When file permissions are modified via chmod(2) and the user is not in
the owning group or capable of CAP_FSETID, the setgid bit is cleared in
inode_change_ok(). Setting a POSIX ACL via setxattr(2) sets the file
permissions as well as the new ACL, but doesn't clear the setgid bit in
a similar way; this allows to bypass the check in chmod(2). Fix that.
References: CVE-2016-7097
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Git-repo: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/
linux.git
Git-commit: 073931017b49d9458aa351605b43a7e34598caef
Change-Id: Idf7cd8d0fb030fedeabd46254e4c4a9c08bce8b5
[d-cagle@codeaurora.org: Resolve merge conflicts and style]
Signed-off-by: Dennis Cagle <d-cagle@codeaurora.org>
[stummala@codeaurora.org: Resolve merge conflicts on existing files and
skip files fs/ceph/acl.c, fs/hfsplus/posix_acl.c and fs/jfs/acl.c from
original change as those files are not present/fix is not applicable on
3.10 kernel]
Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
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Merge upstream tag 'v3.10.84' into LA.BR.1.3.3
This merge brings us up-to-date as of upstream tag v3.10.84
* tag 'v3.10.84' (317 commits):
Linux 3.10.84
fs: Fix S_NOSEC handling
KVM: x86: make vapics_in_nmi_mode atomic
MIPS: Fix KVM guest fixmap address
x86/PCI: Use host bridge _CRS info on Foxconn K8M890-8237A
powerpc/perf: Fix book3s kernel to userspace backtraces
arm: KVM: force execution of HCPTR access on VM exit
Revert "crypto: talitos - convert to use be16_add_cpu()"
crypto: talitos - avoid memleak in talitos_alg_alloc()
sctp: Fix race between OOTB responce and route removal
packet: avoid out of bounds read in round robin fanout
packet: read num_members once in packet_rcv_fanout()
bridge: fix br_stp_set_bridge_priority race conditions
bridge: fix multicast router rlist endless loop
sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in softirq context
Linux 3.10.83
bus: mvebu: pass the coherency availability information at init time
KVM: nSVM: Check for NRIPS support before updating control field
ARM: clk-imx6q: refine sata's parent
d_walk() might skip too much
ipv6: update ip6_rt_last_gc every time GC is run
ipv6: prevent fib6_run_gc() contention
xfrm: Increase the garbage collector threshold
Btrfs: make xattr replace operations atomic
x86/microcode/intel: Guard against stack overflow in the loader
fs: take i_mutex during prepare_binprm for set[ug]id executables
hpsa: add missing pci_set_master in kdump path
hpsa: refine the pci enable/disable handling
sb_edac: Fix erroneous bytes->gigabytes conversion
ACPICA: Utilities: Cleanup to remove useless ACPI_PRINTF/FORMAT_xxx helpers.
ACPICA: Utilities: Cleanup to convert physical address printing formats.
__ptrace_may_access() should not deny sub-threads
include/linux/sched.h: don't use task->pid/tgid in same_thread_group/has_group_leader_pid
netfilter: Zero the tuple in nfnl_cthelper_parse_tuple()
netfilter: nfnetlink_cthelper: Remove 'const' and '&' to avoid warnings
config: Enable NEED_DMA_MAP_STATE by default when SWIOTLB is selected
get rid of s_files and files_lock
fput: turn "list_head delayed_fput_list" into llist_head
Linux 3.10.82
lpfc: Add iotag memory barrier
pipe: iovec: Fix memory corruption when retrying atomic copy as non-atomic
drm/mgag200: Reject non-character-cell-aligned mode widths
tracing: Have filter check for balanced ops
crypto: caam - fix RNG buffer cache alignment
Linux 3.10.81
btrfs: cleanup orphans while looking up default subvolume
btrfs: incorrect handling for fiemap_fill_next_extent return
cfg80211: wext: clear sinfo struct before calling driver
mm/memory_hotplug.c: set zone->wait_table to null after freeing it
drm/i915: Fix DDC probe for passive adapters
pata_octeon_cf: fix broken build
ozwpan: unchecked signed subtraction leads to DoS
ozwpan: divide-by-zero leading to panic
ozwpan: Use proper check to prevent heap overflow
MIPS: Fix enabling of DEBUG_STACKOVERFLOW
ring-buffer-benchmark: Fix the wrong sched_priority of producer
USB: serial: ftdi_sio: Add support for a Motion Tracker Development Board
USB: cp210x: add ID for HubZ dual ZigBee and Z-Wave dongle
block: fix ext_dev_lock lockdep report
Input: elantech - fix detection of touchpads where the revision matches a known rate
ALSA: usb-audio: add MAYA44 USB+ mixer control names
ALSA: usb-audio: Add mic volume fix quirk for Logitech Quickcam Fusion
ALSA: hda/realtek - Add a fixup for another Acer Aspire 9420
iio: adis16400: Compute the scan mask from channel indices
iio: adis16400: Use != channel indices for the two voltage channels
iio: adis16400: Report pressure channel scale
xen: netback: read hotplug script once at start of day.
udp: fix behavior of wrong checksums
net_sched: invoke ->attach() after setting dev->qdisc
unix/caif: sk_socket can disappear when state is unlocked
net: dp83640: fix broken calibration routine.
bridge: fix parsing of MLDv2 reports
ipv4: Avoid crashing in ip_error
net: phy: Allow EEE for all RGMII variants
Linux 3.10.80
fs/binfmt_elf.c:load_elf_binary(): return -EINVAL on zero-length mappings
vfs: read file_handle only once in handle_to_path
ACPI / init: Fix the ordering of acpi_reserve_resources()
Input: elantech - fix semi-mt protocol for v3 HW
rtlwifi: rtl8192cu: Fix kernel deadlock
md/raid5: don't record new size if resize_stripes fails.
