Kumar Gala [Tue, 10 Feb 2009 03:33:06 +0000 (21:33 -0600)]
powerpc/85xx: Fixed PCI IO region sizes in mpc8572ds*.dts
The PCI IO region sizes where incorrectly set to 1M instead of 64k.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Michael Ellerman [Thu, 22 Jan 2009 20:54:33 +0000 (20:54 +0000)]
powerpc/pseries: Return the number of MSIs we could allocate
If we can't allocate the requested number of MSIs, we can still tell the
generic code how many we were able to allocate. That can then be passed
onto the driver, allowing it to request that many in future, and
probably succeeed.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Michael Ellerman [Thu, 22 Jan 2009 20:54:32 +0000 (20:54 +0000)]
powerpc/pseries: Check for MSI-X also in rtas_msi_pci_irq_fixup()
We also need to check that the device isn't using MSI-X in the irq fixup
routine, otherwise we might leave MSI-Xs configured at boot.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Michael Ellerman [Thu, 22 Jan 2009 20:54:31 +0000 (20:54 +0000)]
powerpc/pseries: Add support for ibm,req#msi-x
Firmware encodes the number of MSI-X requested by a device in a
different property than for MSI. Pull the property name out as a
parameter and share the logic for both cases.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Michael Ellerman [Thu, 22 Jan 2009 20:54:31 +0000 (20:54 +0000)]
powerpc/pseries: Fix MSI-X interrupt querying
We need to increment i in the loop that queries what interrupts firmware
gave us, otherwise we'll incorrectly use the first value over and over.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Michael Ellerman [Wed, 14 Jan 2009 20:46:02 +0000 (20:46 +0000)]
lmb: Rework lmb_dump_all() output
The lmb_dump_all() output didn't include the RMO size, which is
interesting on powerpc. The output was also a bit spacey and not well
aligned, and didn't show you the end addresses.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Michael Ellerman [Wed, 14 Jan 2009 20:46:01 +0000 (20:46 +0000)]
powerpc: Allow debugging of LMBs with lmb=debug
The lmb debugging can be turned on at boottime with lmb=debug on the
command line. However on powerpc that doesn't work, because we don't
necessarily call lmb_dump_all().
So always call lmb_dump_all() after lmb_analyze(), no output is
generated unless lmb=debug is found on the command line.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Michael Ellerman [Wed, 14 Jan 2009 20:43:15 +0000 (20:43 +0000)]
powerpc: Remove unused ppc64_terminate_msg()
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Milton Miller [Thu, 8 Jan 2009 02:19:49 +0000 (02:19 +0000)]
powerpc/pseries: Remove write only variable in PCI DLPAR
Since we never hotplug add an isa bus, we never need to set primary.
Delete this write-only variable.
Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Milton Miller [Thu, 8 Jan 2009 02:19:45 +0000 (02:19 +0000)]
powerpc/numa: Remove redundant find_cpu_node()
Use of_get_cpu_node, which is a superset of numa.c's find_cpu_node in
a less restrictive section (text vs cpuinit).
Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Milton Miller [Thu, 8 Jan 2009 02:19:43 +0000 (02:19 +0000)]
powerpc/numa: Avoid possible reference beyond prop. length in find_min_common_depth()
find_min_common_depth() was checking the property length incorrectly.
The value is in bytes not cells, and it is using the second entry.
Signed-off-By: Milton Miller <miltonm@bga.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Benjamin Herrenschmidt [Wed, 11 Feb 2009 02:37:49 +0000 (13:37 +1100)]
Merge commit 'gcl/next' into next
Benjamin Herrenschmidt [Wed, 11 Feb 2009 02:37:44 +0000 (13:37 +1100)]
Merge commit 'kumar/next' into next
Stefan Richter [Tue, 10 Feb 2009 22:27:32 +0000 (23:27 +0100)]
hugetlbfs: fix build failure with !CONFIG_HUGETLBFS
Fix regression due to
5a6fe125950676015f5108fb71b2a67441755003,
"Do not account for the address space used by hugetlbfs using VM_ACCOUNT"
which added an argument to the function hugetlb_file_setup() but not to
the macro hugetlb_file_setup().
Reported-by: Chris Clayton <chris2553@googlemail.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Tue, 10 Feb 2009 19:55:12 +0000 (11:55 -0800)]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc: Add missing sparsemem.h include
powerpc/pci: mmap anonymous memory when legacy_mem doesn't exist
powerpc/cell: Add missing #include for oprofile
powerpc/ftrace: Fix math to calculate offset in TOC
powerpc: Don't emulate mr. instructions
powerpc/fsl-booke: Fix mapping functions to use phys_addr_t
arch/powerpc: Eliminate double sizeof
powerpc/cpm2: Fix set interrupt type
powerpc/83xx: Fix TSEC0 workability on MPC8313E-RDB boards
powerpc/83xx: Fix missing #{address,size}-cells in mpc8313erdb.dts
powerpc/83xx: Build breakage for CONFIG_PM but no CONFIG_SUSPEND
Linus Torvalds [Tue, 10 Feb 2009 19:48:49 +0000 (11:48 -0800)]
Merge git://git./linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc64: Fix probe_kernel_{read,write}().
sparc64: Kill .fixup section bloat.
sparc64: Don't hook up pcr_ops on spitfire chips.
sparc64: Call dump_stack() in die_nmi().
Linus Torvalds [Tue, 10 Feb 2009 19:48:11 +0000 (11:48 -0800)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (23 commits)
bridge: Fix LRO crash with tun
IPv6: fix to set device name when new IPv6 over IPv6 tunnel device is created.
gianfar: Fix boot hangs while bringing up gianfar ethernet
netfilter: xt_sctp: sctp chunk mapping doesn't work
netfilter: ctnetlink: fix echo if not subscribed to any multicast group
netfilter: ctnetlink: allow changing NAT sequence adjustment in creation
netfilter: nf_conntrack_ipv6: don't track ICMPv6 negotiation message
netfilter: fix tuple inversion for Node information request
netxen: fix msi-x interrupt handling
de2104x: force correct order when writing to rx ring
tun: Fix unicast filter overflow
drivers/isdn: introduce missing kfree
drivers/atm: introduce missing kfree
sunhme: Don't match PCI devices in SBUS probe.
