This patch moves a large number of memory release paths inside of the
configfs callback target_core_hba_item_ops->release() called from
within fs/configfs/item.c: config_item_cleanup() context. This patch
resolves the SLUB 'Poison overwritten' warnings.
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This patch removes the legacy procfs based target_core_mib.c code,
and moves the necessary scsi_index_tables functions and defines into
target_core_transport.c and target_core_base.h code to allow existing
fabric independent statistics to function.
This includes the removal of a handful of 'atomic_t mib_ref_count'
counters used in struct se_node_acl, se_session and se_hba to prevent
removal while using seq_list procfs walking logic.
[jejb: fix up compile failures]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Expand security_capable() to include cred, so that it can be usable in a
wider range of call sites.
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: James Morris <jmorris@namei.org>
* 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (21 commits)
USB: cdc-acm: Adding second ACM channel support for Nokia N8
USB, Mass Storage, composite, gadget: Fix build failure and memset of a struct
USB: Fix trout build failure with ci13xxx_msm gadget
USB: EHCI: fix scheduling while atomic during suspend
USB: usb-storage: unusual_devs entry for Coby MP3 player
USB: ftdi_sio: Add VID=0x0647, PID=0x0100 for Acton Research spectrograph
USB: fix race between root-hub resume and wakeup requests
USB: prevent buggy hubs from crashing the USB stack
usb: r8a66597-udc: Fixed bufnum of Bulk
USB: ftdi_sio: add ST Micro Connect Lite uart support
USB: Storage: Add unusual_devs entry for VTech Kidizoom
USB SL811HS HCD: Fix memory leak in sl811h_urb_enqueue()
USB: ti_usb: fix module removal
USB: io_edgeport: fix the reported firmware major and minor
usb: ehci-omap: Show fatal probing time errors to end user
usb: musb: introduce api for dma code to check compatibility with usb request
usb: musb: maintain three states for buffer mappings instead of two
usb: musb: disable double buffering when it's broken
usb: musb: hsdma: change back to use musb_read/writew
usb: musb: core: fix IRQ check
...
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (34 commits)
virtio_net: Add schedule check to napi_enable call
x25: Do not reference freed memory.
pch_can: fix tseg1/tseg2 setting issue
isdn: hysdn: Kill (partially buggy) CVS regision log reporting.
can: softing_cs needs slab.h
pch_gbe: Fix the issue which a driver locks when rx offload is set by ethtool
netfilter: nf_conntrack: set conntrack templates again if we return NF_REPEAT
pch_can: fix module reload issue with MSI
pch_can: fix rmmod issue
pch_can: fix 800k comms issue
net: Fix lockdep regression caused by initializing netdev queues too early.
net/caif: Fix dangling list pointer in freed object on error.
USB CDC NCM errata updates for cdc_ncm host driver
CDC NCM errata updates for cdc.h
ixgbe: update version string
ixgbe: cleanup variable initialization
ixgbe: limit VF access to network traffic
ixgbe: fix for 82599 erratum on Header Splitting
ixgbe: fix variable set but not used warnings by gcc 4.6
e1000: add support for Marvell Alaska M88E1118R PHY
...
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
virtio: console: Update Copyright
virtio: console: Wake up outvq on host notifications
* 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
m32r: Fixup last __do_IRQ leftover
genirq: Add missing status flags to modification mask
The mask which filters out the valid bits which can be set via
irq_modify_status() is missing IRQ_NO_BALANCING, which breaks UV.
Add IRQ_PER_CPU as well to avoid another one line patch for 39.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (68 commits)
net: can: janz-ican3: world-writable sysfs termination file
net: can: at91_can: world-writable sysfs files
MAINTAINERS: update email ids of the be2net driver maintainers.
bridge: Don't put partly initialized fdb into hash
r8169: prevent RxFIFO induced loops in the irq handler.
r8169: RxFIFO overflow oddities with 8168 chipsets.
r8169: use RxFIFO overflow workaround for 8168c chipset.
include/net/genetlink.h: Allow genlmsg_cancel to accept a NULL argument
net: Provide compat support for SIOCGETMIFCNT_IN6 and SIOCGETSGCNT_IN6.
net: Support compat SIOCGETVIFCNT ioctl in ipv4.
net: Fix bug in compat SIOCGETSGCNT handling.
niu: Fix races between up/down and get_stats.
tcp_ecn is an integer not a boolean
atl1c: Add missing PCI device ID
s390: Fix possibly wrong size in strncmp (smsgiucv)
s390: Fix wrong size in memcmp (netiucv)
qeth: allow OSA CHPARM change in suspend state
qeth: allow HiperSockets framesize change in suspend
qeth: add more strict MTU checking
qeth: show new mac-address if its setting fails
...
