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make ceph_kick_flushing_caps() ignore inodes whose cap flushes
have already been re-sent by ceph_early_kick_flushing_caps()
Signed-off-by: Yan, Zheng <zyan@redhat.com>
This patch includes following changes
- Assign flush tid to snapcap flush
- Remove session's s_cap_snaps_flushing list. Add inode to session's
s_cap_flushing list instead. Inode is removed from the list when
there is no pending snapcap flush or cap flush.
- make __kick_flushing_caps() re-send both snapcap flushes and cap
flushes.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
We don't have requirement of searching cap flush by TID. In most cases,
we just need to know TID of the oldest cap flush. List is ideal for this
usage.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
To mount non-default filesytem, user currently needs to provide mds
namespace ID. This is inconvenience.
This patch makes user be able to mount filesystem by name. If user
wants to mount non-default filesystem. Client first subscribes to
fsmap.user. Subscribe to mdsmap.<ID> after getting ID of filesystem.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
We can now handle the snapshot cases under RCU, as well as the
non-snapshot case when we don't need to queue up a lease renewal
allow LOOKUP_RCU walks to proceed under those conditions.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Yan, Zheng <zyan@redhat.com>
Under rcuwalk, we need to take extra care when dereferencing d_parent.
We want to do that once and pass a pointer to dentry_lease_is_valid.
Also, we must ensure that that function can handle the case where we're
racing with d_release. Check whether "di" is NULL under the d_lock, and
just return 0 if so.
Finally, we still need to kick off a renewal job if the lease is getting
close to expiration. If that's the case, then just drop out of rcuwalk
mode since that could block.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Yan, Zheng <zyan@redhat.com>
To check for a valid dentry lease, we need to get at the
ceph_dentry_info. Under rcuwalk though, we may end up with a dentry that
is on its way to destruction. Since we need to take the d_lock in
dentry_lease_is_valid already, we can just ensure that we clear the
d_fsinfo pointer out under the same lock before destroying it.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Yan, Zheng <zyan@redhat.com>
This patch adds codes that decode pool namespace information in
cap message and request reply. Pool namespace is saved in i_layout,
it will be passed to libceph when doing read/write.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Add pool namesapce pointer to struct ceph_file_layout and struct
ceph_object_locator. Pool namespace is used by when mapping object
to PG, it's also used when composing OSD request.
The namespace pointer in struct ceph_file_layout is RCU protected.
So libceph can read namespace without taking lock.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
[idryomov@gmail.com: ceph_oloc_destroy(), misc minor changes]
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
The data structure is for storing namesapce string. It allows namespace
string to be shared between cephfs inodes with same layout. This data
structure can also be referenced by OSD request.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Define new ceph_file_layout structure and rename old ceph_file_layout
to ceph_file_layout_legacy. This is preparation for adding namespace
to ceph_file_layout structure.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Add ceph_start_encoding() and ceph_start_decoding(), the equivalent of
ENCODE_START and DECODE_START in the userspace ceph code.
This is based on a patch from Mike Christie <michaelc@cs.wisc.edu>.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
An on-stack oid in ceph_ioctl_get_dataloc() is not initialized,
resulting in a WARN and a NULL pointer dereference later on. We will
have more of these on-stack in the future, so fix it with a convenience
macro.
Fixes: d30291b985 ("libceph: variable-sized ceph_object_id")
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
that caused misdirected requests, tagged for stable.
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Merge tag 'ceph-for-4.7-rc8' of git://github.com/ceph/ceph-client
Pull ceph fix from Ilya Dryomov:
"A fix for a long-standing bug in the incremental osdmap handling code
that caused misdirected requests, tagged for stable"
The tag is signed with a brand new key - Sage is on vacation and I
didn't anticipate this"
* tag 'ceph-for-4.7-rc8' of git://github.com/ceph/ceph-client:
libceph: apply new_state before new_up_client on incrementals
Pull networking fixes from David Miller:
1) Fix memory leak in nftables, from Liping Zhang.
2) Need to check result of vlan_insert_tag() in batman-adv otherwise we
risk NULL skb derefs, from Sven Eckelmann.
3) Check for dev_alloc_skb() failures in cfg80211, from Gregory
Greenman.
4) Handle properly when we have ppp_unregister_channel() happening in
parallel with ppp_connect_channel(), from WANG Cong.
5) Fix DCCP deadlock, from Eric Dumazet.
6) Bail out properly in UDP if sk_filter() truncates the packet to be
smaller than even the space that the protocol headers need. From
Michal Kubecek.
7) Similarly for rose, dccp, and sctp, from Willem de Bruijn.
8) Make TCP challenge ACKs less predictable, from Eric Dumazet.
