__NR_sys_epoll_create and friends are alpha-specific
while __NR_epoll_create is a generic name for other
arches.
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Signed-off-by: Matt Turner <mattst88@gmail.com>
The arch uses a verbatim copy of the asm-generic version and does not
add any own implemntations to the header, so use asm-generic/fb.h
instead of duplicating code.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Matt Turner <mattst88@gmail.com>
Pull alpha update from Matt Turner:
"A few fixes and wires up some additional syscalls."
[ Some of this is technically not really rc7 material, but it's alpha,
and it all looks safe anyway. Matt explains: "My alpha has been
offline, hence the very late-in-cycle pull request" and hasn't caused
problems before, so he gets to slide. - Linus ]
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha:
alpha: uapi: Add support for __SANE_USERSPACE_TYPES__
alpha: Define ioremap_wc
alpha: Fix section mismatches
alpha: support R_ALPHA_REFLONG relocations for module loading
alpha: Fix typo in ev6-copy_user.S
alpha: Package string routines together
alpha: Update for new syscalls
alpha: Fix build error without CONFIG_VGA_HOSE.
This fixes compiler errors in perf such as:
tests/attr.c: In function 'store_event':
tests/attr.c:66:27: error: format '%llu' expects argument of type 'long long unsigned int', but argument 6 has type '__u64 {aka long unsigned int}' [-Werror=format=]
snprintf(path, PATH_MAX, "%s/event-%d-%llu-%d", dir,
^
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Tested-by: Michael Cree <mcree@orcon.net.nz>
Cc: stable@vger.kernel.org
Signed-off-by: Matt Turner <mattst88@gmail.com>
Commit 3cc2dac5be ("drivers/video/fbdev/atyfb: Replace MTRR UC hole
with strong UC") introduces calls to ioremap_wc and ioremap_uc. This
causes build failures with alpha:allmodconfig. Map the missing functions
to ioremap_nocache.
Fixes: 3cc2dac5be ("drivers/video/fbdev/atyfb:
Replace MTRR UC hole with strong UC")
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Luis R. Rodriguez <mcgrof@suse.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Matt Turner <mattst88@gmail.com>
Since commit 71810db27c (modversions: treat symbol CRCs
as 32 bit quantities) R_ALPHA_REFLONG relocations can be required
to load modules. This implements it.
Tested-by: Bob Tracy <rct@gherkin.frus.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Michael Cree <mcree@orcon.net.nz>
Signed-off-by: Matt Turner <mattst88@gmail.com>
Patch 8525023121 introduced a typo.
That said, the identity AND insns added by that patch are more
clearly written as MOV. At the same time, re-schedule the ev6
version so that the first dispatch can execute in parallel.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Matt Turner <mattst88@gmail.com>
There are direct branches between {str*cpy,str*cat} and stx*cpy.
Ensure the branches are within range by merging these objects.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Matt Turner <mattst88@gmail.com>
Pull cgroup fix from Tejun Heo:
"A late but obvious fix for cgroup.
I broke the 'cpuset.memory_pressure' file a long time ago (v4.4) by
accidentally deleting its file index, which made it a duplicate of the
'cpuset.memory_migrate' file. Spotted and fixed by Waiman"
* 'for-4.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cpuset: Fix incorrect memory_pressure control file mapping
Pull libata fixes from Tejun Heo:
"Late fixes for libata. There's a minor platform driver fix but the
important one is READ LOG PAGE.
This is a new ATA command which is used to test some optional features
but it broke probing of some devices - they locked up instead of
failing the unknown command.
Christoph tried blacklisting, but, after finding out there are
multiple devices which fail this way, backed off to testing feature
bit in IDENTIFY data first, which is a bit lossy (we can miss features
on some devices) but should be a lot safer"
* 'for-4.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
Revert "libata: quirk read log on no-name M.2 SSD"
libata: check for trusted computing in IDENTIFY DEVICE data
libata: quirk read log on no-name M.2 SSD
sata: ahci-da850: Fix some error handling paths in 'ahci_da850_probe()'
This reverts commit aac2fea94f.
It turns out that that patch was complete and utter garbage, and broke
KVM, resulting in odd oopses.
Quoting Andrea Arcangeli:
"The aforementioned commit has 3 bugs.
1) mmu_notifier_invalidate_range cannot be used in replacement of
mmu_notifier_invalidate_range_start/end.
