Hugh Dickins [Wed, 11 May 2011 22:13:38 +0000 (15:13 -0700)]
tmpfs: fix spurious ENOSPC when racing with unswap
Testing the shmem_swaplist replacements for igrab() revealed another bug:
writes to /dev/loop0 on a tmpfs file which fills its filesystem were
sometimes failing with "Buffer I/O error"s.
These came from ENOSPC failures of shmem_getpage(), when racing with
swapoff: the same could happen when racing with another shmem_getpage(),
pulling the page in from swap in between our find_lock_page() and our
taking the info->lock (though not in the single-threaded loop case).
This is unacceptable, and surprising that I've not noticed it before:
it dates back many years, but (presumably) was made a lot easier to
reproduce in 2.6.36, which sited a page preallocation in the race window.
Fix it by rechecking the page cache before settling on an ENOSPC error.
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Hugh Dickins [Wed, 11 May 2011 22:13:37 +0000 (15:13 -0700)]
tmpfs: fix race between umount and swapoff
The use of igrab() in swapoff's shmem_unuse_inode() is just as vulnerable
to umount as that in shmem_writepage().
Fix this instance by extending the protection of shmem_swaplist_mutex
right across shmem_unuse_inode(): while it's on the list, the inode cannot
be evicted (and the filesystem cannot be unmounted) without
shmem_evict_inode() taking that mutex to remove it from the list.
But since shmem_writepage() might take that mutex, we should avoid making
memory allocations or memcg charges while holding it: prepare them at the
outer level in shmem_unuse(). When mem_cgroup_cache_charge() was
originally placed, we didn't know until that point that the page from swap
was actually a shmem page; but nowadays it's noted in the swap_map, so
we're safe to charge upfront. For the radix_tree, do as is done in
shmem_getpage(): preload upfront, but don't pin to the cpu; so we make a
habit of refreshing the node pool, but might dip into GFP_NOWAIT reserves
on occasion if subsequently preempted.
With the allocation and charge moved out from shmem_unuse_inode(),
we can also hold index map and info->lock over from finding the entry.
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Hugh Dickins [Wed, 11 May 2011 22:13:36 +0000 (15:13 -0700)]
tmpfs: fix race between umount and writepage
Konstanin Khlebnikov reports that a dangerous race between umount and
shmem_writepage can be reproduced by this script:
for i in {1..300} ; do
mkdir $i
while true ; do
mount -t tmpfs none $i
dd if=/dev/zero of=$i/test bs=1M count=$(($RANDOM % 100))
umount $i
done &
done
on a 6xCPU node with 8Gb RAM: kernel very unstable after this accident. =)
Kernel log:
VFS: Busy inodes after unmount of tmpfs.
Self-destruct in 5 seconds. Have a nice day...
WARNING: at lib/list_debug.c:53 __list_del_entry+0x8d/0x98()
list_del corruption. prev->next should be
ffff880222fdaac8, but was (null)
Pid: 11222, comm: mount.tmpfs Not tainted 2.6.39-rc2+ #4
Call Trace:
warn_slowpath_common+0x80/0x98
warn_slowpath_fmt+0x41/0x43
__list_del_entry+0x8d/0x98
evict+0x50/0x113
iput+0x138/0x141
...
BUG: unable to handle kernel paging request at
ffffffffffffffff
IP: shmem_free_blocks+0x18/0x4c
Pid: 10422, comm: dd Tainted: G W 2.6.39-rc2+ #4
Call Trace:
shmem_recalc_inode+0x61/0x66
shmem_writepage+0xba/0x1dc
pageout+0x13c/0x24c
shrink_page_list+0x28e/0x4be
shrink_inactive_list+0x21f/0x382
...
shmem_writepage() calls igrab() on the inode for the page which came from
page reclaim, to add it later into shmem_swaplist for swapoff operation.
This igrab() can race with super-block deactivating process:
shrink_inactive_list() deactivate_super()
pageout() tmpfs_fs_type->kill_sb()
shmem_writepage() kill_litter_super()
generic_shutdown_super()
evict_inodes()
igrab()
atomic_read(&inode->i_count)
skip-inode
iput()
if (!list_empty(&sb->s_inodes))
printk("VFS: Busy inodes after...
This igrap-iput pair was added in commit
1b1b32f2c6f6 "tmpfs: fix
shmem_swaplist races" based on incorrect assumptions: igrab() protects the
inode from concurrent eviction by deletion, but it does nothing to protect
it from concurrent unmounting, which goes ahead despite the raised
i_count.
So this use of igrab() was wrong all along, but the race made much worse
in 2.6.37 when commit
63997e98a3be "split invalidate_inodes()" replaced
two attempts at invalidate_inodes() by a single evict_inodes().
Konstantin posted a plausible patch, raising sb->s_active too: I'm unsure
whether it was correct or not; but burnt once by igrab(), I am sure that
we don't want to rely more deeply upon externals here.
Fix it by adding the inode to shmem_swaplist earlier, while the page lock
on page in page cache still secures the inode against eviction, without
artifically raising i_count. It was originally added later because
shmem_unuse_inode() is liable to remove an inode from the list while it's
unswapped; but we can guard against that by taking spinlock before
dropping mutex.
Reported-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Signed-off-by: Hugh Dickins <hughd@google.com>
Tested-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andi Kleen [Wed, 11 May 2011 22:13:35 +0000 (15:13 -0700)]
memcg: allocate memory cgroup structures in local nodes
Commit
dde79e005a769 ("page_cgroup: reduce allocation overhead for
page_cgroup array for CONFIG_SPARSEMEM") added a regression that the
memory cgroup data structures all end up in node 0 because the first
attempt at allocating them would not pass in a node hint. Since the
initialization runs on CPU #0 it would all end up node 0. This is a
problem on large memory systems, where node 0 would lose a lot of
memory.
Change the alloc_pages_exact() to alloc_pages_exact_nid(). This will
still fall back to other nodes if not enough memory is available.
[ RED-PEN: right now it would fall back first before trying
vmalloc_node. Probably not the best strategy ... But I left it like
that for now. ]
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Reported-by: Doug Nelson
Cc: David Rientjes <rientjes@google.com>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Cc: Dave Hansen <dave@linux.vnet.ibm.com>
Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andi Kleen [Wed, 11 May 2011 22:13:34 +0000 (15:13 -0700)]
mm: add alloc_pages_exact_nid()
Add a alloc_pages_exact_nid() that allocates on a specific node.
The naming is quite broken, but fixing that would need a larger renaming
action.
[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: tweak comment]
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Dave Hansen <dave@linux.vnet.ibm.com>
Cc: David Rientjes <rientjes@google.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Harry Wei [Wed, 11 May 2011 22:13:33 +0000 (15:13 -0700)]
MAINTAINERS: fix sorting
Take alphabetical orders for MAINTAINERS file.
