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2011-03-22oom: suppress nodes that are not allowed from meminfo on oom killDavid Rientjes1-0/+8
The oom killer is extremely verbose for machines with a large number of cpus and/or nodes. This verbosity can often be harmful if it causes other important messages to be scrolled from the kernel log and incurs a signicant time delay, specifically for kernels with CONFIG_NODES_SHIFT > 8. This patch causes only memory information to be displayed for nodes that are allowed by current's cpuset when dumping the VM state. Information for all other nodes is irrelevant to the oom condition; we don't care if there's an abundance of memory elsewhere if we can't access it. This only affects the behavior of dumping memory information when an oom is triggered. Other dumps, such as for sysrq+m, still display the unfiltered form when using the existing show_mem() interface. Additionally, the per-cpu pageset statistics are extremely verbose in oom killer output, so it is now suppressed. This removes nodes_weight(current->mems_allowed) * (1 + nr_cpus) lines from the oom killer output. Callers may use __show_mem(SHOW_MEM_FILTER_NODES) to filter disallowed nodes. Signed-off-by: David Rientjes <rientjes@google.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: 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>
2011-03-22kthread: NUMA aware kthread_create_on_node()Eric Dumazet2-4/+11
All kthreads being created from a single helper task, they all use memory from a single node for their kernel stack and task struct. This patch suite creates kthread_create_on_node(), adding a 'cpu' parameter to parameters already used by kthread_create(). This parameter serves in allocating memory for the new kthread on its memory node if possible. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: David S. Miller <davem@davemloft.net> Reviewed-by: Andi Kleen <ak@linux.intel.com> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Tejun Heo <tj@kernel.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: David Howells <dhowells@redhat.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-03-22mm: compaction: prevent kswapd compacting memory to reduce CPU usageAndrea Arcangeli1-7/+2
This patch reverts 5a03b051 ("thp: use compaction in kswapd for GFP_ATOMIC order > 0") due to reports stating that kswapd CPU usage was higher and IRQs were being disabled more frequently. This was reported at http://www.spinics.net/linux/fedora/alsa-user/msg09885.html. Without this patch applied, CPU usage by kswapd hovers around the 20% mark according to the tester (Arthur Marsh: http://www.spinics.net/linux/fedora/alsa-user/msg09899.html). With this patch applied, it's around 2%. The problem is not related to THP which specifies __GFP_NO_KSWAPD but is triggered by high-order allocations hitting the low watermark for their order and waking kswapd on kernels with CONFIG_COMPACTION set. The most common trigger for this is network cards configured for jumbo frames but it's also possible it'll be triggered by fork-heavy workloads (order-1) and some wireless cards which depend on order-1 allocations. The symptoms for the user will be high CPU usage by kswapd in low-memory situations which could be confused with another writeback problem. While a patch like 5a03b051 may be reintroduced in the future, this patch plays it safe for now and reverts it. [mel@csn.ul.ie: Beefed up the changelog] Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Mel Gorman <mel@csn.ul.ie> Reported-by: Arthur Marsh <arthur.marsh@internode.on.net> Tested-by: Arthur Marsh <arthur.marsh@internode.on.net> Cc: <stable@kernel.org> [2.6.38.1] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-03-22pwm_backlight: add check_fb() hookRobert Morell1-0/+3
In systems with multiple framebuffer devices, one of the devices might be blanked while another is unblanked. In order for the backlight blanking logic to know whether to turn off the backlight for a particular framebuffer's blanking notification, it needs to be able to check if a given framebuffer device corresponds to the backlight. This plumbs the check_fb hook from core backlight through the pwm_backlight helper to allow platform code to plug in a check_fb hook. Signed-off-by: Robert Morell <rmorell@nvidia.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Arun Murthy <arun.murthy@stericsson.com> Cc: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-03-22backlight: add backlight typeMatthew Garrett1-0/+9
