Move the call to vmtruncate to get rid of accessive blocks to the callers
in prepearation of the new truncate calling sequence. This was only done
for DIO_LOCKING filesystems, so the __blockdev_direct_IO_newtrunc variant
was not needed anyway. Get rid of blockdev_direct_IO_no_locking and
its _newtrunc variant while at it as just opencoding the two additional
paramters is shorted than the name suffix.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
a) count file openers correctly; i_count use was completely wrong
b) use new mutex for exclusion between final close/open/truncate,
to protect tailpacking logics. i_mutex use was wrong and resulted
in deadlocks.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Currently the driver will try to protect all frames,
which leads to a lot of odd things like sending an
RTS with a zeroed RA before multicast frames, which
is clearly bogus.
In order to fix all of this, we need to take a step
back and see what we need to achieve:
* we need RTS/CTS protection if requested by
the AP for the BSS, mac80211 tells us this
* in that case, CTS-to-self should only be
enabled when mac80211 tells us
* additionally, as a hardware workaround, on
some devices we have to protect aggregated
frames with RTS
To achieve the first two items, set up the RXON
accordingly and set the protection required flag
in the transmit command when mac80211 requests
protection for the frame.
To achieve the last item, set the rate-control
RTS-requested flag for all stations that we have
aggregation sessions with, and set the protection
required flag when sending aggregated frames (on
those devices where this is required).
Since otherwise bugs can occur, do not allow the
user to override the RTS-for-aggregation setting
from sysfs any more.
Finally, also clean up the way all these flags get
set in the driver and move everything into the
device-specific functions.
Cc: stable@kernel.org [2.6.35]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Accesses to "wdev->current_bss" must be
locked with the wdev lock, which action
frame transmission is missing.
Cc: stable@kernel.org [2.6.33+]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
CC [M] drivers/net/wireless/libertas/cfg.o
/home/greearb/git/wireless-testing/drivers/net/wireless/libertas/cfg.c: In function ‘lbs_scan_worker’:
/home/greearb/git/wireless-testing/drivers/net/wireless/libertas/cfg.c:722: error: ‘TASK_NORMAL’ undeclared (first use in this function)
/home/greearb/git/wireless-testing/drivers/net/wireless/libertas/cfg.c:722: error: (Each undeclared identifier is reported only once
/home/greearb/git/wireless-testing/drivers/net/wireless/libertas/cfg.c:722: error: for each function it appears in.)
/home/greearb/git/wireless-testing/drivers/net/wireless/libertas/cfg.c: In function ‘lbs_cfg_connect’:
/home/greearb/git/wireless-testing/drivers/net/wireless/libertas/cfg.c:1267: error: ‘TASK_INTERRUPTIBLE’ undeclared (first use in this function)
/home/greearb/git/wireless-testing/drivers/net/wireless/libertas/cfg.c:1267: error: implicit declaration of function ‘signal_pending’
/home/greearb/git/wireless-testing/drivers/net/wireless/libertas/cfg.c:1267: error: implicit declaration of function ‘schedule_timeout’
Reported-by: Ben Greear <greearb@candelatech.com>
Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
proc_bus_zorro_read() didn't take into account the current file position,
hence it always read from the start of the ConfigDev.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Remove BKL use from proc_bus_zorro_lseek(), like was done for
proc_bus_pci_lseek() a long time ago.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Copy RTC response bytes correctly on powerbooks and duos. Thanks to Diego
Cousinet who debugged this and provided me with the fix. Tested on
PowerBook 190 and Duo 280c.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Reported-by: Diego Cousinet <diego@pvco.net>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
arch/m68k/sun3/leds.c:10: ERROR: code indent should use tabs where possible
arch/m68k/sun3/leds.c:11: ERROR: space required after that ',' (ctx:VxV)
Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
I have encountered the same problem that Eric Sandeen described in
this post
http://lkml.org/lkml/fancy/2010/4/23/467
while experimenting with stackable filesystems.
The reason seems to be that ecryptfs calls lookup_one_len() to get the
lower dentry, which in turn calls the lower parent dirs d_revalidate()
with a NULL nameidata object.
If ecryptfs is the underlaying filesystem, the NULL pointer dereference
occurs, since ecryptfs is not prepared to handle a NULL nameidata.
I know that this cant happen any more, since it is no longer allowed to
mount ecryptfs upon itself.
But maybe this patch it useful nevertheless, since the problem would still
apply for an underlaying filesystem that implements d_revalidate() and is
not prepared to handle a NULL nameidata (I dont know if there actually
is such a fs).
With this patch (against 2.6.35-rc5) ecryptfs uses the vfs_lookup_path()
function instead of lookup_one_len() which ensures that the nameidata
passed to the lower filesystems d_revalidate().
Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
The comments in the code indicate that file_info should be released if the
function fails. This releasing is done at the label out_free, not out.
The semantic match that finds this problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@r exists@
local idexpression x;
statement S;
expression E;
identifier f,f1,l;
position p1,p2;
expression *ptr != NULL;
@@
x@p1 = kmem_cache_zalloc(...);
...
if (x == NULL) S
<... when != x
when != if (...) { <+...x...+> }
(
x->f1 = E
|
(x->f1 == NULL || ...)
|
f(...,x->f1,...)
)
...>
(
return <+...x...+>;
|
return@p2 ...;
)
@script:python@
p1 << r.p1;
p2 << r.p2;
@@
print "* file: %s kmem_cache_zalloc %s" % (p1[0].file,p1[0].line)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: stable@kernel.org
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
drivers/power/olpc_battery.c:387: error: unknown field 'owner' specified in initializer
drivers/power/olpc_battery.c:387: warning: excess elements in struct initializer
drivers/power/olpc_battery.c:387: warning: (near initialization for 'olpc_bat_eeprom.attr')
The .owner field has been dropped from the attr struct.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This feature provides a user interface to specify the timeout for
missing interrupts for standard I/O operations.
Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The DASD reserve and release ioctls use the preallocated memory pool
of the respective device to build their CCW requests. However, when
the device is busy, the pool may already be empty and the ioctl fails.
Usually this can be recovered by calling the ioctl again, but in
a situation in which we need to issue an unconditional reserve to
make a device operational again, this would be not recoverable.
To avoid a failure due to lack of memory, DASD device driver will
preallocate enough memory for a single reserve/release request, which
can be used if normal allocation fails.
Signed-off-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Use default MC sched domain initializer, since performance meassurements
finally showed that this is indeed better.
Besides the fact that the powersavings flags functions didn't make too
much sense, but were unused anyway.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Change default load address of the initrd in case of IPL from reader.
The new load address is directly behind the kernel image.
This way we can see immediatly if there are any problems with the code
which tries to rescue the initrd in case the bootmem bitmap would
overlap with the initrd.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The sender kernel parameter contains a z/VM user ID where
alphabetic characters must be specified in uppercase.
Allow users to specify lowercase characters and convert the
sender string to uppercase at module initialization.
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Add missing __init and __exit annoations for module init and exit
functions. This will save us huge amounts of memory... sort of.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Use all available paths for the SENSE ID and STLCK commands. This
prevents deadlocks in conjunction with reserved devices.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Change the ccwrequest infrastructure to use more than one channel
path per start I/O. A flag "singlepath" is added to struct
ccw_request - if set, the old behavior is used. This flag is set
for all exploiters of the ccwrequest infrastructure - so there
is no functional change through this patch.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
If no driver is attached to a device or the driver provides no
set_online/set_offline function, setting this device online/offline
via its sysfs online attribute will silently fail but return success.
This patch changes the behavior to return -EINVAL in those cases.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Log the response from the unit check handler which triggers further
cio internal i/o processing.
Signed-off-by: Michael Ernst <mernst@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
A Linux interface for the CHSC command
store-I/O-operation-status-and-initiate-logging (SIOSL).
Model-dependent logging within the channel subsystem can be invoked
via a helper function or a writable subchannel device attribute.
Signed-off-by: Michael Ernst <mernst@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This reverts commit 5f7aebd845.
Apparently, that PCI ID data was incorrectly taken from the subsystem
information. The actual ID matches another already known ID.
Signed-off-by: John W. Linville <linville@tuxdriver.com>
In ecryptfs_lookup_and_interpose_lower() the lower mount is not decremented
if allocation of a dentry info struct failed. As a result the lower filesystem
cant be unmounted any more (since it is considered busy). This patch corrects
the reference counting.
Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Cc: stable@kernel.org
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Lower filesystems that only implemented unlocked_ioctl weren't being
passed ioctl calls because eCryptfs only checked for
lower_file->f_op->ioctl and returned -ENOTTY if it was NULL.
eCryptfs shouldn't implement ioctl(), since it doesn't require the BKL.
This patch introduces ecryptfs_unlocked_ioctl() and
ecryptfs_compat_ioctl(), which passes the calls on to the lower file
system.
https://bugs.launchpad.net/ecryptfs/+bug/469664
Reported-by: James Dupin <james.dupin@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Fix warning seen with "make -j24 CONFIG_DEBUG_SECTION_MISMATCH=y V=1":
fs/ecryptfs/messaging.c: In function 'ecryptfs_process_response':
fs/ecryptfs/messaging.c:276: warning: 'daemon' may be used uninitialized in this function
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Add ioctl to CRIS serial driver to get RS485 data from user-space.
