
operations that return the result end up being cmpxchg and xadd. The
atomic bit operations return the old value of the same bit we changed,
not the value of an unrelated bit.On x86, we could put the lock bit in the high bit of the byte, and use
"xadd" with that bit (where the overflow ends up not touching other
bits), and look at the other bits of the result. However, an even
simpler model is to just use a regular atomic "and" to clear the lock
bit, and then the sign bit in eflags will indicate the resulting state
of the unrelated bit #7.So by moving the PageWaiters bit up to bit #7, we can atomically clear
the lock bit and test the waiters bit on x86 too. And architectures
with LL/SC (which is all the usual RISC suspects), the particular bit
doesn't matter, so they are fine with this approach too.This avoids the extra access to the same atomic word, and thus avoids
the costly stall at page unlock time.The only downside is that the interface ends up being a bit odd and
specialized: clear a bit in a byte, and test the sign bit. Nick doesn't
love the resulting name of the new primitive, but I'd rather make the
name be descriptive and very clear about the limitation imposed by
trying to work across all relevant architectures than make it be some
generic thing that doesn't make the odd semantics explicit.So this introduces the new architecture primitive
clear_bit_unlock_is_negative_byte();
and adds the trivial implementation for x86. We have a generic
non-optimized fallback (that just does a "clear_bit()"+"test_bit(7)"
combination) which can be overridden by any architecture that can do
better. According to Nick, Power has the same hickup x86 has, for
example, but some other architectures may not even care.All these optimizations mean that my page locking stress-test (which is
just executing a lot of small short-lived shell scripts: "make test" in
the git source tree) no longer makes our page locking look horribly bad.
Before all these optimizations, just the unlock_page() costs were just
over 3% of all CPU overhead on "make test". After this, it's down to
0.66%, so just a quarter of the cost it used to be.(The difference on NUMA is bigger, but there this micro-optimization is
likely less noticeable, since the big issue on NUMA was not the accesses
to 'struct page', but the waitqueue accesses that were already removed
by Nick's earlier commit).Acked-by: Nick Piggin
Cc: Dave Hansen
Cc: Bob Peterson
Cc: Steven Whitehouse
Cc: Andrew Lutomirski
Cc: Andreas Gruenbacher
Cc: Peter Zijlstra
Cc: Mel Gorman
Signed-off-by: Linus Torvalds
28 Dec, 2016
2 commits
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Pull networking fixes from David Miller:
1) Various ipvlan fixes from Eric Dumazet and Mahesh Bandewar.
The most important is to not assume the packet is RX just because
the destination address matches that of the device. Such an
assumption causes problems when an interface is put into loopback
mode.2) If we retry when creating a new tc entry (because we dropped the
RTNL mutex in order to load a module, for example) we end up with
-EAGAIN and then loop trying to replay the request. But we didn't
reset some state when looping back to the top like this, and if
another thread meanwhile inserted the same tc entry we were trying
to, we re-link it creating an enless loop in the tc chain. Fix from
Daniel Borkmann.3) There are two different WRITE bits in the MDIO address register for
the stmmac chip, depending upon the chip variant. Due to a bug we
could set them both, fix from Hock Leong Kweh.4) Fix mlx4 bug in XDP_TX handling, from Tariq Toukan.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
net: stmmac: fix incorrect bit set in gmac4 mdio addr register
r8169: add support for RTL8168 series add-on card.
net: xdp: remove unused bfp_warn_invalid_xdp_buffer()
openvswitch: upcall: Fix vlan handling.