9p: fix endian issues [attempt 3]
net_dma: call dmaengine_get only if NET_DMA enabled
3c509: Fix resume from hibernation for PnP mode.
sungem: Soft lockup in sungem on Netra AC200 when switching interface up
RxRPC: Fix a potential NULL dereference
r8169: Don't update statistics counters when interface is down
...
Mel Gorman [Tue, 10 Feb 2009 14:02:27 +0000 (14:02 +0000)]
Do not account for the address space used by hugetlbfs using VM_ACCOUNT
When overcommit is disabled, the core VM accounts for pages used by anonymous
shared, private mappings and special mappings. It keeps track of VMAs that
should be accounted for with VM_ACCOUNT and VMAs that never had a reserve
with VM_NORESERVE.
Overcommit for hugetlbfs is much riskier than overcommit for base pages
due to contiguity requirements. It avoids overcommiting on both shared and
private mappings using reservation counters that are checked and updated
during mmap(). This ensures (within limits) that hugepages exist in the
future when faults occurs or it is too easy to applications to be SIGKILLed.
As hugetlbfs makes its own reservations of a different unit to the base page
size, VM_ACCOUNT should never be set. Even if the units were correct, we would
double account for the usage in the core VM and hugetlbfs. VM_NORESERVE may
be set because an application can request no reserves be made for hugetlbfs
at the risk of getting killed later.
With commit
fc8744adc870a8d4366908221508bb113d8b72ee, VM_NORESERVE and
VM_ACCOUNT are getting unconditionally set for hugetlbfs-backed mappings. This
breaks the accounting for both the core VM and hugetlbfs, can trigger an
OOM storm when hugepage pools are too small lockups and corrupted counters
otherwise are used. This patch brings hugetlbfs more in line with how the
core VM treats VM_NORESERVE but prevents VM_ACCOUNT being set.
Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Michael Neuling [Sun, 8 Feb 2009 14:49:39 +0000 (14:49 +0000)]
powerpc: Add missing sparsemem.h include
arch/powerpc/platforms/pseries/hotplug-memory.c uses
remove_section_mapping() but doesn't include sparsemem.h which defines
it. This can cause compilation fails for some configs.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Benjamin Herrenschmidt [Sun, 8 Feb 2009 14:27:21 +0000 (14:27 +0000)]
powerpc/pci: mmap anonymous memory when legacy_mem doesn't exist
The new legacy_mem file in sysfs is causing problems with X on machines
that don't support legacy memory access. The way I initially implemented
it, we would fail with -ENXIO when trying to mmap it, thus exposing to
X that we do support the API but there is no legacy memory.
Unfortunately, X poor error handling is causing it to fail to start when
it gets this error.
This implements a workaround hack that instead maps anonymous memory
instead (using shmem if VM_SHARED is set, just like /dev/zero does).
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Michael Neuling [Sun, 8 Feb 2009 13:04:14 +0000 (13:04 +0000)]
powerpc/cell: Add missing #include for oprofile
arch/powerpc/oprofile/cell/spu_profiler.c is missing a asm/time.h
include which is required for ppc_proc_freq. This can cause compile
failures for some config combinations.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Steven Rostedt [Sat, 7 Feb 2009 20:22:40 +0000 (20:22 +0000)]
powerpc/ftrace: Fix math to calculate offset in TOC
Impact: fix dynamic ftrace with large modules in PPC64
The math to calculate the offset into the TOC that is taken from reading
the trampoline is incorrect. The bottom half of the offset is a signed
extended short. The current code was using an OR to create the offset
when it should have been using an addition.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Ananth N Mavinakayanahalli [Fri, 6 Feb 2009 02:02:00 +0000 (02:02 +0000)]
powerpc: Don't emulate mr. instructions
Currently emulate_step() emulates mr. instructions without updating cr0
and this can be disastrous. Don't emulate mr.
This bug has been around for a while, but I am not sure if its a worthy
-stable candidate. I'll leave it to Ben do decide.
Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Kumar Gala [Tue, 10 Feb 2009 03:08:07 +0000 (21:08 -0600)]
powerpc/fsl-booke: Fix mapping functions to use phys_addr_t
Fixed v_mapped_by_tlbcam() and p_mapped_by_tlbcam() to use phys_addr_t
instead of unsigned long. In 36-bit physical mode we really need these
functions to deal with phys_addr_t when trying to match a physical
address or when returning one.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Herbert Xu [Mon, 9 Feb 2009 23:07:18 +0000 (15:07 -0800)]
bridge: Fix LRO crash with tun
> Kernel BUG at drivers/net/tun.c:444
> invalid opcode: 0000 [1] SMP
> last sysfs file: /class/net/lo/ifindex
> CPU 0
> Modules linked in: tun ipt_MASQUERADE iptable_nat ip_nat xt_state ip_conntrack
> nfnetlink ipt_REJECT xt_tcpudp iptable_filter d
> Pid: 6912, comm: qemu-kvm Tainted: G 2.6.18-128.el5 #1
> RIP: 0010:[<
ffffffff886f57b0>] [<
ffffffff886f57b0>]
> :tun:tun_chr_readv+0x2b1/0x3a6
> RSP: 0018:
ffff8102202c5e48 EFLAGS:
00010246
> RAX:
0000000000000000 RBX:
ffff8102202c5e98 RCX:
0000000004010000
> RDX:
ffff810227063680 RSI:
ffff8102202c5e9e RDI:
ffff8102202c5e92
> RBP:
0000000000010ff6 R08:
0000000000000000 R09:
0000000000000001
> R10:
ffff8102202c5e94 R11:
0000000000000202 R12:
ffff8102275357c0
> R13:
ffff81022755e500 R14:
0000000000000000 R15:
ffff8102202c5ef8
> FS:
00002ae4398db980(0000) GS:
ffffffff803ac000(0000) knlGS:
0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0:
000000008005003b
> CR2:
00002ae4ab514000 CR3:
0000000221344000 CR4:
00000000000026e0
> Process qemu-kvm (pid: 6912, threadinfo
ffff8102202c4000, task
>
ffff81022e58d820)
> Stack:
00000000498735cb ffff810229d1a3c0 0000000000000000 ffff81022e58d820
>
ffffffff8008a461 ffff81022755e528 ffff81022755e528 ffffffff8009f925
>
000005ea05ea0000 ffff8102209d0000 00001051143e1600 ffffffff8003c00e
> Call Trace:
> [<
ffffffff8008a461>] default_wake_function+0x0/0xe
> [<
ffffffff8009f925>] enqueue_hrtimer+0x55/0x70
> [<
ffffffff8003c00e>] hrtimer_start+0xbc/0xce
> [<
ffffffff886f58bf>] :tun:tun_chr_read+0x1a/0x1f
> [<
ffffffff8000b3f3>] vfs_read+0xcb/0x171
> [<
ffffffff800117d4>] sys_read+0x45/0x6e
> [<
ffffffff8005d116>] system_call+0x7e/0x83
>
>
> Code: 0f 0b 68 40 62 6f 88 c2 bc 01 f6 42 0a 08 74 0c 80 4c 24 41
> RIP [<
ffffffff886f57b0>] :tun:tun_chr_readv+0x2b1/0x3a6
> RSP <
ffff8102202c5e48>
> <0>Kernel panic - not syncing: Fatal exception
This crashed when an LRO packet generated by bnx2x reached a
tun device through the bridge. We're supposed to drop it at
the bridge. However, because the check was placed in br_forward
instead of __br_forward, it's only effective if we are sending
the packet through a single port.
