20 Oct, 2008
1 commit
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We currently only provide points that have to wait on contention, also
lists the points we have to wait for.Signed-off-by: Peter Zijlstra
Signed-off-by: Ingo Molnar
30 Sep, 2008
1 commit
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This patch helped me out with a problem I recently had....
Basically, when the kernel lock is held, then preempt_count underflow does not
get detected until it is released which may be a long time (and arbitrarily,
eg at different points it may be rescheduled). If the bkl is released at
schedule, the resulting output is actually fairly cryptic...With any other lock that elevates preempt_count, it is illegal to schedule
under it (which would get found pretty quickly). bkl allows scheduling with
preempt_count elevated, which makes underflows hard to debug.Signed-off-by: Ingo Molnar
23 Sep, 2008
2 commits
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Some recent modification to this code made me notice the little todo mark.
Now that we have more elaborate 64-bit division functions this isn't hard.Signed-off-by: Peter Zijlstra
Signed-off-by: Ingo Molnar
22 Sep, 2008
7 commits
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* 'hwmon-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
hwmon: (ad7414) Make ad7414_update_device() static
hwmon: (it87) Fix fan tachometer reading in IT8712F rev 0x7 (I)
hwmon: (atxp1) Fix device detection logic -
* 'kvm-updates/2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm:
KVM: ia64: 'struct fdesc' build fix -
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
[MIPS] vmlinux.lds.S: handle .text.*
[MIPS] Fix potential latency problem due to non-atomic cpu_wait.
[MIPS] SMTC: Clear TIF_FPUBOUND on clone / fork.
[MIPS] Fix 64-bit IP checksum code -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc:
mmc_test: initialize mmc_test_lock statically
mmc_block: handle error from mmc_register_driver()
atmel-mci: Set MMC_CAP_NEEDS_POLL if no detect_pin
atmel-mci: Fix bogus debugfs file size
atmel-mci: Fix memory leak in atmci_regs_show
atmel-mci: debugfs: enable clock before dumping regs
tmio_mmc: fix compilation with debug enabled -
* Normalize some S: entries to match the enumeration at the beginning
of the file.
* Change one mailing list entry from S: to L:.Signed-off-by: Jean Delvare
Signed-off-by: Linus Torvalds -
* Drop trailing whitespace.
* Replace spaces and combinations of spaces and tabs by single tabs.Signed-off-by: Jean Delvare
Signed-off-by: Linus Torvalds
21 Sep, 2008
4 commits
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The -ffunction-sections puts each text in .text.function_name section.
Without this patch, most functions are placed outside _text..._etext
area and it breaks show_stacktrace(), etc.Signed-off-by: Atsushi Nemoto
Signed-off-by: Ralf Baechle -
If an interrupt happened between checking of NEED_RESCHED and WAIT
instruction, adjust EPC to restart from checking of NEED_RESCHED.Signed-off-by: Atsushi Nemoto
Signed-off-by: Ralf Baechle -
Signed-off-by: Ralf Baechle
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Use unsigned loads to avoid possible misscalculation of IP checksums. This
bug was instruced in f761106cd728bcf65b7fe161b10221ee00cf7132 (lmo) /
ed99e2bc1dc5dc54eb5a019f4975562dbef20103 (kernel.org).[Original fix by Atsushi. Improved instruction scheduling and fix for
unaligned unsigned load by me -- Ralf]Signed-off-by: Atsushi Nemoto
Signed-off-by: Ralf Baechle
20 Sep, 2008
25 commits
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The mutex mmc_test_lock is initialized at every time mmc_test device
is probed. Probing another mmc_test device may break the mutex, if
the probe function is called while the mutex is locked.This patch fixes it by statically initializing mmc_test_lock.
Signed-off-by: Akinobu Mita
Signed-off-by: Pierre Ossman -
Check error from mmc_register_driver() and properly unwind
block device registration.Signed-off-by: Akinobu Mita
Signed-off-by: Pierre Ossman -
This allows the mmc core to detect card insertion/removal for slots that
don't have any CD pin wired up.Signed-off-by: Haavard Skinnemoen
Signed-off-by: Pierre Ossman -
We used to store a binary register snapshot in the "regs" file, so we
set the file size to be the size of this snapshot. This is no longer
valid since we switched to using seq_file.Signed-off-by: Haavard Skinnemoen
Signed-off-by: Pierre Ossman -
The debugfs hook atmci_regs_show allocates a temporary buffer for
storing a register snapshot, but it doesn't free it before returning.
Plug this leak.Signed-off-by: Haavard Skinnemoen
Signed-off-by: Pierre Ossman -
Make sure that the peripheral clock is enabled before reading the MMIO
registers for the debugfs "regs" dump.Signed-off-by: Haavard Skinnemoen
Signed-off-by: Pierre Ossman -
Signed-off-by: Dmitry Baryshkov
Acked-by: Ian Molton
Signed-off-by: Pierre Ossman -
This patch makes the needlessly global ad7414_update_device() static.
