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Overwrite ceph_osd_request::r_oloc.pool with read_tier for read ops and
write_tier for write and read+write ops (aka basic tiering support).
{read,write}_tier are part of pg_pool_t since v9. This commit bumps
our pg_pool_t decode compat version from v7 to v9, all new fields
except for {read,write}_tier are ignored.
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
"Lookup pool info by ID" function is hidden in osdmap.c. Expose it to
the rest of libceph.
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
Update CEPH_OSD_FLAG_* enum. (We need CEPH_OSD_FLAG_IGNORE_OVERLAY to
support tiering).
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
Switch ceph_calc_ceph_pg() to new oloc and oid abstractions and rename
it to ceph_oloc_oid_to_pg() to make its purpose more clear.
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
In preparation for tiering support, which would require having two
(base and target) object names for each osd request and also copying
those names around, introduce struct ceph_object_id (oid) and a couple
helpers to facilitate those copies and encapsulate the fact that object
name is not necessarily a NUL-terminated string.
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
In preparation for adding oid abstraction, rename MAX_OBJ_NAME_SIZE to
CEPH_MAX_OID_NAME_LEN.
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
Instead of relying on pool fields in ceph_file_layout (for mapping) and
ceph_pg (for enconding), start using ceph_object_locator (oloc)
abstraction. Note that userspace oloc currently consists of pool, key,
nspace and hash fields, while this one contains only a pool. This is
OK, because at this point we only send (i.e. encode) olocs and never
have to receive (i.e. decode) them.
This makes keeping a copy of ceph_file_layout in every osd request
unnecessary, so ceph_osd_request::r_file_layout field is nuked.
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
Encapsulate kmalloc vs vmalloc memory allocation and freeing logic into
two helpers, ceph_kvmalloc() and ceph_kvfree(), and switch to them.
ceph_kvmalloc() kmalloc()'s a maximum of 8 pages, anything bigger is
vmalloc()'ed with __GFP_HIGHMEM set. This changes the existing
behaviour:
- for buffers (ceph_buffer_new()), from trying to kmalloc() everything
and using vmalloc() just as a fallback
- for messages (ceph_msg_new()), from going to vmalloc() for anything
bigger than a page
- for messages (ceph_msg_new()), from disallowing vmalloc() to use high
memory
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
Version 3 cap import message includes the ID of the exported
caps. It allow us to remove the exported caps if we still haven't
received the corresponding cap export message.
We remove the exported caps because they are stale, keeping them
can compromise consistence.
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Rename front_max field of struct ceph_msg to front_alloc_len to make
its purpose more clear.
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
Add CRUSH_V2 feature (new indep mode and SET_* steps) to a set of
features supported by default.
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
This allows all of the tunables to be overridden by a specific rule.
Reflects ceph.git commits d129e09e57fbc61cfd4f492e3ee77d0750c9d292,
0497db49e5973b50df26251ed0e3f4ac7578e66e.
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
This aligns the internal identifier names with the user-visible names in
the decompiled crush map language.
Reflects ceph.git commit caa0e22e15e4226c3671318ba1f61314bf6da2a6.
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
Since we can specify the recursive retries in a rule, we may as well also
specify the non-recursive tries too for completeness.
Reflects ceph.git commit d1b97462cffccc871914859eaee562f2786abfd1.
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
Parameterize the attempts for the _firstn choose method, and apply the
rule-specified tries count to firstn mode as well. Note that we have
slightly different behavior here than with indep:
If the firstn value is not specified for firstn, we pass through the
normal attempt count. This maintains compatibility with legacy behavior.
Note that this is usually *not* actually N^2 work, though, because of the
descend_once tunable. However, descend_once is unfortunately *not* the
same thing as 1 chooseleaf try because it is only checked on a reject but
not on a collision. Sigh.
In contrast, for indep, if tries is not specified we default to 1
recursive attempt, because that is simply more sane, and we have the
option to do so. The descend_once tunable has no effect for indep.
Reflects ceph.git commit 64aeded50d80942d66a5ec7b604ff2fcbf5d7b63.