For KVM mmu_notifier_invalidate_range is a noop and rightfully so.
A MMU notifier implementation has to implement either
->invalidate_range method or the invalidate_range_start/end
methods, not both. And if you implement invalidate_range_start/end
like KVM is forced to do, calling mmu_notifier_invalidate_range in
common code is a noop for KVM.
For those MMU notifiers that can get away only implementing
->invalidate_range, the ->invalidate_range is implicitly called by
mmu_notifier_invalidate_range_end(). And only those secondary MMUs
that share the same pagetable with the primary MMU (like AMD
iommuv2) can get away only implementing ->invalidate_range.
So all cases (THP on/off) are broken right now.
To fix this is enough to replace mmu_notifier_invalidate_range with
mmu_notifier_invalidate_range_start;mmu_notifier_invalidate_range_end.
Either that or call multiple mmu_notifier_invalidate_page like
before.
2) address + (1UL << compound_order(page) is buggy, it should be
PAGE_SIZE << compound_order(page), it's bytes not pages, 2M not
512.
3) The whole invalidate_range thing was an attempt to call a single
invalidate while walking multiple 4k ptes that maps the same THP
(after a pmd virtual split without physical compound page THP
split).
It's unclear if the rmap_walk will always provide an address that
is 2M aligned as parameter to try_to_unmap_one, in presence of THP.
I think it needs also an address &= (PAGE_SIZE <<
compound_order(page)) - 1 to be safe"
In general, we should stop making excuses for horrible MMU notifier
users. It's much more important that the core VM is sane and safe, than
letting MMU notifiers sleep.
So if some MMU notifier is sleeping under a spinlock, we need to fix the
notifier, not try to make excuses for that garbage in the core VM.
Reported-and-tested-by: Bernhard Held <berny156@gmx.de>
Reported-and-tested-by: Adam Borowski <kilobyte@angband.pl>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Wanpeng Li <kernellwp@gmail.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Nadav Amit <nadav.amit@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Jérôme Glisse <jglisse@redhat.com>
Cc: axie <axie@amd.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This reverts commit 35f0b6a779.
We now conditionalize issuing of READ LOG PAGE on the TRUSTED
COMPUTING SUPPORTED bit in the identity data and this shouldn't be
necessary.
Signed-off-by: Tejun Heo <tj@kernel.org>
ATA-8 and later mirrors the TRUSTED COMPUTING SUPPORTED bit in word 48 of
the IDENTIFY DEVICE data. Check this before issuing a READ LOG PAGE
command to avoid issues with buggy devices. The only downside is that
we can't support Security Send / Receive for a device with an older
revision due to the conflicting use of this field in earlier
specifications.
tj: The reason we need this is because some devices which don't
support READ LOG PAGE lock up after getting issued that command.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Commit 3510ca20ec ("Minor page waitqueue cleanups") made the page
queue code always add new waiters to the back of the queue, which helps
upcoming patches to batch the wakeups for some horrid loads where the
wait queues grow to thousands of entries.
However, I forgot about the nasrt add_page_wait_queue() special case
code that is only used by the cachefiles code. That one still continued
to add the new wait queue entries at the beginning of the list.
Fix it, because any sane batched wakeup will require that we don't
suddenly start getting new entries at the beginning of the list that we
already handled in a previous batch.
[ The current code always does the whole list while holding the lock, so
wait queue ordering doesn't matter for correctness, but even then it's
better to add later entries at the end from a fairness standpoint ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When !NUMA, cpumask_of_node(@node) equals cpu_online_mask regardless of
@node. The assumption seems that if !NUMA, there shouldn't be more than
one node and thus reporting cpu_online_mask regardless of @node is
correct. However, that assumption was broken years ago to support
DISCONTIGMEM and whether a system has multiple nodes or not is
separately controlled by NEED_MULTIPLE_NODES.
This means that, on a system with !NUMA && NEED_MULTIPLE_NODES,
cpumask_of_node() will report cpu_online_mask for all possible nodes,
indicating that the CPUs are associated with multiple nodes which is an
impossible configuration.
This bug has been around forever but doesn't look like it has caused any
noticeable symptoms. However, it triggers a WARN recently added to
workqueue to verify NUMA affinity configuration.
Fix it by reporting empty cpumask on non-zero nodes if !NUMA.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-and-tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Recent commit a8ec3ee861 "arc: Mask individual IRQ lines during core
INTC init" breaks interrupt handling on ARCv2 SMP systems.
