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* ipv6: Convert to use flowi6 where applicable.David S. Miller2011-03-12
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'for-davem' of ↵David S. Miller2011-03-12
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
| * Merge branch 'master' of ↵John W. Linville2011-03-11
| |\ | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
| | * ieee80211: add IEEE80211_COUNTRY_STRING_LEN definitionBing Zhao2011-03-09
| | | | | | | | | | | | | | | | | | | | | and make use of it in wireless drivers Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | net: add proper documentation for previously added net_device_ops for FCoEYi Zou2011-03-11
|/ / | | | | | | | | | | | | Add proper documentation for previously added net_device_ops ops for FCoE. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | ipv4: Remove redundant RCU locking in ip_check_mc().David S. Miller2011-03-10
| | | | | | | | | | | | | | | | All callers are under rcu_read_lock() protection already. Rename to ip_check_mc_rcu() to make it even more clear. Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'master' of ↵David S. Miller2011-03-10
|\ \ | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/bnx2x/bnx2x_cmn.c
| * \ Merge branch 'for-linus' of ↵Linus Torvalds2011-03-09
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: net: don't allow CAP_NET_ADMIN to load non-netdev kernel modules
| | * | net: don't allow CAP_NET_ADMIN to load non-netdev kernel modulesVasiliy Kulikov2011-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since a8f80e8ff94ecba629542d9b4b5f5a8ee3eb565c any process with CAP_NET_ADMIN may load any module from /lib/modules/. This doesn't mean that CAP_NET_ADMIN is a superset of CAP_SYS_MODULE as modules are limited to /lib/modules/**. However, CAP_NET_ADMIN capability shouldn't allow anybody load any module not related to networking. This patch restricts an ability of autoloading modules to netdev modules with explicit aliases. This fixes CVE-2011-1019. Arnd Bergmann suggested to leave untouched the old pre-v2.6.32 behavior of loading netdev modules by name (without any prefix) for processes with CAP_SYS_MODULE to maintain the compatibility with network scripts that use autoloading netdev modules by aliases like "eth0", "wlan0". Currently there are only three users of the feature in the upstream kernel: ipip, ip_gre and sit. root@albatros:~# capsh --drop=$(seq -s, 0 11),$(seq -s, 13 34) -- root@albatros:~# grep Cap /proc/$$/status CapInh: 0000000000000000 CapPrm: fffffff800001000 CapEff: fffffff800001000 CapBnd: fffffff800001000 root@albatros:~# modprobe xfs FATAL: Error inserting xfs (/lib/modules/2.6.38-rc6-00001-g2bf4ca3/kernel/fs/xfs/xfs.ko): Operation not permitted root@albatros:~# lsmod | grep xfs root@albatros:~# ifconfig xfs xfs: error fetching interface information: Device not found root@albatros:~# lsmod | grep xfs root@albatros:~# lsmod | grep sit root@albatros:~# ifconfig sit sit: error fetching interface information: Device not found root@albatros:~# lsmod | grep sit root@albatros:~# ifconfig sit0 sit0 Link encap:IPv6-in-IPv4 NOARP MTU:1480 Metric:1 root@albatros:~# lsmod | grep sit sit 10457 0 tunnel4 2957 1 sit For CAP_SYS_MODULE module loading is still relaxed: root@albatros:~# grep Cap /proc/$$/status CapInh: 0000000000000000 CapPrm: ffffffffffffffff CapEff: ffffffffffffffff CapBnd: ffffffffffffffff root@albatros:~# ifconfig xfs xfs: error fetching interface information: Device not found root@albatros:~# lsmod | grep xfs xfs 745319 0 Reference: https://lkml.org/lkml/2011/2/24/203 Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Kees Cook <kees.cook@canonical.com> Signed-off-by: James Morris <jmorris@namei.org>
| * | | sysctl: the include of rcupdate.h is only needed in the kernelStephen Rothwell2011-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes this build-check error: include/linux/sysctl.h:28: included file 'linux/rcupdate.h' is not exported Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | Merge branch 'for-linus' of ↵Linus Torvalds2011-03-09
| |\ \ \ | | |/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | 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: nd->inode is not set on the second attempt in path_walk() unfuck proc_sysctl ->d_compare() minimal fix for do_filp_open() race
| | * | unfuck proc_sysctl ->d_compare()Al Viro2011-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | a) struct inode is not going to be freed under ->d_compare(); however, the thing PROC_I(inode)->sysctl points to just might. Fortunately, it's enough to make freeing that sucker delayed, provided that we don't step on its ->unregistering, clear the pointer to it in PROC_I(inode) before dropping the reference and check if it's NULL in ->d_compare(). b) I'm not sure that we *can* walk into NULL inode here (we recheck dentry->seq between verifying that it's still hashed / fetching dentry->d_inode and passing it to ->d_compare() and there's no negative hashed dentries in /proc/sys/*), but if we can walk into that, we really should not have ->d_compare() return 0 on it! Said that, I really suspect that this check can be simply killed. Nick? Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | | Merge branch 'for-linus' of ↵Linus Torvalds2011-03-05