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
Explicitly control the number of sample attempts, and allow the number of
tries in the recursive call to be explicitly controlled via the rule. This
is important because the amount of time we want to spend looking for a
solution may be rule dependent (e.g., higher for the wide indep pool than
the rep pools).
(We should do the same for the other tunables, by the way!)
Reflects ceph.git commit c43c893be872f709c787bc57f46c0e97876ff681.
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
For firstn mode, if we fail to make a valid placement choice, we just
continue and return a short result to the caller. For indep mode, however,
we need to make the position stable, and return an undefined value on
failed placements to avoid shifting later results to the left.
Reflects ceph.git commit b1d4dd4eb044875874a1d01c01c7d766db5d0a80.
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
This is only present to size the temporary scratch arrays that we put on
the stack. Let the caller allocate them as they wish and remove the
limitation.
Reflects ceph.git commit 1cfe140bf2dab99517589a82a916f4c75b9492d1.
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
Pass the size of the weight vector into crush_do_rule() to ensure that we
don't access values past the end. This can happen if the caller misbehaves
and passes a weight vector that is smaller than max_devices.
Currently the monitor tries to prevent that from happening, but this will
gracefully tolerate previous bad osdmaps that got into this state. It's
also a bit more defensive.
Reflects ceph.git commit 5922e2c2b8335b5e46c9504349c3a55b7434c01a.
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
This updates ceph_features.h so that it has all feature bits defined in
ceph.git. In the interim since the last update, ceph.git crossed the
"32 feature bits" point, and, the addition of the 33rd bit wasn't
handled correctly. The work-around is squashed into this commit and
reflects ceph.git commit 053659d05e0349053ef703b414f44965f368b9f0.
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
In preparation for ceph_features.h update, change all features fields
from unsigned int/u32 to u64. (ceph.git has ~40 feature bits at this
point.)
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
The PAUSEWR and PAUSERD flags are meant to stop the cluster from
processing writes and reads, respectively. The FULL flag is set when
the cluster determines that it is out of space, and will no longer
process writes. PAUSEWR and PAUSERD are purely client-side settings
already implemented in userspace clients. The osd does nothing special
with these flags.
When the FULL flag is set, however, the osd responds to all writes
with -ENOSPC. For cephfs, this makes sense, but for rbd the block
layer translates this into EIO. If a cluster goes from full to
non-full quickly, a filesystem on top of rbd will not behave well,
since some writes succeed while others get EIO.
Fix this by blocking any writes when the FULL flag is set in the osd
client. This is the same strategy used by userspace, so apply it by
default. A follow-on patch makes this configurable.
__map_request() is called to re-target osd requests in case the
available osds changed. Add a paused field to a ceph_osd_request, and
set it whenever an appropriate osd map flag is set. Avoid queueing
paused requests in __map_request(), but force them to be resent if
they become unpaused.
Also subscribe to the next osd map from the monitor if any of these
flags are set, so paused requests can be unblocked as soon as
possible.
Fixes: http://tracker.ceph.com/issues/6079
Reviewed-by: Sage Weil <sage@inktank.com>
Signed-off-by: Josh Durgin <josh.durgin@inktank.com>
This is a set of nine fixes (and one author update). The libsas one should fix
discovery in eSATA devices, the WRITE_SAME one is the largest, but it should
fix a lot of problems we've been getting with the emulated RAID devices
(they've been effectively lying about support and then firmware has been
choking on the commands). The rest are various crash, hang or warn driver
fixes.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is a set of nine fixes (and one author update).
The libsas one should fix discovery in eSATA devices, the WRITE_SAME
one is the largest, but it should fix a lot of problems we've been
getting with the emulated RAID devices (they've been effectively lying
about support and then firmware has been choking on the commands).
The rest are various crash, hang or warn driver fixes"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
[SCSI] bfa: Fix crash when symb name set for offline vport
[SCSI] enclosure: fix WARN_ON in dual path device removing
[SCSI] pm80xx: Tasklets synchronization fix.
[SCSI] pm80xx: Resetting the phy state.
[SCSI] pm80xx: Fix for direct attached device.
