Magnus Damm [Tue, 27 Oct 2009 10:47:34 +0000 (10:47 +0000)]
sh: mac address through private data for sh_eth on ms7724se
Convert the ms7724se board code to pass the mac
address to the sh_eth driver using platform data.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Paul Mundt [Tue, 27 Oct 2009 08:10:24 +0000 (17:10 +0900)]
Merge branch 'sh/stable-updates'
Paul Mundt [Tue, 27 Oct 2009 08:08:55 +0000 (17:08 +0900)]
sh: enable PERF_USE_VMALLOC across the board.
The vast majority of SH platforms want this, and the few that don't
aren't going to care one way or the other. Enable it across the board.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Paul Mundt [Tue, 27 Oct 2009 08:07:45 +0000 (17:07 +0900)]
sh: Bump up dma_ops initialization far earlier in the boot process.
Presently this was tacked on to the dma debug init bits from
fs_initcall(), which is far too late for devices setting up their own
per-device coherent areas.
Throw this in the beginning of mem_init(), as per the x86 iommu
allocation.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Paul Mundt [Tue, 27 Oct 2009 02:51:19 +0000 (11:51 +0900)]
sh: Clean up more superfluous symbol exports.
Many of these symbols went away completely, or we just never cared about
them in the first place. Trim the exports down to the essential set.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Paul Mundt [Tue, 27 Oct 2009 02:36:43 +0000 (11:36 +0900)]
sh: intc: Make ack_regs generally available.
Currently this is ifdef'ed under SH-3 and SH-4A, but there are other CPUs
that will need this as well. Given the size of the existing data
structures, this doesn't cause any additional cacheline utilization for
the existing users, so has no direct impact on the data structures.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Paul Mundt [Tue, 27 Oct 2009 01:51:35 +0000 (10:51 +0900)]
sh64: cache flush symbol exports.
These were previously hidden in sh_ksyms_32, despite also being needed
for sh64 now that the cache.c code is shared.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Paul Mundt [Tue, 27 Oct 2009 01:41:58 +0000 (10:41 +0900)]
sh: Fix up dma_is_consistent().
This fixes up the dma_is_consistent() definition for the various
coherence options.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Paul Mundt [Tue, 27 Oct 2009 01:36:55 +0000 (10:36 +0900)]
sh: Kill off superfluous arch/sh/drivers/pci/Kconfig.
Now that this contains a grand total of 1 Kconfig option, it's hardly
worth keeping split out. Roll CONFIG_PCI back in to the top-level
architecture Kconfig, along with the other bus types.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Paul Mundt [Tue, 27 Oct 2009 01:35:02 +0000 (10:35 +0900)]
sh: Revamp PCI DMA coherence Kconfig bits.
Leaving this configurable caused more trouble than it was ever worth, so
just make it explicit. Boards that are verified one way or the other can
fix up their selects accordingly. We presently default to non-coherent
for most platforms.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Matt Fleming [Mon, 26 Oct 2009 22:19:49 +0000 (22:19 +0000)]
sh: Annotate irq functions with "notrace"
Now that SH's irqflags functions are out of line it becomes necessary to
mark them as "notrace" so that we don't try to trace them.
[ Do the same for irq_64.c -- PFM. ]
Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Valentin R Sitsikov [Fri, 16 Oct 2009 10:45:47 +0000 (10:45 +0000)]
sh: fix watchdog timer for sh7780/sh7785
Signed-off-by: Valentin Sitdikov <valentin.sitdikov@siemens.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Paul Mundt [Mon, 26 Oct 2009 22:22:37 +0000 (07:22 +0900)]
sh: Fix hugetlbfs dependencies for SH-3 && MMU configurations.
The hugetlb dependencies presently depend on SUPERH && MMU while the
hugetlb page size definitions depend on CPU_SH4 or CPU_SH5. This
unfortunately allows SH-3 + MMU configurations to enable hugetlbfs
without a corresponding HPAGE_SHIFT definition, resulting in the build
blowing up.
As SH-3 doesn't support variable page sizes, we tighten up the
dependenies a bit to prevent hugetlbfs from being enabled. These days
we also have a shiny new SYS_SUPPORTS_HUGETLBFS, so switch to using
that rather than adding to the list of corner cases in fs/Kconfig.
Reported-by: Kristoffer Ericson <kristoffer.ericson@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Paul Mundt [Mon, 26 Oct 2009 22:17:12 +0000 (07:17 +0900)]
sh: Document uImage.bin target in archhelp.
This was missing from the previous patch.
Reported-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Magnus Damm [Mon, 26 Oct 2009 10:44:37 +0000 (10:44 +0000)]
sh: mac address through private data for sh_eth on ecovec24
Convert the ecovec24 board code to pass the mac
address to the sh_eth driver using platform data.
Also, remove the static clock to allow Runtime PM.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Magnus Damm [Mon, 26 Oct 2009 10:41:58 +0000 (10:41 +0000)]
sh: add hwblk_id to sh_eth on ecovec24
Add HWBLK_ETHER to the sh_eth platform device
to allow Runtime PM of the ethernet hardware.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Paul Mundt [Mon, 26 Oct 2009 10:46:59 +0000 (19:46 +0900)]
Merge branch 'sh/stable-updates'
Magnus Damm [Mon, 26 Oct 2009 10:12:39 +0000 (10:12 +0000)]
sh: add uImage.bin target
Add an uImage.bin target to allow uncompressed uImages.
Useful for boards with busted u-boot decompression like
the rsk7203 on my desk.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Magnus Damm [Mon, 26 Oct 2009 10:08:55 +0000 (10:08 +0000)]
sh: rsk7203 CONFIG_MTD=n fix
Fix the rsk7203 board code to build with CONFIG_MTD=n.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Magnus Damm [Mon, 26 Oct 2009 10:30:48 +0000 (10:30 +0000)]
sh: fix kexec by removing check for old kexec-tools
This unbreaks kexec support. Without this fix all
cases of kexec fails since __pa() does not behave
like PHYSADDR(). The downside is that we also kill
the code blocking users running old kexec-tools.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Paul Mundt [Mon, 26 Oct 2009 01:48:18 +0000 (10:48 +0900)]
Merge branch 'sh/stable-updates'
Conflicts:
arch/sh/kernel/dwarf.c
Paul Mundt [Mon, 26 Oct 2009 01:47:44 +0000 (10:47 +0900)]
Merge branch 'sh/sdhi-mfd'
Conflicts:
arch/sh/boards/mach-ecovec24/setup.c
arch/sh/boards/mach-kfr2r09/setup.c
Kuninori Morimoto [Fri, 2 Oct 2009 07:54:42 +0000 (07:54 +0000)]
sh: mach-ecevec24: Add SDHI support
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Magnus Damm [Fri, 2 Oct 2009 02:23:19 +0000 (02:23 +0000)]
sh: SDHI platform data to the kfr2r09 board
Add SD Card support to the kfr2r09 board using the
sh_mobile_sdhi driver hooked up to SDHI0 and yc304.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Magnus Damm [Fri, 2 Oct 2009 02:23:07 +0000 (02:23 +0000)]
sh: SDHI platform data to the SE7724 board
Add SD Card support to the se7724 board using the
sh_mobile_sdhi driver hooked up to SDHI0 and CN7.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Magnus Damm [Fri, 2 Oct 2009 02:22:56 +0000 (02:22 +0000)]
sh: SDHI platform data to the AP325RXA board
Convert the AP325 board to use sh_mobile_sdhi for the
SD Card connected to CN3 instead of mmc_spi.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Magnus Damm [Fri, 2 Oct 2009 02:22:43 +0000 (02:22 +0000)]
sh: SDHI platform data to the Migo-R board
Convert the Migo-R board to use sh_mobile_sdhi for the
SD Card connected to CN9 instead of mmc_spi.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Magnus Damm [Fri, 2 Oct 2009 02:22:21 +0000 (02:22 +0000)]
mmc: Add SuperH to the tmio-mmc Kconfig
Add SUPERH to the Kconfig dependencies for tmio_mmc.
