| Age | Commit message (Collapse) | Author |
|---|
|
If the vmemmap array gets filled with large pages we allocate those
pages with vmemmap_alloc_block(), which returns cleared pages.
Only for single 4k pages we call our own vmem_alloc_pages() which does
not return cleared pages. However we can also call vmemmap_alloc_block()
to allocate the 4k pages.
This way we can also make sure the vmemmap array is cleared after its
population.
Therefore we can remove the memset at the end of the function which
would clear the vmmemmap array a second time on machines which do
support EDAT1.
On very large configurations this can save us several seconds.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
|
The architecture suggests to use address 0 as parameter for stfl,
to allow for future extensions. Using __LC_STFL_FAC_LIST (0x200)
shows which address is used, but might be not future proof.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
|
Add an owner field to the arch_rwlock_t to be able to pass the timeslice
of a virtual CPU with diagnose 0x9c to the lock owner in case the rwlock
is write-locked. The undirected yield in case the rwlock is acquired
writable but the lock is read-locked is removed.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
|
Signed-off-by: Ingo Tuchscherer <ingo.tuchscherer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
|
Remove tape_state from status register and report the drive's current
setting for block size instead as known from other tapes.
Density is not supported so nothing to report here.
Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
|
This device driver allows accessing a HMC drive CD/DVD-ROM.
It can be used in a LPAR and z/VM environment.
Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Ralf Hoppe <rhoppe@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
|
The event type masks can change asynchronously. These changes are reported
by SCLP to the OS by state-change events which are retrieved with the read
event data command. The SCLP driver has a request queue, there is a window
where the read event data request has not completed yet but the SCLP console
drivers are trying to queue output requests. As the masks are not updated
yet the requests are discarded.
The simplest fix is to queue the console requests independent of the
event type masks and rely on SCLP to return with an error code if a
specific event type is not available.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
|
Extends the number of ap domains within the zcrypt device driver up to 256.
AP domains in the range 00..255 will be detected.
Signed-off-by: Ingo Tuchscherer <ingo.tuchscherer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
|
Use a memory barrier + store sequence instead of a load + compare and swap
sequence to unlock a spinlock and an rw lock.
For the spinlock case this saves us two memory reads and a not needed cpu
serialization after the compare and swap instruction stored the new value.
The kernel size (performance_defconfig) gets reduced by ~14k.
Average execution time of a tight inlined spin_unlock loop drops from
5.8ns to 0.7ns on a zEC12 machine.
An artificial stress test case where several counters are protected with
a single spinlock and which are only incremented while holding the spinlock
shows ~30% improvement on a 4 cpu machine.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
|
Reduce the number of executed instructions within the mcount block if
function tracing is enabled. We achieve that by using a non-standard
C function call ABI. Since the called function is also written in
assembler this is not a problem.
This also allows to replace the unconditional store at the beginning
of the mcount block with a larl instruction, which doesn't touch
memory.
In theory we could also patch the first instruction of the mcount block
to enable and disable function tracing. However this would break kprobes.
This could be fixed with implementing the "kprobes_on_ftrace" feature;
however keeping the odd jprobes working seems not to be possible without
a lot of code churn. Therefore keep the code easy and simply accept one
wasted 1-cycle "larl" instruction per function prologue.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
|
Even if it has a __used annotation it is actually unused.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
|
We have too many combinations for function tracing. Lets simply stick to
the most advanced option, so we don't have to care of other combinations.
This means we always select DYNAMIC_FTRACE if FUNCTION_TRACER is selected.
In the s390 Makefile also remove CONFIG_FTRACE_SYSCALLS since that
functionality got moved to architecture independent code in the meantime.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
|
This code is based on a patch from Vojtech Pavlik.
http://marc.info/?l=linux-s390&m=140438885114413&w=2
The actual implementation now differs significantly:
Instead of adding a second function "ftrace_regs_caller" which would be nearly
identical to the existing ftrace_caller function, the current ftrace_caller
function is now an alias to ftrace_regs_caller and always passes the needed
pt_regs structure and function_trace_op parameters unconditionally.
