Since commit 60cad4e67b
"bnx2x: VF RSS support - VF side" fails to compile w/o
CONFIG_BNX2X_SRIOV option.
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In commit 0f7cc9a3 "tcp: increase throughput when reordering is high",
it only allows cwnd to increase in Open state. This mistakenly disables
slow start after timeout (CA_Loss). Moreover cwnd won't grow if the
state moves from Disorder to Open later in tcp_fastretrans_alert().
Therefore the correct logic should be to allow cwnd to grow as long
as the data is received in order in Open, Loss, or even Disorder state.
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix finer-grained control and let only a whitelist of allowed netlink
protocols pass, in our case related to networking. If later on, other
subsystems decide they want to add their protocol as well to the list
of allowed protocols they shall simply add it. While at it, we also
need to tell what protocol is in use otherwise BPF_S_ANC_PROTOCOL can
not pick it up (as it's not filled out).
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull Tile arch updates from Chris Metcalf:
"These changes bring in a bunch of new functionality that has been
maintained internally at Tilera over the last year, plus other stray
bits of work that I've taken into the tile tree from other folks.
The changes include some PCI root complex work, interrupt-driven
console support, support for performing fast-path unaligned data
fixups by kernel-based JIT code generation, CONFIG_PREEMPT support,
vDSO support for gettimeofday(), a serial driver for the tilegx
on-chip UART, KGDB support, more optimized string routines, support
for ftrace and kprobes, improved ASLR, and many bug fixes.
We also remove support for the old TILE64 chip, which is no longer
buildable"
* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: (85 commits)
tile: refresh tile defconfig files
tile: rework <asm/cmpxchg.h>
tile PCI RC: make default consistent DMA mask 32-bit
tile: add null check for kzalloc in tile/kernel/setup.c
tile: make __write_once a synonym for __read_mostly
tile: remove support for TILE64
tile: use asm-generic/bitops/builtin-*.h
tile: eliminate no-op "noatomichash" boot argument
tile: use standard tile_bundle_bits type in traps.c
tile: simplify code referencing hypervisor API addresses
tile: change <asm/system.h> to <asm/switch_to.h> in comments
tile: mark pcibios_init() as __init
tile: check for correct compiler earlier in asm-offsets.c
tile: use standard 'generic-y' model for <asm/hw_irq.h>
tile: use asm-generic version of <asm/local64.h>
tile PCI RC: add comment about "PCI hole" problem
tile: remove DEBUG_EXTRA_FLAGS kernel config option
tile: add virt_to_kpte() API and clean up and document behavior
tile: support FRAME_POINTER
tile: support reporting Tilera hypervisor statistics
...
ignored by the CPU).
- Kernel mode NEON (no users for arm64 yet but work in progress).
- arm64 kernel Image header extended to accommodate future EFI stub.
- Remove BogoMIPS reporting (not relevant, it's just the timer
frequency).
- Clean-up (EM_AARCH64/EM_ARM to elf-em.h, ELF notes in read-only
segment, unused variable).
- Bug-fixes (RAM boundaries not 2MB aligned, perf, includes).
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Merge tag 'arm64-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64
Pull ARM64 update from Catalin Marinas:
- User tagged pointers support (top 8-bit of user pointers
automatically ignored by the CPU).
- Kernel mode NEON (no users for arm64 yet but work in progress).
- arm64 kernel Image header extended to accommodate future EFI stub.
- Remove BogoMIPS reporting (not relevant, it's just the timer
frequency).
- Clean-up (EM_AARCH64/EM_ARM to elf-em.h, ELF notes in read-only
segment, unused variable).
- Bug-fixes (RAM boundaries not 2MB aligned, perf, includes).