svcrpc: fix potential GSSX_ACCEPT_SEC_CONTEXT decoding failures
ARM: fix missing syscall trace exit
ARM: dts: imx27: only map 4 Kbyte for fec registers
crypto: s390/ghash - Fix incorrect ghash icv buffer handling.
rt2x00: add new rt2800usb device DWA 130
libata: Ignore spurious PHY event on LPM policy change
libata: Add helper to determine when PHY events should be ignored
ext4: check for zero length extent explicitly
ext4: convert write_begin methods to stable_page_writes semantics
mmc: atmel-mci: fix bad variable type for clkdiv
powerpc: Align TOC to 256 bytes
usb: gadget: configfs: Fix interfaces array NULL-termination
usb-storage: Add NO_WP_DETECT quirk for Lacie 059f:0651 devices
USB: cp210x: add ID for KCF Technologies PRN device
USB: pl2303: Remove support for Samsung I330
USB: visor: Match I330 phone more precisely
xhci: gracefully handle xhci_irq dead device
xhci: Solve full event ring by increasing TRBS_PER_SEGMENT to 256
xhci: fix isoc endpoint dequeue from advancing too far on transaction error
target/pscsi: Don't leak scsi_host if hba is VIRTUAL_HOST
ASoC: wm8994: correct BCLK DIV 348 to 384
ASoC: wm8960: fix "RINPUT3" audio route error
ASoC: mc13783: Fix wrong mask value used in mc13xxx_reg_rmw() calls
ALSA: hda - Add headphone quirk for Lifebook E752
ALSA: hda - Add Conexant codecs CX20721, CX20722, CX20723 and CX20724
d_walk() might skip too much
lib: Fix strnlen_user() to not touch memory after specified maximum
hwmon: (ntc_thermistor) Ensure iio channel is of type IIO_VOLTAGE
libceph: request a new osdmap if lingering request maps to no osd
lguest: fix out-by-one error in address checking.
fs, omfs: add NULL terminator in the end up the token list
KVM: MMU: fix CR4.SMEP=1, CR0.WP=0 with shadow pages
net: socket: Fix the wrong returns for recvmsg and sendmsg
kernel: use the gnu89 standard explicitly
staging, rtl8192e, LLVMLinux: Remove unused inline prototype
staging: rtl8712, rtl8712: avoid lots of build warnings
staging, rtl8192e, LLVMLinux: Change extern inline to static inline
drm/i915: Fix declaration of intel_gmbus_{is_forced_bit/is_port_falid}
staging: wlags49_h2: fix extern inline functions
Linux 3.10.79
ACPICA: Utilities: Cleanup to enforce ACPI_PHYSADDR_TO_PTR()/ACPI_PTR_TO_PHYSADDR().
ACPICA: Tables: Change acpi_find_root_pointer() to use acpi_physical_address.
revert "softirq: Add support for triggering softirq work on softirqs"
sound/oss: fix deadlock in sequencer_ioctl(SNDCTL_SEQ_OUTOFBAND)
mmc: card: Don't access RPMB partitions for normal read/write
pinctrl: Don't just pretend to protect pinctrl_maps, do it for real
drm/i915: Add missing MacBook Pro models with dual channel LVDS
ARM: mvebu: armada-xp-openblocks-ax3-4: Disable internal RTC
ARM: dts: imx23-olinuxino: Fix dr_mode of usb0
ARM: dts: imx28: Fix AUART4 TX-DMA interrupt name
ARM: dts: imx25: Add #pwm-cells to pwm4
gpio: sysfs: fix memory leaks and device hotplug
gpio: unregister gpiochip device before removing it
xen/console: Update console event channel on resume
mm/memory-failure: call shake_page() when error hits thp tail page
nilfs2: fix sanity check of btree level in nilfs_btree_root_broken()
ocfs2: dlm: fix race between purge and get lock resource
Linux 3.10.78
ARC: signal handling robustify
UBI: fix soft lockup in ubi_check_volume()
Drivers: hv: vmbus: Don't wait after requesting offers
ARM: dts: dove: Fix uart[23] reg property
staging: panel: fix lcd type
usb: gadget: printer: enqueue printer's response for setup request
usb: host: oxu210hp: use new USB_RESUME_TIMEOUT
3w-sas: fix command completion race
3w-9xxx: fix command completion race
3w-xxxx: fix command completion race
ext4: fix data corruption caused by unwritten and delayed extents
rbd: end I/O the entire obj_request on error
serial: of-serial: Remove device_type = "serial" registration
ALSA: hda - Fix mute-LED fixed mode
ALSA: emu10k1: Emu10k2 32 bit DMA mode
ALSA: emu10k1: Fix card shortname string buffer overflow
ALSA: emux: Fix mutex deadlock in OSS emulation
ALSA: emux: Fix mutex deadlock at unloading
ipv4: Missing sk_nulls_node_init() in ping_unhash().