9) Fix infinite loop in bgmac_dma_tx_add() from Florian Fainelli.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (65 commits)
packet: propagate sock_cmsg_send() error
net/mlx5e: Fix del vxlan port command buffer memset
packet: fix second argument of sock_tx_timestamp()
net: switchdev: change ageing_time type to clock_t
Update maintainer for EHEA driver.
net/mlx4_en: Add resilience in low memory systems
net/mlx4_en: Move filters cleanup to a proper location
sctp: load transport header after sk_filter
net/sched/sch_htb: clamp xstats tokens to fit into 32-bit int
net: cavium: liquidio: Avoid dma_unmap_single on uninitialized ndata
net: nb8800: Fix SKB leak in nb8800_receive()
et131x: Fix logical vs bitwise check in et131x_tx_timeout()
vlan: use a valid default mtu value for vlan over macsec
net: bgmac: Fix infinite loop in bgmac_dma_tx_add()
mlxsw: spectrum: Prevent invalid ingress buffer mapping
mlxsw: spectrum: Prevent overwrite of DCB capability fields
mlxsw: spectrum: Don't emit errors when PFC is disabled
mlxsw: spectrum: Indicate support for autonegotiation
mlxsw: spectrum: Force link training according to admin state
r8152: add MODULE_VERSION
...
Pull overlayfs fixes from Miklos Szeredi:
"This contains a fix for a potential crash/corruption issue and another
where the suid/sgid bits weren't cleared on write"
* 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: verify upper dentry in ovl_remove_and_whiteout()
ovl: Copy up underlying inode's ->i_mode to overlay inode
ovl: handle ATTR_KILL*
Merge misc fixes from Andrew Morton:
"Five fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
pps: do not crash when failed to register
tools/vm/slabinfo: fix an unintentional printf
testing/radix-tree: fix a macro expansion bug
radix-tree: fix radix_tree_iter_retry() for tagged iterators.
mm: memcontrol: fix cgroup creation failure after many small jobs
Pull intel kabylake drm fixes from Dave Airlie:
"As mentioned Intel has gathered all the Kabylake fixes from -next,
which we've enabled in 4.7 for the first time, these are pretty much
limited in scope to only affects kabylake, which is hw that isn't
shipping yet. So I'm mostly okay with it going in now.
If we don't land this, it might be a good idea to disable kabylake
support in 4.7 before we ship"
* tag 'drm-fixes-for-v4.7-rc8-intel-kbl' of git://people.freedesktop.org/~airlied/linux: (28 commits)
drm/i915/kbl: Introduce the first official DMC for Kabylake.
drm/i915: Introduce Kabypoint PCH for Kabylake H/DT.
drm/i915/gen9: implement WaConextSwitchWithConcurrentTLBInvalidate
drm/i915/gen9: Add WaFbcHighMemBwCorruptionAvoidance
drm/i195/fbc: Add WaFbcNukeOnHostModify
drm/i915/gen9: Add WaFbcWakeMemOn
drm/i915/gen9: Add WaFbcTurnOffFbcWatermark
drm/i915/kbl: Add WaClearSlmSpaceAtContextSwitch
drm/i915/gen9: Add WaEnableChickenDCPR
drm/i915/kbl: Add WaDisableSbeCacheDispatchPortSharing
drm/i915/kbl: Add WaDisableGafsUnitClkGating
drm/i915/kbl: Add WaForGAMHang
drm/i915: Add WaInsertDummyPushConstP for bxt and kbl
drm/i915/kbl: Add WaDisableDynamicCreditSharing
drm/i915/kbl: Add WaDisableGamClockGating
drm/i915/gen9: Enable must set chicken bits in config0 reg
drm/i915/kbl: Add WaDisableLSQCROPERFforOCL
drm/i915/kbl: Add WaDisableSDEUnitClockGating
drm/i915/kbl: Add WaDisableFenceDestinationToSLM for A0
drm/i915/kbl: Add WaEnableGapsTsvCreditFix
...
Pull drm fixes from Dave Airlie:
"Two i915 regression fixes.
Intel have submitted some Kabylake fixes I'll send separately, since
this is the first kernel with kabylake support and they don't go much
outside that area I think they should be fine"
* tag 'drm-fixes-for-v4.7-rc8-intel' of git://people.freedesktop.org/~airlied/linux:
drm/i915: add missing condition for committing planes on crtc
drm/i915: Treat eDP as always connected, again
A handful of fixes before final release:
Marvell Armada:
- One to fix a typo in the devicetree specifying memory ranges for the
crypto engine
- Two to deal with marking PCI and device-memory as strongly ordered to
avoid hardware deadlocks, in particular when enabling above crypto driver.
- Compile fix for PM
Allwinner:
- DT clock fixes to deal with u-boot-enabled framebuffer (simplefb).
