- 30 Jan, 2009 19 commits
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Paul Menage authored
css_tryget() and cgroup_clear_css_refs() contain polling loops; these loops should have cpu_relax calls in them to reduce cross-cache traffic. Signed-off-by:
Paul Menage <menage@google.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Li Zefan authored
I fixed a bug in cgroup_clone() in Linus' tree in commit 7b574b7b ("cgroups: fix a race between cgroup_clone and umount") without noticing there was a cleanup patch in -mm tree that should be rebased (now commit 104cbd5, "cgroups: use task_lock() for access tsk->cgroups safe in cgroup_clone()"), thus resulted in lock inconsistency. Signed-off-by:
Li Zefan <lizf@cn.fujitsu.com> Acked-by:
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Ivan Kokshaysky authored
The commit "alpha: teach the compiler that BUG doesn't return" (ed6b9b97) moved the asm code into inline function which takes __FILE__ and __LINE__ as arguments. This violates asm constrains there ("i" - an immediate operand with constant value), so that compile may result in warning or error, depending on compiler version. Just adding an infinite loop to the BUG() is sufficient. Signed-off-by:
Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Richard Henderson <rth@twiddle.net> Signed-off-by:
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Ivan Kokshaysky authored
- jensen build: fix conflicting declarations for pci_alloc_consistent() and undefined virt_to_phys(); - SMP: arch/alpha/kernel/smp.c:124: warning: passing argument 2 of '__cpu_test_and_set' discards qualifiers from pointer target type Interestingly, this only happens with gcc-4.2; gcc <= 4.1 and gcc-4.3 are OK. Fixed with extra assignment. Signed-off-by: -
Ivan Kokshaysky authored
Convert OSF syscalls and add alpha specific SYSCALL_ALIAS() macro. Signed-off-by:
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KAMEZAWA Hiroyuki authored
N_POSSIBLE doesn't means there is memory...and force_empty can visit invalid node which have no pgdat. To visit all valid nodes, N_HIGH_MEMORY should be used. Reported-by:
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Tested-by:
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Alex Buell authored
Signed-off-by:
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Frans Pop authored
Error was introduced in commit fe8e4e03 ("hp-wmi: handle rfkill_register() failure"). Signed-off-by:
Frans Pop <elendil@planet.nl> Acked-by:
Larry Finger <Larry.Finger@lwfinger.net> Acked-by:
Matthew Garrett <mjg@redhat.com> Cc: Matthew Garrett <mjg59@srcf.ucam.org> Cc: Len Brown <lenb@kernel.org> Signed-off-by:
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KAMEZAWA Hiroyuki authored
Considering the recently found problem "memcg: fix refcnt handling at swapoff", it's better to mention swapoff behavior in the memcg_test document. Signed-off-by:
Balbir Singh <balbir@linux.vnet.ibm.com> Cc: Li Zefan <lizf@cn.fujitsu.com> Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Signed-off-by:
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KAMEZAWA Hiroyuki authored
Now, at swapoff, even while try_charge() fails, commit is executed. This is a bug which turns the refcnt of cgroup_subsys_state negative. Reported-by:
Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Signed-off-by:
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Magnus Damm authored
Fix request-already-requested handling in gpio_request(). Signed-off-by:
Magnus Damm <damm@igel.co.jp> Acked-by:
David Brownell <dbrownell@users.sourceforge.net> Cc: <stable@kernel.org> [2.6.28.x] Signed-off-by:
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Daisuke Nishimura authored
The lifetime of struct cgroup and struct mem_cgroup is different and mem_cgroup has its own reference count for handling references from swap_cgroup. This causes strange problem that the parent mem_cgroup dies while child mem_cgroup alive, and this problem causes a bug in case of use_hierarchy==1 because res_counter_uncharge climbs up the tree. This patch is for avoiding it by getting the parent at create, and putting it at freeing. Signed-off-by:
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KAMEZAWA Hiroyuki authored
Now, cgrp->sibling is handled under hierarchy mutex. error route should do so, too. Signed-off-by:
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Evgeniy Polyakov authored
Signed-off-by:
Evgeniy Polyakov <zbr@ioremap.net> Acked-by:
David Rientjes <rientjes@google.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by:
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Masami Hiramatsu authored
Define kprobes related data structures even if CONFIG_KPROBES is not set. This fixes compilation errors which occur if CONFIG_KPROBES is not set, in kprobe using modules. [akpm@linux-foundation.org: fix build for non-kprobes-supporting architectures] Reviewed-by:
Ananth N Mavinakayanahalli <ananth@in.ibm.com> Signed-off-by:
Masami Hiramatsu <mhiramat@redhat.com> Signed-off-by:
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Robin Holt authored
Clean up the stale DBUG_ON checks and add a couple new ones. Signed-off-by:
