Alex Deucher [Wed, 23 Jun 2010 01:58:26 +0000 (21:58 -0400)]
drm/radeon/kms: avoid oops on mac r4xx cards
They don't have an atombios so don't attempt to use it for
eng/mem clocks.
Reported by spoonb on #radeon
fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=28671
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Wed, 23 Jun 2010 01:35:41 +0000 (11:35 +1000)]
fb: fix colliding defines for fb flags.
When I added the flags I must have been using a 25 line terminal and missed the following flags.
The collided with flag has one user in staging despite being in-tree for 5 years.
I'm happy to push this via my drm tree unless someone really wants to do it.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Cc: stable@kernel.org
Jerome Glisse [Thu, 3 Jun 2010 17:34:48 +0000 (19:34 +0200)]
drm/radeon/kms: Force HDP_NONSURF to maximum size
HDP non surface should cover the whole VRAM but we were misscomputing
the size and we endup in some case not covering the VRAM at all (if
VRAM size were > 1G). Covering more than the VRAM size shouldn't be
an issue.
Fix : https://bugs.freedesktop.org/show_bug.cgi?id=28016
[airlied: add evergreen fix]
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alex Deucher [Tue, 8 Jun 2010 23:44:36 +0000 (19:44 -0400)]
drm/radeon/kms: disable frac fb dividers for rs6xx
Should fix fdo bug 28331:
https://bugs.freedesktop.org/show_bug.cgi?id=28331
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Mon, 21 Jun 2010 03:31:38 +0000 (13:31 +1000)]
drm/radeon/kms: don't read attempt to read bios from VRAM on unposted GPU.
Since the VGA switcheroo, we'd attempt to read the BIOS from VRAM on startup
but on some unposted cards this can cause hangs/crashes.
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=28592
(further problem pointed out by agd5f on IGP systems)
Reported-by: Reilithion on #radeon
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alex Deucher [Wed, 16 Jun 2010 16:24:07 +0000 (12:24 -0400)]
drm/radeon/kms: fix typo in evergreen_gpu_init
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Matt Turner [Sat, 19 Jun 2010 18:13:45 +0000 (14:13 -0400)]
drm/radeon/kms: return ret in cursor_set failure path
We were returning 0 in both the success and failure paths. Noticed while
investigating FDO bug 26403.
Signed-off-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Jerome Glisse [Wed, 16 Jun 2010 08:45:22 +0000 (10:45 +0200)]
drm/ttm: non pooled page allocation should have GFP_USER set
Non pooled page allocation should have GFP_USER set so allocation
can wait and reclaim page from other process (ie non atomic).
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Roland Scheidegger [Sat, 12 Jun 2010 17:31:11 +0000 (13:31 -0400)]
drm/radeon/r100/r200: fix calculation of compressed cube maps
This needs similar handling to other compressed textures.
Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=26428
Signed-off-by: sroland@vmware.com
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Roland Scheidegger [Sat, 12 Jun 2010 17:31:10 +0000 (13:31 -0400)]
drm/radeon/r200: handle more hw tex coord types
Code did not handle projected 2d and depth coordinates, meaning potentially
set 3d or cube special handling might stick.
(Not sure what depth coord actually does, but I guess handling it
like a normal coordinate is the right thing to do.)
Might be related to https://bugs.freedesktop.org/show_bug.cgi?id=26428
Signed-off-by: sroland@vmware.com
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Roland Scheidegger [Sat, 12 Jun 2010 16:12:37 +0000 (12:12 -0400)]
drm/radeon/kms: CS checker texture fixes for r1xx/r2xx/r3xx
fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=28459
agd5f: apply to r1xx/r2xx as well.
Signed-off-by: Roland Scheidegger <sroland@vmware.com>
Cc: stable@kernel.org
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Fri, 11 Jun 2010 05:09:05 +0000 (01:09 -0400)]
drm/radeon: add fake RN50 table for powerpc
This works well enough on a js21, but it would be nice if IBM could supply
more tables for the later Power6/7 machines.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Adam Jackson [Thu, 10 Jun 2010 17:33:26 +0000 (13:33 -0400)]
drm/fb: Fix video= mode computation
Reduced blanking is valid only when doing CVT modes. Also, generate GTF
modes unless CVT was requested; CVT devices are required to support GTF,
but the reverse is not true.
[airlied: fix typo]
Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alex Deucher [Thu, 10 Jun 2010 21:06:01 +0000 (17:06 -0400)]
drm/radeon/kms: fix DP after DPMS cycle
The transmitter needs to be enabled before the link is trained.
Reported-By: Lars Doelle <lars.doelle@on-line.de>
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Cedric Godin [Fri, 11 Jun 2010 18:40:56 +0000 (14:40 -0400)]
drm/radeon/kms: fix dpms state on resume
When suspending, we turn the display hw off, at resume the screen will stay black.
This patch turn it on. Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=16180
Signed-off-by: Cedric Godin <cedric.godin@skynet.be>
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alex Deucher [Sat, 12 Jun 2010 15:50:13 +0000 (11:50 -0400)]
drm/radeon/kms: fix bandwidth calculation when sideport is present
Fixes fdo bug 27529:
https://bugs.freedesktop.org/show_bug.cgi?id=27529
Reported-by: steckdenis@yahoo.fr
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Linus Torvalds [Wed, 30 Jun 2010 22:45:59 +0000 (15:45 -0700)]
Merge git://git./linux/kernel/git/gregkh/staging-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6:
Staging: rtl8192u_usb: Add LG device ID 043e:7a01
Staging: rtl8192s_usb: Remove duplicate device ID
Staging: rt2870: add device id for Zyxel NWD-270N
Staging: comedi: fix read past end of array in cb_pcidda_attach()
Staging: rtl8192su: add device ids
Staging: rtl8192su: remove device ids
Staging: rtl8187se: Fix compile warnings in 2.6.35-rc2
Staging: wlags49_h2: Fix build error when CONFIG_SYSFS is not set
Staging: wlags49_h2: add missing <linux/string.h> for strlen
Staging: hv: fix hv_utils module to properly autoload
staging: hv: Fix race condition on vmbus channel initialization
Staging: comedi: drivers: adl_pci9111: Fix AI commands in TRIG_FOLLOW case
Staging: mrst-touchscreen: fix dereferencing free memory
Staging: batman-adv: fix function prototype
Staging: batman-adv: return -EFAULT on copy_to_user errors
staging: usbip: usbip_common: kill rx thread on tx thread creation error.
Linus Torvalds [Wed, 30 Jun 2010 22:45:28 +0000 (15:45 -0700)]
Merge git://git./linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (22 commits)
USB: gadget: f_mass_storage: stale common->fsg value bug fix
USB: gadget: f_mass_storage: fixed fs descriptors not being updated
USB: musb: Enable the maximum supported burst mode for DMA
USB: musb: fix Blackfin ulpi stubs
USB: MUSB: make non-OMAP platforms build with CONFIG_PM=y
USB: musb_core: make disconnect and suspend interrupts work again
USB: obey the sysfs power/wakeup setting
USB: gadget eth: Fix calculate CRC32 in EEM
USB: qcserial: fix a memory leak in qcprobe error path
USB: gadget/printer, fix sleep inside atomic
USB: isp1362-hcd, fix double lock
USB: serial: ftdi: correct merge conflict with CONTEC id
USB: fix oops in usb_sg_init()
USB: s3c2410: deactivate endpoints before gadget unbinding
USB: ehci-mxc: bail out on transceiver problems
USB: otg/ulpi: bail out on read errors
usb: musb: Fix a bug by making suspend interrupt available in device mode
USB: r8a66597: Fix failure in change of status
USB: xHCI: Fix bug in link TRB activation change.
