commit 904cdbd41d749a476863a0ca41f6f396774f26e4 upstream.
Now, we capture a data corruption problem on ext4 while we're truncating
an extent index block. Imaging that if we are revoking a buffer which
has been journaled by the committing transaction, the buffer's jbddirty
flag will not be cleared in jbd2_journal_forget(), so the commit code
will set the buffer dirty flag again after refile the buffer.
fsx kjournald2
jbd2_journal_commit_transaction
jbd2_journal_revoke commit phase 1~5...
jbd2_journal_forget
belongs to older transaction commit phase 6
jbddirty not clear __jbd2_journal_refile_buffer
__jbd2_journal_unfile_buffer
test_clear_buffer_jbddirty
mark_buffer_dirty
Finally, if the freed extent index block was allocated again as data
block by some other files, it may corrupt the file data after writing
cached pages later, such as during unmount time. (In general,
clean_bdev_aliases() related helpers should be invoked after
re-allocation to prevent the above corruption, but unfortunately we
missed it when zeroout the head of extra extent blocks in
ext4_ext_handle_unwritten_extents()).
This patch mark buffer as freed and set j_next_transaction to the new
transaction when it already belongs to the committing transaction in
jbd2_journal_forget(), so that commit code knows it should clear dirty
bits when it is done with the buffer.
This problem can be reproduced by xfstests generic/455 easily with
seeds (3246 3247 3248 3249).
Signed-off-by: zhangyi (F) <yi.zhang@huawei.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
It's not needed until we start trying to modifying fields in the
journal_head which are protected by j_list_lock.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
commit 85e0c4e89c1b864e763c4e3bb15d0b6d501ad5d9 upstream.
This updates the jbd2 superblock unnecessarily, and on an abort we
shouldn't truncate the log.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
commit e09463f220ca9a1a1ecfda84fcda658f99a1f12a upstream.
Do not set the b_modified flag in block's journal head should not
until after we're sure that jbd2_journal_dirty_metadat() will not
abort with an error due to there not being enough space reserved in
the jbd2 handle.
Otherwise, future attempts to modify the buffer may lead a large
number of spurious errors and warnings.
This addresses CVE-2018-10883.
https://bugzilla.kernel.org/show_bug.cgi?id=200071
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
[bwh: Backported to 3.16: Drop the added logging statement, as it's on
a code path that doesn't exist here]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
commit c0a2ad9b50dd80eeccd73d9ff962234590d5ec93 upstream.
On umount path, jbd2_journal_destroy() writes latest transaction ID
(->j_tail_sequence) to be used at next mount.
The bug is that ->j_tail_sequence is not holding latest transaction ID
in some cases. So, at next mount, there is chance to conflict with
remaining (not overwritten yet) transactions.
mount (id=10)
write transaction (id=11)
write transaction (id=12)
umount (id=10) <= the bug doesn't write latest ID
mount (id=10)
write transaction (id=11)
crash
mount
[recovery process]
transaction (id=11)
transaction (id=12) <= valid transaction ID, but old commit
must not replay
Like above, this bug become the cause of recovery failure, or FS
corruption.
So why ->j_tail_sequence doesn't point latest ID?
Because if checkpoint transactions was reclaimed by memory pressure
(i.e. bdev_try_to_free_page()), then ->j_tail_sequence is not updated.
(And another case is, __jbd2_journal_clean_checkpoint_list() is called
with empty transaction.)
So in above cases, ->j_tail_sequence is not pointing latest
transaction ID at umount path. Plus, REQ_FLUSH for checkpoint is not
done too.
So, to fix this problem with minimum changes, this patch updates
->j_tail_sequence, and issue REQ_FLUSH. (With more complex changes,
some optimizations would be possible to avoid unnecessary REQ_FLUSH
for example though.)
BTW,
journal->j_tail_sequence =
++journal->j_transaction_sequence;
Increment of ->j_transaction_sequence seems to be unnecessary, but
ext3 does this.
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
Signed-off-by: Willy Tarreau <w@1wt.eu>
commit bc23f0c8d7ccd8d924c4e70ce311288cb3e61ea8 upstream.
Ted and Namjae have reported that truncated pages don't get timely
reclaimed after being truncated in data=journal mode. The following test
triggers the issue easily:
for (i = 0; i < 1000; i++) {
pwrite(fd, buf, 1024*1024, 0);
fsync(fd);
fsync(fd);
ftruncate(fd, 0);
}
The reason is that journal_unmap_buffer() finds that truncated buffers
are not journalled (jh->b_transaction == NULL), they are part of
checkpoint list of a transaction (jh->b_cp_transaction != NULL) and have
been already written out (!buffer_dirty(bh)). We clean such buffers but
we leave them in the checkpoint list. Since checkpoint transaction holds
a reference to the journal head, these buffers cannot be released until
the checkpoint transaction is cleaned up. And at that point we don't
call release_buffer_page() anymore so pages detached from mapping are
lingering in the system waiting for reclaim to find them and free them.
Fix the problem by removing buffers from transaction checkpoint lists
when journal_unmap_buffer() finds out they don't have to be there
anymore.
Reported-and-tested-by: Namjae Jeon <namjae.jeon@samsung.com>
Fixes: de1b794130
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 4327ba52afd03fc4b5afa0ee1d774c9c5b0e85c5 upstream.
If a EXT4 filesystem utilizes JBD2 journaling and an error occurs, the
journaling will be aborted first and the error number will be recorded
into JBD2 superblock and, finally, the system will enter into the
panic state in "errors=panic" option. But, in the rare case, this
sequence is little twisted like the below figure and it will happen
that the system enters into panic state, which means the system reset
in mobile environment, before completion of recording an error in the
journal superblock. In this case, e2fsck cannot recognize that the
filesystem failure occurred in the previous run and the corruption
wouldn't be fixed.
Task A Task B
ext4_handle_error()
-> jbd2_journal_abort()
-> __journal_abort_soft()
-> __jbd2_journal_abort_hard()
| -> journal->j_flags |= JBD2_ABORT;
|
| __ext4_abort()
| -> jbd2_journal_abort()
| | -> __journal_abort_soft()
| | -> if (journal->j_flags & JBD2_ABORT)
| | return;
| -> panic()
|
-> jbd2_journal_update_sb_errno()
Tested-by: Hobin Woo <hobin.woo@samsung.com>
Signed-off-by: Daeho Jeong <daeho.jeong@samsung.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 6f6a6fda294506dfe0e3e0a253bb2d2923f28f0a upstream.
If updating journal superblock fails after journal data has been
flushed, the error is omitted and this will mislead the caller as a
normal case. In ocfs2, the checkpoint will be treated successfully
and the other node can get the lock to update. Since the sb_start is
still pointing to the old log block, it will rewrite the journal data
during journal recovery by the other node. Thus the new updates will
be overwritten and ocfs2 corrupts. So in above case we have to return
the error, and ocfs2_commit_cache will take care of the error and
prevent the other node to do update first. And only after recovering
journal it can do the new updates.
The issue discussion mail can be found at:
https://oss.oracle.com/pipermail/ocfs2-devel/2015-June/010856.htmlhttp://comments.gmane.org/gmane.comp.file-systems.ext4/48841
[ Fixed bug in patch which allowed a non-negative error return from
jbd2_cleanup_journal_tail() to leak out of jbd2_fjournal_flush(); this
was causing xfstests ext4/306 to fail. -- Ted ]
Reported-by: Yiwen Jiang <jiangyiwen@huawei.com>
Signed-off-by: Joseph Qi <joseph.qi@huawei.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Tested-by: Yiwen Jiang <jiangyiwen@huawei.com>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge commit 'v3.10.67' into msm-3.10
This merge brings us up to date with upstream kernel.org tag v3.10.67.
It also contains changes to allow forbidden warnings introduced in
the commit 'core, nfqueue, openvswitch: Orphan frags in skb_zerocopy
and handle errors'. Once upstream has corrected these warnings, the
changes to scripts/gcc-wrapper.py, in this commit, can be reverted.
* commit 'v3.10.67' (915 commits)
Linux 3.10.67
md/raid5: fetch_block must fetch all the blocks handle_stripe_dirtying wants.
ext4: fix warning in ext4_da_update_reserve_space()
quota: provide interface for readding allocated space into reserved space
crypto: add missing crypto module aliases
crypto: include crypto- module prefix in template
crypto: prefix module autoloading with "crypto-"
drbd: merge_bvec_fn: properly remap bvm->bi_bdev
Revert "swiotlb-xen: pass dev_addr to swiotlb_tbl_unmap_single"
ipvs: uninitialized data with IP_VS_IPV6
KEYS: close race between key lookup and freeing
sata_dwc_460ex: fix resource leak on error path
x86/asm/traps: Disable tracing and kprobes in fixup_bad_iret and sync_regs
x86, tls: Interpret an all-zero struct user_desc as "no segment"
x86, tls, ldt: Stop checking lm in LDT_empty
x86/tsc: Change Fast TSC calibration failed from error to info
x86, hyperv: Mark the Hyper-V clocksource as being continuous
clocksource: exynos_mct: Fix bitmask regression for exynos4_mct_write
can: dev: fix crtlmode_supported check
bus: mvebu-mbus: fix support of MBus window 13
ARM: dts: imx25: Fix PWM "per" clocks
time: adjtimex: Validate the ADJ_FREQUENCY values
time: settimeofday: Validate the values of tv from user
dm cache: share cache-metadata object across inactive and active DM tables
ipr: wait for aborted command responses
drm/i915: Fix mutex->owner inspection race under DEBUG_MUTEXES
scripts/recordmcount.pl: There is no -m32 gcc option on Super-H anymore
ALSA: usb-audio: Add mic volume fix quirk for Logitech Webcam C210
libata: prevent HSM state change race between ISR and PIO
pinctrl: Fix two deadlocks
gpio: sysfs: fix gpio device-attribute leak
gpio: sysfs: fix gpio-chip device-attribute leak
Linux 3.10.66
s390/3215: fix tty output containing tabs
s390/3215: fix hanging console issue
fsnotify: next_i is freed during fsnotify_unmount_inodes.
