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2009-05-15Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: Revert "mm: add /proc controls for pdflush threads" viocd: needs to depend on BLOCK block: fix the bio_vec array index out-of-bounds test
2009-05-15Revert "mm: add /proc controls for pdflush threads"Jens Axboe
This reverts commit fafd688e4c0c34da0f3de909881117d374e4c7af. Work is progressing to switch away from pdflush as the process backing for flushing out dirty data. So it seems pointless to add more knobs to control pdflush threads. The original author of the patch did not have any specific use cases for adding the knobs, so we can easily revert this before 2.6.30 to avoid having to maintain this API forever. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-05-12Merge branch 'fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: dma: fix ipu_idmac.c to not discard the last queued buffer ioatdma: fix "ioatdma frees DMA memory with wrong function" ipu_idmac: Use disable_irq_nosync() from within irq handlers. dmatest: fix max channels handling
2009-05-12ioatdma: fix "ioatdma frees DMA memory with wrong function"Maciej Sosnowski
as reported by Alexander Beregalov <a.beregalov@gmail.com> ioatdma 0000:00:08.0: DMA-API: device driver frees DMA memory with wrong function [device address=0x000000007f76f800] [size=2000 bytes] [map ped as single] [unmapped as page] The ioatdma driver was unmapping all regions (either allocated as page or single) using unmap_page. This patch lets dma driver recognize if unmap_single or unmap_page should be used. It introduces two new dma control flags: DMA_COMPL_SRC_UNMAP_SINGLE and DMA_COMPL_DEST_UNMAP_SINGLE. They should be set to indicate dma driver to do dma-unmapping as single (first one for the source, tha latter for the destination). If respective flag is not set, the driver assumes dma-unmapping as page. Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Reported-by: Alexander Beregalov <a.beregalov@gmail.com> Tested-by: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-05-12syscalls.h add the missing sys_pipe2 declarationArnd Bergmann
In order to build the generic syscall table, we need a declaration for every system call. sys_pipe2 was added without a proper declaration, so add this to syscalls.h now. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Ulrich Drepper <drepper@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-05-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: Revert driver core: move platform_data into platform_device Revert driver core: fix passing platform_data Remove old PRINTK_DEBUG config item Doc/sysfs-rules: Swap the order of the words so the sentence makes more sense Driver core: platform: fix kernel-doc warnings
2009-05-10Merge branch 'for-linus' of ↵Linus Torvalds
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: (22 commits) Fix the race between capifs remount and node creation Fix races around the access to ->s_options switch ufs directories to ufs_sync_file() Switch open_exec() and sys_uselib() to do_open_filp() Make open_exec() and sys_uselib() use may_open(), instead of duplicating its parts Reduce path_lookup() abuses Make checkpatch.pl shut up on fs/inode.c NULL noise in fs/super.c:kill_bdev_super() romfs: cleanup romfs_fs.h ROMFS: romfs_dev_read() error ignored fs: dcache fix LRU ordering ocfs2: Use nd_set_link(). Fix deadlock in ipathfs ->get_sb() Fix a leak in failure exit in 9p ->get_sb() Convert obvious places to deactivate_locked_super() New helper: deactivate_locked_super() reiserfs: remove privroot hiding in lookup reiserfs: dont associate security.* with xattr files reiserfs: fixup xattr_root caching Always lookup priv_root on reiserfs mount and keep it ...