Besides that also use asm offsets to correctly allocate and access the new
struct pt_regs on the stack.
While at it we can make use of new instruction to get rid of some indirect
loads if compiled for new machines.
The passed struct pt_regs can be changed by the called function and it's new
contents will replace the current contents.
Note: to change the return address the embedded psw member of the pt_regs
structure must be changed. The psw member is right now incomplete, since
the mask part is missing. For all current use cases this should be sufficent.
Providing and restoring a sane mask would mean we need to add an epsw/lpswe
pair to the mcount code. Only these two instruction would cost us ~120 cycles
which currently seems not necessary.
Cc: Vojtech Pavlik <vojtech@suse.cz>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
|
When the function graph tracer is disabled we can skip three additional
instructions. So let's just do this.
So if function tracing is enabled but function graph tracing is
runtime disabled, we get away with a single unconditional branch.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
|
Currently the march flag gets only passed to C files, but not to
assembler files.
This means that we can't add new instructions like e.g. aghik to asm
files, since the assembler doesn't know of the new instructions if
the appropriate march flag isn't specified.
So also pass the march flag when compiling assembler files as well.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
|
Add CLOCK_REALTIME_COARSE and CLOCK_MONOTONIC_COARSE optimization to
the 64-bit and 31-bit vdso.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
|
If gettimeofday / clock_gettime are called multiple times in a row
the STCK instruction will stall until a difference in the result is
visible. This unnecessarily slows down the vdso calls, use stcke
instead of stck to get rid of the stall.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
|
s390 supports kprobes since 2006 but is missing in the list of
architectures that support kprobes.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
|
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 bugfix from Ted Ts'o.
[ Hmm. It's possible we should make kfree() aware of error pointers,
and use IS_ERR_OR_NULL rather than a NULL check. But in the meantime
this is obviously the right fix. - Linus ]
* 'for_linus_urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: avoid trying to kfree an ERR_PTR pointer
|
|
Pull nfsd bugfixes from Bruce Fields:
"A couple minor nfsd bugfixes"
* 'for-3.17' of git://linux-nfs.org/~bfields/linux:
lockd: fix rpcbind crash on lockd startup failure
nfsd4: fix rd_dircount enforcement
|
|
Nikita Yuschenko reported that booting a kernel with init=/bin/sh and
then nfs mounting without portmap or rpcbind running using a busybox
mount resulted in:
# mount -t nfs 10.30.130.21:/opt /mnt
svc: failed to register lockdv1 RPC service (errno 111).
lockd_up: makesock failed, error=-111
Unable to handle kernel paging request for data at address 0x00000030
Faulting instruction address: 0xc055e65c
Oops: Kernel access of bad area, sig: 11 [#1]
MPC85xx CDS
Modules linked in:
CPU: 0 PID: 1338 Comm: mount Not tainted 3.10.44.cge #117
task: cf29cea0 ti: cf35c000 task.ti: cf35c000
NIP: c055e65c LR: c0566490 CTR: c055e648
REGS: cf35dad0 TRAP: 0300 Not tainted (3.10.44.cge)
MSR: 00029000 <CE,EE,ME> CR: 22442488 XER: 20000000
DEAR: 00000030, ESR: 00000000
GPR00: c05606f4 cf35db80 cf29cea0 cf0ded80 cf0dedb8 00000001 1dec3086
00000000
GPR08: 00000000 c07b1640 00000007 1dec3086 22442482 100b9758 00000000
10090ae8
GPR16: 00000000 000186a5 00000000 00000000 100c3018 bfa46edc 100b0000
bfa46ef0
GPR24: cf386ae0 c07834f0 00000000 c0565f88 00000001 cf0dedb8 00000000
