Commit Graph

748 Commits

Author SHA1 Message Date
Patrick McHardy
abc3bc5804 [NET]: Kill skb->tc_classid
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-29 15:31:18 -07:00
David S. Miller
8728b834b2 [NET]: Kill skb->list
Remove the "list" member of struct sk_buff, as it is entirely
redundant.  All SKB list removal callers know which list the
SKB is on, so storing this in sk_buff does nothing other than
taking up some space.

Two tricky bits were SCTP, which I took care of, and two ATM
drivers which Francois Romieu <romieu@fr.zoreil.com> fixed
up.

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
2005-08-29 15:31:14 -07:00
Harald Welte
6869c4d8e0 [NETFILTER]: reduce netfilter sk_buff enlargement
As discussed at netconf'05, we're trying to save every bit in sk_buff.
The patch below makes sk_buff 8 bytes smaller.  I did some basic
testing on my notebook and it seems to work.

The only real in-tree user of nfcache was IPVS, who only needs a
single bit.  Unfortunately I couldn't find some other free bit in
sk_buff to stuff that bit into, so I introduced a separate field for
them.  Maybe the IPVS guys can resolve that to further save space.

Initially I wanted to shrink pkt_type to three bits (PACKET_HOST and
alike are only 6 values defined), but unfortunately the bluetooth code
overloads pkt_type :(

The conntrack-event-api (out-of-tree) uses nfcache, but Rusty just
came up with a way how to do it without any skb fields, so it's safe
to remove it.

- remove all never-implemented 'nfcache' code
- don't have ipvs code abuse 'nfcache' field. currently get's their own
  compile-conditional skb->ipvs_property field.  IPVS maintainers can
  decide to move this bit elswhere, but nfcache needs to die.
- remove skb->nfcache field to save 4 bytes
- move skb->nfctinfo into three unused bits to save further 4 bytes

Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-29 15:31:04 -07:00
Harald Welte
bf3a46aa9b [NETFILTER]: convert nfmark and conntrack mark to 32bit
As discussed at netconf'05, we convert nfmark and conntrack-mark to be
32bits even on 64bit architectures.

Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-29 15:29:31 -07:00
Jeff Garzik
c1b054d03f Merge /spare/repo/linux-2.6/ 2005-08-29 16:40:27 -04:00
Jeff Garzik
70d374ea99 Merge /spare/repo/linux-2.6/ 2005-08-29 15:59:42 -04:00
Al Viro
9e2d3cd34a [PATCH] mod_devicetable.h fixes
* ieee1394_device_id has kernel_ulong_t field after an odd number of
   __u32 ones.  Since mod_devicetable.h is included both from kernel and
   from host build helper, we may be in trouble if we are building on
   32bit host for 64bit target - userland sees unsigned long long,
   kernel sees unsigned long and while their sizes match, alignments
   might not.  Fixed by forcing alignment.  Fortunately, almost nobody
   else needs that - the rest of such fields is naturally aligned as it
   is.

 * of_device_id has void * in it.  Host userland helpers need
   kernel_ulong_t instead, since their void * might have nothing to do
   with the kernel one.  Fixed in the same way it's done for similar
   problems in pcmcia_device_id (ifdef __KERNEL__).

 * pcmcia_device_id has the same problem as ieee1394_device_id.  Fixed
   the same way.

Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-29 10:42:39 -07:00
Linus Torvalds
9ab7486e44 Merge HEAD from master.kernel.org:/home/rmk/linux-2.6-mmc.git 2005-08-29 10:35:21 -07:00
Linus Torvalds
975f957dc4 Merge HEAD from master.kernel.org:/home/rmk/linux-2.6-serial.git 2005-08-29 10:34:59 -07:00
Linus Torvalds
3d963f5bb1 Merge refs/heads/upstream from master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 2005-08-29 10:04:37 -07:00
Andy Fleming
e13934563d [PATCH] PHY Layer fixup
This patch adds back the code that was taken out, thus re-enabling:

* The PHY Layer to initialize without crashing
* Drivers to actually connect to PHYs
* The entire PHY Control Layer

This patch is used by the gianfar driver, and other drivers which are in
development.

Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-28 20:28:25 -04:00
Jeff Garzik
af36d7f0df [libata] license change, other bits
- changes license of all code from OSL+GPL to plain ole GPL
  - except for NVIDIA, who hasn't yet responded about sata_nv
  - copyright holders were already contacted privately

- adds info in each driver about where hardware/protocol docs may be
  obtained

- where I have made major contributions, updated copyright dates
2005-08-28 20:18:39 -04:00
Jeff Garzik
d18d36b4ed libata: fix a few alan-isms 2005-08-27 04:13:52 -04:00
Alan Cox
b73fc89f6d [PATCH] libata: regularize dma_start/stop arguments
Needed for a few PATA drivers.

Also fix up a wrong comment.
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-26 17:36:26 -04:00
Jeff Garzik
75a95178da Merge upstream into 'upstream' branch of netdev-2.6.git.
Hand fix merge conflict in drivers/net/tokenring/Kconfig.
2005-08-24 01:03:34 -04:00
Jeff Garzik
b2382b363d Merge upstream into ieee80211.
Hand-fix merge conflict in drivers/usb/net/zd1201.c.
2005-08-24 01:02:04 -04:00
Jeff Garzik
1410b0a7ad Merge /spare/repo/linux-2.6/ 2005-08-23 01:07:10 -04:00
Tejun Heo
c138950371 [PATCH] fix atapi_packet_task vs. intr race (take 2)
Interrupts from devices sharing the same IRQ could cause
ata_host_intr to finish commands being processed by atapi_packet_task
if the commands are using ATA_PROT_ATAPI_NODATA or ATA_PROT_ATAPI_DMA
protocol.  This is because libata interrupt handler is unaware that
interrupts are not expected during that period.  This patch adds
ATA_FLAG_NOINTR flag to tell the interrupt handler that we're not
expecting interrupts.

 Note that once proper HSM is implemented for interrupt-driven PIO,
this should be merged into it and this flag will be removed.

 ahci.c is a different kind of beast, so it's left alone.

* The following drivers use ata_qc_issue_prot and ata_interrupt, so
  changes in libata core will do.

  ata_piix sata_sil sata_svw sata_via sata_sis sata_uli

* The following drivers use ata_qc_issue_prot and custom intr handler.
  They need this change to work correctly.

  sata_nv sata_vsc

* The following drivers use custom issue function and intr handler.
  Currently all custom issue functions don't support ATAPI, so this
  change is irrelevant, updated for consistency and to avoid later
  mistakes.

  sata_promise sata_qstor sata_sx4

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-23 01:05:55 -04:00
Linus Torvalds
cc314eef01 Fix nasty ncpfs symlink handling bug.
This bug could cause oopses and page state corruption, because ncpfs
used the generic page-cache symlink handlign functions.  But those
functions only work if the page cache is guaranteed to be "stable", ie a
page that was installed when the symlink walk was started has to still
be installed in the page cache at the end of the walk.

We could have fixed ncpfs to not use the generic helper routines, but it
is in many ways much cleaner to instead improve on the symlink walking
helper routines so that they don't require that absolute stability.

We do this by allowing "follow_link()" to return a error-pointer as a
cookie, which is fed back to the cleanup "put_link()" routine.  This
also simplifies NFS symlink handling.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-19 18:02:56 -07:00
Russell King
dce7737718 [MMC] Use an IDR for host name indicies
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-19 09:42:52 +01:00
Russell King
1ad434d7cf [MMC] Use class device name for mmc host name
There's no point in having the host name duplicated between
the mmc_host structure and the encapsulated class device
structure.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-19 09:42:21 +01:00
Russell King
00b137cfda [MMC] Add MMC class devices
Create a mmc_host class to allow enumeration of MMC host controllers
even though they have no card(s) inserted.