2009-05-10Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: hda - Fix line-in on Mac Mini Core2 Duo ALSA: Release v1.0.20 sound: via82xx: fix DXS volume range sound: serial-u16550: fix buffer overflow ASoC: Fix errors in WM8990
2009-05-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (26 commits) bonding: fix panic if initialization fails IXP4xx: complete Ethernet netdev setup before calling register_netdev(). IXP4xx: use "ENODEV" instead of "ENOSYS" in module initialization. ipvs: Fix IPv4 FWMARK virtual services ipv4: Make INET_LRO a bool instead of tristate. net: remove stale reference to fastroute from Kconfig help text net: update skb_recycle_check() for hardware timestamping changes bnx2: Fix panic in bnx2_poll_work(). net-sched: fix bfifo default limit igb: resolve panic on shutdown when SR-IOV is enabled wimax: oops: wimax_dev_add() is the only one that can initialize the state wimax: fix oops if netlink fails to add attribute Bluetooth: Move dev_set_name() to a context that can sleep netfilter: ctnetlink: fix wrong message type in user updates netfilter: xt_cluster: fix use of cluster match with 32 nodes netfilter: ip6t_ipv6header: fix match on packets ending with NEXTHDR_NONE netfilter: add missing linux/types.h include to xt_LED.h mac80211: pid, fix memory corruption mac80211: minstrel, fix memory corruption cfg80211: fix comment on regulatory hint processing ...
2009-05-10Merge branch 'topic/misc' into for-linusTakashi Iwai
* topic/misc: ALSA: Release v1.0.20
2009-05-09Fix races around the access to ->s_optionsAl Viro
Put generic_show_options read access to s_options under rcu_read_lock, split save_mount_options() into "we are setting it the first time" (uses in foo_fill_super()) and "we are relacing and freeing the old one", synchronize_rcu() before kfree() in the latter. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-05-09Switch open_exec() and sys_uselib() to do_open_filp()Al Viro
... and make path_lookup_open() static Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-05-09romfs: cleanup romfs_fs.hChristoph Hellwig
There's no kernel-only content in it anymore, so move it to header-y and remove the superflous #ifdef __KERNEL__. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-05-09New helper: deactivate_locked_super()Al Viro
Does equivalent of up_write(&s->s_umount); deactivate_super(s); However, it does not does not unlock it until it's all over. As the result, it's safe to use to dispose of new superblock on ->get_sb() failure exits - nobody will see the sucker until it's all over. Equivalent using up_write/deactivate_super is safe for that purpose if superblock is either safe to use or has NULL ->s_root when we unlock. Normally filesystems take the required precautions, but a) we do have bugs in that area in some of them. b) up_write/deactivate_super sequence is extremely common, so the helper makes sense anyway. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-05-09reiserfs: remove privroot hiding in lookupJeff Mahoney
With Al Viro's patch to move privroot lookup to fs mount, there's no need to have special code to hide the privroot in reiserfs_lookup. I've also cleaned up the privroot hiding in reiserfs_readdir_dentry and removed the last user of reiserfs_xattrs(). Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-05-09reiserfs: fixup xattr_root cachingJeff Mahoney
The xattr_root caching was broken from my previous patch set. It wouldn't cause corruption, but could cause decreased performance due to allocating a larger chunk of the journal (~ 27 blocks) than it would actually use. This patch loads the xattr root dentry at xattr initialization and creates it on-demand. Since we're using the cached dentry, there's no point in keeping lookup_or_create_dir around, so that's removed. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-05-09Always lookup priv_root on reiserfs mount and keep itAl Viro
... even if it's a negative dentry. That way we can set ->d_op on root before anyone could race with us. Simplify d_compare(), while we are at it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-05-08Revert driver core: move platform_data into platform_deviceGreg Kroah-Hartman