That commit masked all interrupts at onset, as some controllers on some
boards (customer as well as internal), would assert interrutps early
before any handlers were installed. For SMP systems, the masking was
done at each cpu's core-intc. Later, when the IRQ was actually
requested, it was unmasked, but only on the requesting cpu.
For "common" interrupts, which were wired up from the 2nd level IDU
intc, this was as issue as they needed to be enabled on ALL the cpus
(given that IDU IRQs are by default served Round Robin across cpus)
So fix that by NOT masking "common" interrupts at core-intc, but instead
at the 2nd level IDU intc (latter already being done in idu_of_init())
Fixes: a8ec3ee861 ("arc: Mask individual IRQ lines during core INTC init")
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
[vgupta: reworked changelog, removed the extraneous idu_irq_mask_raw()]
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 464d62421c ("select: switch compat_{get,put}_fd_set() to
compat_{get,put}_bitmap()") changed the calculation on how many bytes
need to be zeroed when userspace handed over a NULL pointer for a fdset
array in the select syscall.
The calculation was changed in compat_get_fd_set() wrongly from
memset(fdset, 0, ((nr + 1) & ~1)*sizeof(compat_ulong_t));
to
memset(fdset, 0, ALIGN(nr, BITS_PER_LONG));
The ALIGN(nr, BITS_PER_LONG) calculates the number of _bits_ which need
to be zeroed in the target fdset array (rounded up to the next full bits
for an unsigned long).
But the memset() call expects the number of _bytes_ to be zeroed.
This leads to clearing more memory than wanted (on the stack area or
even at kmalloc()ed memory areas) and to random kernel crashes as we
have seen them on the parisc platform.
The correct change should have been
memset(fdset, 0, (ALIGN(nr, BITS_PER_LONG) / BITS_PER_LONG) * BYTES_PER_LONG);
which is the same as can be archieved with a call to
zero_fd_set(nr, fdset).
Fixes: 464d62421c ("select: switch compat_{get,put}_fd_set() to compat_{get,put}_bitmap()"
Acked-by:: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-----BEGIN PGP SIGNATURE-----
iQIcBAABAgAGBQJZocn1AAoJEOiN4VijXeFPbfEP/3pMATh1SuY86/y19GYR0yT3
2YmaasugtrqIMzQEabLDI6rg6bSudWvGk87R6Wr2dsDpEPSEM948OVAOjlnhZh2G
06bwVEcNA7dE884iMBaZ43VAXENTaCG2macqePdXa6lLq5snyFhCqsoDLLDJOxN6
HeSvyEb3yreziTFBPAfB8TNhFYPTXXaGmMviiZljIEJfeRW832FlIRk/rfDVU8L6
wVGx2HETyFG34NP2eGsA8z1PFqc5PffQFlk4+xJENjvp24Kwcaeu28k5/ph6nlsH
x9+y5uSyiSIsrdtf7TH3vUSDGZz7byWn3C00s7IytEYPeqSCq69sM+qCDuufoVJL
D2B14O2L+8xWBFPiC7fZMVzq6hMYkP14ZjtuhecucmHc6p1TWFiLD3oP7jNwS2lD
WYAL0VeP1BwnmX0IpbZOR0J5AffnZXlIjmZFcA9HtGc3StBOCCE0AF05L4Rqbyo3
Up2tDug6VUcEhJOv61lPkrLTLuKdH5M8F9uXhNuUlFWV2yGEKclvvgKkcFZdLgYp
zmYva6g/ttj63UWCuXXo5hHXYGEv2W/hozmoOtdy0HB/jF3cPLCUABmBTZoQ1P7j
vjcYmcqpr1HOjVhMnh9BPMyhz45pD+BBHyJYXZCPIrUzMrXK320X9ewvfqVNOD2y
HeadOK8rTklyvi49ppPP
=cE+t
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming
Pull c6x tweaks from Mark Salter.
* tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming:
c6x: Convert to using %pOF instead of full_name
c6x: defconfig: Cleanup from old Kconfig options
Ido reported that reading the log page on his systems fails,
so quirk it as it won't support ZBC or security protocols.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Ido Schimmel <idosch@mellanox.com>
Tested-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Another fix, this time in common IOMMU sysfs code
- In the conversion from the old iommu sysfs-code to the
iommu_device_register interface, I missed to update the
release path for the struct device associated with an IOMMU.