- Make R8 (C.H.I.P. SoC) inherit system compatibility from A13 to
make clocks register proper.
Tegra:
- Fix SD card voltage setting on the Tegra3 Beaver dev board
Misc:
- Two maintainers updates for STM32 and STi platforms.
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"A handful of fixes before final release:
Marvell Armada:
- One to fix a typo in the devicetree specifying memory ranges for
the crypto engine
- Two to deal with marking PCI and device-memory as strongly ordered
to avoid hardware deadlocks, in particular when enabling above
crypto driver.
- Compile fix for PM
Allwinner:
- DT clock fixes to deal with u-boot-enabled framebuffer (simplefb).
- Make R8 (C.H.I.P. SoC) inherit system compatibility from A13 to
make clocks register proper.
Tegra:
- Fix SD card voltage setting on the Tegra3 Beaver dev board
Misc:
- Two maintainers updates for STM32 and STi platforms"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: tegra: beaver: Allow SD card voltage to be changed
MAINTAINERS: update STi maintainer list
MAINTAINERS: update STM32 maintainers list
ARM: mvebu: compile pm code conditionally
ARM: dts: sun7i: Fix pll3x2 and pll7x2 not having a parent clock
ARM: dts: sunxi: Add pll3 to simplefb nodes clocks lists
ARM: dts: armada-38x: fix MBUS_ID for crypto SRAM on Armada 385 Linksys
ARM: mvebu: map PCI I/O regions strongly ordered
ARM: mvebu: fix HW I/O coherency related deadlocks
ARM: sunxi/dt: make the CHIP inherit from allwinner,sun5i-a13
Pull crypto fixes from Herbert Xu:
"This fixes a sporadic build failure in the qat driver as well as a
memory corruption bug in rsa-pkcs1pad"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: rsa-pkcs1pad - fix rsa-pkcs1pad request struct
crypto: qat - make qat_asym_algs.o depend on asn1 headers
Pull key handling fixes from James Morris:
"Quoting David Howells:
Here are three miscellaneous fixes:
(1) Fix a panic in some debugging code in PKCS#7. This can only
happen by explicitly inserting a #define DEBUG into the code.
(2) Fix the calculation of the digest length in the PE file parser.
This causes a failure where there should be a success.
(3) Fix the case where an X.509 cert can be added as an asymmetric key
to a trusted keyring with no trust restriction if no AKID is
supplied.
Bugs (1) and (2) aren't particularly problematic, but (3) allows a
security check to be bypassed. Happily, this is a recent regression
and never made it into a released kernel"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
KEYS: Fix for erroneous trust of incorrectly signed X.509 certs
pefile: Fix the failure of calculation for digest
PKCS#7: Fix panic when referring to the empty AKID when DEBUG defined
Pull input fixes from Dmitry Torokhov:
"A few more fixes for the input subsystem:
- restore naming for tsc2005 touchscreens as some userspace match on it
- fix out of bound access in legacy keyboard driver
- fixup in RMI4 driver
Everything is tagged for stable as well"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: tsc200x - report proper input_dev name
tty/vt/keyboard: fix OOB access in do_compute_shiftstate()
Input: synaptics-rmi4 - fix maximum size check for F12 control register 8
Pull libnvdimm fix from Dan Williams:
"This contains a regression fix for a problem that was introduced in
v4.7-rc6.
In 4.7-rc1 we introduced auto-probing for the ACPI DSM (device-
specific-method) format that the platform firmware implements for
nvdimm devices. We initially fixed a regression in probing the QEMU
DSM implementation by making acpi_check_dsm() tolerant of the way QEMU
reports the "0 DSMs supported" condition.
However, that broke HPE platforms since that tolerance caused the
driver to mistakenly match the 1-zero-byte response those platforms
give to "unknown" commands. Instead, we simply make the driver
tolerant of not finding any supported DSMs. This has been tested to
work with both QEMU and HPE platforms.
This commit has appeared in a -next release with no reported issues"
* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
nfit: make DIMM DSMs optional
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Merge tag 'gpio-v4.7-6' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fix from Linus Walleij:
"Compile problem fix for Tegra,
Sorry to send this in the last minute but Ingo says this build failure
is very prominent so I'm not going to wait for v4.7 before sending it.
It is a case of COMPILE_TEST causing more problems than it solves and
I'm already swearing about me shooting myself in the foot with that
gun :("
* tag 'gpio-v4.7-6' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: tegra: don't auto-enable for COMPILE_TEST
drivers, and one bug in a sunxi clk driver introduced in the 4.7 merge
window.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Michael Turquette:
"Fix a bug in the at91 clk driver, two compile time warnings in sunxi
clk drivers, and one bug in a sunxi clk driver introduced in the 4.7
merge window"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: at91: fix clk_programmable_set_parent()
clk: sunxi: remove unused variable
clk: sunxi: display: Add per-clock flags
clk: sunxi: tcon-ch1: Do not return a negative error in get_parent
Pull libata fix from Tejun Heo:
"Another fallout from max_sectors bump a couple years ago. The lite-on
optical drive times out on large requests"
* 'for-4.7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
libata: LITE-ON CX1-JB256-HP needs lower max_sectors
Now one more regression fix in addition to the previous pull request:
two changes in the core part are for unusual error paths, while the
rest are the regular HD-audio fixes and one USB-audio regression fix.