cf0ded80
NIP [c055e65c] call_start+0x14/0x34
LR [c0566490] __rpc_execute+0x70/0x250
Call Trace:
[cf35db80] [00000080] 0x80 (unreliable)
[cf35dbb0] [c05606f4] rpc_run_task+0x9c/0xc4
[cf35dbc0] [c0560840] rpc_call_sync+0x50/0xb8
[cf35dbf0] [c056ee90] rpcb_register_call+0x54/0x84
[cf35dc10] [c056f24c] rpcb_register+0xf8/0x10c
[cf35dc70] [c0569e18] svc_unregister.isra.23+0x100/0x108
[cf35dc90] [c0569e38] svc_rpcb_cleanup+0x18/0x30
[cf35dca0] [c0198c5c] lockd_up+0x1dc/0x2e0
[cf35dcd0] [c0195348] nlmclnt_init+0x2c/0xc8
[cf35dcf0] [c015bb5c] nfs_start_lockd+0x98/0xec
[cf35dd20] [c015ce6c] nfs_create_server+0x1e8/0x3f4
[cf35dd90] [c0171590] nfs3_create_server+0x10/0x44
[cf35dda0] [c016528c] nfs_try_mount+0x158/0x1e4
[cf35de20] [c01670d0] nfs_fs_mount+0x434/0x8c8
[cf35de70] [c00cd3bc] mount_fs+0x20/0xbc
[cf35de90] [c00e4f88] vfs_kern_mount+0x50/0x104
[cf35dec0] [c00e6e0c] do_mount+0x1d0/0x8e0
[cf35df10] [c00e75ac] SyS_mount+0x90/0xd0
[cf35df40] [c000ccf4] ret_from_syscall+0x0/0x3c
The addition of svc_shutdown_net() resulted in two calls to
svc_rpcb_cleanup(); the second is no longer necessary and crashes when
it calls rpcb_register_call with clnt=NULL.
Reported-by: Nikita Yushchenko <nyushchenko@dev.rtsoft.ru>
Fixes: 679b033df484 "lockd: ensure we tear down any live sockets when socket creation fails during lockd_up"
Cc: stable@vger.kernel.org
Acked-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
|
|
Commit 3b299709091b "nfsd4: enforce rd_dircount" totally misunderstood
rd_dircount; it refers to total non-attribute bytes returned, not number
of directory entries returned.
Bring the code into agreement with RFC 3530 section 14.2.24.
Cc: stable@vger.kernel.org
Fixes: 3b299709091b "nfsd4: enforce rd_dircount"
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
"A bug fix for the vdso code, the loadparm for booting from SCSI is
added and the access permissions for the dasd module parameters are
corrected"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/vdso: remove NULL pointer check from clock_gettime
s390/ipl: Add missing SCSI loadparm attributes to /sys/firmware
s390/dasd: Make module parameter visible in sysfs
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup fixes from Tejun Heo:
"This pull request includes Alban's patch to disallow '\n' in cgroup
names.
Two other patches from Li to fix a possible oops when cgroup
destruction races against other file operations and one from Vivek to
fix a unified hierarchy devel behavior"
* 'for-3.17-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: check cgroup liveliness before unbreaking kernfs
cgroup: delay the clearing of cgrp->kn->priv
cgroup: Display legacy cgroup files on default hierarchy
cgroup: reject cgroup names with '\n'
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
Pull percpu fixes from Tejun Heo:
"One patch to fix a failure path in the alloc path. The bug is
dangerous but probably not too likely to actually trigger in the wild
given that there hasn't been any report yet.
The other two are low impact fixes"
* 'for-3.17-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
percpu: free percpu allocation info for uniprocessor system
percpu: perform tlb flush after pcpu_map_pages() failure
percpu: fix pcpu_alloc_pages() failure path
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata fixes from Tejun Heo:
"Two patches are to add PCI IDs for ICH9 and all others are device
specific fixes. Nothing too interesting"
* 'for-3.17-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
ahci_xgene: Fix the link down in first attempt for the APM X-Gene SoC AHCI SATA host controller driver.
ahci_xgene: Skip the PHY and clock initialization if already configured by the firmware.
