Wei Yongjun [Sat, 2 Jul 2011 09:28:04 +0000 (09:28 +0000)]
sctp: fix missing send up SCTP_SENDER_DRY_EVENT when subscribe it
We forgot to send up SCTP_SENDER_DRY_EVENT notification when
user app subscribes to this event, and there is no data to be
sent or retransmit.
This is required by the Socket API and used by the DTLS/SCTP
implementation.
Reported-by: Michael Tüxen <Michael.Tuexen@lurchi.franken.de>
Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Tested-by: Robin Seggelmann <seggelmann@fh-muenster.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Thu, 7 Jul 2011 07:27:05 +0000 (00:27 -0700)]
net: refine {udp|tcp|sctp}_mem limits
Current tcp/udp/sctp global memory limits are not taking into account
hugepages allocations, and allow 50% of ram to be used by buffers of a
single protocol [ not counting space used by sockets / inodes ...]
Lets use nr_free_buffer_pages() and allow a default of 1/8 of kernel ram
per protocol, and a minimum of 128 pages.
Heavy duty machines sysadmins probably need to tweak limits anyway.
References: https://bugzilla.stlinux.com/show_bug.cgi?id=38032
Reported-by: starlight <starlight@binnacle.cx>
Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Shreyas Bhatewara [Thu, 7 Jul 2011 07:25:52 +0000 (00:25 -0700)]
vmxnet3: round down # of queues to power of two
vmxnet3 device supports only power-of-two number of queues. The driver
therefore needs to check this and rounds down the number of queues to the
nearest power of two.
Signed-off-by: Yong Wang <yongwang@vmware.com>
Signed-off-by: Shreyas N Bhatewara <sbhatewara@vmware.com>
Reviewed-by: Dmitry Torokhov <dtor@vmware.com>
Yoshihiro Shimoda [Tue, 5 Jul 2011 20:33:57 +0000 (20:33 +0000)]
net: sh_eth: fix the parameter for the ETHER of SH7757
If the driver didn't set this parameter on the ETHER, the CPU will
encounter the "data address error" exception.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yoshihiro Shimoda [Tue, 5 Jul 2011 20:33:51 +0000 (20:33 +0000)]
net: sh_eth: fix cannot work half-duplex mode
When link was down, the bit of DM in ECMR was always set.
So, we could not use half-duplex mode on the controller.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Shan Wei [Wed, 6 Jul 2011 03:43:12 +0000 (20:43 -0700)]
net: vlan: enable soft features regardless of underlying device
If gso/gro feature of underlying device is turned off,
then new created vlan device never can turn gso/gro on.
Although underlying device don't support TSO, we still
should use software segments for vlan device.
Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Shreyas Bhatewara [Tue, 5 Jul 2011 14:34:05 +0000 (14:34 +0000)]
vmxnet3: fix starving rx ring whenoc_skb kb fails
If the rx ring is completely empty, then the device may never fire an rx
interrupt. Unfortunately, the rx interrupt is what triggers populating the
rx ring with fresh buffers, so this will cause networking to lock up.
This patch replenishes the skb in recv descriptor as soon as it is
peeled off while processing rx completions. If the skb/buffer
allocation fails, existing one is recycled and the packet in hand is
dropped. This way none of the RX desc is ever left empty, thus avoiding
starvation
Signed-off-by: Scott J. Goldman <scottjg@vmware.com>
Signed-off-by: Shreyas N Bhatewara <sbhatewara@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Herbert Xu [Tue, 5 Jul 2011 13:58:33 +0000 (13:58 +0000)]
bridge: Always flood broadcast packets
As is_multicast_ether_addr returns true on broadcast packets as
well, we need to explicitly exclude broadcast packets so that
they're always flooded. This wasn't an issue before as broadcast
packets were considered to be an unregistered multicast group,
which were always flooded. However, as we now only flood such
packets to router ports, this is no longer acceptable.
Reported-by: Michael Guntsche <mike@it-loops.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Kristoffer Glembo [Tue, 5 Jul 2011 04:39:10 +0000 (21:39 -0700)]
greth: greth_set_mac_add would corrupt the MAC address.
The MAC address was set using the signed char sockaddr->sa_addr
field and thus the address could be corrupted through sign extension.
Signed-off-by: Kristoffer Glembo <kristoffer@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Marcus Meissner [Mon, 4 Jul 2011 01:30:29 +0000 (01:30 +0000)]
net: bind() fix error return on wrong address family
Hi,
Reinhard Max also pointed out that the error should EAFNOSUPPORT according
to POSIX.
The Linux manpages have it as EINVAL, some other OSes (Minix, HPUX, perhaps BSD) use
EAFNOSUPPORT. Windows uses WSAEFAULT according to MSDN.
Other protocols error values in their af bind() methods in current mainline git as far
as a brief look shows:
EAFNOSUPPORT: atm, appletalk, l2tp, llc, phonet, rxrpc
EINVAL: ax25, bluetooth, decnet, econet, ieee802154, iucv, netlink, netrom, packet, rds, rose, unix, x25,
No check?: can/raw, ipv6/raw, irda, l2tp/l2tp_ip
Ciao, Marcus
Signed-off-by: Marcus Meissner <meissner@suse.de>
Cc: Reinhard Max <max@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
FUJITA Tomonori [Mon, 4 Jul 2011 05:34:29 +0000 (22:34 -0700)]
natsemi: silence dma-debug warnings
This silences dma-debug warnings:
https://lkml.org/lkml/2011/6/30/341
------------[ cut here ]------------
WARNING: at /home/jimc/projects/lx/linux-2.6/lib/dma-debug.c:820
check_unmap+0x1fe/0x56a()
natsemi 0000:00:06.0: DMA-API: device driver frees DMA memory with
different size [device address=0x0000000006ef0040] [map size=1538
bytes] [unmap size=1522 bytes]
Modules linked in: pc8736x_gpio pc87360 hwmon_vid scx200_gpio nsc_gpio
scx200_hrt scx200_acb i2c_core arc4 rtl8180 mac80211 eeprom_93cx6
cfg80211 pcspkr rfkill scx200 ide_gd_mod ide_pci_generic ohci_hcd
usbcore sc1200 ide_core
Pid: 870, comm: collector Not tainted
3.0.0-rc5-sk-00080-gca56a95 #1
Call Trace:
[<
c011a556>] warn_slowpath_common+0x4a/0x5f
[<
c02565cb>] ? check_unmap+0x1fe/0x56a
[<
c011a5cf>] warn_slowpath_fmt+0x26/0x2a
[<
c02565cb>] check_unmap+0x1fe/0x56a
[<
c0256aaa>] debug_dma_unmap_page+0x53/0x5b
[<
c029d6cd>] pci_unmap_single+0x4d/0x57
[<
c029ea0a>] natsemi_poll+0x343/0x5ca
[<
c0116f41>] ? try_to_wake_up+0xea/0xfc
[<
c0122416>] ? spin_unlock_irq.clone.28+0x18/0x23
[<
c02d4667>] net_rx_action+0x3f/0xe5
[<
c011e35e>] __do_softirq+0x5b/0xd1
[<
c011e303>] ? local_bh_enable+0xa/0xa
<IRQ> [<
c011e54b>] ? irq_exit+0x34/0x75
[<
c01034b9>] ? do_IRQ+0x66/0x79
[<
c034e869>] ? common_interrupt+0x29/0x30
[<