[SCSI] pm80xx: Module author addition
[SCSI] hpsa: return 0 from driver probe function on success, not 1
[SCSI] hpsa: do not discard scsi status on aborted commands
[SCSI] Disable WRITE SAME for RAID and virtual host adapter drivers
[SCSI] libsas: fix usage of ata_tf_to_fis
- cpufreq regression fix from Bjørn Mork restoring the pre-3.12
behavior of the framework during system suspend/hibernation to
avoid garbage sysfs files from being left behind in case of a
suspend error.
- PNP regression fix to restore the correct states of devices after
resume from hibernation broken in 3.12. From Dmitry Torokhov.
- cpuidle fix to prevent cpuidle device unregistration from crashing
due to a NULL pointer dereference if cpuidle has been disabled
from the kernel command line. From Konrad Rzeszutek Wilk.
- intel_idle fix for the C6 state definition on Intel Avoton/Rangeley
processors from Arne Bockholdt.
- Power capping framework fix to make the energy_uj sysfs attribute
work in accordance with the documentation. From Srinivas Pandruvada.
- epoll fix to make it ignore the EPOLLWAKEUP flag if the kernel has
been compiled with CONFIG_PM_SLEEP unset (in which case that flag
should not have any effect). From Amit Pundir.
- cpufreq fix to prevent governor sysfs files from being lost over
system suspend/resume in some (arguably unusual) situations. From
Viresh Kumar.
/
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Merge tag 'pm-3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
- cpufreq regression fix from Bjørn Mork restoring the pre-3.12
behavior of the framework during system suspend/hibernation to avoid
garbage sysfs files from being left behind in case of a suspend error
- PNP regression fix to restore the correct states of devices after
resume from hibernation broken in 3.12. From Dmitry Torokhov.
- cpuidle fix to prevent cpuidle device unregistration from crashing
due to a NULL pointer dereference if cpuidle has been disabled from
the kernel command line. From Konrad Rzeszutek Wilk.
- intel_idle fix for the C6 state definition on Intel Avoton/Rangeley
processors from Arne Bockholdt.
- Power capping framework fix to make the energy_uj sysfs attribute
work in accordance with the documentation. From Srinivas Pandruvada.
- epoll fix to make it ignore the EPOLLWAKEUP flag if the kernel has
been compiled with CONFIG_PM_SLEEP unset (in which case that flag
should not have any effect). From Amit Pundir.
- cpufreq fix to prevent governor sysfs files from being lost over
system suspend/resume in some (arguably unusual) situations. From
Viresh Kumar.
* tag 'pm-3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PowerCap: Fix mode for energy counter
PNP: fix restoring devices after hibernation
cpuidle: Check for dev before deregistering it.
epoll: drop EPOLLWAKEUP if PM_SLEEP is disabled
cpufreq: fix garbage kobjects on errors during suspend/resume
cpufreq: suspend governors on system suspend/hibernate
intel_idle: Fixed C6 state on Avoton/Rangeley processors
* pm-epoll:
epoll: drop EPOLLWAKEUP if PM_SLEEP is disabled
* pnp:
PNP: fix restoring devices after hibernation
* powercap:
PowerCap: Fix mode for energy counter
* pm-cpuidle:
cpuidle: Check for dev before deregistering it.