ipv4: Namespaceify tcp_tw_reuse knob
net: korina: Fix NAPI versus resources freeing
net, sched: fix soft lockup in tc_classify
net/mlx4_en: Fix user prio field in XDP forward
tipc: don't send FIN message from connectionless socket
ipvlan: fix multicast processing
ipvlan: fix various issues in ipvlan_process_multicast() -
After commit 73b62bd085f4737679ea9afc7867fa5f99ba7d1b ("virtio-net:
remove the warning before XDP linearizing"), there's no users for
bpf_warn_invalid_xdp_buffer(), so remove it. This is a revert for
commit f23bc46c30ca5ef58b8549434899fcbac41b2cfc.Cc: Daniel Borkmann
Cc: John Fastabend
Signed-off-by: Jason Wang
Acked-by: Daniel Borkmann
Signed-off-by: David S. Miller
27 Dec, 2016
1 commit
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Currently invalidate_inode_pages2_range() and invalidate_mapping_pages()
just delete all exceptional radix tree entries they find. For DAX this
is not desirable as we track cache dirtiness in these entries and when
they are evicted, we may not flush caches although it is necessary. This
can for example manifest when we write to the same block both via mmap
and via write(2) (to different offsets) and fsync(2) then does not
properly flush CPU caches when modification via write(2) was the last
one.Create appropriate DAX functions to handle invalidation of DAX entries
for invalidate_inode_pages2_range() and invalidate_mapping_pages() and
wire them up into the corresponding mm functions.Acked-by: Johannes Weiner
Reviewed-by: Ross Zwisler
Signed-off-by: Jan Kara
Signed-off-by: Dan Williams
26 Dec, 2016
7 commits
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Pull timer type cleanups from Thomas Gleixner:
"This series does a tree wide cleanup of types related to
timers/timekeeping.- Get rid of cycles_t and use a plain u64. The type is not really
helpful and caused more confusion than clarity- Get rid of the ktime union. The union has become useless as we use
the scalar nanoseconds storage unconditionally now. The 32bit
timespec alike storage got removed due to the Y2038 limitations
some time ago.That leaves the odd union access around for no reason. Clean it up.
Both changes have been done with coccinelle and a small amount of
manual mopping up"* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
ktime: Get rid of ktime_equal()
ktime: Cleanup ktime_set() usage
ktime: Get rid of the union
clocksource: Use a plain u64 instead of cycle_t -
Pull SMP hotplug notifier removal from Thomas Gleixner:
"This is the final cleanup of the hotplug notifier infrastructure. The
series has been reintgrated in the last two days because there came a
new driver using the old infrastructure via the SCSI tree.Summary:
- convert the last leftover drivers utilizing notifiers
- fixup for a completely broken hotplug user
- prevent setup of already used states
- removal of the notifiers
- treewide cleanup of hotplug state names
- consolidation of state space
There is a sphinx based documentation pending, but that needs review
from the documentation folks"* 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/armada-xp: Consolidate hotplug state space
irqchip/gic: Consolidate hotplug state space
coresight/etm3/4x: Consolidate hotplug state space
cpu/hotplug: Cleanup state names
cpu/hotplug: Remove obsolete cpu hotplug register/unregister functions
staging/lustre/libcfs: Convert to hotplug state machine
scsi/bnx2i: Convert to hotplug state machine
scsi/bnx2fc: Convert to hotplug state machine
cpu/hotplug: Prevent overwriting of callbacks
x86/msr: Remove bogus cleanup from the error path
bus: arm-ccn: Prevent hotplug callback leak
perf/x86/intel/cstate: Prevent hotplug callback leak
ARM/imx/mmcd: Fix broken cpu hotplug handling
scsi: qedi: Convert to hotplug state machine -
Add a new page flag, PageWaiters, to indicate the page waitqueue has
tasks waiting. This can be tested rather than testing waitqueue_active
which requires another cacheline load.This bit is always set when the page has tasks on page_waitqueue(page),
and is set and cleared under the waitqueue lock. It may be set when
there are no tasks on the waitqueue, which will cause a harmless extra
wakeup check that will clears the bit.The generic bit-waitqueue infrastructure is no longer used for pages.