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: ceph: no .snap inside of snapped namespace libceph: fix msgr standby handling libceph: fix msgr keepalive flag libceph: fix msgr backoff libceph: retry after authorization failure libceph: fix handling of short returns from get_user_pages ceph: do not clear I_COMPLETE from d_release ceph: do not set I_COMPLETE Revert "ceph: keep reference to parent inode on ceph_dentry"
| | * | | libceph: fix msgr keepalive flagSage Weil2011-03-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There was some broken keepalive code using a dead variable. Shift to using the proper bit flag. Signed-off-by: Sage Weil <sage@newdream.net>
| | * | | libceph: fix msgr backoffSage Weil2011-03-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With commit f363e45f we replaced a bunch of hacky workqueue mutual exclusion logic with the WQ_NON_REENTRANT flag. One pieces of fallout is that the exponential backoff breaks in certain cases: * con_work attempts to connect. * we get an immediate failure, and the socket state change handler queues immediate work. * con_work calls con_fault, we decide to back off, but can't queue delayed work. In this case, we add a BACKOFF bit to make con_work reschedule delayed work next time it runs (which should be immediately). Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | mm: add alloc_page_vma_node()Andi Kleen2011-03-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a alloc_page_vma_node that allows passing the "local" node in. Used in a followon patch. Acked-by: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | | mm: change alloc_pages_vma to pass down the policy node for local policyAndi Kleen2011-03-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently alloc_pages_vma() always uses the local node as policy node for the LOCAL policy. Pass this node down as an argument instead. No behaviour change from this patch, but will be needed for followons. Acked-by: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | | Mark ptrace_{traceme,attach,detach} staticLinus Torvalds2011-03-04
| | |/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | They are only used inside kernel/ptrace.c, and have been for a long time. We don't want to go back to the bad-old-days when architectures did things on their own, so make them static and private. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | tg3: Add code to verify RODATA checksum of VPDMatt Carlson2011-03-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds code to verify the checksum stored in the "RV" info keyword of the RODATA VPD section. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | tcp: ioctl type SIOCOUTQNSD returns amount of data not sentMario Schuknecht2011-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In contrast to SIOCOUTQ which returns the amount of data sent but not yet acknowledged plus data not yet sent this patch only returns the data not sent. For various methods of live streaming bitrate control it may be helpful to know how much data are in the tcp outqueue are not sent yet. Signed-off-by: Mario Schuknecht <m.schuknecht@dresearch.de> Signed-off-by: Steffen Sledz <sledz@dresearch.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | Phonet: kill the ST-Ericsson pipe controller KconfigRémi Denis-Courmont2011-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is now a run-time choice so that a single kernel can support both old and new generation ISI modems. Support for manually enabling the pipe flow is removed as it did not work properly, does not fit well with the socket API, and I am not aware of any use at the moment. Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | Phonet: provide pipe socket option to retrieve the pipe identifierRémi Denis-Courmont2011-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | User-space sometimes needs this information. In particular, the GPRS context or the AT commands pipe setups may use the pipe handle as a reference. This removes the settable pipe handle with CONFIG_PHONET_PIPECTRLR. It did not handle error cases correctly. Furthermore, the kernel *could* implement a smart scheme for allocating handles (if ever needed), but userspace really cannot. Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | net: add ndo_fcoe_ddp_target() to support FCoE DDP in target modeYi Zou2011-03-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Fiber Channel over Ethernet (FCoE) Direct Data Placement (DDP) can also be used for FCoE target, where the DDP used for read I/O on an initiator can be used on an FCoE target to speed up the write I/O to the target from the initiator. The added ndo_fcoe_ddp_target() works in the similar way as the existing ndo_fcoe_ddp_setup() to allow the underlying hardware set up the DDP context accordingly when it gets called from the FCoE target implementation on top the existing Open-FCoE fcoe/libfc protocol stack so without losing the ability to provide DDP for read I/O as an initiator, it can also provide DDP offload to the write I/O coming from the initiator as a target. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Kiran Patil <kiran.patil@intel.com> Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | | | netdevice: Convert printk to pr_info in netif_tx_stop_queueJoe Perches2011-03-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This allows any caller to be prefaced by any specific pr_fmt to better identify which device driver is using this function inappropriately. Add terminating newline. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | Merge branch 'for-davem' of ↵David S. Miller2011-03-04