Linux 3.10.77
s390: Fix build error
nosave: consolidate __nosave_{begin,end} in <asm/sections.h>
memstick: mspro_block: add missing curly braces
C6x: time: Ensure consistency in __init
wl18xx: show rx_frames_per_rates as an array as it really is
lib: memzero_explicit: use barrier instead of OPTIMIZER_HIDE_VAR
e1000: add dummy allocator to fix race condition between mtu change and netpoll
ksoftirqd: Enable IRQs and call cond_resched() before poking RCU
RCU pathwalk breakage when running into a symlink overmounting something
drm/i915: cope with large i2c transfers
drm/radeon: fix doublescan modes (v2)
i2c: core: Export bus recovery functions
IB/mlx4: Fix WQE LSO segment calculation
IB/core: don't disallow registering region starting at 0x0
IB/core: disallow registering 0-sized memory region
stk1160: Make sure current buffer is released
mvsas: fix panic on expander attached SATA devices
Drivers: hv: vmbus: Fix a bug in the error path in vmbus_open()
xtensa: provide __NR_sync_file_range2 instead of __NR_sync_file_range
xtensa: xtfpga: fix hardware lockup caused by LCD driver
ACPICA: Utilities: split IO address types from data type models.
drivers: parport: Kconfig: exclude arm64 for PARPORT_PC
scsi: storvsc: Fix a bug in copy_from_bounce_buffer()
UBI: fix check for "too many bytes"
UBI: initialize LEB number variable
UBI: fix out of bounds write
UBI: account for bitflips in both the VID header and data
tools/power turbostat: Use $(CURDIR) instead of $(PWD) and add support for O= option in Makefile
powerpc/perf: Cap 64bit userspace backtraces to PERF_MAX_STACK_DEPTH
ext4: make fsync to sync parent dir in no-journal for real this time
arm64: kernel: compiling issue, need delete read_current_timer()
video: vgacon: Don't build on arm64
console: Disable VGA text console support on cris
drivers: parport: Kconfig: exclude h8300 for PARPORT_PC
parport: disable PC-style parallel port support on cris
rtlwifi: rtl8192cu: Add new device ID
rtlwifi: rtl8192cu: Add new USB ID
ptrace: fix race between ptrace_resume() and wait_task_stopped()
fs/binfmt_elf.c: fix bug in loading of PIE binaries
Input: elantech - fix absolute mode setting on some ASUS laptops
ALSA: emu10k1: don't deadlock in proc-functions
usb: core: hub: use new USB_RESUME_TIMEOUT
usb: host: sl811: use new USB_RESUME_TIMEOUT
usb: host: xhci: use new USB_RESUME_TIMEOUT
usb: host: isp116x: use new USB_RESUME_TIMEOUT
usb: host: r8a66597: use new USB_RESUME_TIMEOUT
usb: define a generic USB_RESUME_TIMEOUT macro
usb: phy: Find the right match in devm_usb_phy_match
ARM: S3C64XX: Use fixed IRQ bases to avoid conflicts on Cragganmore
ARM: 8320/1: fix integer overflow in ELF_ET_DYN_BASE
power_supply: lp8788-charger: Fix leaked power supply on probe fail
ring-buffer: Replace this_cpu_*() with __this_cpu_*()
spi: spidev: fix possible arithmetic overflow for multi-transfer message
cdc-wdm: fix endianness bug in debug statements
MIPS: Hibernate: flush TLB entries earlier
KVM: use slowpath for cross page cached accesses
s390/hibernate: fix save and restore of kernel text section
KVM: s390: Zero out current VMDB of STSI before including level3 data.
usb: gadget: composite: enable BESL support
Btrfs: fix inode eviction infinite loop after cloning into it
Btrfs: fix log tree corruption when fs mounted with -o discard
tcp: avoid looping in tcp_send_fin()
tcp: fix possible deadlock in tcp_send_fin()
ip_forward: Drop frames with attached skb->sk
Linux 3.10.76
dcache: Fix locking bugs in backported "deal with deadlock in d_walk()"
arc: mm: Fix build failure
sb_edac: avoid INTERNAL ERROR message in EDAC with unspecified channel
x86: mm: move mmap_sem unlock from mm_fault_error() to caller
vm: make stack guard page errors return VM_FAULT_SIGSEGV rather than SIGBUS
vm: add VM_FAULT_SIGSEGV handling support
deal with deadlock in d_walk()
move d_rcu from overlapping d_child to overlapping d_alias
kconfig: Fix warning "‘jump’ may be used uninitialized"
KVM: x86: SYSENTER emulation is broken
netfilter: conntrack: disable generic tracking for known protocols
Bluetooth: Ignore isochronous endpoints for Intel USB bootloader
Bluetooth: Add support for Intel bootloader devices
Bluetooth: btusb: Add IMC Networks (Broadcom based)
Bluetooth: Add firmware update for Atheros 0cf3:311f
Bluetooth: Enable Atheros 0cf3:311e for firmware upload
mm: Fix NULL pointer dereference in madvise(MADV_WILLNEED) support
splice: Apply generic position and size checks to each write
jfs: fix readdir regression
serial: 8250_dw: Fix deadlock in LCR workaround
benet: Call dev_kfree_skby_any instead of kfree_skb.
ixgb: Call dev_kfree_skby_any instead of dev_kfree_skb.
tg3: Call dev_kfree_skby_any instead of dev_kfree_skb.
bnx2: Call dev_kfree_skby_any instead of dev_kfree_skb.
r8169: Call dev_kfree_skby_any instead of dev_kfree_skb.
8139too: Call dev_kfree_skby_any instead of dev_kfree_skb.