c0115ed0>] ? finish_task_switch.clone.118+0x31/0x72
[<
c034cb92>] ? schedule+0x3b2/0x3f1
[<
c012f4b0>] ? hrtimer_start_range_ns+0x10/0x12
[<
c012f4ce>] ? hrtimer_start_expires+0x1c/0x24
[<
c034d5aa>] ? schedule_hrtimeout_range_clock+0x8e/0xb4
[<
c012ed27>] ? update_rmtp+0x68/0x68
[<
c034d5da>] ? schedule_hrtimeout_range+0xa/0xc
[<
c017a913>] ? poll_schedule_timeout+0x27/0x3e
[<
c017b051>] ? do_select+0x488/0x4cd
[<
c0115ee2>] ? finish_task_switch.clone.118+0x43/0x72
[<
c01157ad>] ? need_resched+0x14/0x1e
[<
c017a99e>] ? poll_freewait+0x74/0x74
[<
c01157ad>] ? need_resched+0x14/0x1e
[<
c034cbc1>] ? schedule+0x3e1/0x3f1
[<
c011e55e>] ? irq_exit+0x47/0x75
[<
c01157ad>] ? need_resched+0x14/0x1e
[<
c034cf8a>] ? preempt_schedule_irq+0x44/0x4a
[<
c034dd1e>] ? need_resched+0x17/0x19
[<
c024bc12>] ? put_dec_full+0x7b/0xaa
[<
c0240060>] ? blkdev_ioctl+0x434/0x618
[<
c024bc70>] ? put_dec+0x2f/0x6d
[<
c024c6a5>] ? number.clone.1+0x10b/0x1d0
[<
c034cf8a>] ? preempt_schedule_irq+0x44/0x4a
[<
c034dd1e>] ? need_resched+0x17/0x19
[<
c024d046>] ? vsnprintf+0x225/0x264
[<
c024cea0>] ? vsnprintf+0x7f/0x264
[<
c018346f>] ? seq_printf+0x22/0x40
[<
c01a2fcc>] ? do_task_stat+0x582/0x5a3
[<
c017a913>] ? poll_schedule_timeout+0x27/0x3e
[<
c017b1b5>] ? core_sys_select+0x11f/0x1a3
[<
c017a913>] ? poll_schedule_timeout+0x27/0x3e
[<
c01a34a1>] ? proc_tgid_stat+0xd/0xf
[<
c012357c>] ? recalc_sigpending+0x32/0x35
[<
c0123b9c>] ? __set_task_blocked+0x64/0x6a
[<
c011dfb0>] ? timespec_add_safe+0x24/0x48
[<
c0123449>] ? spin_unlock_irq.clone.16+0x18/0x23
[<
c017b3a1>] ? sys_pselect6+0xe5/0x13e
[<
c034dd65>] ? syscall_call+0x7/0xb
[<
c0340000>] ? rpc_clntdir_depopulate+0x26/0x30
---[ end trace
180dcac41a50938b ]---
Reported-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Tested-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Shan Wei [Fri, 1 Jul 2011 22:06:44 +0000 (22:06 +0000)]
net: 8139too: Initial necessary vlan_features to support vlan
Offload setting of vlan device requires
vlan_features to be initialized.
Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com>
Acked-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Shyam Iyer [Tue, 28 Jun 2011 08:58:05 +0000 (08:58 +0000)]
Fix call trace when interrupts are disabled while sleeping function kzalloc is called
request_threaded irq will call kzalloc that can sleep. Initializing the flags variable outside of spin_lock_irqsave/restore in bnad_mbox_irq_alloc will avoid call traces like below.
Jun 27 08:15:24 home-t710 kernel: [11735.634550] Brocade 10G Ethernet driver
Jun 27 08:15:24 home-t710 kernel: [11735.634590] bnad_pci_probe : (0xffff880427f3d000, 0xffffffffa020f3e0) PCI Func : (2)
Jun 27 08:15:24 home-t710 kernel: [11735.637677] bna 0000:82:00.2: PCI INT A -> GSI 66 (level, low) -> IRQ 66
Jun 27 08:15:24 home-t710 kernel: [11735.638290] bar0 mapped to
ffffc90014980000, len 262144
Jun 27 08:15:24 home-t710 kernel: [11735.638732] BUG: sleeping function called from invalid context at mm/slub.c:847
Jun 27 08:15:24 home-t710 kernel: [11735.638736] in_atomic(): 0, irqs_disabled(): 1, pid: 11243, name: insmod
Jun 27 08:15:24 home-t710 kernel: [11735.638740] Pid: 11243, comm: insmod Not tainted 3.0.0-rc4+ #6
Jun 27 08:15:24 home-t710 kernel: [11735.638743] Call Trace:
Jun 27 08:15:24 home-t710 kernel: [11735.638755] [<
ffffffff81046427>] __might_sleep+0xeb/0xf0
Jun 27 08:15:24 home-t710 kernel: [11735.638766] [<
ffffffffa01fe469>] ? netif_wake_queue+0x3d/0x3d [bna]
Jun 27 08:15:24 home-t710 kernel: [11735.638773] [<
ffffffff8111201c>] kmem_cache_alloc_trace+0x43/0xd8
Jun 27 08:15:24 home-t710 kernel: [11735.638782] [<
ffffffffa01fe469>] ? netif_wake_queue+0x3d/0x3d [bna]
Jun 27 08:15:24 home-t710 kernel: [11735.638787] [<
ffffffff810ab791>] request_threaded_irq+0xa1/0x113
Jun 27 08:15:24 home-t710 kernel: [11735.638798] [<
ffffffffa020f0c0>] bnad_pci_probe+0x612/0x8e5 [bna]
Jun 27 08:15:24 home-t710 kernel: [11735.638807] [<
ffffffffa01fe469>] ? netif_wake_queue+0x3d/0x3d [bna]
Jun 27 08:15:24 home-t710 kernel: [11735.638816] [<
ffffffff81482ef4>] ? _raw_spin_unlock_irqrestore+0x17/0x19
Jun 27 08:15:24 home-t710 kernel: [11735.638822] [<
ffffffff8124d17a>] local_pci_probe+0x44/0x75
Jun 27 08:15:24 home-t710 kernel: [11735.638826] [<
ffffffff8124dc06>] pci_device_probe+0xd0/0xff
Jun 27 08:15:24 home-t710 kernel: [11735.638832] [<
ffffffff812ef8ab>] driver_probe_device+0x131/0x213
Jun 27 08:15:24 home-t710 kernel: [11735.638836] [<
ffffffff812ef9e7>] __driver_attach+0x5a/0x7e
Jun 27 08:15:24 home-t710 kernel: [11735.638840] [<
ffffffff812ef98d>] ? driver_probe_device+0x213/0x213
Jun 27 08:15:24 home-t710 kernel: [11735.638844] [<
ffffffff812ee933>] bus_for_each_dev+0x53/0x89
Jun 27 08:15:24 home-t710 kernel: [11735.638848] [<
ffffffff812ef48a>] driver_attach+0x1e/0x20
Jun 27 08:15:24 home-t710 kernel: [11735.638852] [<
ffffffff812ef0ae>] bus_add_driver+0xd1/0x224
Jun 27 08:15:24 home-t710 kernel: [11735.638858] [<
ffffffffa01b8000>] ? 0xffffffffa01b7fff
Jun 27 08:15:24 home-t710 kernel: [11735.638862] [<
ffffffff812efe57>] driver_register+0x98/0x105
Jun 27 08:15:24 home-t710 kernel: [11735.638866] [<
ffffffffa01b8000>] ? 0xffffffffa01b7fff
Jun 27 08:15:24 home-t710 kernel: [11735.638871] [<
ffffffff8124e4c9>] __pci_register_driver+0x56/0xc1
Jun 27 08:15:24 home-t710 kernel: [11735.638875] [<
ffffffffa01b8000>] ? 0xffffffffa01b7fff
Jun 27 08:15:24 home-t710 kernel: [11735.638884] [<
ffffffffa01b8040>] bnad_module_init+0x40/0x60 [bna]
Jun 27 08:15:24 home-t710 kernel: [11735.638892] [<
ffffffff81002099>] do_one_initcall+0x7f/0x136
Jun 27 08:15:24 home-t710 kernel: [11735.638899] [<
ffffffff8108608b>] sys_init_module+0x88/0x1d0
Jun 27 08:15:24 home-t710 kernel: [11735.638906] [<
ffffffff81489682>] system_call_fastpath+0x16/0x1b
Jun 27 08:15:24 home-t710 kernel: [11735.639642] bnad_pci_probe : (0xffff880427f3e000, 0xffffffffa020f3e0) PCI Func : (3)
Jun 27 08:15:24 home-t710 kernel: [11735.639665] bna 0000:82:00.3: PCI INT A -> GSI 66 (level, low) -> IRQ 66
Jun 27 08:15:24 home-t710 kernel: [11735.639735] bar0 mapped to
ffffc90014400000, len 262144
Signed-off-by: Shyam Iyer <shyam_iyer@dell.com>
Acked-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jitendra Kalsaria [Thu, 30 Jun 2011 10:02:07 +0000 (10:02 +0000)]
qlge:Version change to v1.00.00.29
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jitendra Kalsaria [Thu, 30 Jun 2011 10:02:06 +0000 (10:02 +0000)]
qlge: Fix printk priority so chip fatal errors are always reported.