Signed-off-by: Adrian Bunk
Acked-by: Sean MacLennan
Signed-off-by: Jean Delvare -
The IT8712F v0.9.1 datasheet applies to revisions >= 0x8 (J).
The driver was incorrectly attempting to enable 16-bit fan
readings on rev 0x7 (I) which led to incorrect RPM values.Signed-off-by: Andrew Paprocki
Tested-by: John Gumb
Signed-off-by: Jean Delvare -
The atxp1 device detection code has a major logic flaw, fix it. Not
sure how we managed to miss this when the driver was merged...Signed-off-by: Jean Delvare
Acked-by: Sebastian Witt -
Commit 4611a77 ("[IA64] fix compile failure with non modular builds")
introduced struct fdesc into asm/elf.h, which duplicates KVM's definition.
Remove the latter to avoid the build error.Signed-off-by: Jes Sorensen
Acked-by: Tony Luck
Signed-off-by: Avi Kivity -
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
[S390] cio: fix orb initialization in cio_start_key
[S390] cio: Fix driver_data handling for ccwgroup devices. -
* git://oss.sgi.com:8090/xfs/linux-2.6:
[XFS] Don't do I/O beyond eof when unreserving space
[XFS] Fix use-after-free with buffers
[XFS] Prevent lockdep false positives when locking two inodes.
[XFS] Fix barrier status change detection.
[XFS] Prevent direct I/O from mapping extents beyond eof
[XFS] Fix regression introduced by remount fixup
[XFS] Move memory allocations for log tracing out of the critical path -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IPoIB: Fix deadlock on RTNL between bcast join comp and ipoib_stop()
RDMA/nes: Fix client side QP destroy
IB/mlx4: Fix up fast register page list format
mlx4_core: Set RAE and init mtt_sz field in FRMR MPT entries -
…l/git/tip/linux-2.6-tip
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
sched: fix deadlock in setting scheduler parameter to zero
sched: fix 2.6.27-rc5 couldn't boot on tulsa machine randomly -
…el/git/tip/linux-2.6-tip
* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
clockevents: make device shutdown robust
clocksource, acpi_pm.c: fix check for monotonicity
clockevents: remove WARN_ON which was used to gather information -
…git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: completely disable NOPL on 32 bits
x86/paravirt: Remove duplicate paravirt_pagetable_setup_{start, done}()
xen: fix for xen guest with mem > 3.7G
x86: fix possible x86_64 and EFI regression
arch/x86/kernel/kdebugfs.c: introduce missing kfree -
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
Fix compile failure with non modular builds
powerpc: Holly board needs dtbImage target
powerpc: Fix interrupt values for DMA2 in MPC8610 HPCD device tree -
* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 5255/1: Update jornada ssp to remove build errors/warnings
[ARM] omap: back out 'internal_clock' support
[ARM] 5249/1: davinci: remove redundant check in davinci_psc_config() -
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6:
avr32: nmi_enter() without nmi_exit()
avr32: fix sys_sync_file_range() call convention
avr32: add generic_find_next_le_bit bit function
avr32: add .gitignore files
atstk1000: fix build breakage with BOARD_ATSTK100X_SW2_CUSTOM=y -
* 'for-linus' of git://neil.brown.name/md:
md: Don't wait UNINTERRUPTIBLE for other resync to finish -
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc64: Fix SMP bootup with CONFIG_STACK_DEBUG or ftrace.
sparc64: Fix OOPS in psycho_pcierr_intr_other(). -
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
e100: Use pci_pme_active to clear PME_Status and disable PME#
e1000: prevent corruption of EEPROM/NVM
forcedeth: call restore mac addr in nv_shutdown path
bnx2: Promote vector field in bnx2_irq structure from u16 to unsigned int
sctp: Fix oops when INIT-ACK indicates that peer doesn't support AUTH
sctp: do not enable peer features if we can't do them.
sctp: set the skb->ip_summed correctly when sending over loopback.
udp: Fix rcv socket locking -
While updating the rcu code, I noticed that do_nmi() for AVR32 is odd:
There is an nmi_enter() call without an nmi_exit().
This can't be correct, it breaks rcu (at least the preempt version) and
lockdep.[haavard.skinnemoen@atmel.com: fixed another case that returned directly]
Signed-off-by: Haavard Skinnemoen -
On AVR32, all parameters beyond the 5th are passed on the stack. System
calls don't use the stack -- they borrow a callee-saved register
instead. This means that syscalls that take 6 parameters must be called
through a stub that pushes the last parameter on the stack.This patch adds a stub for sync_file_range syscall on AVR32
architecture. Tested with uClibc snapshot.Signed-off-by: Hans-Christian Egtvedt
Signed-off-by: Haavard Skinnemoen