Signed-off-by: Harry Wei <harryxiyou@gmail.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Yinghai Lu [Wed, 11 May 2011 22:13:32 +0000 (15:13 -0700)]
mm: use alloc_bootmem_node_nopanic() on really needed path
Stefan found nobootmem does not work on his system that has only 8M of
RAM. This causes an early panic:
BIOS-provided physical RAM map:
BIOS-88:
0000000000000000 -
000000000009f000 (usable)
BIOS-88:
0000000000100000 -
0000000000840000 (usable)
bootconsole [earlyser0] enabled
Notice: NX (Execute Disable) protection missing in CPU or disabled in BIOS!
DMI not present or invalid.
last_pfn = 0x840 max_arch_pfn = 0x100000
init_memory_mapping:
0000000000000000-
0000000000840000
8MB LOWMEM available.
mapped low ram: 0 -
00840000
low ram: 0 -
00840000
Zone PFN ranges:
DMA 0x00000001 -> 0x00001000
Normal empty
Movable zone start PFN for each node
early_node_map[2] active PFN ranges
0: 0x00000001 -> 0x0000009f
0: 0x00000100 -> 0x00000840
BUG: Int 6: CR2 (null)
EDI
c034663c ESI (null) EBP
c0329f38 ESP
c0329ef4
EBX
c0346380 EDX
00000006 ECX
ffffffff EAX
fffffff4
err (null) EIP
c0353191 CS
c0320060 flg
00010082
Stack: (null)
c030c533 000007cd (null)
c030c533 00000001 (null) (null)
00000003 0000083f 00000018 00000002 00000002 c0329f6c c03534d6 (null)
(null)
00000100 00000840 (null)
c0329f64 00000001 00001000 (null)
Pid: 0, comm: swapper Not tainted 2.6.36 #5
Call Trace:
[<
c02e3707>] ? 0xc02e3707
[<
c035e6e5>] 0xc035e6e5
[<
c0353191>] ? 0xc0353191
[<
c03534d6>] 0xc03534d6
[<
c034f1cd>] 0xc034f1cd
[<
c034a824>] 0xc034a824
[<
c03513cb>] ? 0xc03513cb
[<
c0349432>] 0xc0349432
[<
c0349066>] 0xc0349066
It turns out that we should ignore the low limit of 16M.
Use alloc_bootmem_node_nopanic() in this case.
[akpm@linux-foundation.org: less mess]
Signed-off-by: Yinghai LU <yinghai@kernel.org>
Reported-by: Stefan Hellermann <stefan@the2masters.de>
Tested-by: Stefan Hellermann <stefan@the2masters.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: <stable@kernel.org> [2.6.34+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Minchan Kim [Wed, 11 May 2011 22:13:30 +0000 (15:13 -0700)]
mm: check PageUnevictable in lru_deactivate_fn()
The lru_deactivate_fn should not move page which in on unevictable lru
into inactive list. Otherwise, we can meet BUG when we use
isolate_lru_pages as __isolate_lru_page could return -EINVAL.
Reported-by: Ying Han <yinghan@google.com>
Tested-by: Ying Han <yinghan@google.com>
Signed-off-by: Minchan Kim <minchan.kim@gmail.com>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Reviewed-by: Rik van Riel<riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ben Dooks [Wed, 11 May 2011 22:13:28 +0000 (15:13 -0700)]
drivers/rtc/rtc-s3c.c: fixup wake support for rtc
The driver is not balancing set_irq and disable_irq_wake() calls, so
ensure that it keeps track of whether the wake is enabled.
The fixes the following error on S3C6410 devices:
WARNING: at kernel/irq/manage.c:382 set_irq_wake+0x84/0xec()
Unbalanced IRQ 92 wake disable
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Wed, 11 May 2011 00:39:01 +0000 (17:39 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (27 commits)
slcan: fix ldisc->open retval
net/usb: mark LG VL600 LTE modem ethernet interface as WWAN
xfrm: Don't allow esn with disabled anti replay detection
xfrm: Assign the inner mode output function to the dst entry
net: dev_close() should check IFF_UP
vlan: fix GVRP at dismantle time
netfilter: revert
a2361c8735e07322023aedc36e4938b35af31eb0
netfilter: IPv6: fix DSCP mangle code
netfilter: IPv6: initialize TOS field in REJECT target module
IPVS: init and cleanup restructuring
IPVS: Change of socket usage to enable name space exit.
netfilter: ebtables: only call xt_compat_add_offset once per rule
netfilter: fix ebtables compat support
netfilter: ctnetlink: fix timestamp support for new conntracks
pch_gbe: support ML7223 IOH
PCH_GbE : Fixed the issue of checksum judgment
PCH_GbE : Fixed the issue of collision detection
NET: slip, fix ldisc->open retval
be2net: Fixed bugs related to PVID.
ehea: fix wrongly reported speed and port
...
David Rientjes [Wed, 11 May 2011 00:08:54 +0000 (17:08 -0700)]
slub: Revert "[PARISC] slub: fix panic with DISCONTIGMEM"
This reverts commit
4a5fa3590f09, which did not allow SLUB to be used
on architectures that use DISCONTIGMEM without compiling NUMA support
without CONFIG_BROKEN also set.
The slub panic that it was intended to prevent is addressed by
d9b41e0b54fd ("[PARISC] set memory ranges in N_NORMAL_MEMORY when
onlined") on parisc so there is no further slub issues with such a
configuration.
The reverts allows SLUB now to be used on such architectures since
there haven't been any reports of additional errors.
Cc: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David S. Miller [Tue, 10 May 2011 22:04:35 +0000 (15:04 -0700)]
Merge branch 'pablo/nf-2.6-updates' of git://1984.lsi.us.es/net-2.6
Oliver Hartkopp [Tue, 10 May 2011 20:12:30 +0000 (13:12 -0700)]
slcan: fix ldisc->open retval
TTY layer expects 0 if the ldisc->open operation succeeded.
Reported-by: Matvejchikov Ilya <matvejchikov@gmail.com>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dan Williams [Mon, 9 May 2011 07:43:20 +0000 (07:43 +0000)]
net/usb: mark LG VL600 LTE modem ethernet interface as WWAN
Like other mobile broadband device ethernet interfaces, mark the LG
VL600 with the 'wwan' devtype so userspace knows it needs additional
configuration via the AT port before the interface can be used.
Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steffen Klassert [Mon, 9 May 2011 19:43:05 +0000 (19:43 +0000)]
xfrm: Don't allow esn with disabled anti replay detection
Unlike the standard case, disabled anti replay detection needs some
nontrivial extra treatment on ESN. RFC 4303 states:
Note: If a receiver chooses to not enable anti-replay for an SA, then
the receiver SHOULD NOT negotiate ESN in an SA management protocol.
Use of ESN creates a need for the receiver to manage the anti-replay
window (in order to determine the correct value for the high-order
bits of the ESN, which are employed in the ICV computation), which is
generally contrary to the notion of disabling anti-replay for an SA.
So return an error if an ESN state with disabled anti replay detection
is inserted for now and add the extra treatment later if we need it.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steffen Klassert [Mon, 9 May 2011 19:36:38 +0000 (19:36 +0000)]
xfrm: Assign the inner mode output function to the dst entry
As it is, we assign the outer modes output function to the dst entry
when we create the xfrm bundle. This leads to two problems on interfamily
scenarios. We might insert ipv4 packets into ip6_fragment when called
from xfrm6_output. The system crashes if we try to fragment an ipv4
packet with ip6_fragment. This issue was introduced with git commit
ad0081e4 (ipv6: Fragment locally generated tunnel-mode IPSec6 packets
as needed). The second issue is, that we might insert ipv4 packets in
netfilter6 and vice versa on interfamily scenarios.