Precedence of the printk should be at higher level so chip fatal
errors are always reported.
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jitendra Kalsaria [Thu, 30 Jun 2011 10:02:05 +0000 (10:02 +0000)]
qlge:Fix crash caused by mailbox execution on wedged chip.
When we are in a recover process from a chip fatal error,
driver should skip over execution of mailbox commands during
resetting chip.
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steffen Klassert [Wed, 29 Jun 2011 23:20:41 +0000 (23:20 +0000)]
xfrm4: Don't call icmp_send on local error
Calling icmp_send() on a local message size error leads to
an incorrect update of the path mtu. So use ip_local_error()
instead to notify the socket about the error.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steffen Klassert [Wed, 29 Jun 2011 23:19:32 +0000 (23:19 +0000)]
ipv4: Don't use ufo handling on later transformed packets
We might call ip_ufo_append_data() for packets that will be IPsec
transformed later. This function should be used just for real
udp packets. So we check for rt->dst.header_len which is only
nonzero on IPsec handling and call ip_ufo_append_data() just
if rt->dst.header_len is zero.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steffen Klassert [Wed, 29 Jun 2011 23:18:20 +0000 (23:18 +0000)]
xfrm: Remove family arg from xfrm_bundle_ok
The family arg is not used any more, so remove it.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 24 Jun 2011 22:25:00 +0000 (15:25 -0700)]
ipv6: Don't put artificial limit on routing table size.
IPV6, unlike IPV4, doesn't have a routing cache.
Routing table entries, as well as clones made in response
to route lookup requests, all live in the same table. And
all of these things are together collected in the destination
cache table for ipv6.
This means that routing table entries count against the garbage
collection limits, even though such entries cannot ever be reclaimed
and are added explicitly by the administrator (rather than being
created in response to lookups).
Therefore it makes no sense to count ipv6 routing table entries
against the GC limits.
Add a DST_NOCOUNT destination cache entry flag, and skip the counting
if it is set. Use this flag bit in ipv6 when adding routing table
entries.
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 24 Jun 2011 22:23:34 +0000 (15:23 -0700)]
ipv6: Don't change dst->flags using assignments.
This blows away any flags already set in the entry.
Signed-off-by: David S. Miller <davem@davemloft.net>
Arnd Bergmann [Sat, 2 Jul 2011 00:30:00 +0000 (17:30 -0700)]
6pack,mkiss: fix lock inconsistency
Lockdep found a locking inconsistency in the mkiss_close function:
> kernel: [ INFO: inconsistent lock state ]
> kernel: 2.6.39.1 #3
> kernel: ---------------------------------
> kernel: inconsistent {IN-SOFTIRQ-R} -> {SOFTIRQ-ON-W} usage.
> kernel: ax25ipd/2813 [HC0[0]:SC0[0]:HE1:SE1] takes:
> kernel: (disc_data_lock){+++?.-}, at: [<
ffffffffa018552b>] mkiss_close+0x1b/0x90 [mkiss]
> kernel: {IN-SOFTIRQ-R} state was registered at:
The message hints that disc_data_lock is aquired with softirqs disabled,
but does not itself disable softirqs, which can in rare circumstances
lead to a deadlock.
The same problem is present in the 6pack driver, this patch fixes both
by using write_lock_bh instead of write_lock.
Reported-by: Bernard F6BVP <f6bvp@free.fr>
Tested-by: Bernard F6BVP <f6bvp@free.fr>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Ralf Baechle<ralf@linux-mips.org>
Cc: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 1 Jul 2011 08:52:02 +0000 (01:52 -0700)]
Merge branch 'for-davem' of git://git./linux/kernel/git/linville/wireless-2.6
Linus Torvalds [Thu, 30 Jun 2011 17:44:52 +0000 (10:44 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (24 commits)
usbnet: Remove over-broad module alias from zaurus.
MAINTAINERS: drop Michael from bfin_mac driver
net/can: activate bit-timing calculation and netlink based drivers by default
rionet: fix NULL pointer dereference in rionet_remove
net+crypto: Use vmalloc for zlib inflate buffers.
netfilter: Fix ip_route_me_harder triggering ip_rt_bug
ipv4: Fix IPsec slowpath fragmentation problem
ipv4: Fix packet size calculation in __ip_append_data
cxgb3: skb_record_rx_queue now records the queue index relative to the net_device.
bridge: Only flood unregistered groups to routers
qlge: Add maintainer.
MAINTAINERS: mark socketcan-core lists as subscribers-only
MAINTAINERS: Remove Sven Eckelmann from BATMAN ADVANCED
r8169: fix wrong register use.
net/usb/kalmia: signedness bug in kalmia_bind()
net/usb: kalmia: Various fixes for better support of non-x86 architectures.
rtl8192cu: Fix missing firmware load
udp/recvmsg: Clear MSG_TRUNC flag when starting over for a new packet
ipv6/udp: Use the correct variable to determine non-blocking condition
netconsole: fix build when CONFIG_NETCONSOLE_DYNAMIC is turned on
...
Linus Torvalds [Thu, 30 Jun 2011 17:44:13 +0000 (10:44 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/egtvedt/avr32-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/avr32-2.6:
MAINTAINERS: update AVR32 and AT32AP maintainers
Linus Torvalds [Thu, 30 Jun 2011 17:43:57 +0000 (10:43 -0700)]
Merge git://git./linux/kernel/git/wim/linux-2.6-watchdog
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
watchdog: update author email for at32ap700x_wdt
watchdog: gef_wdt: fix MODULE_ALIAS
watchdog: Intel SCU Watchdog: Fix build and remove duplicate code
watchdog: mtx1-wdt: fix section mismatch
watchdog: mtx1-wdt: fix GPIO toggling
watchdog: mtx1-wdt: request gpio before using it
watchdog: Handle multiple wm831x watchdogs being registered
Linus Torvalds [Thu, 30 Jun 2011 17:43:22 +0000 (10:43 -0700)]
Merge branch 'sh-fixes-for-linus' of git://git./linux/kernel/git/lethal/sh-3.x
* 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x:
sh: use printk_ratelimited instead of printk_ratelimit
sh: Fix up unmet dependency warnings with USB EHCI/OHCI selects.
sh: fix the value of sh_dmae_slave_config in setup-sh7757
sh: fix the INTC vector for IRQ and IRL in setup-sh7757
sh: add to select the new configuration for USB EHCI/OHCI
sh: add platform_device of EHCI/OHCI to setup-sh7757
sh: fix compile error using sh7757lcr_defconfig
Linus Torvalds [Thu, 30 Jun 2011 17:43:04 +0000 (10:43 -0700)]
Merge branch 'rmobile-fixes-for-linus' of git://git./linux/kernel/git/lethal/sh-3.x
* 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x:
ARM: mach-shmobile: make a struct in board-ap4evb.c static
ARM: mach-shmobile: ag5evm: consistently name sdhi info structures
ARM: mach-shmobile: mackerel: change usbhs devices order
John W. Linville [Thu, 30 Jun 2011 15:26:04 +0000 (11:26 -0400)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless-2.6 into for-davem
Hans-Christian Egtvedt [Tue, 28 Jun 2011 06:43:29 +0000 (08:43 +0200)]
MAINTAINERS: update AVR32 and AT32AP maintainers
This alters the maintenance of the AVR32 architecture and the AT32AP machine
code to be shared between Haavard Skinnemoen and me. The status is also changed
to maintained, as we no longer are being paid to look after this architecture.
Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
Acked-by: Haavard Skinnemoen <hskinnemoen@gmail.com>
Paul Mundt [Thu, 30 Jun 2011 06:10:06 +0000 (15:10 +0900)]
sh: use printk_ratelimited instead of printk_ratelimit
Follows the powerpc change, for much the same rationale.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Paul Mundt [Thu, 30 Jun 2011 06:04:38 +0000 (15:04 +0900)]
sh: Fix up unmet dependency warnings with USB EHCI/OHCI selects.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Guennadi Liakhovetski [Wed, 29 Jun 2011 10:13:04 +0000 (10:13 +0000)]
ARM: mach-shmobile: make a struct in board-ap4evb.c static
struct soc_camera_link imx074_link in board-ap4evb.c doesn't have
to be global.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Linus Torvalds [Thu, 30 Jun 2011 01:18:48 +0000 (18:18 -0700)]
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/radeon/kms: increase rom size for atrm method
Linus Torvalds [Thu, 30 Jun 2011 01:10:54 +0000 (18:10 -0700)]
Merge git://git./linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: caam - fix operator precedence in shared descriptor allocation
Alex Deucher [Fri, 24 Jun 2011 13:15:38 +0000 (13:15 +0000)]
drm/radeon/kms: increase rom size for atrm method
The vbios rom is >64k on a lot of modern asics. Increase
the fetch size for atrm to make sure we don't miss part
of a larger rom.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Kim Phillips [Thu, 26 May 2011 03:30:34 +0000 (13:30 +1000)]
crypto: caam - fix operator precedence in shared descriptor allocation
setkey allocates 16 bytes (CAAM_CMD_SZ *
DESC_AEAD_SHARED_TEXT_LEN) shy of what is needed to
store the shared descriptor, resulting in memory
corruption. Fix this.
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Eugene A. Shatokhin [Wed, 29 Jun 2011 03:04:51 +0000 (23:04 -0400)]
ath5k: fix memory leak when fewer than N_PD_CURVES are in use
We would free the proper number of curves, but in the wrong
slots, due to a missing level of indirection through
the pdgain_idx table.
It's simpler just to try to free all four slots, so do that.
Cc: stable@kernel.org
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Rajkumar Manoharan [Tue, 28 Jun 2011 12:51:19 +0000 (18:21 +0530)]
ath9k: Fix suspend/resume when no interface is UP
When no interface has been brought up, the chip's power
state continued as AWAKE. So during resume, the chip never
been powered up.
Cc: stable@kernel.org
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Linus Torvalds [Wed, 29 Jun 2011 18:07:20 +0000 (11:07 -0700)]
Merge branch 'kvm-updates/3.0' of git://git./virt/kvm/kvm
* 'kvm-updates/3.0' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86 emulator: fix %rip-relative addressing with immediate source operand
Linus Torvalds [Wed, 29 Jun 2011 18:07:02 +0000 (11:07 -0700)]
Merge branch 'i2c-for-linus' of git://git./linux/kernel/git/jdelvare/staging
* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
i2c/pca954x: Initialize the mux to disconnected state
i2c-taos-evm: Fix log messages
Linus Torvalds [Wed, 29 Jun 2011 18:03:27 +0000 (11:03 -0700)]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
arch/powerpc: use printk_ratelimited instead of printk_ratelimit
powerpc/rtas-rtc: remove sideeffects of printk_ratelimit
powerpc/pseries: remove duplicate SCSI_BNX2_ISCSI in pseries_defconfig
powerpc/e500: fix breakage with fsl_rio_mcheck_exception
powerpc/p1022ds: fix audio-related properties in the device tree
powerpc/85xx: fix NAND_CMD_READID read bytes number
Linus Torvalds [Wed, 29 Jun 2011 17:10:07 +0000 (10:10 -0700)]
ahci: change 'masking port_map' printk to KERN_WARNING level
It's not so much an error as a warning about normal Marvell crazines.
So don't use KERN_ERR that ends up spamming the console even in quiet
mode, it's not _that_ critical.
Explained by Jeff:
"Long explanation, it's a mess:
Marvell took standard AHCI, and bastardized it to include a weird mode
whereby PATA devices appear inside the AHCI DMA and interrupt
infrastructure you're familiar with.
So, PATA devices appear via pata_marvell driver, using basic legacy
IDE programming interface. But SATA devices, which might also be
attached to this chip, either work in under-performing mode or
simply don't work at all (e.g. newer 6 Gbps devices or port
multiplier attachments, NCQ, ...)
On the other hand, 'ahci' driver loads and works with the chip's
attached SATA devices quite beautifully, but is completely unable to
drive any attached PATA devices, due to the Marvell-specific
PATA-under-AHCI interface.
The "masking port_map 0x7 -> 0x3" message is the ahci driver "hiding"
the PATA port(s) from itself, making sure it will only drive the SATA
ports it knows how to drive."
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Dave Jones [Sat, 18 Jun 2011 00:02:10 +0000 (20:02 -0400)]
usbnet: Remove over-broad module alias from zaurus.
This module and a bunch of dependancies are getting loaded on several
of laptops I have (probably picking up the mobile broadband device),
that have nothing to do with zaurus. Matching by class without
any vendor/device pair isn't the right thing to do here, as it
will prevent any other driver from correctly binding to it.
(Or in the absense of a driver, will just waste time & memory by
unnecessarily loading modules)
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mike Frysinger [Mon, 27 Jun 2011 08:24:07 +0000 (08:24 +0000)]
MAINTAINERS: drop Michael from bfin_mac driver
We want people to just use the list now rather than hitting up people
who are no longer responsible for it.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Marc Kleine-Budde [Sun, 26 Jun 2011 21:39:51 +0000 (21:39 +0000)]
net/can: activate bit-timing calculation and netlink based drivers by default
The two options "CAN bit-timing calculation" and
"Platform CAN drivers with Netlink support" have a "default Y". In order to
activate them by default, change to "default y".
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Acked-by: Kurt Van Dijck <kurt.van.dijck@eia.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yinglin Luan [Sat, 25 Jun 2011 18:12:12 +0000 (18:12 +0000)]
rionet: fix NULL pointer dereference in rionet_remove
Function rionet_remove initializes local variable 'ndev' to NULL
and do nothing changes before the call to unregister_netdev(ndev),
this could cause a NULL pointer dereference.
Reported-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Yinglin Luan <synmyth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 29 Jun 2011 12:48:41 +0000 (05:48 -0700)]
net+crypto: Use vmalloc for zlib inflate buffers.
They are 64K and result in order-4 allocations, even with SLUB.
Therefore, just like we always have for the deflate buffers, use
vmalloc.
Reported-by: Martin Jackson <mjackson220.list@gmail.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Julian Anastasov [Sat, 18 Jun 2011 07:53:59 +0000 (07:53 +0000)]
netfilter: Fix ip_route_me_harder triggering ip_rt_bug
Avoid creating input routes with ip_route_me_harder.
It does not work for locally generated packets. Instead,
restrict sockets to provide valid saddr for output route (or
unicast saddr for transparent proxy). For other traffic
allow saddr to be unicast or local but if callers forget
to check saddr type use 0 for the output route.
The resulting handling should be:
- REJECT TCP:
- in INPUT we can provide addr_type = RTN_LOCAL but
better allow rejecting traffic delivered with
local route (no IP address => use RTN_UNSPEC to
allow also RTN_UNICAST).