intel_idle: Fixed C6 state on Avoton/Rangeley processors
* pm-cpufreq:
cpufreq: fix garbage kobjects on errors during suspend/resume
cpufreq: suspend governors on system suspend/hibernate
- Stable fix for a NFSv4.1 delegation and state recovery deadlock
- Stable fix for a loop on irrecoverable errors when returning delegations
- Fix a 3-way deadlock between layoutreturn, open, and state recovery
- Update the MAINTAINERS file with contact information for Trond Myklebust
- Close needs to handle NFS4ERR_ADMIN_REVOKED
- Enabling v4.2 should not recompile nfsd and lockd
- Fix a couple of compile warnings
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Merge tag 'nfs-for-3.13-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client bugfixes from Trond Myklebust:
- Stable fix for a NFSv4.1 delegation and state recovery deadlock
- Stable fix for a loop on irrecoverable errors when returning
delegations
- Fix a 3-way deadlock between layoutreturn, open, and state recovery
- Update the MAINTAINERS file with contact information for Trond
Myklebust
- Close needs to handle NFS4ERR_ADMIN_REVOKED
- Enabling v4.2 should not recompile nfsd and lockd
- Fix a couple of compile warnings
* tag 'nfs-for-3.13-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
nfs: fix do_div() warning by instead using sector_div()
MAINTAINERS: Update contact information for Trond Myklebust
NFSv4.1: Prevent a 3-way deadlock between layoutreturn, open and state recovery
SUNRPC: do not fail gss proc NULL calls with EACCES
NFSv4: close needs to handle NFS4ERR_ADMIN_REVOKED
NFSv4: Update list of irrecoverable errors on DELEGRETURN
NFSv4 wait on recovery for async session errors
NFS: Fix a warning in nfs_setsecurity
NFS: Enabling v4.2 should not recompile nfsd and lockd
A usual pattern of half ASoC and half HD-audio fixes, although
HD-audio fixups have more volumes, in addition to a couple of
trivial fixes. Nothing to worry much is found here.
For ASoC side: a few fixes for PCM rate constraints calculations,
regmap byte-order fix, the rest driver specific fixes (atmel, fsl,
omap, kirkwood, wm codecs).
For HD-audio: Dell headset and mono out fix, ELD update in polling
mode, ALC283 Chromebook fixes, a few fixes for old AD codecs and
MBA2,1 regression fix.
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Merge tag 'sound-3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A usual pattern of half ASoC and half HD-audio fixes, although
HD-audio fixups have more volumes, in addition to a couple of trivial
fixes. Nothing to worry much is found here.
For ASoC side: a few fixes for PCM rate constraints calculations,
regmap byte-order fix, the rest driver specific fixes (atmel, fsl,
omap, kirkwood, wm codecs).
For HD-audio: Dell headset and mono out fix, ELD update in polling
mode, ALC283 Chromebook fixes, a few fixes for old AD codecs and
MBA2, one regression fix"
* tag 'sound-3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (30 commits)
ALSA: hda - Fix silent output on MacBook Air 2,1
ALSA: hda - Fix missing ELD info when using jackpoll_ms parameter
ALSA: hda/realtek - remove hp_automute_hook from alc283_fixup_chromebook
ASoC: wm8731: fix dsp mode configuration
ALSA: hda/realtek - Independent of model for HP
ALSA: hda - Fix headset mic input after muted internal mic (Dell/Realtek)
ALSA: hda - Use always amps for auto-mute on AD1986A codec
ALSA: hda/analog - Handle inverted EAPD properly in vmaster hook
ALSA: hda - Another fixup for ASUS laptop with ALC660 codec
ALSA: atmel: Fix possible array overflow
ALSA: hda - Fix complete_all() timing in deferred probes
ALSA: hda - Fix bad EAPD setup for HP machines with AD1984A
ASoC: core: fix devres parameter in devm_snd_soc_register_card()
ASoC: omap: n810: Convert to clk_prepare_enable/clk_disable_unprepare
ASoC: fsl: set correct platform drvdata in pcm030_fabric_probe()
ASoC: fsl: imx-pcm-fiq: Remove unused 'runtime' variable
ASoC: fsl: imx-pcm-fiq: remove bogus period delta calculation
ALSA: hda - Fix silent output on ASUS W7J laptop
ASoC: core: Use consistent byte ordering in snd_soc_bytes_get
ALSA: dice: fix array limits in dice_proc_read()
...
Pull x86 and EFI fixes from Peter Anvin:
"Half of these are EFI-related:
The by far biggest change is the change to hold off the deletion of a
sysfs entry while a backend scan is in progress. This is to avoid
calling kmemdup() while under a spinlock.
The other major change is for each entry in the EFI pstore backend to
get a unique identifier, as required by the pstore filesystem proper.
The other changes are:
A fix to the recent consolidation and optimization of using "asm goto"
with read-modify-write operation, which broke the bitops; specifically
in such a way that we could end up generating invalid code.
