Commit Graph

9923 Commits

Author SHA1 Message Date
Jens Axboe
ba1f188cae [PARISC] Add new ioprio_{set,get} syscalls
add syscall entries for ioprio_set/get as per Jens Axboe.

Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:45:57 -04:00
Grant Grundler
a366064c3f [PARISC] Update bitops from parisc tree
Optimize ext2_find_next_zero_bit. Gives about 25% perf improvement with a
rsync test with ext3.

Signed-off-by: Randolph Chung <tausq@parisc-linux.org>

fix ext3 performance - ext2_find_next_zero() was culprit.
Kudos to jejb for pointing out the the possibility that ext2_test_bit
and ext2_find_next_zero() may in fact not be enumerating bits in
the bitmap because of endianess. Took sparc64 implementation and
adapted it to our tree. I suspect the real problem is ffz() wants
an unsigned long and was getting garbage in the top half of the
unsigned int. Not confirmed but that's what I suspect.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Fix find_next_bit for 32-bit
Make masking consistent for bitops

From: Joel Soete <soete.joel@tiscali.be>
Signed-off-by: Randolph Chung <tausq@parisc-linux.org>

Add back incorrectly removed ext2_find_first_zero_bit definition

Signed-off-by: James Bottomley <jejb@parisc-linux.org>

Fixup bitops.h to use volatile for *_bit() ops

Based on this email thread:
       http://marc.theaimsgroup.com/?t=108826637900003

In a nutshell:
        *_bit() want use of volatile.
        __*_bit() are "relaxed" and don't use spinlock or volatile.

other minor changes:
o replaces hweight64() macro with alias to generic_hweight64() (Joel Soete)
o cleanup ext2* macros so (a) it's obvious what the XOR magic is about
  and (b) one version that works for both 32/64-bit.
o replace 2 uses of CONFIG_64BIT with __LP64__. bitops.h used both.
  I think header files that might go to user space should use
  something userspace will know about (__LP64__).

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Move SHIFT_PER_LONG to standard location for BITS_PER_LONG (asm/types.h)
and ditch the second definition of BITS_PER_LONG in bitops.h

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:45:22 -04:00
Stuart Brady
2464212f68 [PARISC] Fix parisc_setup_cache_timing to choose a better flush threshold
update comment about CAFL_STRIDE

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

Fixed a bug in parisc_setup_cache_timing() which caused it to calculate
a poor value for parisc_cache_flush_threshold.

Thanks to Joel Soete for spotting the bug.
Thanks to James Bottomley for pointing out the clean way to fix this.

Signed-off-by: Stuart Brady <sdb@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:44:14 -04:00
Kyle McMartin
f053725b89 [PARISC] Add ability for prctl to change unaligned trap behaviour
Add support for changing unaligned trap behaviour on a
per-thread basis.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:43:15 -04:00
Randolph Chung
99ac794799 [PARISC] Replace some calls to bl with b,l or bv to use longer offsets
convert some bl calls to b,l or bv to use longer offsets

Signed-off-by: Randolph Chung <tausq@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:42:57 -04:00
Stuart Brady
3a16568016 [PARISC] Update harmony from parisc tree
o Added a control for the input source (which can be either
  "line" or "mic")

o Mute the speaker/line-out/headphone outputs by default.

o Increased the buffer size from 10 pages to 16.

Signed-off-by: Stuart Brady <sdb@parisc-linux.org>

ALSA Harmony was resetting the capture position when
preparing the capture substream, which it shouldn't do.
This should fix the problem.

Signed-off-by: Stuart Brady <sdb@parisc-linux.org>

ALSA Harmony should no longer play junk (left in the buffers
from a previous stream) at the start of a new stream.

Implement the monitor mixer channel for ALSA Harmony.

Also prevent snd_harmony_volume_get from returning negative values.

Signed-off-by: Stuart Brady <sdb@parisc-linux.org>

Use the graveyard/silence buffers in ALSA Harmony.

Signed-off-by: Stuart Brady <sdb@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:42:38 -04:00
Randolph Chung
5cd55b0ede [PARISC] Take into account nullified insn and lock functions for profiling
export profile_pc() symbol - oprofile needs it when built as a module.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Take into account nullified insn and lock functions for profiling

This is needed at the end of functions; it is typical that the return
branch nullifies the next insn, which is in the next function. This
causes profiling data to show up against the "wrong" function.