It freed the 'struct device', which was a pointer before, but
is now embedded in another struct. Freeing from the middle of
allocated memory had all kinds of nasty side effects when an
IOMMU was unplugged. Unfortunatly nobody unplugged and IOMMU
until now, so this was not discovered earlier. The fix is to
make the 'struct device' a pointer again.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=/lXQ
-----END PGP SIGNATURE-----
Merge tag 'iommu-fixes-v4.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU fix from Joerg Roedel:
"Another fix, this time in common IOMMU sysfs code.
In the conversion from the old iommu sysfs-code to the
iommu_device_register interface, I missed to update the release path
for the struct device associated with an IOMMU. It freed the 'struct
device', which was a pointer before, but is now embedded in another
struct.
Freeing from the middle of allocated memory had all kinds of nasty
side effects when an IOMMU was unplugged. Unfortunatly nobody
unplugged and IOMMU until now, so this was not discovered earlier. The
fix is to make the 'struct device' a pointer again"
* tag 'iommu-fixes-v4.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu: Fix wrong freeing of iommu_device->dev
Here is a single misc driver fix for 4.13-rc7. It resolves a reported
problem in the Android binder driver due to previous patches in 4.13-rc.
It's been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCWaJyTQ8cZ3JlZ0Brcm9h
aC5jb20ACgkQMUfUDdst+yk3GgCgi/suT2Mqfun8Ohmz9i4fMwjJ7UwAn2s3XxeH
3b+zwqeZD1+zB/w6hZ2v
=9B01
-----END PGP SIGNATURE-----
Merge tag 'char-misc-4.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc fix from Greg KH:
"Here is a single misc driver fix for 4.13-rc7. It resolves a reported
problem in the Android binder driver due to previous patches in
4.13-rc.
It's been in linux-next with no reported issues"
* tag 'char-misc-4.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
ANDROID: binder: fix proc->tsk check.
Here are few small staging driver fixes, and some more IIO driver fixes
for 4.13-rc7. Nothing major, just resolutions for some reported
problems.
All of these have been in linux-next with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCWaJy4A8cZ3JlZ0Brcm9h
aC5jb20ACgkQMUfUDdst+ynWcACgxpL4f0LeykFayPprtrciey5OOGoAnAhfG7Lq
LCuaIj8AtUVfwoWXVwBA
=RSsO
-----END PGP SIGNATURE-----
Merge tag 'staging-4.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging/iio fixes from Greg KH:
"Here are few small staging driver fixes, and some more IIO driver
fixes for 4.13-rc7. Nothing major, just resolutions for some reported
problems.
All of these have been in linux-next with no reported problems"
* tag 'staging-4.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
iio: magnetometer: st_magn: remove ihl property for LSM303AGR
iio: magnetometer: st_magn: fix status register address for LSM303AGR
iio: hid-sensor-trigger: Fix the race with user space powering up sensors
iio: trigger: stm32-timer: fix get trigger mode
iio: imu: adis16480: Fix acceleration scale factor for adis16480
PATCH] iio: Fix some documentation warnings
staging: rtl8188eu: add RNX-N150NUB support
Revert "staging: fsl-mc: be consistent when checking strcmp() return"
iio: adc: stm32: fix common clock rate
iio: adc: ina219: Avoid underflow for sleeping time
iio: trigger: stm32-timer: add enable attribute
iio: trigger: stm32-timer: fix get/set down count direction
iio: trigger: stm32-timer: fix write_raw return value
iio: trigger: stm32-timer: fix quadrature mode get routine
iio: bmp280: properly initialize device for humidity reading
transport, improperly bringing down the link if SPADs are corrupted, and
an out-of-order issue regarding link negotiation and data passing.
-----BEGIN PGP SIGNATURE-----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=qmzC
-----END PGP SIGNATURE-----
Merge tag 'ntb-4.13-bugfixes' of git://github.com/jonmason/ntb
Pull NTB fixes from Jon Mason:
"NTB bug fixes to address an incorrect ntb_mw_count reference in the
NTB transport, improperly bringing down the link if SPADs are
corrupted, and an out-of-order issue regarding link negotiation and
data passing"
* tag 'ntb-4.13-bugfixes' of git://github.com/jonmason/ntb:
ntb: ntb_test: ensure the link is up before trying to configure the mws
ntb: transport shouldn't disable link due to bogus values in SPADs
ntb: use correct mw_count function in ntb_tool and ntb_transport
The "lock_page_killable()" function waits for exclusive access to the
page lock bit using the WQ_FLAG_EXCLUSIVE bit in the waitqueue entry
set.
