- 30 Jan, 2009 40 commits
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Jeremy Fitzhardinge authored
Impact: Optimization Several paravirt ops implementations simply return their arguments, the most obvious being the make_pte/pte_val class of operations on native. On 32-bit, the identity function is literally a no-op, as the calling convention uses the same registers for the first argument and return. On 64-bit, it can be implemented with a single "mov". This patch adds special identity functions for 32 and 64 bit argument, and machinery to recognize them and replace them with either nops or a mov as appropriate. At the moment, the only users for the identity functions are the pagetable entry conversion functions. The result is a measureable improvement on pagetable-heavy benchmarks (2-3%, reducing the pvops overhead from 5 to 2%). Signed-off-by:
Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by:
H. Peter Anvin <hpa@zytor.com>
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Jeremy Fitzhardinge authored
Impact: Cleanup Move remaining mmu-related stuff into mmu.c. A general cleanup, and lay the groundwork for later patches. Signed-off-by:
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H. Peter Anvin authored
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Ingo Molnar authored
Conflicts: kernel/irq/handle.c
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git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: cifs: make sure we allocate enough storage for socket address [CIFS] Make socket retry timeouts consistent between blocking and nonblocking cases [CIFS] some cleanup to dir.c prior to addition of posix_open [CIFS] revalidate parent inode when rmdir done within that directory [CIFS] Rename md5 functions to avoid collision with new rt modules cifs: turn smb_send into a wrapper around smb_sendv
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Alexander Beregalov authored
Commit e57db7bd (SATA Sil: Blacklist system that spins off disks during ACPI power off) breaks build like the following, in both cases when CONFIG_DMI set or not. 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 sata_sil.c should include dmi.h Signed-off-by:
Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Bill Nottingham authored
btrfs requires version 0.18 of its tools, and squashfs requires 4.0. ext3 should use and ext4 requires v1.41.4 of e2fsprogs. Signed-off-by:
Bill Nottingham <notting@redhat.com> Signed-off-by:
Randy Dunlap <randy.dunlap@oracle.com> cc: Ted Tso <tytso@mit.edu> Signed-off-by:
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Dan Carpenter authored
I don't think emacs understands tilde expansion, so use "expand-file-name" to do that. Signed-off-by:
Dan Carpenter <error27@gmail.com> Signed-off-by:
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Teemu Likonen authored
With the previous Emacs tips example the kernel style was made available for files in the kernel-tree only. This patch updates the tip to add a separate cc-mode indent style ("linux-tabs-only"). This makes it easy to switch between different indent styles and also makes the kernel style easily available for any filetype mode (c++, awk, ...) that is managed by the Emacs cc-mode. Signed-off-by:Teemu Likonen <tlikonen@iki.fi> Signed-off-by:
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Randy Dunlap authored
Move DMA-mapping.txt to Documentation/PCI/. DMA-mapping.txt was supposed to be moved from Documentation/ to Documentation/PCI/. The 00-INDEX files in those two directories were updated, along with a few other text files, but the file itself somehow escaped being moved, so move it and update more text files and source files with its new location. Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de> cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: Staging: poch: fix verification of memory area Staging: usbip: usbip_start_threads(): handle kernel_thread failure staging: agnx: drivers/staging/agnx/agnx.h needs <linux/io.h> Staging: android: task_get_unused_fd_flags: fix the wrong usage of tsk->signal Staging: android: Add lowmemorykiller documentation. Staging: android: fix build error on 64bit boxes Staging: android: timed_gpio: Fix build to build on kernels after 2.6.25. Staging: android: binder: fix arm build errors Staging: meilhaus: fix Kbuild Staging: comedi: fix Kbuild
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: driver-core: fix kernel-doc parameter name UIO: Add missing documentation of features added recently Sync patch for jp_JP/stable_kernel_rules.txt
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6Linus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ASoC: OMAP: Initialize XCCR and RCCR registers in McBSP DAI driver ASoC: Fix null string usage with WM8753 DAIs ALSA: hda - add another MacBook Pro 4, 1 subsystem ID ALSA: hda - Fix compile warning with CONFIG_SND_JACK=n ALSA: hda - Add quirk for HP DV6700 laptop ALSA: hda - Fix PCM reference NID for STAC/IDT analog outputs
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git://git.infradead.org/ubi-2.6Linus Torvalds authored