- FORWARD: RTN_UNSPEC => allow RTN_LOCAL/RTN_UNICAST
saddr, add fix to ignore RTN_BROADCAST and RTN_MULTICAST
- OUTPUT: RTN_UNSPEC
- NAT, mangle, ip_queue, nf_ip_reroute: RTN_UNSPEC in LOCAL_OUT
- IPVS:
- use RTN_LOCAL in LOCAL_OUT and FORWARD after SNAT
to restrict saddr to be local
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>
Petri Gynther [Wed, 29 Jun 2011 09:36:11 +0000 (11:36 +0200)]
i2c/pca954x: Initialize the mux to disconnected state
pca954x power-on default is channel 0 connected. If multiple pca954x
muxes are connected to the same physical I2C bus, the parent bus will
see channel 0 devices behind both muxes by default. This is bad.
Scenario:
-- pca954x @ 0x70 -- ch 0 (I2C-bus-101) -- EEPROM @ 0x50
|
I2C-bus-1 ---
|
-- pca954x @ 0x71 -- ch 0 (I2C-bus-111) -- EEPROM @ 0x50
1. Load I2C bus driver: creates I2C-bus-1
2. Load pca954x driver: creates virtual I2C-bus-101 and I2C-bus-111
3. Load eeprom driver
4. Try to read EEPROM @ 0x50 on I2C-bus-101. The transaction will also bleed
onto I2C-bus-111 because pca954x @ 0x71 channel 0 is connected by default.
Fix: Initialize pca954x to disconnected state in pca954x_probe()
Signed-off-by: Petri Gynther <pgynther@google.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: stable@kernel.org
Jean Delvare [Wed, 29 Jun 2011 09:36:10 +0000 (11:36 +0200)]
i2c-taos-evm: Fix log messages
* Print all error and information messages even when debugging is
disabled.
* Don't use adapter device to log messages before it is ready.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: stable@kernel.org
Yoshihiro Shimoda [Wed, 29 Jun 2011 04:23:42 +0000 (04:23 +0000)]
sh: fix the value of sh_dmae_slave_config in setup-sh7757
Fix the value of chcr for SCIF[2-4]_RX and RIIC[0-9]_RX and
the value of mid_rid for some RIIC.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Yoshihiro Shimoda [Wed, 29 Jun 2011 04:23:47 +0000 (04:23 +0000)]
sh: fix the INTC vector for IRQ and IRL in setup-sh7757
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Avi Kivity [Sun, 19 Jun 2011 16:21:11 +0000 (19:21 +0300)]
KVM: x86 emulator: fix %rip-relative addressing with immediate source operand
%rip-relative addressing is relative to the first byte of the next instruction,
so we need to add %rip only after we've fetched any immediate bytes.
Based on original patch by Li Xin <xin.li@intel.com>.
Signed-off-by: Avi Kivity <avi@redhat.com>
Acked-by: Li Xin <xin.li@intel.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Christian Dietrich [Sat, 4 Jun 2011 05:36:54 +0000 (05:36 +0000)]
arch/powerpc: use printk_ratelimited instead of printk_ratelimit
Since printk_ratelimit() shouldn't be used anymore (see comment in
include/linux/printk.h), replace it with printk_ratelimited.
Signed-off-by: Christian Dietrich <christian.dietrich@informatik.uni-erlangen.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Christian Dietrich [Sat, 4 Jun 2011 05:35:47 +0000 (05:35 +0000)]
powerpc/rtas-rtc: remove sideeffects of printk_ratelimit
Don't use printk_ratelimit() as an additional condition for returning
on an error. Because when the ratelimit is reached, printk_ratelimit
will return 0 and e.g. in rtas_get_boot_time won't check for an error
condition.
Signed-off-by: Christian Dietrich <christian.dietrich@informatik.uni-erlangen.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Michael Neuling [Mon, 27 Jun 2011 19:55:30 +0000 (19:55 +0000)]
powerpc/pseries: remove duplicate SCSI_BNX2_ISCSI in pseries_defconfig
Remove duplicate assignment of SCSI_BNX2_ISCSI in pseries_defconfig
introduced by:
37e0c21e powerpc/pseries: Enable iSCSI support for a number of cards
causes warning:
arch/powerpc/configs/pseries_defconfig:151:warning: override: reassigning to symbol SCSI_BNX2_ISCSI
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Hans-Christian Egtvedt [Tue, 28 Jun 2011 15:01:14 +0000 (17:01 +0200)]
watchdog: update author email for at32ap700x_wdt
This patch updates the email address of the at32ap700x_wdt driver supported by
me to an email account I will use on a more regular basis in the future.
Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Linus Torvalds [Tue, 28 Jun 2011 18:15:57 +0000 (11:15 -0700)]
Merge branch 'drm-intel-fixes' of git://git./linux/kernel/git/keithp/linux-2.6
* 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/keithp/linux-2.6:
drm/i915: Use chipset-specific irq installers
drm/i915: forcewake fix after reset
drm/i915: add Ivy Bridge page flip support
drm/i915: split page flip queueing into per-chipset functions
Linus Torvalds [Tue, 28 Jun 2011 18:15:36 +0000 (11:15 -0700)]
Merge branch 'driver-core-linus' of git://git./linux/kernel/git/gregkh/driver-core-2.6
* 'driver-core-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
Connector: Correctly set the error code in case of success when dispatching receive callbacks
Connector: Set the CN_NETLINK_USERS correctly
pti: PTI semantics fix in pti_tty_cleanup.
pti: ENXIO error case memory leak PTI fix.
pti: double-free security PTI fix
drivers:misc: ti-st: fix skipping of change remote baud
drivers/base/platform.c: don't mark platform_device_register_resndata() as __init_or_module
st_kim: Handle case of no device found for ID 0
firmware: fix GOOGLE_SMI kconfig dependency warning
Linus Torvalds [Tue, 28 Jun 2011 18:15:17 +0000 (11:15 -0700)]
Merge branch 'usb-linus' of git://git./linux/kernel/git/gregkh/usb-2.6
* 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
MAINTAINERS: add myself as maintainer of USB/IP
usb: r8a66597-hcd: fix cannot detect low/full speed device
USB: ehci-ath79: fix a NULL pointer dereference
USB: Add new FT232H chip to drivers/usb/serial/ftdi_sio.c
usb/isp1760: Fix bug preventing the unlinking of control urbs
USB: Fix up URB error codes to reflect implementation.
xhci: Always set urb->status to zero for isoc endpoints.
xhci: Add reset on resume quirk for asrock p67 host
xHCI 1.0: Incompatible Device Error
USB: don't let errors prevent system sleep
USB: don't let the hub driver prevent system sleep
USB: change maintainership of ohci-hcd and ehci-hcd
xHCI 1.0: Force Stopped Event(FSE)
xhci: Don't warn about zeroed bMaxBurst descriptor field.
USB: Free bandwidth when usb_disable_device is called.
xhci: Reject double add of active endpoints.
USB: TI 3410/5052 USB Serial Driver: Fix mem leak when firmware is too big.
usb: musb: gadget: clear TXPKTRDY flag when set FLUSHFIFO
usb: musb: host: compare status for negative error values
Linus Torvalds [Tue, 28 Jun 2011 18:14:55 +0000 (11:14 -0700)]
Merge branch 'tty-linus' of git://git./linux/kernel/git/gregkh/tty-2.6
* 'tty-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6:
serial: bcm63xx_uart: fix irq storm after rx fifo overrun.
amba pl011: platform data for reg lockup and glitch v2
amba pl011: workaround for uart registers lockup
tty: n_gsm: improper skb_pull() use was leaking framed data
tty: n_gsm: Fixed logic to decode break signal from modem status
TTY: ntty, add one more sanity check
TTY: ldisc, do not close until there are readers
8250: Fix capabilities when changing the port type
8250_pci: Fix missing const from merges
ARM: SAMSUNG: serial: Fix on handling of one clock source for UART
serial: ioremap warning fix for jsm driver.