USB: gadget: g_fs: possible invalid pointer reference bug fixed
...
Linus Torvalds [Wed, 30 Jun 2010 22:45:06 +0000 (15:45 -0700)]
Merge git://git./linux/kernel/git/gregkh/tty-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6:
serial: cpm_uart: implement the cpm_uart_early_write() function for console poll
Linus Torvalds [Wed, 30 Jun 2010 22:44:21 +0000 (15:44 -0700)]
Merge branch 'omap-fixes-for-linus' of git://git./linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6:
OMAP: hwmod: Fix the missing braces
OMAP4: clock: Fix multi-omap boot with reset un-used clocks
OMAP3: PM: fix IO daisy chain enable to use PM_WKEN reg
omap: GPIO: fix auto-disable of debounce clock
omap: DMTIMER: Ack pending interrupt always when stopping a timer
omap: Stalker board: switch over to gpio_set_debounce
omap: fix build failure due to missing include dma-mapping.h
omap iommu: Fix Memory leak
Jes Sorensen [Wed, 30 Jun 2010 13:37:38 +0000 (15:37 +0200)]
Add mdr as maintainer of qla1280 driver.
As discussed with Mike Reed, add him as the maintainer of the qla1280
driver as I no longer have any hardware and he is actively looking
after it.
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Michal Hocko [Wed, 30 Jun 2010 07:51:19 +0000 (09:51 +0200)]
futex: futex_find_get_task remove credentails check
futex_find_get_task is currently used (through lookup_pi_state) from two
contexts, futex_requeue and futex_lock_pi_atomic. None of the paths
looks it needs the credentials check, though. Different (e)uids
shouldn't matter at all because the only thing that is important for
shared futex is the accessibility of the shared memory.
The credentail check results in glibc assert failure or process hang (if
glibc is compiled without assert support) for shared robust pthread
mutex with priority inheritance if a process tries to lock already held
lock owned by a process with a different euid:
pthread_mutex_lock.c:312: __pthread_mutex_lock_full: Assertion `(-(e)) != 3 || !robust' failed.
The problem is that futex_lock_pi_atomic which is called when we try to
lock already held lock checks the current holder (tid is stored in the
futex value) to get the PI state. It uses lookup_pi_state which in turn
gets task struct from futex_find_get_task. ESRCH is returned either
when the task is not found or if credentials check fails.
futex_lock_pi_atomic simply returns if it gets ESRCH. glibc code,
however, doesn't expect that robust lock returns with ESRCH because it
should get either success or owner died.
Signed-off-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Darren Hart <dvhltc@us.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Nick Piggin <npiggin@suse.de>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Flavio Leitner [Tue, 29 Jun 2010 08:24:39 +0000 (08:24 +0000)]
bonding: check if clients MAC addr has changed
When two systems using bonding devices in adaptive load
balancing (ALB) communicates with each other, an endless
ping-pong of ARP replies starts between these two systems.
What happens? In the ALB mode, bonding driver keeps track
of each client connected in a hash table, so it can do the
receive load balancing (RLB). This hash table is updated
when an ARP reply is received, then it scans for the client
entry, updates its MAC address and flag it to be announced
later. Therefore, two seconds later, the alb monitor runs
and send for each updated client entry two ARP replies
updating this specific client. The same process happens on
the receiving system, causing the endless ping-pong of arp
replies.
See more information including the relevant functions below:
System 1 System 2
bond0 bond0
ping <system2>
ARP request --------->
<--------- ARP reply
+->rlb_arp_recv <---------------------+ <--- loop begins
| rlb_update_entry_from_arp |
| client_info->ntt = 1; |
| bond_info->rx_ntt = 1; |
| |
| <communication succeed> |
| |
| bond_alb_monitor |
| rlb_update_rx_clients |
| rlb_update_client |
| arp_create(ARPOP_REPLY) |
| send ARP reply --------------> V
| send ARP reply -------------->
| rlb_arp_recv
| rlb_update_entry_from_arp
| client_info->ntt = 1;
| bond_info->rx_ntt = 1;
| < snipped, same as in system 1>
+------- <-------------- send ARP reply
<-------------- send ARP reply
Besides the unneeded networking traffic, this loop breaks
a cluster because a backup system can't take over the IP
address. There is always one system sending an ARP reply
poisoning the network.
This patch fixes the problem adding a check for the MAC
address before updating it. Thus, if the MAC address didn't
change, there is no need to update neither to announce it later.
Signed-off-by: Flavio Leitner <fleitner@redhat.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David Howells [Wed, 30 Jun 2010 20:10:09 +0000 (13:10 -0700)]
Bluetooth: Fix abuse of the preincrement operator
Fix abuse of the preincrement operator as detected when building with gcc
4.6.0:
CC [M] drivers/bluetooth/hci_bcsp.o
drivers/bluetooth/hci_bcsp.c: In function 'bcsp_prepare_pkt':
drivers/bluetooth/hci_bcsp.c:247:20: warning: operation on 'bcsp->msgq_txseq' may be undefined
Reported-by: Justin P. Mattock <justinmattock@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Gustavo F. Padovan <padovan@profusion.mobi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Saeed Bishara [Sun, 27 Jun 2010 00:26:43 +0000 (00:26 +0000)]
mv643xx_eth: use sw csum for big packets
Some controllers (KW, Dove) limits the TX IP/layer4 checksum offloading to a max size.
Signed-off-by: Saeed Bishara <saeed@marvell.com>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 30 Jun 2010 19:04:58 +0000 (12:04 -0700)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless-2.6
Tony Luck [Wed, 30 Jun 2010 17:46:16 +0000 (10:46 -0700)]
[IA64] Fix spinaphore down_spin()
Typo in down_spin() meant it only read the low 32 bits of the
"serve" value, instead of the full 64 bits. This results in the
system hanging when the values in ticket/serve get larger than
32-bits. A big enough system running the right test can hit this
in a just a few hours.
Broken since
883a3acf5b0d4782ac35981227a0d094e8b44850
[IA64] Re-implement spinaphores using ticket lock concepts
Reported via IRC by Bjorn Helgaas
Signed-off-by: Tony Luck <tony.luck@intel.com>
Andreas Steffen [Wed, 30 Jun 2010 17:41:15 +0000 (10:41 -0700)]
xfrm: fix XFRMA_MARK extraction in xfrm_mark_get
Determine the size of the xfrm_mark struct, not of its pointer.