This change allows us to drive the SDHI hardware blocks
found in SuperH Mobile with tmio_mmc.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Magnus Damm [Fri, 2 Oct 2009 02:22:09 +0000 (02:22 +0000)]
mfd: Add SuperH Mobile SDHI platform driver
This patch adds an MFD driver for the SuperH Mobile SDHI
hardware block. At this point the driver simply wraps the
tmio-mmc driver with some clock code. In the future this
driver is the place to put SDHI specific hotplug code.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Matt Fleming [Sat, 24 Oct 2009 18:56:57 +0000 (18:56 +0000)]
sh: Check for return_to_handler when unwinding the stack
When CONFIG_FUNCTION_GRAPH_TRACER is enabled the function graph tracer
may patch return addresses on the stack with the address of
return_to_handler(). This really confuses the DWARF unwinder because it
will try find the caller of return_to_handler(), not the caller of the
real return address.
So teach the DWARF unwinder how to find the real return address whenever
it encounters return_to_handler().
This patch does not cope very well when multiple return addresses on the
stack have been patched. To make it work properly it would require state
to track how many return_to_handler()'s have been seen so that we'd know
where to look in current->curr_ret_stack[]. So for now, instead of
trying to handle this, just moan if more than one return address on the
stack has been patched.
Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Lubomir Rintel [Thu, 22 Oct 2009 11:58:37 +0000 (11:58 +0000)]
sh: Build fix: define more __movmem* symbols
ERROR: "__movmemSI12" [net/unix/unix.ko] undefined!
ERROR: "__movmemSI52" [net/ipv6/sit.ko] undefined!
ERROR: "__movmemSI24" [net/ipv6/ipv6.ko] undefined!
ERROR: "__movmemSI60" [net/ipv6/ipv6.ko] undefined!
ERROR: "__movmemSI16" [net/ipv6/ipv6.ko] undefined!
ERROR: "__movmemSI20" [net/ipv6/ipv6.ko] undefined!
ERROR: "__movmemSI32" [net/ipv6/ipv6.ko] undefined!
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Paul Mundt [Mon, 26 Oct 2009 00:58:31 +0000 (09:58 +0900)]
sh: __irq_entry annotate do_IRQ().
This adds an __irq_entry annotation for do_IRQ() so that the IRQ
annotation in the function graph tracer works as advertized. We already
have the IRQENTRY section wired up, so this is just a trivial addition
to actually make use of it.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Paul Mundt [Mon, 26 Oct 2009 00:50:51 +0000 (09:50 +0900)]
sh: Add dma-mapping support for dma_alloc/free_coherent() overrides.
This moves the current dma_alloc/free_coherent() calls to a generic
variant and plugs them in for the nommu default. Other variants can
override the defaults in the dma mapping ops directly.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Linus Torvalds [Thu, 22 Oct 2009 22:35:16 +0000 (07:35 +0900)]
Merge git://git./linux/kernel/git/rusty/linux-2.6-for-linus
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
move virtrng_remove to .devexit.text
move virtballoon_remove to .devexit.text
virtio_blk: Revert serial number support
virtio: let header files include virtio_ids.h
virtio_blk: revert QUEUE_FLAG_VIRT addition
Linus Torvalds [Thu, 22 Oct 2009 22:34:23 +0000 (07:34 +0900)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (21 commits)
niu: VLAN_ETH_HLEN should be used to make sure that the whole MAC header was copied to the head buffer in the Vlan packets case
KS8851: Fix ks8851_set_rx_mode() for IFF_MULTICAST
KS8851: Fix MAC address write order
KS8851: Add soft reset at probe time
net: fix section mismatch in fec.c
net: Fix struct inet_timewait_sock bitfield annotation
tcp: Try to catch MSG_PEEK bug
net: Fix IP_MULTICAST_IF
bluetooth: static lock key fix
bluetooth: scheduling while atomic bug fix
tcp: fix TCP_DEFER_ACCEPT retrans calculation
tcp: reduce SYN-ACK retrans for TCP_DEFER_ACCEPT
tcp: accept socket after TCP_DEFER_ACCEPT period
Revert "tcp: fix tcp_defer_accept to consider the timeout"
AF_UNIX: Fix deadlock on connecting to shutdown socket
ethoc: clear only pending irqs
ethoc: inline regs access
vmxnet3: use dev_dbg, fix build for CONFIG_BLOCK=n
virtio_net: use dev_kfree_skb_any() in free_old_xmit_skbs()
be2net: fix support for PCI hot plug
...
Uwe Kleine-König [Thu, 1 Oct 2009 08:28:35 +0000 (10:28 +0200)]
move virtrng_remove to .devexit.text
The function virtrng_remove is used only wrapped by __devexit_p so define
it using __devexit.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Uwe Kleine-König [Thu, 1 Oct 2009 08:28:33 +0000 (10:28 +0200)]
move virtballoon_remove to .devexit.text
The function virtballoon_remove is used only wrapped by __devexit_p so
define it using __devexit.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Rusty Russell [Thu, 22 Oct 2009 22:39:28 +0000 (16:39 -0600)]
virtio_blk: Revert serial number support
This reverts "Add serial number support for virtio_blk, V4a".
Turns out that virtio_pci, lguest and s/390 all have an 8 bit limit
on virtio config space, so noone could ever use this.
This is coming back later in a cleaner form.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: john cooper <john.cooper@redhat.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Christian Borntraeger [Wed, 30 Sep 2009 09:17:21 +0000 (11:17 +0200)]
virtio: let header files include virtio_ids.h
Rusty,
commit
3ca4f5ca73057a617f9444a91022d7127041970a
virtio: add virtio IDs file
moved all device IDs into a single file. While the change itself is
a very good one, it can break userspace applications. For example
if a userspace tool wanted to get the ID of virtio_net it used to
include virtio_net.h. This does no longer work, since virtio_net.h
does not include virtio_ids.h.
This patch moves all "#include <linux/virtio_ids.h>" from the C
files into the header files, making the header files compatible with
the old ones.
In addition, this patch exports virtio_ids.h to userspace.