Instead, waitqueues are used directly with a custom key type. The
generic code was not flexible enough to have PageWaiters manipulation
under the waitqueue lock (which simplifies concurrency).This improves the performance of page lock intensive microbenchmarks by
2-3%.Putting two bits in the same word opens the opportunity to remove the
memory barrier between clearing the lock bit and testing the waiters
bit, after some work on the arch primitives (e.g., ensuring memory
operand widths match and cover both bits).Signed-off-by: Nicholas Piggin
Cc: Dave Hansen
Cc: Bob Peterson
Cc: Steven Whitehouse
Cc: Andrew Lutomirski
Cc: Andreas Gruenbacher
Cc: Peter Zijlstra
Cc: Mel Gorman
Signed-off-by: Linus Torvalds -
A page is not added to the swap cache without being swap backed,
so PageSwapBacked mappings can use PG_owner_priv_1 for PageSwapCache.Signed-off-by: Nicholas Piggin
Acked-by: Hugh Dickins
Cc: Dave Hansen
Cc: Bob Peterson
Cc: Steven Whitehouse
Cc: Andrew Lutomirski
Cc: Andreas Gruenbacher
Cc: Peter Zijlstra
Cc: Mel Gorman
Signed-off-by: Linus Torvalds -
No point in going through loops and hoops instead of just comparing the
values.Signed-off-by: Thomas Gleixner
Cc: Peter Zijlstra -
ktime_set(S,N) was required for the timespec storage type and is still
useful for situations where a Seconds and Nanoseconds part of a time value
needs to be converted. For anything where the Seconds argument is 0, this
is pointless and can be replaced with a simple assignment.Signed-off-by: Thomas Gleixner
Cc: Peter Zijlstra -
ktime is a union because the initial implementation stored the time in
scalar nanoseconds on 64 bit machine and in a endianess optimized timespec
variant for 32bit machines. The Y2038 cleanup removed the timespec variant
and switched everything to scalar nanoseconds. The union remained, but
become completely pointless.Get rid of the union and just keep ktime_t as simple typedef of type s64.
The conversion was done with coccinelle and some manual mopping up.
Signed-off-by: Thomas Gleixner
Cc: Peter Zijlstra
25 Dec, 2016
10 commits
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There is no point in having an extra type for extra confusion. u64 is
unambiguous.Conversion was done with the following coccinelle script:
@rem@
@@
-typedef u64 cycle_t;@fix@
typedef cycle_t;
@@
-cycle_t
+u64Signed-off-by: Thomas Gleixner
Cc: Peter Zijlstra
Cc: John Stultz -
The mpic is either the main interrupt controller or is cascaded behind a
GIC. The mpic is single instance and the modes are mutually exclusive, so
there is no reason to have seperate cpu hotplug states.Signed-off-by: Thomas Gleixner
Cc: Peter Zijlstra
Cc: Thomas Petazzoni
Cc: Sebastian Siewior
Cc: Marc Zyngier
Link: http://lkml.kernel.org/r/20161221192112.333161745@linutronix.de
Signed-off-by: Thomas Gleixner -
Even if both drivers are compiled in only one instance can run on a given
system depending on the available GIC version.So having seperate hotplug states for them is pointless.
Signed-off-by: Thomas Gleixner
Cc: Peter Zijlstra
Cc: Marc Zyngier
Cc: Sebastian Siewior
Link: http://lkml.kernel.org/r/20161221192112.252416267@linutronix.de
Signed-off-by: Thomas Gleixner -
Even if both drivers are compiled in only one instance can run on a given
system depending on the available tracer cell.So having seperate hotplug states for them is pointless.
Signed-off-by: Thomas Gleixner
Cc: Peter Zijlstra
Cc: Sebastian Siewior
Cc: Mathieu Poirier
Link: http://lkml.kernel.org/r/20161221192112.162765484@linutronix.de
Signed-off-by: Thomas Gleixner -
hotcpu_notifier(), cpu_notifier(), __hotcpu_notifier(), __cpu_notifier(),
register_hotcpu_notifier(), register_cpu_notifier(),
__register_hotcpu_notifier(), __register_cpu_notifier(),
unregister_hotcpu_notifier(), unregister_cpu_notifier(),
__unregister_hotcpu_notifier(), __unregister_cpu_notifier()are unused now. Remove them and all related code.
Remove also the now pointless cpu notifier error injection mechanism. The
states can be executed step by step and error rollback is the same as cpu
down, so any state transition can be tested w/o requiring the notifier
error injection.Some CPU hotplug states are kept as they are (ab)used for hotplug state
tracking.Signed-off-by: Sebastian Andrzej Siewior
Signed-off-by: Thomas Gleixner
Cc: Peter Zijlstra
Cc: rt@linutronix.de
Link: http://lkml.kernel.org/r/20161221192112.005642358@linutronix.de
Signed-off-by: Thomas Gleixner -
Install the callbacks via the state machine. No functional change.