8139cp: Call dev_kfree_skby_any instead of kfree_skb.
tcp: tcp_make_synack() should clear skb->tstamp
tcp: fix FRTO undo on cumulative ACK of SACKed range
ipv6: Don't reduce hop limit for an interface
tcp: prevent fetching dst twice in early demux code
remove extra definitions of U32_MAX
conditionally define U32_MAX
Linux 3.10.75
pagemap: do not leak physical addresses to non-privileged userspace
console: Fix console name size mismatch
IB/mlx4: Saturate RoCE port PMA counters in case of overflow
kernel.h: define u8, s8, u32, etc. limits
net: llc: use correct size for sysctl timeout entries
net: rds: use correct size for max unacked packets and bytes
ipc: fix compat msgrcv with negative msgtyp
core, nfqueue, openvswitch: fix compilation warning
media: s5p-mfc: fix mmap support for 64bit arch
iscsi target: fix oops when adding reject pdu
ocfs2: _really_ sync the right range
be2iscsi: Fix kernel panic when device initialization fails
cifs: fix use-after-free bug in find_writable_file
usb: xhci: apply XHCI_AVOID_BEI quirk to all Intel xHCI controllers
cpuidle: ACPI: do not overwrite name and description of C0
dmaengine: omap-dma: Fix memory leak when terminating running transfer
iio: imu: Use iio_trigger_get for indio_dev->trig assignment
iio: inv_mpu6050: Clear timestamps fifo while resetting hardware fifo
Defer processing of REQ_PREEMPT requests for blocked devices
USB: ftdi_sio: Use jtag quirk for SNAP Connect E10
USB: ftdi_sio: Added custom PID for Synapse Wireless product
radeon: Do not directly dereference pointers to BIOS area.
writeback: fix possible underflow in write bandwidth calculation
writeback: add missing INITIAL_JIFFIES init in global_update_bandwidth()
mm/memory hotplug: postpone the reset of obsolete pgdat
nbd: fix possible memory leak
iwlwifi: dvm: run INIT firmware again upon .start()
IB/uverbs: Prevent integer overflow in ib_umem_get address arithmetic
IB/core: Avoid leakage from kernel to user space
tcp: Fix crash in TCP Fast Open
selinux: fix sel_write_enforce broken return value
ALSA: hda - Fix headphone pin config for Lifebook T731
ALSA: usb - Creative USB X-Fi Pro SB1095 volume knob support
ALSA: hda - Add one more node in the EAPD supporting candidate list
Linux 3.10.74
net: ethernet: pcnet32: Setup the SRAM and NOUFLO on Am79C97{3, 5}
powerpc/mpc85xx: Add ranges to etsec2 nodes
hfsplus: fix B-tree corruption after insertion at position 0
dm: hold suspend_lock while suspending device during device deletion
vt6655: RFbSetPower fix missing rate RATE_12M
perf: Fix irq_work 'tail' recursion
Revert "iwlwifi: mvm: fix failure path when power_update fails in add_interface"
mac80211: drop unencrypted frames in mesh fwding
mac80211: disable u-APSD queues by default
nl80211: ignore HT/VHT capabilities without QoS/WMM
tcm_qla2xxx: Fix incorrect use of __transport_register_session
tcm_fc: missing curly braces in ft_invl_hw_context()
ASoC: wm8955: Fix wrong value references for boolean kctl
ASoC: adav80x: Fix wrong value references for boolean kctl
ASoC: ak4641: Fix wrong value references for boolean kctl
ASoC: wm8904: Fix wrong value references for boolean kctl
ASoC: wm8903: Fix wrong value references for boolean kctl
ASoC: wm2000: Fix wrong value references for boolean kctl
ASoC: wm8731: Fix wrong value references for boolean kctl
ASoC: tas5086: Fix wrong value references for boolean kctl
ASoC: wm8960: Fix wrong value references for boolean kctl
ASoC: cs4271: Fix wrong value references for boolean kctl
ASoC: sgtl5000: remove useless register write clearing CHRGPUMP_POWERUP
Change-Id: Ib7976ee2c7224e39074157e28db4158db40b00db
Signed-off-by: Kaushal Kumar <kaushalk@codeaurora.org>
commit 04f9b74e4d96d349de12fdd4e6626af4a9f75e09 upstream.
Now that the definition is centralized in <linux/kernel.h>, the
definitions of U32_MAX (and related) elsewhere in the kernel can be
removed.
Signed-off-by: Alex Elder <elder@linaro.org>
Acked-by: Sage Weil <sage@inktank.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 77719536dc00f8fd8f5abe6dadbde5331c37f996 upstream.
The symbol U32_MAX is defined in several spots. Change these
definitions to be conditional. This is in preparation for the next
patch, which centralizes the definition in <linux/kernel.h>.
Signed-off-by: Alex Elder <elder@linaro.org>
Cc: Sage Weil <sage@inktank.com>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 22e7478ddbcb670e33fab72d0bbe7c394c3a2c84 upstream.
Prior to commit 0e4f6a791b (Fix reiserfs_file_release()), reiserfs
truncates serialized on i_mutex. They mostly still do, with the exception
of reiserfs_file_release. That blocks out other writers via the tailpack
mutex and the inode openers counter adjusted in reiserfs_file_open.
However, NFS will call reiserfs_setattr without having called ->open, so
we end up with a race when nfs is calling ->setattr while another
process is releasing the file. Ultimately, it triggers the
BUG_ON(inode->i_size != new_file_size) check in maybe_indirect_to_direct.
The solution is to pull the lock into reiserfs_setattr to encompass the
truncate_setsize call as well.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 01d8885785a60ae8f4c37b0ed75bdc96d0fc6a44 upstream.
jdm-20004 reiserfs_delete_xattrs: Couldn't delete all xattrs (-2)
The -ENOENT is due to readdir calling dir_emit on the same entry twice.
If the dir_emit callback sleeps and the tree is changed underneath us,
we won't be able to trust deh_offset(deh) anymore. We need to save
next_pos before we might sleep so we can find the next entry.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 672fe15d091ce76d6fb98e489962e9add7c1ba4c upstream.