Patch based on work by Pierre Ossman.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-19 09:41:24 +01:00
Russell King
d366b64363 [MMC] Add mmc_hostname() macro
mmc_hostname() returns a pointer to the hostname for the mmc_host.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-19 09:40:08 +01:00
Jeff Garzik
a3bc068022 Merge /spare/repo/linux-2.6/ 2005-08-18 22:14:39 -04:00
Linus Torvalds
91aa9fb573 Merge master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6 2005-08-18 15:16:12 -07:00
Narendra Sankar
84f57fbc72 [PATCH] serverworks: add support for new southbridge IDE
BCM5785 (HT1000) is a Opteron Southbridge from Serverworks/Broadcom that
incorporates a single channel ATA100 IDE controller that is functionally
identical to the Serverworks CSB6 IDE controller.  This patch adds support
for the new PCI device ID and also the support for this controller.

Signed-off-by: Narendra Sankar <nsankar@broadcom.com>
Acked-by: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>
2005-08-18 22:30:35 +02:00
Matt Gillette
2f09a7f4af [PATCH] ide: add support for Netcell Revolution to pci-ide generic driver
Adds support for Netcell Revolution to pci-ide generic driver by including
it in the list of devices matched.  Includes the Revolution in the list of
simplex devices forced into DMA mode.

Signed-off-by: Matt Gillette <matt.gillette@netcell.com>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>
2005-08-18 22:27:07 +02:00
Grant Coady
b07e5eccaf [PATCH] ide: fix PCI_DEVIEC_ID_APPLE_UNI_N_ATA spelling
Signed-off-by: Grant Coady <gcoady@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>
2005-08-18 22:19:55 +02:00
Chuck Lever
dc59250c6e [PATCH] NFS: Introduce the use of inode->i_lock to protect fields in nfsi
Down the road we want to eliminate the use of the global kernel lock entirely
from the NFS client.  To do this, we need to protect the fields in the
nfs_inode structure adequately.  Start by serializing updates to the
"cache_validity" field.

Note this change addresses an SMP hang found by njw@osdl.org, where processes
deadlock because nfs_end_data_update and nfs_revalidate_mapping update the
"cache_validity" field without proper serialization.

Test plan:
 Millions of fsx ops on SMP clients.  Run Nick Wilson's breaknfs program on
 large SMP clients.

Signed-off-by: Chuck Lever <cel@netapp.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-18 12:53:57 -07:00
Chuck Lever
412d582ec1 [PATCH] NFS: use atomic bitops to manipulate flags in nfsi->flags
Introduce atomic bitops to manipulate the bits in the nfs_inode structure's
"flags" field.

Using bitops means we can use a generic wait_on_bit call instead of an ad hoc
locking scheme in fs/nfs/inode.c, so we can remove the "nfs_i_wait" field from
nfs_inode at the same time.

The other new flags field will continue to use bitmask and logic AND and OR.
This permits several flags to be set at the same time efficiently.  The
following patch adds a spin lock to protect these flags, and this spin lock
will later cover other fields in the nfs_inode structure, amortizing the cost
of using this type of serialization.

Test plan:
 Millions of fsx ops on SMP clients.

Signed-off-by: Chuck Lever <cel@netapp.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-18 12:53:56 -07:00
Chuck Lever
5529680981 [PATCH] NFS: split nfsi->flags into two fields
Certain bits in nfsi->flags can be manipulated with atomic bitops, and some
are better manipulated via logical bitmask operations.

This patch splits the flags field into two.  The next patch introduces atomic
bitops for one of the fields.

Test plan:
 Millions of fsx ops on SMP clients.

Signed-off-by: Chuck Lever <cel@netapp.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-18 12:53:56 -07:00
Kristen Accardi
4602b88d97 [PATCH] PCI: 6700/6702PXH quirk
On the 6700/6702 PXH part, a MSI may get corrupted if an ACPI hotplug
driver and SHPC driver in MSI mode are used together.

This patch will prevent MSI from being enabled for the SHPC as part of
an early pci quirk, as well as on any pci device which sets the no_msi
bit.

Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-16 21:06:24 -07:00
Trond Myklebust
65e4308d25 [PATCH] NFS: Ensure we always update inode->i_mode when doing O_EXCL creates
When the client performs an exclusive create and opens the file for writing,
a Netapp filer will first create the file using the mode 01777. It does this
since an NFSv3/v4 exclusive create cannot immediately set the mode bits.
The 01777 mode then gets put into the inode->i_mode. After the file creation
is successful, we then do a setattr to change the mode to the correct value
(as per the NFS spec).

The problem is that nfs_refresh_inode() no longer updates inode->i_mode, so
the latter retains the 01777 mode. A bit later, the VFS notices this, and calls
remove_suid(). This of course now resets the file mode to inode->i_mode & 0777.
Hey presto, the file mode on the server is now magically changed to 0777. Duh...

Fixes http://bugzilla.linux-nfs.org/show_bug.cgi?id=32

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-16 09:30:58 -07:00
Trond Myklebust
58fcb8df0b [PATCH] NFS: Ensure ACL xdr code doesn't overflow.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-16 08:52:11 -07:00
John McCutchan
89204c40a0 [PATCH] inotify: add MOVE_SELF event
This adds a MOVE_SELF event to inotify.  It is sent whenever the inode
you are watching is moved.  We need this event so that we can catch
something like this:

 - app1:
	watch /etc/mtab

 - app2:
	cp /etc/mtab /tmp/mtab-work
	mv /etc/mtab /etc/mtab~
	mv /tmp/mtab-work /etc/mtab

app1 still thinks it's watching /etc/mtab but it's actually watching
/etc/mtab~.

Signed-off-by: John McCutchan <ttb@tentacle.dhs.org>
Signed-off-by: Robert Love <rml@novell.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-15 09:50:31 -07:00
Jeff Garzik
4c0e176dd5 Merge /spare/repo/linux-2.6/ 2005-08-14 23:10:00 -04:00
Matt Mackall
53fb95d3c1 [NETPOLL]: fix initialization/NAPI race
This fixes a race during initialization with the NAPI softirq
processing by using an RCU approach.

This race was discovered when refill_skbs() was added to
the setup code.

Signed-off-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-11 19:27:43 -07:00
Matt Mackall
0db1d6fc1e [NETPOLL]: add retry timeout
Add limited retry logic to netpoll_send_skb

Each time we attempt to send, decrement our per-device retry counter.
On every successful send, we reset the counter. 

We delay 50us between attempts with up to 20000 retries for a total of
1 second. After we've exhausted our retries, subsequent failed
attempts will try only once until reset by success.