There may be multiple ways of controlling the backlight on a given machine. Allow drivers to expose the type of interface they are providing, making it possible for userspace to make appropriate policy decisions. Signed-off-by: Matthew Garrett <mjg@redhat.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: David Airlie <airlied@linux.ie> Cc: Alex Deucher <alexdeucher@gmail.com> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Len Brown <lenb@kernel.org> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-03-22leds: make *struct gpio_led_platform_data.leds constUwe Kleine-König1-2/+2
And fix a typo. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-03-22leds: add driver for LM3530 ALSShreshtha Kumar Sahu1-0/+107
Simple backlight driver for National Semiconductor LM3530. Presently only manual mode is supported, PWM and ALS support to be added. Signed-off-by: Shreshtha Kumar Sahu <shreshthakumar.sahu@stericsson.com> Cc: Linus Walleij <linus.walleij@stericsson.com> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-03-22include/asm-generic/unistd.h: fix syncfs syscall numberAndrew Morton1-1/+1
syncfs() is duplicating name_to_handle_at() due to a merging mistake. Cc: Sage Weil <sage@newdream.net> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-03-22Merge branch 'slab/urgent' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6 * 'slab/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6: slub: Add statistics for this_cmpxchg_double failures slub: Add missing irq restore for the OOM path
2011-03-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-clientLinus Torvalds4-16/+100
* git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: rbd: use watch/notify for changes in rbd header libceph: add lingering request and watch/notify event framework rbd: update email address in Documentation ceph: rename dentry_release -> d_release, fix comment ceph: add request to the tail of unsafe write list ceph: remove request from unsafe list if it is canceled/timed out ceph: move readahead default to fs/ceph from libceph ceph: add ino32 mount option ceph: update common header files ceph: remove debugfs debug cruft libceph: fix osd request queuing on osdmap updates ceph: preserve I_COMPLETE across rename libceph: Fix base64-decoding when input ends in newline.
2011-03-22tty: stop using "delayed_work" in the tty layerLinus Torvalds2-2/+2
Using delayed-work for tty flip buffers ends up causing us to wait for the next tick to complete some actions. That's usually not all that noticeable, but for certain latency-critical workloads it ends up being totally unacceptable. As an extreme case of this, passing a token back-and-forth over a pty will take two ticks per iteration, so even just a thousand iterations will take 8 seconds assuming a common 250Hz configuration. Avoiding the whole delayed work issue brings that ping-pong test-case down to 0.009s on my machine. In more practical terms, this latency has been a performance problem for things like dive computer simulators (simulating the serial interface using the ptys) and for other environments (Alan mentions a CP/M emulator). Reported-by: Jef Driesen <jefdriesen@telenet.be> Acked-by: Greg KH <gregkh@suse.de> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-03-22slub: Add statistics for this_cmpxchg_double failuresChristoph Lameter1-0/+1
Add some statistics for debugging. Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Pekka Enberg <penberg@kernel.org>
2011-03-22libceph: add lingering request and watch/notify event frameworkYehuda Sadeh1-0/+52
Lingering requests are requests that are sent to the OSD normally but tracked also after we get a successful request. This keeps the OSD connection open and resends the original request if the object moves to another OSD. The OSD can then send notification messages back to us if another client initiates a notify. This framework will be used by RBD so that the client gets notification when a snapshot is created by another node or tool. Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net> Signed-off-by: Sage Weil <sage@newdream.net>