With this patch we assign the inner mode output function to the dst entry
when we create the xfrm bundle. So xfrm4_output/xfrm6_output from the inner
mode is used and the right fragmentation and netfilter functions are called.
We switch then to outer mode with the output_finish functions.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Tue, 10 May 2011 19:26:06 +0000 (12:26 -0700)]
net: dev_close() should check IFF_UP
Commit
443457242beb (factorize sync-rcu call in
unregister_netdevice_many) mistakenly removed one test from dev_close()
Following actions trigger a BUG :
modprobe bonding
modprobe dummy
ifconfig bond0 up
ifenslave bond0 dummy0
rmmod dummy
dev_close() must not close a non IFF_UP device.
With help from Frank Blaschka and Einar EL Lueck
Reported-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Reported-by: Einar EL Lueck <ELELUECK@de.ibm.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Tue, 10 May 2011 19:22:54 +0000 (12:22 -0700)]
vlan: fix GVRP at dismantle time
ip link add link eth2 eth2.103 type vlan id 103 gvrp on loose_binding on
ip link set eth2.103 up
rmmod tg3 # driver providing eth2
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<
ffffffffa0030c9e>] garp_request_leave+0x3e/0xc0 [garp]
PGD
11d251067 PUD
11b9e0067 PMD 0
Oops: 0000 [#1] SMP
last sysfs file: /sys/devices/virtual/net/eth2.104/ifindex
CPU 0
Modules linked in: tg3(-) 8021q garp nfsd lockd auth_rpcgss sunrpc libphy sg [last unloaded: x_tables]
Pid: 11494, comm: rmmod Tainted: G W
2.6.39-rc6-00261-gfd71257-dirty #580 HP ProLiant BL460c G6
RIP: 0010:[<
ffffffffa0030c9e>] [<
ffffffffa0030c9e>] garp_request_leave+0x3e/0xc0 [garp]
RSP: 0018:
ffff88007a19bae8 EFLAGS:
00010286
RAX:
0000000000000000 RBX:
ffff88011b5e2000 RCX:
0000000000000002
RDX:
0000000000000000 RSI:
0000000000000175 RDI:
ffffffffa0030d5b
RBP:
ffff88007a19bb18 R08:
0000000000000001 R09:
ffff88011bd64a00
R10:
ffff88011d34ec00 R11:
0000000000000000 R12:
0000000000000002
R13:
ffff88007a19bc48 R14:
ffff88007a19bb88 R15:
0000000000000001
FS:
0000000000000000(0000) GS:
ffff88011fc00000(0063) knlGS:
00000000f77d76c0
CS: 0010 DS: 002b ES: 002b CR0:
000000008005003b
CR2:
0000000000000000 CR3:
000000011a675000 CR4:
00000000000006f0
DR0:
0000000000000000 DR1:
0000000000000000 DR2:
0000000000000000
DR3:
0000000000000000 DR6:
00000000ffff0ff0 DR7:
0000000000000400
Process rmmod (pid: 11494, threadinfo
ffff88007a19a000, task
ffff8800798595c0)
Stack:
ffff88007a19bb36 ffff88011c84b800 ffff88011b5e2000 ffff88007a19bc48
ffff88007a19bb88 0000000000000006 ffff88007a19bb38 ffffffffa003a5f6
ffff88007a19bb38 670088007a19bba8 ffff88007a19bb58 ffffffffa00397e7
Call Trace:
[<
ffffffffa003a5f6>] vlan_gvrp_request_leave+0x46/0x50 [8021q]
[<
ffffffffa00397e7>] vlan_dev_stop+0xb7/0xc0 [8021q]
[<
ffffffff8137e427>] __dev_close_many+0x87/0xe0
[<
ffffffff8137e507>] dev_close_many+0x87/0x110
[<
ffffffff8137e630>] rollback_registered_many+0xa0/0x240
[<
ffffffff8137e7e9>] unregister_netdevice_many+0x19/0x60
[<
ffffffffa00389eb>] vlan_device_event+0x53b/0x550 [8021q]
[<
ffffffff8143f448>] ? ip6mr_device_event+0xa8/0xd0
[<
ffffffff81479d03>] notifier_call_chain+0x53/0x80
[<
ffffffff81062539>] __raw_notifier_call_chain+0x9/0x10
[<
ffffffff81062551>] raw_notifier_call_chain+0x11/0x20
[<
ffffffff8137df82>] call_netdevice_notifiers+0x32/0x60
[<
ffffffff8137e69f>] rollback_registered_many+0x10f/0x240
[<
ffffffff8137e85f>] rollback_registered+0x2f/0x40
[<
ffffffff8137e8c8>] unregister_netdevice_queue+0x58/0x90
[<
ffffffff8137e9eb>] unregister_netdev+0x1b/0x30
[<
ffffffffa005d73f>] tg3_remove_one+0x6f/0x10b [tg3]
We should call vlan_gvrp_request_leave() from unregister_vlan_dev(),
not from vlan_dev_stop(), because vlan_gvrp_uninit_applicant()
is called right after unregister_netdevice_queue(). In batch mode,
unregister_netdevice_queue() doesn’t immediately call vlan_dev_stop().
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Tue, 10 May 2011 19:00:53 +0000 (12:00 -0700)]
Merge branch 'upstream' of git://git.linux-mips.org/upstream-linus
* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus: (28 commits)
MIPS: Alchemy: fix xxs1500 build error
MIPS: Invalidate old TLB mappings when updating huge page PTEs.
MIPS: Hibernation: Fixes for PAGE_SIZE >= 64kb
MIPS: JZ4740: Set one-shot feature flag for the clockevent
MIPS: JZ4740: Export symbols to the watchdog driver module
MIPS: JZ4740: Fix GCC 4.6.0 build error.
MIPS: Audit: Fix success success argument pass to audit_syscall_exit
MIPS: Fix calc_vmlinuz_load_addr build warnings.
MIPS: Alchemy: Fix GCC 4.6.0 build error.
MIPS: Document former use of timerfd(2) syscall number.
MIPS: IP27: Fix GCC 4.6.0 build error.
MIPS: IP27: Fix GCC 4.6.0 build error.
MIPS: bcm63xx: Fix header_crc comment in bcm963xx_tag.h
MIPS: Octeon: Guard the Kconfig body with CPU_CAVIUM_OCTEON
MIPS: Octeon: Cleanup Kconfig IRQ_CPU* symbols.
MIPS: Rename .data..mostly and properly handle it in linker script
MIPS: MSP: Fix build error
MIPS: MSP71xx: Fix typo in msp_per_irq_controller
MIPS: Loongson: Fix GCC 2.6.0 build error.
MIPS: Jazz: Fix GCC 4.6.0 build error
...