CC: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Christoph Hellwig [Fri, 4 Sep 2009 20:44:42 +0000 (22:44 +0200)]
virtio_blk: revert QUEUE_FLAG_VIRT addition
It seems like the addition of QUEUE_FLAG_VIRT caueses major performance
regressions for Fedora users:
https://bugzilla.redhat.com/show_bug.cgi?id=509383
https://bugzilla.redhat.com/show_bug.cgi?id=505695
while I can't reproduce those extreme regressions myself I think the flag
is wrong.
Rationale:
QUEUE_FLAG_VIRT expands to QUEUE_FLAG_NONROT which casus the queue
unplugged immediately. This is not a good behaviour for at least
qemu and kvm where we do have significant overhead for every
I/O operations. Even with all the latested speeups (native AIO,
MSI support, zero copy) we can only get native speed for up to 128kb
I/O requests we already are down to 66% of native performance for 4kb
requests even on my laptop running the Intel X25-M SSD for which the
QUEUE_FLAG_NONROT was designed.
If we ever get virtio-blk overhead low enough that this flag makes
sense it should only be set based on a feature flag set by the host.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Joyce Yu [Thu, 22 Oct 2009 00:21:10 +0000 (17:21 -0700)]
niu: VLAN_ETH_HLEN should be used to make sure that the whole MAC header was copied to the head buffer in the Vlan packets case
Signed-off-by: Joyce Yu <joyce.yu@sun.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Wed, 21 Oct 2009 23:28:28 +0000 (08:28 +0900)]
Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notify
* 'for-linus' of git://git.infradead.org/users/eparis/notify:
dnotify: ignore FS_EVENT_ON_CHILD
inotify: fix coalesce duplicate events into a single event in special case
inotify: deprecate the inotify kernel interface
fsnotify: do not set group for a mark before it is on the i_list
Linus Torvalds [Wed, 21 Oct 2009 23:27:12 +0000 (08:27 +0900)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: hp_sdc_rtc - fix test in hp_sdc_rtc_read_rt()
Input: atkbd - consolidate force release quirks for volume keys
Input: logips2pp - model 73 is actually TrackMan FX
Input: i8042 - add Sony Vaio VGN-FZ240E to the nomux list
Input: fix locking issue in /proc/bus/input/ handlers
Input: atkbd - postpone restoring LED/repeat rate at resume
Input: atkbd - restore resetting LED state at startup
Input: i8042 - make pnp_data_busted variable boolean instead of int
Input: synaptics - add another Protege M300 to rate blacklist
Linus Torvalds [Wed, 21 Oct 2009 23:26:15 +0000 (08:26 +0900)]
Merge branch 'kvm-updates/2.6.32' of git://git./virt/kvm/kvm
* 'kvm-updates/2.6.32' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: Prevent kvm_init from corrupting debugfs structures
KVM: MMU: fix pointer cast
KVM: use proper hrtimer function to retrieve expiration time
Linus Torvalds [Wed, 21 Oct 2009 23:25:36 +0000 (08:25 +0900)]
Merge git://git./linux/kernel/git/agk/linux-2.6-dm
* git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm:
dm snapshot: allow chunk size to be less than page size
dm snapshot: use unsigned integer chunk size
dm snapshot: lock snapshot while supplying status
dm exception store: fix failed set_chunk_size error path
dm snapshot: require non zero chunk size by end of ctr
dm: dec_pending needs locking to save error value
dm: add missing del_gendisk to alloc_dev error path
dm log: userspace fix incorrect luid cast in userspace_ctr
dm snapshot: free exception store on init failure
dm snapshot: sort by chunk size to fix race
Rafael J. Wysocki [Tue, 20 Oct 2009 04:45:02 +0000 (06:45 +0200)]
PM: Make warning in suspend_test_finish() less likely to happen
Increase TEST_SUSPEND_SECONDS to 10 so the warning in
suspend_test_finish() doesn't annoy the users of slower systems so much.
Also, make the warning print the suspend-resume cycle time, so that we
know why the warning actually triggered.
Patch prepared during the hacking session at the Kernel Summit in Tokyo.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Uwe Kleine-König [Wed, 21 Oct 2009 07:46:59 +0000 (09:46 +0200)]
mmc: at91_mci: Don't include asm/mach/mmc.h
This fixes a compile bug introduced in
6ef297f (ARM: 5720/1: Move MMCI header to amba include dir)
That commit moved arch/arm/include/asm/mach/mmc.h to
include/linux/amba/mmci.h. Just removing the include was enough.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Bill Gatliff <bgat@billgatliff.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Pierre Ossman <drzeus@drzeus.cx>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Wed, 21 Oct 2009 23:17:15 +0000 (08:17 +0900)]
Merge branch 'sh/for-2.6.32' of git://git./linux/kernel/git/lethal/sh-2.6
* 'sh/for-2.6.32' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
sh: Kill off stray HAVE_FTRACE_SYSCALLS reference.
sh: Remove BKL from landisk gio.
sh: disabled cache handling fix.
sh: Fix up single page flushing to use PAGE_SIZE.
Linus Torvalds [Wed, 21 Oct 2009 23:16:01 +0000 (08:16 +0900)]
Merge git://git./linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: aesni-intel - Fix irq_fpu_usable usage
crypto: padlock-sha - Fix stack alignment
Yinghai Lu [Tue, 20 Oct 2009 05:13:46 +0000 (14:13 +0900)]
nfs: Fix nfs_parse_mount_options() kfree() leak
Fix a (small) memory leak in one of the error paths of the NFS mount
options parsing code.
Regression introduced in 2.6.30 by commit
a67d18f (NFS: load the
rpc/rdma transport module automatically).
Reported-by: Yinghai Lu <yinghai@kernel.org>
Reported-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Earl Chew [Mon, 19 Oct 2009 22:55:41 +0000 (15:55 -0700)]
fs: pipe.c null pointer dereference
This patch fixes a null pointer exception in pipe_rdwr_open() which
generates the stack trace:
> Unable to handle kernel NULL pointer dereference at
0000000000000028 RIP:
> [<
ffffffff802899a5>] pipe_rdwr_open+0x35/0x70
> [<
ffffffff8028125c>] __dentry_open+0x13c/0x230
> [<
ffffffff8028143d>] do_filp_open+0x2d/0x40
> [<
ffffffff802814aa>] do_sys_open+0x5a/0x100
> [<
ffffffff8021faf3>] sysenter_do_call+0x1b/0x67
The failure mode is triggered by an attempt to open an anonymous
pipe via /proc/pid/fd/* as exemplified by this script:
=============================================================
while : ; do
{ echo y ; sleep 1 ; } | { while read ; do echo z$REPLY; done ; } &
PID=$!
OUT=$(ps -efl | grep 'sleep 1' | grep -v grep |
{ read PID REST ; echo $PID; } )
OUT="${OUT%% *}"
DELAY=$((RANDOM * 1000 / 32768))
usleep $((DELAY * 1000 + RANDOM % 1000 ))
echo n > /proc/$OUT/fd/1 # Trigger defect
done
=============================================================
Note that the failure window is quite small and I could only
reliably reproduce the defect by inserting a small delay
in pipe_rdwr_open(). For example:
static int
pipe_rdwr_open(struct inode *inode, struct file *filp)
{
msleep(100);
mutex_lock(&inode->i_mutex);
Although the defect was observed in pipe_rdwr_open(), I think it
makes sense to replicate the change through all the pipe_*_open()
functions.