That means that if it gets woken up, other waiters may have been
skipped.
That, in turn, means that if it sees the page being unlocked, it *must*
take that lock and return success, even if a lethal signal is also
pending.
So instead of checking for lethal signals first, we need to check for
them after we've checked the actual bit that we were waiting for. Even
if that might then delay the killing of the process.
This matches the order of the old "wait_on_bit_lock()" infrastructure
that the page locking used to use (and is still used in a few other
areas).
Note that if we still return an error after having unsuccessfully tried
to acquire the page lock, that is ok: that means that some other thread
was able to get ahead of us and lock the page, and when that other
thread then unlocks the page, the wakeup event will be repeated. So any
other pending waiters will now get properly woken up.
Fixes: 6290602709 ("mm: add PageWaiters indicating tasks are waiting for a page bit")
Cc: Nick Piggin <npiggin@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Jan Kara <jack@suse.cz>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tim Chen and Kan Liang have been battling a customer load that shows
extremely long page wakeup lists. The cause seems to be constant NUMA
migration of a hot page that is shared across a lot of threads, but the
actual root cause for the exact behavior has not been found.
Tim has a patch that batches the wait list traversal at wakeup time, so
that we at least don't get long uninterruptible cases where we traverse
and wake up thousands of processes and get nasty latency spikes. That
is likely 4.14 material, but we're still discussing the page waitqueue
specific parts of it.
In the meantime, I've tried to look at making the page wait queues less
expensive, and failing miserably. If you have thousands of threads
waiting for the same page, it will be painful. We'll need to try to
figure out the NUMA balancing issue some day, in addition to avoiding
the excessive spinlock hold times.
That said, having tried to rewrite the page wait queues, I can at least
fix up some of the braindamage in the current situation. In particular:
(a) we don't want to continue walking the page wait list if the bit
we're waiting for already got set again (which seems to be one of
the patterns of the bad load). That makes no progress and just
causes pointless cache pollution chasing the pointers.
(b) we don't want to put the non-locking waiters always on the front of
the queue, and the locking waiters always on the back. Not only is
that unfair, it means that we wake up thousands of reading threads
that will just end up being blocked by the writer later anyway.
Also add a comment about the layout of 'struct wait_page_key' - there is
an external user of it in the cachefiles code that means that it has to
match the layout of 'struct wait_bit_key' in the two first members. It
so happens to match, because 'struct page *' and 'unsigned long *' end
up having the same values simply because the page flags are the first
member in struct page.
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Christopher Lameter <cl@linux.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
We have a MAX_LFS_FILESIZE macro that is meant to be filled in by
filesystems (and other IO targets) that know they are 64-bit clean and
don't have any 32-bit limits in their IO path.
It turns out that our 32-bit value for that limit was bogus. On 32-bit,
the VM layer is limited by the page cache to only 32-bit index values,
but our logic for that was confusing and actually wrong. We used to
define that value to
(((loff_t)PAGE_SIZE << (BITS_PER_LONG-1))-1)
which is actually odd in several ways: it limits the index to 31 bits,
and then it limits files so that they can't have data in that last byte
of a page that has the highest 31-bit index (ie page index 0x7fffffff).
Neither of those limitations make sense. The index is actually the full
32 bit unsigned value, and we can use that whole full page. So the
maximum size of the file would logically be "PAGE_SIZE << BITS_PER_LONG".
However, we do wan tto avoid the maximum index, because we have code
that iterates over the page indexes, and we don't want that code to
overflow. So the maximum size of a file on a 32-bit host should
actually be one page less than the full 32-bit index.
So the actual limit is ULONG_MAX << PAGE_SHIFT. That means that we will
not actually be using the page of that last index (ULONG_MAX), but we
can grow a file up to that limit.
The wrong value of MAX_LFS_FILESIZE actually caused problems for Doug
Nazar, who was still using a 32-bit host, but with a 9.7TB 2 x RAID5
volume. It turns out that our old MAX_LFS_FILESIZE was 8TiB (well, one
byte less), but the actual true VM limit is one page less than 16TiB.
This was invisible until commit c2a9737f45 ("vfs,mm: fix a dead loop
in truncate_inode_pages_range()"), which started applying that
MAX_LFS_FILESIZE limit to block devices too.