Robin Holt <holt@sgi.com> Signed-off-by:
Dean Nelson <dcn@sgi.com> Signed-off-by:
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Robin Holt authored
If the bte copy fails, the attempt to retrieve payloads merely returns a null pointer deref and not NULL as was expected. Signed-off-by:
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Robin Holt authored
The clearing of the msg->flags needs a barrier between it and the notify of the channel threads that the messages are cleaned and ready for use. Signed-off-by:
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Linus Torvalds authored
As of commit ba470de4 ("map: handle mlocked pages during map, remap, unmap") we now use the 'vma' variable at the end of mmap_region() to handle the page-in of newly mapped mlocked pages. However, if we merged adjacent vma's together, the vma we're using may be stale. We historically consciously avoided using it after the merge operation, but that got overlooked when redoing the locked page handling. This commit simplifies mmap_region() by doing any vma merges early, avoiding the issue entirely, and 'vma' will always be valid. As pointed out by Hugh Dickins, this depends on any drivers that change the page offset of flags to have set one of the VM_SPECIAL bits (so that they cannot trigger the early merge logic), but that's true in general. Reported-and-tested-by:
Maksim Yevmenkin <maksim.yevmenkin@gmail.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com> Cc: Nick Piggin <npiggin@suse.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by:
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- 28 Jan, 2009 21 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpcLinus Torvalds authored
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc/mm: Fix handling of _PAGE_COHERENT in BAT setup code powerpc/pseries: Correct VIO bus accounting problem in CMO env. powerpc: More printing warning fixes for the l64 to ll64 conversion powerpc: Remove arch/ppc cruft from Kconfig powerpc: Printing fix for l64 to ll64 conversion: phyp_dump.c powerpc/embedded6xx: Update defconfigs powerpc/8xx: Update defconfigs powerpc/86xx: Update defconfigs powerpc/83xx: Update defconfigs powerpc/85xx: Update defconfigs powerpc/mpc8313erdb: fix kernel panic because mdio device is not probed powerpc/4xx: Update multi-board PowerPC 4xx defconfigs powerpc/44x: Update PowerPC 44x defconfigs powerpc/40x: Update PowerPC 40x defconfigs powerpc/85xx: Fix typo in mpc8572ds dts powerpc/44x: Warp patches for the new NDFC driver powerpc/4xx: DTS: Add Add'l SDRAM0 Compatible and Interrupt Info
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git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommuLinus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68knommu: fix 5329 ColdFire periphal addressing uclinux: add process name to allocation error message m68knommu: correct the mii calculations for 532x ColdFire FEC m68knommu: add ColdFire M532x to the FEC configuration options m68knommu: fix syscall restarting m68knommu: remove the obsolete and long unused comempci chip support m68knommu: remove the no longer used PCI support option m68knommu: remove obsolete and unused eLIA board m68knommu: set NO_DMA m68knommu: fix cache flushing for the 527x ColdFire processors m68knommu: fix ColdFire 5272 serial baud rates in mcf.c m68knommu: use one exist from execption
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Kumar Gala authored
Commit d7b1956f ("DMI: Introduce dmi_first_match to make the interface more flexible") introduced compile errors like the following when !CONFIG_DMI drivers/ata/sata_sil.c: In function 'sil_broken_system_poweroff': drivers/ata/sata_sil.c:713: error: implicit declaration of function 'dmi_first_match' drivers/ata/sata_sil.c:713: warning: initialization makes pointer from integer without a cast We just need a dummy version of dmi_first_match() to fix this all up. Signed-off-by:
Kumar Gala <galak@kernel.crashing.org> Signed-off-by:
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Eric Anholt authored
Schedule a vblank signal, kill the process, and we'll go walking over freed memory. Given that no open-source userland exists using this, nor have I ever heard of a consumer, just let this code die. Signed-off-by:
Eric Anholt <eric@anholt.net> Requested-by:
Dave Airlie <airlied@linux.ie> Signed-off-by:
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Gerhard Pircher authored
_PAGE_COHERENT is now always set in _PAGE_RAM resp. PAGE_KERNEL. Thus it has to be masked out, if the BAT mapping should be non cacheable or CPU_FTR_NEED_COHERENT is not set. This will work on normal SMP setups because we force-set CPU_FTR_NEED_COHERENT as part of CPU_FTR_COMMON on SMP. Signed-off-by:
Gerhard Pircher <gerhard_pircher@gmx.net> Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Robert Jennings authored