Linus Torvalds [Tue, 10 May 2011 18:56:35 +0000 (11:56 -0700)]
Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
* 'for-linus' of git://oss.sgi.com/xfs/xfs:
xfs: fix race condition in AIL push trigger
xfs: make AIL target updates and compares 32bit safe.
xfs: always push the AIL to the target
xfs: exit AIL push work correctly when AIL is empty
xfs: ensure reclaim cursor is reset correctly at end of AG
Manuel Lauss [Sat, 7 May 2011 11:55:19 +0000 (13:55 +0200)]
MIPS: Alchemy: fix xxs1500 build error
This fixes:
alchemy/xxs1500/init.c: In function 'prom_init':
alchemy/xxs1500/init.c:57:17: error: ignoring return value of 'kstrtoul', declared with attribute warn_unused_result
Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/2340/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
David Daney [Wed, 27 Apr 2011 23:39:28 +0000 (16:39 -0700)]
MIPS: Invalidate old TLB mappings when updating huge page PTEs.
Without this, stale Icache or TLB entries may be used.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
https://patchwork.linux-mips.org/patch/2318/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Wu Zhangjin [Sat, 23 Apr 2011 21:56:59 +0000 (05:56 +0800)]
MIPS: Hibernation: Fixes for PAGE_SIZE >= 64kb
PAGE_SIZE >= 64kb (1 << 16) is too big to be the immediate of the
addiu/daddiu instruction, so, use addu/daddu instruction instead.
The following compiling error is fixed:
AS arch/mips/power/hibernate.o
arch/mips/power/hibernate.S: Assembler messages:
arch/mips/power/hibernate.S:38: Error: expression out of range
make[2]: *** [arch/mips/power/hibernate.o] Error 1
make[1]: *** [arch/mips/power] Error 2
Reported-by: Roman Mamedov <rm@romanrm.ru>
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2313/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Lars-Peter Clausen [Thu, 31 Mar 2011 18:52:20 +0000 (20:52 +0200)]
MIPS: JZ4740: Set one-shot feature flag for the clockevent
The code for supporting one-shot mode for the clockevent is already there,
only the feature flag was not set. Setting the one-shot flag allows the
kernel to run in tickless mode.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2261/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Mon, 18 Apr 2011 10:19:32 +0000 (11:19 +0100)]
MIPS: JZ4740: Export symbols to the watchdog driver module
MODPOST 356 modules
ERROR: "jz4740_timer_disable_watchdog" [drivers/watchdog/jz4740_wdt.ko] undefine
d!
ERROR: "jz4740_timer_enable_watchdog" [drivers/watchdog/jz4740_wdt.ko] undefined
!
make[1]: *** [__modpost] Error 1
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Mon, 18 Apr 2011 10:16:42 +0000 (11:16 +0100)]
MIPS: JZ4740: Fix GCC 4.6.0 build error.
CC arch/mips/jz4740/dma.o
arch/mips/jz4740/dma.c: In function 'jz4740_dma_chan_irq':
arch/mips/jz4740/dma.c:245:11: error: variable 'status' set but not used [-Werro
r=unused-but-set-variable]
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Wed, 13 Apr 2011 21:51:23 +0000 (23:51 +0200)]
MIPS: Audit: Fix success success argument pass to audit_syscall_exit
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Wed, 13 Apr 2011 19:49:54 +0000 (21:49 +0200)]
MIPS: Fix calc_vmlinuz_load_addr build warnings.
HOSTCC arch/mips/boot/compressed/calc_vmlinuz_load_addr
arch/mips/boot/compressed/calc_vmlinuz_load_addr.c: In function 'main':
arch/mips/boot/compressed/calc_vmlinuz_load_addr.c:35:2: warning: format '%llx' expects type 'long long unsigned int *', but argument 3 has type 'uint64_t *'
arch/mips/boot/compressed/calc_vmlinuz_load_addr.c:54:2: warning: format '%llx' expects type 'long long unsigned int', but argument 2 has type 'uint64_t'
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Wed, 13 Apr 2011 19:15:09 +0000 (21:15 +0200)]
MIPS: Alchemy: Fix GCC 4.6.0 build error.
CC arch/mips/alchemy/devboards/db1x00/board_setup.o
arch/mips/alchemy/devboards/db1x00/board_setup.c: In function 'board_setup':
arch/mips/alchemy/devboards/db1x00/board_setup.c:130:6: error: variable 'pin_func' set but not used [-Werror=unused-but-set-variable]
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Wed, 13 Apr 2011 18:50:46 +0000 (20:50 +0200)]
MIPS: Document former use of timerfd(2) syscall number.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Mon, 11 Apr 2011 09:48:31 +0000 (11:48 +0200)]
MIPS: IP27: Fix GCC 4.6.0 build error.
CC arch/mips/sgi-ip27/ip27-hubio.o
arch/mips/sgi-ip27/ip27-hubio.c: In function 'hub_pio_map':
arch/mips/sgi-ip27/ip27-hubio.c:32:20: error: variable 'junk' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Mon, 11 Apr 2011 09:37:15 +0000 (11:37 +0200)]
MIPS: IP27: Fix GCC 4.6.0 build error.
CC arch/mips/sgi-ip27/ip27-hubio.o
arch/mips/sgi-ip27/ip27-hubio.c: In function 'hub_pio_map':
arch/mips/sgi-ip27/ip27-hubio.c:32:20: error: variable 'junk' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Jonas Gorski [Fri, 8 Apr 2011 12:32:15 +0000 (14:32 +0200)]
MIPS: bcm63xx: Fix header_crc comment in bcm963xx_tag.h
The CRC32 actually includes the tag_version.
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2275/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
David Daney [Fri, 18 Feb 2011 02:23:32 +0000 (18:23 -0800)]
MIPS: Octeon: Guard the Kconfig body with CPU_CAVIUM_OCTEON
Instead of making each Octeon specific option depend on
CPU_CAVIUM_OCTEON, gate the body of the entire file with
CPU_CAVIUM_OCTEON. With this change, CAVIUM_OCTEON_SPECIFIC_OPTIONS
becomes useless, so get rid of it as well.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2091/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
David Daney [Thu, 17 Feb 2011 22:04:33 +0000 (14:04 -0800)]
MIPS: Octeon: Cleanup Kconfig IRQ_CPU* symbols.
Octeon doesn't use IRQ_CPU, so don't select it.
IRQ_CPU_OCTEON is a completely unused symbol, remove it completely.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2086/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Catalin Marinas [Tue, 29 Mar 2011 10:40:06 +0000 (11:40 +0100)]
MIPS: Rename .data..mostly and properly handle it in linker script
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Tue, 29 Mar 2011 14:09:25 +0000 (16:09 +0200)]
MIPS: MSP: Fix build error
Reported and original patch by Yoichi Yuasa <yuasa@linux-mips.org>.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Yoichi Yuasa [Tue, 29 Mar 2011 06:53:56 +0000 (15:53 +0900)]
MIPS: MSP71xx: Fix typo in msp_per_irq_controller
CC arch/mips/pmc-sierra/msp71xx/msp_irq_per.o
arch/mips/pmc-sierra/msp71xx/msp_irq_per.c:101:2: error: expected identifier before '.' token
make[2]: *** [arch/mips/pmc-sierra/msp71xx/msp_irq_per.o] Error 1
Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/2246/
Cc: linux-mips <linux-mips@linux-mips.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Tue, 29 Mar 2011 10:32:55 +0000 (12:32 +0200)]
MIPS: Loongson: Fix GCC 2.6.0 build error.