Signed-off-by: Andreas Steffen <andreas.steffen@strongswan.org>
Acked-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings [Fri, 25 Jun 2010 00:35:49 +0000 (01:35 +0100)]
Staging: rtl8192u_usb: Add LG device ID 043e:7a01
Add another device ID as listed in the vendor driver version
0003.0825.2009.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Ben Hutchings [Fri, 25 Jun 2010 00:35:01 +0000 (01:35 +0100)]
Staging: rtl8192s_usb: Remove duplicate device ID
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Ozan Çağlayan [Mon, 21 Jun 2010 11:00:56 +0000 (14:00 +0300)]
Staging: rt2870: add device id for Zyxel NWD-270N
Add device id for Zyxel NWD-270N USB dongle.
Signed-off-by: Ozan Çağlayan <ozan@pardus.org.tr>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Dan Carpenter [Mon, 21 Jun 2010 06:49:25 +0000 (08:49 +0200)]
Staging: comedi: fix read past end of array in cb_pcidda_attach()
There are only 6 elements in the cb_pcidda_boards[] array so the
original code read past the end. After this change nothing uses N_BOARDS
so I removed the definition.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Florian Schilhabel [Tue, 8 Jun 2010 01:47:13 +0000 (03:47 +0200)]
Staging: rtl8192su: add device ids
This patch adds some device ids.
The list of supported devices was extracted from realteks driver package.
(0x050d, 0x815F) and (0x0df6, 0x004b) are not in the official list of
supported devices and may not work correctly.
In case of problems with these, they should probably be removed from the list.
Signed-off-by: Florian Schilhabel <florian.c.schilhabel@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Florian Schilhabel [Tue, 8 Jun 2010 01:46:26 +0000 (03:46 +0200)]
Staging: rtl8192su: remove device ids
This patch removes some device-ids.
The list of unsupported devices was extracted from realteks driver package.
removed IDs are:
(0x0bda, 0x8192)
(0x0bda, 0x8709)
(0x07aa, 0x0043)
(0x050d, 0x805E)
(0x0df6, 0x0031)
(0x1740, 0x9201)
(0x2001, 0x3301)
(0x5a57, 0x0290)
These devices are _not_ rtl819su based.
Signed-off-by: Florian Schilhabel <florian.c.schilhabel@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Larry Finger [Mon, 7 Jun 2010 17:00:44 +0000 (12:00 -0500)]
Staging: rtl8187se: Fix compile warnings in 2.6.35-rc2
In commit
bbfb5652, the spacing in the definitions of eqMacAddr and cpMacAddr
in drivers/staging/rtl8187se/r8180_core.c were changed to conform to kernel
standards. These definitions were duplicates of lines found in
drivers/staging/rtl8187se/ieee80211/dot11d.h. Once the change was made, the
following warnings were emitted:
CC [M] drivers/staging/rtl8187se/r8180_core.o
drivers/staging/rtl8187se/r8180_core.c:69:0: warning: "eqMacAddr" redefined
drivers/staging/rtl8187se/ieee80211/dot11d.h:39:0: note: this is the location of the previous definition
drivers/staging/rtl8187se/r8180_core.c:70:0: warning: "cpMacAddr" redefined
drivers/staging/rtl8187se/ieee80211/dot11d.h:40:0: note: this is the location of the previous definition
The fix is to keep only the difinition in the header file.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Javier Martinez Canillas [Thu, 17 Jun 2010 05:17:44 +0000 (01:17 -0400)]
Staging: wlags49_h2: Fix build error when CONFIG_SYSFS is not set
I got a wlags49_h2 driver build error in linux-next when CONFIG_SYSFS is not set.
CC [M] drivers/staging/wlags49_h2/wl_cs.o
In file included from drivers/staging/wlags49_h2/wl_cs.c:104:
drivers/staging/wlags49_h2/wl_sysfs.h: In function ‘register_wlags_sysfs’:
drivers/staging/wlags49_h2/wl_sysfs.h:5: error: parameter name omitted
drivers/staging/wlags49_h2/wl_sysfs.h: In function ‘unregister_wlags_sysfs’:
drivers/staging/wlags49_h2/wl_sysfs.h:6: error: parameter name omitted
make[1]: *** [drivers/staging/wlags49_h2/wl_cs.o] Error 1
make: *** [_module_drivers/staging/wlags49_h2] Error 2
This is due a wrong function definition (it does not include parameters names).
Signed-off-by: Javier Martinez Canillas <martinez.javier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jeff Mahoney [Wed, 9 Jun 2010 20:01:10 +0000 (16:01 -0400)]
Staging: wlags49_h2: add missing <linux/string.h> for strlen
On ia64, the build fails with incompatible implicit definition of strlen.
This patch adds the <linux/string.h> include to get the real prototype.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Haiyang Zhang [Wed, 19 May 2010 15:56:28 +0000 (15:56 +0000)]
Staging: hv: fix hv_utils module to properly autoload
Added autoloading based on pci id and dmi strings.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Haiyang Zhang [Fri, 28 May 2010 23:22:44 +0000 (23:22 +0000)]
staging: hv: Fix race condition on vmbus channel initialization
There is a possible race condition when hv_utils starts to load immediately
after hv_vmbus is loading - null pointer error could happen.
This patch added wait/completion to ensure all channels are ready before
vmbus loading completes. So another module won't have any uninitialized channel.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Ian Abbott [Fri, 18 Jun 2010 11:11:28 +0000 (12:11 +0100)]
Staging: comedi: drivers: adl_pci9111: Fix AI commands in TRIG_FOLLOW case
I received a report that AI streaming acquisitions do not work properly
for the adl_pci9111 driver when convert_src is TRIG_TIMER and
scan_begin_src is TRIG_FOLLOW (and scan_begin_arg is therefore 0). This
seems to be down to the incorrect setting of dev_private->scan_delay in
pci9111_ai_do_cmd(). Under the previously stated conditions,
dev_private->scan_delay ends up set to (unsigned int)-1, but it ought to
be set to 0. The function sets it to 0 initially, and it only makes
sense to change it if both convert_src and scan_begin_src are set to
TRIG_TIMER.
Note: 'scan_delay' is the number of unwanted scans to discard after each
valid scan. The hardware does not support 'scan' timing as such, just a
regularly paced conversion timer (with automatic channel switching
between conversions). The driver simulates a scan period that is some
(>1) multiple of the conversion period times the scan length
(chanlist_len samples) by reading chanlist_len samples and discarding
the next scan_delay times chanlist_len samples.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Dan Carpenter [Sat, 5 Jun 2010 17:16:42 +0000 (19:16 +0200)]
Staging: mrst-touchscreen: fix dereferencing free memory
I moved the kfree() down a couple lines after the dereference.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Javier Martinez Canillas [Sun, 6 Jun 2010 19:03:05 +0000 (21:03 +0200)]
Staging: batman-adv: fix function prototype
In today linux-next I got a compile warning in staging/batman-adv.
This is due a struct bin_attribute read function prototype change and the driver was not updated.
This patch solves the issue
Signed-off-by: Javier Martinez Canillas <martinez.javier@gmail.com>
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Dan Carpenter [Sun, 6 Jun 2010 19:03:04 +0000 (21:03 +0200)]
Staging: batman-adv: return -EFAULT on copy_to_user errors
copy_to_user() returns the number of bites remaining but we want to
return a negative error code here.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Himanshu Chauhan [Fri, 4 Jun 2010 17:46:27 +0000 (23:16 +0530)]
staging: usbip: usbip_common: kill rx thread on tx thread creation error.
