01 Oct, 2009
31 commits
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While 32-bit processes can't directly access R8...R15, they can
gain access to these registers by temporarily switching themselves
into 64-bit mode.Therefore, registers not preserved anyway by called C functions
(i.e. R8...R11) must be cleared prior to returning to user mode.Signed-off-by: Jan Beulich
Cc:
LKML-Reference:
Signed-off-by: Ingo Molnar -
Remove unused CONFIG FAST_CMPXCHG_LOCAL from Kconfig.
Reported-by: Robert P. J. Day
Signed-off-by: Jaswinder Singh Rajput
Acked-by: Christoph Lameter
Cc: Pekka Enberg
Cc: Matt Mackall
Cc: Andrew Morton
Cc: "Robert P. J. Day"
Cc: linux-mm@kvack.org
LKML-Reference:
Signed-off-by: Ingo Molnar -
Commit c953094 ("early_printk: Allow more than one early console")
introduced a regression in the parsing of the earlyprintk= kernel
arguments.If you specify "earlyprintk=serial,ttyS0,115200" as a kernel
argument, the "serial,ttyS" should be parsed as a single argument
and not as "serial" and then "ttyS".Also update the documentation to reflect you can specify the ttyS
directly without the "serial" argument.Signed-off-by: Jason Wessel
Cc: Len Brown
Cc: Greg KH
Cc: Linus Torvalds
Cc: Andrew Morton
Cc: Johannes Weiner
LKML-Reference:
Signed-off-by: Ingo Molnar -
Conditionaly compile cmpxchg8b_emu.o and EXPORT_SYMBOL(cmpxchg8b_emu).
This reduces the kernel size a bit.
Signed-off-by: Eric Dumazet
Cc: Arjan van de Ven
Cc: Martin Schwidefsky
Cc: John Stultz
Cc: Peter Zijlstra
Cc: Linus Torvalds
LKML-Reference:
Signed-off-by: Ingo Molnar -
Just like ip_fast_csum, the assembly snippet in csum_ipv6_magic needs a
memory clobber, as it is only passed the address of the buffer, not a
memory reference to the buffer itself.This caused failures in Hurd's pfinetv4 when we tried to compile it with
gcc-4.3 (bogus checksums).Signed-off-by: Samuel Thibault
Acked-by: David S. Miller
Cc: Andi Kleen
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: H. Peter Anvin
Signed-off-by: Ingo Molnar -
Try to avoid the 'alternates()' code when we can statically
determine that cmpxchg8b is fine. We already have that
CONFIG_x86_CMPXCHG64 (enabled by PAE support), and we could easily
also enable it for some of the CPU cases.Note, this patch only adds CMPXCHG8B for the obvious Intel CPU's,
not for others. (There was something really messy about cmpxchg8b
and clone CPU's, so if you enable it on other CPUs later, do it
carefully.)If we avoid that asm-alternative thing when we can assume the
instruction exists, we'll generate less support crud, and we'll
avoid the whole issue with that extra 'nop' for padding instruction
sizes etc.LKML-Reference:
Signed-off-by: Ingo Molnar -
…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_clock: Fix atomicity/continuity bug by using cmpxchg64()
x86: Provide an alternative() based cmpxchg64() -
Commit def0a9b2573 (sched_clock: Make it NMI safe) assumed
cmpxchg() of 64bit values was available on X86_32.That is not so - and causes some subtle scheduler misbehavior due
to incorrect timestamps off to up by ~4 seconds.Two symptoms are known right now:
- interactivity problems seen by Arjan: up to 600 msecs
latencies instead of the expected 20-40 msecs. These
latencies are very visible on the desktop.- incorrect CPU stats: occasionally too high percentages in 'top',
and crazy CPU usage stats.Reported-by: Martin Schwidefsky
Signed-off-by: Eric Dumazet
Signed-off-by: Arjan van de Ven
Acked-by: Linus Torvalds
Cc: John Stultz
Cc: Peter Zijlstra
LKML-Reference:
Signed-off-by: Ingo Molnar -
cmpxchg64() today generates, to quote Linus, "barf bag" code.