This patch fixes it by moving the check into __br_forward.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Noriaki TAKAMIYA [Mon, 9 Feb 2009 23:01:19 +0000 (15:01 -0800)]
IPv6: fix to set device name when new IPv6 over IPv6 tunnel device is created.
When the user creates IPv6 over IPv6 tunnel, the device name created
by the kernel isn't set to t->parm.name, which is referred as the
result of ioctl().
Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jarek Poplawski [Mon, 9 Feb 2009 22:59:30 +0000 (14:59 -0800)]
gianfar: Fix boot hangs while bringing up gianfar ethernet
Ira Snyder found that commit
8c7396aebb68994c0519e438eecdf4d5fa9c7844
"gianfar: Merge Tx and Rx interrupt for scheduling clean up ring" can
cause hangs. It's because there was removed clearing of interrupts in
gfar_schedule_cleanup() (which is called by an interrupt handler) in
case when netif scheduling has been disabled. This patch brings back
this action and a comment.
Reported-by: Ira Snyder <iws@ovro.caltech.edu>
Reported-by: Peter Korsgaard <jacmet@sunsite.dk>
Bisected-by: Ira Snyder <iws@ovro.caltech.edu>
Tested-by: Peter Korsgaard <jacmet@sunsite.dk>
Tested-by: Ira Snyder <iws@ovro.caltech.edu>
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Qu Haoran [Mon, 9 Feb 2009 22:34:56 +0000 (14:34 -0800)]
netfilter: xt_sctp: sctp chunk mapping doesn't work
When user tries to map all chunks given in argument, kernel
works on a copy of the chunkmap, but at the end it doesn't
check the copy, but the orginal one.
Signed-off-by: Qu Haoran <haoran.qu@6wind.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pablo Neira Ayuso [Mon, 9 Feb 2009 22:34:26 +0000 (14:34 -0800)]
netfilter: ctnetlink: fix echo if not subscribed to any multicast group
This patch fixes echoing if the socket that has sent the request to
create/update/delete an entry is not subscribed to any multicast
group. With the current code, ctnetlink would not send the echo
message via unicast as nfnetlink_send() would be skip.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pablo Neira Ayuso [Mon, 9 Feb 2009 22:33:57 +0000 (14:33 -0800)]
netfilter: ctnetlink: allow changing NAT sequence adjustment in creation
This patch fixes an inconsistency in the current ctnetlink code
since NAT sequence adjustment bit can only be updated but not set
in the conntrack entry creation.
This patch is used by conntrackd to successfully recover newly
created entries that represent connections with helpers and NAT
payload mangling.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Leblond [Mon, 9 Feb 2009 22:33:20 +0000 (14:33 -0800)]
netfilter: nf_conntrack_ipv6: don't track ICMPv6 negotiation message
This patch removes connection tracking handling for ICMPv6 messages
related to Stateless Address Autoconfiguration, MLD, and MLDv2. They
can not be tracked because they are massively using multicast (on
pre-defined address). But they are not invalid and should not be
detected as such.
Signed-off-by: Eric Leblond <eric@inl.fr>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Leblond [Mon, 9 Feb 2009 22:33:03 +0000 (14:33 -0800)]
netfilter: fix tuple inversion for Node information request
The patch fixes a typo in the inverse mapping of Node Information
request. Following draft-ietf-ipngwg-icmp-name-lookups-09, "Querier"
sends a type 139 (ICMPV6_NI_QUERY) packet to "Responder" which answer
with a type 140 (ICMPV6_NI_REPLY) packet.