* tag 'arm64-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
Documentation/arm64: clarify requirements for DTB placement
arm64: mm: permit use of tagged pointers at EL0
Move the EM_ARM and EM_AARCH64 definitions to uapi/linux/elf-em.h
arm64: Remove unused cpu_name ascii in arch/arm64/mm/proc.S
arm64: delay: don't bother reporting bogomips in /proc/cpuinfo
arm64: Fix mapping of memory banks not ending on a PMD_SIZE boundary
arm64: move elf notes into readonly segment
arm64: Enable interrupts in the EL0 undef handler
arm64: Expand arm64 image header
ARM64: include: asm: include "asm/types.h" in "pgtable-2level-types.h" and "pgtable-3level-types.h"
arm64: add support for kernel mode NEON
arm64: perf: fix ARMv8 EVTYPE_MASK to include NSH bit
arm64: perf: fix group validation when using enable_on_exec
Pull powerpc updates from Ben Herrenschmidt:
"Here's the powerpc batch for this merge window. Some of the
highlights are:
- A bunch of endian fixes ! We don't have full LE support yet in that
release but this contains a lot of fixes all over arch/powerpc to
use the proper accessors, call the firmware with the right endian
mode, etc...
- A few updates to our "powernv" platform (non-virtualized, the one
to run KVM on), among other, support for bridging the P8 LPC bus
for UARTs, support and some EEH fixes.
- Some mpc51xx clock API cleanups in preparation for a clock API
overhaul
- A pile of cleanups of our old math emulation code, including better
support for using it to emulate optional FP instructions on
embedded chips that otherwise have a HW FPU.
- Some infrastructure in selftest, for powerpc now, but could be
generalized, initially used by some tests for our perf instruction
counting code.
- A pile of fixes for hotplug on pseries (that was seriously
bitrotting)
- The usual slew of freescale embedded updates, new boards, 64-bit
hiberation support, e6500 core PMU support, etc..."
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (146 commits)
powerpc: Correct FSCR bit definitions
powerpc/xmon: Fix printing of set of CPUs in xmon
powerpc/pseries: Move lparcfg.c to platforms/pseries
powerpc/powernv: Return secondary CPUs to firmware on kexec
powerpc/btext: Fix CONFIG_PPC_EARLY_DEBUG_BOOTX on ppc32
powerpc: Cleanup handling of the DSCR bit in the FSCR register
powerpc/pseries: Child nodes are not detached by dlpar_detach_node
powerpc/pseries: Add mising of_node_put in delete_dt_node
powerpc/pseries: Make dlpar_configure_connector parent node aware
powerpc/pseries: Do all node initialization in dlpar_parse_cc_node
powerpc/pseries: Fix parsing of initial node path in update_dt_node
powerpc/pseries: Pack update_props_workarea to map correctly to rtas buffer header
powerpc/pseries: Fix over writing of rtas return code in update_dt_node
powerpc/pseries: Fix creation of loop in device node property list
powerpc: Skip emulating & leave interrupts off for kernel program checks
powerpc: Add more exception trampolines for hypervisor exceptions
powerpc: Fix location and rename exception trampolines
powerpc: Add more trap names to xmon
powerpc/pseries: Add a warning in the case of cross-cpu VPA registration
powerpc: Update the 00-Index in Documentation/powerpc
...
These are based on the current shipping versions of the config files
from Tilera, as synced up to the tip, so are a better starting point
for folks who want a default configuration.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
The macrology in cmpxchg.h was designed to allow arbitrary pointer
and integer values to be passed through the routines. To support
cmpxchg() on 64-bit values on the 32-bit tilepro architecture, we
used the idiom "(typeof(val))(typeof(val-val))". This way, in the
"size 8" branch of the switch, when the underlying cmpxchg routine
returns a 64-bit quantity, we cast it first to a typeof(val-val)
quantity (i.e. size_t if "val" is a pointer) with no warnings about
casting between pointers and integers of different sizes, then cast
onwards to typeof(val), again with no warnings. If val is not a
pointer type, the additional cast is a no-op. We can't replace the
typeof(val-val) cast with (for example) unsigned long, since then if
"val" is really a 64-bit type, we cast away the high bits.