The core of the change is to verify that inode->i_pipe has not
been released before attempting to manipulate it. If inode->i_pipe
is no longer present, return ENOENT to indicate so.
The comment about potentially using atomic_t for i_pipe->readers
and i_pipe->writers has also been removed because it is no longer
relevant in this context. The inode->i_mutex lock must be used so
that inode->i_pipe can be dealt with correctly.
Signed-off-by: Earl Chew <earl_chew@agilent.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ben Dooks [Mon, 19 Oct 2009 23:49:05 +0000 (23:49 +0000)]
KS8851: Fix ks8851_set_rx_mode() for IFF_MULTICAST
In ks8851_set_rx_mode() the case handling IFF_MULTICAST was also setting
the RXCR1_AE bit by accident. This meant that all unicast frames where
being accepted by the device. Remove RXCR1_AE from this case.
Note, RXCR1_AE was also masking a problem with setting the MAC address
properly, so needs to be applied after fixing the MAC write order.
Fixes a bug reported by Doong, Ping of Micrel. This version of the
patch avoids setting RXCR1_ME for all cases.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Dooks [Mon, 19 Oct 2009 23:49:04 +0000 (23:49 +0000)]
KS8851: Fix MAC address write order
The MAC address register was being written in the wrong order, so add
a new address macro to convert mac-address byte to register address and
a ks8851_wrreg8() function to write each byte without having to worry
about any difficult byte swapping.
Fixes a bug reported by Doong, Ping of Micrel.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Dooks [Mon, 19 Oct 2009 23:49:03 +0000 (23:49 +0000)]
KS8851: Add soft reset at probe time
Issue a full soft reset at probe time.
This was reported by Doong Ping of Micrel, but no explanation of why this
is necessary or what bug it is fixing. Add it as it does not seem to hurt
the current driver and ensures that the device is in a known state when we
start setting it up.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steven King [Wed, 21 Oct 2009 01:51:37 +0000 (18:51 -0700)]
net: fix section mismatch in fec.c
fec_enet_init is called by both fec_probe and fec_resume, so it
shouldn't be marked as __init.
Signed-off-by: Steven King <sfking@fdwdc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andreas Gruenbacher [Wed, 14 Oct 2009 22:13:23 +0000 (00:13 +0200)]
dnotify: ignore FS_EVENT_ON_CHILD
Mask off FS_EVENT_ON_CHILD in dnotify_handle_event(). Otherwise, when there
is more than one watch on a directory and dnotify_should_send_event()
succeeds, events with FS_EVENT_ON_CHILD set will trigger all watches and cause
spurious events.
This case was overlooked in commit
e42e2773.
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
static void create_event(int s, siginfo_t* si, void* p)
{
printf("create\n");
}
static void delete_event(int s, siginfo_t* si, void* p)
{
printf("delete\n");
}
int main (void) {
struct sigaction action;
char *tmpdir, *file;
int fd1, fd2;
sigemptyset (&action.sa_mask);
action.sa_flags = SA_SIGINFO;
action.sa_sigaction = create_event;
sigaction (SIGRTMIN + 0, &action, NULL);
action.sa_sigaction = delete_event;
sigaction (SIGRTMIN + 1, &action, NULL);
# define TMPDIR "/tmp/test.XXXXXX"
tmpdir = malloc(strlen(TMPDIR) + 1);
strcpy(tmpdir, TMPDIR);
mkdtemp(tmpdir);
# define TMPFILE "/file"
file = malloc(strlen(tmpdir) + strlen(TMPFILE) + 1);
sprintf(file, "%s/%s", tmpdir, TMPFILE);
fd1 = open (tmpdir, O_RDONLY);
fcntl(fd1, F_SETSIG, SIGRTMIN);
fcntl(fd1, F_NOTIFY, DN_MULTISHOT | DN_CREATE);
fd2 = open (tmpdir, O_RDONLY);
fcntl(fd2, F_SETSIG, SIGRTMIN + 1);
fcntl(fd2, F_NOTIFY, DN_MULTISHOT | DN_DELETE);
if (fork()) {
/* This triggers a create event */
creat(file, 0600);
/* This triggers a create and delete event (!) */
unlink(file);
} else {
sleep(1);
rmdir(tmpdir);
}
return 0;
}
Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Signed-off-by: Eric Paris <eparis@redhat.com>
Eric Dumazet [Sun, 18 Oct 2009 22:48:51 +0000 (22:48 +0000)]
net: Fix struct inet_timewait_sock bitfield annotation
commit
9e337b0f (net: annotate inet_timewait_sock bitfields)
added 4/8 bytes in struct inet_timewait_sock.
Fix this by declaring tw_ipv6_offset in the 'flags' bitfield
The 14 bits hole is named tw_pad to make it cleary apparent.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Herbert Xu [Mon, 19 Oct 2009 19:41:06 +0000 (19:41 +0000)]
tcp: Try to catch MSG_PEEK bug
This patch tries to print out more information when we hit the
MSG_PEEK bug in tcp_recvmsg. It's been around since at least
2005 and it's about time that we finally fix it.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Huang Ying [Tue, 20 Oct 2009 07:20:47 +0000 (16:20 +0900)]
crypto: aesni-intel - Fix irq_fpu_usable usage
When renaming kernel_fpu_using to irq_fpu_usable, the semantics of the
function is changed too, from mesuring whether kernel is using FPU,
that is, the FPU is NOT available, to measuring whether FPU is usable,
that is, the FPU is available.
But the usage of irq_fpu_usable in aesni-intel_glue.c is not changed
accordingly. This patch fixes this.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Eric Dumazet [Mon, 19 Oct 2009 06:41:58 +0000 (06:41 +0000)]
net: Fix IP_MULTICAST_IF
ipv4/ipv6 setsockopt(IP_MULTICAST_IF) have dubious __dev_get_by_index() calls.
This function should be called only with RTNL or dev_base_lock held, or reader
could see a corrupt hash chain and eventually enter an endless loop.
Fix is to call dev_get_by_index()/dev_put().
If this happens to be performance critical, we could define a new dev_exist_by_index()
function to avoid touching dev refcount.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Paul Mundt [Tue, 20 Oct 2009 03:55:56 +0000 (12:55 +0900)]
sh: Convert to asm-generic/dma-mapping-common.h
This converts the old DMA mapping support to the new generic
dma-mapping-common.h abstraction.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Dave Young [Sun, 18 Oct 2009 20:28:30 +0000 (20:28 +0000)]
bluetooth: static lock key fix
When shutdown ppp connection, lockdep waring about non-static key
will happen, it is caused by the lock is not initialized properly
at that time.
Fix with tuning the lock/skb_queue_head init order
[ 94.339261] INFO: trying to register non-static key.