We also count lock times against the locker. This is consistent with
other architectures.

Signed-off-by: Randolph Chung <tausq@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:42:18 -04:00
Matthew Wilcox
951a015013 [PARISC] Reorganize sticore probe routine to be a little less convoluted
Fix some whitespace issues
Reorganise parisc_device probe routine to be a little less convoluted
Use ->hpa.start instead of ->hpa

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:41:49 -04:00
Matthew Wilcox
14e256c107 [PARISC] Update spinlocks from parisc tree
Neaten up the CONFIG_PA20 ifdefs

More merge fixes, this time for SMP

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Prettify the CONFIG_DEBUG_SPINLOCK __SPIN_LOCK_UNLOCKED initializers.

Clean up some warnings with CONFIG_DEBUG_SPINLOCK enabled.

Fix build with spinlock debugging turned on. Patch is cleaner like this,
too.

Remove mandatory 16-byte alignment requirement on PA2.0 processors by
using the ldcw,CO completer. Provides a nice insn savings.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:41:25 -04:00
Grant Grundler
04d472dc83 [PARISC] Move pa_tlb_lock to tlb_flush.h
move pa_tlb_lock and it's primary consumers to tlb_flush.h
Future step will be to move spinlock_t definition out of system.h.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:40:24 -04:00
Grant Grundler
896a375623 [PARISC] Make sure use of RFI conforms to PA 2.0 and 1.1 arch docs
2.6.12-rc4-pa3 : first pass at making sure use of RFI conforms to
PA 2.0 arch pages F-4 and F-5, PA 1.1 Arch page 3-19 and 3-20.

The discussion revolves around all the rules for clearing PSW Q-bit.
The hard part is meeting all the rules for "relied upon translation".

.align directive is used to guarantee the critical sequence ends more than
8 instructions (32 bytes) from the end of page.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:40:07 -04:00
Grant Grundler
b2c1fe81df [PARISC] Allow STI_CONSOLE access to some FONTS
add || STI_CONSOLE to some of the basic FONTs. May need to get at
least one of them to default to "Y" for parisc.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:39:43 -04:00
Matthew Wilcox
92b919fe46 [PARISC] Update dino from parisc tree
Fix card-mode Dino crashes on 725 (and probably other Snake) systems.
Dino was coming up in fatal mode after a warm reboot.  Resetting Dino
brings it out of fatal mode, so do that if the status register indicates
we're in fatal mode.  Since this was never observed on any later systems,
I presume firmware does this for us on those.

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Add debug statements in the cfg_read and cfg_write functions
Fix debug statements from the IRQ overhaul last winter
Rename dino_driver_callback() to dino_probe()

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:38:23 -04:00
Grant Grundler
86a61ee9c9 [PARISC] Update ccio-dma from parisc tree
revert use of %%sr0 in fdc asm.

Thanks to Joel Soete for pointing out this oversight.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

2.6.14-rc2-pa3 fdc/lci should be %r0 instead 0 for index (PA 1.1 compliance)
From: Joel Soete <soete.joel@tiscali.be>
Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Explain why we need insert_resource() instead of request_resource().

Fundementally, this is more convoluted for ccio driver because of
o legacy (HP-PB) transperant bridges.
o support for MMIO behind card-mode Dino (PCI)
o support for above bridges without ccio in the box

SBA driver doesn't have to worry about those issues.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Use insert_resource instead of request_resource now that the subdevices
will already have their resources claimed

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

re-enable use of "inline" for perf critical functions.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

2.6.12-rc4-pa5 fix sign extension of MMIO range

Fixes the problem of claiming a range that is disabled on 64-bit kernel:
ccio_init_resource() claimed CCIO bus address space (ffffffff00000000,
ffffffffffffffff)
also removes use of __FILE__.
Tested on both 32 and 64-bit systems by Joel.