Signed-off-by: Eric Leblond <eric@inl.fr>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Mon, 9 Feb 2009 22:00:16 +0000 (14:00 -0800)]
Merge git://git./linux/kernel/git/mason/btrfs-unstable
* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
Btrfs: don't use spin_is_contended
Linus Torvalds [Mon, 9 Feb 2009 21:59:51 +0000 (13:59 -0800)]
Merge git://git./linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
USB: Storage: Update unusual_devs entry for Datafab KECF-USB
USB: Correct Makefile to make isp1760 buildable
USB: option: New mobile broadband modems to be supported
USB: two more usb ids for ti_usb_3410_5052
USB: ftdi_sio: unlock_kernel() on error in set_serial_info()
USB: usb-storage: add Pentax to the bad-vendor list
USB: ftdi_sio: add support for the NDI Polaris system
USB: usb-serial: fix the aircable_init failure path
USB: usb-storage: remove WARN from last-sector hacks
Revert USB: option: add Pantech cards
USB: cdc-acm.c: remove duplicate lines for MTK gps support
USB: fsl_qe_udc: Fix stalled TX requests bug
USB: fsl_qe_udc: Fix muram corruption by disabled endpoints
USB: fsl_qe_udc: Fix disconnects reporting during bus reset
USB: fsl_qe_udc: Fix QE USB controller initialization
USB: fsl_qe_udc: Fix recursive locking bug in ch9getstatus()
USB: fsl_qe_udc: Fix oops on QE UDC probe failure
Linus Torvalds [Mon, 9 Feb 2009 21:58:40 +0000 (13:58 -0800)]
Merge git://git./linux/kernel/git/gregkh/staging-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6:
Staging: panel: fix lcd panel driver build failure
Staging: android: fix up units in timed_gpio
Staging: android: ram_console: Disable ECC when early init is enabled and validate buffer size
Staging: at76_usb: Add support for OQO Model 01+
Staging: at76_usb: fix bugs introduced by "Staging: at76_usb: cleanup dma on stack issues"
Revert Staging: at76_usb: update drivers/staging/at76_usb w/ mac80211 port
Linus Torvalds [Mon, 9 Feb 2009 21:58:22 +0000 (13:58 -0800)]
Merge branch 'fixes' of git://git./linux/kernel/git/davej/cpufreq
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
[CPUFREQ] powernow-k8: Get transition latency from ACPI _PSS table
[CPUFREQ] Make ignore_nice_load setting of ondemand work as expected.
Chris Mason [Mon, 9 Feb 2009 21:22:03 +0000 (16:22 -0500)]
Btrfs: don't use spin_is_contended
Btrfs was using spin_is_contended to see if it should drop locks before
doing extent allocations during btrfs_search_slot. The idea was to avoid
expensive searches in the tree unless the lock was actually contended.
But, spin_is_contended is specific to the ticket spinlocks on x86, so this
is causing compile errors everywhere else.
In practice, the contention could easily appear some time after we started
doing the extent allocation, and it makes more sense to always drop the lock
instead.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Sachin P. Sant [Tue, 3 Feb 2009 15:40:58 +0000 (21:10 +0530)]
Staging: panel: fix lcd panel driver build failure
* Fix build break for lcd panel driver.
Signed-off-by : Sachin Sant <sachinp@in.ibm.com>
Cc: Willy Tarreau <w@1wt.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Wed, 4 Feb 2009 23:05:05 +0000 (15:05 -0800)]
Staging: android: fix up units in timed_gpio
The last build fix I did messed up the units of the sysfs file.
This puts them back to be milliseconds, like they originally were.
Thanks to Juha Motorsportcom for pointing this out.
Reported-by: Juha Motorsportcom <juha_motorsportcom@luukku.com>
Cc: Mike Lockwood <lockwood@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Arve Hjønnevåg [Sat, 31 Jan 2009 04:21:09 +0000 (20:21 -0800)]
Staging: android: ram_console: Disable ECC when early init is enabled and validate buffer size
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jamie Lentin [Wed, 4 Feb 2009 13:38:44 +0000 (13:38 +0000)]
Staging: at76_usb: Add support for OQO Model 01+
Add USB device ID for OQO 01+'s internal wireless LAN
An OQO employee mentions the chip's true identity here:-
ftp://ftp.oqo.com/unsupported/linux/OQOLinux.html
Signed-off-by: Jamie Lentin <jm@lentin.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jason Andryuk [Fri, 30 Jan 2009 14:05:03 +0000 (09:05 -0500)]
Staging: at76_usb: fix bugs introduced by "Staging: at76_usb: cleanup dma on stack issues"
Tracking down the firmware loading problem led to this commit.
$ git bisect bad
0d1d1424330cc1934f2b2742f0cfa2c31e6a250b is first bad commit
commit
0d1d1424330cc1934f2b2742f0cfa2c31e6a250b
Author: Oliver Neukum <oliver@neukum.org>
Date: Thu Dec 18 13:16:40 2008 +0100
Staging: at76_usb: cleanup dma on stack issues
- no DMA on stack
- cleanup unclear endianness issue
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
:040000 040000
c4fee9ea0fef25926229d810d19dc2f89cca9401
8b165a35d16280d2413b2700a6080ef290ca1009 M drivers
The "no DMA on stack" conversion was incomplete with respect to
updating the arguments passed to usb_control_msg. The value 40 is
hardcoded as it was prior to conversion.
The driver can now load firmware, but is not fully functional.
Signed-off-by: Jason Andryuk <jandryuk@gmail.com>
Cc: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Wed, 4 Feb 2009 00:28:48 +0000 (16:28 -0800)]
Revert Staging: at76_usb: update drivers/staging/at76_usb w/ mac80211 port
Reverts
02227c28391b5059a7710d6039c52912b0ee2c1d
(Had to be done by hand due to other patches that had come after this.)
Turns out that we don't want the mac80211 port of this driver just yet, as
there is a different driver working on adding this support.
So keep things old and different for now.
This is being reverted at the request of the linux-wireless developers.
Cc: Kalle Valo <kalle.valo@iki.fi>
Cc: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Nick Holloway [Sun, 25 Jan 2009 16:58:43 +0000 (16:58 +0000)]
USB: Storage: Update unusual_devs entry for Datafab KECF-USB
This device suffers from the off-by-one error when reporting the capacity,
so add US_FL_FIX_CAPACITY to the existing entry.
Signed-off-by: Nick Holloway <Nick.Holloway@pyrites.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Ivan Kuten [Fri, 6 Feb 2009 09:42:34 +0000 (17:42 +0800)]
USB: Correct Makefile to make isp1760 buildable
Signed-off-by: Ivan Kuten <ivan.kuten@promwad.com>
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Dirk De Schepper [Fri, 6 Feb 2009 20:48:34 +0000 (20:48 +0000)]
USB: option: New mobile broadband modems to be supported
- New Novatel and Dell mobile broadband modem products added
- Dell pid variables used in stead of numerical PIDs for known
products
Signed-off-by: Dirk De Schepper <ddeschepper@nvtl.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Matthias Urlichs <matthias@urlichs.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Oliver Neukum [Wed, 4 Feb 2009 15:38:33 +0000 (16:38 +0100)]
USB: two more usb ids for ti_usb_3410_5052
This patch adds device IDs and balances the counts to make the
hot ID additioning mechanism work.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Cc: stable <stable@kernel.org>
Cc: Chris Adams <cmadams@hiwaay.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Dan Carpenter [Tue, 3 Feb 2009 08:11:38 +0000 (11:11 +0300)]
USB: ftdi_sio: unlock_kernel() on error in set_serial_info()
There was one error path where unlock_kernel() wasn't called.