cmpxchg64() is about to get used in the scheduler to fix a bug there,
but it's a prerequisite that cmpxchg64() first be made non-sucking.This patch turns cmpxchg64() into an efficient implementation that
uses the alternative() mechanism to just use the raw instruction on
all modern systems.Note: the fallback is NOT smp safe, just like the current fallback
is not SMP safe. (Interested parties with i486 based SMP systems
are welcome to submit fix patches for that.)Signed-off-by: Arjan van de Ven
Acked-by: Linus Torvalds
[ fixed asm constraint bug ]
Fixed-by: Eric Dumazet
Cc: Martin Schwidefsky
Cc: John Stultz
Cc: Peter Zijlstra
LKML-Reference:
Signed-off-by: Ingo Molnar -
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
MIPS: Avoid spurious make includecheck message
MIPS: VPE: Get rid of BKL.
MIPS: VPE: Fix build after the credential changes a while ago.
MIPS: Excite: Get rid of BKL.
MIPS: Sibyte: Get rid of BKL.
MIPS: BCM63xx: Add PCMCIA & Cardbus support.
MIPS: MSP71xx: request_irq() failure ignored in msp_pcibios_config_access()
MIPS: Decrease size of au1xxx_dbdma_pm_regs[][]
MIPS: SMP: Inline arch_send_call_function_{single_ipi,ipi_mask}
MIPS: SMP: Fix build.
MIPS: MIPSxx SC: Avoid destructive invalidation on partial L2 cachelines.
MIPS: Sibyte: Fix compilation error.
MIPS: BCM1480: Re-apply patch lost due to bad resolution of merge conflict.
MIPS: BCM63xx: Add serial driver for bcm63xx integrated UART.
MIPS: Loongson2: Fix typo "enalbe" -> "enable"
MIPS: SMTC: Remove duplicate structure field initialization
MIPS: Remove duplicated #include
MIPS: BCM63xx: Remove duplicated #include -
arch/mips/include/asm/unaligned.h: linux/unaligned/generic.h is included more than once.
Entirely legitimate but just noise.
Signed-off-by: Ralf Baechle
-
Signed-off-by: Ralf Baechle
-
Signed-off-by: Ralf Baechle
-
It's not obvious what good it was supposed to do here anyway.
Signed-off-by: Ralf Baechle
-
Signed-off-by: Ralf Baechle
-
Signed-off-by: Maxime Bizon
Reviewed-by: Wolfram Sang
Signed-off-by: Ralf Baechle -
Produce an error if request_irq() fails.
Signed-off-by: Roel Kluin
Cc: "Ithamar R. Adema"
Signed-off-by: Andrew Morton
Signed-off-by: Ralf Baechle -
There are 16 individual channels (NUM_DBDMA_CHANS) to save/restore plus the
global ddma block config (the +1). The last register in a channel can be
skipped since it's read-only (at offset 0x18).Signed-off-by: Roel Kluin
Cc: Manuel Lauss
Signed-off-by: Andrew Morton
Signed-off-by: Ralf Baechle -
Signed-off-by: Ralf Baechle
-
commit 48a048fed82a8e5fdd8618574f6d3de1a0d67a50
Author: Rusty Russell
Date: Thu Sep 24 09:34:44 2009 -0600apparently only passed the "looks good" level of QA ;-)
Signed-off-by: Ralf Baechle
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This extends commit a8ca8b64e3fdfec17679cba0ca5ce6e3ffed092d to cover
MIPSxx-style board cache code.Signed-off-by: Kevin Cernekee
Signed-off-by: Ralf Baechle -
Build error introduced by d4f587c67fc39e0030ddd718675e252e208da4d7.
Signed-off-by: Mark Mason
Signed-off-by: Ralf Baechle -
Patch 14275ccdb1e4b487cca745aba994699c426a31ee and
d5dedd4507d307eb3f35f21b6e16f336fdc0d82a are conflicting and the
conflict was resolved badly in merge
92241940be501f798cb21db344bbb3d1ec3c4f1c resulting in the BCM1480 changes
of 14275ccdb1e4b487cca745aba994699c426a31ee getting lost. Sort out the
damage.Reported and initial patch by Mark Mason .