This reverts commit 006f4571a15fae3a0575f2a0f9e9b63b3d1012f8: This patch moves platform_data from struct device into struct platform_device, based on the two ideas: 1. Now all platform_driver is registered by platform_driver_register, which makes probe()/release()/... of platform_driver passed parameter of platform_device *, so platform driver can get platform_data from platform_device; 2. Other kind of devices do not need to use platform_data, we can decrease size of device if moving it to platform_device. Taking into consideration of thousands of files to be fixed and they can't be finished in one night(maybe it will take a long time), so we keep platform_data in device to allow two kind of cases coexist until all platform devices pass its platfrom data from platform_device->platform_data. All patches to do this kind of conversion are welcome. As we don't really want to do it, it was a bad idea. Cc: David Brownell <david-b@pacbell.net> Cc: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-05-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: (32 commits) [CIFS] Fix double list addition in cifs posix open code [CIFS] Allow raw ntlmssp code to be enabled with sec=ntlmssp [CIFS] Fix SMB uid in NTLMSSP authenticate request [CIFS] NTLMSSP reenabled after move from connect.c to sess.c [CIFS] Remove sparse warning [CIFS] remove checkpatch warning [CIFS] Fix final user of old string conversion code [CIFS] remove cifs_strfromUCS_le [CIFS] NTLMSSP support moving into new file, old dead code removed [CIFS] Fix endian conversion of vcnum field [CIFS] Remove trailing whitespace [CIFS] Remove sparse endian warnings [CIFS] Add remaining ntlmssp flags and standardize field names [CIFS] Fix build warning cifs: fix length handling in cifs_get_name_from_search_buf [CIFS] Remove unneeded QuerySymlink call and fix mapping for unmapped status [CIFS] rename cifs_strndup to cifs_strndup_from_ucs Added loop check when mounting DFS tree. Enable dfs submounts to handle remote referrals. [CIFS] Remove older session setup implementation ...
2009-05-06Eliminate thousands of warnings with gcc 3.2 buildAndi Kleen
When building with gcc 3.2 I get thousands of warnings such as include/linux/gfp.h: In function `allocflags_to_migratetype': include/linux/gfp.h:105: warning: null format string due to passing a NULL format string to warn_slowpath() in #define __WARN() warn_slowpath(__FILE__, __LINE__, NULL) Split this case out into a separate call. This also shrinks the kernel slightly: text data bss dec hex filename 4802274 707668 712704 6222646 5ef336 vmlinux text data bss dec hex filename 4799027 703572 712704 6215303 5ed687 vmlinux due to removeing one argument from the commonly-called __WARN(). [akpm@linux-foundation.org: reduce scope of `empty'] Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-05-06ALSA: Release v1.0.20Jaroslav Kysela
Signed-off-by: Jaroslav Kysela <perex@perex.cz> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-05-05Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6
2009-05-05netfilter: xt_cluster: fix use of cluster match with 32 nodesPablo Neira Ayuso
This patch fixes a problem when you use 32 nodes in the cluster match: % iptables -I PREROUTING -t mangle -i eth0 -m cluster \ --cluster-total-nodes 32 --cluster-local-node 32 \ --cluster-hash-seed 0xdeadbeef -j MARK --set-mark 0xffff iptables: Invalid argument. Run `dmesg' for more information. % dmesg | tail -1 xt_cluster: this node mask cannot be higher than the total number of nodes The problem is related to this checking: if (info->node_mask >= (1 << info->total_nodes)) { printk(KERN_ERR "xt_cluster: this node mask cannot be " "higher than the total number of nodes\n"); return false; } (1 << 32) is 1. Thus, the checking fails. BTW, I said this before but I insist: I have only tested the cluster match with 2 nodes getting ~45% extra performance in an active-active setup. The maximum limit of 32 nodes is still completely arbitrary. I'd really appreciate if people that have more nodes in their setups let me know. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-05-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (30 commits) e1000: fix virtualization bug bonding: fix alb mode locking regression Bluetooth: Fix issue with sysfs handling for connections usbnet: CDC EEM support (v5) tcp: Fix tcp_prequeue() to get correct rto_min value ehea: fix invalid pointer access ne2k-pci: Do not register device until initialized. Subject: [PATCH] br2684: restore net_dev initialization net: Only store high 16 bits of kernel generated filter priorities virtio_net: Fix function name typo virtio_net: Cleanup command queue scatterlist usage bonding: correct the cleanup in bond_create() virtio: add missing include to virtio_net.h smsc95xx: add support for LAN9512 and LAN9514 smsc95xx: configure LED outputs netconsole: take care of NETDEV_UNREGISTER event xt_socket: checks for the state of nf_conntrack bonding: bond_slave_info_query() fix cxgb3: fixing gcc 4.4 compiler warning: suggest parentheses around operand of ‘!’ netfilter: use likely() in xt_info_rdlock_bh() ...