A build hack to make sure we compile with -mno-sse. icc, and most
likely future versions of gcc, can generate SSE instructions unless we
tell it not to.
A comment-only patch to a change the was due in part to an unpublished
erratum; now when the erratum is published we want to add a comment
explaining why"
* 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/apic, doc: Justification for disabling IO APIC before Local APIC
x86, bitops: Correct the assembly constraints to testing bitops
x86-64, build: Always pass in -mno-sse
efi-pstore: Make efi-pstore return a unique id
x86/efi: Fix earlyprintk off-by-one bug
efivars, efi-pstore: Hold off deletion of sysfs entry until the scan is completed
- Fix compile warnings.
- Fix overly talkative diagnostic messages from usual use
cases wrt GPIO descriptors.
- Add a documentation 00-INDEX
- Use platform GPIOs as fallback when ACPI or device tree is
used as the primary means to get GPIO lines.
- A bug fix for the MPC8572/MPC8536 fixing erroneous input data.
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Merge tag 'gpio-v3.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Here are a few more GPIO patches, we're a bit noisy for being the GPIO
subsystem, mostly due to the new descriptor API, but all is getting
into shape.
- Fix compile warnings
- Fix overly talkative diagnostic messages from usual use cases wrt
GPIO descriptors
- Add a documentation 00-INDEX
- Use platform GPIOs as fallback when ACPI or device tree is used as
the primary means to get GPIO lines
- A bug fix for the MPC8572/MPC8536 fixing erroneous input data"
* tag 'gpio-v3.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpiolib: change a warning to debug message when failing to get gpio
powerpc/gpio: Fix the wrong GPIO input data on MPC8572/MPC8536
gpiolib: use platform GPIO mappings as fallback
Documentation: gpiolib: add 00-INDEX file
gpiolib: fix lookup of platform-mapped GPIOs
gpiolib: add missing declarations
Pull crypto fixes from Herbert Xu:
"This push fixes a number of crashes triggered by a previous crypto
self-test update. It also fixes a build problem in the caam driver,
as well as a concurrency issue in s390.
Finally there is a pair of fixes to bugs in the crypto scatterwalk
code and authenc that may lead to crashes"
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: testmgr - fix sglen in test_aead for case 'dst != src'
crypto: talitos - fix aead sglen for case 'dst != src'
crypto: caam - fix aead sglen for case 'dst != src'
crypto: ccm - Fix handling of zero plaintext when computing mac
crypto: s390 - Fix aes-xts parameter corruption
crypto: talitos - corrrectly handle zero-length assoc data
crypto: scatterwalk - Set the chain pointer indication bit
crypto: authenc - Find proper IV address in ablkcipher callback
crypto: caam - Add missing Job Ring include
Drop EPOLLWAKEUP from epoll events mask if CONFIG_PM_SLEEP is disabled.
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Add declaration of 'struct of_phandle_args' to avoid the following
warning:
In file included from arch/arm/mach-tegra/board-paz00.c:21:0:
include/linux/gpio/driver.h:102:17: warning: 'struct of_phandle_args' declared inside parameter list
include/linux/gpio/driver.h:102:17: warning: its scope is only this definition or declaration, which is probably not what you want
Also proactively add other definitions/includes that could be missing
in other contexts.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reported-by: Stephen Warren <swarren@wwwdotorg.org>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Pull irq fixes from Thomas Gleixner:
- Correction of fuzzy and fragile IRQ_RETVAL macro
- IRQ related resume fix affecting only XEN
- ARM/GIC fix for chained GIC controllers
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip: Gic: fix boot for chained gics
irq: Enable all irqs unconditionally in irq_resume
genirq: Correct fuzzy and fragile IRQ_RETVAL() definition
Pull scheduler fixes from Ingo Molnar:
"Various smaller fixlets, all over the place"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/doc: Fix generation of device-drivers
sched: Expose preempt_schedule_irq()
sched: Fix a trivial typo in comments
sched: Remove unused variable in 'struct sched_domain'
sched: Avoid NULL dereference on sd_busy
sched: Check sched_domain before computing group power
MAINTAINERS: Update file patterns in the lockdep and scheduler entries
Pull perf fixes from Ingo Molnar:
"Misc kernel and tooling fixes"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tools lib traceevent: Fix conversion of pointer to integer of different size
perf/trace: Properly use u64 to hold event_id
perf: Remove fragile swevent hlist optimization
ftrace, perf: Avoid infinite event generation loop
tools lib traceevent: Fix use of multiple options in processing field
perf header: Fix possible memory leaks in process_group_desc()
perf header: Fix bogus group name
perf tools: Tag thread comm as overriden
Pull networking updates from David Miller:
"Here is a pile of bug fixes that accumulated while I was in Europe"
1) In fixing kernel leaks to userspace during copying of socket
addresses, we broke a case that used to work, namely the user
providing a buffer larger than the in-kernel generic socket address
structure. This broke Ruby amongst other things. Fix from Dan
Carpenter.
