linux-stable.git/drivers/s390/block, branch linux-2.6.26.y

S390 dasd: fix data size for PSF/PRSSD command

2008-09-08T11:44:18+00:00

commit 49fd38bdaa96f093fcad3176a781a4d0de8f8602 upstream

The Perform Subsystem Function/Prepare for Read Subsystem Data
command requires 12 bytes of parameter data, but the respective data
structure dasd_psf_prssd_data has a length of 16 bytes.
Current storage servers ignore the obsolete bytes, but older models
fail to execute the command and report an incorrect length error.
This causes the device initilization for these devices to fail.
To fix this problem we need to correct the dasd_psf_prssd_data
structure and shorten it to the correct length.

Reported-by: Ivan Warren 
Reviewed-by: Ivan Warren 
Tested-by: Ivan Warren 
Signed-off-by: Stefan Weinhuber 
Signed-off-by: Greg Kroah-Hartman

[S390] dasd: use a generic wait_queue for sleep_on

2008-05-30T08:03:35+00:00

Use a generic wait_queue to prevent the wait_queue in dasd_sleep_on_
functions from being referenced by callback_data while it does not
exist any more.

Signed-off-by: Stefan Haberland  
Signed-off-by: Martin Schwidefsky

[S390] dasd: fix timeout handling in interrupt handler

2008-05-15T14:52:40+00:00

When the dasd_int_handler is called with an error code instead of
an irb, the associated request should be restarted. This handling
was missing from the -ETIMEDOUT case. In fact it should be done in
any case.

Signed-off-by: Stefan Weinhuber 
Signed-off-by: Martin Schwidefsky

[S390] dasd: Use const in busid functions.

2008-05-15T14:52:39+00:00

We should use 'const char *' in the busid functions since the
strings are not modified anyway.

Signed-off-by: Cornelia Huck 
Signed-off-by: Martin Schwidefsky

s390: use non-racy method for proc entries creation

2008-04-29T15:06:21+00:00

Use proc_create() to make sure that ->proc_fops be setup before gluing PDE to
main tree.

Signed-off-by: Denis V. Lunev 
Cc: Martin Schwidefsky 
Cc: Heiko Carstens 
Cc: Alexey Dobriyan 
Cc: "Eric W. Biederman" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

proc: remove proc_root from drivers

2008-04-29T15:06:18+00:00

Remove proc_root export.  Creation and removal works well if parent PDE is
supplied as NULL -- it worked always that way.

So, one useless export removed and consistency added, some drivers created
PDEs with &proc_root as parent but removed them as NULL and so on.

Signed-off-by: Alexey Dobriyan 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

return pfn from direct_access, for XIP

2008-04-28T15:58:23+00:00

Alter the block device ->direct_access() API to work with the new
get_xip_mem() API (that requires both kaddr and pfn are returned).

Some architectures will not do the right thing in their virt_to_page() for use
by XIP (to translate from the kernel virtual address returned by
direct_access(), to a user mappable pfn in XIP's page fault handler.

However, we can't switch it to just return the pfn and not the kaddr, because
we have no good way to get a kva from a pfn, and XIP requires the kva for its
read(2) and write(2) handlers.  So we have to return both.

Signed-off-by: Jared Hulbert 
Signed-off-by: Nick Piggin 
Cc: Carsten Otte 
Cc: Heiko Carstens 
Cc: linux-mm@kvack.org
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[S390] Remove code duplication from monreader / dcssblk.

2008-04-17T05:47:07+00:00

Move the function that prints the segment warning messages found in the
monreader driver and the dcssblk driver to the extmem base code.

Signed-off-by: Martin Schwidefsky 
Signed-off-by: Heiko Carstens

[S390] Fix a lot of sparse warnings.

2008-04-17T05:47:06+00:00

Most noteable part of this commit is the new local header file entry.h
which contains all the function declarations of functions that get only
called from asm code or are arch internal. That way we can avoid extern
declarations in C files.
This is more or less the same that was done for sparc64.

Signed-off-by: Martin Schwidefsky 
Signed-off-by: Heiko Carstens

[S390] replace remaining FUNCTION occurrences

2008-04-17T05:47:04+00:00

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison 
Signed-off-by: Andrew Morton 
Signed-off-by: Martin Schwidefsky 
Signed-off-by: Heiko Carstens