Since remove_proc_entry() started to wait for IO in progress (i.e.
since 2007 or so), the locking in fs/reiserfs/proc.c became wrong;
if procfs read happens between the moment when umount() locks the
victim superblock and removal of /proc/fs/reiserfs/<device>/*,
we'll get a deadlock - read will wait for s_umount (in sget(),
called by r_start()), while umount will wait in remove_proc_entry()
for that read to finish, holding s_umount all along.
Fortunately, the same change allows a much simpler race avoidance -
all we need to do is remove the procfs entries in the very beginning
of reiserfs ->kill_sb(); that'll guarantee that pointer to superblock
will remain valid for the duration for procfs IO, so we don't need
sget() to keep the sucker alive. As the matter of fact, we can
get rid of the home-grown iterator completely, and use single_open()
instead.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reiserfs is currently able to be deadlocked by having two NFS clients
where one has removed and recreated a file and another is accessing the
file with an open file handle.
If one client deletes and recreates a file with timing such that the
recreated file obtains the same [dirid, objectid] pair as the original
file while another client accesses the file via file handle, the create
and lookup can race and deadlock if the lookup manages to create the
in-memory inode first.
The create thread, in insert_inode_locked4, will hold the write lock
while waiting on the other inode to be unlocked. The lookup thread,
anywhere in the iget path, will release and reacquire the write lock while
it schedules. If it needs to reacquire the lock while the create thread
has it, it will never be able to make forward progress because it needs
to reacquire the lock before ultimately unlocking the inode.
This patch drops the write lock across the insert_inode_locked4 call so
that the ordering of inode_wait -> write lock is retained. Since this
would have been the case before the BKL push-down, this is safe.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
reiserfs_chown_xattrs() takes the iattr struct passed into ->setattr
and uses it to iterate over all the attrs associated with a file to change
ownership of xattrs (and transfer quota associated with the xattr files).
When the setuid bit is cleared during chown, ATTR_MODE and iattr->ia_mode
are passed to all the xattrs as well. This means that the xattr directory
will have S_IFREG added to its mode bits.
This has been prevented in practice by a missing IS_PRIVATE check
in reiserfs_acl_chmod, which caused a double-lock to occur while holding
the write lock. Since the file system was completely locked up, the
writeout of the corrupted mode never happened.
This patch temporarily clears everything but ATTR_UID|ATTR_GID for the
calls to reiserfs_setattr and adds the missing IS_PRIVATE check.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
After sleeping for filldir(), we check to see if the file system has
changed and research. The next_pos pointer is updated but its value
isn't pushed into the key used for the search itself. As a result,
the search returns the same item that the last cycle of the loop did
and filldir() is called multiple times with the same data.
The end result is that the buffer can contain the same name multiple
times. This can be returned to userspace or used internally in the
xattr code where it can manifest with the following warning:
jdm-20004 reiserfs_delete_xattrs: Couldn't delete all xattrs (-2)
reiserfs_for_each_xattr uses reiserfs_readdir_dentry to iterate over
the xattr names and ends up trying to unlink the same name twice. The
second attempt fails with -ENOENT and the error is returned. At some
point I'll need to add support into reiserfsck to remove the orphaned
directories left behind when this occurs.
The fix is to push the value into the key before researching.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Merge more incoming from Andrew Morton:
- Various fixes which were stalled or which I picked up recently
- A large rotorooting of the AIO code. Allegedly to improve
performance but I don't really have good performance numbers (I might
have lost the email) and I can't raise Kent today. I held this out
of 3.9 and we could give it another cycle if it's all too late/scary.
I ended up taking only the first two thirds of the AIO rotorooting. I
left the percpu parts and the batch completion for later. - Linus
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (33 commits)
aio: don't include aio.h in sched.h
aio: kill ki_retry
aio: kill ki_key
aio: give shared kioctx fields their own cachelines
aio: kill struct aio_ring_info
aio: kill batch allocation
aio: change reqs_active to include unreaped completions
aio: use cancellation list lazily
aio: use flush_dcache_page()
aio: make aio_read_evt() more efficient, convert to hrtimers
wait: add wait_event_hrtimeout()
aio: refcounting cleanup
aio: make aio_put_req() lockless
aio: do fget() after aio_get_req()
aio: dprintk() -> pr_debug()
aio: move private stuff out of aio.h
aio: add kiocb_cancel()
aio: kill return value of aio_complete()
char: add aio_{read,write} to /dev/{null,zero}
aio: remove retry-based AIO
...
same story as with the previous patches - note that return
value of blkdev_close() is lost, since there's nowhere the
caller (__fput()) could return it to.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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
...
Don't access the proc_dir_entry in ReiserFS's r_open(), r_start() r_show()
procfs interface functions.
ReiserFS stores the ->show() method pointer in PDE->data and the super_block
pointer in PDE->parent->data. This isn't changing.
Currently, ReiserFS passes the PDE pointer into seq_file::private from
r_open() so that r_start() and r_show() can then access it. Instead, use
seq_open_private() to allocate a two-pointer struct that's passed through
seq_file::private and put the ->show() method and the sb pointers in there.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: reiserfs-devel@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Add proc_mkdir_data() to allow procfs directories to be created that are
annotated at the time of creation with private data rather than doing this
post-creation. This means no access is then required to the proc_dir_entry
struct to set this.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
cc: Neela Syam Kolli <megaraidlinux@lsi.com>
cc: Jerry Chuang <jerry-chuang@realtek.com>
cc: linux-scsi@vger.kernel.org
cc: devel@driverdev.osuosl.org
cc: linux-wireless@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
After commit 21d8a15a (lookup_one_len: don't accept . and ..) reiserfs
started failing to delete xattrs from inode. This was due to a buggy
test for '.' and '..' in fill_with_dentries() which resulted in passing
'.' and '..' entries to lookup_one_len() in some cases. That returned
error and so we failed to iterate over all xattrs of and inode.