2) Fix regression added by byte queue limit support in 8139cp driver,
from Yang Yingliang.
3) The addition of MSG_SENDPAGE_NOTLAST buggered up a few sendpage
implementations, they should just treat it the same as MSG_MORE.
Fix from Richard Weinberger and Shawn Landden.
4) Handle icmpv4 errors received on ipv6 SIT tunnels correctly, from
Oussama Ghorbel. In particular we should send an ICMPv6 unreachable
in such situations.
5) Fix some regressions in the recent genetlink fixes, in particular
get the pmcraid driver to use the new safer interfaces correctly.
From Johannes Berg.
6) macvtap was converted to use a per-cpu set of statistics, but some
code was still bumping tx_dropped elsewhere. From Jason Wang.
7) Fix build failure of xen-netback due to missing include on some
architectures, from Andy Whitecroft.
8) macvtap double counts received packets in statistics, fix from Vlad
Yasevich.
9) Fix various cases of using *_STATS_BH() when *_STATS() is more
appropriate. From Eric Dumazet and Hannes Frederic Sowa.
10) Pktgen ipsec mode doesn't update the ipv4 header length and checksum
properly after encapsulation. Fix from Fan Du.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (61 commits)
net/mlx4_en: Remove selftest TX queues empty condition
{pktgen, xfrm} Update IPv4 header total len and checksum after tranformation
virtio_net: make all RX paths handle erors consistently
virtio_net: fix error handling for mergeable buffers
virtio_net: Fixed a trivial typo (fitler --> filter)
netem: fix gemodel loss generator
netem: fix loss 4 state model
netem: missing break in ge loss generator
net/hsr: Support iproute print_opt ('ip -details ...')
net/hsr: Very small fix of comment style.
MAINTAINERS: Added net/hsr/ maintainer
ipv6: fix possible seqlock deadlock in ip6_finish_output2
ixgbe: Make ixgbe_identify_qsfp_module_generic static
ixgbe: turn NETIF_F_HW_L2FW_DOFFLOAD off by default
ixgbe: ixgbe_fwd_ring_down needs to be static
e1000: fix possible reset_task running after adapter down
e1000: fix lockdep warning in e1000_reset_task
e1000: prevent oops when adapter is being closed and reset simultaneously
igb: Fixed Wake On LAN support
inet: fix possible seqlock deadlocks
...
This implements the rtnl_link_ops fill_info routine for HSR.
Signed-off-by: Arvid Brodin <arvid.brodin@alten.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
Some host adapters do not pass commands through to the target disk
directly. Instead they provide an emulated target which may or may not
accurately report its capabilities. In some cases the physical device
characteristics are reported even when the host adapter is processing
commands on the device's behalf. This can lead to adapter firmware hangs
or excessive I/O errors.
This patch disables WRITE SAME for devices connected to host adapters
that provide an emulated target. Driver writers can disable WRITE SAME
by setting the no_write_same flag in the host adapter template.
[jejb: fix up rejections due to eh_deadline patch]
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: stable@kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Currently retransmitted DATA chunks could also be used for
RTT measurements since there are no flag to identify whether
the transmitted DATA chunk is a new one or a retransmitted one.