This patch fixes the below compilation errors.
CC drivers/usb/gadget/ci13xxx_msm.o
CC net/mac80211/led.o
drivers/usb/gadget/ci13xxx_msm.c: In function 'ci13xxx_msm_notify_event':
drivers/usb/gadget/ci13xxx_msm.c:42: error: 'USB_AHBBURST' undeclared (first use in this function)
drivers/usb/gadget/ci13xxx_msm.c:42: error: (Each undeclared identifier is reported only once
drivers/usb/gadget/ci13xxx_msm.c:42: error: for each function it appears in.)
drivers/usb/gadget/ci13xxx_msm.c:43: error: 'USB_AHBMODE' undeclared (first use in this function)
make[4]: *** [drivers/usb/gadget/ci13xxx_msm.o] Error 1
make[3]: *** [drivers/usb/gadget] Error 2
MSM USB driver is not supported on boards like trout (MSM7201) which
has an external PHY.
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (27 commits)
gpu/stub: fix acpi_video build error, fix stub kconfig dependencies
drm/radeon/kms: dynamically allocate power state space
drm/radeon/kms: fix s/r issues with bios scratch regs
agp: ensure GART has an address before enabling it
Revert "agp: AMD AGP is used on UP1100 & UP1500 alpha boxen"
amd-k7-agp: remove non-x86 code
drm/radeon/kms/evergreen: always set certain VGT regs at CP init
drm/radeon/kms: add updated ib_execute function for evergreen
drm/radeon: remove 0x4243 pci id
drm/radeon/kms: Enable new pll calculation for avivo+ asics
drm/radeon/kms: add new pll algo for avivo asics
drm/radeon/kms: add pll debugging output
drm/radeon/kms: switch back to min->max pll post divider iteration
drm/radeon/kms: rv6xx+ thermal sensor fixes
drm/nv50: fix display on 0x50
drm/nouveau: correctly pair hwmon_init and hwmon_fini
drm/i915: Only bind to function 0 of the PCI device
drm/i915: Suppress spurious vblank interrupts
drm: Avoid leak of adjusted mode along quick set_mode paths
drm: Simplify and defend later checks when disabling a crtc
...
nlmsg_cancel can accept NULL as its second argument, so for similarity,
this patch extends genlmsg_cancel to be able to accept a NULL second
argument as well.
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
[SCSI] libsas: fix runaway error handler problem
[SCSI] fix incorrect value of SCSI_MAX_SG_CHAIN_SEGMENTS due to include file ordering
[SCSI] arcmsr: Fix the issue of system hangup after commands timeout on ARC-1200
[SCSI] mpt2sas: fix Integrated Raid unsynced on shutdown problem
[SCSI] mpt2sas: Kernel Panic during Large Topology discovery
[SCSI] mpt2sas: Fix the race between broadcast asyn event and scsi command completion
[SCSI] mpt2sas: Correct resizing calculation for max_queue_depth
[SCSI] mpt2sas: fix internal device reset for older firmware prior to MPI Rev K
[SCSI] mpt2sas: Fix device removal handshake for zoned devices
Currently the syscall_meta structures for the syscall tracepoints are
placed in the __syscall_metadata section, and at link time, the linker
makes one large array of all these syscall metadata structures. On boot
up, this array is read (much like the initcall sections) and the syscall
data is processed.
The problem is that there is no guarantee that gcc will place complex
structures nicely together in an array format. Two structures in the
same file may be placed awkwardly, because gcc has no clue that they
are suppose to be in an array.
A hack was used previous to force the alignment to 4, to pack the
structures together. But this caused alignment issues with other
architectures (sparc).