From: Joel Soete <soete.joel@tiscali.be>
Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

2.6.12-rc1-pa7 incorrect BUG_ON in ccio

ccio-dma.c line 1317 was preventing K-class with 4GB RAM from booting.
Any ccio machine with >=2GB of RAM would have (incorrectly) triggered this.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Convert to ioremap and __raw_read/write

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:37:43 -04:00
Grant Grundler
64908ad95c [PARISC] Update sba_iommu from parisc tree
revert use of %%sr0 in fdc asm.
Thanks to Joel Soete for pointing out this oversight.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

2.6.14-rc2-pa3 move "sync" outside the main loop that fills IO Pdir.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

remove explicit use of sr0 in fdc ops.
Thanks to Joel Soete for reminding me were I added those...

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

2.6.14-rc2-pa2 - make SBA more anal about invalidating pdir entries

Previous code cleared the valid flag a pdir entry but it did NOT
guarantee this change was visible to the PDIR before writing
the PCOM register. Ie the SBA could pick up a stale entry if
the write happened to hit the SBA before the cacheline was flushed
from the cache.

Long term, I think I want to make this a compile time flag.
Developement tree should enable anal pdir checking by default
and Debian can disable it with either a CONFIG option
or one-line patch. fdc/sync options can only negatively affect
performance though I haven't measure how much yet.
If someone can run netperf TCP_RR across gige and compare
-pa1 and -pa2, that would be sufficient.

Cleaned up the use of "fdc" to make sure it's using "kernel"
space id (specify sr0 but maps to sr4-7). It seems a bit fragile
to assume "sr1" gets loaded with KERNEL_SPACE which is how the
code works today.

Tested on 32 and 64-bit SMP kernels on j6k.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

remove PDC_NARROW from SBA and document history of PDC_NARROW a bit.
It will still show up in an older kernel's .config file.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

if/ifdef cleanups from Joel Soete.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

2.6.12-rc4-pa2  fix 32-bit support for Astro platforms
o Since my last SBA code change, SBA could allocate more than 1GB of IOVA
  space on Astro boxes with more than 1GB of RAM when running 32-bit kernel.
  This is bad since IOMMU can only talk to the first 1GB at most.
  Kudos to jejb for quickly spotting that bug.

o jejb also noted SBA should *always* reject DMA masks > 32-bits since
  DMA-mapping.txt indicates caller should try again with 32-bits.

o off-by-one error when comparing the mask to IOVA space size.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:37:20 -04:00
Matthew Wilcox
53f01bba49 [PARISC] Convert parisc_device to use struct resource for hpa
Convert pa_dev->hpa from an unsigned long to a struct resource.

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Fix up users of ->hpa to use ->hpa.start instead.

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:36:40 -04:00
Matthew Wilcox
bdad1f836a [PARISC] Change the driver names so /sys/bus/parisc/drivers/ looks better
Make /sys/bus/parisc/drivers look better by cleaning up parisc_driver
names.

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:36:23 -04:00
Matthew Wilcox
5658374766 [PARISC] Convert parisc_device tree to use struct device klists
Fix parse_tree_node.  much more needs to be done to fix this file.

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Make drivers.c compile based on a patch from Pat Mochel.

From: Patrick Mochel <mochel@digitalimplant.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

Fix drivers.c to create new device tree nodes when no match is found.

Signed-off-by: Richard Hirst <rhirst@parisc-linux.org>

Do a proper depth-first search returning parents before children, using the
new klist infrastructure.

Signed-off-by: Richard Hirst <rhirst@parisc-linux.org>

Fixed parisc_device traversal so that pdc_stable works again
Fixed check_dev so it doesn't dereference a parisc_device until it
has verified the bus type

Signed-off-by: Randolph Chung <tausq@parisc-linux.org>

Convert pa_dev->hpa from an unsigned long to a struct resource.
Use insert_resource() instead of request_mem_region().
Request resources at bus walk time instead of driver probe time.
Don't release the resources as we don't have any hotplug parisc_device
support yet.
Add parisc_pathname() to conveniently get the textual representation
of the hwpath used in sysfs.
Inline the remnants of claim_device() into its caller.

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

I noticed that some of the STI regions weren't showing up in iomem.
Reading the STI spec indicated that all STI devices occupy at least 32MB.
So check for STI HPAs and give them 32MB instead of 4kB.

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:33:38 -04:00
Chris Wright
63172cb3d5 [PATCH] typo fix in last cpufreq powernow patch
Not sure how it slipped by, but here's a trivial typo fix for powernow.