Fix the test in fill_with_dentries() along the lines of the one in
lookup_one_len().
Reported-by: Pawel Zawora <pzawora@gmail.com>
CC: stable@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
Modify the request_module to prefix the file system type with "fs-"
and add aliases to all of the filesystems that can be built as modules
to match.
A common practice is to build all of the kernel code and leave code
that is not commonly needed as modules, with the result that many
users are exposed to any bug anywhere in the kernel.
Looking for filesystems with a fs- prefix limits the pool of possible
modules that can be loaded by mount to just filesystems trivially
making things safer with no real cost.
Using aliases means user space can control the policy of which
filesystem modules are auto-loaded by editing /etc/modprobe.d/*.conf
with blacklist and alias directives. Allowing simple, safe,
well understood work-arounds to known problematic software.
This also addresses a rare but unfortunate problem where the filesystem
name is not the same as it's module name and module auto-loading
would not work. While writing this patch I saw a handful of such
cases. The most significant being autofs that lives in the module
autofs4.
This is relevant to user namespaces because we can reach the request
module in get_fs_type() without having any special permissions, and
people get uncomfortable when a user specified string (in this case
the filesystem type) goes all of the way to request_module.
After having looked at this issue I don't think there is any
particular reason to perform any filtering or permission checks beyond
making it clear in the module request that we want a filesystem
module. The common pattern in the kernel is to call request_module()
without regards to the users permissions. In general all a filesystem
module does once loaded is call register_filesystem() and go to sleep.
Which means there is not much attack surface exposed by loading a
filesytem module unless the filesystem is mounted. In a user
namespace filesystems are not mounted unless .fs_flags = FS_USERNS_MOUNT,
which most filesystems do not set today.
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Acked-by: Kees Cook <keescook@chromium.org>
Reported-by: Kees Cook <keescook@google.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
This patch is a follow up on below patch:
[PATCH] exportfs: add FILEID_INVALID to indicate invalid fid_type
commit: 216b6cbdcb
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Vivek Trivedi <t.vivek@samsung.com>
Acked-by: Steven Whitehouse <swhiteho@redhat.com>
Acked-by: Sage Weil <sage@inktank.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Removed vmtruncate
Signed-off-by: Marco Stornelli <marco.stornelli@gmail.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Calls into highlevel quota code cannot happen under the write lock. These
calls take dqio_mutex which ranks above write lock. So drop write lock
before calling back into quota code.
CC: stable@vger.kernel.org # >= 3.0
Signed-off-by: Jan Kara <jack@suse.cz>
Calls into reiserfs journalling code and reiserfs_get_block() need to
be protected with write lock. We remove write lock around calls to high
level quota code in the next patch so these paths would suddently become
unprotected.
CC: stable@vger.kernel.org # >= 3.0
Signed-off-by: Jan Kara <jack@suse.cz>
In reiserfs_quota_on() we do quite some work - for example unpacking
tail of a quota file. Thus we have to hold write lock until a moment
we call back into the quota code.
CC: stable@vger.kernel.org # >= 3.0
Signed-off-by: Jan Kara <jack@suse.cz>
When remounting reiserfs dquot_suspend() or dquot_resume() can be called.
These functions take dqonoff_mutex which ranks above write lock so we have
to drop it before calling into quota code.
CC: stable@vger.kernel.org # >= 3.0
Signed-off-by: Jan Kara <jack@suse.cz>
Fuzzing with trinity oopsed on the 1st instruction of shmem_fh_to_dentry(),
u64 inum = fid->raw[2];
which is unhelpfully reported as at the end of shmem_alloc_inode():
BUG: unable to handle kernel paging request at ffff880061cd3000
IP: [<ffffffff812190d0>] shmem_alloc_inode+0x40/0x40
Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
Call Trace:
[<ffffffff81488649>] ? exportfs_decode_fh+0x79/0x2d0
[<ffffffff812d77c3>] do_handle_open+0x163/0x2c0
[<ffffffff812d792c>] sys_open_by_handle_at+0xc/0x10
[<ffffffff83a5f3f8>] tracesys+0xe1/0xe6
Right, tmpfs is being stupid to access fid->raw[2] before validating that
fh_len includes it: the buffer kmalloc'ed by do_sys_name_to_handle() may
fall at the end of a page, and the next page not be present.
But some other filesystems (ceph, gfs2, isofs, reiserfs, xfs) are being
careless about fh_len too, in fh_to_dentry() and/or fh_to_parent(), and
could oops in the same way: add the missing fh_len checks to those.
Reported-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Sage Weil <sage@inktank.com>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Pull ext3 & udf fixes from Jan Kara:
"Shortlog pretty much says it all.
The interesting bits are UDF support for direct IO and ext3 fix for a
long standing oops in data=journal mode."
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
jbd: Fix assertion failure in commit code due to lacking transaction credits
UDF: Add support for O_DIRECT
ext3: Replace 0 with NULL for pointer in super.c file
udf: add writepages support for udf
ext3: don't clear orphan list on ro mount with errors
reiserfs: Make reiserfs_xattr_handlers static
Pull vfs update from Al Viro:
- big one - consolidation of descriptor-related logics; almost all of
that is moved to fs/file.c
(BTW, I'm seriously tempted to rename the result to fd.c. As it is,
we have a situation when file_table.c is about handling of struct
file and file.c is about handling of descriptor tables; the reasons
are historical - file_table.c used to be about a static array of
struct file we used to have way back).