NOTE! On 64-bit, the page index isn't a limiter at all, and the limit is
actually just the offset type itself (loff_t), which is signed. But for
clarity, on 64-bit, just use the maximum signed value, and don't make
people have to count the number of 'f' characters in the hex constant.
So just use LLONG_MAX for the 64-bit case. That was what the value had
been before too, just written out as a hex constant.
Fixes: c2a9737f45 ("vfs,mm: fix a dead loop in truncate_inode_pages_range()")
Reported-and-tested-by: Doug Nazar <nazard@nazar.ca>
Cc: Andreas Dilger <adilger@dilger.ca>
Cc: Mark Fasheh <mfasheh@versity.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Dave Kleikamp <shaggy@kernel.org>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull input fixes from Dmitry Torokhov:
- a tweak to the IBM Trackpoint driver that helps recognizing
trackpoints on never Lenovo Carbons
- a fix to the ALPS driver solving scroll issues on some Dells
- yet another ACPI ID has been added to Elan I2C toucpad driver
- quieted diagnostic message in soc_button_array driver
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: ALPS - fix two-finger scroll breakage in right side on ALPS touchpad
Input: soc_button_array - silence -ENOENT error on Dell XPS13 9365
Input: trackpoint - add new trackpoint firmware ID
Input: elan_i2c - add ELAN0602 ACPI ID to support Lenovo Yoga310
Pull x86 fixes from Ingo Molnar:
"Two fixes: one for an ldt_struct handling bug and a cherry-picked
objtool fix"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Fix use-after-free of ldt_struct
objtool: Fix '-mtune=atom' decoding support in objtool 2.0
Pull timer fix from Ingo Molnar:
"Fix a timer granularity handling race+bug, which would manifest itself
by spuriously increasing timeouts of some timers (from 1 jiffy to ~500
jiffies in the worst case measured) in certain nohz states"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timers: Fix excessive granularity of new timers after a nohz idle
Pull perf fix from Ingo Molnar:
"A single fix to not allow nonsensical event groups that result in
kernel warnings"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/core: Fix group {cpu,task} validation
Merge misc fixes from Andrew Morton:
"6 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mm/memblock.c: reversed logic in memblock_discard()
fork: fix incorrect fput of ->exe_file causing use-after-free
mm/madvise.c: fix freeing of locked page with MADV_FREE
dax: fix deadlock due to misaligned PMD faults
mm, shmem: fix handling /sys/kernel/mm/transparent_hugepage/shmem_enabled
PM/hibernate: touch NMI watchdog when creating snapshot
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)
iQEcBAABAgAGBQJZoEmaAAoJEL/70l94x66DmnMH/17uzxBe3UksLBKWC5grWhRq
GVlHVI+XH7jPub1hfqKkj09nnJ0OJAiO87vX9A/CCobtxLDk0UB02U2qv+jbFbmN
mSkAovY8Rn4YR73SqU+XTYajnnwmYsEiPuHVUDbMaKY3yBLW/BYtSqCuAHSm3NrS
UQO8DvQAY7+W7/gA9QY7aaK/sc8N6oAwE4DHsxTYKR70Eax4SjjMLWYQY7oSutTx
U8XpguF5CwP8iYbsF++WkNYxe85piheWIpUIKg+3pYxKgpDNBST8ROmxmuvSdAh6
1hkXy2qxpw+YYM6JkHRb7kBpuUAGqzYNrEF/c2Wfor+gufsyoq8LQSq5pB+d/5I=
=M40T
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull Paolo Bonzini:
"Bugfixes for x86, PPC and s390"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: PPC: Book3S: Fix race and leak in kvm_vm_ioctl_create_spapr_tce()
KVM, pkeys: do not use PKRU value in vcpu->arch.guest_fpu.state
KVM: x86: simplify handling of PKRU
KVM: x86: block guest protection keys unless the host has them enabled
KVM: PPC: Book3S HV: Add missing barriers to XIVE code and document them
KVM: PPC: Book3S HV: Workaround POWER9 DD1.0 bug causing IPB bit loss
KVM: PPC: Book3S HV: Use msgsync with hypervisor doorbells on POWER9
KVM: s390: sthyi: fix specification exception detection
KVM: s390: sthyi: fix sthyi inline assembly
Fixes two obvious bugs in virtio pci.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
-----BEGIN PGP SIGNATURE-----
iQEcBAABAgAGBQJZoG+uAAoJECgfDbjSjVRpvAMIAIoONNPd53SPKDVuyU1ycz7H
hRVJ9dgVqsCyJV7UQNXznTkk1Te+todM3eBOnnWGxBUPyyjjn+nRJY8ObzvPZNtr
