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Tejun Heo [Thu, 23 Apr 2009 02:05:18 +0000 (11:05 +0900)]
block: clean up request completion API
Request completion has gone through several changes and became a bit
messy over the time. Clean it up.
1. end_that_request_data() is a thin wrapper around
end_that_request_data_first() which checks whether bio is NULL
before doing anything and handles bidi completion.
blk_update_request() is a thin wrapper around
end_that_request_data() which clears nr_sectors on the last
iteration but doesn't use the bidi completion.
Clean it up by moving the initial bio NULL check and nr_sectors
clearing on the last iteration into end_that_request_data() and
renaming it to blk_update_request(), which makes blk_end_io() the
only user of end_that_request_data(). Collapse
end_that_request_data() into blk_end_io().
2. There are four visible completion variants - blk_end_request(),
__blk_end_request(), blk_end_bidi_request() and end_request().
blk_end_request() and blk_end_bidi_request() uses blk_end_request()
as the backend but __blk_end_request() and end_request() use
separate implementation in __blk_end_request() due to different
locking rules.
blk_end_bidi_request() is identical to blk_end_io(). Collapse
blk_end_io() into blk_end_bidi_request(), separate out request
update into internal helper blk_update_bidi_request() and add
__blk_end_bidi_request(). Redefine [__]blk_end_request() as thin
inline wrappers around [__]blk_end_bidi_request().
3. As the whole request issue/completion usages are about to be
modified and audited, it's a good chance to convert completion
functions return bool which better indicates the intended meaning
of return values.
4. The function name end_that_request_last() is from the days when it
was a public interface and slighly confusing. Give it a proper
internal name - blk_finish_request().
5. Add description explaning that blk_end_bidi_request() can be safely
used for uni requests as suggested by Boaz Harrosh.
The only visible behavior change is from #1. nr_sectors counts are
cleared after the final iteration no matter which function is used to
complete the request. I couldn't find any place where the code
assumes those nr_sectors counters contain the values for the last
segment and this change is good as it makes the API much more
consistent as the end result is now same whether a request is
completed using [__]blk_end_request() alone or in combination with
blk_update_request().
API further cleaned up per Christoph's suggestion.
[ Impact: cleanup, rq->*nr_sectors always updated after req completion ]
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Boaz Harrosh <bharrosh@panasas.com>
Cc: Christoph Hellwig <hch@infradead.org>
Tejun Heo [Thu, 23 Apr 2009 02:05:18 +0000 (11:05 +0900)]
block: kill blk_end_request_callback()
With recent IDE updates, blk_end_request_callback() doesn't have any
user now. Kill it.
[ Impact: removal of unused convoluted interface ]
Signed-off-by: Tejun Heo <tj@kernel.org>
Tejun Heo [Thu, 23 Apr 2009 02:05:18 +0000 (11:05 +0900)]
block: reorganize request fetching functions
Impact: code reorganization
elv_next_request() and elv_dequeue_request() are public block layer
interface than actual elevator implementation. They mostly deal with
how requests interact with block layer and low level drivers at the
beginning of rqeuest processing whereas __elv_next_request() is the
actual eleveator request fetching interface.
Move the two functions to blk-core.c. This prepares for further
interface cleanup.
Signed-off-by: Tejun Heo <tj@kernel.org>
Tejun Heo [Thu, 23 Apr 2009 02:05:18 +0000 (11:05 +0900)]
block: reorder request completion functions
Reorder request completion functions such that
* All request completion functions are located together.
* Functions which are used by only one caller is put right above the
caller.
* end_request() is put after other completion functions but before
blk_update_request().
This change is for completion function cleanup which will follow.
[ Impact: cleanup, code reorganization ]
Signed-off-by: Tejun Heo <tj@kernel.org>
Tejun Heo [Thu, 23 Apr 2009 02:05:18 +0000 (11:05 +0900)]
block: clean up misc stuff after block layer timeout conversion
* In blk_rq_timed_out_timer(), else { if } to else if
* In blk_add_timer(), simplify if/else block
[ Impact: cleanup ]
Signed-off-by: Tejun Heo <tj@kernel.org>
Tejun Heo [Thu, 23 Apr 2009 02:05:18 +0000 (11:05 +0900)]
block: cleanup REQ_SOFTBARRIER usages
blk_insert_request() doesn't need to worry about REQ_SOFTBARRIER.
Don't set it. Combined with recent ide updates, REQ_SOFTBARRIER is
now only used in elevator proper and for discard requests.
[ Impact: cleanup ]
Signed-off-by: Tejun Heo <tj@kernel.org>
Tejun Heo [Thu, 23 Apr 2009 02:05:17 +0000 (11:05 +0900)]
block: don't set REQ_NOMERGE unnecessarily
RQ_NOMERGE_FLAGS already clears defines which REQ flags aren't
mergeable. There is no reason to specify it superflously. It only
adds to confusion. Don't set REQ_NOMERGE for barriers and requests
with specific queueing directive. REQ_NOMERGE is now exclusively used
by the merging code.
