Vlad Yasevich [Tue, 17 Jan 2006 19:53:06 +0000 (11:53 -0800)]
[SCTP]: sctp doesn't show all associations/endpoints in /proc
When creating a very large number of associations (and endpoints),
/proc/assocs and /proc/eps will not show all of them. As a result
netstat will not show all of the either. This is particularly evident
when creating 1000+ associations (or endpoints). As an example with
1500 tcp style associations over loopback, netstat showed 1420 on my
system instead of 3000.
The reason for this is that the seq_operations start method is invoked
multiple times bacause of the amount of data that is provided. The
start method always increments the position parameter and since we use
the position as the hash bucket id, we end up skipping hash buckets.
This patch corrects this situation and get's rid of the silly hash-1
decrement.
Vlad Yasevich [Tue, 17 Jan 2006 19:52:12 +0000 (11:52 -0800)]
[SCTP]: Fix sctp_cookie alignment in the packet.
On 64 bit architectures, sctp_cookie sent as part of INIT-ACK is not
aligned on a 64 bit boundry and thus causes unaligned access exceptions.
The layout of the cookie prameter is this:
|<----- Parameter Header --------------------|<--- Cookie DATA --------
-----------------------------------------------------------------------
| param type (16 bits) | param len (16 bits) | sig [32 bytes] | cookie..
-----------------------------------------------------------------------
The cookie data portion contains 64 bit values on 64 bit architechtures
(timeval) that fall on a 32 bit alignment boundry when used as part of
the on-wire format, but align correctly when used in internal
structures. This patch explicitely pads the on-wire format so that
it is properly aligned.
[SCTP]: Fix potential race condition between sctp_close() and sctp_rcv().
Do not release the reference to association/endpoint if an incoming skb is
added to backlog. Instead release it after the chunk is processed in
sctp_backlog_rcv().
Patch fixes a build problem with CONFIG_X86_VSMP. The vSMP bits probably
gathered some fuzz on its way to mainline, and safe_halt() which was outside
the #endif (CONFIG_X86_VSMP) somehow got inside the !CONFIG_X86_VSMP condition,
hence being undefined and breaking CONFIG_X86_VSMP builds. Patch takes
safe_halt() and halt() macros out of the #endif
Matt Tolentino [Tue, 17 Jan 2006 06:03:44 +0000 (07:03 +0100)]
[PATCH] x86_64: add __meminit for memory hotplug
Add __meminit to the __init lineup to ensure functions default
to __init when memory hotplug is not enabled. Replace __devinit
with __meminit on functions that were changed when the memory
hotplug code was introduced.
Matt Tolentino [Tue, 17 Jan 2006 06:03:41 +0000 (07:03 +0100)]
[PATCH] x86_64: add x86-64 support for memory hot-add
Add x86-64 specific memory hot-add functions, Kconfig options,
and runtime kernel page table update functions to make
hot-add usable on x86-64 machines. Also, fixup the nefarious
conditional locking and exports pointed out by Andi.
Tested on Intel and IBM x86-64 memory hot-add capable systems.
Andi Kleen [Tue, 17 Jan 2006 06:03:38 +0000 (07:03 +0100)]
[PATCH] x86_64: Flexmap for 32bit and randomized mappings for 64bit
Another try at this.
For 32bit follow the 32bit implementation from Ingo -
mappings are growing down from the end of stack now
and vary randomly by 1GB.
Randomized mappings for 64bit just vary the normal mmap break
by 1TB. I didn't bother implementing full flex mmap for 64bit
because it shouldn't be needed there.
... as they are no longer needed. Since there were hard-coded numbers in the
file, the patch also adds a mechanism to avoid these (otherwise potential
future changes would again and again require adjusting these numbers).
NeilBrown [Tue, 17 Jan 2006 06:14:57 +0000 (22:14 -0800)]
[PATCH] md: Clear clevel whenever level is set.
The 'level' of an md array can be set as either a number of a string. When
one is set, the other must be marked 'undefined'. This wasn't being done
in one place: where new arrays are created.
Result: if md1 is a raid1, it is stopped and a raid5 is created there, it
might still appear to be a raid1.
Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Miklos Szeredi [Tue, 17 Jan 2006 06:14:52 +0000 (22:14 -0800)]
[PATCH] fuse: fix bitfield race
Fix race in setting bitfields of fuse_conn. Spotted by Andrew Morton.
The two fields ->connected and ->mounted were always changed with the
fuse_lock held. But other bitfields in the same structure were changed
without the lock. In theory this could lead to losing the assignment of
even the ones under lock. The chosen solution is to change these two
fields to be a full unsigned type. The other bitfields aren't "important"
enough to warrant the extra complexity of full locking or changing them to
bitops.
For all bitfields document why they are safe wrt. concurrent
assignments.
Also make the initialization of the 'num_waiting' atomic counter explicit.
Miklos Szeredi [Tue, 17 Jan 2006 06:14:46 +0000 (22:14 -0800)]
[PATCH] fuse: use asynchronous READ requests for readpages
This patch changes fuse_readpages() to send READ requests asynchronously.
This makes it possible for userspace filesystems to utilize the kernel
readahead logic instead of having to implement their own (resulting in double
caching).
Miklos Szeredi [Tue, 17 Jan 2006 06:14:41 +0000 (22:14 -0800)]
[PATCH] fuse: add connection aborting
Add ability to abort a filesystem connection.
With the introduction of asynchronous reads, the ability to interrupt any
request is not enough to dissolve deadlocks, since now waiting for the request
completion (page unlocked) is independent of the actual request, so in a
deadlock all threads will be uninterruptible.
The solution is to make it possible to abort all requests, even those
currently undergoing I/O to/from userspace. The natural interface for this is
'mount -f mountpoint', but that only works as long as the filesystem is
attached. So also add an 'abort' attribute to the sysfs view of the
connection.
Miklos Szeredi [Tue, 17 Jan 2006 06:14:38 +0000 (22:14 -0800)]
[PATCH] fuse: add number of waiting requests attribute
This patch adds the 'waiting' attribute which indicates how many filesystem
requests are currently waiting to be completed. A non-zero value without any
filesystem activity indicates a hung or deadlocked filesystem.
Miklos Szeredi [Tue, 17 Jan 2006 06:14:31 +0000 (22:14 -0800)]
[PATCH] fuse: introduce list for requests under I/O
Create a new list for requests in the process of being transfered to/from
userspace. This will be needed to be able to abort all requests even those
currently under I/O
Miklos Szeredi [Tue, 17 Jan 2006 06:14:26 +0000 (22:14 -0800)]
[PATCH] fuse: fix request_end()
This function used the request object after decrementing its reference count
and releasing the lock. This could in theory lead to all sorts of problems.
Miklos Szeredi [Tue, 17 Jan 2006 06:14:25 +0000 (22:14 -0800)]
[PATCH] fuse: fuse_copy_finish() order fix
fuse_copy_finish() must be called before request_end(), since the later might
sleep, and no sleeping is allowed between fuse_copy_one() and
fuse_copy_finish() because of kmap_atomic()/kunmap_atomic() used in them.
Bob Copeland [Tue, 17 Jan 2006 06:14:20 +0000 (22:14 -0800)]
[PATCH] partitions: Read Rio Karma partition table
The Rio Karma portable MP3 player has its own proprietary partition table.
The partition layout is similar to a DOS boot sector but it begins at a
different offset and uses a different magic number (0xAB56 instead of
0xAA55). Add support for it to enable mounting the device.
Signed-off-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Paul Mundt [Tue, 17 Jan 2006 06:14:17 +0000 (22:14 -0800)]
[PATCH] sh: Simplistic clock framework
This adds a relatively simplistic clock framework for sh. The initial goal
behind this is to clean up the arch/sh/kernel/time.c mess and to get the CPU
subtype-specific frequency setting and calculation code moved somewhere more
sensible.
This only deals with the core clocks at the moment, though it's trivial for
other drivers to define their own clocks as desired.
Signed-off-by: Paul Mundt <lethal@linux-sh.org> Cc: john stultz <johnstul@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Paul Mundt [Tue, 17 Jan 2006 06:14:15 +0000 (22:14 -0800)]
[PATCH] sh: I/O routine cleanups and ioremap() overhaul
This introduces a few changes in the way that the I/O routines are defined on
SH, specifically so that things like the iomap API properly wrap through the
machvec for board-specific quirks.