Signed-off-by: Anna-Maria Gleixner
Signed-off-by: Sebastian Andrzej Siewior
Cc: devel@driverdev.osuosl.org
Cc: Andreas Dilger
Cc: Peter Zijlstra
Cc: Greg Kroah-Hartman
Cc: Oleg Drokin
Cc: rt@linutronix.de
Cc: lustre-devel@lists.lustre.org
Link: http://lkml.kernel.org/r/20161202110027.htzzeervzkoc4muv@linutronix.de
Link: http://lkml.kernel.org/r/20161221192111.922872524@linutronix.de
Signed-off-by: Thomas Gleixner -
Install the callbacks via the state machine. No functional change.
This is the minimal fixup so we can remove the hotplug notifier mess
completely.The real rework of this driver to use work queues is still stuck in
review/testing on the SCSI mailing list.Signed-off-by: Sebastian Andrzej Siewior
Cc: "James E.J. Bottomley"
Cc: linux-scsi@vger.kernel.org
Cc: "Martin K. Petersen"
Cc: Peter Zijlstra
Cc: Chad Dupuis
Cc: QLogic-Storage-Upstream@qlogic.com
Cc: Johannes Thumshirn
Cc: Christoph Hellwig
Link: http://lkml.kernel.org/r/20161221192111.836895753@linutronix.de
Signed-off-by: Thomas Gleixner -
Install the callbacks via the state machine. No functional change.
This is the minimal fixup so we can remove the hotplug notifier mess
completely.The real rework of this driver to use work queues is still stuck in
review/testing on the SCSI mailing list.Signed-off-by: Sebastian Andrzej Siewior
Cc: "James E.J. Bottomley"
Cc: linux-scsi@vger.kernel.org
Cc: "Martin K. Petersen"
Cc: Peter Zijlstra
Cc: Chad Dupuis
Cc: QLogic-Storage-Upstream@qlogic.com
Cc: Johannes Thumshirn
Cc: Christoph Hellwig
Link: http://lkml.kernel.org/r/20161221192111.757309869@linutronix.de
Signed-off-by: Thomas Gleixner -
This was entirely automated, using the script by Al:
PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*'
sed -i -e "s!$PATT!#include !" \
$(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h)to do the replacement at the end of the merge window.
Requested-by: Al Viro
Signed-off-by: Linus Torvalds -
Pull NTB update from Jon Mason:
- NTB bug fixes for removing an unnecessary call to ntb_peer_spad_read,
and correcting a free_irq inconsistency- add Intel SKX support
- change the AMD NTB maintainer, and fix some bugs present there
* tag 'ntb-4.10' of git://github.com/jonmason/ntb:
ntb_transport: Remove unnecessary call to ntb_peer_spad_read
NTB: Fix 'request_irq()' and 'free_irq()' inconsistancy
ntb: fix SKX NTB config space size register offsets
NTB: correct ntb_peer_spad_read for case when callback is not supplied.