HOWEVER, this fails with current gcc (through 4.7 at least) if "val"
is a pointer to an incomplete type. Unfortunately gcc isn't smart
enough to realize that "val - val" will always be a size_t type
even if it's an incomplete type pointer.
Accordingly, I've reworked the way we handle the casting. We have
given up the ability to use cmpxchg() on 64-bit values on tilepro,
which is OK in the kernel since we should use cmpxchg64() explicitly
on such values anyway. As a result, I can just use simple "unsigned
long" casts internally.
As I reworked it, I realized it would be cleaner to move the
architecture-specific conditionals for cmpxchg and xchg out of the
atomic.h headers and into cmpxchg, and then use the cmpxchg() and
xchg() primitives directly in atomic.h and elsewhere. This allowed
the cmpxchg.h header to stand on its own without relying on the
implicit include of it that is performed by <asm/atomic.h>.
It also allowed collapsing the atomic_xchg/atomic_cmpxchg routines
from atomic_{32,64}.h into atomic.h.
I improved the tests that guard the allowed size of the arguments
to the routines to use a __compiletime_error() test. (By avoiding
the use of BUILD_BUG, I could include cmpxchg.h into bitops.h as
well and use the macros there, which is otherwise impossible due
to include order dependency issues.)
The tilepro _atomic_xxx internal methods were previously set up to
take atomic_t and atomic64_t arguments, which isn't as convenient
with the new model, so I modified them to take int or u64 arguments,
which is consistent with how they used the arguments internally
anyway, so provided some nice simplification there too.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Pull trivial tree from Jiri Kosina:
"The usual trivial updates all over the tree -- mostly typo fixes and
documentation updates"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (52 commits)
doc: Documentation/cputopology.txt fix typo
treewide: Convert retrun typos to return
Fix comment typo for init_cma_reserved_pageblock
Documentation/trace: Correcting and extending tracepoint documentation
mm/hotplug: fix a typo in Documentation/memory-hotplug.txt
power: Documentation: Update s2ram link
doc: fix a typo in Documentation/00-INDEX
Documentation/printk-formats.txt: No casts needed for u64/s64
doc: Fix typo "is is" in Documentations
treewide: Fix printks with 0x%#
zram: doc fixes
Documentation/kmemcheck: update kmemcheck documentation
doc: documentation/hwspinlock.txt fix typo
PM / Hibernate: add section for resume options
doc: filesystems : Fix typo in Documentations/filesystems
scsi/megaraid fixed several typos in comments
ppc: init_32: Fix error typo "CONFIG_START_KERNEL"
treewide: Add __GFP_NOWARN to k.alloc calls with v.alloc fallbacks
page_isolation: Fix a comment typo in test_pages_isolated()
doc: fix a typo about irq affinity
...
Pull HID updates from Jiri Kosina:
"Highlights:
- conversion of HID subsystem to use devm-based resource management,
from Benjamin Tissoires
- i2c-hid support for DT bindings, from Benjamin Tissoires
- much improved support for Win8-multitouch devices, from Benjamin
Tissoires
- cleanup of core code using common hidinput_input_event(), from
David Herrmann
- fix for bug in implement() access to the bit stream (causing oops)
that has been present in the code for ages, but devices that are
able to trigger it have started to appear only now, from Jiri
Kosina
- fixes for CVE-2013-2899, CVE-2013-2898, CVE-2013-2896,
CVE-2013-2892, CVE-2013-2888 (all triggerable only by specially
crafted malicious HW devices plugged into the system), from Kees
Cook
- hidraw oops fix, from Manoj Chourasia
- various smaller fixes here and there, support for a bunch of new
devices by various contributors"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (53 commits)
HID: MAINTAINERS: add roccat drivers
HID: hid-sensor-hub: change kmalloc + memcpy by kmemdup
HID: hid-sensor-hub: move to devm_kzalloc
HID: hid-sensor-hub: fix indentation accross the code
HID: move HID_REPORT_TYPES closer to the report-definitions
HID: check for NULL field when setting values
HID: picolcd_core: validate output report details
HID: sensor-hub: validate feature report details
HID: ntrig: validate feature report details
HID: pantherlord: validate output report details
HID: hid-wiimote: print small buffers via %*phC
HID: uhid: improve uhid example client
HID: Correct the USB IDs for the new Macbook Air 6
HID: wiimote: add support for Guitar-Hero guitars
HID: wiimote: add support for Guitar-Hero drums
Input: introduce BTN/ABS bits for drums and guitars
HID: battery: don't do DMA from stack
HID: roccat: add support for KonePureOptical v2
HID: picolcd: Prevent NULL pointer dereference on _remove()
HID: usbhid: quirk for N-Trig DuoSense Touch Screen
...