2011-03-22Merge branch 'for-linus/2639/i2c-2' of git://git.fluff.org/bjdooks/linuxLinus Torvalds1-0/+82
* 'for-linus/2639/i2c-2' of git://git.fluff.org/bjdooks/linux: i2c-pxa2xx: Don't clear isr bits too early i2c-pxa2xx: Fix register offsets i2c-pxa2xx: pass of_node from platform driver to adapter and publish i2c-pxa2xx: check timeout correctly i2c-pxa2xx: add support for shared IRQ handler i2c-pxa2xx: Add PCI support for PXA I2C controller ARM: pxa2xx: reorganize I2C files i2c-pxa2xx: use dynamic register layout i2c-mxs: set controller to pio queue mode after reset i2c-eg20t: support new device OKI SEMICONDUCTOR ML7213 IOH i2c/busses: Add support for Diolan U2C-12 USB-I2C adapter
2011-03-22Merge branch 'for-linus' of ↵Linus Torvalds2-3/+6
git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6: slub: Dont define useless label in the !CONFIG_CMPXCHG_LOCAL case slab,rcu: don't assume the size of struct rcu_head slub,rcu: don't assume the size of struct rcu_head slub: automatically reserve bytes at the end of slab Lockless (and preemptless) fastpaths for slub slub: Get rid of slab_free_hook_irq() slub: min_partial needs to be in first cacheline slub: fix ksize() build error slub: fix kmemcheck calls to match ksize() hints Revert "slab: Fix missing DEBUG_SLAB last user" mm: Remove support for kmem_cache_name()
2011-03-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds10-19/+62
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (33 commits) IPVS: Use global mutex in ip_vs_app.c ipvs: fix a typo in __ip_vs_control_init() veth: Fix the byte counters net ipv6: Fix duplicate /proc/sys/net/ipv6/neigh directory entries. macvlan: Fix use after free of struct macvlan_port. net: fix incorrect spelling in drop monitor protocol can: c_can: Do basic c_can configuration _before_ enabling the interrupts net/appletalk: fix atalk_release use after free ipx: fix ipx_release() snmp: SNMP_UPD_PO_STATS_BH() always called from softirq l2tp: fix possible oops on l2tp_eth module unload xfrm: Fix initialize repl field of struct xfrm_state netfilter: ipt_CLUSTERIP: fix buffer overflow netfilter: xtables: fix reentrancy netfilter: ipset: fix checking the type revision at create command netfilter: ipset: fix address ranges at hash:*port* types niu: Rename NIU parent platform device name to fix conflict. r8169: fix a bug in rtl8169_init_phy() bonding: fix a typo in a comment ftmac100: use resource_size() ...
2011-03-21IPVS: Use global mutex in ip_vs_app.cSimon Horman1-2/+0
As part of the work to make IPVS network namespace aware __ip_vs_app_mutex was replaced by a per-namespace lock, ipvs->app_mutex. ipvs->app_key is also supplied for debugging purposes. Unfortunately this implementation results in ipvs->app_key residing in non-static storage which at the very least causes a lockdep warning. This patch takes the rather heavy-handed approach of reinstating __ip_vs_app_mutex which will cover access to the ipvs->list_head of all network namespaces. [ 12.610000] IPVS: Creating netns size=2456 id=0 [ 12.630000] IPVS: Registered protocols (TCP, UDP, SCTP, AH, ESP) [ 12.640000] BUG: key ffff880003bbf1a0 not in .data! [ 12.640000] ------------[ cut here ]------------ [ 12.640000] WARNING: at kernel/lockdep.c:2701 lockdep_init_map+0x37b/0x570() [ 12.640000] Hardware name: Bochs [ 12.640000] Pid: 1, comm: swapper Tainted: G W 2.6.38-kexec-06330-g69b7efe-dirty #122 [ 12.650000] Call Trace: [ 12.650000] [<ffffffff8102e685>] warn_slowpath_common+0x75/0xb0 [ 12.650000] [<ffffffff8102e6d5>] warn_slowpath_null+0x15/0x20 [ 12.650000] [<ffffffff8105967b>] lockdep_init_map+0x37b/0x570 [ 12.650000] [<ffffffff8105829d>] ? trace_hardirqs_on+0xd/0x10 [ 12.650000] [<ffffffff81055ad8>] debug_mutex_init+0x38/0x50 [ 12.650000] [<ffffffff8104bc4c>] __mutex_init+0x5c/0x70 [ 12.650000] [<ffffffff81685ee7>] __ip_vs_app_init+0x64/0x86 [ 12.660000] [<ffffffff81685a3b>] ? ip_vs_init+0x0/0xff [ 12.660000] [<ffffffff811b1c33>] T.620+0x43/0x170 [ 12.660000] [<ffffffff811b1e9a>] ? register_pernet_subsys+0x1a/0x40 [ 12.660000] [<ffffffff81685a3b>] ? ip_vs_init+0x0/0xff [ 12.660000] [<ffffffff81685a3b>] ? ip_vs_init+0x0/0xff [ 12.660000] [<ffffffff811b1db7>] register_pernet_operations+0x57/0xb0 [ 12.660000] [<ffffffff81685a3b>] ? ip_vs_init+0x0/0xff [ 12.670000] [<ffffffff811b1ea9>] register_pernet_subsys+0x29/0x40 [ 12.670000] [<ffffffff81685f19>] ip_vs_app_init+0x10/0x12 [ 12.670000] [<ffffffff81685a87>] ip_vs_init+0x4c/0xff [ 12.670000] [<ffffffff8166562c>] do_one_initcall+0x7a/0x12e [ 12.670000] [<ffffffff8166583e>] kernel_init+0x13e/0x1c2 [ 12.670000] [<ffffffff8128c134>] kernel_thread_helper+0x4/0x10 [ 12.670000] [<ffffffff8128ad40>] ? restore_args+0x0/0x30 [ 12.680000] [<ffffffff81665700>] ? kernel_init+0x0/0x1c2 [ 12.680000] [<ffffffff8128c130>] ? kernel_thread_helper+0x0/0x1global0 Signed-off-by: Simon Horman <horms@verge.net.au> Cc: Ingo Molnar <mingo@elte.hu> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Julian Anastasov <ja@ssi.bg> Cc: Hans Schillstrom <hans@schillstrom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-21snmp: SNMP_UPD_PO_STATS_BH() always called from softirqEric Dumazet1-2/+2
We dont need to test if we run from softirq context, we definitely are. This saves few instructions in ip_rcv() & ip_rcv_finish() Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-21xfrm: Fix initialize repl field of struct xfrm_stateWei Yongjun1-0/+1
Commit 'xfrm: Move IPsec replay detection functions to a separate file' (9fdc4883d92d20842c5acea77a4a21bb1574b495) introduce repl field to struct xfrm_state, and only initialize it under SA's netlink create path, the other path, such as pf_key, ipcomp/ipcomp6 etc, the repl field remaining uninitialize. So if the SA is created by pf_key, any input packet with SA's encryption algorithm will cause panic. int xfrm_input() { ... x->repl->advance(x, seq); ... } This patch fixed it by introduce new function __xfrm_init_state(). Pid: 0, comm: swapper Not tainted 2.6.38-next+ #14 Bochs Bochs EIP: 0060:[<c078e5d5>] EFLAGS: 00010206 CPU: 0 EIP is at xfrm_input+0x31c/0x4cc EAX: dd839c00 EBX: 00000084 ECX: 00000000 EDX: 01000000 ESI: dd839c00 EDI: de3a0780 EBP: dec1de88 ESP: dec1de64 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 Process swapper (pid: 0, ti=dec1c000 task=c09c0f20 task.ti=c0992000) Stack: 00000000 00000000 00000002 c0ba27c0 00100000 01000000 de3a0798 c0ba27c0 00000033 dec1de98 c0786848 00000000 de3a0780 dec1dea4 c0786868 00000000 dec1debc c074ee56 e1da6b8c de3a0780 c074ed44 de3a07a8 dec1decc c074ef32 Call Trace: [<c0786848>] xfrm4_rcv_encap+0x22/0x27 [<c0786868>] xfrm4_rcv+0x1b/0x1d [<c074ee56>] ip_local_deliver_finish+0x112/0x1b1 [<c074ed44>] ? ip_local_deliver_finish+0x0/0x1b1 [<c074ef32>] NF_HOOK.clone.1+0x3d/0x44 [<c074ef77>] ip_local_deliver+0x3e/0x44 [<c074ed44>] ? ip_local_deliver_finish+0x0/0x1b1 [<c074ec03>] ip_rcv_finish+0x30a/0x332 [<c074e8f9>] ? ip_rcv_finish+0x0/0x332 [<c074ef32>] NF_HOOK.clone.1+0x3d/0x44 [<c074f188>] ip_rcv+0x20b/0x247 [<c074e8f9>] ? ip_rcv_finish+0x0/0x332 [<c072797d>] __netif_receive_skb+0x373/0x399 [<c0727bc1>] netif_receive_skb+0x4b/0x51 [<e0817e2a>] cp_rx_poll+0x210/0x2c4 [8139cp] [<c072818f>] net_rx_action+0x9a/0x17d [<c0445b5c>] __do_softirq+0xa1/0x149 [<c0445abb>] ? __do_softirq+0x0/0x149 Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-21Merge branch 'hwmon-for-linus' of ↵Linus Torvalds1-0/+36
git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging * 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: hwmon: (ads1015) Make gain and datarate configurable hwmon: (ads1015) Drop dynamic attribute group hwmon: Add support for Texas Instruments ADS1015 hwmon: New driver for SMSC SCH5627 hwmon: (abituguru*) Update my email address hwmon: (lm75) Speed up detection hwmon: (lm75) Add detection of the National Semiconductor LM75A hp_accel: Fix driver name Move lis3lv02d drivers to drivers/misc Move hp_accel to drivers/platform/x86 Let Kconfig handle lis3lv02d dependencies hwmon: (sht15) Fix integer overflow in humidity calculation hwmon: (sht15) Spelling fix hwmon: (w83795) Document pin mapping
2011-03-21ceph: move readahead default to fs/ceph from libcephSage Weil1-1/+0
Signed-off-by: Sage Weil <sage@newdream.net>
2011-03-21ceph: update common header filesYehuda Sadeh2-13/+45