[ Impact: cleanup ]
Signed-off-by: Tejun Heo <tj@kernel.org>
Tejun Heo [Thu, 23 Apr 2009 02:05:17 +0000 (11:05 +0900)]
block: kill blk_start_queueing()
blk_start_queueing() is identical to __blk_run_queue() except that it
doesn't check for recursion. None of the current users depends on
blk_start_queueing() running request_fn directly. Replace usages of
blk_start_queueing() with [__]blk_run_queue() and kill it.
[ Impact: removal of mostly duplicate interface function ]
Signed-off-by: Tejun Heo <tj@kernel.org>
Tejun Heo [Thu, 23 Apr 2009 02:05:17 +0000 (11:05 +0900)]
block: merge blk_invoke_request_fn() into __blk_run_queue()
__blk_run_queue wraps blk_invoke_request_fn() such that it
additionally removes plug and bails out early if the queue is empty.
Both extra operations have their own pending mechanisms and don't
cause any harm correctness-wise when they are done superflously.
The only user of blk_invoke_request_fn() being blk_start_queue(),
there isn't much reason to keep both functions around. Merge
blk_invoke_request_fn() into __blk_run_queue() and make
blk_start_queue() use __blk_run_queue() instead.
[ Impact: merge two subtly different internal functions ]
Signed-off-by: Tejun Heo <tj@kernel.org>
Jeff Moyer [Wed, 22 Apr 2009 12:08:13 +0000 (14:08 +0200)]
block: implement blkdev_readpages
Doing a proper block dev ->readpages() speeds up the crazy dump(8)
approach of using interleaved process IO.
Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Bartlomiej Zolnierkiewicz [Tue, 21 Apr 2009 07:27:03 +0000 (09:27 +0200)]
block: enable by default support for large devices and files on 32-bit archs
Enable by default support for large devices and files (CONFIG_LBD):
- With 1TB disks being a commodity hardware it is quite easy to hit 2TB
limitation while building RAIDs etc. and many distros have been using
CONFIG_LBD=y by default already (at least Fedora 10 and openSUSE 11.1).
- This should also prevent a subtle ext4 filesystem compatibility issue:
mke2fs.ext4 defaults to creating filesystems with huge_files feature
enabled and such filesystems cannot be later mounted read-write on
machines with CONFIG_LBD=n (it should be quite easy to hit this issue
when trying to use filesystem created using distro kernel on system
running the self-build kernel, think about USB disk enclosures & co.).
While at it:
- Clarify config option help text w.r.t. mounting ext4 filesystems
(they can be mounted with CONFIG_LBD=n but in the read-only mode).
Cc: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Tejun Heo [Tue, 21 Apr 2009 03:16:56 +0000 (12:16 +0900)]
ide-dma: don't reset request fields on dma_timeout_retry()
Impact: drop unnecessary code
Now that everything uses bio and block operations, there is no need to
reset request fields manually when retrying a request. Every field is
guaranteed to be always valid. Drop unnecessary request field
resetting from ide_dma_timeout_retry().
Signed-off-by: Tejun Heo <tj@kernel.org>
Tejun Heo [Sat, 18 Apr 2009 23:46:03 +0000 (08:46 +0900)]
ide: drop rq->data handling from ide_map_sg()
Impact: remove code path which is no longer necessary
All IDE data transfers now use rq->bio. Simplify ide_map_sg()
accordingly.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Tejun Heo [Sat, 18 Apr 2009 23:46:03 +0000 (08:46 +0900)]
ide-atapi: kill unused fields and callbacks
Impact: remove fields and code paths which are no longer necessary
Now that ide-tape uses standard mechanisms to transfer data, special
case handling for bh handling can be dropped from ide-atapi. Drop the
followings.
* pc->cur_pos, b_count, bh and b_data
* drive->pc_update_buffers() and pc_io_buffers().
Signed-off-by: Tejun Heo <tj@kernel.org>
Tejun Heo [Sat, 18 Apr 2009 23:46:03 +0000 (08:46 +0900)]
ide-tape: simplify read/write functions
Impact: cleanup
idetape_chrdev_read/write() functions are unnecessarily complex when
everything can be handled in a single loop. Collapse
idetape_add_chrdev_read/write_request() into the rw functions and
simplify the implementation.
Signed-off-by: Tejun Heo <tj@kernel.org>
Tejun Heo [Sat, 18 Apr 2009 23:46:03 +0000 (08:46 +0900)]
ide-tape: use byte size instead of sectors on rw issue functions
Impact: cleanup
Byte size is what most issue functions deal with, make
idetape_queue_rw_tail() and its wrappers take byte size instead of
sector counts. idetape_chrdev_read() and write() functions are
converted to use tape->buffer_size instead of ctl from tape->cap.
This cleans up code a little bit and will ease the next r/w
reimplementation.
Signed-off-by: Tejun Heo <tj@kernel.org>
Tejun Heo [Sat, 18 Apr 2009 23:46:02 +0000 (08:46 +0900)]
ide-tape: unify r/w init paths
Impact: cleanup
Read and write init paths are almost identical. Unify them into
idetape_init_rw().