Signed-off-by: Himanshu Chauhan <hschauhan@nulltrace.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Michal Nazarewicz [Fri, 25 Jun 2010 14:29:28 +0000 (16:29 +0200)]
USB: gadget: f_mass_storage: stale common->fsg value bug fix
On fsg_unbind the common->fsg pointer was not NULLed if the
unbound fsg_dev instance was the current one. As an effect,
the incorrect pointer was preserved in all further operations
which caused do_set_interface to reference an invalid region.
This commit fixes this by raising an exception in fsg_bind
which will change the common->fsg pointer. This also requires
an wait queue so that the thread in fsg_bind can wait till the
worker thread handles the exception.
This commit removes also a config and new_config fields of
fsg_common as they are no longer needed since fsg can be
used to determine whether function is active or not.
Moreover, this commit removes possible race condition where
the fsg field was modified in both the worker thread and
form various other contexts. This is fixed by replacing
prev_fsg with new_fsg. At this point, fsg is assigned only
in worker thread.
Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Michal Nazarewicz [Fri, 25 Jun 2010 14:29:26 +0000 (16:29 +0200)]
USB: gadget: f_mass_storage: fixed fs descriptors not being updated
The full speed descriptors were copied to the usb_function structure
in the fsg_bind_config function before call to the usb_ep_autoconfig.
The usb_ep_autoconfig was called in fsg_bind using the original
descriptors. In effect copied descriptors were not updated.
This patch changes the copy full speed descriptors after the call to
usb_op_autoconfig is performed. This way, copied full speed
descriptors have updated values.
Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Reported-by: Dries Van Puymbroeck <Dries.VanPuymbroeck@dekimo.com>
Tested-by: Dries Van Puymbroeck <Dries.VanPuymbroeck@dekimo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Hema HK [Thu, 24 Jun 2010 17:37:09 +0000 (23:07 +0530)]
USB: musb: Enable the maximum supported burst mode for DMA
Setting MUSB Burst Mode 3 automatically enables support for
lower burst modes (BURST4, BURST8, BURST16 or bursts of unspecified
length). There is no need to set these burst modes based on the
packet size. Also enable the burst mode for both mode1 and mode0.
This is a fix for buggy hardware - having the lower burst modes
enabled can potentially cause lockups of the DMA engine used in
OMAP2/3/4 chips.
Signed-off-by: Hema HK <hemahk@ti.com>
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Acked-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mike Frysinger [Thu, 24 Jun 2010 17:37:08 +0000 (23:07 +0530)]
USB: musb: fix Blackfin ulpi stubs
The new ulpi code defines fallback stubs for the Blackfin arch, but does
so incorrectly leading to a build failure:
drivers/usb/musb/musb_core.c:227: error: 'musb_ulpi_read' undeclared here (not in a function)
drivers/usb/musb/musb_core.c:228: error: 'musb_ulpi_write' undeclared here (not in a function)
Tweak the fallback stubs so that they do work as intended.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Acked-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sergei Shtylyov [Thu, 24 Jun 2010 17:37:07 +0000 (23:07 +0530)]
USB: MUSB: make non-OMAP platforms build with CONFIG_PM=y
Attempt to build MUSB driver with CONFIG_PM=y (e.g. in the OTG mode) on DaVinci
results in these link errors:
drivers/built-in.o: In function `musb_restore_context':
led-triggers.c:(.text+0x714d8): undefined reference to
`musb_platform_restore_context'
drivers/built-in.o: In function `musb_save_context':
led-triggers.c:(.text+0x71788): undefined reference to
`musb_platform_save_context'
This turned out to be caused by commit
9957dd97ec5e98dd334f87ade1d9a0b24d1f86eb
(usb: musb: Fix compile error for omaps for musb_hdrc). Revert it, taking into
account the rename of CONFIG_ARCH_OMAP34XX into CONFIG_ARCH_OMAP3 (which that
commit fixed in a completely inappropriate way) and the recent addition of
OMAP4 support.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Acked-by: Felipe Balbi <felipe.balbi@nokia.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sergei Shtylyov [Thu, 24 Jun 2010 17:37:06 +0000 (23:07 +0530)]
USB: musb_core: make disconnect and suspend interrupts work again
Commit
1c25fda4a09e8229800979986ef399401053b46e (usb: musb: handle irqs in the
order dictated by programming guide) forgot to get rid of the old 'STAGE0_MASK'
filter for calling musb_stage0_irq(), so now disconnect and suspend interrupts
are effectively ignored...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Acked-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Tue, 22 Jun 2010 20:14:48 +0000 (16:14 -0400)]
USB: obey the sysfs power/wakeup setting
This patch (as1403) is a partial reversion of an earlier change
(commit
5f677f1d45b2bf08085bbba7394392dfa586fa8e "USB: fix remote
wakeup settings during system sleep"). After hearing from a user, I
realized that remote wakeup should be enabled during system sleep
whenever userspace allows it, and not only if a driver requests it
too.
Indeed, there could be a device with no driver, that does nothing but
generate a wakeup request when the user presses a button. Such a
device should be allowed to do its job.
The problem fixed by the earlier patch -- device generating a wakeup
request for no reason, causing system suspend to abort -- was also
addressed by a later patch ("USB: don't enable remote wakeup by
default", accepted but not yet merged into mainline). The device
won't be able to generate the bogus wakeup requests because it will be
disabled for remote wakeup by default. Hence this reversion will not
re-introduce any old problems.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org> [.34]
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jiri Pinkava [Sun, 20 Jun 2010 18:05:52 +0000 (20:05 +0200)]
USB: gadget eth: Fix calculate CRC32 in EEM
CRC should be calculated for Ethernet frame, not for whole recievede EEM data.
This bug shows rarely, because in many times len == skb->len.
Signed-off-by: Jiri Pinkava <jiri.pinkava@vscht.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Axel Lin [Mon, 21 Jun 2010 00:44:17 +0000 (08:44 +0800)]
USB: qcserial: fix a memory leak in qcprobe error path
This patch adds missing kfree(data) before return -ENODEV.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jiri Slaby [Mon, 21 Jun 2010 15:02:40 +0000 (17:02 +0200)]
USB: gadget/printer, fix sleep inside atomic
Stanse found that sleep is called inside atomic context created by
lock_printer_io spinlock in several functions. It's used in process
context only and some functions sleep inside its critical section. As
this is not allowed for spinlocks, switch it to mutex.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Craig W. Nadler <craig@nadler.us>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jiri Slaby [Mon, 21 Jun 2010 15:02:51 +0000 (17:02 +0200)]
USB: isp1362-hcd, fix double lock
Stanse found that isp1362_sw_reset tries to take a isp1362_hcd->lock,
but it is already held in isp1362_hc_stop. Avoid that by introducing
__isp1362_sw_reset which doesn't take the lock and call it from
isp1362_hc_stop. isp1362_sw_reset is then as simple as lock --
__isp1362_sw_reset -- unlock.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Lothar Wassmann <LW@KARO-electronics.de>
Cc: Michael Hennerich <michael.hennerich@analog.com>
Cc: Bryan Wu <cooloney@kernel.org>
Cc: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Daniel Sangorrin [Fri, 18 Jun 2010 06:30:02 +0000 (15:30 +0900)]
USB: serial: ftdi: correct merge conflict with CONTEC id
This patch corrects a problem with the merge of a previous
patch to add the CONTEC identifier.
