linux-toradex.git/include/linux, branch v2.6.13.4

Fix nasty ncpfs symlink handling bug.

2005-08-20T01:02:56+00:00

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

Merge master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6

2005-08-18T22:16:12+00:00

[PATCH] serverworks: add support for new southbridge IDE

2005-08-18T20:30:35+00:00

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 
Acked-by: Jeff Garzik 
Signed-off-by: Bartlomiej Zolnierkiewicz

[PATCH] ide: add support for Netcell Revolution to pci-ide generic driver

2005-08-18T20:27:07+00:00

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 
Cc: Bartlomiej Zolnierkiewicz 
Cc: Jeff Garzik 
Signed-off-by: Andrew Morton 
Signed-off-by: Bartlomiej Zolnierkiewicz

[PATCH] ide: fix PCI_DEVIEC_ID_APPLE_UNI_N_ATA spelling

2005-08-18T20:19:55+00:00

Signed-off-by: Grant Coady 
Signed-off-by: Bartlomiej Zolnierkiewicz

[PATCH] NFS: Introduce the use of inode->i_lock to protect fields in nfsi

2005-08-18T19:53:57+00:00

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 
Cc: Trond Myklebust 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] NFS: use atomic bitops to manipulate flags in nfsi->flags

2005-08-18T19:53:56+00:00

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 
Cc: Trond Myklebust 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] NFS: split nfsi->flags into two fields

2005-08-18T19:53:56+00:00

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 
Cc: Trond Myklebust 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] PCI: 6700/6702PXH quirk

2005-08-17T04:06:24+00:00

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 
Signed-off-by: Greg Kroah-Hartman 
Signed-off-by: Linus Torvalds

[PATCH] NFS: Ensure we always update inode->i_mode when doing O_EXCL creates

2005-08-16T16:30:58+00:00

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 
Signed-off-by: Linus Torvalds