Pull ext3, reiserfs, udf & isofs fixes from Jan Kara:
"The contains a bunch of ext3 cleanups and minor improvements, major
reiserfs locking changes which should hopefully fix deadlocks
introduced by BKL removal, and udf/isofs changes to refuse mounting fs
rw instead of mounting it ro automatically which makes eject button
work as expected for all media (see the changelog for why userspace
should be ok with this change)"
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
jbd: use a single printk for jbd_debug()
reiserfs: locking, release lock around quota operations
reiserfs: locking, handle nested locks properly
reiserfs: locking, push write lock out of xattr code
jbd: relocate assert after state lock in journal_commit_transaction()
udf: Refuse RW mount of the filesystem instead of making it RO
udf: Standardize return values in mount sequence
isofs: Refuse RW mount of the filesystem instead of making it RO
ext3: allow specifying external journal by pathname mount option
jbd: remove unneeded semicolon
This patch-set includes the following major enhancement patches.
o support inline xattrs
o add sysfs support to control GCs explicitly
o add proc entry to show the current segment usage information
o improve the GC/SSR performance
The other bug fixes are as follows.
o avoid the overflow on status calculation
o fix some error handling routines
o fix inconsistent xattr states after power-off-recovery
o fix incorrect xattr node offset definition
o fix deadlock condition in fsync
o fix the fdatasync routine for power-off-recovery
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Merge tag 'for-f2fs-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
"This patch-set includes the following major enhancement patches:
- support inline xattrs
- add sysfs support to control GCs explicitly
- add proc entry to show the current segment usage information
- improve the GC/SSR performance
The other bug fixes are as follows:
- avoid the overflow on status calculation
- fix some error handling routines
- fix inconsistent xattr states after power-off-recovery
- fix incorrect xattr node offset definition
- fix deadlock condition in fsync
- fix the fdatasync routine for power-off-recovery"
* tag 'for-f2fs-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (40 commits)
f2fs: optimize gc for better performance
f2fs: merge more bios of node block writes
f2fs: avoid an overflow during utilization calculation
f2fs: trigger GC when there are prefree segments
f2fs: use strncasecmp() simplify the string comparison
f2fs: fix omitting to update inode page
f2fs: support the inline xattrs
f2fs: add the truncate_xattr_node function
f2fs: introduce __find_xattr for readability
f2fs: reserve the xattr space dynamically
f2fs: add flags for inline xattrs
f2fs: fix error return code in init_f2fs_fs()
f2fs: fix wrong BUG_ON condition
f2fs: fix memory leak when init f2fs filesystem fail
f2fs: fix a compound statement label error
f2fs: avoid writing inode redundantly when creating a file
f2fs: alloc_page() doesn't return an ERR_PTR
f2fs: should cover i_xattr_nid with its xattr node page lock
f2fs: check the free space first in new_node_page
f2fs: clean up the needless end 'return' of void function
...
Fix the following smatch warning:
emc6w201.c:52:26: warning: symbol 'subfeature' was not declared.
Should it be static?
'enum { } subtype' declares an enum as (global) variable which we don't want.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
w83792d was written by me in 2004, I'd like to update my first name
into my current one to keep consistent, and delete invalid address.