[ 94.342509] the code is fine but needs lockdep annotation.
[ 94.342509] turning off the locking correctness validator.
[ 94.342509] Pid: 0, comm: swapper Not tainted 2.6.31-mm1 #2
[ 94.342509] Call Trace:
[ 94.342509] [<
c0248fbe>] register_lock_class+0x58/0x241
[ 94.342509] [<
c024b5df>] ? __lock_acquire+0xb57/0xb73
[ 94.342509] [<
c024ab34>] __lock_acquire+0xac/0xb73
[ 94.342509] [<
c024b7fa>] ? lock_release_non_nested+0x17b/0x1de
[ 94.342509] [<
c024b662>] lock_acquire+0x67/0x84
[ 94.342509] [<
c04cd1eb>] ? skb_dequeue+0x15/0x41
[ 94.342509] [<
c054a857>] _spin_lock_irqsave+0x2f/0x3f
[ 94.342509] [<
c04cd1eb>] ? skb_dequeue+0x15/0x41
[ 94.342509] [<
c04cd1eb>] skb_dequeue+0x15/0x41
[ 94.342509] [<
c054a648>] ? _read_unlock+0x1d/0x20
[ 94.342509] [<
c04cd641>] skb_queue_purge+0x14/0x1b
[ 94.342509] [<
fab94fdc>] l2cap_recv_frame+0xea1/0x115a [l2cap]
[ 94.342509] [<
c024b5df>] ? __lock_acquire+0xb57/0xb73
[ 94.342509] [<
c0249c04>] ? mark_lock+0x1e/0x1c7
[ 94.342509] [<
f8364963>] ? hci_rx_task+0xd2/0x1bc [bluetooth]
[ 94.342509] [<
fab95346>] l2cap_recv_acldata+0xb1/0x1c6 [l2cap]
[ 94.342509] [<
f8364997>] hci_rx_task+0x106/0x1bc [bluetooth]
[ 94.342509] [<
fab95295>] ? l2cap_recv_acldata+0x0/0x1c6 [l2cap]
[ 94.342509] [<
c02302c4>] tasklet_action+0x69/0xc1
[ 94.342509] [<
c022fbef>] __do_softirq+0x94/0x11e
[ 94.342509] [<
c022fcaf>] do_softirq+0x36/0x5a
[ 94.342509] [<
c022fe14>] irq_exit+0x35/0x68
[ 94.342509] [<
c0204ced>] do_IRQ+0x72/0x89
[ 94.342509] [<
c02038ee>] common_interrupt+0x2e/0x34
[ 94.342509] [<
c024007b>] ? pm_qos_add_requirement+0x63/0x9d
[ 94.342509] [<
c038e8a5>] ? acpi_idle_enter_bm+0x209/0x238
[ 94.342509] [<
c049d238>] cpuidle_idle_call+0x5c/0x94
[ 94.342509] [<
c02023f8>] cpu_idle+0x4e/0x6f
[ 94.342509] [<
c0534153>] rest_init+0x53/0x55
[ 94.342509] [<
c0781894>] start_kernel+0x2f0/0x2f5
[ 94.342509] [<
c0781091>] i386_start_kernel+0x91/0x96
Reported-by: Oliver Hartkopp <oliver@hartkopp.net>
Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
Tested-by: Oliver Hartkopp <oliver@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dave Young [Sun, 18 Oct 2009 20:24:41 +0000 (20:24 +0000)]
bluetooth: scheduling while atomic bug fix
Due to driver core changes dev_set_drvdata will call kzalloc which should be
in might_sleep context, but hci_conn_add will be called in atomic context
Like dev_set_name move dev_set_drvdata to work queue function.
oops as following:
Oct 2 17:41:59 darkstar kernel: [ 438.001341] BUG: sleeping function called from invalid context at mm/slqb.c:1546
Oct 2 17:41:59 darkstar kernel: [ 438.001345] in_atomic(): 1, irqs_disabled(): 0, pid: 2133, name: sdptool
Oct 2 17:41:59 darkstar kernel: [ 438.001348] 2 locks held by sdptool/2133:
Oct 2 17:41:59 darkstar kernel: [ 438.001350] #0: (sk_lock-AF_BLUETOOTH-BTPROTO_L2CAP){+.+.+.}, at: [<
faa1d2f5>] lock_sock+0xa/0xc [l2cap]
Oct 2 17:41:59 darkstar kernel: [ 438.001360] #1: (&hdev->lock){+.-.+.}, at: [<
faa20e16>] l2cap_sock_connect+0x103/0x26b [l2cap]
Oct 2 17:41:59 darkstar kernel: [ 438.001371] Pid: 2133, comm: sdptool Not tainted 2.6.31-mm1 #2
Oct 2 17:41:59 darkstar kernel: [ 438.001373] Call Trace:
Oct 2 17:41:59 darkstar kernel: [ 438.001381] [<
c022433f>] __might_sleep+0xde/0xe5
Oct 2 17:41:59 darkstar kernel: [ 438.001386] [<
c0298843>] __kmalloc+0x4a/0x15a
Oct 2 17:41:59 darkstar kernel: [ 438.001392] [<
c03f0065>] ? kzalloc+0xb/0xd
Oct 2 17:41:59 darkstar kernel: [ 438.001396] [<
c03f0065>] kzalloc+0xb/0xd
Oct 2 17:41:59 darkstar kernel: [ 438.001400] [<
c03f04ff>] device_private_init+0x15/0x3d
Oct 2 17:41:59 darkstar kernel: [ 438.001405] [<
c03f24c5>] dev_set_drvdata+0x18/0x26
Oct 2 17:41:59 darkstar kernel: [ 438.001414] [<
fa51fff7>] hci_conn_init_sysfs+0x40/0xd9 [bluetooth]
Oct 2 17:41:59 darkstar kernel: [ 438.001422] [<
fa51cdc0>] ? hci_conn_add+0x128/0x186 [bluetooth]
Oct 2 17:41:59 darkstar kernel: [ 438.001429] [<
fa51ce0f>] hci_conn_add+0x177/0x186 [bluetooth]
Oct 2 17:41:59 darkstar kernel: [ 438.001437] [<
fa51cf8a>] hci_connect+0x3c/0xfb [bluetooth]
Oct 2 17:41:59 darkstar kernel: [ 438.001442] [<
faa20e87>] l2cap_sock_connect+0x174/0x26b [l2cap]
Oct 2 17:41:59 darkstar kernel: [ 438.001448] [<
c04c8df5>] sys_connect+0x60/0x7a
Oct 2 17:41:59 darkstar kernel: [ 438.001453] [<
c024b703>] ? lock_release_non_nested+0x84/0x1de
Oct 2 17:41:59 darkstar kernel: [ 438.001458] [<
c028804b>] ? might_fault+0x47/0x81
Oct 2 17:41:59 darkstar kernel: [ 438.001462] [<
c028804b>] ? might_fault+0x47/0x81
Oct 2 17:41:59 darkstar kernel: [ 438.001468] [<
c033361f>] ? __copy_from_user_ll+0x11/0xce
Oct 2 17:41:59 darkstar kernel: [ 438.001472] [<
c04c9419>] sys_socketcall+0x82/0x17b
Oct 2 17:41:59 darkstar kernel: [ 438.001477] [<
c020329d>] syscall_call+0x7/0xb
Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Julian Anastasov [Mon, 19 Oct 2009 10:10:40 +0000 (10:10 +0000)]
tcp: fix TCP_DEFER_ACCEPT retrans calculation
Fix TCP_DEFER_ACCEPT conversion between seconds and
retransmission to match the TCP SYN-ACK retransmission periods
because the time is converted to such retransmissions. The old
algorithm selects one more retransmission in some cases. Allow
up to 255 retransmissions.