8250_pci: add -ENODEV code for Intel EG20T PCH
Linus Torvalds [Tue, 28 Jun 2011 18:14:22 +0000 (11:14 -0700)]
Merge branch 'staging-linus' of git://git./linux/kernel/git/gregkh/staging-2.6
* 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6:
Staging: comedi: fix build breakages on some platforms
Staging: brcm80211: disable drivers except for X86 or MIPS platforms
Staging: brcm80211: disable drivers for PPC platforms
Staging: iio: Make IIO depend on GENERIC_HARDIRQS
Staging: mei: fix suspend failure
Staging: fix iio builds when IIO_RING_BUFFER is not enabled
Staging: Comedi: Build only on arches providing PAGE_KERNEL_NOCACHE
Staging: fix more iio builds when IIO_RING_BUFFER is not enabled
Linus Torvalds [Tue, 28 Jun 2011 18:14:00 +0000 (11:14 -0700)]
Merge branch 'for-linus' of git://neil.brown.name/md
* 'for-linus' of git://neil.brown.name/md:
md: avoid endless recovery loop when waiting for fail device to complete.
Chris Wilson [Tue, 28 Jun 2011 10:48:51 +0000 (11:48 +0100)]
drm/i915: Use chipset-specific irq installers
Konstantin Belousov pointed out that
4697995b98417 replaced the generic
i915_driver_irq_*install() functions with chipset specific routines
accessible only through driver->irq_*install(). So update the sanity
check in i915_request_wait() to match.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Keith Packard <keithp@keithp.com>
Ben Widawsky [Fri, 24 Jun 2011 21:31:47 +0000 (14:31 -0700)]
drm/i915: forcewake fix after reset
The failure is as follows:
1. Userspace gets forcewake lock, lock count >=1
2. GPU hang/reset occurs (forcewake bit is reset)
3. count is now incorrect
The failure can only occur when using the forcewake userspace lock.
This has the unfortunate consequence of messing up the driver as well as
userspace, unless userspace closes the debugfs file, the kernel will
never end up waking the GT since the refcount will be > 1.
The solution is to try to recover the correct forcewake state based on
the refcount. There is a period of time where userspace reads/writes may
occur after the reset, before the GT has been forcewaked. The interface
was never designed to be a perfect solution for userspace reads/writes,
and the kernel portion is fixed by this patch.
Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Keith Packard <keithp@keithp.com>
Vasiliy Kulikov [Fri, 24 Jun 2011 12:08:38 +0000 (16:08 +0400)]
proc: restrict access to /proc/PID/io
/proc/PID/io may be used for gathering private information. E.g. for
openssh and vsftpd daemons wchars/rchars may be used to learn the
precise password length. Restrict it to processes being able to ptrace
the target process.
ptrace_may_access() is needed to prevent keeping open file descriptor of
"io" file, executing setuid binary and gathering io information of the
setuid'ed process.
Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
John W. Linville [Mon, 27 Jun 2011 19:38:05 +0000 (15:38 -0400)]
iwlagn: use PCI_DMA_* for pci_* operations
"iwlagn: map command buffers BIDI" uses the DMA_* enumerations for DMA
directions, even though the pci_* DMA API is still in use. That patch
was undoubtedly developed on top of "iwlagn: don't use the PCI wrappers
for DMA operation", which is due in the next release.
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Axel Lin [Mon, 27 Jun 2011 14:37:16 +0000 (22:37 +0800)]
watchdog: gef_wdt: fix MODULE_ALIAS
Remove the space between "platform:" prefix and the driver name.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Martyn Welch <martyn.welch@ge.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Jesper Juhl [Thu, 26 May 2011 09:12:53 +0000 (11:12 +0200)]
watchdog: Intel SCU Watchdog: Fix build and remove duplicate code
Trying to build the Intel SCU Watchdog fails for me with gcc 4.6.0 -
$ gcc --version | head -n 1
gcc (GCC) 4.6.0
20110513 (prerelease)
like this :
CC drivers/watchdog/intel_scu_watchdog.o
In file included from drivers/watchdog/intel_scu_watchdog.c:49:0:
/home/jj/src/linux-2.6/arch/x86/include/asm/apb_timer.h: In function ‘apbt_time_init’:
/home/jj/src/linux-2.6/arch/x86/include/asm/apb_timer.h:65:42: warning: ‘return’ with a value, in function returning void [enabled by default]
drivers/watchdog/intel_scu_watchdog.c: In function ‘intel_scu_watchdog_init’:
drivers/watchdog/intel_scu_watchdog.c:468:2: error: implicit declaration of function ‘sfi_get_mtmr’ [-Werror=implicit-function-declaration]
drivers/watchdog/intel_scu_watchdog.c:468:32: warning: assignment makes pointer from integer without a cast [enabled by default]
cc1: some warnings being treated as errors
make[1]: *** [drivers/watchdog/intel_scu_watchdog.o] Error 1
make: *** [drivers/watchdog/intel_scu_watchdog.o] Error 2
Additionally, linux/types.h is needlessly being included twice in
drivers/watchdog/intel_scu_watchdog.c
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Florian Fainelli [Wed, 15 Jun 2011 17:15:52 +0000 (19:15 +0200)]
watchdog: mtx1-wdt: fix section mismatch
Fix section mismatch and remove unused variable 'tmp'.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Florian Fainelli [Wed, 15 Jun 2011 17:15:41 +0000 (19:15 +0200)]
watchdog: mtx1-wdt: fix GPIO toggling
Commit
e391be76 (MIPS: Alchemy: Clean up GPIO registers and accessors)
changed the way the GPIO was toggled. Prior to this patch, we would
always actively drive the GPIO output to either 0 or 1, this patch
drove the GPIO active to 0, and put the GPIO in tristate to drive it
to 1, unfortunately this does not work, revert back to active driving.
Using a signed variable (gstate) to hold the gpio state and using a bit-
wise operation on it also resulted in toggling value from 1 to -2 since
the variable is signed. This value was then passed on to gpio_direction_
output, which always perform a if (value) ... to set the value to the
gpio, so we were always writing a 1 to this GPIO instead of 1 -> 0 -> 1 ...
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: stable <stable@kernel.org>
Florian Fainelli [Wed, 15 Jun 2011 17:15:23 +0000 (19:15 +0200)]
watchdog: mtx1-wdt: request gpio before using it
Otherwise, the gpiolib autorequest feature will produce a WARN_ON():
WARNING: at drivers/gpio/gpiolib.c:101 0x8020ec6c()
autorequest GPIO-215
[...]
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: stable <stable@kernel.org>
Mark Brown [Tue, 31 May 2011 13:46:55 +0000 (14:46 +0100)]
watchdog: Handle multiple wm831x watchdogs being registered
Due to the whole single instance based watchdog API we use static data
for the wm831x watchdog which means that if the system tries to register
a second one we end up trying to register the same miscdevice again,
corrupting the miscdevice list. Work around this by checking for duplicate
registrations until we get a watchdog core.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
NeilBrown [Tue, 28 Jun 2011 06:59:42 +0000 (16:59 +1000)]
md: avoid endless recovery loop when waiting for fail device to complete.
If a device fails in a way that causes pending request to take a while
to complete, md will not be able to immediately remove it from the
array in remove_and_add_spares.
It will then incorrectly look like a spare device and md will try to
recover it even though it is failed.
This leads to a recovery process starting and instantly aborting over
and over again.
We should check if the device is faulty before considering it to be a
spare. This will avoid trying to start a recovery that cannot
proceed.
This bug was introduced in 2.6.26 so that patch is suitable for any
kernel since then.
Cc: stable@kernel.org
Reported-by: Jim Paradis <james.paradis@stratus.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Steffen Klassert [Wed, 22 Jun 2011 01:05:37 +0000 (01:05 +0000)]
ipv4: Fix IPsec slowpath fragmentation problem
ip_append_data() builds packets based on the mtu from dst_mtu(rt->dst.path).