CC arch/mips/loongson/common/env.o
arch/mips/loongson/common/env.c: In function 'prom_init_env':
arch/mips/loongson/common/env.c:50:12: error: variable 'ret' set but not used [-Werror=unused-but-set-variable]
arch/mips/loongson/common/env.c:51:12: error: variable 'ret' set but not used [-Werror=unused-but-set-variable]
arch/mips/loongson/common/env.c:52:12: error: variable 'ret' set but not used [-Werror=unused-but-set-variable]
arch/mips/loongson/common/env.c:53:12: error: variable 'ret' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Tue, 29 Mar 2011 10:09:51 +0000 (12:09 +0200)]
MIPS: Jazz: Fix GCC 4.6.0 build error
CC arch/mips/jazz/jazzdma.o
arch/mips/jazz/jazzdma.c: In function 'vdma_remap':
arch/mips/jazz/jazzdma.c:214:20: error: variable 'npages' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Tue, 29 Mar 2011 09:57:11 +0000 (11:57 +0200)]
MIPS: SNI: Fix GCC 4.6.0 build error
CC arch/mips/sni/time.o
arch/mips/sni/time.c: In function 'dosample':
arch/mips/sni/time.c:98:19: error: variable 'lsb' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Tue, 29 Mar 2011 09:48:22 +0000 (11:48 +0200)]
MIPS: Malta: Fix GCC 4.6.0 build error
CC arch/mips/mti-malta/malta-int.o
arch/mips/mti-malta/malta-int.c: In function 'mips_pcibios_iack':
arch/mips/mti-malta/malta-int.c:59:6: error: variable 'dummy' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Tue, 29 Mar 2011 09:43:19 +0000 (11:43 +0200)]
MIPS: Malta: Fix GCC 4.6.0 build error
CC arch/mips/mti-malta/malta-init.o
arch/mips/mti-malta/malta-init.c: In function 'prom_init':
arch/mips/mti-malta/malta-init.c:196:6: error: variable 'result' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Tue, 29 Mar 2011 09:06:49 +0000 (11:06 +0200)]
MIPS: IP22: Fix GCC 4.6.0 build error
CC arch/mips/sgi-ip22/ip22-platform.o
arch/mips/sgi-ip22/ip22-platform.c: In function 'sgiseeq_devinit':
arch/mips/sgi-ip22/ip22-platform.c:135:15: error: variable 'tmp' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors
While at it rename the variable to pbdma for readability; there is a
local variable tmp of different type being used in two nested blocks.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Tue, 29 Mar 2011 09:00:44 +0000 (11:00 +0200)]
MIPS: IP22: Fix GCC 4.6.0 build error
CC arch/mips/sgi-ip22/ip22-time.o
arch/mips/sgi-ip22/ip22-time.c: In function 'dosample':
arch/mips/sgi-ip22/ip22-time.c:35:10: error: variable 'lsb' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Tue, 29 Mar 2011 08:54:54 +0000 (10:54 +0200)]
MIPS: tlbex: Fix GCC 4.6.0 build error
CC arch/mips/mm/tlbex.o
arch/mips/mm/tlbex.c: In function 'build_r4000_tlb_refill_handler':
arch/mips/mm/tlbex.c:1155:22: error: variable 'vmalloc_mode' set but not used [-Werror=unused-but-set-variable]
arch/mips/mm/tlbex.c:1154:28: error: variable 'htlb_info' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Tue, 29 Mar 2011 08:50:38 +0000 (10:50 +0200)]
MIPS: c-r4k: Fix GCC 4.6.0 build error
CC arch/mips/mm/c-r4k.o
arch/mips/mm/c-r4k.c: In function 'probe_scache':
arch/mips/mm/c-r4k.c:1078:6: error: variable 'tmp' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors
Older GCC versions didn't warn about the unused variable tmp because it was
getting initialized.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
David Daney [Tue, 28 Dec 2010 21:21:37 +0000 (13:21 -0800)]
MIPS: Mask jump target in ftrace_dyn_arch_init_insns().
The current code is abusing the uasm interface by passing jump target
addresses with high bits set. Mask the addresses to avoid annoying
messages at boot time.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Wu Zhangjin <wuzhangjin@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/1922/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Linus Torvalds [Tue, 10 May 2011 16:41:03 +0000 (09:41 -0700)]
Merge branch 'fixes' of git://git./linux/kernel/git/ryusuke/nilfs2
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2:
nilfs2: fix infinite loop in nilfs_palloc_freev function
Linus Torvalds [Tue, 10 May 2011 16:39:11 +0000 (09:39 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ericvh/v9fs
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
net/9p: Handle get_user_pages_fast return properly
Ryusuke Konishi [Tue, 10 May 2011 11:59:34 +0000 (20:59 +0900)]
nilfs2: fix infinite loop in nilfs_palloc_freev function
After having applied commit
9954e7af14868b8b ("nilfs2: add free
entries count only if clear bit operation succeeded"), a free routine
of nilfs came to fall into an infinite loop, outputting the same
message endlessly:
nilfs_palloc_freev: entry number 29497 already freed
nilfs_palloc_freev: entry number 29497 already freed
nilfs_palloc_freev: entry number 29497 already freed
nilfs_palloc_freev: entry number 29497 already freed
nilfs_palloc_freev: entry number 29497 already freed ...
That patch broke the routine so that a loop counter is never updated
in an abnormal state. This fixes the regression.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Pablo Neira Ayuso [Tue, 10 May 2011 10:13:36 +0000 (12:13 +0200)]
netfilter: revert
a2361c8735e07322023aedc36e4938b35af31eb0
This patch reverts
a2361c8735e07322023aedc36e4938b35af31eb0:
"[PATCH] netfilter: xt_conntrack: warn about use in raw table"
Florian Wesphal says:
"... when the packet was sent from the local machine the skb
already has ->nfct attached, and -m conntrack seems to do
the right thing."
Acked-by: Jan Engelhardt <jengelh@medozas.de>
Reported-by: Florian Wesphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Fernando Luis Vazquez Cao [Tue, 10 May 2011 08:00:21 +0000 (10:00 +0200)]
netfilter: IPv6: fix DSCP mangle code
The mask indicates the bits one wants to zero out, so it needs to be
inverted before applying to the original TOS field.
Signed-off-by: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Fernando Luis Vazquez Cao [Tue, 10 May 2011 07:55:44 +0000 (09:55 +0200)]
netfilter: IPv6: initialize TOS field in REJECT target module
The IPv6 header is not zeroed out in alloc_skb so we must initialize
it properly unless we want to see IPv6 packets with random TOS fields
floating around. The current implementation resets the flow label
but this could be changed if deemed necessary.
We stumbled upon this issue when trying to apply a mangle rule to
the RST packet generated by the REJECT target module.