MAINTAINERS: Change in maintainer for AMD NTB
ntb_transport: Limit memory windows based on available, scratchpads
NTB: Register and offset values fix for memory window
NTB: add support for hotplug feature
ntb: Adding Skylake Xeon NTB support
24 Dec, 2016
2 commits
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Correct ntb_peer_spad_read for case when callback is not supplied
Signed-off-by: Steve Wahl
Acked-by: Allen Hubbe
Signed-off-by: Jon Mason -
Pull final vfs updates from Al Viro:
"Assorted cleanups and fixes all over the place"* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
sg_write()/bsg_write() is not fit to be called under KERNEL_DS
ufs: fix function declaration for ufs_truncate_blocks
fs: exec: apply CLOEXEC before changing dumpable task flags
seq_file: reset iterator to first record for zero offset
vfs: fix isize/pos/len checks for reflink & dedupe
[iov_iter] fix iterate_all_kinds() on empty iterators
move aio compat to fs/aio.c
reorganize do_make_slave()
clone_private_mount() doesn't need to touch namespace_sem
remove a bogus claim about namespace_sem being held by callers of mnt_alloc_id()
23 Dec, 2016
3 commits
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... and fix the minor buglet in compat io_submit() - native one
kills ioctx as cleanup when put_user() fails. Get rid of
bogus compat_... in !CONFIG_AIO case, while we are at it - they
should simply fail with ENOSYS, same as for native counterparts.Signed-off-by: Al Viro
-
Pull block layer fixes from Jens Axboe:
"Just a set of small fixes that have either been queued up after the
original pull for this merge window, or just missed the original pull
request.- a few bcache fixes/changes from Eric and Kent
- add WRITE_SAME to the command filter whitelist frm Mauricio
- kill an unused struct member from Ritesh
- partition IO alignment fix from Stefan
- nvme sysfs printf fix from Stephen"
* 'for-linus' of git://git.kernel.dk/linux-block:
block: check partition alignment
nvme : Use correct scnprintf in cmb show
block: allow WRITE_SAME commands with the SG_IO ioctl
block: Remove unused member (busy) from struct blk_queue_tag
bcache: partition support: add 16 minors per bcacheN device
bcache: Make gc wakeup sane, remove set_task_state() -
Pull x86 cache allocation interface from Thomas Gleixner:
"This provides support for Intel's Cache Allocation Technology, a cache
partitioning mechanism.The interface is odd, but the hardware interface of that CAT stuff is
odd as well.We tried hard to come up with an abstraction, but that only allows
rather simple partitioning, but no way of sharing and dealing with the
per package nature of this mechanism.In the end we decided to expose the allocation bitmaps directly so all
combinations of the hardware can be utilized.There are two ways of associating a cache partition:
- Task
A task can be added to a resource group. It uses the cache
partition associated to the group.- CPU
All tasks which are not member of a resource group use the group to
which the CPU they are running on is associated with.That allows for simple CPU based partitioning schemes.
The main expected user sare:
- Virtualization so a VM can only trash only the associated part of
the cash w/o disturbing others- Real-Time systems to seperate RT and general workloads.
- Latency sensitive enterprise workloads
- In theory this also can be used to protect against cache side
channel attacks"[ Intel RDT is "Resource Director Technology". The interface really is
rather odd and very specific, which delayed this pull request while I
was thinking about it. The pull request itself came in early during
the merge window, I just delayed it until things had calmed down and I
had more time.But people tell me they'll use this, and the good news is that it is
_so_ specific that it's rather independent of anything else, and no
user is going to depend on the interface since it's pretty rare. So if
push comes to shove, we can just remove the interface and nothing will
break ]* 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (31 commits)
x86/intel_rdt: Implement show_options() for resctrlfs
x86/intel_rdt: Call intel_rdt_sched_in() with preemption disabled
x86/intel_rdt: Update task closid immediately on CPU in rmdir and unmount
x86/intel_rdt: Fix setting of closid when adding CPUs to a group
x86/intel_rdt: Update percpu closid immeditately on CPUs affected by changee
x86/intel_rdt: Reset per cpu closids on unmount
x86/intel_rdt: Select KERNFS when enabling INTEL_RDT_A
x86/intel_rdt: Prevent deadlock against hotplug lock
x86/intel_rdt: Protect info directory from removal
x86/intel_rdt: Add info files to Documentation
x86/intel_rdt: Export the minimum number of set mask bits in sysfs
x86/intel_rdt: Propagate error in rdt_mount() properly
x86/intel_rdt: Add a missing #include
MAINTAINERS: Add maintainer for Intel RDT resource allocation
x86/intel_rdt: Add scheduler hook
x86/intel_rdt: Add schemata file
x86/intel_rdt: Add tasks files
x86/intel_rdt: Add cpus file
x86/intel_rdt: Add mkdir to resctrl file system
x86/intel_rdt: Add "info" files to resctrl file system
...