Instead of packing the structures into an array, the structures' addresses
are now put into the __syscall_metadata section. As pointers are always the
natural alignment, gcc should always pack them tightly together
(otherwise initcall, extable, etc would also fail).
By having the pointers to the structures in the section, we can still
iterate the trace_events without causing unnecessary alignment problems
with other architectures, or depending on the current behaviour of
gcc that will likely change in the future just to tick us kernel developers
off a little more.
The __syscall_metadata section is also moved into the .init.data section
as it is now only needed at boot up.
Suggested-by: David Miller <davem@davemloft.net>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Make the tracepoints more robust, making them solid enough to handle compiler
changes by not relying on anything based on compiler-specific behavior with
respect to structure alignment. Implement an approach proposed by David Miller:
use an array of const pointers to refer to the individual structures, and export
this pointer array through the linker script rather than the structures per se.
It will consume 32 extra bytes per tracepoint (24 for structure padding and 8
for the pointers), but are less likely to break due to compiler changes.
History:
commit 7e066fb8 tracepoints: add DECLARE_TRACE() and DEFINE_TRACE()
added the aligned(32) type and variable attribute to the tracepoint structures
to deal with gcc happily aligning statically defined structures on 32-byte
multiples.
One attempt was to use a 8-byte alignment for tracepoint structures by applying
both the variable and type attribute to tracepoint structures definitions and
declarations. It worked fine with gcc 4.5.1, but broke with gcc 4.4.4 and 4.4.5.
The reason is that the "aligned" attribute only specify the _minimum_ alignment
for a structure, leaving both the compiler and the linker free to align on
larger multiples. Because tracepoint.c expects the structures to be placed as an
array within each section, up-alignment cause NULL-pointer exceptions due to the
extra unexpected padding.
(this patch applies on top of -tip)
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Acked-by: David S. Miller <davem@davemloft.net>
LKML-Reference: <20110126222622.GA10794@Krystal>
CC: Frederic Weisbecker <fweisbec@gmail.com>
CC: Ingo Molnar <mingo@elte.hu>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Peter Zijlstra <peterz@infradead.org>
CC: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Currently the trace_event structures are placed in the _ftrace_events
section, and at link time, the linker makes one large array of all
the trace_event structures. On boot up, this array is read (much like
the initcall sections) and the events are processed.
The problem is that there is no guarantee that gcc will place complex
structures nicely together in an array format. Two structures in the
same file may be placed awkwardly, because gcc has no clue that they
are suppose to be in an array.
A hack was used previous to force the alignment to 4, to pack the
structures together. But this caused alignment issues with other
architectures (sparc).
Instead of packing the structures into an array, the structures' addresses
are now put into the _ftrace_event section. As pointers are always the
natural alignment, gcc should always pack them tightly together
(otherwise initcall, extable, etc would also fail).
By having the pointers to the structures in the section, we can still
iterate the trace_events without causing unnecessary alignment problems
with other architectures, or depending on the current behaviour of
gcc that will likely change in the future just to tick us kernel developers
off a little more.
The _ftrace_event section is also moved into the .init.data section
as it is now only needed at boot up.
Suggested-by: David Miller <davem@davemloft.net>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
FMODE_EXEC is a constant type of fmode_t but was used with normal integer
constants. This results in following warnings from sparse. Fix it using
new macro __FMODE_EXEC.
fs/exec.c:116:58: warning: restricted fmode_t degrades to integer
fs/exec.c:689:58: warning: restricted fmode_t degrades to integer
fs/fcntl.c:777:9: warning: restricted fmode_t degrades to integer
Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
AND-ing FMODE_* constant with normal integer results in following
sparse warnings. Fix it.
fs/open.c:662:21: warning: restricted fmode_t degrades to integer
fs/anon_inodes.c:123:34: warning: restricted fmode_t degrades to integer
Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
If reclaim after a failed charging was unsuccessful, the limits are
checked again, just in case they settled by means of other tasks.
This is all fine as long as every charge is of size PAGE_SIZE, because in
that case, being below the limit means having at least PAGE_SIZE bytes
available.
But with transparent huge pages, we may end up in an endless loop where
charging and reclaim fail, but we keep going because the limits are not
yet exceeded, although not allowing for a huge page.
Fix this up by explicitely checking for enough room, not just whether we
are within limits.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