Signed-off-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-11 19:25:54 -07:00
Alexey Dobriyan
a0d3bea3cf [NET]: Make skb->protocol __be16
There are many instances of

	skb->protocol = htons(ETH_P_*);
	skb->protocol = __constant_htons(ETH_P_*);
and
	skb->protocol = *_type_trans(...);

Most of *_type_trans() are already endian-annotated, so, let's shift
attention on other warnings.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-11 16:05:50 -07:00
Douglas Gilbert
972dcafb6d [libata scsi] add START STOP UNIT translation 2005-08-11 03:35:53 -04:00
Jeff Garzik
2bf69b5fe9 phy subsystem: more cleanups
- unexport symbols never used outside of home module
- remove dead code
- remove CONFIG_PHYCONTROL, make it unconditionally enabled
2005-08-11 02:47:54 -04:00
Jeff Garzik
67c4f3fa25 Fix numerous minor problems with new phy subsystem.
Includes fixes for problems noted by Adrian Bunk, Andrew Morton,
and one other person lost in the annals of history (and email folders).
2005-08-11 02:07:25 -04:00
Jeff Garzik
cd04b947bc Merge /spare/repo/linux-2.6/ 2005-08-11 00:07:03 -04:00
Jeff Garzik
a7144b23da Merge /spare/repo/linux-2.6/ 2005-08-10 13:43:09 -04:00
Christoph Lameter
86b3786078 [PATCH] Fix ide-disk.c oops caused by hwif == NULL
1. Move hwif_to_node to ide.h

2. Use hwif_to_node in ide-disk.c

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-09 20:21:31 -07:00
John McCutchan
00dd1e4339 [PATCH] fsnotify-cleanups
This removes the now unused fsnotify_unlink & fsnotify_rmdir code.
Compile tested.

Signed-off-by: John McCutchan <ttb@tentacle.dhs.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-08 19:22:42 -07:00
Linus Torvalds
dc836b5b6f Revert "[PATCH] PCI: restore BAR values..."
Revert commit fec59a711e, which is
breaking sparc64 that doesn't have a working pci_update_resource.

We'll re-do this after 2.6.13 when we'll do it all properly.
2005-08-08 18:46:09 -07:00
Linus Torvalds
92e52b2e82 Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2005-08-08 16:06:01 -07:00
David S. Miller
4d479e40e1 [NETLINK]: Allocate and kill some netlink numbers.
NETLINK_ARPD is unused, allocate it to the Open-iSCSI folks.

NETLINK_ROUTE6 and NETLINK_TAPBASE are no longer used, delete
them.

Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-08 13:48:02 -07:00
John McCutchan
7a91bf7f5c [PATCH] fsnotify_name/inoderemove
The patch below unhooks fsnotify from vfs_unlink & vfs_rmdir.  It
introduces two new fsnotify calls, that are hooked in at the dcache
level.  This not only more closely matches how the VFS layer works, it
also avoids the problem with locking and inode lifetimes.

The two functions are

 - fsnotify_nameremove -- called when a directory entry is going away.
   It notifies the PARENT of the deletion.  This is called from
   d_delete().

 - inoderemove -- called when the files inode itself is going away.  It
   notifies the inode that is being deleted.  This is called from
   dentry_iput().

Signed-off-by: John McCutchan <ttb@tentacle.dhs.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-08 11:53:47 -07:00
Olaf Hering
9ae5b3c703 [PATCH] remove linux/pagemap.h from linux/swap.h
sparc can not include linux/pagemap.h because of the following circular
dependency:

asm-sparc/pgtable include linux/swap.h
linux/swap.h include now linux/pagemap.h
linux/pagemap.h include linux/mm.h
linux/mm.h include asm/pgtable.h

It needs to have the swp_entry_t type fully visible in pgtable.h,
we can't work around this using macros.

Signed-off-by: Olaf Hering <olh@suse.de>
Cc: William Lee Irwin III <wli@holomorphy.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-07 10:00:38 -07:00
Linus Torvalds
243393c90f Add fakey 'deflateBound()' function to the in-kernel zlib routines
It's not the real deflateBound() in newer zlib libraries, partly because
the upcoming usage of it won't have the "stream" available, so we can't
have the same interfaces anyway.
2005-08-06 09:39:57 -07:00
Tejun Heo
ba02508248 [PATCH] blk: fix tag shrinking (revive real_max_size)
My patch in commit fa72b903f7 incorrectly
removed blk_queue_tag->real_max_depth.

The original resize implementation was incorrect in the following
points.

 * actual allocation size of tag_index was shorter than real_max_size,
   but assumed to be of the same size, possibly causing memory access
   beyond the allocated area.
 * bits in tag_map between max_deptn and real_max_depth were
   initialized to 1's, making the tags permanently reserved.

In an attempt to fix above two bugs, I had removed allocation optimization
in init_tag_map and real_max_size.  Tag map/index were allocated and freed
immediately during resize.

Unfortunately, I wasn't considering that tag map/index can be resized
dynamically with tags beyond new_depth active.  This led to accessing
freed area after shrinking tags and led to the following bug reporting
thread on linux-scsi.

   http://marc.theaimsgroup.com/?l=linux-scsi&m=112319898111885&w=2

To fix the problem, I've revived real_max_depth without allocation
optimization in init_tag_map, and Andrew Vasquez confirmed that the
problem was fixed.  As Jens is not going to be available for a week, he
asked me to make sure that this patch reaches you.

   http://marc.theaimsgroup.com/?l=linux-scsi&m=112325778530886&w=2

Also, a comment was added to make sure that real_max_size is needed for
dynamic shrinking.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-05 13:43:16 -07:00
John McCutchan
0c3dba1534 [PATCH] Clean up inotify delete race fix
This avoids the whole #ifdef mess by just getting a copy of
dentry->d_inode before d_delete is called - that makes the codepaths the
same for the INOTIFY/DNOTIFY cases as for the regular no-notify case.
I've been running this under a Gnome session for the last 10 minutes.
Inotify is being used extensively.

Signed-off-by: John McCutchan <ttb@tentacle.dhs.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-04 21:37:39 -07:00
John W. Linville
fec59a711e [PATCH] PCI: restore BAR values after D3hot->D0 for devices that need it
Some PCI devices (e.g. 3c905B, 3c556B) lose all configuration
(including BARs) when transitioning from D3hot->D0.  This leaves such
a device in an inaccessible state.  The patch below causes the BARs
to be restored when enabling such a device, so that its driver will
be able to access it.

The patch also adds pci_restore_bars as a new global symbol, and adds a
correpsonding EXPORT_SYMBOL_GPL for that.

Some firmware (e.g. Thinkpad T21) leaves devices in D3hot after a
(re)boot.  Most drivers call pci_enable_device very early, so devices
left in D3hot that lose configuration during the D3hot->D0 transition
will be inaccessible to their drivers.

Drivers could be modified to account for this, but it would
be difficult to know which drivers need modification.  This is
especially true since often many devices are covered by the same
driver.  It likely would be necessary to replicate code across dozens
of drivers.

The patch below should trigger only when transitioning from D3hot->D0
(or at boot), and only for devices that have the "no soft reset" bit
cleared in the PM control register.  I believe it is safe to include
this patch as part of the PCI infrastructure.

The cleanest implementation of pci_restore_bars was to call
pci_update_resource.  Unfortunately, that does not currently exist
for the sparc64 architecture.  The patch below includes a null
implemenation of pci_update_resource for sparc64.

Some have expressed interest in making general use of the the
pci_restore_bars function, so that has been exported to GPL licensed
modules.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-04 21:32:46 -07:00
NeilBrown
6b8b3e8a8b [PATCH] md: make sure md bitmap updates are flushed when array is stopped.
The recent change to never ignore the bitmap, revealed that the bitmap isn't
begin flushed properly when an array is stopped.

We call bitmap_daemon_work three times as there is a three-stage pipeline for
flushing updates to the bitmap file.

Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-04 13:00:54 -07:00
Nick Piggin
f33ea7f404 [PATCH] fix get_user_pages bug
Checking pte_dirty instead of pte_write in __follow_page is problematic
for s390, and for copy_one_pte which leaves dirty when clearing write.

So revert __follow_page to check pte_write as before, and make
do_wp_page pass back a special extra VM_FAULT_WRITE bit to say it has
done its full job: once get_user_pages receives this value, it no longer
requires pte_write in __follow_page.