Signed-off-by: Chris Wright <chrisw@osdl.org>
[ It's "nurter" backwards.. Maybe we have a hillbilly The Shining fan? ]
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-21 17:08:30 -07:00
Roland McGrath
25f407f0b6 [PATCH] Call exit_itimers from do_exit, not __exit_signal
When I originally moved exit_itimers into __exit_signal, that was the only
place where we could reliably know it was the last thread in the group
dying, without races.  Since then we've gotten the signal_struct.live
counter, and do_exit can reliably do group-wide cleanup work.

This patch moves the call to do_exit, where it's made without locks.  This
avoids the deadlock issues that the old __exit_signal code's comment talks
about, and the one that Oleg found recently with process CPU timers.

[ This replaces e03d13e985, which is why
  it was just reverted. ]

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-21 15:38:08 -07:00
Linus Torvalds
9465bee863 Revert "Fix cpu timers exit deadlock and races"
Revert commit e03d13e985, to be replaced
by a much nicer fix from Roland.
2005-10-21 15:36:00 -07:00
Dave Jones
0213df7431 [PATCH] cpufreq: fix pending powernow timer stuck condition
AMD recently discovered that on some hardware, there is a race condition
possible when a C-state change request goes onto the bus at the same
time as a P-state change request.

Both requests happen, but the southbridge hardware only acknowledges the
C-state change.  The PowerNow! driver is then stuck in a loop, waiting
for the P-state change acknowledgement.  The driver eventually times
out, but can no longer perform P-state changes.

It turns out the solution is to resend the P-state change, which the
southbridge will acknowledge normally.

Thanks to Johannes Winkelmann for reporting this and testing the fix.

Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-21 14:28:58 -07:00
David Gibson
3078fcc1d1 [PATCH] ppc64: Fix typo bug in iSeries hash code
This fixes a stupid typo bug in the iSeries hash table code.

When we place a hash PTE in the secondary bucket, instead of setting the
SECONDARY flag bit, as we should, we (redundantly) set the VALID flag.

This was introduced with the patch abolishing bitfields from the hash
table code.  Mea culpa, oops.  It hasn't been noticed until now because
in practice we don't hit the secondary bucket terribly often.

Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-21 12:24:41 -07:00
Linus Torvalds
2c86c83bf4 Merge master.kernel.org:/home/rmk/linux-2.6-arm 2005-10-21 12:23:07 -07:00
Linus Torvalds
cffc7b38a2 Merge master.kernel.org:/pub/scm/linux/kernel/git/acme/net-2.6 2005-10-21 12:22:33 -07:00
Dave Airlie
e29971f9a4 [PATCH] drm: another mga bug
The wrong state emission routines were being called for G550, and
consistent maps weren't correctly mapped...

Signed-off-by: Dave Airlie <airlied@linux.ie>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-21 12:18:09 -07:00
Benjamin Herrenschmidt
5d96551541 [PATCH] ppc64: Fix pages marked dirty abusively
While working on 64K pages, I found this little buglet in our
update_mmu_cache() implementation.

The code calls __hash_page() passing it an "access" parameter (the type
of access that triggers the hash) containing the bits _PAGE_RW and
_PAGE_USER of the linux PTE.  The latter is useless in this case and the
former is wrong.  In fact, if we have a writeable PTE and we pass
_PAGE_RW to hash_page(), it will set _PAGE_DIRTY (since we track dirty
that way, by hash faulting !dirty) which is not what we want.

In fact, the correct fix is to always pass 0. That means that only
read-only or already dirty read write PTEs will be preloaded. The
(hopefully rare) case of a non dirty read write PTE can't be preloaded
this way, it will have to fault in hash_page on the actual access.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-21 12:17:43 -07:00
Paul Mackerras
a1c7e11193 [PATCH] ppc64: Fix typo in time calculations
This fixes a typo in the div128_by_32 function used in the timekeeping
calculations on ppc64.  If you look at the code it's quite obvious
that we need (rb + c) rather than (rb + b).  The "b" is clearly just a
typo.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-21 12:17:43 -07:00
Eric Moore
024358eeaf [PATCH] mptsas: fix phy identifiers
This fixes handling of the phy identifiers in mptsas.

Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
[ split it a pre-2.6.14 portion from Eric's bigger patch ]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-21 12:17:43 -07:00
Russell King
d185663760 [ARM] Fix Integrator IM/PD-1 support
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-21 10:17:37 +01:00
Ben Dooks
7fe8785e41 [ARM] 3028/1: S3C2410 - add DCLK mask definitions
Patch from Ben Dooks

From: Guillaume Gourat <guillaume.gourat@nexvision.fr>

Add MASK definitions for DCLK0 and DCLK1

Signed-off-by: Guillaume Gourat <guillaume.gourat@nexvision.fr>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-20 23:21:20 +01:00
Ben Dooks
b048dbf4d4 [ARM] 3027/1: BAST - reduce NAND timings slightly
Patch from Ben Dooks

The current Simtec BAST nand area timings are a little
too slow to be obtained by a 2410 running at 266MHz,
so reduce the timings slightly to bring them into the
acceptable range.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-20 23:21:19 +01:00
Ben Dooks
a7ce8edc82 [ARM] 3026/1: S3C2410 - avoid possible overflow in pll calculations
Patch from Ben Dooks

Avoid the possiblity that if the board is using
a 16.9334 or higher crystal with a high PLL
multiplier, then the pll value could overflow
the capability of an int.

Also fix the value types of the intermediate
variables to unsigned int.

Rewrite of patch from Guillaume Gourat

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-20 23:21:18 +01:00
Matt Reimer
b2640b420a [ARM] 3025/1: Add I2S platform device for PXA
Patch from Matt Reimer

Adds an I2S platform_device for PXA. I2S is used to interface
with sound chips on systems like iPAQ h1910/h2200/hx4700 and
Asus 716.

Signed-off-by: mreimer@vpop.net
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-20 23:21:18 +01:00
Herbert Xu
b2cc99f04c [TCP] Allow len == skb->len in tcp_fragment
It is legitimate to call tcp_fragment with len == skb->len since
that is done for FIN packets and the FIN flag counts as one byte.
So we should only check for the len > skb->len case.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-10-20 17:13:13 -02:00
Herbert Xu
49c5bfaffe [DCCP]: Clear the IPCB area
Turns out the problem has nothing to do with use-after-free or double-free.
It's just that we're not clearing the CB area and DCCP unlike TCP uses a CB
format that's incompatible with IP.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Ian McDonald <imcdnzl@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-10-20 14:49:59 -02:00
Herbert Xu
ffa29347df [DCCP]: Make dccp_write_xmit always free the packet
icmp_send doesn't use skb->sk at all so even if skb->sk has already
been freed it can't cause crash there (it would've crashed somewhere
else first, e.g., ip_queue_xmit).

I found a double-free on an skb that could explain this though.
dccp_sendmsg and dccp_write_xmit are a little confused as to what
should free the packet when something goes wrong.  Sometimes they
both go for the ball and end up in each other's way.

This patch makes dccp_write_xmit always free the packet no matter
what.  This makes sense since dccp_transmit_skb which in turn comes
from the fact that ip_queue_xmit always frees the packet.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-10-20 14:44:29 -02:00
Herbert Xu
fda0fd6c5b [DCCP]: Use skb_set_owner_w in dccp_transmit_skb when skb->sk is NULL
David S. Miller <davem@davemloft.net> wrote:
> One thing you can probably do for this bug is to mark data packets
> explicitly somehow, perhaps in the SKB control block DCCP already
> uses for other data.  Put some boolean in there, set it true for
> data packets.  Then change the test in dccp_transmit_skb() as
> appropriate to test the boolean flag instead of "skb_cloned(skb)".

I agree.  In fact we already have that flag, it's called skb->sk.
So here is patch to test that instead of skb_cloned().