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Julian Anastasov [Mon, 19 Oct 2009 10:03:58 +0000 (10:03 +0000)]
tcp: reduce SYN-ACK retrans for TCP_DEFER_ACCEPT
Change SYN-ACK retransmitting code for the TCP_DEFER_ACCEPT
users to not retransmit SYN-ACKs during the deferring period if
ACK from client was received. The goal is to reduce traffic
during the deferring period. When the period is finished
we continue with sending SYN-ACKs (at least one) but this time
any traffic from client will change the request to established
socket allowing application to terminate it properly.
Also, do not drop acked request if sending of SYN-ACK fails.
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Julian Anastasov [Mon, 19 Oct 2009 10:01:56 +0000 (10:01 +0000)]
tcp: accept socket after TCP_DEFER_ACCEPT period
Willy Tarreau and many other folks in recent years
were concerned what happens when the TCP_DEFER_ACCEPT period
expires for clients which sent ACK packet. They prefer clients
that actively resend ACK on our SYN-ACK retransmissions to be
converted from open requests to sockets and queued to the
listener for accepting after the deferring period is finished.
Then application server can decide to wait longer for data
or to properly terminate the connection with FIN if read()
returns EAGAIN which is an indication for accepting after
the deferring period. This change still can have side effects
for applications that expect always to see data on the accepted
socket. Others can be prepared to work in both modes (with or
without TCP_DEFER_ACCEPT period) and their data processing can
ignore the read=EAGAIN notification and to allocate resources for
clients which proved to have no data to send during the deferring
period. OTOH, servers that use TCP_DEFER_ACCEPT=1 as flag (not
as a timeout) to wait for data will notice clients that didn't
send data for 3 seconds but that still resend ACKs.
Thanks to Willy Tarreau for the initial idea and to
Eric Dumazet for the review and testing the change.
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 20 Oct 2009 02:12:36 +0000 (19:12 -0700)]
Revert "tcp: fix tcp_defer_accept to consider the timeout"
This reverts commit
6d01a026b7d3009a418326bdcf313503a314f1ea.
Julian Anastasov, Willy Tarreau and Eric Dumazet have come up
with a more correct way to deal with this.
Signed-off-by: David S. Miller <davem@davemloft.net>
Paul Mundt [Mon, 19 Oct 2009 06:52:20 +0000 (15:52 +0900)]
sh: Fix up cacheflush routine symbol exports.
Fixes up flush_dcache_page() references by modules with run-time cache
disabling.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Paul Mundt [Mon, 19 Oct 2009 06:51:21 +0000 (15:51 +0900)]
sh: Fix up uninitialized variable warning in dwarf unwinder.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Tomoki Sekiyama [Mon, 19 Oct 2009 06:17:37 +0000 (23:17 -0700)]
AF_UNIX: Fix deadlock on connecting to shutdown socket
I found a deadlock bug in UNIX domain socket, which makes able to DoS
attack against the local machine by non-root users.
How to reproduce:
1. Make a listening AF_UNIX/SOCK_STREAM socket with an abstruct
namespace(*), and shutdown(2) it.
2. Repeat connect(2)ing to the listening socket from the other sockets
until the connection backlog is full-filled.
3. connect(2) takes the CPU forever. If every core is taken, the
system hangs.
PoC code: (Run as many times as cores on SMP machines.)
int main(void)
{
int ret;
int csd;
int lsd;
struct sockaddr_un sun;
/* make an abstruct name address (*) */
memset(&sun, 0, sizeof(sun));
sun.sun_family = PF_UNIX;
sprintf(&sun.sun_path[1], "%d", getpid());
/* create the listening socket and shutdown */
lsd = socket(AF_UNIX, SOCK_STREAM, 0);
bind(lsd, (struct sockaddr *)&sun, sizeof(sun));
listen(lsd, 1);
shutdown(lsd, SHUT_RDWR);
/* connect loop */
alarm(15); /* forcely exit the loop after 15 sec */
for (;;) {
csd = socket(AF_UNIX, SOCK_STREAM, 0);
ret = connect(csd, (struct sockaddr *)&sun, sizeof(sun));
if (-1 == ret) {
perror("connect()");
break;
}
puts("Connection OK");
}
return 0;
}
(*) Make sun_path[0] = 0 to use the abstruct namespace.
If a file-based socket is used, the system doesn't deadlock because
of context switches in the file system layer.
Why this happens:
Error checks between unix_socket_connect() and unix_wait_for_peer() are
inconsistent. The former calls the latter to wait until the backlog is
processed. Despite the latter returns without doing anything when the
socket is shutdown, the former doesn't check the shutdown state and
just retries calling the latter forever.
Patch:
The patch below adds shutdown check into unix_socket_connect(), so
connect(2) to the shutdown socket will return -ECONREFUSED.
Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama.qu@hitachi.com>
Signed-off-by: Masanori Yoshida <masanori.yoshida.tv@hitachi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Thomas Chou [Wed, 7 Oct 2009 14:16:43 +0000 (14:16 +0000)]
ethoc: clear only pending irqs
This patch fixed the problem of dropped packets due to lost of
interrupt requests. We should only clear what was pending at the
moment we read the irq source reg.
Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: David S. Miller <davem@davemloft.net>
Thomas Chou [Wed, 7 Oct 2009 14:16:42 +0000 (14:16 +0000)]
ethoc: inline regs access
Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: David S. Miller <davem@davemloft.net>
Wei Yongjun [Wed, 14 Oct 2009 12:54:03 +0000 (20:54 +0800)]
inotify: fix coalesce duplicate events into a single event in special case
If we do rename a dir entry, like this:
rename("/tmp/ino7UrgoJ.rename1", "/tmp/ino7UrgoJ.rename2")
rename("/tmp/ino7UrgoJ.rename2", "/tmp/ino7UrgoJ")
The duplicate events should be coalesced into a single event. But those two
events do not be coalesced into a single event, due to some bad check in
event_compare(). It can not match the two NULL inodes as the same event.
Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
Eric Paris [Mon, 29 Jun 2009 15:13:30 +0000 (11:13 -0400)]
inotify: deprecate the inotify kernel interface
In 2.6.33 there will be no users of the inotify interface. Mark it for
removal as fsnotify is more generic and is easier to use.