This updates the common header files used by the different ceph related modules. Specifically it adds definitions required by the rbd watch/notify feature. Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
2011-03-21libceph: fix osd request queuing on osdmap updatesSage Weil1-2/+3
If we send a request to osd A, and the request's pg remaps to osd B and then back to A in quick succession, we need to resend the request to A. The old code was only calling kick_requests after processing all incremental maps in a message, so it was very possible to not resend a request that needed to be resent. This would make the osd eventually time out (at least with the current default of osd timeouts enabled). The correct approach is to scan requests on every map incremental. This patch refactors the kick code in a few ways: - all requests are either on req_lru (in flight), req_unsent (ready to send), or req_notarget (currently map to no up osd) - mapping always done by map_request (previous map_osds) - if the mapping changes, we requeue. requests are resent only after all map incrementals are processed. - some osd reset code is moved out of kick_requests into a separate function - the "kick this osd" functionality is moved to kick_osd_requests, as it is unrelated to scanning for request->pg->osd mapping changes Signed-off-by: Sage Weil <sage@newdream.net>
2011-03-21Merge branch 'for-linus' of ↵Linus Torvalds3-2/+4
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: FS: lookup_mnt() is only used in the core fs routines now bfs: fix bitmap size argument to find_first_zero_bit() fs: Use BUG_ON(!mnt) at dentry_open(). fs: devpts_pty_new() return -ENOMEM if dentry allocation failed nfs: lock() vs unlock() typo pstore: fix leaking ->i_private introduce sys_syncfs to sync a single file system Small typo fix... Filesystem: fifo: Fixed coding style issue. fs/inode: Fix kernel-doc format for inode_init_owner select: remove unused MAX_SELECT_SECONDS vfs: cleanup do_vfs_ioctl()
2011-03-21Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: firewire: core: ignore link-active bit of new nodes, fix device recognition firewire: sbp2: revert obsolete 'fix stall with "Unsolicited response"' firewire: core: increase default SPLIT_TIMEOUT value firewire: ohci: Misleading kfree in ohci.c::pci_probe/remove firewire: ohci: omit IntEvent.busReset check rom AT queueing firewire: ohci: prevent starting of iso contexts with empty queue firewire: ohci: prevent iso completion callbacks after context stop firewire: core: rename some variables firewire: nosy: should work on Power Mac G4 PCI too firewire: core: fix card->reset_jiffies overflow firewire: cdev: remove unneeded reference firewire: cdev: always wait for outbound transactions to complete firewire: cdev: remove unneeded idr_find() from complete_transaction() firewire: ohci: log dead DMA contexts
2011-03-21hwmon: (ads1015) Make gain and datarate configurableDirk Eibach1-1/+9
Configuration for ads1015 gain and datarate is possible via devicetree or platform data. This is a followup patch to previous ads1015 patches on Jean Delvares tree. Signed-off-by: Dirk Eibach <eibach@gdsys.de> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2011-03-21hwmon: Add support for Texas Instruments ADS1015Dirk Eibach1-0/+28
Signed-off-by: Dirk Eibach <eibach@gdsys.de> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2011-03-21FS: lookup_mnt() is only used in the core fs routines nowDavid Howells1-1/+0
lookup_mnt() is only used in the core fs routines now, so it doesn't need to be globally declared anymore. It isn't exported to modules at the moment, so nothing that can be modularised seems to be using it. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-03-21ARM: pxa2xx: reorganize I2C filesSebastian Andrzej Siewior1-0/+82
This patch moves the platform data definition from arch/arm/plat-pxa/include/plat/i2c.h to include/linux/i2c/pxa-i2c.h so it can be accessed from x86 the same way as on ARM. This change should make no functional change to the PXA code. The move is verified by building the following defconfigs: cm_x2xx_defconfig corgi_defconfig em_x270_defconfig ezx_defconfig imote2_defconfig pxa3xx_defconfig spitz_defconfig zeus_defconfig raumfeld_defconfig magician_defconfig mmp2_defconfig pxa168_defconfig pxa910_defconfig Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2011-03-21introduce sys_syncfs to sync a single file systemSage Weil2-1/+4