On IPsec the effective mtu is lower because we need to add the protocol
headers and trailers later when we do the IPsec transformations. So after
the IPsec transformations the packet might be too big, which leads to a
slowpath fragmentation then. This patch fixes this by building the packets
based on the lower IPsec mtu from dst_mtu(&rt->dst) and adapts the exthdr
handling to this.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steffen Klassert [Wed, 22 Jun 2011 01:04:37 +0000 (01:04 +0000)]
ipv4: Fix packet size calculation in __ip_append_data
Git commit
59104f06 (ip: take care of last fragment in ip_append_data)
added a check to see if we exceed the mtu when we add trailer_len.
However, the mtu is already subtracted by the trailer length when the
xfrm transfomation bundles are set up. So IPsec packets with mtu
size get fragmented, or if the DF bit is set the packets will not
be send even though they match the mtu perfectly fine. This patch
actually reverts commit
59104f06.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Tue, 28 Jun 2011 02:12:22 +0000 (19:12 -0700)]
Linux 3.0-rc5
Hugh Dickins [Mon, 27 Jun 2011 23:18:20 +0000 (16:18 -0700)]
drm/i915: more struct_mutex locking
When auditing the locking in i915_gem.c (for a prospective change which
I then abandoned), I noticed two places where struct_mutex is not held
across GEM object manipulations that would usually require it.
Since one is in initial setup and the other in driver unload, I'm
guessing the mutex is not required for either; but post a patch in case
it is.
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Keith Packard <keithp@keithp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Hugh Dickins [Mon, 27 Jun 2011 23:18:19 +0000 (16:18 -0700)]
drm/i915: use shmem_truncate_range
The interface to ->truncate_range is changing very slightly: once "tmpfs:
take control of its truncate_range" has been applied, this can be applied.
For now there is only a slight inefficiency while this remains unapplied,
but it will soon become essential for managing shmem's use of swap.
Change i915_gem_object_truncate() to use shmem_truncate_range() directly:
which should also spare i915 later change if we switch from
inode_operations->truncate_range to file_operations->fallocate.
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Keith Packard <keithp@keithp.com>
Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Hugh Dickins [Mon, 27 Jun 2011 23:18:18 +0000 (16:18 -0700)]
drm/i915: use shmem_read_mapping_page
Soon tmpfs will stop supporting ->readpage and read_cache_page_gfp(): once
"tmpfs: add shmem_read_mapping_page_gfp" has been applied, this patch can
be applied to ease the transition.
Make i915_gem_object_get_pages_gtt() use shmem_read_mapping_page_gfp() in
the one place it's needed; elsewhere use shmem_read_mapping_page(), with
the mapping's gfp_mask properly initialized.
Forget about __GFP_COLD: since tmpfs initializes its pages with memset,
asking for a cold page is counter-productive.
Include linux/shmem_fs.h also in drm_gem.c: with shmem_file_setup() now
declared there too, we shall remove the prototype from linux/mm.h later.
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Keith Packard <keithp@keithp.com>
Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Hugh Dickins [Mon, 27 Jun 2011 23:18:17 +0000 (16:18 -0700)]
drm/ttm: use shmem_read_mapping_page
Soon tmpfs will stop supporting ->readpage and read_mapping_page(): once
"tmpfs: add shmem_read_mapping_page_gfp" has been applied, this patch can
be applied to ease the transition.
ttm_tt_swapin() and ttm_tt_swapout() use shmem_read_mapping_page() in
place of read_mapping_page(), since their swap_space has been created with
shmem_file_setup().
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andrew Morton [Mon, 27 Jun 2011 23:18:16 +0000 (16:18 -0700)]
drivers/tty/serial/8250_pci.c: fix warning
Fis the warning
drivers/tty/serial/8250_pci.c:1457: warning: initialization from incompatible pointer type
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ralf Baechle [Mon, 27 Jun 2011 23:18:15 +0000 (16:18 -0700)]
drivers/misc/ioc4.c: fix section mismatch / race condition
Fix this section mismatch:
WARNING: drivers/misc/ioc4.o(.data+0x144): Section mismatch in reference from the variable ioc4_load_modules_work to the function .devinit.text:ioc4_load_modules()
The variable ioc4_load_modules_work references
the function __devinit ioc4_load_modules()
If the reference is valid then annotate the
variable with __init* or __refdata (see linux/init.h) or name the variable:
*driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console
This one is potentially fatal; by the time ioc4_load_modules is invoked
it may already have been freed. For that reason ioc4_load_modules_work
can't be turned to __devinitdata but also because it's referenced in
ioc4_exit.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Brent Casavant <bcasavan@sgi.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ralf Baechle [Mon, 27 Jun 2011 23:18:14 +0000 (16:18 -0700)]
drivers/leds/leds-lp5523.c: fix section mismatches
Fix this section mismatch:
WARNING: drivers/leds/leds-lp5523.o(.text+0x12f4): Section mismatch in reference from the function lp5523_probe() to the function .init.text:lp5523_init_led()
The function lp5523_probe() references
the function __init lp5523_init_led().
This is often because lp5523_probe lacks a __init
annotation or the annotation of lp5523_init_led is wrong.
Fixing this one triggers one more mismatch, fix that one as well.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ralf Baechle [Mon, 27 Jun 2011 23:18:13 +0000 (16:18 -0700)]
drivers/leds/leds-lp5521.c: fix section mismatches
Fix this section mismatch:
WARNING: drivers/leds/leds-lp5521.o(.text+0xf2c): Section mismatch in reference from the function lp5521_probe() to the function .init.text:lp5521_init_led()
The function lp5521_probe() references
the function __init lp5521_init_led().
This is often because lp5521_probe lacks a __init
annotation or the annotation of lp5521_init_led is wrong.
Fixing this mismatch triggers one more mismatch, fix that one as well.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
KAMEZAWA Hiroyuki [Mon, 27 Jun 2011 23:18:12 +0000 (16:18 -0700)]
memcg: fix direct softlimit reclaim to be called in limit path
Commit
d149e3b25d7c ("memcg: add the soft_limit reclaim in global direct
reclaim") adds a softlimit hook to shrink_zones(). By this, soft limit
is called as
try_to_free_pages()
do_try_to_free_pages()
shrink_zones()
mem_cgroup_soft_limit_reclaim()
Then, direct reclaim is memcg softlimit hint aware, now.
But, the memory cgroup's "limit" path can call softlimit shrinker.
try_to_free_mem_cgroup_pages()
do_try_to_free_pages()
shrink_zones()
mem_cgroup_soft_limit_reclaim()
This will cause a global reclaim when a memcg hits limit.
This is bug. soft_limit_reclaim() should be called when
scanning_global_lru(sc) == true.
And the commit adds a variable "total_scanned" for counting softlimit
scanned pages....it's not "total". This patch removes the variable and
update sc->nr_scanned instead of it. This will affect shrink_slab()'s
scan condition but, global LRU is scanned by softlimit and I think this
change makes sense.
TODO: avoid too much scanning of a zone when softlimit did enough work.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Cc: Ying Han <yinghan@google.com>
Cc: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Vasiliy Kulikov [Mon, 27 Jun 2011 23:18:11 +0000 (16:18 -0700)]
taskstats: don't allow duplicate entries in listener mode
Currently a single process may register exit handlers unlimited times.
It may lead to a bloated listeners chain and very slow process
terminations.
Eg after 10KK sent TASKSTATS_CMD_ATTR_REGISTER_CPUMASKs ~300 Mb of
kernel memory is stolen for the handlers chain and "time id" shows 2-7
seconds instead of normal 0.003. It makes it possible to exhaust all
kernel memory and to eat much of CPU time by triggerring numerous exits
on a single CPU.
The patch limits the number of times a single process may register
itself on a single CPU to one.