Signed-off-by: Shane Huang <shane.huang@amd.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Pull ARM updates from Russell King:
"This set includes adding support for Neon acceleration of RAID6 XOR
code from Ard Biesheuvel, cache flushing and barrier updates from Will
Deacon, and a cleanup to the ARM debug code which reduces the amount
of code by about 500 lines.
A few other cleanups, such as constifying the machine descriptors
which already shouldn't be written to, cleaning up the printing of the
L2 cache size"
* 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (55 commits)
ARM: 7826/1: debug: support debug ll on hisilicon soc
ARM: 7830/1: delay: don't bother reporting bogomips in /proc/cpuinfo
ARM: 7829/1: Add ".text.unlikely" and ".text.hot" to arm unwind tables
ARM: 7828/1: ARMv7-M: implement restart routine common to all v7-M machines
ARM: 7827/1: highbank: fix debug uart virtual address for LPAE
ARM: 7823/1: errata: workaround Cortex-A15 erratum 773022
ARM: 7806/1: allow DEBUG_UNCOMPRESS for Tegra
ARM: 7793/1: debug: use generic option for ep93xx PL10x debug port
ARM: debug: move SPEAr debug to generic PL01x code
ARM: debug: move davinci debug to generic 8250 code
ARM: debug: move keystone debug to generic 8250 code
ARM: debug: remove DEBUG_ROCKCHIP_UART
ARM: debug: provide generic option choices for 8250 and PL01x ports
ARM: debug: move PL01X debug include into arch/arm/include/debug/
ARM: debug: provide PL01x debug uart phys/virt address configuration options
ARM: debug: add support for word accesses to debug/8250.S
ARM: debug: move 8250 debug include into arch/arm/include/debug/
ARM: debug: provide 8250 debug uart phys/virt address configuration options
ARM: debug: provide 8250 debug uart register shift configuration option
ARM: debug: provide 8250 debug uart flow control configuration option
...
Merge commit 06c54055be did a bad conflict resolution accidentally
leaving out a closing brace. Add it back.
This breaks a handful of defconfigs on ARM, so it'd be good to see it
applied pretty quickly.
Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull IDE changes from David Miller:
"Mostly cleanups, and changes part of tree-wide adjustments, this code
is in deep freeze so that's pretty much what we expect these days"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide:
ide: sgiioc4: Staticize ioc4_ide_attach_one()
ide: palm_bk3710: add missing __iomem annotation
ide: use dev_get_platdata()
ide-disk_proc: use macro to replace magic number
ide: replace strict_strtol() with kstrtol()
Pull sparc changes from David Miller:
"Several bug fixes (from Kirill Tkhai, Geery Uytterhoeven, and Alexey
Dobriyan) and some support for Fujitsu sparc64x chips (from Allen
Pais)"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc64: Export flush_ptrace_access() (needed by lustre)
sparc: fix PCI device proc file mmap(2)
sparc64: Remove RWSEM export leftovers
sparc64: Fix off by one in trampoline TLB mapping installation loop.
sparc64: Fix ITLB handler of null page
esp_scsi: Fix tag state corruption when autosensing.
sparc64: Fix not SRA'ed %o5 in 32-bit traced syscall
sparc64: cleanup: Rename ret_from_syscall to ret_from_fork
sparc32: Fix exit flag passed from traced sys_sigreturn
sparc64: Fix wrong syscall return value passed to trace_sys_exit()
support sparc64x chip type in cpumap.c
cpu hw caps support for sparc64x
Pull networking changes from David Miller:
"Noteworthy changes this time around:
1) Multicast rejoin support for team driver, from Jiri Pirko.
2) Centralize and simplify TCP RTT measurement handling in order to
reduce the impact of bad RTO seeding from SYN/ACKs. Also, when
both timestamps and local RTT measurements are available prefer
the later because there are broken middleware devices which
scramble the timestamp.
From Yuchung Cheng.