I believe the merge problem occurred with the commit:
dee5658b482e9e2ac7d6205dc876fc11d4008138
Originally I submitted a patch and then they asked me to order the IDs
and resubmit, so did I. But unfortunately in the end somehow both
patches were merged.
Signed-off-by: Daniel Sangorrin <daniel.sangorrin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Fri, 18 Jun 2010 14:16:33 +0000 (10:16 -0400)]
USB: fix oops in usb_sg_init()
This patch (as1401) fixes a bug in usb_sg_init() that can cause an
invalid pointer dereference. An inner loop reuses some local variables
in an unsafe manner, so new variables are introduced.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Vladimir Zapolskiy [Fri, 18 Jun 2010 04:25:00 +0000 (08:25 +0400)]
USB: s3c2410: deactivate endpoints before gadget unbinding
Gadget disconnect must be called before unbinding to avoid races.
The change fixes an oops on g_ether module unregistering.
Signed-off-by: Vladimir Zapolskiy <vzapolskiy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Wolfram Sang [Tue, 15 Jun 2010 10:34:23 +0000 (12:34 +0200)]
USB: ehci-mxc: bail out on transceiver problems
The old code registered the hcd even if there were no transceivers
detected, leading to oopses like this if we try to probe a non-existant
ULPI:
[ 2.730000] mxc-ehci mxc-ehci.0: unable to init transceiver
[ 2.740000] timeout polling for ULPI device
[ 2.740000] timeout polling for ULPI device
[ 2.750000] mxc-ehci mxc-ehci.0: unable to enable vbus on transceiver
[ 2.750000] mxc-ehci mxc-ehci.0: Freescale On-Chip EHCI Host Controller
[ 2.760000] mxc-ehci mxc-ehci.0: new USB bus registered, assigned bus number 2
[ 2.770000] Unhandled fault: external abort on non-linefetch (0x808) at 0xc4876184
[ 2.770000] Internal error: : 808 [#1] PREEMPT
[ 2.770000] last sysfs file:
[ 2.770000] Modules linked in:
[ 2.770000] CPU: 0 Not tainted (2.6.33.5 #5)
[ 2.770000] PC is at ehci_hub_control+0x4d4/0x8f8
[ 2.770000] LR is at ehci_mxc_setup+0xbc/0xdc
[ 2.770000] pc : [<
c0196dfc>] lr : [<
c019bc8c>] psr:
00000093
[ 2.770000] sp :
c3815e40 ip :
00000001 fp :
60000013
[ 2.770000] r10:
c4876184 r9 :
00000000 r8 :
c3814000
[ 2.770000] r7 :
c391d2cc r6 :
00000001 r5 :
00000001 r4 :
00000000
[ 2.770000] r3 :
80000000 r2 :
00000007 r1 :
80000000 r0 :
c4876184
[ 2.770000] Flags: nzcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel
[ 2.770000] Control:
0005317f Table:
a0004000 DAC:
00000017
[ 2.770000] Process swapper (pid: 1, stack limit = 0xc3814270)
...
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: stable <stable@kernel.org>
Acked-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Wolfram Sang [Tue, 15 Jun 2010 10:34:22 +0000 (12:34 +0200)]
USB: otg/ulpi: bail out on read errors
otg_read may return errnos, so bail out correctly to prevent bogus
ID-numbers.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Daniel Mack <daniel@caiaq.de>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Maulik Mankad [Tue, 15 Jun 2010 09:10:27 +0000 (14:40 +0530)]
usb: musb: Fix a bug by making suspend interrupt available in device mode
As a part of aligning the ISR code for MUSB with the specs, the
ISR code was re-written.
See Commit
1c25fda4a09e8229800979986ef399401053b46e (usb: musb: handle
irqs in the order dictated by programming guide)
With this the suspend interrupt came accidently under CONFIG_USB_MUSB_HDRC_HCD.
The fix brings suspend interrupt handling outside
CONFIG_USB_MUSB_HDRC_HCD.
Signed-off-by: Maulik Mankad <x0082077@ti.com>
Cc: David Brownell <david-b@pacbell.net>
Acked-by: Felipe Balbi <felipe.balbi@nokia.com>
Cc: stable <stable@kernel.org> [.34]
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Nobuhiro Iwamatsu [Mon, 7 Jun 2010 07:55:56 +0000 (16:55 +0900)]
USB: r8a66597: Fix failure in change of status
In the change by
749da5f82fe33ff68dd4aa1a5e35cd9aa6246dab,
The change in the status when the USB device is connected is wrong.
Therefore, the device is not recognized.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
CC: Paul Mundt" <lethal@linux-sh.org>
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sarah Sharp [Thu, 10 Jun 2010 19:25:28 +0000 (12:25 -0700)]
USB: xHCI: Fix bug in link TRB activation change.
Commit
6c12db90f19727c76990e7f4801c67a148b30111 introduced a bug for
control transfers. The patch was supposed to change when the link TRBs at
the end of each ring segment were given to the hardware. If a transfer
descriptor (TD) ended just before the link TRB, the code wouldn't give
back the link TRB to the hardware; instead it would be given back in
prepare_ring() just before the next TD was enqueued at the top of the
ring.
Unfortunately, the code relied on checking the chain bit of the TRB to
determine whether the TD ended just before the link TRB. It assumed that
the ring enqueuing code would call prepare_ring() before enqueuing the
next TD. However, control transfers are made of multiple TDs, and
prepare_ring() is only called once before enqueuing two or three TDs.
If the first or second TD of the control transfer ended just before the
link TRB, then the code in inc_enq() would not move the enqueue pointer
past the link TRB, and the link TRB would get overwritten. This would
cause the xHCI driver to start writing to memory past the ring segment,
and eventually the system would crash or hang.
The fix is to add a flag to inc_enq() that says whether the caller will
enqueue more TDs before calling prepare_ring(). If the chain bit is
cleared (meaning this is the last TRB in a TD), and the caller will not
enqueue more TDs, then we defer giving back the link TRB.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Michal Nazarewicz [Mon, 14 Jun 2010 08:43:34 +0000 (10:43 +0200)]
USB: gadget: g_fs: possible invalid pointer reference bug fixed
During __gfs_do_config() some invalid pointers may be left
in usb_configuration::interfaces array from previous calls
to the __gfs_do_config() for the same configuration. This
will always happen if an user space function which has
a fewer then the last user space function registers itself.
Composite's set_config() function that a pointer after the
last interface in usb_configuration::interface is NULL
unless the array is full.
This patch makes the __gfs_do_config() make sure that if the
usb_configuration::interface is not full then a pointer
after the last interface is NULL.
Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jon Povey [Mon, 14 Jun 2010 10:42:10 +0000 (19:42 +0900)]
USB: g_serial: fix tty cleanup on unload
Call put_tty_driver() in cleanup function, to fix Oops when trying to open
gadget serial char device after module unload.
Signed-off-by: Jon Povey <jon.povey@racelogic.co.uk>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jon Povey [Mon, 14 Jun 2010 10:41:04 +0000 (19:41 +0900)]
USB: g_serial: don't set low_latency flag
No longer set low_latency flag as it causes this warning backtrace:
WARNING: at kernel/mutex.c:207 __mutex_lock_slowpath+0x6c/0x288()
Fix associated locking and wakeups.
Signed-off-by: Jon Povey <jon.povey@racelogic.co.uk>
Cc: Maulik Mankad <x0082077@ti.com>
Cc: stable <stable@kernel.org>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Dongdong Deng [Thu, 17 Jun 2010 03:13:40 +0000 (11:13 +0800)]
serial: cpm_uart: implement the cpm_uart_early_write() function for console poll
The cpm_uart_early_write() function which was used for console poll
isn't implemented in the cpm uart driver.
Implementing this function both fixes the build when CONFIG_CONSOLE_POLL
is set and allows kgdboc to work via the cpm uart.
Signed-off-by: Dongdong Deng <dongdong.deng@windriver.com>
Reviewed-by: Bruce Ashfield <bruce.ashfield@windriver.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Michal Marek [Wed, 30 Jun 2010 14:41:23 +0000 (16:41 +0200)]
kbuild: Propagate LOCALVERSION= down to scripts/setlocalversion
Variables given on the make commandline are not exported to $(shell
...) commands, so run the setlocalversion script in the make rule
directly.
Signed-off-by: Michal Marek <mmarek@suse.cz>
Frederic Weisbecker [Wed, 30 Jun 2010 13:09:06 +0000 (15:09 +0200)]
x86: Send a SIGTRAP for user icebp traps
Before we had a generic breakpoint layer, x86 used to send a
sigtrap for any debug event that happened in userspace,
except if it was caused by lazy dr7 switches.
Currently we only send such signal for single step or breakpoint
events.
However, there are three other kind of debug exceptions:
- debug register access detected: trigger an exception if the
next instruction touches the debug registers. We don't use
it.
- task switch, but we don't use tss.
- icebp/int01 trap. This instruction (0xf1) is undocumented and
generates an int 1 exception. Unlike single step through TF
flag, it doesn't set the single step origin of the exception
in dr6.
icebp then used to be reported in userspace using trap signals
but this have been incidentally broken with the new breakpoint
code. Reenable this. Since this is the only debug event that
doesn't set anything in dr6, this is all we have to check.
This fixes a regression in Wine where World Of Warcraft got broken
as it uses this for software protection checks purposes. And
probably other apps do.
Reported-and-tested-by: Alexandre Julliard <julliard@winehq.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Prasad <prasad@linux.vnet.ibm.com>
Cc: 2.6.33.x 2.6.34.x <stable@kernel.org>
Peter Zijlstra [Wed, 30 Jun 2010 08:37:11 +0000 (10:37 +0200)]
init: Fix comment
Apparently "pid-1" confuses people...
Requested-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: torvalds@linux-foundation.org
Cc: randy.dunlap@oracle.com
Cc: Ilya Loginov <isloginov@gmail.com>
LKML-Reference: <
1277887031.1868.82.camel@laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Guillaume Gaudonville [Tue, 29 Jun 2010 18:29:00 +0000 (18:29 +0000)]
ixgbe: skip non IPv4 packets in ATR filter
In driver ixgbe, ixgbe_atr may cause crashes for non-ipv4 packets. Just
add a test to check skb->protocol. It may crash on short packets due
to ip_hdr() access.
Signed-off-by: Guillaume Gaudonville <guillaume.gaudonville@6wind.com>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
John Fastabend [Tue, 29 Jun 2010 18:28:36 +0000 (18:28 +0000)]
ixgbe: disable tx engine before disabling tx laser
Disabling the tx laser while receiving DMA requests
can hang the device. After this occurs the device
is in a bad state. The GPIO bit never clears when
PCI master access is disabled and a reboot is required
to get the device in a good state again.
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andy Gospodarek [Tue, 29 Jun 2010 18:28:12 +0000 (18:28 +0000)]
ixgbe: fix panic when shutting down system with WoL enabled
This patch added to 2.6.34:
commit
5f6c01819979afbfec7e0b15fe52371b8eed87e8
Author: Jesse Brandeburg <jesse.brandeburg@intel.com>
Date: Wed Apr 14 16:04:23 2010 -0700
ixgbe: fix bug with vlan strip in promsic mode
among other things added a function called ixgbe_vlan_filter_enable.
This new function wants to access and set some rx_ring parameters, but
adapter->rx_ring has already been freed. This simply moves the free
until after the access and makes __ixgbe_shutdown look more like
ixgbe_remove.
Signed-off-by: Andy Gospodarek <andy@greyhouse.net>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Emil Tantilov <emil.s.tantilov@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Changli Gao [Tue, 29 Jun 2010 11:10:36 +0000 (13:10 +0200)]
splice: check f_mode for seekable file
check f_mode for seekable file
As a seekable file is allowed without a llseek function, so the old way isn't
work any more.
Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
----
fs/splice.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Changli Gao [Tue, 29 Jun 2010 11:09:18 +0000 (13:09 +0200)]
splice: direct_splice_actor() should not use pos in sd
direct_splice_actor() shouldn't use sd->pos, as sd->pos is for file reading,
file->f_pos should be used instead.
Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
----
fs/splice.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Andrew Morton [Tue, 29 Jun 2010 22:05:42 +0000 (15:05 -0700)]
fs/fcntl.c:kill_fasync_rcu() fa_lock must be IRQ-safe
Fix a lockdep-splat-causing regression introduced by commit
989a2979205d
("fasync: RCU and fine grained locking").
kill_fasync() can be called from both process and hard-irq context, so
fa_lock must be taken with IRQs disabled.
Addresses https://bugzilla.kernel.org/show_bug.cgi?id=16230
Reported-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Reported-by: Dominik Brodowski <linux@dominikbrodowski.net>
Tested-by: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Maciej Rutecki <maciej.rutecki@gmail.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: "David S. Miller" <davem@davemloft.net>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Liu Aleaxander [Tue, 29 Jun 2010 22:05:40 +0000 (15:05 -0700)]
um: os-linux/mem.c needs sys/stat.h
The os-linux/mem.c file calls fchmod function, which is declared in sys/stat.h
header file, so include it. Fixes build breakage under FC13.
Signed-off-by: Liu Aleaxander <Aleaxander@gmail.com>
Acked-by: Boaz Harrosh <bharrosh@panasas.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Wan ZongShun [Tue, 29 Jun 2010 22:05:39 +0000 (15:05 -0700)]
drivers/video/nuc900fb.c: fix lcd build error
Fix a nuc900 lcd build error.
Since the 'nuc900_driver_clksrc_div()' API cannot be merged into mainline
successfully, I removed this clock source selection hook in this driver.