2009-05-05netfilter: add missing linux/types.h include to xt_LED.hPatrick McHardy
Pointed out by Dave Miller: CHECK include/linux/netfilter (57 files) /home/davem/src/GIT/net-2.6/usr/include/linux/netfilter/xt_LED.h:6: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-05-04Bluetooth: Fix issue with sysfs handling for connectionsMarcel Holtmann
Due to a semantic changes in flush_workqueue() the current approach of synchronizing the sysfs handling for connections doesn't work anymore. The whole approach is actually fully broken and based on assumptions that are no longer valid. With the introduction of Simple Pairing support, the creation of low-level ACL links got changed. This change invalidates the reason why in the past two independent work queues have been used for adding/removing sysfs devices. The adding of the actual sysfs device is now postponed until the host controller successfully assigns an unique handle to that link. So the real synchronization happens inside the controller and not the host. The only left-over problem is that some internals of the sysfs device handling are not initialized ahead of time. This leaves potential access to invalid data and can cause various NULL pointer dereferences. To fix this a new function makes sure that all sysfs details are initialized when an connection attempt is made. The actual sysfs device is only registered when the connection has been successfully established. To avoid a race condition with the registration, the check if a device is registered has been moved into the removal work. As an extra protection two flush_work() calls are left in place to make sure a previous add/del work has been completed first. Based on a report by Marc Pignat <marc.pignat@hevs.ch> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Tested-by: Justin P. Mattock <justinmattock@gmail.com> Tested-by: Roger Quadros <ext-roger.quadros@nokia.com> Tested-by: Marc Pignat <marc.pignat@hevs.ch>
2009-05-04usbnet: CDC EEM support (v5)Omar Laazimani
This introduces a CDC Ethernet Emulation Model (EEM) host side driver to support USB EEM devices. EEM is different from the Ethernet Control Model (ECM) currently supported by the "CDC Ethernet" driver. One key difference is that it doesn't require of USB interface alternate settings to manage interface state; some maldesigned hardware can't handle that part of USB. It also avoids a separate USB interface for control and status updates. [ dbrownell@users.sourceforge.net: fix skb leaks, add rx packet checks, improve fault handling, EEM conformance updates, cleanup ] Signed-off-by: Omar Laazimani <omar.oberthur@gmail.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-04tcp: Fix tcp_prequeue() to get correct rto_min valueSatoru SATOH
tcp_prequeue() refers to the constant value (TCP_RTO_MIN) regardless of the actual value might be tuned. The following patches fix this and make tcp_prequeue get the actual value returns from tcp_rto_min(). Signed-off-by: Satoru SATOH <satoru.satoh@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-01virtio: add missing include to virtio_net.hGrant Likely
virtio_net.h uses the macro ETH_ALEN which is defined in linux/if_ether.h. Discovered when hacking on virtio-over-pci patches. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-01netfilter: use likely() in xt_info_rdlock_bh()Eric Dumazet
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-30Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6Steve French
2009-04-30nls: add a nls_nullsize inlineJeff Layton
It's possible for character sets to require a multi-byte null string terminator. Add a helper function that determines the size of the null terminator at runtime. Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: Suresh Jayaraman <sjayaraman@suse.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
2009-04-29Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (24 commits) e100: do not go D3 in shutdown unless system is powering off netfilter: revised locking for x_tables Bluetooth: Fix connection establishment with low security requirement Bluetooth: Add different pairing timeout for Legacy Pairing Bluetooth: Ensure that HCI sysfs add/del is preempt safe net: Avoid extra wakeups of threads blocked in wait_for_packet() net: Fix typo in net_device_ops description. ipv4: Limit size of route cache hash table Add reference to CAPI 2.0 standard Documentation/isdn/INTERFACE.CAPI update Documentation/isdn/00-INDEX ixgbe: Fix WoL functionality for 82599 KX4 devices veth: prevent oops caused by netdev destructor xfrm: wrong hash value for temporary SA forcedeth: tx timeout fix net: Fix LL_MAX_HEADER for CONFIG_TR_MODULE mlx4_en: Handle page allocation failure during receive mlx4_en: Fix cleanup flow on cq activation vlan: update vlan carrier state for admin up/down netfilter: xt_recent: fix stack overread in compat code ...