|\ \ \ \ | | | | | | | | | | | | | | | ssh://master.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
| * \ \ \ Merge branch 'master' of ↵John W. Linville2011-03-04
| |\ \ \ \ | | | |_|/ | | |/| | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
| | * | | cfg80211: add a field for the bitrate of the last rx data packet from a stationFelix Fietkau2011-03-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Also fix a typo in the STATION_INFO_TX_BITRATE description Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | | | Merge branch 'master' of ↵David S. Miller2011-03-04
|\ \ \ \ \ | | |_|/ / | |/| | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/bnx2x/bnx2x.h
| * | | | Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds2011-03-03
| |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git.kernel.dk/linux-2.6-block: block: kill loop_mutex blktrace: Remove blk_fill_rwbs_rq. block: blk-flush shouldn't call directly into q->request_fn() __blk_run_queue() block: add @force_kblockd to __blk_run_queue() block: fix kernel-doc format for blkdev_issue_zeroout blk-throttle: Do not use kblockd workqueue for throtl work
| | * | | | blktrace: Remove blk_fill_rwbs_rq.Tao Ma2011-03-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If we enable trace events to trace block actions, We use blk_fill_rwbs_rq to analyze the corresponding actions in request's cmd_flags, but we only choose the minor 2 bits from it, so most of other flags(e.g, REQ_SYNC) are missing. For example, with a sync write we get: write_test-2409 [001] 160.013869: block_rq_insert: 3,64 W 0 () 258135 + = 8 [write_test] Since now we have integrated the flags of both bio and request, it is safe to pass rq->cmd_flags directly to blk_fill_rwbs and blk_fill_rwbs_rq isn't needed any more. With this patch, after a sync write we get: write_test-2417 [000] 226.603878: block_rq_insert: 3,64 WS 0 () 258135 += 8 [write_test] Signed-off-by: Tao Ma <boyu.mt@taobao.com> Acked-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
| | * | | | block: add @force_kblockd to __blk_run_queue()Tejun Heo2011-03-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | __blk_run_queue() automatically either calls q->request_fn() directly or schedules kblockd depending on whether the function is recursed. blk-flush implementation needs to be able to explicitly choose kblockd. Add @force_kblockd. All the current users are converted to specify %false for the parameter and this patch doesn't introduce any behavior change. stable: This is prerequisite for fixing ide oops caused by the new blk-flush implementation. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Jan Beulich <JBeulich@novell.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: stable@kernel.org Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
| | * | | | blk-throttle: Do not use kblockd workqueue for throtl workVivek Goyal2011-03-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | o Dominik Klein reported a system hang issue while doing some blkio throttling testing. https://lkml.org/lkml/2011/2/24/173 o Some tracing revealed that CFQ was not dispatching any more jobs as queue unplug was not happening. And queue unplug was not happening because unplug work was not being called as there was one throttling work on same cpu which as not finished yet. And throttling work had not finished as it was tyring to dispatch a bio to CFQ but all the request descriptors were consume to it was put to sleep. o So basically it is a cyclic dependecny between CFQ unplug work and throtl dispatch work. Tejun suggested that use separate workqueue for such cases. o This patch uses a separate workqueue for throttle related work and does not rely on kblockd workqueue anymore. Cc: stable@kernel.org Reported-by: Dominik Klein <dk@in-telegence.net> Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
| * | | | | mfd: Don't suspend WM8994 if the CODEC is not suspendedMark Brown2011-03-02
| |/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ASoC supports keeping the audio subsysetm active over suspend in order to support use cases such as audio passthrough from a cellular modem with the main CPU suspended. Ensure that we don't power down the CODEC when this is happening by checking to see if VMID is up and skipping suspend and resume when it is. If the CODEC has suspended then it'll turn VMID off before the core suspend() gets called. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * | | | ACPI: Fix build for CONFIG_NET unsetRafael J. Wysocki2011-02-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Several ACPI drivers fail to build if CONFIG_NET is unset, because they refer to things depending on CONFIG_THERMAL that in turn depends on CONFIG_NET. However, CONFIG_THERMAL doesn't really need to depend on CONFIG_NET, because the only part of it requiring CONFIG_NET is the netlink interface in thermal_sys.c. Put the netlink interface in thermal_sys.c under #ifdef CONFIG_NET and remove the dependency of CONFIG_THERMAL on CONFIG_NET from drivers/thermal/Kconfig. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Len Brown <lenb@kernel.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Luming Yu <luming.yu@intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | | Merge branch 'pm-fixes' of ↵Linus Torvalds2011-02-25