netfilter: ipset: small potential read beyond the end of buffer
mmc: sdhci: Fix sleep in atomic after inserting SD card
LOCKD: Fix a race when initialising nlmsvc_timeout
x86, um: actually mark system call tables readonly
um: Skip futex_atomic_cmpxchg_inatomic() test
decompress_bunzip2: off by one in get_next_block()
ARM: shmobile: sh73a0 legacy: Set .control_parent for all irqpin instances
ARM: omap5/dra7xx: Fix frequency typos
ARM: clk-imx6q: fix video divider for rev T0 1.0
ARM: imx6q: drop unnecessary semicolon
ARM: dts: imx25: Fix the SPI1 clocks
Input: I8042 - add Acer Aspire 7738 to the nomux list
Input: i8042 - reset keyboard to fix Elantech touchpad detection
can: kvaser_usb: Don't send a RESET_CHIP for non-existing channels
can: kvaser_usb: Reset all URB tx contexts upon channel close
can: kvaser_usb: Don't free packets when tight on URBs
USB: keyspan: fix null-deref at probe
USB: cp210x: add IDs for CEL USB sticks and MeshWorks devices
USB: cp210x: fix ID for production CEL MeshConnect USB Stick
usb: dwc3: gadget: Stop TRB preparation after limit is reached
usb: dwc3: gadget: Fix TRB preparation during SG
OHCI: add a quirk for ULi M5237 blocking on reset
gpiolib: of: Correct error handling in of_get_named_gpiod_flags
NFSv4.1: Fix client id trunking on Linux
ftrace/jprobes/x86: Fix conflict between jprobes and function graph tracing
vfio-pci: Fix the check on pci device type in vfio_pci_probe()
uvcvideo: Fix destruction order in uvc_delete()
smiapp: Take mutex during PLL update in sensor initialisation
af9005: fix kernel panic on init if compiled without IR
smiapp-pll: Correct clock debug prints
video/logo: prevent use of logos after they have been freed
storvsc: ring buffer failures may result in I/O freeze
iscsi-target: Fail connection on short sendmsg writes
hp_accel: Add support for HP ZBook 15
cfg80211: Fix 160 MHz channels with 80+80 and 160 MHz drivers
ARC: [nsimosci] move peripherals to match model to FPGA
drm/i915: Force the CS stall for invalidate flushes
drm/i915: Invalidate media caches on gen7
drm/radeon: properly filter DP1.2 4k modes on non-DP1.2 hw
drm/radeon: check the right ring in radeon_evict_flags()
drm/vmwgfx: Fix fence event code
enic: fix rx skb checksum
alx: fix alx_poll()
tcp: Do not apply TSO segment limit to non-TSO packets
tg3: tg3_disable_ints using uninitialized mailbox value to disable interrupts
netlink: Don't reorder loads/stores before marking mmap netlink frame as available
netlink: Always copy on mmap TX.
Linux 3.10.65
mm: Don't count the stack guard page towards RLIMIT_STACK
mm: propagate error from stack expansion even for guard page
mm, vmscan: prevent kswapd livelock due to pfmemalloc-throttled process being killed
perf session: Do not fail on processing out of order event
perf: Fix events installation during moving group
perf/x86/intel/uncore: Make sure only uncore events are collected
Btrfs: don't delay inode ref updates during log replay
ARM: mvebu: disable I/O coherency on non-SMP situations on Armada 370/375/38x/XP
scripts/kernel-doc: don't eat struct members with __aligned
nilfs2: fix the nilfs_iget() vs. nilfs_new_inode() races
nfsd4: fix xdr4 inclusion of escaped char
fs: nfsd: Fix signedness bug in compare_blob
serial: samsung: wait for transfer completion before clock disable
writeback: fix a subtle race condition in I_DIRTY clearing
cdc-acm: memory leak in error case
genhd: check for int overflow in disk_expand_part_tbl()
USB: cdc-acm: check for valid interfaces
ALSA: hda - Fix wrong gpio_dir & gpio_mask hint setups for IDT/STAC codecs
ALSA: hda - using uninitialized data
ALSA: usb-audio: extend KEF X300A FU 10 tweak to Arcam rPAC
driver core: Fix unbalanced device reference in drivers_probe
x86, vdso: Use asm volatile in __getcpu
x86_64, vdso: Fix the vdso address randomization algorithm
HID: Add a new id 0x501a for Genius MousePen i608X
HID: add battery quirk for USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO keyboard
HID: roccat: potential out of bounds in pyra_sysfs_write_settings()
HID: i2c-hid: prevent buffer overflow in early IRQ
HID: i2c-hid: fix race condition reading reports
iommu/vt-d: Fix an off-by-one bug in __domain_mapping()
UBI: Fix double free after do_sync_erase()
UBI: Fix invalid vfree()
pstore-ram: Allow optional mapping with pgprot_noncached
pstore-ram: Fix hangs by using write-combine mappings
PCI: Restore detection of read-only BARs
ASoC: dwc: Ensure FIFOs are flushed to prevent channel swap
ASoC: max98090: Fix ill-defined sidetone route
ASoC: sigmadsp: Refuse to load firmware files with a non-supported version
ath5k: fix hardware queue index assignment
swiotlb-xen: pass dev_addr to swiotlb_tbl_unmap_single
can: peak_usb: fix memset() usage
can: peak_usb: fix cleanup sequence order in case of error during init
ath9k: fix BE/BK queue order
ath9k_hw: fix hardware queue allocation
ocfs2: fix journal commit deadlock
Linux 3.10.64
Btrfs: fix fs corruption on transaction abort if device supports discard
Btrfs: do not move em to modified list when unpinning
eCryptfs: Remove buggy and unnecessary write in file name decode routine
eCryptfs: Force RO mount when encrypted view is enabled
udf: Verify symlink size before loading it
exit: pidns: alloc_pid() leaks pid_namespace if child_reaper is exiting
ncpfs: return proper error from NCP_IOC_SETROOT ioctl
crypto: af_alg - fix backlog handling
userns: Unbreak the unprivileged remount tests
userns: Allow setting gid_maps without privilege when setgroups is disabled
userns: Add a knob to disable setgroups on a per user namespace basis
userns: Rename id_map_mutex to userns_state_mutex
userns: Only allow the creator of the userns unprivileged mappings
userns: Check euid no fsuid when establishing an unprivileged uid mapping
userns: Don't allow unprivileged creation of gid mappings
userns: Don't allow setgroups until a gid mapping has been setablished
userns: Document what the invariant required for safe unprivileged mappings.
groups: Consolidate the setgroups permission checks
umount: Disallow unprivileged mount force
mnt: Update unprivileged remount test
mnt: Implicitly add MNT_NODEV on remount when it was implicitly added by mount
mac80211: free management frame keys when removing station
mac80211: fix multicast LED blinking and counter
KEYS: Fix stale key registration at error path
isofs: Fix unchecked printing of ER records
x86/tls: Don't validate lm in set_thread_area() after all
dm space map metadata: fix sm_bootstrap_get_nr_blocks()
dm bufio: fix memleak when using a dm_buffer's inline bio
nfs41: fix nfs4_proc_layoutget error handling
megaraid_sas: corrected return of wait_event from abort frame path
mmc: block: add newline to sysfs display of force_ro
mfd: tc6393xb: Fail ohci suspend if full state restore is required
md/bitmap: always wait for writes on unplug.
x86, kvm: Clear paravirt_enabled on KVM guests for espfix32's benefit
x86_64, switch_to(): Load TLS descriptors before switching DS and ES
x86/tls: Disallow unusual TLS segments
x86/tls: Validate TLS entries to protect espfix
isofs: Fix infinite looping over CE entries
Linux 3.10.63
ALSA: usb-audio: Don't resubmit pending URBs at MIDI error recovery
powerpc: 32 bit getcpu VDSO function uses 64 bit instructions
ARM: sched_clock: Load cycle count after epoch stabilizes
igb: bring link up when PHY is powered up
ext2: Fix oops in ext2_get_block() called from ext2_quota_write()
nEPT: Nested INVEPT
net: sctp: use MAX_HEADER for headroom reserve in output path
net: mvneta: fix Tx interrupt delay
rtnetlink: release net refcnt on error in do_setlink()
net/mlx4_core: Limit count field to 24 bits in qp_alloc_res
tg3: fix ring init when there are more TX than RX channels
ipv6: gre: fix wrong skb->protocol in WCCP
sata_fsl: fix error handling of irq_of_parse_and_map
ahci: disable MSI on SAMSUNG 0xa800 SSD
AHCI: Add DeviceIDs for Sunrise Point-LP SATA controller
media: smiapp: Only some selection targets are settable
drm/i915: Unlock panel even when LVDS is disabled
drm/radeon: kernel panic in drm_calc_vbltimestamp_from_scanoutpos with 3.18.0-rc6
i2c: davinci: generate STP always when NACK is received
i2c: omap: fix i207 errata handling
i2c: omap: fix NACK and Arbitration Lost irq handling
xen-netfront: Remove BUGs on paged skb data which crosses a page boundary
mm: fix swapoff hang after page migration and fork
mm: frontswap: invalidate expired data on a dup-store failure
Linux 3.10.62
nfsd: Fix ACL null pointer deref
powerpc/powernv: Honor the generic "no_64bit_msi" flag
bnx2fc: do not add shared skbs to the fcoe_rx_list
nfsd4: fix leak of inode reference on delegation failure
nfsd: Fix slot wake up race in the nfsv4.1 callback code
rt2x00: do not align payload on modern H/W
can: dev: avoid calling kfree_skb() from interrupt context
spi: dw: Fix dynamic speed change.
iser-target: Handle DEVICE_REMOVAL event on network portal listener correctly
target: Don't call TFO->write_pending if data_length == 0
srp-target: Retry when QP creation fails with ENOMEM
Input: xpad - use proper endpoint type
ARM: 8222/1: mvebu: enable strex backoff delay
ARM: 8216/1: xscale: correct auxiliary register in suspend/resume
ALSA: usb-audio: Add ctrl message delay quirk for Marantz/Denon devices
can: esd_usb2: fix memory leak on disconnect
USB: xhci: don't start a halted endpoint before its new dequeue is set
usb-quirks: Add reset-resume quirk for MS Wireless Laser Mouse 6000
usb: serial: ftdi_sio: add PIDs for Matrix Orbital products
USB: serial: cp210x: add IDs for CEL MeshConnect USB Stick
USB: keyspan: fix tty line-status reporting
USB: keyspan: fix overrun-error reporting
USB: ssu100: fix overrun-error reporting
iio: Fix IIO_EVENT_CODE_EXTRACT_DIR bit mask
powerpc/pseries: Fix endiannes issue in RTAS call from xmon
powerpc/pseries: Honor the generic "no_64bit_msi" flag
of/base: Fix PowerPC address parsing hack
ASoC: wm_adsp: Avoid attempt to free buffers that might still be in use
ASoC: sgtl5000: Fix SMALL_POP bit definition
PCI/MSI: Add device flag indicating that 64-bit MSIs don't work
ipx: fix locking regression in ipx_sendmsg and ipx_recvmsg
pptp: fix stack info leak in pptp_getname()
qmi_wwan: Add support for HP lt4112 LTE/HSPA+ Gobi 4G Modem
ieee802154: fix error handling in ieee802154fake_probe()
ipv4: Fix incorrect error code when adding an unreachable route
inetdevice: fixed signed integer overflow
sparc64: Fix constraints on swab helpers.
uprobes, x86: Fix _TIF_UPROBE vs _TIF_NOTIFY_RESUME
x86, mm: Set NX across entire PMD at boot
x86: Require exact match for 'noxsave' command line option
x86_64, traps: Rework bad_iret
x86_64, traps: Stop using IST for #SS
x86_64, traps: Fix the espfix64 #DF fixup and rewrite it in C
MIPS: Loongson: Make platform serial setup always built-in.