ahci: add pcid for Marvel 0x9182 controller
ata: Disabling the async PM for JMicron chip 363/361
ata_piix: Add Device IDs for Intel 9 Series PCH
ahci: Add Device IDs for Intel 9 Series PCH
ata: ahci_tegra: Read calibration fuse
|
|
Pull networking fixes from David Miller:
1) Fix skb leak in mac802154, from Martin Townsend
2) Use select not depends on NF_NAT for NFT_NAT, from Pablo Neira
Ayuso
3) Fix union initializer bogosity in vxlan, from Gerhard Stenzel
4) Fix RX checksum configuration in stmmac driver, from Giuseppe
CAVALLARO
5) Fix TSO with non-accelerated VLANs in e1000, e1000e, bna, ehea,
i40e, i40evf, mvneta, and qlge, from Vlad Yasevich
6) Fix capability checks in phy_init_eee(), from Giuseppe CAVALLARO
7) Try high order allocations more sanely for SKBs, specifically if a
high order allocation fails, fall back directly to zero order pages
rather than iterating down one order at a time. From Eric Dumazet
8) Fix a memory leak in openvswitch, from Li RongQing
9) amd-xgbe initializes wrong spinlock, from Thomas Lendacky
10) RTNL locking was busted in setsockopt for anycast and multicast, fix
from Sabrina Dubroca
11) Fix peer address refcount leak in ipv6, from Nicolas Dichtel
12) DocBook typo fixes, from Masanari Iida
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (101 commits)
ipv6: restore the behavior of ipv6_sock_ac_drop()
amd-xgbe: Enable interrupts for all management counters
amd-xgbe: Treat certain counter registers as 64 bit
greth: moved TX ring cleaning to NAPI rx poll func
cnic : Cleanup CONFIG_IPV6 & VLAN check
net: treewide: Fix typo found in DocBook/networking.xml
bnx2x: Fix link problems for 1G SFP RJ45 module
3c59x: avoid panic in boomerang_start_xmit when finding page address:
netfilter: add explicit Kconfig for NETFILTER_XT_NAT
ipv6: use addrconf_get_prefix_route() to remove peer addr
ipv6: fix a refcnt leak with peer addr
net-timestamp: only report sw timestamp if reporting bit is set
drivers/net/fddi/skfp/h/skfbi.h: Remove useless PCI_BASE_2ND macros
l2tp: fix race while getting PMTU on PPP pseudo-wire
ipv6: fix rtnl locking in setsockopt for anycast and multicast
VMXNET3: Check for map error in vmxnet3_set_mc
openvswitch: distinguish between the dropped and consumed skb
amd-xgbe: Fix initialization of the wrong spin lock
openvswitch: fix a memory leak
netfilter: fix missing dependencies in NETFILTER_XT_TARGET_LOG
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John W. Linville says:
====================
pull request: wireless 2014-09-05
Please pull this batch of fixes intended for the 3.17 stream...
For the mac80211 bits, Johannes says:
"Here are a few fixes for mac80211. One has been discussed for a while
and adds a terminating NUL-byte to the alpha2 sent to userspace, which
shouldn't be necessary but since many places treat it as a string we
couldn't move to just sending two bytes.
In addition to that, we have two VLAN fixes from Felix, a mesh fix, a
fix for the recently introduced RX aggregation offload, a revert for
a broken patch (that luckily didn't really cause any harm) and a small
fix for alignment in debugfs."
For the iwlwifi bits, Emmanuel says:
"I revert a patch that disabled CTS to self in dvm because users
reported issues. The revert is CCed to stable since the offending
patch was sent to stable too. I also bump the firmware API versions
since a new firmware is coming up. On top of that, Marcel fixes a
bug I introduced while fixing a bug in our Kconfig file."
Please let me know if there are problems!
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
It is possible that the interface is already gone after joining
the list of anycast on this interface as we don't hold a refcount
for the device, in this case we are safe to ignore the error.
What's more important, for API compatibility we should not
change this behavior for applications even if it were correct.