But most callers of handle_mm_fault, in the various architectures, have
switch statements which do not expect this new case.  To avoid changing
them all in a hurry, make an inline wrapper function (using the old
name) that masks off the new bit, and use the extended interface with
double underscores.

Yes, we do have a call to do_wp_page from do_swap_page, but no need to
change that: in rare case it's needed, another do_wp_page will follow.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
[ Cleanups by Nick Piggin ]
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-03 09:12:05 -07:00
Adrian Bunk
0072b1389c [PATCH] include/linux/dcookies.h: dummy functions must be "static inline"
We don't want these to be global functions.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-01 21:37:59 -07:00
John McCutchan
7544953685 [PATCH] inotify: fix file deletion by rename detection
When a file is moved over an existing file that you are watching,
inotify won't send you a DELETE_SELF event and it won't unref the inode
until the inotify instance is closed by the application.

Signed-off-by: John McCutchan <ttb@tentacle.dhs.org>
Signed-off-by: Robert Love <rml@novell.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-01 09:16:53 -07:00
Jeff Garzik
8a60a07129 libata: trim trailing whitespace.
Also, fixup a tabs-to-spaces block of code in ata_piix.
2005-07-31 13:13:24 -04:00
Daniel Drake
541134cfe7 [PATCH] sata_nv: Support MCP51/MCP55 device IDs
This is a multi-part message in MIME format.
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-07-31 01:04:43 -04:00
Andy Fleming
00db8189d9 This patch adds a PHY Abstraction Layer to the Linux Kernel, enabling
ethernet drivers to remain as ignorant as is reasonable of the connected
PHY's design and operation details.

Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-07-30 19:31:23 -04:00
Jeff Garzik
a670fcb43f /spare/repo/netdev-2.6 branch 'master' 2005-07-30 18:14:15 -04:00
Len Brown
adbedd3424 merge 2.6.13-rc4 with ACPI's to-linus tree 2005-07-30 01:55:32 -04:00
Len Brown
d6ac1a7910 /home/lenb/src/to-linus branch 'acpi-2.6.12' 2005-07-29 23:31:17 -04:00
David Shaohua Li
87bec66b96 [ACPI] suspend/resume ACPI PCI Interrupt Links
Add reference count and disable ACPI PCI Interrupt Link
when no device still uses it.

Warn when drivers have not released Link at suspend time.

http://bugzilla.kernel.org/show_bug.cgi?id=3469

Signed-off-by: David Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-07-29 22:49:38 -04:00
Kumar Gala
a46e812620 [PATCH] PCI: fix up errors after dma bursting patch and CONFIG_PCI=n -- bug?
In the patch from:

http://www.uwsg.iu.edu/hypermail/linux/kernel/0506.3/0985.html

Is the the following line suppose inside the if CONFIG_PCI=n

  #define pci_dma_burst_advice(pdev, strat, strategy_parameter) do { } while (0)

Signed-off-by: Kumar Gala <kumar.gala@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-29 13:12:52 -07:00
Linus Torvalds
e0d7ff168a Merge master.kernel.org:/pub/scm/linux/kernel/git/dtor/input 2005-07-29 09:48:34 -07:00
Linus Torvalds
2ac6608c41 Revert broken "statement with no effect" warning fix
It may shut up gcc, but it also incorrectly changes the semantics of the
smp_call_function() helpers.

You can fix the warning other ways if you are interested (create another
inline function that takes no arguments and returns zero), but
preferably gcc just shouldn't complain about unused return values from
statement expressions in the first place.
2005-07-28 10:34:47 -07:00
Richard Henderson
79a8810221 [PATCH] alpha: fix "statement with no effect" warnings
Apparently gcc 4.0 complains about "({ 0; });", which leads to -Werror
breakage in one of the alpha oprofile modules.

One might could argue that this is a gcc bug, in that statement-expressions
should be considered to be function-like rather than statement-like for the
purposes of this warning.  But it's just as easy to use an inline function
in the first place, side-stepping the issue.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-28 08:39:02 -07:00
Russell King
661299d9d0 Merge with Linus' 2.6 tree 2005-07-28 09:30:20 +01:00
Ralf Baechle
e5c2d74917 [PATCH] serial_core whitespace fix
Use tabs for formatting like anywhere else in this file.

Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27 16:26:09 -07:00
Olaf Hering
44456d37b5 [PATCH] turn many #if $undefined_string into #ifdef $undefined_string
turn many #if $undefined_string into #ifdef $undefined_string to fix some
warnings after -Wno-def was added to global CFLAGS

Signed-off-by: Olaf Hering <olh@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27 16:26:08 -07:00
Andreas Gruenbacher
8c52ab42c1 [PATCH] mbcache: Remove unused mb_cache_shrink parameter
The cache parameter to mb_cache_shrink isn't used.  We may as well remove
it.

Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27 16:26:07 -07:00
Peter Staubach
c293621bbf [PATCH] stale POSIX lock handling
I believe that there is a problem with the handling of POSIX locks, which
the attached patch should address.

The problem appears to be a race between fcntl(2) and close(2).  A
multithreaded application could close a file descriptor at the same time as
it is trying to acquire a lock using the same file descriptor.  I would
suggest that that multithreaded application is not providing the proper
synchronization for itself, but the OS should still behave correctly.

SUS3 (Single UNIX Specification Version 3, read: POSIX) indicates that when
a file descriptor is closed, that all POSIX locks on the file, owned by the
process which closed the file descriptor, should be released.

The trick here is when those locks are released.  The current code releases
all locks which exist when close is processing, but any locks in progress
are handled when the last reference to the open file is released.

There are three cases to consider.

One is the simple case, a multithreaded (mt) process has a file open and
races to close it and acquire a lock on it.  In this case, the close will
release one reference to the open file and when the fcntl is done, it will
release the other reference.  For this situation, no locks should exist on
the file when both the close and fcntl operations are done.  The current
system will handle this case because the last reference to the open file is
being released.

The second case is when the mt process has dup(2)'d the file descriptor.
The close will release one reference to the file and the fcntl, when done,
will release another, but there will still be at least one more reference
to the open file.  One could argue that the existence of a lock on the file
after the close has completed is okay, because it was acquired after the
close operation and there is still a way for the application to release the
lock on the file, using an existing file descriptor.

The third case is when the mt process has forked, after opening the file
and either before or after becoming an mt process.  In this case, each
process would hold a reference to the open file.  For each process, this
degenerates to first case above.  However, the lock continues to exist
until both processes have released their references to the open file.  This
lock could block other lock requests.

The changes to release the lock when the last reference to the open file
aren't quite right because they would allow the lock to exist as long as
there was a reference to the open file.  This is too long.

The new proposed solution is to add support in the fcntl code path to
detect a race with close and then to release the lock which was just
acquired when such as race is detected.  This causes locks to be released
in a timely fashion and for the system to conform to the POSIX semantic
specification.

This was tested by instrumenting a kernel to detect the handling locks and
then running a program which generates case #3 above.  A dangling lock
could be reliably generated.  When the changes to detect the close/fcntl
race were added, a dangling lock could no longer be generated.

Cc: Matthew Wilcox <willy@debian.org>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27 16:26:06 -07:00
Martin Schwidefsky
951f22d5b1 [PATCH] s390: spin lock retry
Split spin lock and r/w lock implementation into a single try which is done
inline and an out of line function that repeatedly tries to get the lock
before doing the cpu_relax().  Add a system control to set the number of
retries before a cpu is yielded.