Signed-off-by: Eric Paris <eparis@redhat.com>
Eric Paris [Fri, 11 Sep 2009 17:03:19 +0000 (13:03 -0400)]
fsnotify: do not set group for a mark before it is on the i_list
fsnotify_add_mark is supposed to add a mark to the g_list and i_list and to
set the group and inode for the mark. fsnotify_destroy_mark_by_entry uses
the fact that ->group != NULL to know if this group should be destroyed or
if it's already been done.
But fsnotify_add_mark sets the group and inode before it actually adds the
mark to the i_list and g_list. This can result in a race in inotify, it
requires 3 threads.
sys_inotify_add_watch("file") sys_inotify_add_watch("file") sys_inotify_rm_watch([a])
inotify_update_watch()
inotify_new_watch()
inotify_add_to_idr()
^--- returns wd = [a]
inotfiy_update_watch()
inotify_new_watch()
inotify_add_to_idr()
fsnotify_add_mark()
^--- returns wd = [b]
returns to userspace;
inotify_idr_find([a])
^--- gives us the pointer from task 1
fsnotify_add_mark()
^--- this is going to set the mark->group and mark->inode fields, but will
return -EEXIST because of the race with [b].
fsnotify_destroy_mark()
^--- since ->group != NULL we call back
into inotify_freeing_mark() which calls
inotify_remove_from_idr([a])
since fsnotify_add_mark() failed we call:
inotify_remove_from_idr([a]) <------WHOOPS it's not in the idr, this could
have been any entry added later!
The fix is to make sure we don't set mark->group until we are sure the mark is
on the inode and fsnotify_add_mark will return success.
Signed-off-by: Eric Paris <eparis@redhat.com>
Roel Kluin [Sun, 18 Oct 2009 07:17:15 +0000 (00:17 -0700)]
Input: hp_sdc_rtc - fix test in hp_sdc_rtc_read_rt()
If left unsigned the hp_sdc_rtc_read_i8042timer() return value will not
be checked correctly.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Herton Ronaldo Krzesinski [Fri, 16 Oct 2009 23:13:59 +0000 (16:13 -0700)]
Input: atkbd - consolidate force release quirks for volume keys
Some machines share same key list for volume up/down release key quirks,
use only one key list.
Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Dmitry Torokhov [Thu, 15 Oct 2009 16:46:48 +0000 (09:46 -0700)]
Input: logips2pp - model 73 is actually TrackMan FX
Reported-and-tested-by: Harald Dunkel <harald.dunkel@t-online.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Dmitry Torokhov [Thu, 15 Oct 2009 16:46:48 +0000 (09:46 -0700)]
Input: i8042 - add Sony Vaio VGN-FZ240E to the nomux list
On this model, when KBD is in active multiplexing mode, acknowledgements
to reset and get ID commands issued on KBD port sometimes are delivered
to AUX3 port (touchpad) which messes up device detection. Legacy KBC
mode works fine and since there are no external PS/2 ports on this laptop
and no support for docking station we can safely disable active MUX mode.
Tested-by: Carlos R. Mafra <crmafra2@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Paul Mundt [Sun, 18 Oct 2009 06:36:02 +0000 (15:36 +0900)]
sh: Fix up smp_mb__xxx() memory barriers for SH-4A SMP.
In the past these were simply wrapping to barrier() which was sufficient
on SH SMP platforms predating SH-4A. Unfortunately due to ll/sc semantics
an explicit synco is needed in these cases, which is sorted for us by
just switching these over to smp_mb(). smp_mb() also has the benefit of
being wrapped to barrier() in the UP and non-SH4A cases, so old behaviour
is maintained for those parts.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Paul Mundt [Sun, 18 Oct 2009 06:13:28 +0000 (15:13 +0900)]
sh: Disable SCIF2 on the SH-X3 proto CPU.
SCIF2 and the FPU exceptions happen to share vector numbers, one in
EXPEVT and the other in INTEVT. This is a violation of the interface and
should have never made it in to silicon. On top of that, the demux hack
that was added for special dispatch is rather error prone, and introduces
more problems than it solves. Kill all of it off, and just refuse to deal
with SCIF2 outright.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Paul Mundt [Sat, 17 Oct 2009 12:06:39 +0000 (21:06 +0900)]
sh: Convert to asm-generic/irqflags.h.
This simplifies the irqflags support by switching over to the asm-generic
version. The necessary support functions are brought out-of-line for both
SHcompact and SHmedia instruction sets.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Randy Dunlap [Sat, 17 Oct 2009 00:54:34 +0000 (17:54 -0700)]
vmxnet3: use dev_dbg, fix build for CONFIG_BLOCK=n
vmxnet3 was using dprintk() for debugging output. This was
defined in <linux/dst.h> and was the only thing that was
used from that header file. This caused compile errors
when CONFIG_BLOCK was not enabled due to bio* and BIO*
uses in the header file, so change this driver to use
dev_dbg() for debugging output.
include/linux/dst.h:520: error: dereferencing pointer to incomplete type
include/linux/dst.h:520: error: 'BIO_POOL_BITS' undeclared (first use in this function)
include/linux/dst.h:521: error: dereferencing pointer to incomplete type
include/linux/dst.h:522: error: dereferencing pointer to incomplete type
include/linux/dst.h:525: error: dereferencing pointer to incomplete type
make[4]: *** [drivers/net/vmxnet3/vmxnet3_drv.o] Error 1
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Bhavesh Davda <bhavesh@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mikulas Patocka [Fri, 16 Oct 2009 22:18:22 +0000 (23:18 +0100)]
dm snapshot: allow chunk size to be less than page size
Allow the snapshot chunk size to be smaller than the page size
The code is now capable of handling this due to some previous
fixes and enhancements.
As the page size varies between computers, prior to this patch,
the chunk size of a snapshot dictated which machines could read it:
Snapshots created on one machine might not be readable on another.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Reviewed-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Mikulas Patocka [Fri, 16 Oct 2009 22:18:17 +0000 (23:18 +0100)]
dm snapshot: use unsigned integer chunk size
Use unsigned integer chunk size.
Maximum chunk size is 512kB, there won't ever be need to use 4GB chunk size,
so the number can be 32-bit. This fixes compiler failure on 32-bit systems
with large block devices.
Cc: stable@kernel.org
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Reviewed-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Mikulas Patocka [Fri, 16 Oct 2009 22:18:16 +0000 (23:18 +0100)]
dm snapshot: lock snapshot while supplying status
This patch locks the snapshot when returning status. It fixes a race
when it could return an invalid number of free chunks if someone
was simultaneously modifying it.
Cc: stable@kernel.org
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Mikulas Patocka [Fri, 16 Oct 2009 22:18:16 +0000 (23:18 +0100)]
dm exception store: fix failed set_chunk_size error path
Properly close the device if failing because of an invalid chunk size.
Cc: stable@kernel.org
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Mikulas Patocka [Fri, 16 Oct 2009 22:18:16 +0000 (23:18 +0100)]
dm snapshot: require non zero chunk size by end of ctr
If we are creating snapshot with memory-stored exception store, fail if
the user didn't specify chunk size. Zero chunk size would probably crash
a lot of places in the rest of snapshot code.