22 Dec, 2016
2 commits
-
Pull more NFS client updates from Trond Myklebust:
"Highlights include:- further attribute cache improvements to make revalidation more fine
grained- NFSv4 locking improvements
Bugfixes:
- nfs4_fl_prepare_ds must be careful about reporting success in files
layout- pNFS/flexfiles: Instead of marking a device inactive, remove it
from the cache"* tag 'nfs-for-4.10-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
NFSv4: Retry the DELEGRETURN if the embedded GETATTR is rejected with EACCES
NFS: Retry the CLOSE if the embedded GETATTR is rejected with EACCES
NFSv4: Place the GETATTR operation before the CLOSE
NFSv4: Also ask for attributes when downgrading to a READ-only state
NFS: Don't abuse NFS_INO_REVAL_FORCED in nfs_post_op_update_inode_locked()
pNFS: Return RW layouts on OPEN_DOWNGRADE
NFSv4: Add encode/decode of the layoutreturn op in OPEN_DOWNGRADE
NFS: Don't disconnect open-owner on NFS4ERR_BAD_SEQID
NFSv4: ensure __nfs4_find_lock_state returns consistent result.
NFSv4.1: nfs4_fl_prepare_ds must be careful about reporting success.
pNFS/flexfiles: delete deviceid, don't mark inactive
NFS: Clean up nfs_attribute_timeout()
NFS: Remove unused function nfs_revalidate_inode_rcu()
NFS: Fix and clean up the access cache validity checking
NFS: Only look at the change attribute cache state in nfs_weak_revalidate()
NFS: Clean up cache validity checking
NFS: Don't revalidate the file on close if we hold a delegation
NFSv4: Don't discard the attributes returned by asynchronous DELEGRETURN
NFSv4: Update the attribute cache info in update_changeattr -
…l/git/bvanassche/linux
Pull scsi target cleanups from Bart Van Assche:
"The changes here are:- a few small bug fixes for the iSCSI and user space target drivers.
- minimize the target build time by about 30% by rearranging #include
directives- fix the second argument passed to percpu_ida_alloc()
- reduce the number of false positive warnings reported by sparse
These patches pass Wu Fengguang's build bot tests and also the
linux-next tests"* 'scsi-target-for-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/bvanassche/linux:
iscsi-target: Return error if unable to add network portal
target: Fix spelling mistake and unwrap multi-line text
target/iscsi: Fix double free in lio_target_tiqn_addtpg()
target/user: Fix use-after-free of tcmu_cmds if they are expired
target: Minimize #include directives
target/user: Add an #include directive
cxgbit: Add an #include directive
ibmvscsi_tgt: Add two #include directives
sbp-target: Add an #include directive
qla2xxx: Add an #include directive
configfs: Minimize #include directives
usb: gadget: Fix second argument of percpu_ida_alloc()
sbp-target: Fix second argument of percpu_ida_alloc()
target/user: Fix a data type in tcmu_queue_cmd()
target: Use NULL instead of 0 to represent a pointer
21 Dec, 2016
2 commits
-
The macro is to be used similarly as WARN_ON as:
if (WARN_ON_RATELIMIT(condition, state))
do_something();One would expect only 'condition' to affect the 'if', but
WARN_ON_RATELIMIT does internally only:WARN_ON((condition) && __ratelimit(state))
So the 'if' is affected by the ratelimiting state too. Fix this by
returning 'condition' in any case.Note that nobody uses WARN_ON_RATELIMIT yet, so there is nothing to
worry about. But I was about to use it and was a bit surprised.Link: http://lkml.kernel.org/r/20161215093224.23126-1-jslaby@suse.cz
Signed-off-by: Jiri Slaby
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The TPM PCRs are only reset on a hard reboot. In order to validate a
TPM's quote after a soft reboot (eg. kexec -e), the IMA measurement
list of the running kernel must be saved and restored on boot.This patch uses the kexec buffer passing mechanism to pass the
serialized IMA binary_runtime_measurements to the next kernel.Link: http://lkml.kernel.org/r/1480554346-29071-7-git-send-email-zohar@linux.vnet.ibm.com
Signed-off-by: Thiago Jung Bauermann
Signed-off-by: Mimi Zohar
Acked-by: "Eric W. Biederman"
Acked-by: Dmitry Kasatkin
Cc: Andreas Steffen
Cc: Josh Sklar
Cc: Dave Young
Cc: Vivek Goyal
Cc: Baoquan He
Cc: Michael Ellerman
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: Stewart Smith
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
20 Dec, 2016
4 commits
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It can be made static.