The reason for the spin lock retry is that the diagnose 0x44 that is used to
give up the virtual cpu is quite expensive.  For spin locks that are held only
for a short period of time the costs of the diagnoses outweights the savings
for spin locks that are held for a longer timer.  The default retry count is
1000.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27 16:26:04 -07:00
Andrey Panin
4bfdf37830 [PATCH] consolidate CONFIG_WATCHDOG_NOWAYOUT handling
Attached patch removes #ifdef CONFIG_WATCHDOG_NOWAYOUT mess duplicated in
almost every watchdog driver and replaces it with common define in
linux/watchdog.h.

Signed-off-by: Andrey Panin <pazke@donpac.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27 16:25:54 -07:00
Olivier Blin
49f2991585 [PATCH] i4l: add Olitec ISDN PCI card in hisax gazel driver
This patch adds support for the Olitec ISDN PCI card in the hisax gazel
driver.  The gazel driver supports this card, but wasn't aware of its PCI
ids.  Users used to modify the PCI ids of a supported card in
include/linux/pci_ids.h and recompile their kernel to get this card
running, as said in most Howtos.  This patch makes the hisax gazel driver
recognize the PCI ids of the Olitec ISDN PCI card.

Signed-off-by: Olivier Blin <oblin@mandriva.com>
Signed-off-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27 16:25:51 -07:00
Alexey Dobriyan
c10b873695 [PATCH] Really __nocast-annotate kmalloc_node()
One chunk was lost somewhere between my and Andrew's machine.

Noticed by Victor Fusco.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27 16:25:47 -07:00
Russell King
05caac585f [SERIAL] Convert parport_serial to use new 8250_pci interfaces
Convert parport_serial to use the new 8250_pci interface, converting
the table to a pciserial_board table.  This also unuses the SPCI_*
definitions in serialP.h, which can now be removed.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-07-27 11:41:18 +01:00
Russell King
241fc4367b [SERIAL] Expose 8250_pci setup/removal/suspend/resume functions
Re-jig the setup/removal/suspend/resume of 8250 pci ports so that they
know slightly less about how they're attached to a PCI device.  Expose
this as the new interface for registering PCI serial ports, as well as
the pciserial_board structure and associated flag definitions.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-07-27 11:35:54 +01:00
Linus Torvalds
4d7de66e2c Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2005-07-26 16:43:39 -07:00
Adrian Bunk
cadf01c2fc [NETFILTER]: Fix ip_conntrack_put() prototype.
The function is not inline.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-26 15:39:28 -07:00
Eric W. Biederman
7c9034735e [PATCH] Add emergency_restart()
When the kernel is working well and we want to restart cleanly
kernel_restart is the function to use.   But in many instances
the kernel wants to reboot when thing are expected to be working
very badly such as from panic or a software watchdog handler.

This patch adds the function emergency_restart() so that
callers can be clear what semantics they expect when calling
restart.  emergency_restart() is expected to be callable
from interrupt context and possibly reliable in even more
trying circumstances.

This is an initial generic implementation for all architectures.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-26 14:35:41 -07:00
Eric W. Biederman
4a00ea1e18 [PATCH] Refactor sys_reboot into reusable parts
Because the factors of sys_reboot don't exist people calling
into the reboot path duplicate the code badly, leading to
inconsistent expectations of code in the reboot path.

This patch should is just code motion.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-26 14:35:41 -07:00
Linus Torvalds
2d986010ad Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-for-linus-2.6 2005-07-26 13:28:47 -07:00
Michael Chan
4cf78e4fb6 [TG3]: add 5780 basic support
Add 5780 PCI IDs, chip IDs, and other basic support.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-25 12:29:19 -07:00
David S. Miller
48647feed9 [W1]: Do not use NFLOG netlink number.
Use the reserved by never used NETLINK_SKIP value instead.

Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-24 19:30:28 -07:00
Linus Torvalds
2c2a68b847 Merge master.kernel.org:/home/rmk/linux-2.6-serial 2005-07-23 17:01:26 -07:00
Linus Torvalds
38afd6adf6 Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2005-07-22 16:33:00 -07:00
David S. Miller
261688d01e [PKT_SCHED]: em_meta: Kill TCF_META_ID_{INDEV,SECURITY,TCVERDICT}
More unusable TCF_META_* match types that need to get eliminated
before 2.6.13 goes out the door.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Graf <tgraf@suug.ch>
2005-07-22 14:43:52 -07:00
David S. Miller
28e212fb36 [PKT_SCHED]: Kill TCF_META_ID_REALDEV from meta ematch.
It won't exist any longer when we shrink the SKB in 2.6.14,
and we should kill this off before anyone in userspace starts
using it.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Graf <tgraf@suug.ch>
2005-07-22 11:47:25 -07:00
Rusty Russell
4acdbdbe50 [NETFILTER]: ip_conntrack_expect_related must not free expectation
If a connection tracking helper tells us to expect a connection, and
we're already expecting that connection, we simply free the one they
gave us and return success.

The problem is that NAT helpers (eg. FTP) have to allocate the
expectation first (to see what port is available) then rewrite the
packet.  If that rewrite fails, they try to remove the expectation,
but it was freed in ip_conntrack_expect_related.

This is one example of a larger problem: having registered the
expectation, the pointer is no longer ours to use.  Reference counting
is needed for ctnetlink anyway, so introduce it now.

To have a single "put" path, we need to grab the reference to the
connection on creation, rather than open-coding it in the caller.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-21 13:14:46 -07:00
Victor Fusco
e2bf521d97 [NET]: Fix "nocast type" warnings in skbuff.h
From: Victor Fusco <victor@cetuc.puc-rio.br>

Fix the sparse warning "implicit cast to nocast type"

Signed-off-by: Victor Fusco <victor@cetuc.puc-rio.br>
Signed-off-by: Domen Puncer <domen@coderock.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-18 13:36:38 -07:00
Patrick McHardy
23af27eb8f [PKT_SCHED]: Kill TCF_META_ID_TCCLASSID.
Thomas Graf states:

> I used to mark such ids as obsolete in the header but since
> skb is on diet anyway and there has been no official
> iproute2 release with the ematch bits included it might be
> a better idea to remove the ids from the header completely.
> Those that have picked up my patch on netdev shouldn't care
> about a ABI breakage, actually I doubt that someone is using
> it already.

So here's the patch to remove it.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-18 13:34:35 -07:00
Andrey Panin
fbc0dc0df5 [PATCH] Serial: Add support for SIIG Quartet serial card
Add support for SIIG Quartet Serial card.  This card has Oxford
Semiconducor 16954 quad UART which is clocked by 10x faster
(18.432 MHz) quartz.

Signed-off-by: Andrey Panin <pazke@donpac.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-07-18 11:38:09 +01:00
Olaf Hering
6d283d2716 [PATCH] Serial: Remove linux/version.h
changing CONFIG_LOCALVERSION rebuilds too much, for no appearent reason.

Signed-off-by: Olaf Hering <olh@suse.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-07-16 09:59:00 +01:00
Russell King
661f83a67c [PATCH] Serial: Move deprecation of register_serial forward to September
I think it's about time to make the build a little more vocal about the
expiry of these functions.  Due to recent discussions with problems in
the console initialisation vs power manglement, I'd like to move the
date forward to September.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-07-16 09:30:53 +01:00
NeilBrown
6a806c510d [PATCH] md/raid1: clear bitmap when fullsync completes
We need to be careful differentiating between a resync of a complete array,
in which we can clear the bitmap, and a resync of a degraded array, in
which we cannot.

This patch cleans all that up.

Cc: Paul Clements <paul.clements@steeleye.com>
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-15 09:54:51 -07:00
Andrew Vasquez
ac96202ba0 [SCSI] qla2xxx: Add pci ids for new ISP types.
Add pci ids for new ISP types.