This problem is introduced by commit ae19c5486 ("sctp: remove
'resent' bit from the chunk") which inappropriately removed the
'resent' bit completely, instead of doing this, we should set
the resent bit only for the retransmitted DATA chunks.
Signed-off-by: Xufeng Zhang <xufeng.zhang@windriver.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The pmcraid driver is abusing the genetlink API and is using its
family ID as the multicast group ID, which is invalid and may
belong to somebody else (and likely will.)
Make it use the correct API, but since this may already be used
as-is by userspace, reserve a family ID for this code and also
reserve that group ID to not break userspace assumptions.
My previous patch broke event delivery in the driver as I missed
that it wasn't using the right API and forgot to update it later
in my series.
While changing this, I noticed that the genetlink code could use
the static group ID instead of a strcmp(), so also do that for
the VFS_DQUOT family.
Cc: Anil Ravindranath <anil_ravindranath@pmc-sierra.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The first netlink attribute (value 0) must always be defined as none/unspec.
This is correctly done in inet_diag.h, but other diag interfaces are wrong.
Because we cannot change an existing API, I add a comment to point the mistake
and avoid to propagate it in a new diag API in the future.
CC: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently, when mounting pstore file system, a read callback of
efi_pstore driver runs mutiple times as below.
- In the first read callback, scan efivar_sysfs_list from head and pass
a kmsg buffer of a entry to an upper pstore layer.
- In the second read callback, rescan efivar_sysfs_list from the entry
and pass another kmsg buffer to it.
- Repeat the scan and pass until the end of efivar_sysfs_list.
In this process, an entry is read across the multiple read function
calls. To avoid race between the read and erasion, the whole process
above is protected by a spinlock, holding in open() and releasing in
close().
At the same time, kmemdup() is called to pass the buffer to pstore
filesystem during it. And then, it causes a following lockdep warning.
To make the dynamic memory allocation runnable without taking spinlock,
holding off a deletion of sysfs entry if it happens while scanning it
via efi_pstore, and deleting it after the scan is completed.
To implement it, this patch introduces two flags, scanning and deleting,
to efivar_entry.
On the code basis, it seems that all the scanning and deleting logic is
not needed because __efivars->lock are not dropped when reading from the
EFI variable store.
But, the scanning and deleting logic is still needed because an
efi-pstore and a pstore filesystem works as follows.
In case an entry(A) is found, the pointer is saved to psi->data. And
efi_pstore_read() passes the entry(A) to a pstore filesystem by
releasing __efivars->lock.
And then, the pstore filesystem calls efi_pstore_read() again and the
same entry(A), which is saved to psi->data, is used for resuming to scan
a sysfs-list.
So, to protect the entry(A), the logic is needed.
[ 1.143710] ------------[ cut here ]------------
[ 1.144058] WARNING: CPU: 1 PID: 1 at kernel/lockdep.c:2740 lockdep_trace_alloc+0x104/0x110()
[ 1.144058] DEBUG_LOCKS_WARN_ON(irqs_disabled_flags(flags))
[ 1.144058] Modules linked in:
[ 1.144058] CPU: 1 PID: 1 Comm: systemd Not tainted 3.11.0-rc5 #2
[ 1.144058] 0000000000000009 ffff8800797e9ae0 ffffffff816614a5 ffff8800797e9b28
[ 1.144058] ffff8800797e9b18 ffffffff8105510d 0000000000000080 0000000000000046
[ 1.144058] 00000000000000d0 00000000000003af ffffffff81ccd0c0 ffff8800797e9b78
[ 1.144058] Call Trace:
[ 1.144058] [<ffffffff816614a5>] dump_stack+0x54/0x74