This was found with a code checker (http://repo.or.cz/w/smatch.git/)
Compile tested only, sorry.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Wed, 4 Feb 2009 20:48:03 +0000 (15:48 -0500)]
USB: usb-storage: add Pentax to the bad-vendor list
This patch (as1202) adds Pentax to usb-storage's list of bad vendors
whose devices always need the CAPACITY_HEURISTICS flag. This is in
addition to the existing entries: Nokia, Nikon, and Motorola.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Virgo Pärna <virgo.parna@mail.ee>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Stephane Clerambault [Mon, 2 Feb 2009 21:39:12 +0000 (13:39 -0800)]
USB: ftdi_sio: add support for the NDI Polaris system
Add support for the NDI Polaris system *http://www.ndigital.com/).
Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Dave Young [Sun, 1 Feb 2009 10:54:54 +0000 (18:54 +0800)]
USB: usb-serial: fix the aircable_init failure path
The failure path of aircable_init is wrong, fix the order of (goto) labels.
Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
Acked-by: Naranjo Manuel Francisco <naranjo.manuel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Mon, 2 Feb 2009 14:51:01 +0000 (09:51 -0500)]
USB: usb-storage: remove WARN from last-sector hacks
This patch (as1201) removes the WARN() from the last-sector hacks in
usb-storage, thereby making the code match the version now in
.27-stable and .28-stable. The WARN() isn't needed, since there is no
longer any intention of assuming that all storage devices have an even
number of sectors, and it annoys users for no good reason.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Wed, 4 Feb 2009 00:02:21 +0000 (16:02 -0800)]
Revert USB: option: add Pantech cards
Revert
8b6346ec899713a90890c9e832f7eff91ea73504 as these devices really
work just fine with the cdc-acm driver, as they follow the spec
properly.
Thanks to Chuck Ebbert for pointing out the problem here.
Cc: Chuck Ebbert <cebbert@redhat.com>
Cc: Dan Williams <dcbw@redhat.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
James Treacy [Fri, 30 Jan 2009 01:17:17 +0000 (20:17 -0500)]
USB: cdc-acm.c: remove duplicate lines for MTK gps support
The same patch to add support for MTK gps loggers was submitted by two
different people and applied twice. Remove the redundant lines.
Signed-off-by: James Treacy <treacy@debian.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Anton Vorontsov [Thu, 25 Dec 2008 14:15:14 +0000 (17:15 +0300)]
USB: fsl_qe_udc: Fix stalled TX requests bug
While disabling an endpoint the driver nuking any pending requests,
thus completing them with -ESHUTDOWN status. But the driver doesn't
clear the tx_req, which means that a next TX request (after
ep_enable), might get stalled, since the driver won't queue the new
reqests.
This patch fixes a bug I'm observing with ethernet gadget while
playing with ifconfig usb0 up/down (the up/down sequence disables
and enables `in' and `out' endpoints).
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Anton Vorontsov [Thu, 25 Dec 2008 14:15:11 +0000 (17:15 +0300)]
USB: fsl_qe_udc: Fix muram corruption by disabled endpoints
Before freeing an endpoint's muram memory, we should stop all activity
of the endpoint, otherwise the QE UDC controller might do nasty things
with the muram memory that isn't belong to that endpoint anymore.
The qe_ep_reset() effectively flushes the hardware fifos, finishes all
late transaction and thus prevents the corruption.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Anton Vorontsov [Thu, 25 Dec 2008 14:15:09 +0000 (17:15 +0300)]
USB: fsl_qe_udc: Fix disconnects reporting during bus reset
Freescale QE UDC controllers can't report the "port change" states,
so the only way to handle disconnects is to process bus reset
interrupts. The bus reset can take some time, that is, few irqs.
Gadgets may print the disconnection events, and this causes few
repetitive messages in the kernel log.
This patch fixes the issue by using the usb_state machine, if the
usb controller has been already reset, just quit the reset irq
early.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Anton Vorontsov [Thu, 25 Dec 2008 14:15:07 +0000 (17:15 +0300)]
USB: fsl_qe_udc: Fix QE USB controller initialization
qe_udc_reg_init() leaves the USB controller enabled before muram memory
initialized. Sometimes the uninitialized muram memory confuses the
controller, and it start sending the busy interrupts.
Fix this by disabling the controller, it will be enabled later by
the gadget driver, at bind time.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Anton Vorontsov [Thu, 25 Dec 2008 14:15:05 +0000 (17:15 +0300)]
USB: fsl_qe_udc: Fix recursive locking bug in ch9getstatus()
The call chain is this:
qe_udc_irq() <- grabs the udc->lock spinlock
rx_irq()
qe_ep0_rx()
ep0_setup_handle()
setup_received_handle()
ch9getstatus()
qe_ep_queue() <- tries to grab the udc->lock again
It seems unsafe to temporarily drop the lock in the ch9getstatus(),
so to fix that bug the lock-less __qe_ep_queue() function
implemented and used by the ch9getstatus().
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Anton Vorontsov [Thu, 25 Dec 2008 14:15:02 +0000 (17:15 +0300)]
USB: fsl_qe_udc: Fix oops on QE UDC probe failure
In case of probing errors the driver kfrees the udc_controller, but it
doesn't set the pointer to NULL.
When usb_gadget_register_driver is called, it checks for udc_controller
!= NULL, the check passes and the driver accesses nonexistent memory.
Fix this by setting udc_controller to NULL in case of errors.