GZjBHhuCeWAi1HPcGk3VKFCXB9yzVc7x91YoSZRWRveB1hOoqWCNccuXMlOf1mLC
AAYMdBR7JH9CTA5v73z0n4XmfDPFja9g5qhv3JxYypzS3IrWglsVV8RFFG94zJys
qsg3Ys6SdYnC4whdtT0sdj6zcVV3STqLtutUcWzpBJiPwL+TYprOtGxhjhjG/YdP
vurTYmMk1FZyTlxflfzH0yIRQVZyxARcPGrchhvFv9eE4qN0y4E72FkN8UyyKpU=
=qTWW
-----END PGP SIGNATURE-----
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio fixes from Michael Tsirkin:
"Fixes two obvious bugs in virtio pci"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
virtio_pci: fix cpu affinity support
virtio_blk: fix incorrect message when disk is resized
Just one fix, to add a barrier in the switch_mm() code to make sure the mm
cpumask update is ordered vs the MMU starting to load translations. As far as we
know no one's actually hit the bug, but that's just luck.
Thanks to:
Benjamin Herrenschmidt, Nicholas Piggin.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=IClj
-----END PGP SIGNATURE-----
Merge tag 'powerpc-4.13-8' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fix from Michael Ellerman:
"Just one fix, to add a barrier in the switch_mm() code to make sure
the mm cpumask update is ordered vs the MMU starting to load
translations. As far as we know no one's actually hit the bug, but
that's just luck.
Thanks to Benjamin Herrenschmidt, Nicholas Piggin"
* tag 'powerpc-4.13-8' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/mm: Ensure cpumask update is ordered
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=MlGX
-----END PGP SIGNATURE-----
Merge tag 'cifs-fixes-for-4.13-rc6-and-stable' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"Some bug fixes for stable for cifs"
* tag 'cifs-fixes-for-4.13-rc6-and-stable' of git://git.samba.org/sfrench/cifs-2.6:
cifs: return ENAMETOOLONG for overlong names in cifs_open()/cifs_lookup()
cifs: Fix df output for users with quota limits
Two fixes - one for a 4.13 regression, and the other for an older one:
* Atmel NAND: since we started utilizing ONFI timings, we found that we
were being too restrict at rejecting them, partly due to discrepancies
in ONFI 4.0 and earlier versions. Relax the restriction to keep these
platforms booting. This is a 4.13-rc1 regression.
* nandsim: repeated probe/removal may not work after a failed init,
because we didn't free up our debugfs files properly on the failure
path. This has been around since 3.8, but it's nice to get this fixed
now in a nice easy patch that can target -stable, since there's
already refactoring work (that also fixes the issue) targeted for the
next merge window
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=yDqO
-----END PGP SIGNATURE-----
Merge tag 'for-linus-20170825' of git://git.infradead.org/linux-mtd
Pull MTD fixes from Brian Norris:
"Two fixes - one for a 4.13 regression, and the other for an older one:
- Atmel NAND: since we started utilizing ONFI timings, we found that
we were being too restrict at rejecting them, partly due to
discrepancies in ONFI 4.0 and earlier versions. Relax the
restriction to keep these platforms booting. This is a 4.13-rc1
regression.
- nandsim: repeated probe/removal may not work after a failed init,
because we didn't free up our debugfs files properly on the failure
path. This has been around since 3.8, but it's nice to get this
fixed now in a nice easy patch that can target -stable, since
there's already refactoring work (that also fixes the issue)
targeted for the next merge window"
* tag 'for-linus-20170825' of git://git.infradead.org/linux-mtd:
mtd: nand: atmel: Relax tADL_min constraint
mtd: nandsim: remove debugfs entries in error path
Pull block fixes from Jens Axboe:
"A small batch of fixes that should be included for the 4.13 release.
This contains:
- Revert of the 4k loop blocksize support. Even with a recent batch
of 4 fixes, we're still not really happy with it. Rather than be
stuck with an API issue, let's revert it and get it right for 4.14.
- Trivial patch from Bart, adding a few flags to the blk-mq debugfs
exports that were added in this release, but not to the debugfs
parts.