[ 1.144058] [<ffffffff8105510d>] warn_slowpath_common+0x7d/0xa0
[ 1.144058] [<ffffffff8105517c>] warn_slowpath_fmt+0x4c/0x50
[ 1.144058] [<ffffffff8131290f>] ? vsscanf+0x57f/0x7b0
[ 1.144058] [<ffffffff810bbd74>] lockdep_trace_alloc+0x104/0x110
[ 1.144058] [<ffffffff81192da0>] __kmalloc_track_caller+0x50/0x280
[ 1.144058] [<ffffffff815147bb>] ? efi_pstore_read_func.part.1+0x12b/0x170
[ 1.144058] [<ffffffff8115b260>] kmemdup+0x20/0x50
[ 1.144058] [<ffffffff815147bb>] efi_pstore_read_func.part.1+0x12b/0x170
[ 1.144058] [<ffffffff81514800>] ? efi_pstore_read_func.part.1+0x170/0x170
[ 1.144058] [<ffffffff815148b4>] efi_pstore_read_func+0xb4/0xe0
[ 1.144058] [<ffffffff81512b7b>] __efivar_entry_iter+0xfb/0x120
[ 1.144058] [<ffffffff8151428f>] efi_pstore_read+0x3f/0x50
[ 1.144058] [<ffffffff8128d7ba>] pstore_get_records+0x9a/0x150
[ 1.158207] [<ffffffff812af25c>] ? selinux_d_instantiate+0x1c/0x20
[ 1.158207] [<ffffffff8128ce30>] ? parse_options+0x80/0x80
[ 1.158207] [<ffffffff8128ced5>] pstore_fill_super+0xa5/0xc0
[ 1.158207] [<ffffffff811ae7d2>] mount_single+0xa2/0xd0
[ 1.158207] [<ffffffff8128ccf8>] pstore_mount+0x18/0x20
[ 1.158207] [<ffffffff811ae8b9>] mount_fs+0x39/0x1b0
[ 1.158207] [<ffffffff81160550>] ? __alloc_percpu+0x10/0x20
[ 1.158207] [<ffffffff811c9493>] vfs_kern_mount+0x63/0xf0
[ 1.158207] [<ffffffff811cbb0e>] do_mount+0x23e/0xa20
[ 1.158207] [<ffffffff8115b51b>] ? strndup_user+0x4b/0xf0
[ 1.158207] [<ffffffff811cc373>] SyS_mount+0x83/0xc0
[ 1.158207] [<ffffffff81673cc2>] system_call_fastpath+0x16/0x1b
[ 1.158207] ---[ end trace 61981bc62de9f6f4 ]---
Signed-off-by: Seiji Aguchi <seiji.aguchi@hds.com>
Tested-by: Madper Xie <cxie@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
- A big slew of documentation for the gpiod transition that
happened in the merge window, no semantic effect, but we should
provide proper documentation with the new API.
- Fix flags related to the new API.
- Fix to the find_chip_by_name() lookup function related to the
new API.
- Fix of_find_gpio() when not using device tree.
- Bug fix for the TB10x direction setting.
- Error path fixes from Dan Carpenter.
- Nasty IRQdomain bug relating to taking an unitialized spinlock.
- Minor fixes here and there.
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Merge tag 'gpio-v3.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Here us a bunch of patches for the v3.13 series. Most important stuff
is related to fixes and documentation for the new GPIO descriptor API.
If the diffstat is scary you'll notice most of it is to
Documentation/*:
- A big slew of documentation for the gpiod transition that happened
in the merge window, no semantic effect, but we should provide
proper documentation with the new API.
- Fix flags related to the new API.
- Fix to the find_chip_by_name() lookup function related to the new
API.
- Fix of_find_gpio() when not using device tree.
- Bug fix for the TB10x direction setting.
- Error path fixes from Dan Carpenter.
- Nasty IRQdomain bug relating to taking an unitialized spinlock.
- Minor fixes here and there"
* tag 'gpio-v3.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: bcm281xx: Fix return value of bcm_kona_gpio_get()
gpio: pl061: move irqdomain initialization
gpio: ucb1400: Add MODULE_ALIAS
gpiolib: fix of_find_gpio() when OF not defined
gpio: fix memory leak in error path
gpio: rcar: NULL dereference on error in probe()
gpio: msm: make msm_gpio.summary_irq signed for error handling
gpio: mvebu: make mvchip->irqbase signed for error handling
gpiolib: use dedicated flags for GPIO properties
gpiolib: fix find_chip_by_name()
Documentation: gpiolib: document new interface
gpio: tb10x: Set output value before setting direction to output