Signed-off-by: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Hans Schillstrom [Tue, 3 May 2011 20:09:31 +0000 (22:09 +0200)]
IPVS: init and cleanup restructuring
DESCRIPTION
This patch tries to restore the initial init and cleanup
sequences that was before namspace patch.
Netns also requires action when net devices unregister
which has never been implemented. I.e this patch also
covers when a device moves into a network namespace,
and has to be released.
IMPLEMENTATION
The number of calls to register_pernet_device have been
reduced to one for the ip_vs.ko
Schedulers still have their own calls.
This patch adds a function __ip_vs_service_cleanup()
and an enable flag for the netfilter hooks.
The nf hooks will be enabled when the first service is loaded
and never disabled again, except when a namespace exit starts.
Signed-off-by: Hans Schillstrom <hans@schillstrom.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
[horms@verge.net.au: minor edit to changelog]
Signed-off-by: Simon Horman <horms@verge.net.au>
Hans Schillstrom [Tue, 3 May 2011 20:09:30 +0000 (22:09 +0200)]
IPVS: Change of socket usage to enable name space exit.
If the sync daemons run in a name space while it crashes
or get killed, there is no way to stop them except for a reboot.
When all patches are there, ip_vs_core will handle register_pernet_(),
i.e. ip_vs_sync_init() and ip_vs_sync_cleanup() will be removed.
Kernel threads should not increment the use count of a socket.
By calling sk_change_net() after creating a socket this is avoided.
sock_release cant be used intead sk_release_kernel() should be used.
Thanks Eric W Biederman for your advices.
Signed-off-by: Hans Schillstrom <hans@schillstrom.com>
[horms@verge.net.au: minor edit to changelog]
Signed-off-by: Simon Horman <horms@verge.net.au>
Florian Westphal [Thu, 21 Apr 2011 08:58:25 +0000 (10:58 +0200)]
netfilter: ebtables: only call xt_compat_add_offset once per rule
The optimizations in commit
255d0dc34068a976
(netfilter: x_table: speedup compat operations) assume that
xt_compat_add_offset is called once per rule.
ebtables however called it for each match/target found in a rule.
The match/watcher/target parser already returns the needed delta, so it
is sufficient to move the xt_compat_add_offset call to a more reasonable
location.
While at it, also get rid of the unused COMPAT iterator macros.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Eric Dumazet [Thu, 21 Apr 2011 08:57:21 +0000 (10:57 +0200)]
netfilter: fix ebtables compat support
commit
255d0dc34068a976 (netfilter: x_table: speedup compat operations)
made ebtables not working anymore.
1) xt_compat_calc_jump() is not an exact match lookup
2) compat_table_info() has a typo in xt_compat_init_offsets() call
3) compat_do_replace() misses a xt_compat_init_offsets() call
Reported-by: dann frazier <dannf@dannf.org>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Pablo Neira Ayuso [Thu, 21 Apr 2011 08:55:07 +0000 (10:55 +0200)]
netfilter: ctnetlink: fix timestamp support for new conntracks
This patch fixes the missing initialization of the start time if
the timestamp support is enabled.
libnetfilter_conntrack/utils# conntrack -E &
libnetfilter_conntrack/utils# ./conntrack_create
tcp 6 109 ESTABLISHED src=1.1.1.1 dst=2.2.2.2 sport=1025 dport=21 packets=0 bytes=0 [UNREPLIED] src=2.2.2.2 dst=1.1.1.1 sport=21 dport=1025 packets=0 bytes=0 mark=0 delta-time=
1303296401 use=2
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
M. Mohan Kumar [Fri, 15 Apr 2011 08:29:33 +0000 (13:59 +0530)]
net/9p: Handle get_user_pages_fast return properly
Use proper data type to handle get_user_pages_fast error condition. Also
do not treat EFAULT error as fatal.
Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Linus Torvalds [Tue, 10 May 2011 02:33:54 +0000 (19:33 -0700)]
Linux 2.6.39-rc7
Hugh Dickins [Tue, 10 May 2011 00:44:42 +0000 (17:44 -0700)]
vm: fix vm_pgoff wrap in upward expansion
Commit
a626ca6a6564 ("vm: fix vm_pgoff wrap in stack expansion") fixed
the case of an expanding mapping causing vm_pgoff wrapping when you had
downward stack expansion. But there was another case where IA64 and
PA-RISC expand mappings: upward expansion.
This fixes that case too.
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Mon, 9 May 2011 23:59:51 +0000 (16:59 -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/lvds: Only act on lid notify when the device is on
drm/i915: fix intel_crtc_clock_get pipe reads after "cleanup cleanup"
drm/i915: Only enable the plane after setting the fb base (pre-ILK)
drm/i915/dp: Be paranoid in case we disable a DP before it is attached
drm/i915: Release object along create user fb error path
Dave Chinner [Fri, 6 May 2011 02:54:08 +0000 (02:54 +0000)]
xfs: fix race condition in AIL push trigger
The recent conversion of the xfsaild functionality to a work queue
introduced a hard-to-hit log space grant hang. One is caused by a
race condition in determining whether there is a psh in progress or
not.
The XFS_AIL_PUSHING_BIT is used to determine whether a push is
currently in progress. When the AIL push work completes, it checked
whether the target changed and cleared the PUSHING bit to allow a
new push to be requeued. The race condition is as follows:
Thread 1 push work
smp_wmb()
smp_rmb()
check ailp->xa_target unchanged
update ailp->xa_target
test/set PUSHING bit
does not queue
clear PUSHING bit
does not requeue
Now that the push target is updated, new attempts to push the AIL
will not trigger as the push target will be the same, and hence
despite trying to push the AIL we won't ever wake it again.
The fix is to ensure that the AIL push work clears the PUSHING bit
before it checks if the target is unchanged.
As a result, both push triggers operate on the same test/set bit
criteria, so even if we race in the push work and miss the target
update, the thread requesting the push will still set the PUSHING
bit and queue the push work to occur. For safety sake, the same
queue check is done if the push work detects the target change,
though only one of the two will will queue new work due to the use
of test_and_set_bit() checks.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
(cherry picked from commit
e4d3c4a43b595d5124ae824d300626e6489ae857)
Dave Chinner [Fri, 6 May 2011 02:54:07 +0000 (02:54 +0000)]
xfs: make AIL target updates and compares 32bit safe.
The recent conversion of the xfsaild functionality to a work queue
introduced a hard-to-hit log space grant hang. One of the problems
noticed was that updates of the push target are not 32 bit safe as
the target is a 64 bit value.
We cannot copy a 64 bit LSN without the possibility of corrupting
the result when racing with another updating thread. We have
function to do this update safely without needing to care about
32/64 bit issues - xfs_trans_ail_copy_lsn() - so use that when
updating the AIL push target.
Also move the reading of the target in the push work inside the AIL
lock, and use XFS_LSN_CMP() for the unlocked comparison during work
termination to close read holes as well.
Signed-off-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
(cherry picked from commit
fd5670f22fce247754243cf2ed41941e5762d990)
Dave Chinner [Fri, 6 May 2011 02:54:06 +0000 (02:54 +0000)]
xfs: always push the AIL to the target
The recent conversion of the xfsaild functionality to a work queue
introduced a hard-to-hit log space grant hang. One of the problems
discovered is a target mismatch between the item pushing loop and
the target itself.