MIPS: oprofile: Fix backtrace on 64-bit kernel
Linux 3.10.61
mm: memcg: handle non-error OOM situations more gracefully
mm: memcg: do not trap chargers with full callstack on OOM
mm: memcg: rework and document OOM waiting and wakeup
mm: memcg: enable memcg OOM killer only for user faults
x86: finish user fault error path with fatal signal
arch: mm: pass userspace fault flag to generic fault handler
arch: mm: do not invoke OOM killer on kernel fault OOM
arch: mm: remove obsolete init OOM protection
mm: invoke oom-killer from remaining unconverted page fault handlers
net: sctp: fix skb_over_panic when receiving malformed ASCONF chunks
net: sctp: fix panic on duplicate ASCONF chunks
net: sctp: fix remote memory pressure from excessive queueing
KVM: x86: Don't report guest userspace emulation error to userspace
SCSI: hpsa: fix a race in cmd_free/scsi_done
net/mlx4_en: Fix BlueFlame race
ARM: Correct BUG() assembly to ensure it is endian-agnostic
perf/x86/intel: Use proper dTLB-load-misses event on IvyBridge
mei: bus: fix possible boundaries violation
perf: Handle compat ioctl
MIPS: Fix forgotten preempt_enable() when CPU has inclusive pcaches
dell-wmi: Fix access out of memory
ARM: probes: fix instruction fetch order with <asm/opcodes.h>
br: fix use of ->rx_handler_data in code executed on non-rx_handler path
netfilter: nf_nat: fix oops on netns removal
netfilter: xt_bpf: add mising opaque struct sk_filter definition
netfilter: nf_log: release skbuff on nlmsg put failure
netfilter: nfnetlink_log: fix maximum packet length logged to userspace
netfilter: nf_log: account for size of NLMSG_DONE attribute
ipc: always handle a new value of auto_msgmni
clocksource: Remove "weak" from clocksource_default_clock() declaration
kgdb: Remove "weak" from kgdb_arch_pc() declaration
media: ttusb-dec: buffer overflow in ioctl
NFSv4: Fix races between nfs_remove_bad_delegation() and delegation return
nfs: Fix use of uninitialized variable in nfs_getattr()
NFS: Don't try to reclaim delegation open state if recovery failed
NFSv4: Ensure that we remove NFSv4.0 delegations when state has expired
Input: alps - allow up to 2 invalid packets without resetting device
Input: alps - ignore potential bare packets when device is out of sync
dm raid: ensure superblock's size matches device's logical block size
dm btree: fix a recursion depth bug in btree walking code
block: Fix computation of merged request priority
parisc: Use compat layer for msgctl, shmat, shmctl and semtimedop syscalls
scsi: only re-lock door after EH on devices that were reset
nfs: fix pnfs direct write memory leak
firewire: cdev: prevent kernel stack leaking into ioctl arguments
arm64: __clear_user: handle exceptions on strb
ARM: 8198/1: make kuser helpers depend on MMU
drm/radeon: add missing crtc unlock when setting up the MC
mac80211: fix use-after-free in defragmentation
macvtap: Fix csum_start when VLAN tags are present
iwlwifi: configure the LTR
libceph: do not crash on large auth tickets
xtensa: re-wire umount syscall to sys_oldumount
ALSA: usb-audio: Fix memory leak in FTU quirk
ahci: disable MSI instead of NCQ on Samsung pci-e SSDs on macbooks
ahci: Add Device IDs for Intel Sunrise Point PCH
audit: keep inode pinned
x86, x32, audit: Fix x32's AUDIT_ARCH wrt audit
sparc32: Implement xchg and atomic_xchg using ATOMIC_HASH locks
sparc64: Do irq_{enter,exit}() around generic_smp_call_function*().
sparc64: Fix crashes in schizo_pcierr_intr_other().
sunvdc: don't call VD_OP_GET_VTOC
vio: fix reuse of vio_dring slot
sunvdc: limit each sg segment to a page
sunvdc: compute vdisk geometry from capacity
sunvdc: add cdrom and v1.1 protocol support
net: sctp: fix memory leak in auth key management
net: sctp: fix NULL pointer dereference in af->from_addr_param on malformed packet
gre6: Move the setting of dev->iflink into the ndo_init functions.
ip6_tunnel: Use ip6_tnl_dev_init as the ndo_init function.
Linux 3.10.60
libceph: ceph-msgr workqueue needs a resque worker
Btrfs: fix kfree on list_head in btrfs_lookup_csums_range error cleanup
of: Fix overflow bug in string property parsing functions
sysfs: driver core: Fix glue dir race condition by gdp_mutex
i2c: at91: don't account as iowait
acer-wmi: Add acpi_backlight=video quirk for the Acer KAV80
rbd: Fix error recovery in rbd_obj_read_sync()
drm/radeon: remove invalid pci id
usb: gadget: udc: core: fix kernel oops with soft-connect
usb: gadget: function: acm: make f_acm pass USB20CV Chapter9
usb: dwc3: gadget: fix set_halt() bug with pending transfers
crypto: algif - avoid excessive use of socket buffer in skcipher
mm: Remove false WARN_ON from pagecache_isize_extended()
x86, apic: Handle a bad TSC more gracefully
posix-timers: Fix stack info leak in timer_create()
mac80211: fix typo in starting baserate for rts_cts_rate_idx
PM / Sleep: fix recovery during resuming from hibernation
tty: Fix high cpu load if tty is unreleaseable
quota: Properly return errors from dquot_writeback_dquots()
ext3: Don't check quota format when there are no quota files
nfsd4: fix crash on unknown operation number
cpc925_edac: Report UE events properly
e7xxx_edac: Report CE events properly
i3200_edac: Report CE events properly
i82860_edac: Report CE events properly
scsi: Fix error handling in SCSI_IOCTL_SEND_COMMAND
lib/bitmap.c: fix undefined shift in __bitmap_shift_{left|right}()
cgroup/kmemleak: add kmemleak_free() for cgroup deallocations.
usb: Do not allow usb_alloc_streams on unconfigured devices
USB: opticon: fix non-atomic allocation in write path
usb-storage: handle a skipped data phase
spi: pxa2xx: toggle clocks on suspend if not disabled by runtime PM
spi: pl022: Fix incorrect dma_unmap_sg
usb: dwc3: gadget: Properly initialize LINK TRB
wireless: rt2x00: add new rt2800usb device
USB: option: add Haier CE81B CDMA modem
usb: option: add support for Telit LE910
USB: cdc-acm: only raise DTR on transitions from B0
USB: cdc-acm: add device id for GW Instek AFG-2225
usb: serial: ftdi_sio: add "bricked" FTDI device PID
usb: serial: ftdi_sio: add Awinda Station and Dongle products
USB: serial: cp210x: add Silicon Labs 358x VID and PID
serial: Fix divide-by-zero fault in uart_get_divisor()
staging:iio:ade7758: Remove "raw" from channel name
staging:iio:ade7758: Fix check if channels are enabled in prenable
staging:iio:ade7758: Fix NULL pointer deref when enabling buffer
staging:iio:ad5933: Drop "raw" from channel names
staging:iio:ad5933: Fix NULL pointer deref when enabling buffer
OOM, PM: OOM killed task shouldn't escape PM suspend
freezer: Do not freeze tasks killed by OOM killer
ext4: fix oops when loading block bitmap failed
cpufreq: intel_pstate: Fix setting max_perf_pct in performance policy
ext4: fix overflow when updating superblock backups after resize
ext4: check s_chksum_driver when looking for bg csum presence
ext4: fix reservation overflow in ext4_da_write_begin
ext4: add ext4_iget_normal() which is to be used for dir tree lookups
ext4: grab missed write_count for EXT4_IOC_SWAP_BOOT
ext4: don't check quota format when there are no quota files
ext4: check EA value offset when loading
jbd2: free bh when descriptor block checksum fails
MIPS: tlbex: Properly fix HUGE TLB Refill exception handler
target: Fix APTPL metadata handling for dynamic MappedLUNs
target: Fix queue full status NULL pointer for SCF_TRANSPORT_TASK_SENSE
qla_target: don't delete changed nacls
ARC: Update order of registers in KGDB to match GDB 7.5
ARC: [nsimosci] Allow "headless" models to boot
KVM: x86: Emulator fixes for eip canonical checks on near branches
KVM: x86: Fix wrong masking on relative jump/call
kvm: x86: don't kill guest on unknown exit reason
KVM: x86: Check non-canonical addresses upon WRMSR
KVM: x86: Improve thread safety in pit
KVM: x86: Prevent host from panicking on shared MSR writes.
kvm: fix excessive pages un-pinning in kvm_iommu_map error path.
media: tda7432: Fix setting TDA7432_MUTE bit for TDA7432_RF register
media: ds3000: fix LNB supply voltage on Tevii S480 on initialization
media: em28xx-v4l: give back all active video buffers to the vb2 core properly on streaming stop
media: v4l2-common: fix overflow in v4l_bound_align_image()
drm/nouveau/bios: memset dcb struct to zero before parsing
drm/tilcdc: Fix the error path in tilcdc_load()
drm/ast: Fix HW cursor image
Input: i8042 - quirks for Fujitsu Lifebook A544 and Lifebook AH544
Input: i8042 - add noloop quirk for Asus X750LN
framebuffer: fix border color
modules, lock around setting of MODULE_STATE_UNFORMED
dm log userspace: fix memory leak in dm_ulog_tfr_init failure path
block: fix alignment_offset math that assumes io_min is a power-of-2
drbd: compute the end before rb_insert_augmented()
dm bufio: update last_accessed when relinking a buffer
virtio_pci: fix virtio spec compliance on restore
selinux: fix inode security list corruption
pstore: Fix duplicate {console,ftrace}-efi entries
mfd: rtsx_pcr: Fix MSI enable error handling
mnt: Prevent pivot_root from creating a loop in the mount tree
UBI: add missing kmem_cache_free() in process_pool_aeb error path
random: add and use memzero_explicit() for clearing data
crypto: more robust crypto_memneq
fix misuses of f_count() in ppp and netlink
kill wbuf_queued/wbuf_dwork_lock
ALSA: pcm: Zero-clear reserved fields of PCM status ioctl in compat mode
evm: check xattr value length and type in evm_inode_setxattr()
x86, pageattr: Prevent overflow in slow_virt_to_phys() for X86_PAE
x86_64, entry: Fix out of bounds read on sysenter
x86_64, entry: Filter RFLAGS.NT on entry from userspace
x86, flags: Rename X86_EFLAGS_BIT1 to X86_EFLAGS_FIXED
x86, fpu: shift drop_init_fpu() from save_xstate_sig() to handle_signal()
x86, fpu: __restore_xstate_sig()->math_state_restore() needs preempt_disable()
x86: Reject x32 executables if x32 ABI not supported
vfs: fix data corruption when blocksize < pagesize for mmaped data
UBIFS: fix free log space calculation
UBIFS: fix a race condition
UBIFS: remove mst_mutex
fs: Fix theoretical division by 0 in super_cache_scan().