One little issue is kept unfixed - as taskstats_exit() is called before
exit_files() in do_exit(), the orphaned listener entry (if it was not
explicitly deregistered) is kept until the next someone's exit() and
implicit deregistration in send_cpu_listeners(). So, if a process
registered itself as a listener exits and the next spawned process gets
the same pid, it would inherit taskstats attributes.
Signed-off-by: Vasiliy Kulikov <segooon@gmail.com>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jan Kara [Mon, 27 Jun 2011 23:18:10 +0000 (16:18 -0700)]
mm: fix assertion mapping->nrpages == 0 in end_writeback()
Under heavy memory and filesystem load, users observe the assertion
mapping->nrpages == 0 in end_writeback() trigger. This can be caused by
page reclaim reclaiming the last page from a mapping in the following
race:
CPU0 CPU1
...
shrink_page_list()
__remove_mapping()
__delete_from_page_cache()
radix_tree_delete()
evict_inode()
truncate_inode_pages()
truncate_inode_pages_range()
pagevec_lookup() - finds nothing
end_writeback()
mapping->nrpages != 0 -> BUG
page->mapping = NULL
mapping->nrpages--
Fix the problem by doing a reliable check of mapping->nrpages under
mapping->tree_lock in end_writeback().
Analyzed by Jay <jinshan.xiong@whamcloud.com>, lost in LKML, and dug out
by Miklos Szeredi <mszeredi@suse.de>.
Cc: Jay <jinshan.xiong@whamcloud.com>
Cc: Miklos Szeredi <mszeredi@suse.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Peter Zijlstra [Mon, 27 Jun 2011 23:18:09 +0000 (16:18 -0700)]
mm/memory-failure.c: fix spinlock vs mutex order
We cannot take a mutex while holding a spinlock, so flip the order and
fix the locking documentation.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Josh Hunt [Mon, 27 Jun 2011 23:18:08 +0000 (16:18 -0700)]
drivers/misc/lkdtm.c: fix race when crashpoint is hit multiple times before checking count
We observed the crash point count going negative in cases where the
crash point is hit multiple times before the check of "count == 0" is
done. Because of this we never call lkdtm_do_action(). This patch just
adds a spinlock to protect count.
Reported-by: Tapan Dhimant <tdhimant@akamai.com>
Signed-off-by: Josh Hunt <johunt@akamai.com>
Acked-by: Ankita Garg <ankita@in.ibm.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Chris Metcalf [Mon, 27 Jun 2011 23:18:07 +0000 (16:18 -0700)]
include/linux/compat.h: declare compat_sys_sendmmsg()
This is required for tilegx to be able to use the compat unistd.h header
where compat_sys_sendmmsg() is now mentioned.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bob Liu [Mon, 27 Jun 2011 23:18:06 +0000 (16:18 -0700)]
romfs: fix romfs_get_unmapped_area() argument check
romfs_get_unmapped_area() checks argument `len' without considering
PAGE_ALIGN which will cause do_mmap_pgoff() return -EINVAL error after
commit
f67d9b1576c ("nommu: add page_align to mmap").
Fix the check by changing it in same way ramfs_nommu_get_unmapped_area()
was changed in ramfs/file-nommu.c.
Signed-off-by: Bob Liu <lliubbo@gmail.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Acked-by: Greg Ungerer <gerg@snapgear.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Richard Weinberger [Mon, 27 Jun 2011 23:18:05 +0000 (16:18 -0700)]
um: add asm/percpu.h
To make SLUB work on UML we need this_cpu_cmpxchg from
asm-generic/percpu.h.
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Priyanka Jain [Mon, 27 Jun 2011 23:18:04 +0000 (16:18 -0700)]
drivers/rtc/rtc-ds1307.c: add support for RTC device pt7c4338
PT7C4338 chip is being manufactured by Pericom Technology Inc. It is a
serial real-time clock which provides:
1) Low-power clock/calendar.
2) Programmable square-wave output.
It has 56 bytes of nonvolatile RAM. Its register set is same as that of
rtc device: DS1307.
Signed-off-by: Priyanka Jain <Priyanka.Jain@freescale.com>
Acked-by: Timur Tabi <timur@freescale.com>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Hugh Dickins [Mon, 27 Jun 2011 23:18:04 +0000 (16:18 -0700)]
tmpfs: add shmem_read_mapping_page_gfp
Although it is used (by i915) on nothing but tmpfs, read_cache_page_gfp()
is unsuited to tmpfs, because it inserts a page into pagecache before
calling the filesystem's ->readpage: tmpfs may have pages in swapcache
which only it knows how to locate and switch to filecache.
At present tmpfs provides a ->readpage method, and copes with this by
copying pages; but soon we can simplify it by removing its ->readpage.
Provide shmem_read_mapping_page_gfp() now, ready for that transition,
Export shmem_read_mapping_page_gfp() and add it to list in shmem_fs.h,
with shmem_read_mapping_page() inline for the common mapping_gfp case.
(shmem_read_mapping_page_gfp or shmem_read_cache_page_gfp? Generally the
read_mapping_page functions use the mapping's ->readpage, and the
read_cache_page functions use the supplied filler, so I think
read_cache_page_gfp was slightly misnamed.)
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Hugh Dickins [Mon, 27 Jun 2011 23:18:03 +0000 (16:18 -0700)]
tmpfs: take control of its truncate_range
2.6.35's new truncate convention gave tmpfs the opportunity to control
its file truncation, no longer enforced from outside by vmtruncate().
We shall want to build upon that, to handle pagecache and swap together.
Slightly redefine the ->truncate_range interface: let it now be called
between the unmap_mapping_range()s, with the filesystem responsible for
doing the truncate_inode_pages_range() from it - just as the filesystem
is nowadays responsible for doing that from its ->setattr.
Let's rename shmem_notify_change() to shmem_setattr(). Instead of
calling the generic truncate_setsize(), bring that code in so we can
call shmem_truncate_range() - which will later be updated to perform its
own variant of truncate_inode_pages_range().
Remove the punch_hole unmap_mapping_range() from shmem_truncate_range():
now that the COW's unmap_mapping_range() comes after ->truncate_range,
there is no need to call it a third time.
Export shmem_truncate_range() and add it to the list in shmem_fs.h, so
that i915_gem_object_truncate() can call it explicitly in future; get
this patch in first, then update drm/i915 once this is available (until
then, i915 will just be doing the truncate_inode_pages() twice).
Though introduced five years ago, no other filesystem is implementing
->truncate_range, and its only other user is madvise(,,MADV_REMOVE): we
expect to convert it to fallocate(,FALLOC_FL_PUNCH_HOLE,,) shortly,
whereupon ->truncate_range can be removed from inode_operations -
shmem_truncate_range() will help i915 across that transition too.
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Hugh Dickins [Mon, 27 Jun 2011 23:18:02 +0000 (16:18 -0700)]
mm: move shmem prototypes to shmem_fs.h
Before adding any more global entry points into shmem.c, gather such
prototypes into shmem_fs.h. Remove mm's own declarations from swap.h,
but for now leave the ones in mm.h: because shmem_file_setup() and
shmem_zero_setup() are called from various places, and we should not
force other subsystems to update immediately.
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Hugh Dickins [Mon, 27 Jun 2011 23:18:01 +0000 (16:18 -0700)]
mm: move vmtruncate_range to truncate.c
You would expect to find vmtruncate_range() next to vmtruncate() in
mm/truncate.c: move it there.
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Vitaliy Ivanov [Mon, 27 Jun 2011 16:07:08 +0000 (19:07 +0300)]
Fix some kernel-doc warnings
Fix 'make htmldocs' warnings:
Warning(/include/linux/hrtimer.h:153): No description found for parameter 'clockid'
Warning(/include/linux/device.h:604): Excess struct/union/enum/typedef member 'of_match' description in 'device'
Warning(/include/net/sock.h:349): Excess struct/union/enum/typedef member 'sk_rmem_alloc' description in 'sock'
Signed-off-by: Vitaliy Ivanov <vitalivanov@gmail.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>