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Ian McDonald <imcdnzl@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-10-20 14:25:28 -02:00
Hugh Dickins
ac9b9c667c [PATCH] Fix handling spurious page fault for hugetlb region
This reverts commit 3359b54c8c and
replaces it with a cleaner version that is purely based on page table
operations, so that the synchronization between inode size and hugetlb
mappings becomes moot.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-20 09:02:07 -07:00
Linus Torvalds
93918e9afc Linux v2.6.14-rc5
The -rc4 release was supposed to be the last -rc, but here goes.  The
RCU fixes and the swiotlb changes need an -rc for final testing.
2005-10-19 23:23:05 -07:00
Al Viro
450da6ca97 [PATCH] build fix for uml/amd64
Missing half of the [PATCH] uml: Fix sysrq-r support for skas mode
We need to remove these (UPT_[DEFG]S) from the read side as well as the
write one - otherwise it simply won't build.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Acked-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-19 23:18:16 -07:00
Steven Rostedt
461a0ffbec [PATCH] scsi_error thread exits in TASK_INTERRUPTIBLE state.
Found in the -rt patch set.  The scsi_error thread likely will be in the
TASK_INTERRUPTIBLE state upon exit.  This patch fixes this bug.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-19 23:16:21 -07:00
Paul Mackerras
bf3f81b3f7 [PATCH] ppc64: update defconfigs
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-19 23:12:36 -07:00
Linus Torvalds
26baeba8dd Merge master.kernel.org:/home/rmk/linux-2.6-arm 2005-10-19 23:12:03 -07:00
Yasunori Goto
281dd25cdc [PATCH] swiotlb: make sure initial DMA allocations really are in DMA memory
This introduces a limit parameter to the core bootmem allocator; The new
parameter indicates that physical memory allocated by the bootmem
allocator should be within the requested limit.

We also introduce alloc_bootmem_low_pages_limit, alloc_bootmem_node_limit,
alloc_bootmem_low_pages_node_limit apis, but alloc_bootmem_low_pages_limit
is the only api used for swiotlb.

The existing alloc_bootmem_low_pages() api could instead have been
changed and made to pass right limit to the core allocator.  But that
would make the patch more intrusive for 2.6.14, as other arches use
alloc_bootmem_low_pages().  We may be done that post 2.6.14 as a
cleanup.

With this, swiotlb gets memory within 4G for both x86_64 and ia64
arches.

Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: Ravikiran G Thirumalai <kiran@scalex86.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-19 23:11:33 -07:00
Peter Chubb
51b190b304 [PATCH] `unaligned access' in acpi get_root_bridge_busnr()
In drivers/acpi/glue.c the address of an integer is cast to the address of
an unsigned long.  This breaks on systems where a long is larger than an
int --- for a start the int can be misaligned; for a second the assignment
through the pointer will overwrite part of the next variable.

Signed-off-by: Peter Chubb <peterc@gelato.unsw.edu.au>
Acked-by: "Brown, Len" <len.brown@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-19 23:04:31 -07:00
Dave Airlie
11909d6438 [PATCH] fix MGA DRM regression before 2.6.14
I've gotten a report on lkml, of a possible regression in the MGA DRM in
2.6.14-rc4 (since -rc1), I haven't been able to reproduce it here, but I've
figured out some possible issues in the mga code that were definitely
wrong, some of these are from DRM CVS, the main fix is the agp enable bit
on the old code path still used by everyone.....

Signed-off-by: Dave Airlie <airlied@linux.ie>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-19 23:04:31 -07:00
Alan Stern
d1209d049b [PATCH] Threads shouldn't inherit PF_NOFREEZE
The PF_NOFREEZE process flag should not be inherited when a thread is
forked.  This patch (as585) removes the flag from the child.

This problem is starting to show up more and more as drivers turn to the
kthread API instead of using kernel_thread().  As a result, their kernel
threads are now children of the kthread worker instead of modprobe, and
they inherit the PF_NOFREEZE flag.  This can cause problems during system
suspend; the kernel threads are not getting frozen as they ought to be.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-19 23:04:31 -07:00
Tom Rini
f9b25fabfd [PATCH] Export RCS_TAR_IGNORE for rpm targets
The variable RCS_TAR_IGNORE is used in scripts/packaging/Makefile, but not
exported from the main Makefile, so it's never used.

This results in the rpm targets being very unhappy in quilted trees.

Signed-off-by: Tom Rini <trini@kernel.crashing.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-19 23:04:30 -07:00
Benjamin Herrenschmidt
83bcbf8dad [PATCH] ppc64: Fix error in vDSO 32 bits date
The implementation of __kernel_gettimeofday() in the 32 bits vDSO has a
small bug (a typo actually) that will cause it to lose 1 bit of precision.
Not terribly bad but worth fixing.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-19 23:04:30 -07:00