fs: make cont_expand_zero interruptible
mmc: rtsx_pci_sdmmc: fix incorrect last byte in R2 response
libata-sff: Fix controllers with no ctl port
pata_serverworks: disable 64-KB DMA transfers on Broadcom OSB4 IDE Controller
Revert "percpu: free percpu allocation info for uniprocessor system"
lockd: Try to reconnect if statd has moved
drivers/net: macvtap and tun depend on INET
ipv4: dst_entry leak in ip_send_unicast_reply()
ax88179_178a: fix bonding failure
ipv4: fix nexthop attlen check in fib_nh_match
tracing/syscalls: Ignore numbers outside NR_syscalls' range
Linux 3.10.59
ecryptfs: avoid to access NULL pointer when write metadata in xattr
ARM: at91/PMC: don't forget to write PMC_PCDR register to disable clocks
ALSA: usb-audio: Add support for Steinberg UR22 USB interface
ALSA: emu10k1: Fix deadlock in synth voice lookup
ALSA: pcm: use the same dma mmap codepath both for arm and arm64
arm64: compat: fix compat types affecting struct compat_elf_prpsinfo
spi: dw-mid: terminate ongoing transfers at exit
kernel: add support for gcc 5
fanotify: enable close-on-exec on events' fd when requested in fanotify_init()
mm: clear __GFP_FS when PF_MEMALLOC_NOIO is set
Bluetooth: Fix issue with USB suspend in btusb driver
Bluetooth: Fix HCI H5 corrupted ack value
rt2800: correct BBP1_TX_POWER_CTRL mask
PCI: Generate uppercase hex for modalias interface class
PCI: Increase IBM ipr SAS Crocodile BARs to at least system page size
iwlwifi: Add missing PCI IDs for the 7260 series
NFSv4.1: Fix an NFSv4.1 state renewal regression
NFSv4: fix open/lock state recovery error handling
NFSv4: Fix lock recovery when CREATE_SESSION/SETCLIENTID_CONFIRM fails
lzo: check for length overrun in variable length encoding.
Revert "lzo: properly check for overruns"
Documentation: lzo: document part of the encoding
m68k: Disable/restore interrupts in hwreg_present()/hwreg_write()
Drivers: hv: vmbus: Fix a bug in vmbus_open()
Drivers: hv: vmbus: Cleanup vmbus_establish_gpadl()
Drivers: hv: vmbus: Cleanup vmbus_teardown_gpadl()
Drivers: hv: vmbus: Cleanup vmbus_post_msg()
firmware_class: make sure fw requests contain a name
qla2xxx: Use correct offset to req-q-out for reserve calculation
mptfusion: enable no_write_same for vmware scsi disks
be2iscsi: check ip buffer before copying
regmap: fix NULL pointer dereference in _regmap_write/read
regmap: debugfs: fix possbile NULL pointer dereference
spi: dw-mid: check that DMA was inited before exit
spi: dw-mid: respect 8 bit mode
x86/intel/quark: Switch off CR4.PGE so TLB flush uses CR3 instead
kvm: don't take vcpu mutex for obviously invalid vcpu ioctls
KVM: s390: unintended fallthrough for external call
kvm: x86: fix stale mmio cache bug
fs: Add a missing permission check to do_umount
Btrfs: fix race in WAIT_SYNC ioctl
Btrfs: fix build_backref_tree issue with multiple shared blocks
Btrfs: try not to ENOSPC on log replay
Linux 3.10.58
USB: cp210x: add support for Seluxit USB dongle
USB: serial: cp210x: added Ketra N1 wireless interface support
USB: Add device quirk for ASUS T100 Base Station keyboard
ipv6: reallocate addrconf router for ipv6 address when lo device up
tcp: fixing TLP's FIN recovery
sctp: handle association restarts when the socket is closed.
ip6_gre: fix flowi6_proto value in xmit path
hyperv: Fix a bug in netvsc_start_xmit()
tg3: Allow for recieve of full-size 8021AD frames
tg3: Work around HW/FW limitations with vlan encapsulated frames
l2tp: fix race while getting PMTU on PPP pseudo-wire
openvswitch: fix panic with multiple vlan headers
packet: handle too big packets for PACKET_V3
tcp: fix tcp_release_cb() to dispatch via address family for mtu_reduced()
sit: Fix ipip6_tunnel_lookup device matching criteria
myri10ge: check for DMA mapping errors
Linux 3.10.57
cpufreq: ondemand: Change the calculation of target frequency
cpufreq: Fix wrong time unit conversion
nl80211: clear skb cb before passing to netlink
drbd: fix regression 'out of mem, failed to invoke fence-peer helper'
jiffies: Fix timeval conversion to jiffies
md/raid5: disable 'DISCARD' by default due to safety concerns.
media: vb2: fix VBI/poll regression
mm: numa: Do not mark PTEs pte_numa when splitting huge pages
mm, thp: move invariant bug check out of loop in __split_huge_page_map
ring-buffer: Fix infinite spin in reading buffer
init/Kconfig: Fix HAVE_FUTEX_CMPXCHG to not break up the EXPERT menu
perf: fix perf bug in fork()
udf: Avoid infinite loop when processing indirect ICBs
Linux 3.10.56
vm_is_stack: use for_each_thread() rather then buggy while_each_thread()
oom_kill: add rcu_read_lock() into find_lock_task_mm()
oom_kill: has_intersects_mems_allowed() needs rcu_read_lock()
oom_kill: change oom_kill.c to use for_each_thread()
introduce for_each_thread() to replace the buggy while_each_thread()
kernel/fork.c:copy_process(): unify CLONE_THREAD-or-thread_group_leader code
arm: multi_v7_defconfig: Enable Zynq UART driver
ext2: Fix fs corruption in ext2_get_xip_mem()
serial: 8250_dma: check the result of TX buffer mapping
ARM: 7748/1: oabi: handle faults when loading swi instruction from userspace
netfilter: nf_conntrack: avoid large timeout for mid-stream pickup
PM / sleep: Use valid_state() for platform-dependent sleep states only
PM / sleep: Add state field to pm_states[] entries
ipvs: fix ipv6 hook registration for local replies
ipvs: Maintain all DSCP and ECN bits for ipv6 tun forwarding
ipvs: avoid netns exit crash on ip_vs_conn_drop_conntrack
md/raid1: fix_read_error should act on all non-faulty devices.
media: cx18: fix kernel oops with tda8290 tuner
Fix nasty 32-bit overflow bug in buffer i/o code.
perf kmem: Make it work again on non NUMA machines
perf: Fix a race condition in perf_remove_from_context()
alarmtimer: Lock k_itimer during timer callback
alarmtimer: Do not signal SIGEV_NONE timers
parisc: Only use -mfast-indirect-calls option for 32-bit kernel builds
powerpc/perf: Fix ABIv2 kernel backtraces
sched: Fix unreleased llc_shared_mask bit during CPU hotplug
ocfs2/dlm: do not get resource spinlock if lockres is new
nilfs2: fix data loss with mmap()
fs/notify: don't show f_handle if exportfs_encode_inode_fh failed
fsnotify/fdinfo: use named constants instead of hardcoded values
kcmp: fix standard comparison bug
Revert "mac80211: disable uAPSD if all ACs are under ACM"
usb: dwc3: core: fix ordering for PHY suspend
usb: dwc3: core: fix order of PM runtime calls
usb: host: xhci: fix compliance mode workaround
genhd: fix leftover might_sleep() in blk_free_devt()
lockd: fix rpcbind crash on lockd startup failure
rtlwifi: rtl8192cu: Add new ID
percpu: perform tlb flush after pcpu_map_pages() failure
percpu: fix pcpu_alloc_pages() failure path
percpu: free percpu allocation info for uniprocessor system
ata_piix: Add Device IDs for Intel 9 Series PCH
Input: i8042 - add nomux quirk for Avatar AVIU-145A6
Input: i8042 - add Fujitsu U574 to no_timeout dmi table
Input: atkbd - do not try 'deactivate' keyboard on any LG laptops
Input: elantech - fix detection of touchpad on ASUS s301l
Input: synaptics - add support for ForcePads
Input: serport - add compat handling for SPIOCSTYPE ioctl
dm crypt: fix access beyond the end of allocated space
block: Fix dev_t minor allocation lifetime
workqueue: apply __WQ_ORDERED to create_singlethread_workqueue()
Revert "iwlwifi: dvm: don't enable CTS to self"
SCSI: libiscsi: fix potential buffer overrun in __iscsi_conn_send_pdu
NFC: microread: Potential overflows in microread_target_discovered()
iscsi-target: Fix memory corruption in iscsit_logout_post_handler_diffcid
iscsi-target: avoid NULL pointer in iscsi_copy_param_list failure
Target/iser: Don't put isert_conn inside disconnected handler
Target/iser: Get isert_conn reference once got to connected_handler
iio:inkern: fix overwritten -EPROBE_DEFER in of_iio_channel_get_by_name
iio:magnetometer: bugfix magnetometers gain values
iio: adc: ad_sigma_delta: Fix indio_dev->trig assignment
iio: st_sensors: Fix indio_dev->trig assignment
iio: meter: ade7758: Fix indio_dev->trig assignment
iio: inv_mpu6050: Fix indio_dev->trig assignment
iio: gyro: itg3200: Fix indio_dev->trig assignment
iio:trigger: modify return value for iio_trigger_get
CIFS: Fix SMB2 readdir error handling
CIFS: Fix directory rename error
ASoC: davinci-mcasp: Correct rx format unit configuration
shmem: fix nlink for rename overwrite directory
x86 early_ioremap: Increase FIX_BTMAPS_SLOTS to 8
KVM: x86: handle idiv overflow at kvm_write_tsc
regmap: Fix handling of volatile registers for format_write() chips
ACPICA: Update to GPIO region handler interface.