| |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6 * 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6: PM: Make ACPI wakeup from S5 work again when CONFIG_PM_SLEEP is unset
| | * | | | PM: Make ACPI wakeup from S5 work again when CONFIG_PM_SLEEP is unsetRafael J. Wysocki2011-02-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 074037e (PM / Wakeup: Introduce wakeup source objects and event statistics (v3)) caused ACPI wakeup to only work if CONFIG_PM_SLEEP is set, but it also worked for CONFIG_PM_SLEEP unset before. This can be fixed by making device_set_wakeup_enable(), device_init_wakeup() and device_may_wakeup() work in the same way as before commit 074037e when CONFIG_PM_SLEEP is unset. Reported-and-tested-by: Justin Maggard <jmaggard10@gmail.com> Cc: stable@kernel.org Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
| * | | | | rapidio: fix sysfs config attribute to access 16MB of maint spaceAlexandre Bounine2011-02-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes sysfs config attribute to allow access to entire 16MB maintenance space of RapidIO devices. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Li Yang <leoli@freescale.com> Cc: Thomas Moll <thomas.moll@sysgo.com> Cc: Micha Nelissen <micha@neli.hopto.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | | | Merge branch 'for-linus' of git://neil.brown.name/mdLinus Torvalds2011-02-25
| |\ \ \ \ \ | | |/ / / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://neil.brown.name/md: md: Fix - again - partition detection when array becomes active Fix over-zealous flush_disk when changing device size. md: avoid spinlock problem in blk_throtl_exit md: correctly handle probe of an 'mdp' device. md: don't set_capacity before array is active. md: Fix raid1->raid0 takeover
| | * | | | Fix over-zealous flush_disk when changing device size.NeilBrown2011-02-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are two cases when we call flush_disk. In one, the device has disappeared (check_disk_change) so any data will hold becomes irrelevant. In the oter, the device has changed size (check_disk_size_change) so data we hold may be irrelevant. In both cases it makes sense to discard any 'clean' buffers, so they will be read back from the device if needed. In the former case it makes sense to discard 'dirty' buffers as there will never be anywhere safe to write the data. In the second case it *does*not* make sense to discard dirty buffers as that will lead to file system corruption when you simply enlarge the containing devices. flush_disk calls __invalidate_devices. __invalidate_device calls both invalidate_inodes and invalidate_bdev. invalidate_inodes *does* discard I_DIRTY inodes and this does lead to fs corruption. invalidate_bev *does*not* discard dirty pages, but I don't really care about that at present. So this patch adds a flag to __invalidate_device (calling it __invalidate_device2) to indicate whether dirty buffers should be killed, and this is passed to invalidate_inodes which can choose to skip dirty inodes. flusk_disk then passes true from check_disk_change and false from check_disk_size_change. dm avoids tripping over this problem by calling i_size_write directly rathher than using check_disk_size_change. md does use check_disk_size_change and so is affected. This regression was introduced by commit 608aeef17a which causes check_disk_size_change to call flush_disk, so it is suitable for any kernel since 2.6.27. Cc: stable@kernel.org Acked-by: Jeff Moyer <jmoyer@redhat.com> Cc: Andrew Patterson <andrew.patterson@hp.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: NeilBrown <neilb@suse.de>
| * | | | | mm: prevent concurrent unmap_mapping_range() on the same inodeMiklos Szeredi2011-02-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Michael Leun reported that running parallel opens on a fuse filesystem can trigger a "kernel BUG at mm/truncate.c:475" Gurudas Pai reported the same bug on NFS. The reason is, unmap_mapping_range() is not prepared for more than one concurrent invocation per inode. For example: thread1: going through a big range, stops in the middle of a vma and stores the restart address in vm_truncate_count. thread2: comes in with a small (e.g. single page) unmap request on the same vma, somewhere before restart_address, finds that the vma was already unmapped up to the restart address and happily returns without doing anything. Another scenario would be two big unmap requests, both having to restart the unmapping and each one setting vm_truncate_count to its own value. This could go on forever without any of them being able to finish. Truncate and hole punching already serialize with i_mutex. Other callers of unmap_mapping_range() do not, and it's difficult to get i_mutex protection for all callers. In particular ->d_revalidate(), which calls invalidate_inode_pages2_range() in fuse, may be called with or without i_mutex. This patch adds a new mutex to 'struct address_space' to prevent running multiple concurrent unmap_mapping_range() on the same mapping. [ We'll hopefully get rid of all this with the upcoming mm preemptibility series by Peter Zijlstra, the "mm: Remove i_mmap_mutex lockbreak" patch in particular. But that is for 2.6.39 ] Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Reported-by: Michael Leun <lkml20101129@newton.leun.net> Reported-by: Gurudas Pai <gurudas.pai@oracle.com> Tested-by: Gurudas Pai <gurudas.pai@oracle.com> Acked-by: Hugh Dickins <hughd@google.com> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2011-02-23