Fixes: commit a9ed4a2986e13011 ("ipv6: fix rtnl locking in setsockopt for anycast and multicast")
Cc: Sabrina Dubroca <sd@queasysnail.net>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
|
|
new link for - How to piss off a Linux kernel subsystem maintainer
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
The NFS/RDMA Kconfig symbol was split into separate options for client
and server in commit 2e8c12e1b765 ("xprtrdma: add separate Kconfig
options for NFSoRDMA client and server support").
Update the documentation to reflect this split.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: "J. Bruce Fields" <bfields@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
hpfall.c was renamed to freefall.c in 3.16, but this file still refer to
hpfall.c instead of freefall.c
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
The example code provided with the i2c device interface documentation
won't compile since it uses the reserved word "register" to name a
variable.
The compiler fails with this error message:
error: expected identifier or '(' before '=' token
__u8 register = 0x20; /* Device register to access */
^
Rename the variable "register" to simply "reg" in the example code.
Another couple of typos has been fixed as well.
[Change "! =" to "!=".]
Signed-off-by: Jose Alarcon Roldan <jose.alarcon.roldan@gmail.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Despite the fact that these functions have been around for years, they
are little used (only 15 uses in 13 files at the preseht time) even
though many other files use work-arounds to achieve the same result.
By documenting them, hopefully they will become more widely used.
Signed-off-by: Rob Jones <rob.jones@codethink.co.uk>
Acked-by: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management fixes from Rafael Wysocki:
"These are regression fixes (ACPI sysfs, ACPI video, suspend test),
ACPI cpuidle deadlock fix, missing runtime validation of ACPI _DSD
output, a fix and a new CPU ID for the RAPL driver, new blacklist
entry for the ACPI EC driver and a couple of trivial cleanups
(intel_pstate and generic PM domains).
Specifics:
- Fix for recently broken test_suspend= command line argument (Rafael
Wysocki).
- Fixes for regressions related to the ACPI video driver caused by
switching the default to native backlight handling in 3.16 from
Hans de Goede.
- Fix for a sysfs attribute of ACPI device objects that returns stale
values sometimes due to the fact that they are cached instead of
executing the appropriate method (_SUN) every time (broken in
3.14). From Yasuaki Ishimatsu.
- Fix for a deadlock between cpuidle_lock and cpu_hotplug.lock in the
ACPI processor driver from Jiri Kosina.
- Runtime output validation for the ACPI _DSD device configuration
object missing from the support for it that has been introduced
recently. From Mika Westerberg.
- Fix for an unuseful and misleading RAPL (Running Average Power
Limit) domain detection message in the RAPL driver from Jacob Pan.
- New Intel Haswell CPU ID for the RAPL driver from Jason Baron.
- New Clevo W350etq blacklist entry for the ACPI EC driver from Lan
Tianyu.
- Cleanup for the intel_pstate driver and the core generic PM domains
code from Gabriele Mazzotta and Geert Uytterhoeven"
* tag 'pm+acpi-3.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / cpuidle: fix deadlock between cpuidle_lock and cpu_hotplug.lock
ACPI / scan: not cache _SUN value in struct acpi_device_pnp
cpufreq: intel_pstate: Remove unneeded variable
powercap / RAPL: change domain detection message
powercap / RAPL: add support for CPU model 0x3f
PM / domains: Make generic_pm_domain.name const
PM / sleep: Fix test_suspend= command line option
ACPI / EC: Add msi quirk for Clevo W350etq
ACPI / video: Disable native_backlight on HP ENVY 15 Notebook PC
ACPI / video: Add a disable_native_backlight quirk
ACPI / video: Fix use_native_backlight selection logic
ACPICA: ACPI 5.1: Add support for runtime validation of _DSD package.
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull filesystem fixes from Al Viro:
"Several bugfixes (all of them -stable fodder).