MIPS: mcount: Adjust stack pointer for static trace in MIPS32
MIPS: ZBOOT: add missing <linux/string.h> include
ARM: 8165/1: alignment: don't break misaligned NEON load/store
ARM: 7897/1: kexec: Use the right ISA for relocate_new_kernel
ARM: 8133/1: use irq_set_affinity with force=false when migrating irqs
ARM: 8128/1: abort: don't clear the exclusive monitors
NFSv4: Fix another bug in the close/open_downgrade code
NFSv4: nfs4_state_manager() vs. nfs_server_remove_lists()
usb:hub set hub->change_bits when over-current happens
usb: dwc3: omap: fix ordering for runtime pm calls
USB: EHCI: unlink QHs even after the controller has stopped
USB: storage: Add quirks for Entrega/Xircom USB to SCSI converters
USB: storage: Add quirk for Ariston Technologies iConnect USB to SCSI adapter
USB: storage: Add quirk for Adaptec USBConnect 2000 USB-to-SCSI Adapter
storage: Add single-LUN quirk for Jaz USB Adapter
usb: hub: take hub->hdev reference when processing from eventlist
xhci: fix oops when xhci resumes from hibernate with hw lpm capable devices
xhci: Fix null pointer dereference if xhci initialization fails
USB: zte_ev: fix removed PIDs
USB: ftdi_sio: add support for NOVITUS Bono E thermal printer
USB: sierra: add 1199:68AA device ID
USB: sierra: avoid CDC class functions on "68A3" devices
USB: zte_ev: remove duplicate Qualcom PID
USB: zte_ev: remove duplicate Gobi PID
Revert "USB: option,zte_ev: move most ZTE CDMA devices to zte_ev"
USB: option: add VIA Telecom CDS7 chipset device id
USB: option: reduce interrupt-urb logging verbosity
USB: serial: fix potential heap buffer overflow
USB: sisusb: add device id for Magic Control USB video
USB: serial: fix potential stack buffer overflow
USB: serial: pl2303: add device id for ztek device
xtensa: fix a6 and a7 handling in fast_syscall_xtensa
xtensa: fix TLBTEMP_BASE_2 region handling in fast_second_level_miss
xtensa: fix access to THREAD_RA/THREAD_SP/THREAD_DS
xtensa: fix address checks in dma_{alloc,free}_coherent
xtensa: replace IOCTL code definitions with constants
drm/radeon: add connector quirk for fujitsu board
drm/vmwgfx: Fix a potential infinite spin waiting for fifo idle
drm/ast: AST2000 cannot be detected correctly
drm/i915: Wait for vblank before enabling the TV encoder
drm/i915: Remove bogus __init annotation from DMI callbacks
HID: logitech-dj: prevent false errors to be shown
HID: magicmouse: sanity check report size in raw_event() callback
HID: picolcd: sanity check report size in raw_event() callback
cfq-iosched: Fix wrong children_weight calculation
ALSA: pcm: fix fifo_size frame calculation
ALSA: hda - Fix invalid pin powermap without jack detection
ALSA: hda - Fix COEF setups for ALC1150 codec
ALSA: core: fix buffer overflow in snd_info_get_line()
arm64: ptrace: fix compat hardware watchpoint reporting
trace: Fix epoll hang when we race with new entries
i2c: at91: Fix a race condition during signal handling in at91_do_twi_xfer.
i2c: at91: add bound checking on SMBus block length bytes
arm64: flush TLS registers during exec
ibmveth: Fix endian issues with rx_no_buffer statistic
ahci: add pcid for Marvel 0x9182 controller
ahci: Add Device IDs for Intel 9 Series PCH
pata_scc: propagate return value of scc_wait_after_reset
drm/i915: read HEAD register back in init_ring_common() to enforce ordering
drm/radeon: load the lm63 driver for an lm64 thermal chip.
drm/ttm: Choose a pool to shrink correctly in ttm_dma_pool_shrink_scan().
drm/ttm: Fix possible division by 0 in ttm_dma_pool_shrink_scan().
drm/tilcdc: fix double kfree
drm/tilcdc: fix release order on exit
drm/tilcdc: panel: fix leak when unloading the module
drm/tilcdc: tfp410: fix dangling sysfs connector node
drm/tilcdc: slave: fix dangling sysfs connector node
drm/tilcdc: panel: fix dangling sysfs connector node
carl9170: fix sending URBs with wrong type when using full-speed
Linux 3.10.55
libceph: gracefully handle large reply messages from the mon
libceph: rename ceph_msg::front_max to front_alloc_len
tpm: Provide a generic means to override the chip returned timeouts
vfs: fix bad hashing of dentries
dcache.c: get rid of pointless macros
IB/srp: Fix deadlock between host removal and multipathd
blkcg: don't call into policy draining if root_blkg is already gone
mtd: nand: omap: Fix 1-bit Hamming code scheme, omap_calculate_ecc()
mtd/ftl: fix the double free of the buffers allocated in build_maps()
CIFS: Fix wrong restart readdir for SMB1
CIFS: Fix wrong filename length for SMB2
CIFS: Fix wrong directory attributes after rename
CIFS: Possible null ptr deref in SMB2_tcon
CIFS: Fix async reading on reconnects
CIFS: Fix STATUS_CANNOT_DELETE error mapping for SMB2
libceph: do not hard code max auth ticket len
libceph: add process_one_ticket() helper
libceph: set last_piece in ceph_msg_data_pages_cursor_init() correctly
md/raid1,raid10: always abort recover on write error.
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
xfs: quotacheck leaves dquot buffers without verifiers
RDMA/iwcm: Use a default listen backlog if needed
md/raid10: Fix memory leak when raid10 reshape completes.
md/raid10: fix memory leak when reshaping a RAID10.
md/raid6: avoid data corruption during recovery of double-degraded RAID6
Bluetooth: Avoid use of session socket after the session gets freed
Bluetooth: never linger on process exit
mnt: Add tests for unprivileged remount cases that have found to be faulty
mnt: Change the default remount atime from relatime to the existing value
mnt: Correct permission checks in do_remount
mnt: Move the test for MNT_LOCK_READONLY from change_mount_flags into do_remount
mnt: Only change user settable mount flags in remount
ring-buffer: Up rb_iter_peek() loop count to 3
ring-buffer: Always reset iterator to reader page
ACPI / cpuidle: fix deadlock between cpuidle_lock and cpu_hotplug.lock
ACPI: Run fixed event device notifications in process context
ACPICA: Utilities: Fix memory leak in acpi_ut_copy_iobject_to_iobject
bfa: Fix undefined bit shift on big-endian architectures with 32-bit DMA address
ASoC: pxa-ssp: drop SNDRV_PCM_FMTBIT_S24_LE
ASoC: max98090: Fix missing free_irq
ASoC: samsung: Correct I2S DAI suspend/resume ops
ASoC: wm_adsp: Add missing MODULE_LICENSE
ASoC: pcm: fix dpcm_path_put in dpcm runtime update
openrisc: Rework signal handling
MIPS: Fix accessing to per-cpu data when flushing the cache
MIPS: OCTEON: make get_system_type() thread-safe
MIPS: asm: thread_info: Add _TIF_SECCOMP flag
MIPS: Cleanup flags in syscall flags handlers.
MIPS: asm/reg.h: Make 32- and 64-bit definitions available at the same time
MIPS: Remove BUG_ON(!is_fpu_owner()) in do_ade()
MIPS: tlbex: Fix a missing statement for HUGETLB
MIPS: Prevent user from setting FCSR cause bits
MIPS: GIC: Prevent array overrun
drivers: scsi: storvsc: Correctly handle TEST_UNIT_READY failure
Drivers: scsi: storvsc: Implement a eh_timed_out handler
powerpc/pseries: Failure on removing device node
powerpc/mm: Use read barrier when creating real_pte
powerpc/mm/numa: Fix break placement
regulator: arizona-ldo1: remove bypass functionality
mfd: omap-usb-host: Fix improper mask use.
kernel/smp.c:on_each_cpu_cond(): fix warning in fallback path
CAPABILITIES: remove undefined caps from all processes
tpm: missing tpm_chip_put in tpm_get_random()
firmware: Do not use WARN_ON(!spin_is_locked())
spi: omap2-mcspi: Configure hardware when slave driver changes mode
spi: orion: fix incorrect handling of cell-index DT property
iommu/amd: Fix cleanup_domain for mass device removal
media: media-device: Remove duplicated memset() in media_enum_entities()
media: au0828: Only alt setting logic when needed
media: xc4000: Fix get_frequency()
media: xc5000: Fix get_frequency()
Linux 3.10.54
USB: fix build error with CONFIG_PM_RUNTIME disabled
NFSv4: Fix problems with close in the presence of a delegation
NFSv3: Fix another acl regression
svcrdma: Select NFSv4.1 backchannel transport based on forward channel
NFSD: Decrease nfsd_users in nfsd_startup_generic fail
usb: hub: Prevent hub autosuspend if usbcore.autosuspend is -1
USB: whiteheat: Added bounds checking for bulk command response
USB: ftdi_sio: Added PID for new ekey device
USB: ftdi_sio: add Basic Micro ATOM Nano USB2Serial PID
ARM: OMAP2+: hwmod: Rearm wake-up interrupts for DT when MUSB is idled
usb: xhci: amd chipset also needs short TX quirk
xhci: Treat not finding the event_seg on COMP_STOP the same as COMP_STOP_INVAL
Staging: speakup: Update __speakup_paste_selection() tty (ab)usage to match vt
jbd2: fix infinite loop when recovering corrupt journal blocks
mei: nfc: fix memory leak in error path
mei: reset client state on queued connect request
Btrfs: fix csum tree corruption, duplicate and outdated checksums
hpsa: fix bad -ENOMEM return value in hpsa_big_passthru_ioctl
x86/efi: Enforce CONFIG_RELOCATABLE for EFI boot stub
x86_64/vsyscall: Fix warn_bad_vsyscall log output
x86: don't exclude low BIOS area when allocating address space for non-PCI cards
drm/radeon: add additional SI pci ids
ext4: fix BUG_ON in mb_free_blocks()
kvm: iommu: fix the third parameter of kvm_iommu_put_pages (CVE-2014-3601)
Revert "KVM: x86: Increase the number of fixed MTRR regs to 10"
KVM: nVMX: fix "acknowledge interrupt on exit" when APICv is in use
KVM: x86: always exit on EOIs for interrupts listed in the IOAPIC redir table
KVM: x86: Inter-privilege level ret emulation is not implemeneted
crypto: ux500 - make interrupt mode plausible
serial: core: Preserve termios c_cflag for console resume
ext4: fix ext4_discard_allocated_blocks() if we can't allocate the pa struct
drivers/i2c/busses: use correct type for dma_map/unmap
hwmon: (dme1737) Prevent overflow problem when writing large limits
hwmon: (ads1015) Fix out-of-bounds array access
hwmon: (lm85) Fix various errors on attribute writes
hwmon: (ads1015) Fix off-by-one for valid channel index checking
hwmon: (gpio-fan) Prevent overflow problem when writing large limits
hwmon: (lm78) Fix overflow problems seen when writing large temperature limits
hwmon: (sis5595) Prevent overflow problem when writing large limits
drm: omapdrm: fix compiler errors
ARM: OMAP3: Fix choice of omap3_restore_es function in OMAP34XX rev3.1.2 case.
mei: start disconnect request timer consistently
ALSA: hda/realtek - Avoid setting wrong COEF on ALC269 & co
ALSA: hda/ca0132 - Don't try loading firmware at resume when already failed
ALSA: virtuoso: add Xonar Essence STX II support
ALSA: hda - fix an external mic jack problem on a HP machine
USB: Fix persist resume of some SS USB devices
USB: ehci-pci: USB host controller support for Intel Quark X1000
USB: serial: ftdi_sio: Add support for new Xsens devices
USB: serial: ftdi_sio: Annotate the current Xsens PID assignments
USB: OHCI: don't lose track of EDs when a controller dies
isofs: Fix unbounded recursion when processing relocated directories
HID: fix a couple of off-by-ones
HID: logitech: perform bounds checking on device_id early enough
stable_kernel_rules: Add pointer to netdev-FAQ for network patches
Linux 3.10.53
arch/sparc/math-emu/math_32.c: drop stray break operator
sparc64: ldc_connect() should not return EINVAL when handshake is in progress.