While at it, also implement irq_of_parse_and_map()'s failure and cleanup
cases.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Linus Torvalds [Mon, 9 Feb 2009 18:30:19 +0000 (10:30 -0800)]
Merge branch 'for-2.6.29' of git://linux-nfs.org/~bfields/linux
* 'for-2.6.29' of git://linux-nfs.org/~bfields/linux:
lockd: fix regression in lockd's handling of blocked locks
J. Bruce Fields [Wed, 4 Feb 2009 22:35:38 +0000 (17:35 -0500)]
lockd: fix regression in lockd's handling of blocked locks
If a client requests a blocking lock, is denied, then requests it again,
then here in nlmsvc_lock() we will call vfs_lock_file() without FL_SLEEP
set, because we've already queued a block and don't need the locks code
to do it again.
But that means vfs_lock_file() will return -EAGAIN instead of
FILE_LOCK_DENIED. So we still need to translate that -EAGAIN return
into a nlm_lck_blocked error in this case, and put ourselves back on
lockd's block list.
The bug was introduced by
bde74e4bc64415b1 "locks: add special return
value for asynchronous locks".
Thanks to Frank van Maarseveen for the report; his original test
case was essentially
for i in `seq 30`; do flock /nfsmount/foo sleep 10 & done
Tested-by: Frank van Maarseveen <frankvm@frankvm.com>
Reported-by: Frank van Maarseveen <frankvm@frankvm.com>
Cc: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Linus Torvalds [Mon, 9 Feb 2009 16:57:29 +0000 (08:57 -0800)]
i915: Fix more size_t format string warnings
The DRI people seem to have a hard time getting these right (see also
commit
aeb565dfc3ac4c8b47c5049085b4c7bfb2c7d5d7).
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Mon, 9 Feb 2009 16:52:28 +0000 (08:52 -0800)]
Merge branch 'drm-fixes' of git://git./linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm/i915: select framebuffer support automatically
drm/i915: add get_vblank_counter function for GM45
drm/i915: capture last_vblank count at IRQ uninstall time too
drm/i915: Unlock mutex on i915_gem_fault() error path
drm/i915: Quiet the message on get/setparam ioctl with an unknown value.
drm/i915: skip LVDS initialization on Apple Mac Mini
drm/i915: sync SDVO code with stable userland modesetting driver
drm/i915: Unref the object after failing to set tiling mode.
drm/i915: add fence register management to execbuf
drm/i915: Return error from i915_gem_object_get_fence_reg() when failing.
drm/i915: Set up an MTRR covering the GTT at driver load.
drm/i915: Skip SDVO/HDMI init when the chipset tells us it's not present.
drm/i915: Suppress GEM teardown on X Server exit in KMS mode.
drm/radeon: fix ioremap conflict with AGP mappings
i915: fix unneeded locking in i915 LVDS get modes code.
Linus Torvalds [Mon, 9 Feb 2009 16:52:02 +0000 (08:52 -0800)]
Merge git://git./linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: scatterwalk - Avoid flush_dcache_page on slab pages
crypto: shash - Fix tfm destruction
crypto: api - Fix zeroing on free
crypto: shash - Fix module refcount
crypto: api - Fix algorithm test race that broke aead initialisation
David Howells [Mon, 9 Feb 2009 16:47:36 +0000 (16:47 +0000)]
FRV: in_interrupt() requires #inclusion of linux/hardirq.h not asm/hardirq.h now
in_interrupt() requires #inclusion of linux/hardirq.h not asm/hardirq.h now.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Kyle McMartin [Sun, 8 Feb 2009 22:39:58 +0000 (17:39 -0500)]
x86: spinlocks: define dummy __raw_spin_is_contended
Architectures other than mips and x86 are not using ticket spinlocks.
Therefore, the contention on the lock is meaningless, since there is
nobody known to be waiting on it (arguably /fairly/ unfair locks).
Dummy it out to return 0 on other architectures.
Signed-off-by: Kyle McMartin <kyle@redhat.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David S. Miller [Mon, 9 Feb 2009 06:32:31 +0000 (22:32 -0800)]
sparc64: Fix probe_kernel_{read,write}().
This is based upon a report from Chris Torek and his initial patch.
From Chris's report:
--------------------
This came up in testing kgdb, using the built-in tests -- turn
on CONFIG_KGDB_TESTS, then
echo V1 > /sys/module/kgdbts/parameters/kgdbts
-- but it would affect using kgdb if you were debugging and looking
at bad pointers.
--------------------
When we get a copy_{from,to}_user() request and the %asi is set to
something other than ASI_AIUS (which is userspace) then we branch off
to a routine called memcpy_user_stub(). It just does a straight
memcpy since we are copying from kernel to kernel in this case.
The logic was that since source and destination are both kernel
pointers we don't need to have exception checks.
But for what probe_kernel_{read,write}() is trying to do, we have to
have the checks, otherwise things like kgdb bad kernel pointer
accesses don't do the right thing.
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 9 Feb 2009 06:00:55 +0000 (22:00 -0800)]
sparc64: Kill .fixup section bloat.
This is an implementation of a suggestion made by Chris Torek:
--------------------
Something else I noticed in passing: the EX and EX_LD/EX_ST macros
scattered throughout the various .S files make a fair bit of .fixup
code, all of which does the same thing. At the cost of one symbol
in copy_in_user.S, you could just have one common two-instruction
retl-and-mov-1 fixup that they all share.
--------------------
The following is with a defconfig build:
text data bss dec hex filename
3972767 344024 584449
4901240 4ac978 vmlinux.orig
3968887 344024 584449
4897360 4aba50 vmlinux
Signed-off-by: David S. Miller <davem@davemloft.net>
Herbert Xu [Mon, 9 Feb 2009 03:22:14 +0000 (14:22 +1100)]
crypto: scatterwalk - Avoid flush_dcache_page on slab pages
It's illegal to call flush_dcache_page on slab pages on a number
of architectures. So this patch avoids doing so if PageSlab is
true.
In future we can move the flush_dcache_page call to those page
cache users that actually need it.
Reported-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Dhananjay Phadke [Mon, 9 Feb 2009 03:20:19 +0000 (19:20 -0800)]
netxen: fix msi-x interrupt handling
o Cut down msi-x vectors from 8 to 1 since only one is used for now.
o Use separate handler for msi-x, that doesn't unnecessarily scrub
msi status register.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Risto Suominen [Mon, 9 Feb 2009 01:50:34 +0000 (17:50 -0800)]
de2104x: force correct order when writing to rx ring
DescOwn should not be set, thus allowing the chip to use the
descriptor, before everything else is set up correctly.