Move old definitions in local qla_def.h file to pci_ids.h as
well.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-07-14 10:54:20 -04:00
Jeff Garzik
327309e899 Merge upstream 2.6.13-rc3 into ieee80211 branch of netdev-2.6. 2005-07-13 16:23:51 -04:00
Martin Schwidefsky
068e1b94bb [PATCH] s390: fadvise hint values.
Add special case for the POSIX_FADV_DONTNEED and POSIX_FADV_NOREUSE hint
values for s390-64.  The user space values in the s390-64 glibc headers for
these two defines have always been 6 and 7 instead of 4 and 5.  All 64 bit
applications therefore use the "wrong" values.  To get these applications
working without recompiling the kernel needs to accept the "wrong" values.
Since the values for s390-31 are 4 and 5 the compat wrapper for fadvise64
and fadvise64_64 need to rewrite the values for 31 bit system calls.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-13 11:25:24 -07:00
Anton Altaparmakov
88bd5121d6 [PATCH] Fix soft lockup due to NTFS: VFS part and explanation
Something has changed in the core kernel such that we now get concurrent
inode write outs, one e.g via pdflush and one via sys_sync or whatever.
This causes a nasty deadlock in ntfs.  The only clean solution
unfortunately requires a minor vfs api extension.

First the deadlock analysis:

Prerequisive knowledge: NTFS has a file $MFT (inode 0) loaded at mount
time.  The NTFS driver uses the page cache for storing the file contents as
usual.  More interestingly this file contains the table of on-disk inodes
as a sequence of MFT_RECORDs.  Thus NTFS driver accesses the on-disk inodes
by accessing the MFT_RECORDs in the page cache pages of the loaded inode
$MFT.

The situation: VFS inode X on a mounted ntfs volume is dirty.  For same
inode X, the ntfs_inode is dirty and thus corresponding on-disk inode,
which is as explained above in a dirty PAGE_CACHE_PAGE belonging to the
table of inodes ($MFT, inode 0).

What happens:

Process 1: sys_sync()/umount()/whatever...  calls __sync_single_inode() for
$MFT -> do_writepages() -> write_page for the dirty page containing the
on-disk inode X, the page is now locked -> ntfs_write_mst_block() which
clears PageUptodate() on the page to prevent anyone else getting hold of it
whilst it does the write out (this is necessary as the on-disk inode needs
"fixups" applied before the write to disk which are removed again after the
write and PageUptodate is then set again).  It then analyses the page
looking for dirty on-disk inodes and when it finds one it calls
ntfs_may_write_mft_record() to see if it is safe to write this on-disk
inode.  This then calls ilookup5() to check if the corresponding VFS inode
is in icache().  This in turn calls ifind() which waits on the inode lock
via wait_on_inode whilst holding the global inode_lock.

Process 2: pdflush results in a call to __sync_single_inode for the same
VFS inode X on the ntfs volume.  This locks the inode (I_LOCK) then calls
write-inode -> ntfs_write_inode -> map_mft_record() -> read_cache_page() of
the page (in page cache of table of inodes $MFT, inode 0) containing the
on-disk inode.  This page has PageUptodate() clear because of Process 1
(see above) so read_cache_page() blocks when tries to take the page lock
for the page so it can call ntfs_read_page().

Thus Process 1 is holding the page lock on the page containing the on-disk
inode X and it is waiting on the inode X to be unlocked in ifind() so it
can write the page out and then unlock the page.

And Process 2 is holding the inode lock on inode X and is waiting for the
page to be unlocked so it can call ntfs_readpage() or discover that
Process 1 set PageUptodate() again and use the page.

Thus we have a deadlock due to ifind() waiting on the inode lock.

The only sensible solution: NTFS does not care whether the VFS inode is
locked or not when it calls ilookup5() (it doesn't use the VFS inode at
all, it just uses it to find the corresponding ntfs_inode which is of
course attached to the VFS inode (both are one single struct); and it uses
the ntfs_inode which is subject to its own locking so I_LOCK is irrelevant)
hence we want a modified ilookup5_nowait() which is the same as ilookup5()
but it does not wait on the inode lock.

Without such functionality I would have to keep my own ntfs_inode cache in
the NTFS driver just so I can find ntfs_inodes independent of their VFS
inodes which would be slow, memory and cpu cycle wasting, and incredibly
stupid given the icache already exists in the VFS.

Below is a patch that does the ilookup5_nowait() implementation in
fs/inode.c and exports it.

ilookup5_nowait.diff:

Introduce ilookup5_nowait() which is basically the same as ilookup5() but
it does not wait on the inode's lock (i.e. it omits the wait_on_inode()
done in ifind()).

This is needed to avoid a nasty deadlock in NTFS.

Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-13 11:25:24 -07:00
Robert Love
5995f16b4a [PATCH] inotify: event ordering
This rearranges the event ordering for "open" to be consistent with the
ordering of the other events.

Signed-off-by: Robert Love <rml@novell.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-13 11:09:31 -07:00
Robert Love
0399cb08c5 [PATCH] inotify: move sysctl
This moves the inotify sysctl knobs to "/proc/sys/fs/inotify" from
"/proc/sys/fs".  Also some related cleanup.

Signed-off-by: Robert Love <rml@novell.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-13 11:09:31 -07:00
Robert Love
0eeca28300 [PATCH] inotify
inotify is intended to correct the deficiencies of dnotify, particularly
its inability to scale and its terrible user interface:

        * dnotify requires the opening of one fd per each directory
          that you intend to watch. This quickly results in too many
          open files and pins removable media, preventing unmount.
        * dnotify is directory-based. You only learn about changes to
          directories. Sure, a change to a file in a directory affects
          the directory, but you are then forced to keep a cache of
          stat structures.
        * dnotify's interface to user-space is awful.  Signals?

inotify provides a more usable, simple, powerful solution to file change
notification:

        * inotify's interface is a system call that returns a fd, not SIGIO.
	  You get a single fd, which is select()-able.
        * inotify has an event that says "the filesystem that the item
          you were watching is on was unmounted."
        * inotify can watch directories or files.

Inotify is currently used by Beagle (a desktop search infrastructure),
Gamin (a FAM replacement), and other projects.

See Documentation/filesystems/inotify.txt.

Signed-off-by: Robert Love <rml@novell.com>
Cc: John McCutchan <ttb@tentacle.dhs.org>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-12 20:38:38 -07:00
Linus Torvalds
bd4c625c06 reiserfs: run scripts/Lindent on reiserfs code
This was a pure indentation change, using:

	scripts/Lindent fs/reiserfs/*.c include/linux/reiserfs_*.h

to make reiserfs match the regular Linux indentation style.  As Jeff
Mahoney <jeffm@suse.com> writes:

 The ReiserFS code is a mix of a number of different coding styles, sometimes
 different even from line-to-line. Since the code has been relatively stable
 for quite some time and there are few outstanding patches to be applied, it
 is time to reformat the code to conform to the Linux style standard outlined
 in Documentation/CodingStyle.

 This patch contains the result of running scripts/Lindent against
 fs/reiserfs/*.c and include/linux/reiserfs_*.h. There are places where the
 code can be made to look better, but I'd rather keep those patches separate
 so that there isn't a subtle by-hand hand accident in the middle of a huge
 patch. To be clear: This patch is reformatting *only*.

 A number of patches may follow that continue to make the code more consistent
 with the Linux coding style.