* 'linux-next' of git://git.infradead.org/ubi-2.6: UBI: allow direct user-space I/O UBI: fix resource de-allocation UBI: remove unused variable UBI: use nicer 64-bit math UBI: add ioctl compatibility UBI: constify file operations UBI: allow all ioctls UBI: remove unnecessry header inclusion UBI: improve ioctl commentaries UBI: add ioctl for is_mapped operation UBI: add ioctl for unmap operation UBI: add ioctl for map operation
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hidLinus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: document difference between hid_blacklist and hid_ignore_list HID: add antec-branded soundgraph imon devices to blacklist HID: fix reversed logic in disconnect testing of hiddev HID: adjust report descriptor fixup for MS 1028 receiver
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git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linusLinus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: lguest: Fix a memory leak with the lg object during launcher close lguest: disable the FORTIFY for lguest. lguest: typos fix
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git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6Linus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: ieee1394: sbp2: add workarounds for 2nd and 3rd generation iPods firewire: sbp2: add workarounds for 2nd and 3rd generation iPods firewire: sbp2: fix DMA mapping leak on the failure path firewire: sbp2: define some magic numbers as macros firewire: sbp2: fix payload limit at S1600 and S3200 ieee1394: sbp2: don't assume zero model_id or firmware_revision if there is none ieee1394: sbp2: fix payload limit at S1600 and S3200 ieee1394: sbp2: update a help string ieee1394: support for speeds greater than S800 firewire: core: optimize card shutdown ieee1394: ohci1394: increase AT req. retries, fix ack_busy_X from Panasonic camcorders and others firewire: ohci: increase AT req. retries, fix ack_busy_X from Panasonic camcorders and others firewire: ohci: change "context_stop: still active" log message firewire: keep highlevel drivers attached during brief connection loss firewire: unnecessary BM delay after generation rollover firewire: insist on successive self ID complete events
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Andrew Morton authored
s/unlock/lock/ Addresses http://bugzilla.kernel.org/show_bug.cgi?id=12575Reported-by:
Daniel Vetter <daniel@ffwll.ch> Cc: Dave Airlie <airlied@linux.ie> Acked-by:
Jesse Barnes <jbarnes@virtuousgeek.org> Cc: Eric Anholt <eric@anholt.net> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Davide Libenzi authored
Linus suggested to put limits where the money is, and max_user_watches already does that w/out the need of max_user_instances. That has the advantage to mitigate the potential DoS while allowing pretty generous default behavior. Allowing top 4% of low memory (per user) to be allocated in epoll watches, we have: LOMEM MAX_WATCHES (per user) 512MB ~178000 1GB ~356000 2GB ~712000 A box with 512MB of lomem, will meet some challenge in hitting 180K watches, socket buffers math teaches us. No more max_user_instances limits then. Signed-off-by:
Davide Libenzi <davidel@xmailserver.org> Cc: Willy Tarreau <w@1wt.eu> Cc: Michael Kerrisk <mtk.manpages@googlemail.com> Cc: Bron Gondwana <brong@fastmail.fm> Cc: <stable@kernel.org> Signed-off-by:
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Frans Pop authored
If the initial state is not set when the input device is set up, the first docking event after the module is loaded will be lost. Signed-off-by:
Frans Pop <elendil@planet.nl> Acked-by:
Matthew Garrett <mjg59@srcf.ucam.org> Signed-off-by:
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Bharath Ramesh authored
MacPro 3 have more temperature sensors than the previous MacPro's also the sensor THTG has been removed. This patch add supports for the newer temperature sensors in the MacPro3. Signed-off-by:
Bharath Ramesh <bramesh@vt.edu> Signed-off-by:
Henrik Rydberg <rydberg@euromail.se> Signed-off-by:
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David Altobelli authored
Bump hpilo module version to indicate that the open/close bug is fixed. Signed-off-by:
David Altobelli <david.altobelli@hp.com> Signed-off-by:
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Paul Menage authored
root_count was being incremented in cgroup_get_sb() after all error checking was complete, but decremented in cgroup_kill_sb(), which can be called on a superblock that we gave up on due to an error. This patch changes cgroup_kill_sb() to only decrement root_count if the root was previously linked into the list of roots. Signed-off-by:
Paul Menage <menage@google.com> Tested-by:
Serge Hallyn <serue@us.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by:
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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:
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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:
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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