In the VIO bus code the wrappers for dma alloc_coherent and free_coherent calls are rounding to IOMMU_PAGE_SIZE. Taking a look at the underlying calls, the actual mapping is promoted to PAGE_SIZE. Changing the rounding in these two functions fixes under-reporting the entitlement used by the system. Without this change, the system could run out of entitlement before it believes it has and incur mapping failures at the firmware level. Also in the VIO bus code, the wrapper for dma map_sg is not exiting in an error path where it should. Rather than fall through to code for the success case, this patch adds the return that is needed in the error path. Signed-off-by:
Robert Jennings <rcj@linux.vnet.ibm.com> Signed-off-by:
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Stephen Rothwell authored
These are all powerpc specific drivers. res.start in fsl_elbc_nand.c needs to be cast since it may be either 32 or 64 bit. Thanks to Scott Wood for noticing. Signed-off-by:
Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Arnd Bergmann <arnd@arndb.de> call_edac bits in particular Acked-by: Olof Johansson <olof@lixom.net> pasemi_nand peices Acked-by: Scott Wood <scottwood@freescale.com> fsl_elbc fixes Signed-off-by:
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Josh Boyer authored
Remove some leftover cruft from the arch/ppc days Signed-off-by:
Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by:
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Stephen Rothwell authored
Signed-off-by:
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Benjamin Herrenschmidt authored
Manual merge of: arch/powerpc/configs/44x/warp_defconfig
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Benjamin Herrenschmidt authored
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Casey Schaufler authored
Given just how hard it is to find the code that uses MAY_APPEND it's probably not a big surprise that this went unnoticed for so long. The Smack rules loading code is incorrectly setting the MAY_READ bit when MAY_APPEND is requested. Signed-off-by:
Casey Schaufler <casey@schaufler-ca.com> Reviewed-by:
James Morris <jmorris@namei.org> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (36 commits) USB: Driver for Freescale QUICC Engine USB Host Controller USB: option: add QUANTA HSDPA Data Card device ids USB: storage: Add another unusual_dev for off-by-one bug USB: unusual_dev: usb-storage needs to ignore a device USB: GADGET: fix !x & y USB: new id for ti_usb_3410_5052 driver USB: cdc-acm: Add another conexant modem to the quirks USB: 'option' driver - onda device MT503HS has wrong id USB: Remove ZTE modem from unusual_devices USB: storage: support of Dane-Elec MediaTouch USB device USB: usbmon: Implement compat_ioctl USB: add kernel-doc for wusb_dev in struct usb_device USB: ftdi_sio driver support of bar code scanner from Diebold USB: ftdi_sio: added Alti-2 VID and Neptune 3 PID USB: cp2101 device USB: usblp.c: add USBLP_QUIRK_BIDIR to Brother HL-1440 USB: remove vernier labpro from ldusb USB: CDC-ACM quirk for MTK GPS USB: cdc-acm: support some gps data loggers USB: composite: Fix bug: low byte of w_index is the usb interface number not the whole 2 bytes of w_index ...
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Anton Vorontsov authored
This patch adds support for the FHCI USB controller, as found in the Freescale MPC836x and MPC832x processors. It can support Full or Low speed modes. Quite a lot the hardware is doing by itself (SOF generation, CRC generation and checking), though scheduling and retransmission is on software's shoulders. This controller does not integrate the root hub, so this driver also fakes one-port hub. External hub is required to support more than one device. Signed-off-by:
Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
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Alex.Cheng@quantatw.com authored
This patch adds the support for the QUANTA Q101 series HSDPA Data Card. With the vendor and product IDs are set properly, the data card can be detected and works fine. Signed-off-by:
Alex Cheng <alex.cheng@quantatw.com> Signed-off-by:
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Phil Dibowitz authored
Argosy has released another device with the off-by-one sector. This is a harddrive with an internal cardreader which is affected. Based on a patch written by Martijn Hijdra <martijn.hijdra@gmail.com> Signed-off-by:
Phil Dibowitz <phil@ipom.com> Cc: Martijn Hijdra <martijn.hijdra@gmail.com> Signed-off-by:
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Phil Dibowitz authored
This patch adds an unusual_devs entry for a Sony Ericsson modem. Like many other modems, we have to ignore the storage device in order to access the modem. At this time usb_modeswitch does not work with this device. Reported-by: The Solutor <thesolutor@gmail.com>. Signed-off-by:
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Roel Kluin authored
! has a higher precedence than & Signed-off-by:
Roel Kluin <roel.kluin@gmail.com> Acked-by:
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Oliver Neukum authored
This adds a new device id Signed-off-by:
Oliver Neukum <oneukum@suse.de> Signed-off-by:
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Alan Cox authored
Another Conexant, another device with the same quirk Signed-off-by:
Alan Cox <alan@redhat.com> Acked-by:
Oliver Neukum <oliver@neukum.org> Signed-off-by:
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