The push trigger checks for the target increasing (i.e. new target >
current) while the push loop only pushes items that have a LSN <
current. As a result, we can get the situation where the push target
is X, the items at the tail of the AIL have LSN X and they don't get
pushed. The push work then completes thinking it is done, and cannot
be restarted until the push target increases to >= X + 1. If the
push target then never increases (because the tail is not moving),
then we never run the push work again and we stall.
Fix it by making sure log items with a LSN that matches the target
exactly are pushed during the loop.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
(cherry picked from commit
cb64026b6e8af50db598ec7c3f59d504259b00bb)
Dave Chinner [Fri, 6 May 2011 02:54:05 +0000 (02:54 +0000)]
xfs: exit AIL push work correctly when AIL is empty
The recent conversion of the xfsaild functionality to a work queue
introduced a hard-to-hit log space grant hang. The main cause is a
regression where a work exit path fails to clear the PUSHING state
and recheck the target correctly.
Make both exit paths do the same PUSHING bit clearing and target
checking when the "no more work to be done" condition is hit.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
(cherry picked from commit
ea35a20021f8497390d05b93271b4d675516c654)
Dave Chinner [Fri, 6 May 2011 02:54:04 +0000 (02:54 +0000)]
xfs: ensure reclaim cursor is reset correctly at end of AG
On a 32 bit highmem PowerPC machine, the XFS inode cache was growing
without bound and exhausting low memory causing the OOM killer to be
triggered. After some effort, the problem was reproduced on a 32 bit
x86 highmem machine.
The problem is that the per-ag inode reclaim index cursor was not
getting reset to the start of the AG if the radix tree tag lookup
found no more reclaimable inodes. Hence every further reclaim
attempt started at the same index beyond where any reclaimable
inodes lay, and no further background reclaim ever occurred from the
AG.
Without background inode reclaim the VM driven cache shrinker
simply cannot keep up with cache growth, and OOM is the result.
While the change that exposed the problem was the conversion of the
inode reclaim to use work queues for background reclaim, it was not
the cause of the bug. The bug was introduced when the cursor code
was added, just waiting for some weird configuration to strike....
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Tested-By: Christian Kujau <lists@nerdbynature.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
(cherry picked from commit
b223221956675ce8a7b436d198ced974bb388571)
Mikulas Patocka [Mon, 9 May 2011 11:01:09 +0000 (13:01 +0200)]
Don't lock guardpage if the stack is growing up
Linux kernel excludes guard page when performing mlock on a VMA with
down-growing stack. However, some architectures have up-growing stack
and locking the guard page should be excluded in this case too.
This patch fixes lvm2 on PA-RISC (and possibly other architectures with
up-growing stack). lvm2 calculates number of used pages when locking and
when unlocking and reports an internal error if the numbers mismatch.
[ Patch changed fairly extensively to also fix /proc/<pid>/maps for the
grows-up case, and to move things around a bit to clean it all up and
share the infrstructure with the /proc bits.
Tested on ia64 that has both grow-up and grow-down segments - Linus ]
Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Tested-by: Tony Luck <tony.luck@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tomoya [Mon, 9 May 2011 01:19:37 +0000 (01:19 +0000)]
pch_gbe: support ML7223 IOH
Support new device OKI SEMICONDUCTOR ML7223 IOH(Input/Output Hub).
The ML7223 IOH is for MP(Media Phone) use.
The ML7223 is companion chip for Intel Atom E6xx series.
The ML7223 is completely compatible for Intel EG20T PCH.
Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Mon, 9 May 2011 19:00:49 +0000 (12:00 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/mjg59/platform-drivers-x86
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86:
eeepc-laptop: Use ACPI handle to identify rfkill port
[PATCH] sony-laptop: limit brightness range to DSDT provided ones
sony-laptop: report failures on setting LCD brightness
thinkpad-acpi: module autoloading for newer Lenovo ThinkPads.
Toshiharu Okada [Fri, 6 May 2011 02:53:56 +0000 (02:53 +0000)]
PCH_GbE : Fixed the issue of checksum judgment
The checksum judgment was mistaken.
Judgment result
0:Correct 1:Wrong
This patch fixes the issue.
Signed-off-by: Toshiharu Okada <toshiharu-linux@dsn.okisemi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Toshiharu Okada [Fri, 6 May 2011 02:53:51 +0000 (02:53 +0000)]
PCH_GbE : Fixed the issue of collision detection
The collision detection setting was invalid.
When collision occurred, because data was not resent,
there was an issue to which a transmitting throughput falls.
This patch enables the collision detection.
Signed-off-by: Toshiharu Okada <toshiharu-linux@dsn.okisemi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Matvejchikov Ilya [Fri, 6 May 2011 06:23:09 +0000 (06:23 +0000)]
NET: slip, fix ldisc->open retval
TTY layer expects 0 if the ldisc->open operation succeeded.
Signed-off-by : Matvejchikov Ilya <matvejchikov@gmail.com>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Somnath Kotur [Wed, 4 May 2011 22:40:46 +0000 (22:40 +0000)]
be2net: Fixed bugs related to PVID.
Fixed bug to make sure 'pvid' retrieval will work on big endian hosts.
Fixed incorrect comparison between the Rx Completion's 16-bit VLAN TCI
and the PVID. Now comparing only the relevant 12 bits corresponding to
the VID.
Renamed 'vid' field under Rx Completion to 'vlan_tag' to reflect
accurate description.
Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Kleber Sacilotto de Souza [Wed, 4 May 2011 13:05:11 +0000 (13:05 +0000)]
ehea: fix wrongly reported speed and port
Currently EHEA reports to ethtool as supporting 10M, 100M, 1G and
10G and connected to FIBRE independent of the hardware configuration.
However, when connected to FIBRE the only supported speed is 10G
full-duplex, and the other speeds and modes are only supported
when connected to twisted pair.
Signed-off-by: Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com>
Acked-by: Breno Leitao <leitao@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alex Williamson [Thu, 21 Apr 2011 22:08:14 +0000 (16:08 -0600)]
drm/i915/lvds: Only act on lid notify when the device is on
If we're using vga switcheroo, the device may be turned off
and poking it can return random state. This provokes an OOPS fixed
separately by
8ff887c847 (drm/i915/dp: Be paranoid in case we disable a
DP before it is attached). Trying to use and respond to events on a
device that has been turned off by the user is in principle a silly thing
to do.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Signed-off-by: Keith Packard <keithp@keithp.com>
Chris Wilson [Fri, 22 Apr 2011 21:17:21 +0000 (22:17 +0100)]
drm/i915: fix intel_crtc_clock_get pipe reads after "cleanup cleanup"
Despite the fixes in
548f245ba6a31 (drm/i915: fix per-pipe reads after
"cleanup"), we missed one neighbouring read that was mistakenly replaced
with the reg value in
9db4a9c (drm/i915: cleanup per-pipe reg usage).