| |\ \ \ \ \ | | |_|_|_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (33 commits) Added support for usb ethernet (0x0fe6, 0x9700) r8169: fix RTL8168DP power off issue. r8169: correct settings of rtl8102e. r8169: fix incorrect args to oob notify. DM9000B: Fix PHY power for network down/up DM9000B: Fix reg_save after spin_lock in dm9000_timeout net_sched: long word align struct qdisc_skb_cb data sfc: lower stack usage in efx_ethtool_self_test bridge: Use IPv6 link-local address for multicast listener queries bridge: Fix MLD queries' ethernet source address bridge: Allow mcast snooping for transient link local addresses too ipv6: Add IPv6 multicast address flag defines bridge: Add missing ntohs()s for MLDv2 report parsing bridge: Fix IPv6 multicast snooping by correcting offset in MLDv2 report bridge: Fix IPv6 multicast snooping by storing correct protocol type p54pci: update receive dma buffers before and after processing fix cfg80211_wext_siwfreq lock ordering... rt2x00: Fix WPA TKIP Michael MIC failures. ath5k: Fix fast channel switching tcp: undo_retrans counter fixes ...
| * | | | | module: explicitly align module_version_attribute structureDmitry Torokhov2011-02-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We force particular alignment when we generate attribute structures when generation MODULE_VERSION() data and we need to make sure that this alignment is followed when we iterate over these structures, otherwise we may crash on platforms whose natural alignment is not sizeof(void *), such as m68k. Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Dmitry Torokhov <dtor@vmware.com> [ There are more issues here, but the fixes are incredibly ugly - Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | netlink: kill eff_cap from struct netlink_skb_parmsPatrick McHardy2011-03-03
| |_|_|/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Netlink message processing in the kernel is synchronous these days, capabilities can be checked directly in security_netlink_recv() from the current process. Signed-off-by: Patrick McHardy <kaber@trash.net> Reviewed-by: James Morris <jmorris@namei.org> [chrisw: update to include pohmelfs and uvesafb] Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | netlink: kill loginuid/sessionid/sid members from struct netlink_skb_parmsPatrick McHardy2011-03-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Netlink message processing in the kernel is synchronous these days, the session information can be collected when needed. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | dcbnl: add support for retrieving peer configuration - ceeShmulik Ravid2011-03-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the support for retrieving the remote or peer DCBX configuration via dcbnl for embedded DCBX stacks supporting the CEE DCBX standard. Signed-off-by: Shmulik Ravid <shmulikr@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | dcbnl: add support for retrieving peer configuration - ieeeShmulik Ravid2011-03-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These 2 patches add the support for retrieving the remote or peer DCBX configuration via dcbnl for embedded DCBX stacks. The peer configuration is part of the DCBX MIB and is useful for debugging and diagnostics of the overall DCB configuration. The first patch add this support for IEEE 802.1Qaz standard the second patch add the same support for the older CEE standard. Diff for v2 - the peer-app-info is CEE specific. Signed-off-by: Shmulik Ravid <shmulikr@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | netdevice: make initial group visible to userspaceVlad Dogaru2011-03-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | INIT_NETDEV_GROUP is needed by userspace, move it outside __KERNEL__ guards. Signed-off-by: Vlad Dogaru <ddvlad@rosedu.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | netpoll: remove IFF_IN_NETPOLL flagAmerigo Wang2011-02-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | V4: rebase to net-next-2.6 This patch removes the flag IFF_IN_NETPOLL, we don't need it any more since we have netpoll_tx_running() now. Signed-off-by: WANG Cong <amwang@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | Merge branch 'for-davem' of ↵David S. Miller2011-02-25
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
| * \ \ \ \ Merge branch 'master' of ↵John W. Linville2011-02-22
| |\ \ \ \ \ | | | |_|_|/ | | |/| | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-11 10:29:10 -0500