It is frequently useful to sync a single file system, instead of all mounted file systems via sync(2): - On machines with many mounts, it is not at all uncommon for some of them to hang (e.g. unresponsive NFS server). sync(2) will get stuck on those and may never get to the one you do care about (e.g., /). - Some applications write lots of data to the file system and then want to make sure it is flushed to disk. Calling fsync(2) on each file introduces unnecessary ordering constraints that result in a large amount of sub-optimal writeback/flush/commit behavior by the file system. There are currently two ways (that I know of) to sync a single super_block: - BLKFLSBUF ioctl on the block device: That also invalidates the bdev mapping, which isn't usually desirable, and doesn't work for non-block file systems. - 'mount -o remount,rw' will call sync_filesystem as an artifact of the current implemention. Relying on this little-known side effect for something like data safety sounds foolish. Both of these approaches require root privileges, which some applications do not have (nor should they need?) given that sync(2) is an unprivileged operation. This patch introduces a new system call syncfs(2) that takes an fd and syncs only the file system it references. Maybe someday we can $ sync /some/path and not get sync: ignoring all arguments The syscall is motivated by comments by Al and Christoph at the last LSF. syncfs(2) seems like an appropriate name given statfs(2). A similar ioctl was also proposed a while back, see http://marc.info/?l=linux-fsdevel&m=127970513829285&w=2 Signed-off-by: Sage Weil <sage@newdream.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-03-20Merge branch 'i2c-for-linus' of ↵Linus Torvalds2-46/+9
git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging * 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: i2c-i801: SMBus patch for Intel DH89xxCC DeviceIDs i2c: Drop i2c_adapter.id i2c: Deprecate i2c_driver.attach_adapter and .detach_adapter i2c-dev: Use standard bus notification mechanism i2c: Export i2c_for_each_dev i2c: Get rid of <linux/i2c-id.h> i2c: Minor fixes to upgrading-clients document i2c: make i2c_get_adapter prototype clearer i2c: Fix typo in instantiating-devices document i2c-boardinfo: Fix typo in comment
2011-03-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tileLinus Torvalds1-1/+3
* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: asm-generic: support clock_adjtime() in <asm-generic/unistd.h> arch/tile: fix futex sanitization definition/prototype mismatch
2011-03-20Merge branch 'slub/lockless' into for-linusPekka Enberg3-15/+155
Conflicts: include/linux/slub_def.h
2011-03-20Merge branch 'slab/next' into for-linusPekka Enberg2-1/+1
2011-03-20netfilter: ipset: fix address ranges at hash:*port* typesJozsef Kadlecsik1-0/+10
The hash:*port* types with IPv4 silently ignored when address ranges with non TCP/UDP were added/deleted from the set and used the first address from the range only. Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: Patrick McHardy <kaber@trash.net>
2011-03-20i2c: Drop i2c_adapter.idJean Delvare1-1/+0
There is no user left of i2c_adapter.id, so we can get rid of it. Finally! :) Signed-off-by: Jean Delvare <khali@linux-fr.org>
2011-03-20i2c: Deprecate i2c_driver.attach_adapter and .detach_adapterJean Delvare1-6/+6
The last legitimate user of i2c_driver.attach_adapter and .detach_adapter is gone, so we can finally deprecate these callbacks. The last few drivers which still use these will have to be updated to make use of standard I2C device instantiation ways instead. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2011-03-20i2c: Export i2c_for_each_devJean Delvare1-0/+2
Introduce i2c_for_each_dev(), an i2c device iterator with proper locking for use by i2c-dev. This is needed so that we can get rid of the attach_adapter and detach_adapter legacy callback functions. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2011-03-20i2c: Get rid of <linux/i2c-id.h>Jean Delvare2-38/+0