Signed-off-by: Risto Suominen <Risto.Suominen@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alex Williamson [Mon, 9 Feb 2009 01:49:17 +0000 (17:49 -0800)]
tun: Fix unicast filter overflow
Tap devices can make use of a small MAC filter set via the
TUNSETTXFILTER ioctl. The filter has a set of exact matches
plus a hash for imperfect filtering of additional multicast
addresses. The current code is unbalanced, adding unicast
addresses to the multicast hash, but only checking the hash
against multicast addresses. This results in the filter
dropping unicast addresses that overflow the exact filter.
The fix is simply to disable the filter by leaving count set
to zero if we find non-multicast addresses after the exact
match table is filled.
Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Julia Lawall [Mon, 9 Feb 2009 01:00:49 +0000 (17:00 -0800)]
drivers/isdn: introduce missing kfree
Error handling code following a kmalloc should free the allocated data.
The semantic match that finds the problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@r exists@
local idexpression x;
statement S;
expression E;
identifier f,l;
position p1,p2;
expression *ptr != NULL;
@@
(
if ((x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...)) == NULL) S
|
x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
)
<... when != x
when != if (...) { <+...x...+> }
x->f = E
...>
(
return \(0\|<+...x...+>\|ptr\);
|
return@p2 ...;
)
@script:python@
p1 << r.p1;
p2 << r.p2;
@@
print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Julia Lawall [Mon, 9 Feb 2009 01:00:02 +0000 (17:00 -0800)]
drivers/atm: introduce missing kfree
Error handling code following a kmalloc should free the allocated data.
The semantic match that finds the problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@r exists@
local idexpression x;
statement S;
expression E;
identifier f,l;
position p1,p2;
expression *ptr != NULL;
@@
(
if ((x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...)) == NULL) S
|
x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
)
<... when != x
when != if (...) { <+...x...+> }
x->f = E
...>
(
return \(0\|<+...x...+>\|ptr\);
|
return@p2 ...;
)
@script:python@
p1 << r.p1;
p2 << r.p2;
@@
print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Hugh Dickins [Sun, 8 Feb 2009 20:56:58 +0000 (20:56 +0000)]
mm: fix error case in mlock downgrade reversion
Commit
27421e211a39784694b597dbf35848b88363c248, Manually revert
"mlock: downgrade mmap sem while populating mlocked regions", has
introduced its own regression: __mlock_vma_pages_range() may report
an error (for example, -EFAULT from trying to lock down pages from
beyond EOF), but mlock_vma_pages_range() must hide that from its
callers as before.
Reported-by: Sami Farin <safari-kernel@safari.iki.fi>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 8 Feb 2009 20:37:20 +0000 (12:37 -0800)]
Linux 2.6.29-rc4
Linus Torvalds [Sun, 8 Feb 2009 20:35:26 +0000 (12:35 -0800)]
Merge git://git./linux/kernel/git/arjan/linux-2.6-async-update
* git://git.kernel.org/pub/scm/linux/kernel/git/arjan/linux-2.6-async-update:
async: use list_move_tail
async: Rename _special -> _domain for clarity.
async: Add some documentation.
async: Handle kthread_run() return codes.
async: Fix running list handling.
Benjamin Herrenschmidt [Thu, 5 Feb 2009 01:06:52 +0000 (12:06 +1100)]
radeonfb: Fix resume from D3Cold on some platforms
For historical reason, this driver used its own saving/restoring
of the PCI config space, and used the state of it on resume as
an indication as to whether it needed to re-POST the chip or not.
This methods breaks with the later core changes since the core will
have restored things for us.
This patch fixes it by removing that custom code, using standard
core methods to save/restore state, and testing for the need to
re-POST by comparing the content of a few key PLL registers.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Benjamin Herrenschmidt [Thu, 5 Feb 2009 01:06:51 +0000 (12:06 +1100)]
aty128fb: Properly save PCI state before changing PCI PM level
This fixes aty128fb to properly save the PCI config space -before- it
potentially switches the PM state of the chip. This avoids a
warning with the new PM core and is the right thing to do anyway.
I also replaced the hand-coded switch to D2 with a call to the
genericc pci_set_power_state() and removed the code that switches it
back to D0 since the generic code is doing that for us nowadays.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Benjamin Herrenschmidt [Thu, 5 Feb 2009 01:06:50 +0000 (12:06 +1100)]
atyfb: Properly save PCI state before changing PCI PM level
This fixes atyfb to properly save the PCI config space -before- it
potentially switches the PM state of the chip. This avoids a
warning with the new PM core and is the right thing to do anyway.
I also slightly cleaned up the code that checks whether we are
running on a PowerMac to do a runtime check instead of a compile
check only, and replaced a deprecated number with the proper
symbolic constant.
Finally, I removed the useless switch to D0 from resume since
the core does it for us.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Stefan Richter [Mon, 2 Feb 2009 12:24:34 +0000 (13:24 +0100)]
async: use list_move_tail
list.h provides a dedicated primitive for
"list_del followed by list_add_tail"... list_move_tail.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Cornelia Huck [Tue, 20 Jan 2009 14:31:31 +0000 (15:31 +0100)]
async: Rename _special -> _domain for clarity.
Rename the async_*_special() functions to async_*_domain(), which
describes the purpose of these functions much better.
[Broke up long lines to silence checkpatch]
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cornelia Huck [Mon, 19 Jan 2009 12:45:33 +0000 (13:45 +0100)]
async: Add some documentation.
Add some kerneldoc to the async interface.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cornelia Huck [Mon, 19 Jan 2009 12:45:31 +0000 (13:45 +0100)]
async: Handle kthread_run() return codes.
If we fail to create the manager thread, fall back to non-fastboot.
If we fail to create an async thread, try again after waiting for
a bit.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cornelia Huck [Mon, 19 Jan 2009 12:45:28 +0000 (13:45 +0100)]
async: Fix running list handling.
async_schedule() should pass in async_running as the running
list, and run_one_entry() should put the entry to be run on
the provided running list instead of always on the generic one.