3) Add TCP_NOTSENT_LOWAT socket option to limit the amount of kernel
memory consumed to queue up unsend user data. From Eric Dumazet.
4) Add a "physical port ID" abstraction for network devices, from
Jiri Pirko.
5) Add a "suppress" operation to influence fib_rules lookups, from
Stefan Tomanek.
6) Add a networking development FAQ, from Paul Gortmaker.
7) Extend the information provided by tcp_probe and add ipv6 support,
from Daniel Borkmann.
8) Use RCU locking more extensively in openvswitch data paths, from
Pravin B Shelar.
9) Add SCTP support to openvswitch, from Joe Stringer.
10) Add EF10 chip support to SFC driver, from Ben Hutchings.
11) Add new SYNPROXY netfilter target, from Patrick McHardy.
12) Compute a rate approximation for sending in TCP sockets, and use
this to more intelligently coalesce TSO frames. Furthermore, add
a new packet scheduler which takes advantage of this estimate when
available. From Eric Dumazet.
13) Allow AF_PACKET fanouts with random selection, from Daniel
Borkmann.
14) Add ipv6 support to vxlan driver, from Cong Wang"
Resolved conflicts as per discussion.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1218 commits)
openvswitch: Fix alignment of struct sw_flow_key.
netfilter: Fix build errors with xt_socket.c
tcp: Add missing braces to do_tcp_setsockopt
caif: Add missing braces to multiline if in cfctrl_linkup_request
bnx2x: Add missing braces in bnx2x:bnx2x_link_initialize
vxlan: Fix kernel panic on device delete.
net: mvneta: implement ->ndo_do_ioctl() to support PHY ioctls
net: mvneta: properly disable HW PHY polling and ensure adjust_link() works
icplus: Use netif_running to determine device state
ethernet/arc/arc_emac: Fix huge delays in large file copies
tuntap: orphan frags before trying to set tx timestamp
tuntap: purge socket error queue on detach
qlcnic: use standard NAPI weights
ipv6:introduce function to find route for redirect
bnx2x: VF RSS support - VF side
bnx2x: VF RSS support - PF side
vxlan: Notify drivers for listening UDP port changes
net: usbnet: update addr_assign_type if appropriate
driver/net: enic: update enic maintainers and driver
driver/net: enic: Exposing symbols for Cisco's low latency driver
...
Drop a subtree when we find that it has moved or been delated. This can be
done as long as there are no submounts under this location.
If the directory was moved and we come across the same directory in a
future lookup it will be reconnected by d_materialise_unique().
Signed-off-by: Anand Avati <avati@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
On errors unrelated to the filesystem's state (ENOMEM, ENOTCONN) return the
error itself from ->d_revalidate() insted of returning zero (invalid).
Also make a common label for invalidating the dentry. This will be used by
the next patch.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Use d_materialise_unique() instead of d_splice_alias(). This allows dentry
subtrees to be moved to a new place if there moved, even if something is
referencing a dentry in the subtree (open fd, cwd, etc..).
This will also allow us to drop a subtree if it is found to be replaced by
something else. In this case the disconnected subtree can later be
reconnected to its new location.
d_materialise_unique() ensures that a directory entry only ever has one
alias. We keep fc->inst_mutex around the calls for d_materialise_unique()
on directories to prevent a race with mkdir "stealing" the inode.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Do have_submounts(), shrink_dcache_parent() and d_drop() atomically.
check_submounts_and_drop() can deal with negative dentries and
non-directories as well.
Non-directories can also be mounted on. And just like directories we don't
want these to disappear with invalidation.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Do have_submounts(), shrink_dcache_parent() and d_drop() atomically.
check_submounts_and_drop() can deal with negative dentries and
non-directories as well.
Non-directories can also be mounted on. And just like directories we don't
want these to disappear with invalidation.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
CC: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Do have_submounts(), shrink_dcache_parent() and d_drop() atomically.
check_submounts_and_drop() can deal with negative dentries and
non-directories as well.