Signed-off-by: Trond Myklebust
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Signed-off-by: Trond Myklebust
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Pull quota, fsnotify and ext2 updates from Jan Kara:
"Changes to locking of some quota operations from dedicated quota mutex
to s_umount semaphore, a fsnotify fix and a simple ext2 fix"* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
quota: Fix bogus warning in dquot_disable()
fsnotify: Fix possible use-after-free in inode iteration on umount
ext2: reject inodes with negative size
quota: Remove dqonoff_mutex
ocfs2: Use s_umount for quota recovery protection
quota: Remove dqonoff_mutex from dquot_scan_active()
ocfs2: Protect periodic quota syncing with s_umount semaphore
quota: Use s_umount protection for quota operations
quota: Hold s_umount in exclusive mode when enabling / disabling quotas
fs: Provide function to get superblock with exclusive s_umount -
Pull MFD updates from Lee Jones:
"New Device Support
- Add support for Ricoh RC5T619 PMIC to rn5t618
- Add support for PM8821 PMIC to qcom-pm8xxxNew Functionality:
- Add support for GPIO to lpc_ich
- Add support for GPADC to sun4i
- Add ability for rk808 to shutdownFix-ups:
- Simplify/strip unnecessary code; tps65218, palmas, tps65217
- Device Tree binding updates; tps65218, altera-a10sr
- Provide/export device ID info; tps65218, axp20x-i2c, hi655x-pmic,
fsl-imx25-tsadc, intel_soc_pmic_bxtwc
- Use MFD API instead of of_platform_populate(); tps65218
- Generalise name-space; pm8xxx
- Supply/edit regmap configuration; axp20x, cs47l24-tables, axp20x
- Enable compile testing; max77620, max77686, exynos-lpass,
abx500-core
- Coding style issues; wm8994-core, wm5102-tables
- Supply endian support; syscon
- Remove module support; ab3100-core, ab8500-debugfs, ab8500-gpadc,
abx500-coreBug Fixes:
- Fix ordering issues; wm8994
- Fix dependencies (build-time/run-time); exynos_lpass, sun4i-gpadc
- Fix compiler warnings; sun4i-gpadc
- Fix leaks; mfd-core
- Fix page fault during module unload; tps65217"* tag 'mfd-for-linus-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (49 commits)
mfd: tps65217: Support an interrupt pin as the system wakeup
mfd: tps65217: Make an interrupt handler simpler
mfd: tps65217: Update register interrupt mask bits instead of writing operation
mfd: tps65217: Specify the IRQ name
mfd: tps65217: Fix page fault on unloading modules
mfd: palmas: Remove redundant check in palmas_power_off
mfd: arizona: Disable IRQs during driver remove
mfd: pm8xxx: add support to pm8821
mfd: intel-lpss: Try to enable Memory-Write-Invalidate
mfd: rn5t618: Add Ricoh RC5T619 PMIC support
mfd: axp20x: Add address extension registers for AXP806 regmap
mfd: intel_soc_pmic_bxtwc: Fix a typo in MODULE_DEVICE_TABLE()
mfd: core: Fix device reference leak in mfd_clone_cell
mfd: bcm590xx: Simplify a test
mfd: sun4i-gpadc: Select regmap-irq
mfd: abx500-core: drop unused MODULE_ tags from non-modular code
mfd: ab8500: make sysctrl explicitly non-modular
mfd: ab8500-gpadc: Make it explicitly non-modular
mfd: ab8500-debugfs: Make it explicitly non-modular
mfd: ab8500-core: Make it explicitly non-modular
...
19 Dec, 2016
4 commits
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…/linux-platform-drivers-x86
Pull more x86 platform driver updates from Darren Hart:
"Move and add registration for the mlx-platform driver. Introduce
button and lid drivers for the surface3 (different from the
surface3-pro). Add BXT PMIC TMU support. Add Y700 to existing
ideapad-laptop quirk.Summary:
ideapad-laptop:
- Add Y700 15-ACZ to no_hw_rfkill DMI listsurface3_button:
- Introduce button support for the Surface 3surface3-wmi:
- Add custom surface3 platform device for controlling LID
- Balance locking on error pathmlx-platform:
- Add mlxcpld-hotplug driver registration
- Fix semicolon.cocci warnings
- Move module from arch/x86platform/x86:
- Add Whiskey Cove PMIC TMU support"* tag 'platform-drivers-x86-v4.10-2' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86:
platform/x86: surface3-wmi: Balance locking on error path
platform/x86: Add Whiskey Cove PMIC TMU support
platform/x86: ideapad-laptop: Add Y700 15-ACZ to no_hw_rfkill DMI list
platform/x86: Introduce button support for the Surface 3
platform/x86: Add custom surface3 platform device for controlling LID
platform/x86: mlx-platform: Add mlxcpld-hotplug driver registration
platform/x86: mlx-platform: Fix semicolon.cocci warnings
platform/x86: mlx-platform: Move module from arch/x86 -
This adds TMU (Time Management Unit) support for Intel BXT platform.