Cc: stable@kernel.org
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Reviewed-by: Jonathan Brassow <jbrassow@redhat.com>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Kiyoshi Ueda [Fri, 16 Oct 2009 22:18:15 +0000 (23:18 +0100)]
dm: dec_pending needs locking to save error value
Multiple instances of dec_pending() can run concurrently so a lock is
needed when it saves the first error code.
I have never experienced actual problem without locking and just found
this during code inspection while implementing the barrier support
patch for request-based dm.
This patch adds the locking.
I've done compile, boot and basic I/O testings.
Cc: stable@kernel.org
Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Zdenek Kabelac [Fri, 16 Oct 2009 22:18:15 +0000 (23:18 +0100)]
dm: add missing del_gendisk to alloc_dev error path
Add missing del_gendisk() to error path when creation of workqueue fails.
Otherwice there is a resource leak and following warning is shown:
WARNING: at fs/sysfs/dir.c:487 sysfs_add_one+0xc5/0x160()
sysfs: cannot create duplicate filename '/devices/virtual/block/dm-0'
Cc: stable@kernel.org
Signed-off-by: Zdenek Kabelac <zkabelac@redhat.com>
Reviewed-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Andrew Morton [Fri, 16 Oct 2009 22:18:15 +0000 (23:18 +0100)]
dm log: userspace fix incorrect luid cast in userspace_ctr
mips:
drivers/md/dm-log-userspace-base.c: In function `userspace_ctr':
drivers/md/dm-log-userspace-base.c:159: warning: cast from pointer to integer of different size
Cc: stable@kernel.org
Cc: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Jonathan Brassow [Fri, 16 Oct 2009 22:18:14 +0000 (23:18 +0100)]
dm snapshot: free exception store on init failure
While initializing the snapshot module, if we fail to register
the snapshot target then we must back-out the exception store
module initialization.
Cc: stable@kernel.org
Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Reviewed-by: Mikulas Patocka <mpatocka@redhat.com>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Mikulas Patocka [Fri, 16 Oct 2009 22:18:14 +0000 (23:18 +0100)]
dm snapshot: sort by chunk size to fix race
Avoid a race causing corruption when snapshots of the same origin have
different chunk sizes by sorting the internal list of snapshots by chunk
size, largest first.
https://bugzilla.redhat.com/show_bug.cgi?id=182659
For example, let's have two snapshots with different chunk sizes. The
first snapshot (1) has small chunk size and the second snapshot (2) has
large chunk size. Let's have chunks A, B, C in these snapshots:
snapshot1: ====A==== ====B====
snapshot2: ==========C==========
(Chunk size is a power of 2. Chunks are aligned.)
A write to the origin at a position within A and C comes along. It
triggers reallocation of A, then reallocation of C and links them
together using A as the 'primary' exception.
Then another write to the origin comes along at a position within B and
C. It creates pending exception for B. C already has a reallocation in
progress and it already has a primary exception (A), so nothing is done
to it: B and C are not linked.
If the reallocation of B finishes before the reallocation of C, because
there is no link with the pending exception for C it does not know to
wait for it and, the second write is dispatched to the origin and causes
data corruption in the chunk C in snapshot2.
To avoid this situation, we maintain snapshots sorted in descending
order of chunk size. This leads to a guaranteed ordering on the links
between the pending exceptions and avoids the problem explained above -
both A and B now get linked to C.
Cc: stable@kernel.org
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Linus Torvalds [Fri, 16 Oct 2009 17:13:58 +0000 (10:13 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/bp/bp
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
amd64_edac: fix DRAM base and limit extraction masks, v2
Borislav Petkov [Mon, 12 Oct 2009 15:23:03 +0000 (17:23 +0200)]
amd64_edac: fix DRAM base and limit extraction masks, v2
This is a proper fix as a follow-up to
66216a7 and
916d11b.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Linus Torvalds [Fri, 16 Oct 2009 16:25:11 +0000 (09:25 -0700)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
sata_mv: Prevent PIO commands to be defered too long if traffic in progress.
pata_sc1200: Fix crash on boot
libata: fix internal command failure handling
libata: fix PMP initialization
sata_nv: make sure link is brough up online when skipping hardreset
ahci / atiixp / pci quirks: rename AMD SB900 into Hudson-2
ahci: Add the AHCI controller Linux Device ID for NVIDIA chipsets.
pata_via: extend the rev_max for VT6330
Darrick J. Wong [Wed, 14 Oct 2009 23:21:00 +0000 (16:21 -0700)]
KVM: Prevent kvm_init from corrupting debugfs structures
I'm seeing an oops condition when kvm-intel and kvm-amd are modprobe'd
during boot (say on an Intel system) and then rmmod'd:
# modprobe kvm-intel
kvm_init()
kvm_init_debug()
kvm_arch_init() <-- stores debugfs dentries internally
(success, etc)
# modprobe kvm-amd
kvm_init()
kvm_init_debug() <-- second initialization clobbers kvm's
internal pointers to dentries
kvm_arch_init()
kvm_exit_debug() <-- and frees them
# rmmod kvm-intel
kvm_exit()
kvm_exit_debug() <-- double free of debugfs files!
*BOOM*
If execution gets to the end of kvm_init(), then the calling module has been
established as the kvm provider. Move the debugfs initialization to the end of
the function, and remove the now-unnecessary call to kvm_exit_debug() from the
error path. That way we avoid trampling on the debugfs entries and freeing
them twice.
Cc: stable@kernel.org
Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Frederik Deweerdt [Fri, 9 Oct 2009 11:42:56 +0000 (11:42 +0000)]
KVM: MMU: fix pointer cast
On a 32 bits compile, commit
3da0dd433dc399a8c0124d0614d82a09b6a49bce
introduced the following warnings:
arch/x86/kvm/mmu.c: In function ‘kvm_set_pte_rmapp’:
arch/x86/kvm/mmu.c:770: warning: cast to pointer from integer of different size
arch/x86/kvm/mmu.c: In function ‘kvm_set_spte_hva’:
arch/x86/kvm/mmu.c:849: warning: cast from pointer to integer of different size
The following patch uses 'unsigned long' instead of u64 to match the
pointer size on both arches.
Signed-off-by: Frederik Deweerdt <frederik.deweerdt@xprog.eu>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Marcelo Tosatti [Thu, 8 Oct 2009 13:55:03 +0000 (10:55 -0300)]
KVM: use proper hrtimer function to retrieve expiration time
hrtimer->base can be temporarily NULL due to racing hrtimer_start.
See switch_hrtimer_base/lock_hrtimer_base.
Use hrtimer_get_remaining which is robust against it.
CC: stable@kernel.org
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Gwendal Grignou [Mon, 12 Oct 2009 22:44:00 +0000 (15:44 -0700)]
sata_mv: Prevent PIO commands to be defered too long if traffic in progress.
Use excl_link when non NCQ commands are defered, to be sure they are processed
as soon as outstanding commands are completed. It prevents some commands to be
defered indifinitely when using a port multiplier.
Signed-off-by: Gwendal Grignou <gwendal@google.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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