Non-directories can also be mounted on. And just like directories we don't
want these to disappear with invalidation.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
CC: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Do have_submounts(), shrink_dcache_parent() and d_drop() atomically.
check_submounts_and_drop() can deal with negative dentries as well.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
CC: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
We check submounts before doing d_drop() on a non-empty directory dentry in
NFS (have_submounts()), but we do not exclude a racing mount. Nor do we
prevent mounts to be added to the disconnected subtree using relative paths
after the d_drop().
This patch fixes these issues by checking for unlinked (unhashed, non-root)
ancestors before proceeding with the mount. This is done with rename
seqlock taken for write and with ->d_lock grabbed on each ancestor in turn,
including our dentry itself. This ensures that the only one of
check_submounts_and_drop() or has_unlinked_ancestor() can succeed.
Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
We check submounts before doing d_drop() on a non-empty directory dentry in
NFS (have_submounts()), but we do not exclude a racing mount.
Process A: have_submounts() -> returns false
Process B: mount() -> success
Process A: d_drop()
This patch prepares the ground for the fix by doing the following
operations all under the same rename lock:
have_submounts()
shrink_dcache_parent()
d_drop()
This is actually an optimization since have_submounts() and
shrink_dcache_parent() both traverse the same dentry tree separately.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
CC: David Howells <dhowells@redhat.com>
CC: Steven Whitehouse <swhiteho@redhat.com>
CC: Trond Myklebust <Trond.Myklebust@netapp.com>
CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This one replaces three instances open coded tree walking (have_submounts,
select_parent, d_genocide) with a common helper.
In addition to slightly reducing the kernel size, this simplifies the
callers and makes them less bug prone.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
It shouldn't matter when we decrement the refcount during the walk as long
as we do it exactly once.
Restructure d_genocide() to do the killing on entering the dentry instead
of when leaving it. This helps creating a common helper for tree walking.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
sw_flow_key alignment was declared as " __aligned(__alignof__(long))".
However, this breaks on the m68k architecture where long is 32 bit in
size but 16 bit aligned by default. This aligns to the size of a long to
ensure that we can always do comparsions in full long-sized chunks. It
also adds an additional build check to catch any reduction in alignment.
CC: Andy Zhou <azhou@nicira.com>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull cputime fix from Ingo Molnar:
"This fixes a longer-standing cputime accounting bug that Stanislaw
Gruszka finally managed to track down"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/cputime: Do not scale when utime == 0
Pull x86 fixes from Ingo Molnar:
"Fix for the annoying paravirt.o build warning under allmodconfig, and
a MAINTAINERS file update"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, doc: Add an entry in MAINTAINERS for arch/x86/kernel/cpu/vmware.c
x86, paravirt: Remove duplicate definition for DEF_NATIVE
ioc4_ide_attach_one() is used only in this file.
Fix the following sparse warnings:
drivers/ide/sgiioc4.c:603:5: warning: symbol 'ioc4_ide_attach_one' was not declared. Should it be static?
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Added missing __iomem annotation in order to fix the following
sparse warnings:
drivers/ide/palm_bk3710.c:194:31: warning: incorrect type in initializer (different address spaces)
drivers/ide/palm_bk3710.c:194:31: expected void [noderef] <asn:2>*base
drivers/ide/palm_bk3710.c:194:31: got void *<noident>
drivers/ide/palm_bk3710.c:212:31: warning: incorrect type in initializer (different address spaces)
drivers/ide/palm_bk3710.c:212:31: expected void [noderef] <asn:2>*base
drivers/ide/palm_bk3710.c:212:31: got void *<noident>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The usage of strict_strtol() is not preferred, because
strict_strtol() is obsolete. Thus, kstrtol() should be
used.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
ERROR: "flush_ptrace_access" [drivers/staging/lustre/lustre/libcfs/libcfs.ko]
undefined!
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 786d7e1612 "Fix rmmod/read/write races in /proc entries"
must have broken mmapping of PCI device proc files on Sparc.