A lot of stray ends got cleaned up and converted to saner primitives,
disgusting mess in android/binder.c is still disgusting, but at least
doesn't poke so much in descriptor table guts anymore. A bunch of
relatively minor races got fixed in process, plus an ext4 struct file
leak.
- related thing - fget_light() partially unuglified; see fdget() in
there (and yes, it generates the code as good as we used to have).
- also related - bits of Cyrill's procfs stuff that got entangled into
that work; _not_ all of it, just the initial move to fs/proc/fd.c and
switch of fdinfo to seq_file.
- Alex's fs/coredump.c spiltoff - the same story, had been easier to
take that commit than mess with conflicts. The rest is a separate
pile, this was just a mechanical code movement.
- a few misc patches all over the place. Not all for this cycle,
there'll be more (and quite a few currently sit in akpm's tree)."
Fix up trivial conflicts in the android binder driver, and some fairly
simple conflicts due to two different changes to the sock_alloc_file()
interface ("take descriptor handling from sock_alloc_file() to callers"
vs "net: Providing protocol type via system.sockprotoname xattr of
/proc/PID/fd entries" adding a dentry name to the socket)
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (72 commits)
MAX_LFS_FILESIZE should be a loff_t
compat: fs: Generic compat_sys_sendfile implementation
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
btrfs: reada_extent doesn't need kref for refcount
coredump: move core dump functionality into its own file
coredump: prevent double-free on an error path in core dumper
usb/gadget: fix misannotations
fcntl: fix misannotations
ceph: don't abuse d_delete() on failure exits
hypfs: ->d_parent is never NULL or negative
vfs: delete surplus inode NULL check
switch simple cases of fget_light to fdget
new helpers: fdget()/fdput()
switch o2hb_region_dev_write() to fget_light()
proc_map_files_readdir(): don't bother with grabbing files
make get_file() return its argument
vhost_set_vring(): turn pollstart/pollstop into bool
switch prctl_set_mm_exe_file() to fget_light()
switch xfs_find_handle() to fget_light()
switch xfs_swapext() to fget_light()
...
There's no reason to call rcu_barrier() on every
deactivate_locked_super(). We only need to make sure that all delayed rcu
free inodes are flushed before we destroy related cache.
Removing rcu_barrier() from deactivate_locked_super() affects some fast
paths. E.g. on my machine exit_group() of a last process in IPC
namespace takes 0.07538s. rcu_barrier() takes 0.05188s of that time.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Pull user namespace changes from Eric Biederman:
"This is a mostly modest set of changes to enable basic user namespace
support. This allows the code to code to compile with user namespaces
enabled and removes the assumption there is only the initial user
namespace. Everything is converted except for the most complex of the
filesystems: autofs4, 9p, afs, ceph, cifs, coda, fuse, gfs2, ncpfs,
nfs, ocfs2 and xfs as those patches need a bit more review.
The strategy is to push kuid_t and kgid_t values are far down into
subsystems and filesystems as reasonable. Leaving the make_kuid and
from_kuid operations to happen at the edge of userspace, as the values
come off the disk, and as the values come in from the network.
Letting compile type incompatible compile errors (present when user
namespaces are enabled) guide me to find the issues.
The most tricky areas have been the places where we had an implicit
union of uid and gid values and were storing them in an unsigned int.
Those places were converted into explicit unions. I made certain to
handle those places with simple trivial patches.
Out of that work I discovered we have generic interfaces for storing
quota by projid. I had never heard of the project identifiers before.
Adding full user namespace support for project identifiers accounts
for most of the code size growth in my git tree.
Ultimately there will be work to relax privlige checks from
"capable(FOO)" to "ns_capable(user_ns, FOO)" where it is safe allowing
root in a user names to do those things that today we only forbid to
non-root users because it will confuse suid root applications.
While I was pushing kuid_t and kgid_t changes deep into the audit code
I made a few other cleanups. I capitalized on the fact we process
netlink messages in the context of the message sender. I removed
usage of NETLINK_CRED, and started directly using current->tty.
Some of these patches have also made it into maintainer trees, with no
problems from identical code from different trees showing up in
linux-next.
After reading through all of this code I feel like I might be able to
win a game of kernel trivial pursuit."
Fix up some fairly trivial conflicts in netfilter uid/git logging code.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (107 commits)
userns: Convert the ufs filesystem to use kuid/kgid where appropriate
userns: Convert the udf filesystem to use kuid/kgid where appropriate
userns: Convert ubifs to use kuid/kgid
userns: Convert squashfs to use kuid/kgid where appropriate
userns: Convert reiserfs to use kuid and kgid where appropriate
userns: Convert jfs to use kuid/kgid where appropriate
userns: Convert jffs2 to use kuid and kgid where appropriate
userns: Convert hpfs to use kuid and kgid where appropriate
userns: Convert btrfs to use kuid/kgid where appropriate
userns: Convert bfs to use kuid/kgid where appropriate
userns: Convert affs to use kuid/kgid wherwe appropriate
userns: On alpha modify linux_to_osf_stat to use convert from kuids and kgids
userns: On ia64 deal with current_uid and current_gid being kuid and kgid
userns: On ppc convert current_uid from a kuid before printing.
userns: Convert s390 getting uid and gid system calls to use kuid and kgid
userns: Convert s390 hypfs to use kuid and kgid where appropriate
userns: Convert binder ipc to use kuids
userns: Teach security_path_chown to take kuids and kgids
userns: Add user namespace support to IMA
userns: Convert EVM to deal with kuids and kgids in it's hmac computation
...