The last remaining ID in <linux/i2c-id.h> is no longer used anywhere, so we can finally get rid of it. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2011-03-20i2c: make i2c_get_adapter prototype clearerJean Delvare1-1/+1
Rename the parameter of i2c_get_adapter() to "nr", to make it clear we are passing an adapter number and not an adapter ID (which have gone away by now.) Signed-off-by: Jean Delvare <khali@linux-fr.org>
2011-03-19Merge branch 'for-linus' of ↵Linus Torvalds6-26/+69
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (64 commits) Input: tsc2005 - remove 'disable' sysfs attribute Input: tsc2005 - add open/close Input: tsc2005 - handle read errors from SPI layer Input: tsc2005 - do not rearm timer in hardirq handler Input: tsc2005 - don't use work for 'pen up' handling Input: tsc2005 - do not use 0 in place of NULL Input: tsc2005 - use true/false for boolean variables Input: tsc2005 - hide selftest attribute if we can't reset Input: tsc2005 - rework driver initialization code Input: tsc2005 - set up bus type in input device Input: tsc2005 - set up parent device Input: tsc2005 - clear driver data after unbinding Input: tsc2005 - add module description Input: tsc2005 - remove driver banner message Input: tsc2005 - remove incorrect module alias Input: tsc2005 - convert to using dev_pm_ops Input: tsc2005 - use spi_get/set_drvdata() Input: introduce tsc2005 driver Input: xen-kbdfront - move to drivers/input/misc Input: xen-kbdfront - add grant reference for shared page ...
2011-03-20asm-generic: support clock_adjtime() in <asm-generic/unistd.h>Chris Metcalf1-1/+3
A syscall was added without being added to asm-generic, which makes tile (and presumably score and unicore32) break. Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Chen Liqin <liqin.chen@sunplusct.com> Cc: Lennox Wu <lennox.wu@gmail.com>
2011-03-18Merge branch 'next' into for-linusDmitry Torokhov524-4789/+12998
2011-03-18Merge branch 'for-linus' of ↵Linus Torvalds2-23/+10
git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2: nilfs2: move NILFS_SUPER_MAGIC to linux/magic.h nilfs2: get rid of nilfs_sb_info structure nilfs2: use sb instance instead of nilfs_sb_info struct nilfs2: get rid of sc_sbi back pointer nilfs2: move log writer onto nilfs object nilfs2: move next generation counter into nilfs object nilfs2: move s_inode_lock and s_dirty_files into nilfs object nilfs2: move parameters on nilfs_sb_info into nilfs object nilfs2: move mount options to nilfs object nilfs2: record used amount of each checkpoint in checkpoint list nilfs2: optimize rec_len functions nilfs2: append blocksize info to warnings during loading super blocks nilfs2: add compat ioctl nilfs2: implement FS_IOC_GETFLAGS/SETFLAGS/GETVERSION nilfs2: tighten restrictions on inode flags nilfs2: mark S_NOATIME on inodes only if NOATIME attribute is set nilfs2: use common file attribute macros nilfs2: add free entries count only if clear bit operation succeeded nilfs2: decrement inodes count only if raw inode was successfully deleted
2011-03-18Merge branch 'for-linus' of ↵Linus Torvalds4-5/+20
git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (53 commits) mmc: dw_mmc: support mmc power control with regulator mmc: dw_mmc: fix suspend/resume operation mmc: dw_mmc: add quirks for unreliable card detect, and capabilities mmc: tmio: fix address in kunmap_atomic() calls mmc: core: reset card voltage after power off mmc: core: export function mmc_do_release_host() mmc: sdio: remember new card RCA when redetecting card mmc: dw_mmc: Remove set-but-unused variable. mmc: sdhci-esdhc-imx: add card detect on custom GPIO for mx25/35 mmc: sdhci-esdhc: broken card detection is not a default quirk mmc: sdhci-esdhc-imx: add write protect on custom GPIO on mx25/35 mmc: msm_sdcc: remove needless cache flush after dma_unmap_sg() mmc: sh_mmcif: support aggressive clock gating mmc: check if mmc cards < 2GB do sector addressing mmc: core: comment on why sdio_reset is done at init time mmc: dw_mmc: support DDR mode mmc: via-sdmmc: Remove set-but-unused variable. mmc: cb710: Return err value in cb710_wait_while_busy() mmc: sdhci-pci: Remove set-but-unused variable. mmc: mxs-mmc: add mmc host driver for i.MX23/28 ...