Notice how it adds wrapper around ->mmap but doesn't do it around ->get_unmapped_area.
Add wrapper around ->get_unmapped_area.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The functions
__down_read
__down_read_trylock
__down_write
__down_write_trylock
__up_read
__up_write
__downgrade_write
are implemented inline, so remove corresponding EXPORT_SYMBOLs
(They lead to compile errors on RT kernel).
Signed-off-by: Kirill Tkhai <tkhai@yandex.ru>
CC: David Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Conflicts:
drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
net/bridge/br_multicast.c
net/ipv6/sit.c
The conflicts were minor:
1) sit.c changes overlap with change to ip_tunnel_xmit() signature.
2) br_multicast.c had an overlap between computing max_delay using
msecs_to_jiffies and turning MLDV2_MRC() into an inline function
with a name using lowercase instead of uppercase letters.
3) stmmac had two overlapping changes, one which conditionally allocated
and hooked up a dma_cfg based upon the presence of the pbl OF property,
and another one handling store-and-forward DMA made. The latter of
which should not go into the new of_find_property() basic block.
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull media updates from Mauro Carvalho Chehab:
"This series contains:
- Exynos s5p-mfc driver got support for VP8 encoder
- Some SoC drivers gained support for asynchronous registration
(needed for DT)
- The RC subsystem gained support for RC activity LED;
- New drivers added: a video decoder(adv7842), a video encoder
(adv7511), a new GSPCA driver (stk1135) and support for Renesas
R-Car (vsp1)
- the first SDR kernel driver: mirics msi3101. Due to some troubles
with the driver, and because the API is still under discussion, it
will be merged at staging for 3.12. Need to rework on it
- usual new boards additions, fixes, cleanups and driver
improvements"
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (242 commits)
[media] cx88: Fix regression: CX88_AUDIO_WM8775 can't be 0
[media] exynos4-is: Fix entity unregistration on error path
[media] exynos-gsc: Register v4l2 device
[media] exynos4-is: Fix fimc-lite bayer formats
[media] em28xx: fix assignment of the eeprom data
[media] hdpvr: fix iteration over uninitialized lists in hdpvr_probe()
[media] usbtv: Throw corrupted frames away
[media] usbtv: Fix deinterlacing
[media] v4l2: added missing mutex.h include to v4l2-ctrls.h
[media] DocBook: upgrade media_api DocBook version to 4.2
[media] ml86v7667: fix compile warning: 'ret' set but not used
[media] s5p-g2d: Fix registration failure
[media] media: coda: Fix DT driver data pointer for i.MX27
[media] s5p-mfc: Fix input/output format reporting
[media] v4l: vsp1: Fix mutex double lock at streamon time
[media] v4l: vsp1: Add support for RT clock
[media] v4l: vsp1: Initialize media device bus_info field
[media] davinci: vpif_capture: fix error return code in vpif_probe()
[media] davinci: vpif_display: fix error return code in vpif_probe()
[media] MAINTAINERS: add entries for adv7511 and adv7842
...
As reported by Randy Dunlap:
====================
when CONFIG_IPV6=m
and CONFIG_NETFILTER_XT_MATCH_SOCKET=y:
net/built-in.o: In function `socket_mt6_v1_v2':
xt_socket.c:(.text+0x51b55): undefined reference to `udp6_lib_lookup'
net/built-in.o: In function `socket_mt_init':
xt_socket.c:(.init.text+0x1ef8): undefined reference to `nf_defrag_ipv6_enable'
====================
Like several other modules under net/netfilter/ we have to
have a dependency "IPV6 disabled or set compatibly with this
module" clause.
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Dave Jones <davej@fedoraproject.org>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The indentation here implies this was meant to be a multi-line if.
Introduced several years back in commit c85c2951d4
("caif: Handle dev_queue_xmit errors.")
Signed-off-by: Dave Jones <davej@fedoraproject.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