Signed-off-by: Claudio Scordino <claudio@evidence.eu.com>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
The Conexant CX20584 with 141f:5068 seems compatible with other
cxt5066 code. Just add the missing id.
Tested-by: Cristopher Camacho Leandro <ccamacho@linuxmail.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Commit 991ea75c (drm: use workqueue instead of slow-work), which made
drm to use wq instead of slow-work, didn't account for the return
value difference between delayed_slow_work_enqueue() and
queue_delayed_work(). The former returns 0 on success and -errno on
failures while the latter never fails and only uses the return value
to indicate whether the work was already pending or not.
This misconversion triggered spurious error messages. Remove the now
unnecessary return value check and error message.
Markus: caught another incorrect conversion in drm_kms_helper_poll_enable()
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Tested-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Cc: David Airlie <airlied@linux.ie>
Cc: dri-devel@lists.freedesktop.org
This fixes a warning ("comparison of distinct pointer types lacks a
cast") introduced by the commit
040f6b4f14 ("tx493xide: use ->pio_mode
value to determine pair device speed").
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use memdup_user when user data is immediately copied into the
allocated region.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
expression from,to,size,flag;
position p;
identifier l1,l2;
@@
- to = \(kmalloc@p\|kzalloc@p\)(size,flag);
+ to = memdup_user(from,size);
if (
- to==NULL
+ IS_ERR(to)
|| ...) {
<+... when != goto l1;
- -ENOMEM
+ PTR_ERR(to)
...+>
}
- if (copy_from_user(to, from, size) != 0) {
- <+... when != goto l2;
- -EFAULT
- ...+>
- }
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Without this fix, init of the via82cxxx driver causes a oops with a
stack resembling the one below, and the boot blocks between init of
USB devices and launch of init (was easy to bisect by booting with
init=/bin/sh).
Pid: 279, comm: work_for_cpu Not tainted 2.6.34.1-00003-ga42ea77 #2
Call Trace:
[<ffffffff81045691>] ? warn_slowpath_common+0x76/0x8c
[<ffffffff810456f9>] ? warn_slowpath_fmt+0x40/0x45
[<ffffffff812eb5a1>] ? printk+0x40/0x47
[<ffffffff8108e1fd>] ? enable_irq+0x3e/0x64
[<ffffffffa0003900>] ? ide_probe_port+0x55c/0x589 [ide_core]
[<ffffffffa0003f22>] ? ide_host_register+0x273/0x628 [ide_core]
[<ffffffffa00083e3>] ? ide_pci_init_two+0x4da/0x5c5 [ide_core]
[<ffffffff8106117e>] ? up+0xe/0x36
[<ffffffff81045d7e>] ? release_console_sem+0x17e/0x1ae
[<ffffffff812d945b>] ? klist_iter_exit+0x14/0x1e
[<ffffffff8120ed23>] ? bus_find_device+0x75/0x83
[<ffffffffa0022832>] ? via_init_one+0x269/0x28a [via82cxxx]
[<ffffffffa00223a2>] ? init_chipset_via82cxxx+0x0/0x1ea [via82cxxx]
[<ffffffff81059f25>] ? do_work_for_cpu+0x0/0x1b
[<ffffffff81190c65>] ? local_pci_probe+0x12/0x16
[<ffffffff81059f30>] ? do_work_for_cpu+0xb/0x1b
[<ffffffff8105d0dd>] ? kthread+0x75/0x7d
[<ffffffff810097e4>] ? kernel_thread_helper+0x4/0x10
[<ffffffff8105d068>] ? kthread+0x0/0x7d
[<ffffffff810097e0>] ? kernel_thread_helper+0x0/0x10
---[ end trace 89c8cb70379b5bda ]---
The typo was introduced in a354ae8747,
and affects 2.6.33-rc4 and later.
Signed-off-by: Yann Dirson <ydirson@altern.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
ide_cd_error_cmd() can complete an erroneous request with leftover
buffers. Signal this with its return value so that the request is not
accessed after its completion in the irq handler and we oops.
Cc: <stable@kernel.org> # 32.x 33.x 34.x
Signed-off-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 6ee0578b (workqueue: mark init_workqueues as early_initcall)
made workqueue SMP initialization depend on workqueue_cpu_callback(),
which however was registered as hotcpu_notifier() and didn't get
called if CONFIG_HOTPLUG_CPU is not set. This made gcwqs on non-boot
CPUs not create their initial workers leading to boot failures. Fix
it by making it a cpu_notifier.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-and-bisected-by: walt <w41ter@gmail.com>
Tested-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Change variant of the FIMC driver for compatibility with older
SoC version (EVT0) used on Aquila board.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Add support for FIMC on Samsung SMDKC100 board.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Add support for FIMC on Samsung Aquila board.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