 Hans wasn't particularly enthusiastic about these patches, but said he
 wouldn't really oppose them either.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-12 20:21:28 -07:00
Linus Torvalds
3f603ed319 Merge master.kernel.org:/pub/scm/linux/kernel/git/lenb/linux-2.6 2005-07-12 16:04:50 -07:00
Randy Dunlap
67bc4eb0b1 [PATCH] hardirq uses preempt
hardirq.h uses preempt_count() from preempt.h

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-12 16:01:03 -07:00
Andrew Morton
542d1c88bd [PATCH] tlb.h warning fix
free_pages_and_swap_cache() and free_page_and_swap_cache() use release_pages()
and page_cache_release() respectively, so make sure that we have the
declarations in scope.

Cc: Olaf Hering <olh@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-12 16:01:02 -07:00
Jan Kara
08c6a96fd7 [PATCH] ext3: fix options parsing
Fix a problem with ext3 mount option parsing.  When remount of a filesystem
fails, old options are now restored.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-12 16:01:01 -07:00
Andrew Morton
d53d9f16ea [PATCH] name_to_dev_t warning fix
kernel/power/disk.c needs a declaration of name_to_dev_t() in scope.  mount.h
seems like an appropriate choice.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-12 16:00:58 -07:00
Len Brown
5028770a42 [ACPI] merge acpi-2.6.12 branch into latest Linux 2.6.13-rc...
Signed-off-by: Len Brown <len.brown@intel.com>
2005-07-12 17:21:56 -04:00
Linus Torvalds
9ffc7a0ebf Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2005-07-12 13:16:40 -07:00
Alexey Dobriyan
ab611487d8 [NET]: __be'ify *_type_trans()
tr_type_trans(), hippi_type_trans() left as-is.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-12 12:08:43 -07:00
david-b@pacbell.net
00ab997dd2 [PATCH] USB: another cdc descriptor
This adds another CDC descriptor type to <linux/usb_cdc.h>; the main claim
to fame for this is that some Motorola phones include it.  It's not currently
needed by any driver code; included for completeness.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-07-12 11:52:57 -07:00
Olav Kongas
5db539e49f [PATCH] USB: Fix kmalloc's flags type in USB
Greg,

This patch fixes the kmalloc() flags argument type in USB
subsystem; hopefully all of its occurences. The patch was
made against patch-2.6.12-git2 from Jun 20.

Cleanup of flags for kmalloc() in USB subsystem.

Signed-off-by: Olav Kongas <ok@artecdesign.ee>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-07-12 11:52:56 -07:00
David Shaohua Li
c9c3e457de [ACPI] PNPACPI vs sound IRQ
http://bugme.osdl.org/show_bug.cgi?id=4016

Written-by: David Shaohua Li <shaohua.li@intel.com>
Acked-by: Adam Belay <abelay@novell.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-07-12 00:03:30 -04:00
Ashok Raj
55e59c511c [ACPI] Evaluate CPEI Processor Override flag
ACPI 3.0 added a Correctable Platform Error Interrupt (CPEI)
Processor Overide flag to MADT.Platform_Interrupt_Source.
Record the processor that was provided as hint from ACPI.

Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-07-12 00:01:41 -04:00
David Shaohua Li
4e10d12a3d [ACPI] Bind PCI devices with ACPI devices
Implement the framework for binding physical devices
with ACPI devices. A physical bus like PCI bus
should create a 'acpi_bus_type', with:

.find_device:
        For device which has parent such as normal PCI devices.

.find_bridge:
        It's for special devices, such as PCI root bridge
	or IDE controller.  Such devices generally haven't a
	parent or ->bus. We use the special method
	to get an ACPI handle.

Uses new field in struct device: firmware_data

http://bugzilla.kernel.org/show_bug.cgi?id=4277

Signed-off-by: David Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-07-11 23:28:24 -04:00
Alexey Starikovskiy
e2a5b420f7 [ACPI] ACPI poweroff fix
Register an "acpi" system device to be notified of shutdown preparation.
This depends on CONFIG_PM

http://bugzilla.kernel.org/show_bug.cgi?id=4041

Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-07-11 23:20:49 -04:00
David S. Miller
63522f7fdb [NETLINK]: Reserve NETLINK_NETFILTER.
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-11 14:29:11 -07:00
Linus Torvalds
200d481f28 Merge master.kernel.org:/pub/scm/linux/kernel/git/tglx/mtd-2.6 2005-07-11 10:18:18 -07:00
Dmitry Torokhov
e0d21d9cca Merge rsync://www.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2005-07-11 00:58:04 -05:00
David S. Miller
f7ceba360c [SPARC64]: Add syscall auditing support.
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-10 19:29:45 -07:00
David S. Miller
d369ddd2fc [SPARC64]: Add __read_mostly support.
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-10 15:45:11 -07:00
David L Stevens
ca9b907d14 [IPV4]: multicast API "join" issues
This patch corrects a few problems with the IP_ADD_MEMBERSHIP
socket option:

1) The existing code makes an attempt at reference counting joins when
   using the ip_mreqn/imr_ifindex interface. Joining the same group
   on the same socket is an error, whatever the API. This leads to
   unexpected results when mixing ip_mreqn by index with ip_mreqn by
   address, ip_mreq, or other API's. For example, ip_mreq followed by
   ip_mreqn of the same group will "work" while the same two reversed
   will not.
           Fixed to always return EADDRINUSE on a duplicate join and
   removed the (now unused) reference count in ip_mc_socklist.

2) The group-search list in ip_mc_join_group() is comparing a full 
   ip_mreqn structure and all of it must match for it to find the
   group. This doesn't correctly match a group that was joined with
   ip_mreq or ip_mreqn with an address (with or without an index). It
   also doesn't match groups that are joined by different addresses on
   the same interface. All of these are the same multicast group,
   which is identified by group address and interface index.
           Fixed the check to correctly match groups so we don't get
   duplicate group entries on the ip_mc_socklist.

3) The old code allocates a multicast address before searching for
   duplicates requiring it to free in various error cases. This
   patch moves the allocate until after the search and
   igmp_max_memberships check, so never a need to allocate, then free
   an entry.

Signed-off-by: David L Stevens <dlstevens@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-08 17:38:07 -07:00
Victor Fusco
86a76caf87 [NET]: Fix sparse warnings
From: Victor Fusco <victor@cetuc.puc-rio.br>

Fix the sparse warning "implicit cast to nocast type"

Signed-off-by: Victor Fusco <victor@cetuc.puc-rio.br>
Signed-off-by: Domen Puncer <domen@coderock.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-08 14:57:47 -07:00
NeilBrown
4c4cd222ee [PATCH] nfsd4: check lock type against openmode.
We shouldn't be allowing, e.g., write locks on files not open for read.  To
enforce this, we add a pointer from the lock stateid back to the open stateid
it came from, so that the check will continue to be correct even after the
open is upgraded or downgraded.

Signed-off-by: Andy Adamson <andros@citi.umich.edu>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:24:11 -07:00
NeilBrown
b700949b78 [PATCH] nfsd4: return better error on io incompatible with open mode
from RFC 3530:
"Share reservations are established by OPEN operations and by their
nature are mandatory in that when the OPEN denies READ or WRITE
operations, that denial results in such operations being rejected
with error NFS4ERR_LOCKED."

(Note that share_denied is really only a legal error for OPEN.)

Signed-off-by: Andy Adamson <andros@citi.umich.edu>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:24:09 -07:00
NeilBrown
7fb64cee34 [PATCH] nfsd4: seqid comments
Add some comments on the use of so_seqid, in an attempt to avoid some of the
confusion outlined in the previous patch....

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:24:09 -07:00
NeilBrown
a6ccbbb886 [PATCH] nfsd4: fix sync'ing of recovery directory
We need to fsync the recovery directory after writing to it, but we weren't
doing this correctly.  (For example, we weren't taking the i_sem when calling
->fsync().)