This was preventing us from correctly determining the mode the BIOS left
the panel in for machines that neither have an OpRegion nor access to
the VBT, (e.g. the EeePC 700).
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: stable@kernel.org
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
Chris Wilson [Tue, 19 Apr 2011 20:14:14 +0000 (21:14 +0100)]
drm/i915: Only enable the plane after setting the fb base (pre-ILK)
When enabling the plane, it is helpful to have already pointed that
plane to valid memory or else we may incur the wrath of a PGTBL_ER.
This code preserved the behaviour from the bad old days for unknown
reasons...
Found by assert_fb_bound_for_plane().
References: https://bugs.freedesktop.org/show_bug.cgi?id=36246
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
Linus Torvalds [Mon, 9 May 2011 16:13:10 +0000 (09:13 -0700)]
Merge branch 'fix/asoc' of git://git./linux/kernel/git/tiwai/sound-2.6
* 'fix/asoc' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ASoC: Fix CODEC DAI names for Goni
ASoC: Fix CODEC name in Goni
davinci-mcasp: fix _CBM_CFS pin directions
davinci-mcasp: fix _CBM_CFS hw_params
davinci-mcasp: use bitfield definitions for PDIR
ASoC: davinci-mcasp: correct tdm_slots limit
Linus Torvalds [Mon, 9 May 2011 16:09:04 +0000 (09:09 -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: add pci id to acer travelmate quirk for 5730
drm/radeon: fix order of doing things in radeon_crtc_cursor_set
drm: mm: fix debug output
drm/radeon/kms: ATPX switcheroo fixes
drm/nouveau: Fix a crash at card takedown for NV40 and older cards
Linus Torvalds [Mon, 9 May 2011 16:07:55 +0000 (09:07 -0700)]
Merge branch 'hpfs'
* hpfs:
HPFS: Remove unused variable
HPFS: Move declaration up, so that there are no out-of-scope pointers
HPFS: Fix some unaligned accesses
HPFS: Fix endianity. Make hpfs work on big-endian machines
HPFS: Implement fsync for hpfs
HPFS: Fix a bug that filesystem was not marked dirty when remounting it
HPFS: Restrict uid and gid to 16-bit values
HPFS: When marking or clearing the dirty bit, sync the filesystem
HPFS: Use types with defined width
HPFS: Remove mark_inode_dirty
HPFS: Remove CR/LF conversion option
HPFS: Remove remaining locks
HPFS: Introduce a global mutex and lock it on every callback from VFS.
HPFS: Make HPFS compile on preempt and SMP
Mikulas Patocka [Sun, 8 May 2011 18:44:46 +0000 (20:44 +0200)]
HPFS: Remove unused variable
Remove unused variable
Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mikulas Patocka [Sun, 8 May 2011 18:44:38 +0000 (20:44 +0200)]
HPFS: Move declaration up, so that there are no out-of-scope pointers
Move declaration up, so that there are no out-of-scope pointers
Reported-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mikulas Patocka [Sun, 8 May 2011 18:44:32 +0000 (20:44 +0200)]
HPFS: Fix some unaligned accesses
Fix some unaligned accesses
Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mikulas Patocka [Sun, 8 May 2011 18:44:26 +0000 (20:44 +0200)]
HPFS: Fix endianity. Make hpfs work on big-endian machines
Fix endianity. Make hpfs work on big-endian machines.
Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mikulas Patocka [Sun, 8 May 2011 18:44:19 +0000 (20:44 +0200)]
HPFS: Implement fsync for hpfs
Implement fsync for hpfs.
Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mikulas Patocka [Sun, 8 May 2011 18:44:08 +0000 (20:44 +0200)]
HPFS: Fix a bug that filesystem was not marked dirty when remounting it
Fix a bug that filesystem was not marked dirty when remounting it
Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mikulas Patocka [Sun, 8 May 2011 18:44:00 +0000 (20:44 +0200)]
HPFS: Restrict uid and gid to 16-bit values
Restrict uid and gid to 16-bit values.
HPFS stores only 2 bytes in the EAs.
Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mikulas Patocka [Sun, 8 May 2011 18:43:41 +0000 (20:43 +0200)]
HPFS: When marking or clearing the dirty bit, sync the filesystem
When marking or clearing the dirty bit, sync the filesystem
Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mikulas Patocka [Sun, 8 May 2011 18:43:34 +0000 (20:43 +0200)]
HPFS: Use types with defined width
Use types with defined width
Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mikulas Patocka [Sun, 8 May 2011 18:43:27 +0000 (20:43 +0200)]
HPFS: Remove mark_inode_dirty
Remove mark_inode_dirty
HPFS doesn't use kernel's dirty inode indicator anyway because
writing an inode requires directory's mutex.
Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mikulas Patocka [Sun, 8 May 2011 18:43:19 +0000 (20:43 +0200)]
HPFS: Remove CR/LF conversion option
Remove CR/LF conversion option
It is unused anyway. It was used on 2.2 kernels or so.
Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mikulas Patocka [Sun, 8 May 2011 18:43:06 +0000 (20:43 +0200)]
HPFS: Remove remaining locks
Remove remaining locks
Because of a new global per-fs lock, no other locks are needed
Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mikulas Patocka [Sun, 8 May 2011 18:42:54 +0000 (20:42 +0200)]
HPFS: Introduce a global mutex and lock it on every callback from VFS.
Introduce a global mutex and lock it on every callback from VFS.
Performance doesn't matter, reviewing the whole code for locking correctness
would be too complicated, so simply lock it all.
Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mikulas Patocka [Sun, 8 May 2011 18:42:44 +0000 (20:42 +0200)]
HPFS: Make HPFS compile on preempt and SMP
Make HPFS compile on preempt and SMP
Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Matthew Garrett [Mon, 9 May 2011 14:44:01 +0000 (10:44 -0400)]
eeepc-laptop: Use ACPI handle to identify rfkill port
The ACPI notification we get from rfkill events on these machines gives
us all the information we need to identify the port that's changed. Do
so rather than assuming that it's always bus 1.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Mattia Dongili [Mon, 9 May 2011 14:20:29 +0000 (10:20 -0400)]
[PATCH] sony-laptop: limit brightness range to DSDT provided ones
The new style brightness control provides an operating range of 9 values
(seems consistent over a large number of models sharing the same
brightness control methods).
Read and use the minimum and maximum values to limit the backlight
interface between those boundaries.
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Mattia Dongili [Tue, 5 Apr 2011 14:38:36 +0000 (23:38 +0900)]
sony-laptop: report failures on setting LCD brightness
Check if we were successful in setting the requested brightness and
report failure in that case.
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Manoj Iyer [Sun, 8 May 2011 22:04:29 +0000 (18:04 -0400)]
thinkpad-acpi: module autoloading for newer Lenovo ThinkPads.
The newer Lenovo ThinkPads have HKEY HID of LEN0068 instead
of IBM0068. Added new HID so that thinkpad_acpi module will
auto load on these newer Lenovo ThinkPads.
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: stable@kernel.org
Signed-off-by: Manoj Iyer <manoj.iyer@canonical.com>
Signed-off-by: Andy Lutomirski <luto@mit.edu>
Signed-off-by: Matthew Garrett <mjg@redhat.com>