2009-04-28Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/holtmann/bluetooth-2.6
2009-04-28netfilter: revised locking for x_tablesStephen Hemminger
The x_tables are organized with a table structure and a per-cpu copies of the counters and rules. On older kernels there was a reader/writer lock per table which was a performance bottleneck. In 2.6.30-rc, this was converted to use RCU and the counters/rules which solved the performance problems for do_table but made replacing rules much slower because of the necessary RCU grace period. This version uses a per-cpu set of spinlocks and counters to allow to table processing to proceed without the cache thrashing of a global reader lock and keeps the same performance for table updates. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-28Merge branch 'drm-intel-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel * 'drm-intel-next' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel: drm/i915: fix up error path leak in i915_cmdbuffer drm/i915: fix unpaired i915 device mutex on entervt failure. drm/i915: add support for G41 chipset drm/i915: Enable ASLE if present drm/i915: Unregister ACPI video driver when exiting drm/i915: Register ACPI video even when not modesetting drm/i915: fix transition to I915_TILING_NONE drm/i915: Don't let an oops get triggered from irq_emit without dma init. drm/i915: allow tiled front buffers on 965+
2009-04-28regulator: fix header file missing kernel-docRandy Dunlap
Add regulator header file missing kernel-doc: Warning(include/linux/regulator/driver.h:117): No description found for parameter 'set_mode' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> cc: Liam Girdwood <lrg@slimlogic.co.uk> cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-04-28Bluetooth: Add different pairing timeout for Legacy PairingMarcel Holtmann
The Bluetooth stack uses a reference counting for all established ACL links and if no user (L2CAP connection) is present, the link will be terminated to save power. The problem part is the dedicated pairing when using Legacy Pairing (Bluetooth 2.0 and before). At that point no user is present and pairing attempts will be disconnected within 10 seconds or less. In previous kernel version this was not a problem since the disconnect timeout wasn't triggered on incoming connections for the first time. However this caused issues with broken host stacks that kept the connections around after dedicated pairing. When the support for Simple Pairing got added, the link establishment procedure needed to be changed and now causes issues when using Legacy Pairing When using Simple Pairing it is possible to do a proper reference counting of ACL link users. With Legacy Pairing this is not possible since the specification is unclear in some areas and too many broken Bluetooth devices have already been deployed. So instead of trying to deal with all the broken devices, a special pairing timeout will be introduced that increases the timeout to 60 seconds when pairing is triggered. If a broken devices now puts the stack into an unforeseen state, the worst that happens is the disconnect timeout triggers after 120 seconds instead of 4 seconds. This allows successful pairings with legacy and broken devices now. Based on a report by Johan Hedberg <johan.hedberg@nokia.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2009-04-28Bluetooth: Ensure that HCI sysfs add/del is preempt safeRoger Quadros