This means nuc900 lcd driver has to select default clock source from the
external crystal now.
Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
Cc: Qiang Wang <rurality.wq@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Lubomir Rintel [Tue, 29 Jun 2010 22:05:38 +0000 (15:05 -0700)]
sysvfs: fix NULL deref. when allocating new inode
A call to sysv_write_inode() in sysv_new_inode() to its new interface that
replaced wait flag with writeback structure. This was broken by
a9185b41a4f84971b930c519f0c63bd450c4810d ("pass writeback_control to
->write_inode").
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: <stable@kernel.org> [2.6.34.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Brownell [Tue, 29 Jun 2010 22:05:37 +0000 (15:05 -0700)]
drivers/gpio is platform-neutral
Update Kconfig and Makefile in drivers/gpio to discourage inappropriate
addition of platform-specific code.
[akpm@linux-foundation.org: fix tpyo]
Signed-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Joakim Tjernlund [Tue, 29 Jun 2010 22:05:34 +0000 (15:05 -0700)]
rtc: fix ds1388 time corruption
The ds1307 driver misreads the ds1388 registers when checking for 12 or 24
hour mode. Instead of checking the hour register it reads the minute
register. Therefore the driver thinks minutes >= 40 has the 12HR bit set
and resets the minute register by zeroing the high bits. This results in
minutes are reset to 0-9, jumping back in time 40 or 50 minutes. The time
jump is also written back to the RTC.
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Cc: Wan ZongShun <mcuos.com@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Paul Gortmaker <p_gortmaker@yahoo.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Nicolas Ferre [Tue, 29 Jun 2010 22:05:33 +0000 (15:05 -0700)]
MAINTAINERS: some Atmel drivers change maintainer
I take over the maintenance of SPI, USART, Ethernet and USB gadget
drivers. Those drivers are found in Atmel microcontrollers, both
AT32/AVR32 and AT91/ARM.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Cc: Andrew Victor <avictor.za@gmail.com>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Masami Hiramatsu [Tue, 29 Jun 2010 22:05:32 +0000 (15:05 -0700)]
MAINTAINERS: Masami Hiramatsu has moved
Masami Hiramatsu moved back to Hitachi Japan and changed his email
address.
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Martin Wilck [Tue, 29 Jun 2010 22:05:31 +0000 (15:05 -0700)]
ipmi: set schedule_timeout_wait() value back to one
Fix a regression introduced by
ae74e823cb7d ("ipmi: add parameter to limit
CPU usage in kipmid").
Some systems were seeing CPU usage go up dramatically with the recent
changes to try to reduce timer usage in the IPMI driver. This was traced
down to schedule_timeout_interruptible(1) being changed to
schedule_timeout_interruptbile(0). Revert that part of the change.
Addresses https://bugzilla.kernel.org/show_bug.cgi?id=16147
Reported-by: Thomas Jarosch <thomas.jarosch@intra2net.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Tested-by: Thomas Jarosch <thomas.jarosch@intra2net.com>
Cc: <stable@kernel.org> [2.6.34.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Lee Schermerhorn [Tue, 29 Jun 2010 22:05:30 +0000 (15:05 -0700)]
mempolicy: fix dangling reference to tmpfs superblock mpol
My patch to "Factor out duplicate put/frees in mpol_shared_policy_init()
to a common return path"; and Dan Carpenter's fix thereto both left a
dangling reference to the incoming tmpfs superblock mempolicy structure.
A similar leak was introduced earlier when the nodemask was moved offstack
to the scratch area despite the note in the comment block regarding the
incoming ref.
Move the remaining 'put of the incoming "mpol" to the common exit path to
drop the reference.
Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com>
Acked-by: Dan Carpenter <error27@gmail.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Matthew Garrett [Tue, 29 Jun 2010 22:05:29 +0000 (15:05 -0700)]
ipmi: make sure drivers were registered before unregistering them
The ipmi code will never register a PCI or Open Firmware driver if a
hardcoded device is provided by the user by providing device addresses via
the module parameters. This can cause us to attempt to unregister a
driver that was never registered, resulting in an oops. Keep track of
registration in order to avoid this.
Fixes a post-2.6.34 regression.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Acked-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pavan Naregundi [Tue, 29 Jun 2010 22:05:28 +0000 (15:05 -0700)]
kexec: fix Oops in crash_shrink_memory()
When crashkernel is not enabled, "echo 0 > /sys/kernel/kexec_crash_size"
OOPSes the kernel in crash_shrink_memory. This happens when
crash_shrink_memory tries to release the 'crashk_res' resource which are
not reserved. Also value of "/sys/kernel/kexec_crash_size" shows as 1,
which should be 0.
This patch fixes the OOPS in crash_shrink_memory and shows
"/sys/kernel/kexec_crash_size" as 0 when crash kernel memory is not
reserved.
Signed-off-by: Pavan Naregundi <pavan@linux.vnet.ibm.com>
Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com>
Cc: Simon Horman <horms@verge.net.au>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Kukjin Kim [Tue, 29 Jun 2010 22:05:26 +0000 (15:05 -0700)]
MAINTAINERS: update files and add maintainer for SAMSUNG ARM ARCHITECTURES
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Acked-by: Ben Dooks <ben-linux@fluff.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mikael Pettersson [Tue, 29 Jun 2010 22:05:25 +0000 (15:05 -0700)]
compiler-gcc.h: gcc-4.5 needs noclone and noinline on __naked functions
A __naked function is defined in C but with a body completely implemented
by asm(), including any prologue and epilogue. These asm() bodies expect
standard calling conventions for parameter passing. Older GCCs implement
that correctly, but 4.[56] currently do not, see GCC PR44290. In the
Linux kernel this breaks ARM, causing most arch/arm/mm/copypage-*.c
modules to get miscompiled, resulting in kernel crashes during bootup.
Part of the kernel fix is to augment the __naked function attribute to
also imply noinline and noclone. This patch implements that, and has been
verified to fix boot failures with gcc-4.5 compiled 2.6.34 and 2.6.35-rc1
kernels. The patch is a no-op with older GCCs.
Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Frysinger [Tue, 29 Jun 2010 22:05:21 +0000 (15:05 -0700)]
flat: tweak default stack alignment
The recent commit
1f0ce8b3dd667dca7 ("mm: Move ARCH_SLAB_MINALIGN and
ARCH_KMALLOC_MINALIGN to <linux/slab_def.h>") which moved the
ARCH_SLAB_MINALIGN default into the global header inadvertently broke FLAT
for a bunch of systems. Blackfin systems now fail on any FLAT exec with:
Unable to read code+data+bss, errno 14 When your /init is a FLAT binary,
obviously this can be annoying ;).
This stems from the alignment usage in the FLAT loader. The behavior
before was that FLAT would default to ARCH_SLAB_MINALIGN only if it was
defined, and this was only defined by arches when they wanted a larger
alignment value. Otherwise it'd default to pointer alignment. Arguably,
this is kind of hokey that the FLAT is semi-abusing defines it shouldn't.
