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Revision 8682164a66325cab07620082eb7f413b547f4b4a authored by Evgeniy Dushistov on 29 January 2007, 21:19:55 UTC, committed by Linus Torvalds on 30 January 2007, 16:26:45 UTC 
[PATCH] ufs: truncate negative to unsigned fix
 
During ufs_trunc_direct which is subroutine of ufs::truncate, we try the first
of all free parts of block and then whole blocks.  But we calculate size of
block's part to free in the wrong way.

This may cause bad update of used blocks and fragments statistic, and you can
got report that you have free 32T on 1Gb partition.

Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent a685e26
Raw File
cpqarray.txt 
This driver is for Compaq's SMART2 Intelligent Disk Array Controllers.

Supported Cards:
----------------

This driver is known to work with the following cards:

	* SMART (EISA)
	* SMART-2/E (EISA)
	* SMART-2/P
	* SMART-2DH
	* SMART-2SL
	* SMART-221
	* SMART-3100ES
	* SMART-3200
	* Integrated Smart Array Controller
	* SA 4200
	* SA 4250ES
	* SA 431
	* RAID LC2 Controller

It should also work with some really old Disk array adapters, but I am
unable to test against these cards:

	* IDA
	* IDA-2
	* IAES


EISA Controllers:
-----------------

If you want to use an EISA controller you'll have to supply some
modprobe/lilo parameters.  If the driver is compiled into the kernel, must
give it the controller's IO port address at boot time (it is not
necessary to specify the IRQ).  For example, if you had two SMART-2/E
controllers, in EISA slots 1 and 2 you'd give it a boot argument like
this:

	smart2=0x1000,0x2000

If you were loading the driver as a module, you'd give load it like this:

	modprobe cpqarray eisa=0x1000,0x2000

You can use EISA and PCI adapters at the same time.


Device Naming:
--------------

You need some entries in /dev for the ida device.  MAKEDEV in the /dev
directory can make device nodes for you automatically.  The device setup is
as follows:

Major numbers:
	72	ida0
	73	ida1
	74	ida2
	75	ida3
	76	ida4
	77	ida5
	78	ida6
	79	ida7

Minor numbers:
        b7 b6 b5 b4 b3 b2 b1 b0
        |----+----| |----+----|
             |           |
             |           +-------- Partition ID (0=wholedev, 1-15 partition)
             |
             +-------------------- Logical Volume number

The device naming scheme is:
/dev/ida/c0d0		Controller 0, disk 0, whole device
/dev/ida/c0d0p1		Controller 0, disk 0, partition 1
/dev/ida/c0d0p2		Controller 0, disk 0, partition 2
/dev/ida/c0d0p3		Controller 0, disk 0, partition 3

/dev/ida/c1d1		Controller 1, disk 1, whole device
/dev/ida/c1d1p1		Controller 1, disk 1, partition 1
/dev/ida/c1d1p2		Controller 1, disk 1, partition 2
/dev/ida/c1d1p3		Controller 1, disk 1, partition 3


Changelog:
==========

10-28-2004 :	General cleanup, syntax fixes for in-kernel driver version.
		James Nelson <james4765@gmail.com>


1999 :		Original Document
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