- Pass the user namespace the uid and gid values in the xattr are stored
in into posix_acl_from_xattr.
- Pass the user namespace kuid and kgid values should be converted into
when storing uid and gid values in an xattr in posix_acl_to_xattr.
- Modify all callers of posix_acl_from_xattr and posix_acl_to_xattr to
pass in &init_user_ns.
In the short term this change is not strictly needed but it makes the
code clearer. In the longer term this change is necessary to be able to
mount filesystems outside of the initial user namespace that natively
store posix acls in the linux xattr format.
Cc: Theodore Tso <tytso@mit.edu>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andreas Dilger <adilger.kernel@dilger.ca>
Cc: Jan Kara <jack@suse.cz>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Silences the following sparse warning: fs/reiserfs/xattr.c:899:28: warning:
symbol 'reiserfs_xattr_handlers' was not declared. Should it be static?
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jan Kara <jack@suse.cz>
The BKL push-down for reiserfs made lock recursion a special case that needs
to be handled explicitly. One of the cases that was unhandled is dropping
the quota during inode eviction. Both reiserfs_evict_inode and
reiserfs_write_dquot take the write lock, but when the journal lock is
taken it only drops one the references. The locking rules are that the journal
lock be acquired before the write lock so leaving the reference open leads
to a ABBA deadlock.
This patch pushes the unlock up before clear_inode and avoids the recursive
locking.
Another ABBA situation can occur when the write lock is dropped while reading
the bitmap buffer while in the quota code. When the lock is reacquired, it
will deadlock against dquot->dq_lock and dqopt->dqio_mutex in the dquot_acquire
path. It's safe to retain the lock across the read and should be cached under
write load.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Since the moment writes to quota files are using block device page cache and
space for quota structures is reserved at the moment they are first accessed we
have no reason to sync quota before inode writeback. In fact this order is now
only harmful since quota information can easily change during inode writeback
(either because conversion of delayed-allocated extents or simply because of
allocation of new blocks for simple filesystems not using page_mkwrite).
So move syncing of quota information after writeback of inodes into ->sync_fs
method. This way we do not have to use ->quota_sync callback which is primarily
intended for use by quotactl syscall anyway and we get rid of calling
->sync_fs() twice unnecessarily. We skip quota syncing for OCFS2 since it does
proper quota journalling in all cases (unlike ext3, ext4, and reiserfs which
also support legacy non-journalled quotas) and thus there are no dirty quota
structures.
CC: "Theodore Ts'o" <tytso@mit.edu>
CC: Joel Becker <jlbec@evilplan.org>
CC: reiserfs-devel@vger.kernel.org
Acked-by: Steven Whitehouse <swhiteho@redhat.com>
Acked-by: Dave Kleikamp <shaggy@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Pass mount flags to sget() so that it can use them in initialising a new
superblock before the set function is called. They could also be passed to the
compare function.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
boolean "does it have to be exclusive?" flag is passed instead;
Local filesystem should just ignore it - the object is guaranteed
not to be there yet.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Just the flags; only NFS cares even about that, but there are
legitimate uses for such argument. And getting rid of that
completely would require splitting ->lookup() into a couple
of methods (at least), so let's leave that alone for now...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This patch stops reiserfs using the VFS 'write_super()' method along with the
s_dirt flag, because they are on their way out.
The whole "superblock write-out" VFS infrastructure is served by the
'sync_supers()' kernel thread, which wakes up every 5 (by default) seconds and
writes out all dirty superblock using the '->write_super()' call-back. But the
problem with this thread is that it wastes power by waking up the system every
5 seconds, even if there are no diry superblocks, or there are no client
file-systems which would need this (e.g., btrfs does not use
'->write_super()'). So we want to kill it completely and thus, we need to make
file-systems to stop using the '->write_super()' VFS service, and then remove
it together with the kernel thread.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
The 'journal_mark_dirty()' function currently first marks the superblock as
dirty by setting 's_dirt' to 1, then does various sanity checks and returns,
then actuall does all the magic with the journal.
This is not an ideal order, though. It makes more sense to first do all the
checks, then do all the internal stuff, and at the end notify the VFS that the
superblock is now dirty.
This patch moves the 's_dirt = 1' assignment from the very beginning of this
function to the very end.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
The 'reiserfs_resize()' function marks the superblock as dirty by assigning 1
to 's_dirt' and then calls 'journal_mark_dirty()' which does the same. Thus,
we can remove the assignment from 'reiserfs_resize()'.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Turn 'reiserfs_flush_old_commits()' into a void function because the callers
do not cares about what it returns anyway.
We are going to remove the 'sb->s_dirt' field completely and this patch is a
small step towards this direction.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
We have the reiserfs superblock pointer in the 'sbi' variable in this
function, no need to use the 'REISERFS_SB(s)' macro which is the same.
This is jut a small clean-up.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
pass inode + parent's inode or NULL instead of dentry + bool saying
whether we want the parent or not.
NOTE: that needs ceph fix folded in.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Jan Kara
Kaushal Kumar
Theodore Ts'o
Alex Elder
Jeff Mahoney
Al Viro
Jeff Mahoney
Linus Torvalds
Kent Overstreet
David Howells
Ionut-Gabriel Radu
Eric W. Biederman
Namjae Jeon
Marco Stornelli
Hugh Dickins
Kirill A. Shutemov
Sachin Kamat
Artem Bityutskiy