So let's merge the two alignment requirements so the floor is never 0.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Cc: David McCullough <davidm@snapgear.com>
Cc: Greg Ungerer <gerg@uclinux.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: David Howells <dhowells@redhat.com>
Cc: David Woodhouse <David.Woodhouse@intel.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andres Salomon [Tue, 29 Jun 2010 22:05:20 +0000 (15:05 -0700)]
lxfb: fix incorrect __init annotation
WARNING: vmlinux.o(.data+0x196e8): Section mismatch in reference from the
variable lxfb_driver to the function .init.text:lxfb_probe() The variable
lxfb_driver references the function __init lxfb_probe()
This changes lxfb_probe and friends to use __devinit, and also adds
__devexit to lxfb_remove.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Cc: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andres Salomon [Tue, 29 Jun 2010 22:05:19 +0000 (15:05 -0700)]
gxfb: fix incorrect __init annotation
WARNING: vmlinux.o(.data+0x195d8): Section mismatch in reference from the
variable gxfb_driver to the function .init.text:gxfb_probe() The variable
gxfb_driver references the function __init gxfb_probe()
This changes gxfb_probe and friends to use __devinit, and also adds
__devexit to gxfb_remove.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Cc: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
KAMEZAWA Hiroyuki [Tue, 29 Jun 2010 22:05:18 +0000 (15:05 -0700)]
memcg: fix wake up in oom wait queue
OOM-waitqueue should be waken up when oom_disable is canceled. This is a
fix for
3c11ecf448eff8f1 ("memcg: oom kill disable and oom status").
How to test:
Create a cgroup A...
1. set memory.limit and memory.memsw.limit to be small value
2. echo 1 > /cgroup/A/memory.oom_control, this disables oom-kill.
3. run a program which must cause OOM.
A program executed in 3 will sleep by oom_waiqueue in memcg. Then, how to
wake it up is problem.
1. echo 0 > /cgroup/A/memory.oom_control (enable OOM-killer)
2. echo big mem > /cgroup/A/memory.memsw.limit_in_bytes(allow more swap)
etc..
Without the patch, a task in slept can not be waken up.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Cc: Balbir Singh <balbir@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Frysinger [Tue, 29 Jun 2010 22:05:17 +0000 (15:05 -0700)]
nommu: add '[stack]' label to /proc/pid/maps output
Add support to the NOMMU /proc/pid/maps file to show which mapping is the stack
of the original thread after execve. This is largely based on the MMU code.
Subsidiary thread stacks are not indicated.
For FDPIC, we now get:
root:/> cat /proc/self/maps
02064000-
02067ccc rw-p
0004d000 00:01 22 /bin/busybox
0206e000-
0206f35c rw-p
00006000 00:01 295 /lib/ld-uClibc.so.0
025f0000-
025f6f0c r-xs
00000000 00:01 295 /lib/ld-uClibc.so.0
02680000-
026ba6b0 r-xs
00000000 00:01 297 /lib/libc.so.0
02700000-
0274d384 r-xs
00000000 00:01 22 /bin/busybox
02816000-
02817000 rw-p
00000000 00:00 0
02848000-
0284c0d8 rw-p
00000000 00:00 0
02860000-
02880000 rw-p
00000000 00:00 0 [stack]
The semi-downside here is that for FLAT, we get:
root:/> cat /proc/155/maps
029f0000-
029f9000 rwxp
00000000 00:00 0 [stack]
The reason being that FLAT combines a whole lot of stuff into one map
(including the stack). But this isn't any worse than the current output
(which is nothing), so screw it.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Greg Ungerer <gerg@snapgear.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Imre Deak [Tue, 29 Jun 2010 22:05:15 +0000 (15:05 -0700)]
genalloc: fix allocation from end of pool
bitmap_find_next_zero_area requires the size of the bitmap, we instead
passed the last suitable position. This made it impossible to allocate
from the end of the pool.
Fixes a regression introduced by
243797f59b748f679ab88d456fcc4f92236d724b
("genalloc: use bitmap_find_next_zero_area").
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Cc: Zygo Blaxell <zygo.blaxell@xandros.com>
Cc: Tejun Heo <tj@kernel.org>
Acked-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Tue, 29 Jun 2010 17:42:52 +0000 (10:42 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
block: Don't count_vm_events for discard bio in submit_bio.
cfq: fix recursive call in cfq_blkiocg_update_completion_stats()
cfq-iosched: Fixed boot warning with BLK_CGROUP=y and CFQ_GROUP_IOSCHED=n
cfq: Don't allow queue merges for queues that have no process references
block: fix DISCARD_BARRIER requests
cciss: set SCSI max cmd len to 16, as default is wrong
cpqarray: fix two more wrong section type
cpqarray: fix wrong __init type on pci probe function
drbd: Fixed a race between disk-attach and unexpected state changes
writeback: fix pin_sb_for_writeback
writeback: add missing requeue_io in writeback_inodes_wb
writeback: simplify and split bdi_start_writeback
writeback: simplify wakeup_flusher_threads
writeback: fix writeback_inodes_wb from writeback_inodes_sb
writeback: enforce s_umount locking in writeback_inodes_sb
writeback: queue work on stack in writeback_inodes_sb
writeback: fix writeback completion notifications
npiggin@suse.de [Thu, 24 Jun 2010 03:02:14 +0000 (13:02 +1000)]
fs: fix superblock iteration race
list_for_each_entry_safe is not suitable to protect against concurrent
modification of the list. 6754af6 introduced a race in sb walking.
list_for_each_entry can use the trick of pinning the current entry in
the list before we drop and retake the lock because it subsequently
follows cur->next. However list_for_each_entry_safe saves n=cur->next
for following before entering the loop body, so when the lock is
dropped, n may be deleted.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: John Stultz <johnstul@us.ibm.com>
Cc: Frank Mayhar <fmayhar@google.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Sage Weil [Tue, 29 Jun 2010 16:28:39 +0000 (09:28 -0700)]
ceph: fix caps usage accounting for import (non-reserved) case
We need to increase the total and used counters when allocating a new cap
in the non-reserved (cap import) case.
Signed-off-by: Sage Weil <sage@newdream.net>
Sage Weil [Thu, 24 Jun 2010 22:12:37 +0000 (15:12 -0700)]
ceph: only release clean, unused caps with mds requests
We can drop caps with an mds request. Ensure we only drop unused AND
clean caps, since the MDS doesn't support cap writeback in that context,
nor do we track it. If caps are dirty, and the MDS needs them back, we
it will revoke and we will flush in the normal fashion.
This fixes a possibly loss of metadata.
Signed-off-by: Sage Weil <sage@newdream.net>
Ben Hutchings [Mon, 28 Jun 2010 08:45:58 +0000 (08:45 +0000)]
ethtool: Fix potential user buffer overflow for ETHTOOL_{G, S}RXFH
struct ethtool_rxnfc was originally defined in 2.6.27 for the
ETHTOOL_{G,S}RXFH command with only the cmd, flow_type and data
fields. It was then extended in 2.6.30 to support various additional
commands. These commands should have been defined to use a new
structure, but it is too late to change that now.
Since user-space may still be using the old structure definition
for the ETHTOOL_{G,S}RXFH commands, and since they do not need the
additional fields, only copy the originally defined fields to and
from user-space.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Cc: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>