Reported-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Ingo Molnar [Thu, 5 Feb 2009 15:03:34 +0000 (16:03 +0100)]
drm/i915: select framebuffer support automatically
Migration helper.
The i915 driver recently added a 'depends on FB' rule to its
Kconfig entry - which silently turns off DRM_I915 if someone
has a working config but no CONFIG_FB selected, and upgrades
to the latest upstream kernel.
Norbert Preining reported this problem:
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12599
Subject : dri /dev node disappeared with 2.6.29-rc1
So change it to "select FB", which auto-selects framebuffer
support. This way the driver keeps working, regardless of
whether FB was enabled before or not.
Kconfig select's of interactive options can be problematic to
dependencies and can cause build breakages - but in this case
it's safe because it's a leaf entry with no dependencies of its
own.
( There is some minor circular dependency fallout as FB_I810
and FB_INTEL also used 'depends on FB' constructs - update
those to "select FB" too. )
Reported-by: Norbert Preining <preining@logic.at>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Jesse Barnes [Fri, 6 Feb 2009 18:22:41 +0000 (10:22 -0800)]
drm/i915: add get_vblank_counter function for GM45
As discussed in the long thread about vblank related timeouts, it turns out
GM45 has different frame count registers than previous chips. This patch
adds support for them, which prevents us from waiting on really stale
sequence values in drm_wait_vblank (which rather than returning immediately
ends up timing out or getting interrupted).
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Jesse Barnes [Fri, 6 Feb 2009 21:04:49 +0000 (13:04 -0800)]
drm/i915: capture last_vblank count at IRQ uninstall time too
In
dc1336ff4fe08ae7cfe8301bfd7f0b2cfd31d20a (set vblank enable flag correctly
across IRQ uninstall), we made sure drivers that uninstall their interrupt
handler set the vblank enabled flag correctly, so that when interrupts are
re-enabled, vblank interrupts & counts work as expected. However I missed the
last_vblank field: it needs to be updated as well, otherwise, at the next
drm_update_vblank_count we'll end up comparing a current count to a stale
one (the last one captured by the disable function), which may trigger the
wraparound handling, leading to a jumpy counter and hangs in drm_wait_vblank.
The jumpy counter can prevent the DRM_WAIT_ON from returning success if the
difference between the current count and the requested count is greater than
2^23, leading to timeouts or hangs, if the ioctl is restarted in a loop (as
is the case in libdrm < 2.4.4).
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Acked-by: Michel Dänzer <michel@daenzer.net>
Tested-by: Timo Aaltonen <tjaalton@cc.hut.fi>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Chris Wilson [Wed, 4 Feb 2009 14:15:10 +0000 (14:15 +0000)]
drm/i915: Unlock mutex on i915_gem_fault() error path
If we failed to allocate a new fence register we would return
VM_FAULT_SIGBUS without relinquishing the lock.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Eric Anholt [Tue, 3 Feb 2009 20:10:21 +0000 (12:10 -0800)]
drm/i915: Quiet the message on get/setparam ioctl with an unknown value.
Getting an unknown get/setparam used to be more significant back when they
didn't change much. However, now that we're in the git world we're using
them instead of a monotonic version number to signal feature availability,
so clients ask about unknown params on older kernels more often.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Paul Collins [Wed, 4 Feb 2009 10:05:41 +0000 (23:05 +1300)]
drm/i915: skip LVDS initialization on Apple Mac Mini
The Apple Mac Mini falsely reports LVDS. Use DMI to check whether we
are running on a Mac Mini, and skip LVDS initialization if that proves
to be the case.
Signed-off-by: Paul Collins <paul@ondioline.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Jesse Barnes [Mon, 2 Feb 2009 23:11:52 +0000 (15:11 -0800)]
drm/i915: sync SDVO code with stable userland modesetting driver
Pull in an update from the 2D driver (hopefully the last one, future work
should be done here and pulled back into xf86-video-intel as needed).
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Chris Wilson [Fri, 30 Jan 2009 21:10:22 +0000 (21:10 +0000)]
drm/i915: Unref the object after failing to set tiling mode.
Cleanup the object reference on the error paths.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Jesse Barnes [Tue, 27 Jan 2009 01:10:45 +0000 (17:10 -0800)]
drm/i915: add fence register management to execbuf
Adds code to set up fence registers at execbuf time on pre-965 chips as
necessary. Also fixes up a few bugs in the pre-965 tile register support
(get_order != ffs). The number of fences available to the kernel defaults
to the hw limit minus 3 (for legacy X front/back/depth), but a new parameter
allows userspace to override that as needed.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Eric Anholt [Tue, 27 Jan 2009 18:33:49 +0000 (10:33 -0800)]
drm/i915: Return error from i915_gem_object_get_fence_reg() when failing.
Previously, the caller would continue along without knowing that the
function failed, resulting in potential mis-rendering. Right now vm_fault
just returns SIGBUS in that case, and we may need to disable signal handling
to avoid that happening.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Eric Anholt [Fri, 23 Jan 2009 20:57:47 +0000 (12:57 -0800)]
drm/i915: Set up an MTRR covering the GTT at driver load.
We'd love to just be using PAT, but even on chips with PAT it gets disabled
sometimes due to an errata. It would probably be better to have pat_enabled
exported and only bother with this when !pat_enabled.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Eric Anholt [Thu, 22 Jan 2009 21:01:02 +0000 (13:01 -0800)]
drm/i915: Skip SDVO/HDMI init when the chipset tells us it's not present.
This saves startup time from probing SDVO, and saves setting up HDMI outputs
on G4X devices that don't have them.
Signed-off-by: Dave Airlie <airlied@linux.ie>
Eric Anholt [Thu, 22 Jan 2009 17:56:58 +0000 (09:56 -0800)]
drm/i915: Suppress GEM teardown on X Server exit in KMS mode.
Fixes hangs when starting X for the second time.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Dave Airlie [Sat, 7 Feb 2009 01:15:41 +0000 (11:15 +1000)]
drm/radeon: fix ioremap conflict with AGP mappings
this solves a regression from
http://bugzilla.kernel.org/show_bug.cgi?id=12441
Reported-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / log