Certain early SATA drives have problems with write requests whose
length satisfy the equation "sectors % 15 == 1", on the SiI 3112.
Other drives, and other SiI controllers, are not affected.

The fix for this problem is to avoid such requests, in one of three
ways, for the affect drive+controller combos:
1) Limit all writes to 15 sectors
2) Use block layer features to avoid creating requests whose
   length satisfies the above equation.
3) When a request satisfies the above equation, split the request
   into two writes, neither of which satisfies the equation.

I chose fix #1, the most simple to implement.  After discussion with
Silicon Image and others regarding the impact of this fix, I have
decided to remain with fix #1, and will not be implementing a
"better fix".  This means that the affected SATA drives will see
decreased performance, but set of affected drives is small and will
never grow larger.

Further, the complexity of implementing solution #2 or
solution #3 is rather large.

When implementing lba48 'large request' support, I unintentionally
broke the fix for these affected drives.  Kudos to Ricky Beam for
noticing this.

This change restores the fix, by adding a flag ATA_DFLAG_LOCK_SECTORS
to indicate that the max_sectors value set by the low-level driver
should never be changed.

into ppc970.osdl.org:/home/torvalds/v2.6/linux

into ppc970.osdl.org:/home/torvalds/v2.6/linux

into ppc970.osdl.org:/home/torvalds/v2.6/linux

into ppc970.osdl.org:/home/torvalds/v2.6/linux

Also clean it all up - use get_cpu()/put_cpu() instead of
playing games by hand with preemption.

Here is a simple patch which drops some out-of-date code in the w83781d
and w83627hf i2c chip drivers. These bits are left over from the times
when chip drivers were setting default limits at init.


Signed-off-by: Jean Delvare <khali at linux-fr dot org>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

into kroah.com:/home/greg/linux/BK/driver-2.6

Al missed this one in his sparse fixes
Signed-off-by: Randy Dunlap <rddunlap@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

From: Mika Kukkonen <mika@osdl.org>
Signed-off-by: Randy Dunlap <rddunlap@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

From: Mika Kukkonen <mika@osdl.org>
Signed-off-by: Randy Dunlap <rddunlap@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

From: Mika Kukkonen <mika@osdl.org>
Signed-off-by: Randy Dunlap <rddunlap@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Split ata_eng_timeout into the main part (ata_qc_timeout)
and the part called by the SCSI layer (ata_eng_timeout).

Zero behavior changes.

On Sun, Jun 20, 2004 at 05:46:32PM -0700, Andrew Morton wrote:
>...
> All 226 patches:
>...
> bk-libata.patch
>...

drivers/scsi/hosts.h is obsolete, use scsi/scsi_host.h.

Please apply
Adrian

by "other". The normal permissions for the kernel tree
should be -rw-r--r--.

sock_fprog instances that had kernel pointer in ->filter (both of them -
in ppp_generic and isdn_ppp) replaced with explicit pairs len + kernel
pointer.  Copying of userland sock_fprog (with its __user ->filter)
cleaned up and sanitized.

Trivial annotation done in the rest of ->ioctl() in ppp_generic and
isdn_ppp.

into ppc970.osdl.org:/home/torvalds/v2.6/linux

into intel.com:/home/lenb/bk/linux-acpi-test-2.6.7

Reflect that only the dstirq depends on the dstapic.

into intel.com:/home/lenb/bk/linux-acpi-test-2.6.7

caused by errant fix for OSDL 2835

Requested by Promise.  The hardware isn't widely deployed yet,
with almost all users being early evaluators, so this should be OK.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@redhat.com>

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@redhat.com>