2011-03-18headers: use __aligned_xx types for userspaceMike Frysinger5-15/+15
Now that we finally have __aligned_xx exported to userspace, convert the headers that get exported over to the proper type. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-18ethtool: Compat handling for struct ethtool_rxnfcBen Hutchings1-0/+34
This structure was accidentally defined such that its layout can differ between 32-bit and 64-bit processes. Add compat structure definitions and an ioctl wrapper function. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Acked-by: Alexander Duyck <alexander.h.duyck@intel.com> Cc: stable@kernel.org [2.6.30+] Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-18Merge branch 'linux-next' of ↵Linus Torvalds2-0/+8
git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 * 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: PCI: label: remove #include of ACPI header to avoid warnings PCI: label: Fix compilation error when CONFIG_ACPI is unset PCI: pre-allocate additional resources to devices only after successful allocation of essential resources. PCI: introduce reset_resource() PCI: data structure agnostic free list function PCI: refactor io size calculation code PCI: do not create quirk I/O regions below PCIBIOS_MIN_IO for ICH PCI hotplug: acpiphp: set current_state to D0 in register_slot PCI: Export ACPI _DSM provided firmware instance number and string name to sysfs PCI: add more checking to ICH region quirks PCI: aer-inject: Override PCIe AER Mask Registers PCI: fix tlan build when CONFIG_PCI is not enabled PCI: remove quirk for pre-production systems PCI: Avoid potential NULL pointer dereference in pci_scan_bridge PCI/lpc: irq and pci_ids patch for Intel DH89xxCC DeviceIDs PCI: sysfs: Fix failure path for addition of "vpd" attribute
2011-03-18Merge branch 'spi/next' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds3-239/+29
* 'spi/next' of git://git.secretlab.ca/git/linux-2.6: (34 commits) spi/dw_spi: move dw_spi.h into drivers/spi spi/dw_spi: Fix missing header gpio/langwell: Clear edge bit before handling gpio/langwell: Simplify demux loop gpio/langwell: Convert irq name space gpio/langwell: Fix broken irq_eoi change. gpio; Make Intel chipset gpio drivers depend on x86 gpio/cs5535-gpio: Fix section mismatch spi/rtc-{ds1390,ds3234,m41t94}: Use spi_get_drvdata() for SPI devices spi/davinci: Support DMA transfers larger than 65535 words spi/davinci: Use correct length parameter to dma_map_single calls gpio: Use __devexit at necessary places gpio: add MODULE_DEVICE_TABLE to pch_gpio and ml_ioh_gpio gpio/mcp23s08: support mcp23s17 variant of_mmc_spi: add card detect irq support spi/omap_mcspi: catch xfers of non-multiple SPI word size spi/omap_mcspi: Off-by-one error in finding the right divisor gpio/pca953x: Fix wrong pointer type spi/pl022: rid dangling labels spi: add support for SuperH SPI ...
2011-03-18Merge branch 'for-linus' of ↵Linus Torvalds3-3/+2
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: fs: call security_d_instantiate in d_obtain_alias V2 lose 'mounting_here' argument in ->d_manage() don't pass 'mounting_here' flag to follow_down() change the locking order for namespace_sem fix deadlock in pivot_root() vfs: split off vfsmount-related parts of vfs_kern_mount() Some fixes for pstore kill simple_set_mnt()
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-17 18:37:05 +0000