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Merge tag 'sound-4.7-fix2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"No surprise, just a few small fixes: a couple of changes are seen in
the core part, and both of them are rather for unusual error paths.
The rest are the regular HD-audio fixes and one USB-audio regression
fix"
* tag 'sound-4.7-fix2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: usb-audio: Fix quirks code is not called
ALSA: hda: add AMD Stoney PCI ID with proper driver caps
ALSA: hda - fix use-after-free after module unload
ALSA: pcm: Free chmap at PCM free callback, too
ALSA: ctl: Stop notification after disconnection
ALSA: hda/realtek - add new pin definition in alc225 pin quirk table
Pull NVMe fix from Jens Axboe:
"Late addition here, it's basically a revert of a patch that was added
in this merge window, but has proven to cause problems.
This is swapping out the RCU based namespace protection with a good
old mutex instead"
* 'for-linus' of git://git.kernel.dk/linux-block:
nvme: Remove RCU namespace protection
With this command sequence:
modprobe plip
modprobe pps_parport
rmmod pps_parport
the partport_pps modules causes this crash:
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: parport_detach+0x1d/0x60 [pps_parport]
Oops: 0000 [#1] SMP
...
Call Trace:
parport_unregister_driver+0x65/0xc0 [parport]
SyS_delete_module+0x187/0x210
The sequence that builds up to this is:
1) plip is loaded and takes the parport device for exclusive use:
plip0: Parallel port at 0x378, using IRQ 7.
2) pps_parport then fails to grab the device:
pps_parport: parallel port PPS client
parport0: cannot grant exclusive access for device pps_parport
pps_parport: couldn't register with parport0
3) rmmod of pps_parport is then killed because it tries to access
pardev->name, but pardev (taken from port->cad) is NULL.
So add a check for NULL in the test there too.
Link: http://lkml.kernel.org/r/20160714115245.12651-1-jslaby@suse.cz
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Rodolfo Giometti <giometti@enneenne.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The curly braces are missing here so we print stuff unintentionally.
Fixes: 9da4714a2d ('slub: slabinfo update for cmpxchg handling')
Link: http://lkml.kernel.org/r/20160715211243.GE19522@mwanda
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Colin Ian King <colin.king@canonical.com>
Cc: Laura Abbott <labbott@fedoraproject.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
There are no parentheses around this macro and it causes a problem when
we do:
index = rand() % THRASH_SIZE;
Link: http://lkml.kernel.org/r/20160715210953.GC19522@mwanda
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
radix_tree_iter_retry() resets slot to NULL, but it doesn't reset tags.
Then NULL slot and non-zero iter.tags passed to radix_tree_next_slot()
leading to crash:
RIP: radix_tree_next_slot include/linux/radix-tree.h:473
find_get_pages_tag+0x334/0x930 mm/filemap.c:1452
....
Call Trace:
pagevec_lookup_tag+0x3a/0x80 mm/swap.c:960
mpage_prepare_extent_to_map+0x321/0xa90 fs/ext4/inode.c:2516
ext4_writepages+0x10be/0x2b20 fs/ext4/inode.c:2736
do_writepages+0x97/0x100 mm/page-writeback.c:2364
__filemap_fdatawrite_range+0x248/0x2e0 mm/filemap.c:300
filemap_write_and_wait_range+0x121/0x1b0 mm/filemap.c:490
ext4_sync_file+0x34d/0xdb0 fs/ext4/fsync.c:115
vfs_fsync_range+0x10a/0x250 fs/sync.c:195
vfs_fsync fs/sync.c:209
do_fsync+0x42/0x70 fs/sync.c:219
SYSC_fdatasync fs/sync.c:232
SyS_fdatasync+0x19/0x20 fs/sync.c:230
entry_SYSCALL_64_fastpath+0x23/0xc1 arch/x86/entry/entry_64.S:207
We must reset iterator's tags to bail out from radix_tree_next_slot()
and go to the slow-path in radix_tree_next_chunk().
Fixes: 46437f9a55 ("radix-tree: fix race in gang lookup")
Link: http://lkml.kernel.org/r/1468495196-10604-1-git-send-email-aryabinin@virtuozzo.com
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Acked-by: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Matthew Wilcox <willy@linux.intel.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