- Regression fix for bsg, fixing a potential kernel panic. From
Benjamin.
- Tweak for the blk throttling, improving how we account discards.
From Shaohua"
* 'for-linus' of git://git.kernel.dk/linux-block:
blk-mq-debugfs: Add names for recently added flags
bsg-lib: fix kernel panic resulting from missing allocation of reply-buffer
Revert "loop: support 4k physical blocksize"
blk-throttle: cap discard request size
Pull i2c fixes from Wolfram Sang:
"I2C has some bugfixes for you: mainly Jarkko fixed up a few things in
the designware driver regarding the new slave mode. But Ulf also fixed
a long-standing and now agreed suspend problem. Plus, some simple
stuff which nonetheless needs fixing"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: designware: Fix runtime PM for I2C slave mode
i2c: designware: Remove needless pm_runtime_put_noidle() call
i2c: aspeed: fixed potential null pointer dereference
i2c: simtec: use release_mem_region instead of release_resource
i2c: core: Make comment about I2C table requirement to reflect the code
i2c: designware: Fix standard mode speed when configuring the slave mode
i2c: designware: Fix oops from i2c_dw_irq_handler_slave
i2c: designware: Fix system suspend
irq_create_affinity_masks() can return NULL on non-SMP systems, when there
are not enough "free" vectors available to spread, or if memory allocation
for the CPU masks fails. Only the allocation failure is of interest, and
even then the system will work just fine except for non-optimally spread
vectors. Thus remove the warnings.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: David S. Miller <davem@davemloft.net>
We're keeping in a good shape, this batch contains just a few small
fixes (a regression fix for ASoC rt5677 codec, NULL dereference and
error-path fixes in firewire, and a corner-case ioctl error fix for
user TLV), as well as usual quirks for USB-audio and HD-audio.
-----BEGIN PGP SIGNATURE-----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=Sqtt
-----END PGP SIGNATURE-----
Merge tag 'sound-4.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"We're keeping in a good shape, this batch contains just a few small
fixes (a regression fix for ASoC rt5677 codec, NULL dereference and
error-path fixes in firewire, and a corner-case ioctl error fix for
user TLV), as well as usual quirks for USB-audio and HD-audio"
* tag 'sound-4.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ASoC: rt5677: Reintroduce I2C device IDs
ALSA: hda - Add stereo mic quirk for Lenovo G50-70 (17aa:3978)
ALSA: core: Fix unexpected error at replacing user TLV
ALSA: usb-audio: Add delay quirk for H650e/Jabra 550a USB headsets
ALSA: firewire-motu: destroy stream data surely at failure of card initialization
ALSA: firewire: fix NULL pointer dereference when releasing uninitialized data of iso-resource
A single fix for tegra210-adma driver to check of_irq_get() error
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=ccQ+
-----END PGP SIGNATURE-----
Merge tag 'dmaengine-fix-4.13-rc7' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine fix from Vinod Koul:
"A single fix for tegra210-adma driver to check of_irq_get() error"
* tag 'dmaengine-fix-4.13-rc7' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: tegra210-adma: fix of_irq_get() error check
-----BEGIN PGP SIGNATURE-----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=kkM0
-----END PGP SIGNATURE-----
Merge tag 'drm-fixes-for-v4.13-rc7' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Fixes for rc7, nothing too crazy, some core, i915, and sunxi fixes,
Intel CI has been responsible for some of these fixes being required"
* tag 'drm-fixes-for-v4.13-rc7' of git://people.freedesktop.org/~airlied/linux:
drm/i915/gvt: Fix the kernel null pointer error
drm: Release driver tracking before making the object available again
drm/i915: Clear lost context-switch interrupts across reset
drm/i915/bxt: use NULL for GPIO connection ID
drm/i915/cnl: Fix LSPCON support.
drm/i915/vbt: ignore extraneous child devices for a port
drm/i915: Initialize 'data' in intel_dsi_dcs_backlight.c
drm/atomic: If the atomic check fails, return its value first
drm/atomic: Handle -EDEADLK with out-fences correctly
drm: Fix framebuffer leak
drm/imx: ipuv3-plane: fix YUV framebuffer scanout on the base plane
gpu: ipu-v3: add DRM dependency
drm/rockchip: Fix suspend crash when drm is not bound
drm/sun4i: Implement drm_driver lastclose to restore fbdev console
Sergei Trofimovich