Use a different work_struct variables for add_conn() and del_conn() and use single work queue instead of two for adding and deleting connections. It eliminates the following error on a preemptible kernel: [ 204.358032] Unable to handle kernel NULL pointer dereference at virtual address 0000000c [ 204.370697] pgd = c0004000 [ 204.373443] [0000000c] *pgd=00000000 [ 204.378601] Internal error: Oops: 17 [#1] PREEMPT [ 204.383361] Modules linked in: vfat fat rfcomm sco l2cap sd_mod scsi_mod iphb pvr2d drm omaplfb ps [ 204.438537] CPU: 0 Not tainted (2.6.28-maemo2 #1) [ 204.443664] PC is at klist_put+0x2c/0xb4 [ 204.447601] LR is at klist_put+0x18/0xb4 [ 204.451568] pc : [<c0270f08>] lr : [<c0270ef4>] psr: a0000113 [ 204.451568] sp : cf1b3f10 ip : cf1b3f10 fp : cf1b3f2c [ 204.463104] r10: 00000000 r9 : 00000000 r8 : bf08029c [ 204.468353] r7 : c7869200 r6 : cfbe2690 r5 : c78692c8 r4 : 00000001 [ 204.474945] r3 : 00000001 r2 : cf1b2000 r1 : 00000001 r0 : 00000000 [ 204.481506] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel [ 204.488861] Control: 10c5387d Table: 887fc018 DAC: 00000017 [ 204.494628] Process btdelconn (pid: 515, stack limit = 0xcf1b22e0) Signed-off-by: Roger Quadros <ext-roger.quadros@nokia.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2009-04-28net: Avoid extra wakeups of threads blocked in wait_for_packet()Eric Dumazet
In 2.6.25 we added UDP mem accounting. This unfortunatly added a penalty when a frame is transmitted, since we have at TX completion time to call sock_wfree() to perform necessary memory accounting. This calls sock_def_write_space() and utimately scheduler if any thread is waiting on the socket. Thread(s) waiting for an incoming frame was scheduled, then had to sleep again as event was meaningless. (All threads waiting on a socket are using same sk_sleep anchor) This adds lot of extra wakeups and increases latencies, as noted by Christoph Lameter, and slows down softirq handler. Reference : http://marc.info/?l=linux-netdev&m=124060437012283&w=2 Fortunatly, Davide Libenzi recently added concept of keyed wakeups into kernel, and particularly for sockets (see commit 37e5540b3c9d838eb20f2ca8ea2eb8072271e403 epoll keyed wakeups: make sockets use keyed wakeups) Davide goal was to optimize epoll, but this new wakeup infrastructure can help non epoll users as well, if they care to setup an appropriate handler. This patch introduces new DEFINE_WAIT_FUNC() helper and uses it in wait_for_packet(), so that only relevant event can wakeup a thread blocked in this function. Trace of function calls from bnx2 TX completion bnx2_poll_work() is : __kfree_skb() skb_release_head_state() sock_wfree() sock_def_write_space() __wake_up_sync_key() __wake_up_common() receiver_wake_function() : Stops here since thread is waiting for an INPUT Reported-by: Christoph Lameter <cl@linux.com> Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-27Remove unused support code for refok sections.Tim Abbott
The old refok sections .text.init.refok .data.init.refok .exit.text.refok have been deprecated since commit 312b1485fb509c9bc32eda28ad29537896658cb8. After the other patches in this patch series nothing is put in these sections, so clean things up by eliminating all the remaining references to them. Signed-off-by: Tim Abbott <tabbott@mit.edu> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-27Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: PCI: only save/restore existent registers in the PCIe capability x86/PCI: don't bother with root quirks if _CRS is used docbooks: add/fix PCI kernel-doc PCI: cleanup debug output resources x86/PCI: set_pci_bus_resources_arch_default cleanups x86/PCI: Move set_pci_bus_resources_arch_default into arch/x86 x86/PCI: don't call e820_all_mapped with -1 in the mmconfig case PCI quirk: disable MSI on VIA VT3364 chipsets
2009-04-27net: Fix typo in net_device_ops description.Mike Rapoport
Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-27net: Fix LL_MAX_HEADER for CONFIG_TR_MODULEAdrian Bunk
Unless I miss anything this should fix a bug. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-26Add new HEAD_TEXT_SECTION macro.Tim Abbott