Alexey's one deals with double mutex_lock() in UFS (apparently, nobody
has tried to test "ufs: sb mutex merge + mutex_destroy" on something
like file creation/removal on ufs). Mine deal with two kinds of
umount bugs, in umount propagation and in handling of automounted
submounts, both resulting in bogus transient EBUSY from umount"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
ufs: fix deadlocks introduced by sb mutex merge
fix EBUSY on umount() from MNT_SHRINKABLE
get rid of propagate_umount() mistakenly treating slaves as busy.
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU fix from Ingo Molnar:
"A boot hang fix for the offloaded callback RCU model (RCU_NOCB_CPU=y
&& (TREE_CPU=y || TREE_PREEMPT_RC)) in certain bootup scenarios"
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
rcu: Make nocb leader kthreads process pending callbacks after spawning
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Thomas Gleixner:
"Three fixlets from the timer departement:
- Update the timekeeper before updating vsyscall and pvclock. This
fixes the kvm-clock regression reported by Chris and Paolo.
- Use the proper irq work interface from NMI. This fixes the
regression reported by Catalin and Dave.
- Clarify the compat_nanosleep error handling mechanism to avoid
future confusion"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timekeeping: Update timekeeper before updating vsyscall and pvclock
compat: nanosleep: Clarify error handling
nohz: Restore NMI safe local irq work for local nohz kick
|
|
Commit 0244756edc4b ("ufs: sb mutex merge + mutex_destroy") introduces
deadlocks in ufs_new_inode() and ufs_free_inode().
Most callers of that functions acqure the mutex by themselves and
ufs_{new,free}_inode() do that via lock_ufs(),
i.e we have an unavoidable double lock.
The patch proposes to resolve the issue by making sure that
ufs_{new,free}_inode() are not called with the mutex held.
Found by Linux Driver Verification project (linuxtesting.org).
Cc: stable@vger.kernel.org # 3.16
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
|
|
Pull kvm fixes from Paolo Bonzini:
"A smattering of bug fixes across most architectures"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
powerpc/kvm/cma: Fix panic introduces by signed shift operation
KVM: s390/mm: Fix guest storage key corruption in ptep_set_access_flags
KVM: s390/mm: Fix storage key corruption during swapping
arm/arm64: KVM: Complete WFI/WFE instructions
ARM/ARM64: KVM: Nuke Hyp-mode tlbs before enabling MMU
KVM: s390/mm: try a cow on read only pages for key ops
KVM: s390: Fix user triggerable bug in dead code
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Kevin Hilman:
"Another round of fixes from arm-soc land, which are mostly DT fixes
for:
- OMAP: handful of DT fixes devices on newly supported hardware
- davinci: fix 2nd EDMA channel
- ux500: extend previous pinctrl fix to another board
- at91: clock registration fixes, compatibility string precision
And one more fix for event cleanup in drivers/bus/arm-ccn"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
bus: arm-ccn: Move event cleanup routine
ARM: at91/dt: rm9200: fix usb clock definition
ARM: at91: rm9200: fix clock registration
ARM: at91/dt: sam9g20: set at91sam9g20 pllb driver
ARM: dts: dra7-evm: Add vtt regulator support
ARM: dts: dra7-evm: Fix spi1 mux documentation
ARM: dts: am43x-epos-evm: Disable QSPI to prevent conflict with GPMC-NAND
ARM: OMAP2+: gpmc: Don't complain if wait pin is used without r/w monitoring
ARM: dts: am43xx-epos-evm: Don't use read/write wait monitoring
ARM: dts: am437x-gp-evm: Don't use read/write wait monitoring
ARM: dts: am437x-gp-evm: Use BCH16 ECC scheme instead of BCH8
ARM: dts: am43x-epos-evm: Use BCH16 ECC scheme instead of BCH8
ARM: dts: am4372: fix USB regs size
ARM: dts: am437x-gp: switch i2c0 to 100KHz
ARM: dts: dra7-evm: Fix 8th NAND partition's name
ARM: dts: dra7-evm: Fix i2c3 pinmux and frequency
ARM: ux500: disable msp2 node on Snowball
ARM: edma: Fix configuration parsing for SoCs with multiple eDMA3 CC
ARM: dts: set 'ti,set-rate-parent' for dpll4_m5x2 clock
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs
Pull xfs fixes from Dave Chinner:
"The fixes all address recently discovered data corruption issues.