In addition to this, the old p3_ioremap() work is converted to a more generic
__ioremap() that will map through the PMB if it's available, or fall back on
page tables for everything else.
An alpha-like IO_CONCAT is also added so we can start to clean up the
board-specific io.h mess, which will be handled in board update patches..
Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Paul Mundt [Tue, 17 Jan 2006 06:14:14 +0000 (22:14 -0800)]
[PATCH] sh: IRQ handler updates
This moves the various IRQ controller drivers into a new subdirectory, and
also extends the INTC2 IRQ handler to also deal with SH7760 and SH7780
interrupts, rather than just ST-40.
The old CONFIG_SH_GENERIC has also been removed from the IRQ definitions, as
new ports are expected to be based off of CONFIG_SH_UNKNOWN. Since there are
plenty of incompatible machvecs, CONFIG_SH_GENERIC doesn't make sense anymore.
Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Paul Mundt [Tue, 17 Jan 2006 06:14:09 +0000 (22:14 -0800)]
[PATCH] sh: DMA updates
This extends the current SH DMA API somewhat to support a proper virtual
channel abstraction, and also works to represent this through the driver model
by giving each DMAC its own platform device.
There's also a few other minor changes to support a few new CPU subtypes, and
make TEI generation for the SH DMAC configurable.
Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Paul Mundt [Tue, 17 Jan 2006 06:14:08 +0000 (22:14 -0800)]
[PATCH] sh: consolidate hp620/hp680/hp690 targets into hp6xx
Most of the reasons for keeping these separate before was due to hp690
discontig, and since we have a workaround for that now (abusing some shadow
space so everything is magically contiguous), there's no reason to keep the
targets separate.
Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
[PATCH] fix up sbuslib for new fb_comapt_ioctl prototype
After ages my fb ioctl prototype cleanup finally got in. Unfortunately the
patch are so old that the sbus compat_ioctl helper didn't exist back then,
so it's not covered. This patch should fix that issue.
Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Ingo Molnar [Tue, 17 Jan 2006 06:14:00 +0000 (22:14 -0800)]
[PATCH] drivers/char/esp.c spinlock fix
There's incorrect spinlock usage in espserial_init(): autoconfig() uses
info->lock before it's initialized. The fix is to initialize the spinlock
earlier.
Adrian Bunk [Tue, 17 Jan 2006 06:13:59 +0000 (22:13 -0800)]
[PATCH] build kernel/intermodule.c only when required
Build kernel/intermodule.c only when required.
Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Xu, Anthony [Mon, 9 Jan 2006 02:36:35 +0000 (10:36 +0800)]
[IA64] pal cache flush patch
Because PAL spec has changed since 2002, you can goto
http://developer.intel.com/design/itanium/manuals/iiasdmanual.htm to
download new SDM, all PAL calls should be invoked with psr.ic=1, and
it's caller's responsibility to handle possible tlb miss.
Ia64_pal_cache_flush was written according to old spec, it is obsolete,
and this patch has ia64_pal_cache_flush conform to new spec.
Signed-off-by Anthony Xu <anthony.xu@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Kenji Kaneshige [Mon, 16 Jan 2006 04:45:23 +0000 (13:45 +0900)]
[IA64] Stop multiple pci_claim_resource() call for the same resource
This patch fixes the bug that pci_claim_resource() is called multiple
times for the same P2P bridge's resource structures if P2P bridges
require their own PCI I/O resources.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Nathan Scott [Mon, 16 Jan 2006 22:02:07 +0000 (09:02 +1100)]
Make alloc_page_buffers() initialise buffer_heads using init_buffer(),
like other routines here, to ensure buffers are correctly initialised
with respect to b_private/b_end_io. Fixes an odd interaction between
XFS and reiserfs.
Linus Torvalds [Mon, 16 Jan 2006 19:33:09 +0000 (11:33 -0800)]
x86-64: fix initrd freeing
The comparison of the initrd start address against "&_end" is
unnecessary and incorrect. Make it match the x86 code that just
compares the passed-in arguments.
projects / linux-2.6 / log