sunsab: Fix detection of BREAK on sunsab serial console
bbc-i2c: Fix BBC I2C envctrl on SunBlade 2000
sparc64: Guard against flushing openfirmware mappings.
sparc64: Do not insert non-valid PTEs into the TSB hash table.
sparc64: Add membar to Niagara2 memcpy code.
sparc64: Fix huge TSB mapping on pre-UltraSPARC-III cpus.
sparc64: Don't bark so loudly about 32-bit tasks generating 64-bit fault addresses.
sparc64: Fix top-level fault handling bugs.
sparc64: Handle 32-bit tasks properly in compute_effective_address().
sparc64: Make itc_sync_lock raw
sparc64: Fix argument sign extension for compat_sys_futex().
sctp: fix possible seqlock seadlock in sctp_packet_transmit()
iovec: make sure the caller actually wants anything in memcpy_fromiovecend
net: Correctly set segment mac_len in skb_segment().
macvlan: Initialize vlan_features to turn on offload support.
net: sctp: inherit auth_capable on INIT collisions
tcp: Fix integer-overflow in TCP vegas
tcp: Fix integer-overflows in TCP veno
net: sendmsg: fix NULL pointer dereference
ip: make IP identifiers less predictable
inetpeer: get rid of ip_id_count
bnx2x: fix crash during TSO tunneling
Linux 3.10.52
x86/espfix/xen: Fix allocation of pages for paravirt page tables
lib/btree.c: fix leak of whole btree nodes
net/l2tp: don't fall back on UDP [get|set]sockopt
net: mvneta: replace Tx timer with a real interrupt
net: mvneta: add missing bit descriptions for interrupt masks and causes
net: mvneta: do not schedule in mvneta_tx_timeout
net: mvneta: use per_cpu stats to fix an SMP lock up
net: mvneta: increase the 64-bit rx/tx stats out of the hot path
Revert "mac80211: move "bufferable MMPDU" check to fix AP mode scan"
staging: vt6655: Fix Warning on boot handle_irq_event_percpu.
x86_64/entry/xen: Do not invoke espfix64 on Xen
x86, espfix: Make it possible to disable 16-bit support
x86, espfix: Make espfix64 a Kconfig option, fix UML
x86, espfix: Fix broken header guard
x86, espfix: Move espfix definitions into a separate header file
x86-64, espfix: Don't leak bits 31:16 of %esp returning to 16-bit stack
Revert "x86-64, modify_ldt: Make support for 16-bit segments a runtime option"
timer: Fix lock inversion between hrtimer_bases.lock and scheduler locks
printk: rename printk_sched to printk_deferred
iio: buffer: Fix demux table creation
staging: vt6655: Fix disassociated messages every 10 seconds
mm, thp: do not allow thp faults to avoid cpuset restrictions
scsi: handle flush errors properly
rapidio/tsi721_dma: fix failure to obtain transaction descriptor
cfg80211: fix mic_failure tracing
ARM: 8115/1: LPAE: reduce damage caused by idmap to virtual memory layout
crypto: af_alg - properly label AF_ALG socket
Linux 3.10.51
core, nfqueue, openvswitch: Orphan frags in skb_zerocopy and handle errors
x86/efi: Include a .bss section within the PE/COFF headers
s390/ptrace: fix PSW mask check
Fix gcc-4.9.0 miscompilation of load_balance() in scheduler
mm: hugetlb: fix copy_hugetlb_page_range()
x86_32, entry: Store badsys error code in %eax
hwmon: (smsc47m192) Fix temperature limit and vrm write operations
parisc: Remove SA_RESTORER define
coredump: fix the setting of PF_DUMPCORE
Input: fix defuzzing logic
slab_common: fix the check for duplicate slab names
slab_common: Do not check for duplicate slab names
tracing: Fix wraparound problems in "uptime" trace clock
blkcg: don't call into policy draining if root_blkg is already gone
ahci: add support for the Promise FastTrak TX8660 SATA HBA (ahci mode)
libata: introduce ata_host->n_tags to avoid oops on SAS controllers
libata: support the ata host which implements a queue depth less than 32
block: don't assume last put of shared tags is for the host
block: provide compat ioctl for BLKZEROOUT
media: tda10071: force modulation to QPSK on DVB-S
media: hdpvr: fix two audio bugs
Linux 3.10.50
ARC: Implement ptrace(PTRACE_GET_THREAD_AREA)
sched: Fix possible divide by zero in avg_atom() calculation
locking/mutex: Disable optimistic spinning on some architectures
PM / sleep: Fix request_firmware() error at resume
dm cache metadata: do not allow the data block size to change
dm thin metadata: do not allow the data block size to change
alarmtimer: Fix bug where relative alarm timers were treated as absolute
drm/radeon: avoid leaking edid data
drm/qxl: return IRQ_NONE if it was not our irq
drm/radeon: set default bl level to something reasonable
irqchip: gic: Fix core ID calculation when topology is read from DT
irqchip: gic: Add support for cortex a7 compatible string
ring-buffer: Fix polling on trace_pipe
mwifiex: fix Tx timeout issue
perf/x86/intel: ignore CondChgd bit to avoid false NMI handling
ipv4: fix buffer overflow in ip_options_compile()
dns_resolver: Null-terminate the right string
dns_resolver: assure that dns_query() result is null-terminated
sunvnet: clean up objects created in vnet_new() on vnet_exit()
net: pppoe: use correct channel MTU when using Multilink PPP
net: sctp: fix information leaks in ulpevent layer
tipc: clear 'next'-pointer of message fragments before reassembly
be2net: set EQ DB clear-intr bit in be_open()
netlink: Fix handling of error from netlink_dump().
net: mvneta: Fix big endian issue in mvneta_txq_desc_csum()
net: mvneta: fix operation in 10 Mbit/s mode
appletalk: Fix socket referencing in skb
tcp: fix false undo corner cases
igmp: fix the problem when mc leave group
net: qmi_wwan: add two Sierra Wireless/Netgear devices
net: qmi_wwan: Add ID for Telewell TW-LTE 4G v2
ipv4: icmp: Fix pMTU handling for rare case
tcp: Fix divide by zero when pushing during tcp-repair
bnx2x: fix possible panic under memory stress
net: fix sparse warning in sk_dst_set()
ipv4: irq safe sk_dst_[re]set() and ipv4_sk_update_pmtu() fix
ipv4: fix dst race in sk_dst_get()
8021q: fix a potential memory leak
net: sctp: check proc_dointvec result in proc_sctp_do_auth
tcp: fix tcp_match_skb_to_sack() for unaligned SACK at end of an skb
ip_tunnel: fix ip_tunnel_lookup
shmem: fix splicing from a hole while it's punched
shmem: fix faulting into a hole, not taking i_mutex
shmem: fix faulting into a hole while it's punched
iwlwifi: dvm: don't enable CTS to self
igb: do a reset on SR-IOV re-init if device is down
hwmon: (adt7470) Fix writes to temperature limit registers
hwmon: (da9052) Don't use dash in the name attribute
hwmon: (da9055) Don't use dash in the name attribute
tracing: Add ftrace_trace_stack into __trace_puts/__trace_bputs
tracing: Fix graph tracer with stack tracer on other archs
fuse: handle large user and group ID
Bluetooth: Ignore H5 non-link packets in non-active state
Drivers: hv: util: Fix a bug in the KVP code
media: gspca_pac7302: Add new usb-id for Genius i-Look 317
usb: Check if port status is equal to RxDetect
Signed-off-by: Ian Maund <imaund@codeaurora.org>
commit 064d83892e9ba547f7d4eae22cbca066d95210ce upstream.
Free the buffer head if the journal descriptor block fails checksum
verification.
This is the jbd2 port of the e2fsprogs patch "e2fsck: free bh on csum
verify error in do_one_pass".
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 022eaa7517017efe4f6538750c2b59a804dc7df7 upstream.
When recovering the journal, don't fall into an infinite loop if we
encounter a corrupt journal block. Instead, just skip the block and
return an error, which fails the mount and thus forces the user to run
a full filesystem fsck.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* commit 'v3.10.49': (529 commits)
Linux 3.10.49
ACPI / battery: Retry to get battery information if failed during probing
x86, ioremap: Speed up check for RAM pages
Score: Modify the Makefile of Score, remove -mlong-calls for compiling
Score: The commit is for compiling successfully.
Score: Implement the function csum_ipv6_magic
score: normalize global variables exported by vmlinux.lds
rtmutex: Plug slow unlock race
rtmutex: Handle deadlock detection smarter
rtmutex: Detect changes in the pi lock chain
rtmutex: Fix deadlock detector for real
ring-buffer: Check if buffer exists before polling
drm/radeon: stop poisoning the GART TLB
drm/radeon: fix typo in golden register setup on evergreen
ext4: disable synchronous transaction batching if max_batch_time==0
ext4: clarify error count warning messages
ext4: fix unjournalled bg descriptor while initializing inode bitmap
dm io: fix a race condition in the wake up code for sync_io
Drivers: hv: vmbus: Fix a bug in the channel callback dispatch code
clk: spear3xx: Use proper control register offset
...
In addition to bringing in upstream commits, this merge also makes minor
changes to mainitain compatibility with upstream:
The definition of list_next_entry in qcrypto.c and ipa_dp.c has been
removed, as upstream has moved the definition to list.h. The implementation
of list_next_entry was identical between the two.
irq.c, for both arm and arm64 architecture, has had its calls to
__irq_set_affinity_locked updated to reflect changes to the API upstream.
Finally, as we have removed the sleep_length member variable of the
tick_sched struct, all changes made by upstream commit ec804bd do not
apply to our tree and have been removed from this merge. Only
kernel/time/tick-sched.c is impacted.
Change-Id: I63b7e0c1354812921c94804e1f3b33d1ad6ee3f1
Signed-off-by: Ian Maund <imaund@codeaurora.org>
commit 5dd214248f94d430d70e9230bda72f2654ac88a8 upstream.
The mount manpage says of the max_batch_time option,
This optimization can be turned off entirely
by setting max_batch_time to 0.
But the code doesn't do that. So fix the code to do
that.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit f6c07cad081ba222d63623d913aafba5586c1d2c upstream.
If a handle runs out of space, we currently stop the kernel with a BUG
in jbd2_journal_dirty_metadata(). This makes it hard to figure out
what might be going on. So return an error of ENOSPC, so we can let
the file system layer figure out what is going on, to make it more
likely we can get useful debugging information). This should make it
easier to debug problems such as the one which was reported by:
https://bugzilla.kernel.org/show_bug.cgi?id=44731
The only two callers of this function are ext4_handle_dirty_metadata()
and ocfs2_journal_dirty(). The ocfs2 function will trigger a
BUG_ON(), which means there will be no change in behavior. The ext4
function will call ext4_error_inode() which will print the useful
debugging information and then handle the situation using ext4's error
handling mechanisms (i.e., which might mean halting the kernel or
remounting the file system read-only).
Also, since both file systems already call WARN_ON(), drop the WARN_ON
from jbd2_journal_dirty_metadata() to avoid two stack traces from
being displayed.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: ocfs2-devel@oss.oracle.com
Acked-by: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 39c04153fda8c32e85b51c96eb5511a326ad7609 upstream.