The original Direct IO issue was discovered by Chris Mason @ Facebook
on a production workload which mixed buffered reads with direct reads
and writes IO to the same file. The fix for that exposed other issues
with page invalidation (exposed by millions of fsx operations) failing
due to dirty buffers beyond EOF.
Finally, the collapse_range code could also cause problems due to
racing writeback changing the extent map while it was being shifted
around. The commits for that problem are simple mitigation fixes that
prevent the problem from occuring. A more robust fix for 3.18 that
addresses the underlying problem is currently being worked on by
Brian.
Summary of fixes:
- a direct IO read/buffered read data corruption
- the associated fallout from the DIO data corruption fix
- collapse range bugs that are potential data corruption issues"
* tag 'xfs-for-linus-3.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs:
xfs: trim eofblocks before collapse range
xfs: xfs_file_collapse_range is delalloc challenged
xfs: don't log inode unless extent shift makes extent modifications
xfs: use ranged writeback and invalidation for direct IO
xfs: don't zero partial page cache pages during O_DIRECT writes
xfs: don't zero partial page cache pages during O_DIRECT writes
xfs: don't dirty buffers beyond EOF
|
|
Pull mtd fixes from Brian Norris:
"Two trivial MTD updates for 3.17-rc4:
- a tiny comment tweak, to kill a bunch of DocBook warnings added
during the merge window
- a small fixup to the OTP routines' error handling"
* tag 'for-linus-20140905' of git://git.infradead.org/linux-mtd:
mtd: nand: fix DocBook warnings on nand_sdr_timings doc
mtd: cfi_cmdset_0002: check return code for get_chip()
|
|
The update_walltime() code works on the shadow timekeeper to make the
seqcount protected region as short as possible. But that update to the
shadow timekeeper does not update all timekeeper fields because it's
sufficient to do that once before it becomes life. One of these fields
is tkr.base_mono. That stays stale in the shadow timekeeper unless an
operation happens which copies the real timekeeper to the shadow.
The update function is called after the update calls to vsyscall and
pvclock. While not correct, it did not cause any problems because none
of the invoked update functions used base_mono.
commit cbcf2dd3b3d4 (x86: kvm: Make kvm_get_time_and_clockread()
nanoseconds based) changed that in the kvm pvclock update function, so
the stale mono_base value got used and caused kvm-clock to malfunction.
Put the update where it belongs and fix the issue.
Reported-by: Chris J Arges <chris.j.arges@canonical.com>
Reported-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: John Stultz <john.stultz@linaro.org>
Link: http://lkml.kernel.org/r/alpine.DEB.2.10.1409050000570.3333@nanos
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
|
The error handling in compat_sys_nanosleep() is correct, but
completely non obvious. Document it and restrict it to the
-ERESTART_RESTARTBLOCK return value for clarity.
Reported-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
|
Tom Lendacky says:
====================
amd-xgbe: AMD XGBE driver fixes 2014-09-05
The following series of patches includes fixes to the driver.
- Proper access to 64 bit management counter registers
- Enable all management counter registers to generate an interrupt when
the counter threshold is reached
This patch series is based on net.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
As the management counters reach a threshold they will generate an
interrupt so the value can be saved and the counter reset. The
current code does not enable this interrupt on all counters. This
can result in inaccurate statistics.
Update the code to enable all the counters to generate an interrupt
when its threshold is exceeded.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Even if the management counters are configured to be 32 bit register
values, the [rt]xoctetcount_gb and [rt]xoctetcount_g counters are
always 64 bit counter registers. Since they are not being treated as
64 bit values, these statistics are being reported incorrectly (ifconfig,
ethtool, etc.).
Update the routines used to read the registers to access the "hi"
register (an offset of 4 from the "lo" register) to create a 64 bit
value for these 64 bit counters.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