This patch is preparation for replacing all uses of ".head.text" or ".text.head" in the kernel with macros, so that the section name can later be changed without having to touch a lot of the kernel. Since some linker scripts do more complex things than referencing HEAD_TEXT, we add a HEAD_TEXT_SECTION macro that just contains the actual name. I've defined HEAD_TEXT_SECTION in a new header, include/linux/section-names.h, so that this section name only needs to appear in one place. I anticipate creating similar macro structures for a number of other section names. The long-term goal here is to be able to change the kernel's magic section names to those that are compatible with -ffunction-sections -fdata-sections. This requires renaming all magic sections with names of the form ".text.foo". Signed-off-by: Tim Abbott <tabbott@mit.edu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-25Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6
2009-04-24Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (34 commits) ACPI, i915: Register ACPI video even when not modesetting Revert "ACPICA: delete check for AML access to port 0x81-83" I/O port protection: update for windows compatibility. sony-laptop: always try to unblock rfkill on load sony-laptop: fix bogus error message display on resume ACPI: EC: Fix ACPI EC resume non-query interrupt message sony-laptop: SNC input event 38 fix sony-laptop: SNC 127 Initialization Fix sony-laptop: Duplicate SNC 127 Event Fix ACPI: prevent processor.max_cstate=0 boot crash ACPI/hpet: prevent boot hang when hpet=force used on ICH-4M ACPI: delete obsolete "bus master activity" proc field ACPI: idle: mark_tsc_unstable() at init-time, not run-time ACPI: add /sys/firmware/acpi/interrupts/sci_not counter ACPI video: fix an error when the brightness levels on AC and on Battery are same acpi-cpufreq: Do not let get_measured perf depend on internal variable acpi-cpufreq: style-only: add parens to math expression acpi-cpufreq: Cleanup: Use printk_once x86, acpi_cpufreq: Fix the NULL pointer dereference in get_measured_perf thinkpad-acpi: bump up version to 0.23 ...
2009-04-24Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: Fix potential inode allocation soft lockup in Orlov allocator ext4: Make the extent validity check more paranoid jbd: use SWRITE_SYNC_PLUG when writing synchronous revoke records jbd2: use SWRITE_SYNC_PLUG when writing synchronous revoke records ext4: really print the find_group_flex fallback warning only once
2009-04-24Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 5460/1: Orion: reduce namespace pollution [ARM] 5458/1: pcmcia: pxa2xx-sharpsl: check if we do have Scoop config [ARM] 5457/1: mach-imx gpio buildfix [ARM] 5456/1: add sys_preadv and sys_pwritev [ARM] pxa/pcm990: start external GPIOs immediately after built-in ones [ARM] pxa/palm27x: General fix for Palm27x aSoC driver [ARM] pxa/mioa701: use GPIO95 as AC97 reset line [ARM] pxa: merge AC97 platform data structures [ARM] pxa/magician: remove un-necessary #include of pxa-regs.h and hardware.h
2009-04-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: USB: pwc : do not pass stack allocated buffers to USB core. USB: otg: Fix bug on remove path without transceiver USB: correct error handling in cdc-wdm USB: removal of tty->low_latency hack dating back to the old serial code USB: serial: sierra driver bug fix for composite interface USB: gadget: omap_udc uses platform_driver_probe() USB: ci13xxx_udc: fix build error USB: musb: Prevent multiple includes of musb.h USB: pass mem_flags to dma_alloc_coherent USB: g_file_storage: fix use-after-free bug when closing files USB: ehci-sched.c: EHCI SITD scheduling bugfix USB: fix mos7840 problem with minor numbers USB: mos7840: add new device id USB: musb: fix build when !CONFIG_PM USB: musb: Remove my email address from few musb related drivers USB: Gadget: MIPS CI13xxx UDC bugfixes USB: Unusual Device support for Gold MP3 Player Energy USB: serial: fix lifetime and locking problems