Once we decrement transaction->t_updates, if this is the last handle
holding the transaction from closing, and once we release the
t_handle_lock spinlock, it's possible for the transaction to commit
and be released. In practice with normal kernels, this probably won't
happen, since the commit happens in a separate kernel thread and it's
unlikely this could all happen within the space of a few CPU cycles.
On the other hand, with a real-time kernel, this could potentially
happen, so save the tid found in transaction->t_tid before we release
t_handle_lock. It would require an insane configuration, such as one
where the jbd2 thread was set to a very high real-time priority,
perhaps because a high priority real-time thread is trying to read or
write to a file system. But some people who use real-time kernels
have been known to do insane things, including controlling
laser-wielding industrial robots. :-)
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit fe52d17cdd343ac43c85cf72940a58865b9d3bfb upstream.
Some of the functions which modify the jbd2 superblock were not
updating the checksum before calling jbd2_write_superblock(). Move
the call to jbd2_superblock_csum_set() to jbd2_write_superblock(), so
that the checksum is calculated consistently.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull VFS updates from Al Viro,
Misc cleanups all over the place, mainly wrt /proc interfaces (switch
create_proc_entry to proc_create(), get rid of the deprecated
create_proc_read_entry() in favor of using proc_create_data() and
seq_file etc).
7kloc removed.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (204 commits)
don't bother with deferred freeing of fdtables
proc: Move non-public stuff from linux/proc_fs.h to fs/proc/internal.h
proc: Make the PROC_I() and PDE() macros internal to procfs
proc: Supply a function to remove a proc entry by PDE
take cgroup_open() and cpuset_open() to fs/proc/base.c
ppc: Clean up scanlog
ppc: Clean up rtas_flash driver somewhat
hostap: proc: Use remove_proc_subtree()
drm: proc: Use remove_proc_subtree()
drm: proc: Use minor->index to label things, not PDE->name
drm: Constify drm_proc_list[]
zoran: Don't print proc_dir_entry data in debug
reiserfs: Don't access the proc_dir_entry in r_open(), r_start() r_show()
proc: Supply an accessor for getting the data from a PDE's parent
airo: Use remove_proc_subtree()
rtl8192u: Don't need to save device proc dir PDE
rtl8187se: Use a dir under /proc/net/r8180/
proc: Add proc_mkdir_data()
proc: Move some bits from linux/proc_fs.h to linux/{of.h,signal.h,tty.h}
proc: Move PDE_NET() to fs/proc/proc_net.c
...
feature this merge window is a new ioctl EXT4_IOC_SWAP_BOOT which
allows installation of a hidden inode designed for boot loaders.
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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
"Mostly performance and bug fixes, plus some cleanups. The one new
feature this merge window is a new ioctl EXT4_IOC_SWAP_BOOT which
allows installation of a hidden inode designed for boot loaders."
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (50 commits)
ext4: fix type-widening bug in inode table readahead code
ext4: add check for inodes_count overflow in new resize ioctl
ext4: fix Kconfig documentation for CONFIG_EXT4_DEBUG
ext4: fix online resizing for ext3-compat file systems
jbd2: trace when lock_buffer in do_get_write_access takes a long time
ext4: mark metadata blocks using bh flags
buffer: add BH_Prio and BH_Meta flags
ext4: mark all metadata I/O with REQ_META
ext4: fix readdir error in case inline_data+^dir_index.
ext4: fix readdir error in the case of inline_data+dir_index
jbd2: use kmem_cache_zalloc instead of kmem_cache_alloc/memset
ext4: mext_insert_extents should update extent block checksum
ext4: move quota initialization out of inode allocation transaction
ext4: reserve xattr index for Rich ACL support
jbd2: reduce journal_head size
ext4: clear buffer_uninit flag when submitting IO
ext4: use io_end for multiple bios
ext4: make ext4_bio_write_page() use BH_Async_Write flags
ext4: Use kstrtoul() instead of parse_strtoul()
ext4: defragmentation code cleanup
...
bh allocation uses kmem_cache_zalloc() so we needn't call
'init_buffer(bh, NULL, NULL)' and perform other set-zero-operations.
Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
While investigating interactivity problems it was clear that processes
sometimes stall for long periods of times if an attempt is made to
lock a buffer which is undergoing writeback. It would stall in
a trace looking something like
[<ffffffff811a39de>] __lock_buffer+0x2e/0x30
[<ffffffff8123a60f>] do_get_write_access+0x43f/0x4b0
[<ffffffff8123a7cb>] jbd2_journal_get_write_access+0x2b/0x50
[<ffffffff81220f79>] __ext4_journal_get_write_access+0x39/0x80
[<ffffffff811f3198>] ext4_reserve_inode_write+0x78/0xa0
[<ffffffff811f3209>] ext4_mark_inode_dirty+0x49/0x220
[<ffffffff811f57d1>] ext4_dirty_inode+0x41/0x60
[<ffffffff8119ac3e>] __mark_inode_dirty+0x4e/0x2d0
[<ffffffff8118b9b9>] update_time+0x79/0xc0
[<ffffffff8118ba98>] file_update_time+0x98/0x100
[<ffffffff81110ffc>] __generic_file_aio_write+0x17c/0x3b0
[<ffffffff811112aa>] generic_file_aio_write+0x7a/0xf0
[<ffffffff811ea853>] ext4_file_write+0x83/0xd0
[<ffffffff81172b23>] do_sync_write+0xa3/0xe0
[<ffffffff811731ae>] vfs_write+0xae/0x180
[<ffffffff8117361d>] sys_write+0x4d/0x90
[<ffffffff8159d62d>] system_call_fastpath+0x1a/0x1f
[<ffffffffffffffff>] 0xffffffffffffffff
Signed-off-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
The jbd2_alloc_handle() function is only called by new_handle(). So
this commit uses kmem_cache_zalloc() instead of
kmem_cache_alloc()/memset().
Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
The only part of proc_dir_entry the code outside of fs/proc
really cares about is PDE(inode)->data. Provide a helper
for that; static inline for now, eventually will be moved
to fs/proc, along with the knowledge of struct proc_dir_entry
layout.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
The following race is possible:
[kjournald2] other_task
jbd2_journal_commit_transaction()
j_state = T_FINISHED;
spin_unlock(&journal->j_list_lock);
->jbd2_journal_remove_checkpoint()
->jbd2_journal_free_transaction();
->kmem_cache_free(transaction)
->j_commit_callback(journal, transaction);
-> USE_AFTER_FREE
WARNING: at lib/list_debug.c:62 __list_del_entry+0x1c0/0x250()
Hardware name:
list_del corruption. prev->next should be ffff88019a4ec198, but was 6b6b6b6b6b6b6b6b
Modules linked in: cpufreq_ondemand acpi_cpufreq freq_table mperf coretemp kvm_intel kvm crc32c_intel ghash_clmulni_intel microcode sg xhci_hcd button sd_mod crc_t10dif aesni_intel ablk_helper cryptd lrw aes_x86_64 xts gf128mul ahci libahci pata_acpi ata_generic dm_mirror dm_region_hash dm_log dm_mod
Pid: 16400, comm: jbd2/dm-1-8 Tainted: G W 3.8.0-rc3+ #107
Call Trace:
[<ffffffff8106fb0d>] warn_slowpath_common+0xad/0xf0
[<ffffffff8106fc06>] warn_slowpath_fmt+0x46/0x50
[<ffffffff813637e9>] ? ext4_journal_commit_callback+0x99/0xc0
[<ffffffff8148cae0>] __list_del_entry+0x1c0/0x250
[<ffffffff813637bf>] ext4_journal_commit_callback+0x6f/0xc0
[<ffffffff813ca336>] jbd2_journal_commit_transaction+0x23a6/0x2570
[<ffffffff8108aa42>] ? try_to_del_timer_sync+0x82/0xa0
[<ffffffff8108b491>] ? del_timer_sync+0x91/0x1e0
[<ffffffff813d3ecf>] kjournald2+0x19f/0x6a0
[<ffffffff810ad630>] ? wake_up_bit+0x40/0x40
[<ffffffff813d3d30>] ? bit_spin_lock+0x80/0x80
[<ffffffff810ac6be>] kthread+0x10e/0x120
[<ffffffff810ac5b0>] ? __init_kthread_worker+0x70/0x70
[<ffffffff818ff6ac>] ret_from_fork+0x7c/0xb0
[<ffffffff810ac5b0>] ? __init_kthread_worker+0x70/0x70
In order to demonstrace this issue one should mount ext4 with mount -o
discard option on SSD disk. This makes callback longer and race
window becomes wider.
In order to fix this we should mark transaction as finished only after
callbacks have completed
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org
In the case where an inode has a very stale transaction id (tid) in
i_datasync_tid or i_sync_tid, it's possible that after a very large
(2**31) number of transactions, that the tid number space might wrap,
causing tid_geq()'s calculations to fail.
Commit deeeaf13 "jbd2: fix fsync() tid wraparound bug", later modified
by commit e7b04ac0 "jbd2: don't wake kjournald unnecessarily",
attempted to fix this problem, but it only avoided kjournald spinning
forever by fixing the logic in jbd2_log_start_commit().
Unfortunately, in the codepaths in fs/ext4/fsync.c and fs/ext4/inode.c
that might call jbd2_log_start_commit() with a stale tid, those
functions will subsequently call jbd2_log_wait_commit() with the same
stale tid, and then wait for a very long time. To fix this, we
replace the calls to jbd2_log_start_commit() and
jbd2_log_wait_commit() with a call to a new function,
jbd2_complete_transaction(), which will correctly handle stale tid's.
As a bonus, jbd2_complete_transaction() will avoid locking
j_state_lock for writing unless a commit needs to be started. This
should have a small (but probably not measurable) improvement for
ext4's scalability.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reported-by: Ben Hutchings <ben@decadent.org.uk>
Reported-by: George Barnett <gbarnett@atlassian.com>
Cc: stable@vger.kernel.org
jbd2_journal_dirty_metadata() didn't get a reference to journal_head it
was working with. This is OK in most of the cases since the journal head
should be attached to a transaction but in rare occasions when we are
journalling data, __ext4_journalled_writepage() can race with
jbd2_journal_invalidatepage() stripping buffers from a page and thus
journal head can be freed under hands of jbd2_journal_dirty_metadata().
Fix the problem by getting own journal head reference in
jbd2_journal_dirty_metadata() (and also in jbd2_journal_set_triggers()
which can possibly have the same issue).
Reported-by: Zheng Liu <gnehzuil.liu@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org
There are multiple reasons to move away from debugfs. First of all,
we are only using it for a single parameter, and it is much more
complicated to set up (some 30 lines of code compared to 3), and one
more thing that might fail while loading the jbd2 module.
Secondly, as a module paramter it can be specified as a boot option if
jbd2 is built into the kernel, or as a parameter when the module is
loaded, and it can also be manipulated dynamically under
/sys/module/jbd2/parameters/jbd2_debug. So it is more flexible.