It enables the alarm wake-up functionality in the TMU unit of Whiskey Cove
PMIC.Signed-off-by: Nilesh Bacchewar
Reviewed-by: Mika Westerberg
[andy: resolve merge conflict in Kconfig]
Signed-off-by: Andy Shevchenko -
Pull x86 fixes and cleanups from Thomas Gleixner:
"This set of updates contains:- Robustification for the logical package managment. Cures the AMD
and virtualization issues.- Put the correct start_cpu() return address on the stack of the idle
task.- Fixups for the fallout of the nodeid cpuid persistent mapping
modifciations- Move the x86/MPX specific mm_struct member to the arch specific
mm_context where it belongs- Cleanups for C89 struct initializers and useless function
arguments"* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/floppy: Use designated initializers
x86/mpx: Move bd_addr to mm_context_t
x86/mm: Drop unused argument 'removed' from sync_global_pgds()
ACPI/NUMA: Do not map pxm to node when NUMA is turned off
x86/acpi: Use proper macro for invalid node
x86/smpboot: Prevent false positive out of bounds cpumask access warning
x86/boot/64: Push correct start_cpu() return address
x86/boot/64: Use 'push' instead of 'call' in start_cpu()
x86/smpboot: Make logical package management more robust -
Pull SMP hotplug fixes from Thomas Gleixner:
"Two fixlets for cpu hotplug:- Fix a subtle ordering problem with the dummy timer. This happened
to work before the conversion by chance due to initcall ordering.- Fix the function comment for __cpuhp_setup_state()"
* 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
cpu/hotplug: Clarify description of __cpuhp_setup_state() return value
clocksource/dummy_timer: Move hotplug callback after the real timers
18 Dec, 2016
1 commit
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Pull networking fixes and cleanups from David Miller:
1) Revert bogus nla_ok() change, from Alexey Dobriyan.
2) Various bpf validator fixes from Daniel Borkmann.
3) Add some necessary SET_NETDEV_DEV() calls to hsis_femac and hip04
drivers, from Dongpo Li.4) Several ethtool ksettings conversions from Philippe Reynes.
5) Fix bugs in inet port management wrt. soreuseport, from Tom Herbert.
6) XDP support for virtio_net, from John Fastabend.
7) Fix NAT handling within a vrf, from David Ahern.
8) Endianness fixes in dpaa_eth driver, from Claudiu Manoil
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (63 commits)
net: mv643xx_eth: fix build failure
isdn: Constify some function parameters
mlxsw: spectrum: Mark split ports as such
cgroup: Fix CGROUP_BPF config
qed: fix old-style function definition
net: ipv6: check route protocol when deleting routes
r6040: move spinlock in r6040_close as SOFTIRQ-unsafe lock order detected
irda: w83977af_ir: cleanup an indent issue
net: sfc: use new api ethtool_{get|set}_link_ksettings
net: davicom: dm9000: use new api ethtool_{get|set}_link_ksettings
net: cirrus: ep93xx: use new api ethtool_{get|set}_link_ksettings
net: chelsio: cxgb3: use new api ethtool_{get|set}_link_ksettings
net: chelsio: cxgb2: use new api ethtool_{get|set}_link_ksettings
bpf: fix mark_reg_unknown_value for spilled regs on map value marking
bpf: fix overflow in prog accounting
bpf: dynamically allocate digest scratch buffer
gtp: Fix initialization of Flags octet in GTPv1 header
gtp: gtp_check_src_ms_ipv4() always return success
net/x25: use designated initializers
isdn: use designated initializers
...