Signed-off-by: Ralf Baechle
-
Signed-off-by: Maxime Bizon
Acked-by: Greg Kroah-Hartman
Signed-off-by: Ralf Baechle -
Signed-off-by: Uwe Kleine-König
Cc: Yanhua
Cc: Robert Richter
Acked-by: Wu Zhangjin
Signed-off-by: Ralf Baechle -
The definition of the irq_ipi structure has two initializations of the
flags field. This combines them.[Ralf: The issue was originally introduced by commit
be4894196d79455f420dd7bb78be7dc73bec115c (linux-mips.org) rsp.
033890b084adfa367c544864451d7730552ce8bf (kernel.org). The original
intention of the code was to initialize .flags with both flags ored together.
The broken C code as actually implemented will be compiled by an equally
broken gcc to use only the last initialization, that is IRQF_PERCPU
which means this turned into an SMTC bug for 2.6.23 and newer.]The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)//
@r@
identifier I, s, fld;
position p0,p;
expression E;
@@struct I s =@p0 { ... .fld@p = E, ...};
@s@
identifier I, s, r.fld;
position r.p0,p;
expression E;
@@struct I s =@p0 { ... .fld@p = E, ...};
@script:python@
p0 << r.p0;
fld << r.fld;
ps << s.p;
pr << r.p;
@@if int(ps[0].line)!=int(pr[0].line) or int(ps[0].column)!=int(pr[0].column):
cocci.print_main(fld,p0)
//Signed-off-by: Julia Lawall
Signed-off-by: Ralf Baechle -
Remove duplicated #include in arch/mips/kernel/smp.c.
Signed-off-by: Huang Weiyi
Signed-off-by: Ralf Baechle -
Remove duplicated #include in arch/mips/bcm63xx/boards/board_bcm963xx.c.
Signed-off-by: Huang Weiyi
Signed-off-by: Ralf Baechle -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2:
nilfs2: fix missing initialization of i_dir_start_lookup member
nilfs2: fix missing zero-fill initialization of btree node cache -
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: Fix time encoding with extra epoch bits
ext4: Add a stub for mpage_da_data in the trace header
jbd2: Use tracepoints for history file
ext4: Use tracepoints for mb_history trace file
ext4, jbd2: Drop unneeded printks at mount and unmount time
ext4: Handle nested ext4_journal_start/stop calls without a journal
ext4: Make sure ext4_dirty_inode() updates the inode in no journal mode
ext4: Avoid updating the inode table bh twice in no journal mode
ext4: EXT4_IOC_MOVE_EXT: Check for different original and donor inodes first
ext4: async direct IO for holes and fallocate support
ext4: Use end_io callback to avoid direct I/O fallback to buffered I/O
ext4: Split uninitialized extents for direct I/O
ext4: release reserved quota when block reservation for delalloc retry
ext4: Adjust ext4_da_writepages() to write out larger contiguous chunks
ext4: Fix hueristic which avoids group preallocation for closed files
ext4: Use ext4_msg() for ext4_da_writepage() errors
ext4: Update documentation about quota mount options -
* git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6:
fat: Check s_dirt in fat_sync_fs()
vfat: change the default from shortname=lower to shortname=mixed
fat/nls: Fix handling of utf8 invalid char
30 Sep, 2009
9 commits
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* 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
PM / yenta: Fix cardbus suspend/resume regression
PM / PCMCIA: Drop second argument of pcmcia_socket_dev_suspend() -
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (33 commits)
sony-laptop: re-read the rfkill state when resuming from suspend
sony-laptop: check for rfkill hard block at load time
wext: add back wireless/ dir in sysfs for cfg80211 interfaces
wext: Add bound checks for copy_from_user
mac80211: improve/fix mlme messages
cfg80211: always get BSS
iwlwifi: fix 3945 ucode info retrieval after failure
iwlwifi: fix memory leak in command queue handling
iwlwifi: fix debugfs buffer handling
cfg80211: don't set privacy w/o key
cfg80211: wext: don't display BSSID unless associated
net: Add explicit bound checks in net/socket.c
bridge: Fix double-free in br_add_if.
isdn: fix netjet/isdnhdlc build errors
atm: dereference of he_dev->rbps_virt in he_init_group()
ax25: Add missing dev_put in ax25_setsockopt
Revert "sit: stateless autoconf for isatap"
net: fix double skb free in dcbnl
net: fix nlmsg len size for skb when error bit is set.