Ultimately we want to move away from using jbd_debug() towards
tracepoints, but for now this is still a useful simplification of the
code base.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Handles which stay open a long time are problematic when it comes time
to close down a transaction so it can be committed. These tracepoints
will help us determine which ones are the problematic ones, and to
validate whether changes makes things better or worse.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Track the delay between when we first request that the commit begin
and when it actually begins, so we can see how much of a gap exists.
In theory, this should just be the remaining scheduling quantuum of
the thread which requested the commit (assuming it was not a
synchronous operation which triggered the commit request) plus
scheduling overhead; however, it's possible that real time processes
might get in the way of letting the kjournald thread from executing.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Don't send an extra wakeup to kjournald in the case where we
already have the proper target in j_commit_request, i.e. that
transaction has already been requested for commit.
commit deeeaf13 "jbd2: fix fsync() tid wraparound bug" changed
the logic leading to a wakeup, but it caused some extra wakeups
which were found to lead to a measurable performance regression.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
[tytso@mit.edu: reworked check to make it clearer]
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
which could cause file system corruptions when performing file punch
operations.
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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 bug fixes from Ted Ts'o:
"Various bug fixes for ext4. Perhaps the most serious bug fixed is one
which could cause file system corruptions when performing file punch
operations."
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: avoid hang when mounting non-journal filesystems with orphan list
ext4: lock i_mutex when truncating orphan inodes
ext4: do not try to write superblock on ro remount w/o journal
ext4: include journal blocks in df overhead calcs
ext4: remove unaligned AIO warning printk
ext4: fix an incorrect comment about i_mutex
ext4: fix deadlock in journal_unmap_buffer()
ext4: split off ext4_journalled_invalidatepage()
jbd2: fix assertion failure in jbd2_journal_flush()
ext4: check dioread_nolock on remount
ext4: fix extent tree corruption caused by hole punch
We cannot wait for transaction commit in journal_unmap_buffer()
because we hold page lock which ranks below transaction start. We
solve the issue by bailing out of journal_unmap_buffer() and
jbd2_journal_invalidatepage() with -EBUSY. Caller is then responsible
for waiting for transaction commit to finish and try invalidation
again. Since the issue can happen only for page stradding i_size, it
is simple enough to manually call jbd2_journal_invalidatepage() for
such page from ext4_setattr(), check the return value and wait if
necessary.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
The following race is possible between start_this_handle() and someone
calling jbd2_journal_flush().
Process A Process B
start_this_handle().
if (journal->j_barrier_count) # false
if (!journal->j_running_transaction) { #true
read_unlock(&journal->j_state_lock);
jbd2_journal_lock_updates()
jbd2_journal_flush()
write_lock(&journal->j_state_lock);
if (journal->j_running_transaction) {
# false
... wait for committing trans ...
write_unlock(&journal->j_state_lock);
...
write_lock(&journal->j_state_lock);
if (!journal->j_running_transaction) { # true
jbd2_get_transaction(journal, new_transaction);
write_unlock(&journal->j_state_lock);
goto repeat; # eventually blocks on j_barrier_count > 0
...
J_ASSERT(!journal->j_running_transaction);
# fails
We fix the race by rechecking j_barrier_count after reacquiring j_state_lock
in exclusive mode.
Reported-by: yjwsignal@empal.com
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org
inline data, which allows small files or directories to be stored in
the in-inode extended attribute area. (This requires that the file
system use inodes which are at least 256 bytes or larger; 128 byte
inodes do not have any room for in-inode xattrs.)
The second new feature is SEEK_HOLE/SEEK_DATA support. This is
enabled by the extent status tree patches, and this infrastructure
will be used to further optimize ext4 in the future.
Beyond that, we have the usual collection of code cleanups and bug
fixes.
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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 update from Ted Ts'o:
"There are two major features for this merge window. The first is
inline data, which allows small files or directories to be stored in
the in-inode extended attribute area. (This requires that the file
system use inodes which are at least 256 bytes or larger; 128 byte
inodes do not have any room for in-inode xattrs.)
The second new feature is SEEK_HOLE/SEEK_DATA support. This is
enabled by the extent status tree patches, and this infrastructure
will be used to further optimize ext4 in the future.
Beyond that, we have the usual collection of code cleanups and bug
fixes."
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (63 commits)
ext4: zero out inline data using memset() instead of empty_zero_page
ext4: ensure Inode flags consistency are checked at build time
ext4: Remove CONFIG_EXT4_FS_XATTR
ext4: remove unused variable from ext4_ext_in_cache()
ext4: remove redundant initialization in ext4_fill_super()
ext4: remove redundant code in ext4_alloc_inode()
ext4: use sync_inode_metadata() when syncing inode metadata
ext4: enable ext4 inline support
ext4: let fallocate handle inline data correctly
ext4: let ext4_truncate handle inline data correctly
ext4: evict inline data out if we need to strore xattr in inode
ext4: let fiemap work with inline data
ext4: let ext4_rename handle inline dir
ext4: let empty_dir handle inline dir
ext4: let ext4_delete_entry() handle inline data
ext4: make ext4_delete_entry generic
ext4: let ext4_find_entry handle inline data
ext4: create a new function search_dir
ext4: let ext4_readdir handle inline data
ext4: let add_dir_entry handle inline data properly
...
"Whether" is misspelled in various comments across the tree; this
fixes them. No code changes.
Signed-off-by: Adam Buchbinder <adam.buchbinder@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
ext4_handle_release_buffer() was intended to remove journal
write access from a buffer, but it doesn't actually do anything
at all other than add a BUFFER_TRACE point, but it's not reliably
used for that either. Remove all the associated dead code.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
using the meta_bg feature. This allows us to resize file systems
which are greater than 16TB. In addition, the speed of online
resizing has been improved in general.
We also fix a number of races, some of which could lead to deadlocks,
in ext4's Asynchronous I/O and online defrag support, thanks to good
work by Dmitry Monakhov.
There are also a large number of more minor bug fixes and cleanups
from a number of other ext4 contributors, quite of few of which have
submitted fixes for the first time.
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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
"The big new feature added this time is supporting online resizing
using the meta_bg feature. This allows us to resize file systems
which are greater than 16TB. In addition, the speed of online
resizing has been improved in general.
We also fix a number of races, some of which could lead to deadlocks,
in ext4's Asynchronous I/O and online defrag support, thanks to good
work by Dmitry Monakhov.
There are also a large number of more minor bug fixes and cleanups
from a number of other ext4 contributors, quite of few of which have
submitted fixes for the first time."
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (69 commits)
ext4: fix ext4_flush_completed_IO wait semantics
ext4: fix mtime update in nodelalloc mode
ext4: fix ext_remove_space for punch_hole case
ext4: punch_hole should wait for DIO writers
ext4: serialize truncate with owerwrite DIO workers
ext4: endless truncate due to nonlocked dio readers
ext4: serialize unlocked dio reads with truncate
ext4: serialize dio nonlocked reads with defrag workers
ext4: completed_io locking cleanup
ext4: fix unwritten counter leakage
ext4: give i_aiodio_unwritten a more appropriate name
ext4: ext4_inode_info diet
ext4: convert to use leXX_add_cpu()
ext4: ext4_bread usage audit
fs: reserve fallocate flag codepoint
ext4: remove redundant offset check in mext_check_arguments()
ext4: don't clear orphan list on ro mount with errors
jbd2: fix assertion failure in commit code due to lacking transaction credits
ext4: release donor reference when EXT4_IOC_MOVE_EXT ioctl fails
ext4: enable FITRIM ioctl on bigalloc file system
...
ext4 users of data=journal mode with blocksize < pagesize were
occasionally hitting assertion failure in
jbd2_journal_commit_transaction() checking whether the transaction has
at least as many credits reserved as buffers attached. The core of the
problem is that when a file gets truncated, buffers that still need
checkpointing or that are attached to the committing transaction are
left with buffer_mapped set. When this happens to buffers beyond i_size
attached to a page stradding i_size, subsequent write extending the file
will see these buffers and as they are mapped (but underlying blocks
were freed) things go awry from here.
The assertion failure just coincidentally (and in this case luckily as
we would start corrupting filesystem) triggers due to journal_head not
being properly cleaned up as well.
We fix the problem by unmapping buffers if possible (in lots of cases we
just need a buffer attached to a transaction as a place holder but it
must not be written out anyway). And in one case, we just have to bite
the bullet and wait for transaction commit to finish.
CC: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This sequence:
# truncate --size=1g fsfile
# mkfs.ext4 -F fsfile
# mount -o loop,ro fsfile /mnt
# umount /mnt
# dmesg | tail
results in an IO error when unmounting the RO filesystem:
[ 318.020828] Buffer I/O error on device loop1, logical block 196608
[ 318.027024] lost page write due to I/O error on loop1
[ 318.032088] JBD2: Error -5 detected when updating journal superblock for loop1-8.
This was a regression introduced by commit 24bcc89c7e7c: "jbd2: split
updating of journal superblock and marking journal empty".
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org
the ones which cause problems for ext4 on RAID --- a performance
problem when mounting very large filesystems, and a kernel OOPS when
doing an rm -rf on large directory hierarchies on fast devices.
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Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 bug fixes from Ted Ts'o:
"The following are all bug fixes and regressions. The most notable are
the ones which cause problems for ext4 on RAID --- a performance
problem when mounting very large filesystems, and a kernel OOPS when
doing an rm -rf on large directory hierarchies on fast devices."
* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: fix kernel BUG on large-scale rm -rf commands
ext4: fix long mount times on very big file systems
ext4: don't call ext4_error while block group is locked
ext4: avoid kmemcheck complaint from reading uninitialized memory
ext4: make sure the journal sb is written in ext4_clear_journal_err()
blkdev_issue_flush() can fail; make sure the error gets properly
propagated.
This is a port of the equivalent jbd patch from commit 349ecd6a3c.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
After we transfer set the EXT4_ERROR_FS bit in the file system
superblock, it's not enough to call jbd2_journal_clear_err() to clear
the error indication from journal superblock --- we need to call
jbd2_journal_update_sb_errno() as well. Otherwise, when the root file
system is mounted read-only, the journal is replayed, and the error
indicator is transferred to the superblock --- but the s_errno field
in the jbd2 superblock is left set (since although we cleared it in
memory, we never flushed it out to disk).
This can end up confusing e2fsck. We should make e2fsck more robust
in this case, but the kernel shouldn't be leaving things in this
confused state, either.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@kernel.org
The '->write_super' superblock method is gone, and this patch removes all the
references to 'write_super' from various jbd and jbd2.
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jan Kara <jack@suse.cz>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
zhangyi (F)
Theodore Ts'o
Luca Stefani
LuK1337
OGAWA Hirofumi
Jan Kara
Daeho Jeong
Joseph Qi
Dmitry Monakhov
Ian Maund
Darrick J. Wong
Peter Zijlstra
Eric Sandeen
Linus Torvalds
majianpeng
Zheng Liu
Al Viro
Adam Buchbinder
Artem Bityutskiy