Just reuse the existing nfsd fsync code instead.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:24:07 -07:00
Miklos Szeredi
751c404b8f [PATCH] namespace: rename _mntput to mntput_no_expire
This patch renames _mntput() to something a little more descriptive:
mntput_no_expire().

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:23:52 -07:00
Miklos Szeredi
55e700b924 [PATCH] namespace: rename mnt_fslink to mnt_expire
This patch renames vfsmount->mnt_fslink to something a little more
descriptive: vfsmount->mnt_expire.

Signed-off-by: Mike Waychison <michael.waychison@sun.com>
Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:23:52 -07:00
Miklos Szeredi
1ce88cf466 [PATCH] namespace.c: fix race in mark_mounts_for_expiry()
This patch fixes a race found by Ram in mark_mounts_for_expiry() in
fs/namespace.c.

The bug can only be triggered with simultaneous exiting of a process having
a private namespace, and expiry of a mount from within that namespace.
It's practically impossible to trigger, and I haven't even tried.  But
still, a bug is a bug.

The race happens when put_namespace() is called by another task, while
mark_mounts_for_expiry() is between atomic_read() and get_namespace().  In
that case get_namespace() will be called on an already dead namespace with
unforeseeable results.

The solution was suggested by Al Viro, with his own words:

      Instead of screwing with atomic_read() in there, why don't we
      simply do the following:
      	a) atomic_dec_and_lock() in put_namespace()
      	b) __put_namespace() called without dropping lock
      	c) the first thing done by __put_namespace would be
      struct vfsmount *root = namespace->root;
      namespace->root = NULL;
      spin_unlock(...);
      ....
      umount_tree(root);
      ...
      	d) check in mark_... would be simply namespace && namespace->root.

      And we are all set; no screwing around with atomic_read(), no magic
      at all.  Dying namespace gets NULL ->root.
      All changes of ->root happen under spinlock.
      If under a spinlock we see non-NULL ->mnt_namespace, it won't be
      freed until we drop the lock (we will set ->mnt_namespace to NULL
      under that lock before we get to freeing namespace).
      If under a spinlock we see non-NULL ->mnt_namespace and
      ->mnt_namespace->root, we can grab a reference to namespace and be
      sure that it won't go away.

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Acked-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:23:51 -07:00
Christoph Lameter
6c036527a6 [PATCH] mostly_read data section
Add a new section called ".data.read_mostly" for data items that are read
frequently and rarely written to like cpumaps etc.

If these maps are placed in the .data section then these frequenly read
items may end up in cachelines with data is is frequently updated.  In that
case all processors in an SMP system must needlessly reload the cachelines
again and again containing elements of those frequently used variables.

The ability to share these cachelines will allow each cpu in an SMP system
to keep local copies of those shared cachelines thereby optimizing
performance.

Signed-off-by: Alok N Kataria <alokk@calsoftinc.com>
Signed-off-by: Shobhit Dayal <shobhit@calsoftinc.com>
Signed-off-by: Christoph Lameter <christoph@scalex86.org>
Signed-off-by: Shai Fultheim <shai@scalex86.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:23:46 -07:00
Alexey Dobriyan
0db925af1d [PATCH] propagate __nocast annotations
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:23:46 -07:00
Nick Piggin
a39722034a [PATCH] page_uptodate locking scalability
Use a bit spin lock in the first buffer of the page to synchronise asynch
IO buffer completions, instead of the global page_uptodate_lock, which is
showing some scalabilty problems.

Signed-off-by: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:23:45 -07:00
Bernard Blackham
e00d9967e3 [PATCH] pm: fix u32 vs. pm_message_t confusion in cpufreq
Fix u32 vs pm_message_t confusion in cpufreq.

Signed-off-by: Bernard Blackham <bernard@blackham.com.au>
Signed-off-by: Pavel Machek <pavel@suse.cz>
Cc: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:23:43 -07:00
Anton Blanchard
cf36680887 [PATCH] move ioprio syscalls into syscalls.h
- Make ioprio syscalls return long, like set/getpriority syscalls.
- Move function prototypes into syscalls.h so we can pick them up in the
  32/64bit compat code.

Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:23:37 -07:00
Marcelo Tosatti
79b9ce311e [PATCH] print order information when OOM killing
Dump the current allocation order when OOM killing.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:23:35 -07:00
Mark Fasheh
cb2c023375 [PATCH] export generic_drop_inode() to modules
OCFS2 wants to mark an inode which has been orphaned by another node so
that during final iput it takes the correct path through the VFS and can
pass through the OCFS2 delete_inode callback.  Since i_nlink can get out of
date with other nodes, the best way I see to accomplish this is by clearing
i_nlink on those inodes at drop_inode time.  Other than this small amount
of work, nothing different needs to happen, so I think it would be cleanest
to be able to just call generic_drop_inode at the end of the OCFS2
drop_inode callback.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:23:35 -07:00
Thomas Gleixner
97f927a4d7 [MTD] XIP cleanup
Move the architecture dependend code into include/asm/mtd-xip.h

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-07-07 16:50:16 +02:00
Linus Torvalds
359ea2f135 Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2005-07-06 17:04:06 -07:00
Herbert Xu
fbdae9f3e7 [CRYPTO] Ensure cit_iv is aligned correctly
This patch ensures that cit_iv is aligned according to cra_alignmask
by allocating it as part of the tfm structure.  As a side effect the
crypto layer will also guarantee that the tfm ctx area has enough space
to be aligned by cra_alignmask.  This allows us to remove the extra
space reservation from the Padlock driver.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-06 13:53:29 -07:00
Herbert Xu
9547737799 [CRYPTO] Add alignmask for low-level cipher implementations
The VIA Padlock device requires the input and output buffers to
be aligned on 16-byte boundaries.  This patch adds the alignmask
attribute for low-level cipher implementations to indicate their
alignment requirements.

The mid-level crypt() function will copy the input/output buffers
if they are not aligned correctly before they are passed to the
low-level implementation.

Strictly speaking, some of the software implementations require
the buffers to be aligned on 4-byte boundaries as they do 32-bit
loads.  However, it is not clear whether it is better to copy
the buffers or pay the penalty for unaligned loads/stores.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-06 13:52:09 -07:00
Herbert Xu
40725181b7 [CRYPTO] Add support for low-level multi-block operations
This patch adds hooks for cipher algorithms to implement multi-block
ECB/CBC operations directly.  This is expected to provide significant
performance boots to the VIA Padlock.

It could also be used for improving software implementations such as
AES where operating on multiple blocks at a time may enable certain
optimisations.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-06 13:51:52 -07:00
Jeff Mahoney
5e6557722e [PATCH] openfirmware: generate device table for userspace
This converts the usage of struct of_match to struct of_device_id,
similar to pci_device_id.  This allows a device table to be generated,
which can be parsed by depmod(8) to generate a map file for module
loading.

In order for hotplug to work with macio devices, patches to
module-init-tools and hotplug must be applied.  Those patches are
available at:

 ftp://ftp.suse.com/pub/people/jeffm/linux/macio-hotplug/

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-06 12:55:20 -07:00
Artem B. Bityuckiy
b3539219c9 Merge with rsync://fileserver/linux
Update to 2.6.12-rc3
2005-07-06 19:40:38 +02:00
Rusty Lynch
6772926bef [PATCH] kprobes: fix namespace problem and sparc64 build
The following renames arch_init, a kprobes function for performing any
architecture specific initialization, to arch_init_kprobes in order to
cleanup the namespace.

Also, this patch adds arch_init_kprobes to sparc64 to fix the sparc64 kprobes
build from the last return probe patch.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-05 19:19:00 -07:00