net: fix vlan_get_size to include vlan_flags size
... -
* 'drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (25 commits)
drm/radeon/kms: Convert R520 to new init path and associated cleanup
drm/radeon/kms: Convert RV515 to new init path and associated cleanup
drm: fix radeon DRM warnings when !CONFIG_DEBUG_FS
drm: fix drm_fb_helper warning when !CONFIG_MAGIC_SYSRQ
drm/r600: fix memory leak introduced with 64k malloc avoidance fix.
drm/kms: make fb helper work for all drivers.
drm/radeon/r600: fix offset handling in CS parser
drm/radeon/kms/r600: fix forcing pci mode on agp cards
drm/radeon/kms: fix for the extra pages copying.
drm/radeon/kms/r600: add support for vline relocs
drm/radeon/kms: fix some bugs in vline reloc
drm/radeon/kms/r600: clamp vram to aperture size
drm/kms: protect against fb helper not being created.
drm/r600: get values from the passed in IB not the copy.
drm: create gitignore file for radeon
drm/radeon/kms: remove unneeded master create/destroy functions.
drm/kms: start adding command line interface using fb.
fb: change rules for global rules match.
drm/radeon/kms: don't require up to 64k allocations. (v2)
drm/radeon/kms: enable dac load detection by default.
...Trivial conflicts in drivers/gpu/drm/radeon/radeon_asic.h due to adding
'->vga_set_state' function pointers. -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
percpu: make allocation failures more verbose
percpu: make pcpu_setup_first_chunk() failures more verbose
percpu: make embedding first chunk allocator check vmalloc space size
sparc64: implement page mapping percpu first chunk allocator
percpu: make pcpu_build_alloc_info() clear static buffers
percpu: fix unit_map[] verification in pcpu_setup_first_chunk() -
…/git/tmlind/linux-omap-2.6
* 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6:
omap: Fix wrong condition check in while loop for mailbox and iommu2
omap: rng: Use resource_size instead of manual calculation
omap: Fix MMC gpio_wp for BeagleBoard C2 and above
omap: Fix matrix_keymap_data usage
omap: Fix a OMAP_MPUIO_VBASE typo for 850
omap: Fix wrong jtag_id for 850
omap: iovmm: Fix compiler warning
omap: mailbox: Flush posted write when acking mailbox irq
omap: mailbox: Execute softreset at startup
omap: Add missing mux pin for EHCI phy reset line
omap: Fix 44xx compile
omap: Fix mcspi compile for 2420
omap: Fix compile for arch/arm/mach-omap2 -
David Howells noticed (due to the compiler warning about an unused
'pty_ops_bsd' variable) that we haven't actually been using the code
that implements TIOCSPTLCK for legacy pty handling. It's been that way
since 2.6.26, commit 3e8e88ca053150efdbecb45d8f481cf560ec808d to be
exact ("pty: prepare for tty->ops changes").DavidH initially submitted a patch just removing the dead code entirely,
and since nobody has apparently ever complained, I'm not entirely sure
that wouldn't be the right thing to do. But since the whole and only
point of the legacy pty code is to be compatible with legacy distros
that don't use the new unix98 pty model, let's just wire it up again.And clean it up a bit while we're at it.
Acked-by: David Howells
Cc: Alan Cox
Signed-off-by: Linus Torvalds -
This reverts commit 22223c9b417be5fd0ab2cf9ad17eb7bd1e19f7b9, as
requested by Andi Kleen:"Obviously kernels compiled with AMD support can still run on non AMD
systems, so messages like this can never be removed at compile time."Requsted-by: Andi Kleen
Cc: Borislav Petkov
Signed-off-by: Linus Torvalds -
"Looking at ext4.h, I think the setting of extra time fields forgets to
mask the epoch bits so the epoch part overwrites nsec part. The second
change is only for coherency (2 -> EXT4_EPOCH_BITS)."Thanks to Damien Guibouret for pointing out this problem.
Signed-off-by: "Theodore Ts'o"
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The tracepoint ext4_da_write_pages has a struct mpage_da_data*
parameter, but that struct is only defined in fs/ext4/ext4.h. This
patch adds a forward declaration for that struct, so this tracepoint
header can still be used by tools like SystemTap.This is a continuation of the fix in commit 3661d286.
http://sourceware.org/bugzilla/show_bug.cgi?id=10703
Signed-off-by: Josh Stone
Signed-off-by: "Theodore Ts'o"