Signed-off-by: Tejun Heo <tj@kernel.org>
Tejun Heo [Sat, 18 Apr 2009 23:46:02 +0000 (08:46 +0900)]
ide-tape: kill idetape_bh
Impact: kill now unnecessary idetape_bh
With everything using standard mechanisms, there is no need for
idetape_bh anymore. Kill it and use tape->buf, cur and valid to
describe data buffer instead.
Changes worth mentioning are...
* idetape_queue_rq_tail() now always queue tape->buf and and adjusts
buffer state properly before completion.
* idetape_pad_zeros() clears the buffer only once.
Signed-off-by: Tejun Heo <tj@kernel.org>
Tejun Heo [Sat, 18 Apr 2009 23:46:02 +0000 (08:46 +0900)]
ide-tape: use standard data transfer mechanism
Impact: use standard way to transfer data
ide-tape uses rq in an interesting way. For r/w requests, rq->special
is used to carry a private buffer management structure idetape_bh and
rq->nr_sectors and current_nr_sectors are initialized to the number of
idetape blocks which isn't necessary 512 bytes. Also,
rq->current_nr_sectors is used to report back the residual count in
units of idetape blocks.
This peculiarity taxes both block layer and ide. ide-atapi has
different paths and hooks to accomodate it and what a rq means becomes
quite confusing and making changes at the block layer becomes quite
difficult and error-prone.
This patch makes ide-tape use bio instead. With the previous patch,
ide-tape currently is using single contiguos buffer so replacing it
isn't difficult. Data buffer is mapped into bio using
blk_rq_map_kern() in idetape_queue_rw_tail(). idetape_io_buffers()
and idetape_update_buffers() are dropped and pc->bh is set to null to
tell ide-atapi to use standard data transfer mechanism and idetape_bh
byte counts are updated by the issuer on completion using the residual
count.
This change also nicely removes the FIXME in ide_pc_intr() where
ide-tape rqs need to be completed using ide_rq_bytes() instead of
blk_rq_bytes() (although this didn't really matter as the request
didn't have bio).
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jens Axboe <jens.axboe@oracle.com>
Tejun Heo [Sat, 18 Apr 2009 23:46:02 +0000 (08:46 +0900)]
ide-tape: use single continuous buffer
Impact: simpler buffer allocation and handling, kills OOM, fix DMA transfers
ide-tape has its own multiple buffer mechanism using struct
idetape_bh. It allocates buffer with decreasing order-of-two
allocations so that it results in minimum number of segments.
However, the implementation is quite complex and works in a way that
no other block or ide driver works necessitating a lot of special case
handling.
The benefit this complex allocation scheme brings is questionable as
PIO or DMA the number of segments (16 maximum) doesn't make any
noticeable difference and it also doesn't negate the need for multiple
order allocation which can fail under memory pressure or high
fragmentation although it does lower the highest order necessary by
one when the buffer size isn't power of two.
As the first step to remove the custom buffer management, this patch
makes ide-tape allocate single continous buffer. The maximum order is
four. I doubt the change would cause any trouble but if it ever
matters, it should be converted to regular sg mechanism like everyone
else and even in that case dropping custom buffer handling and moving
to standard mechanism first make sense as an intermediate step.
This patch makes the first bh to contain the whole buffer and drops
multi bh handling code. Following patches will make further changes.
This patch has the side effect of killing OOM triggered by allocation
path and fixing DMA transfers. Previously, bug in alloc path
triggered OOM on command issue and commands were passed to DMA engine
without DMA-mapping all the segments.
Signed-off-by: Tejun Heo <tj@kernel.org>
Tejun Heo [Sat, 18 Apr 2009 23:46:02 +0000 (08:46 +0900)]
ide-atapi,tape,floppy: allow ->pc_callback() to change rq->data_len
Impact: allow residual count implementation in ->pc_callback()
rq->data_len has two duties - carrying the number of input bytes on
issue and carrying residual count back to the issuer on completion.
ide-atapi completion callback ->pc_callback() is the right place to do
this but currently ide-atapi depends on rq->data_len carrying the
original request size after calling ->pc_callback() to complete the pc
request.
This patch makes ide_pc_intr(), ide_tape_issue_pc() and
ide_floppy_issue_pc() cache length to complete before calling
->pc_callback() so that it can modify rq->data_len as necessary.
Note: As using rq->data_len for two purposes can make cases like this
incorrect in subtle ways, future changes will introduce separate
field for residual count.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jens Axboe <jens.axboe@oracle.com>
Tejun Heo [Sat, 18 Apr 2009 23:46:02 +0000 (08:46 +0900)]
ide-tape,floppy: fix failed command completion after request sense
Impact: fix infinite retry loop
After a command failed, ide-tape and floppy inserts REQUEST_SENSE in
front of the failed command and according to the result, sets
pc->retries, flags and errors. After REQUEST_SENSE is complete, the
failed command is again at the front of the queue and if the verdict
was to terminate the request, the issue functions tries to complete it
directly by calling drive->pc_callback() and returning ide_stopped.
However, drive->pc_callback() doesn't complete a request. It only
prepares for completion of the request. As a result, this creates an
infinite loop where the failed request is retried perpetually.
Fix it by actually ending the request by calling ide_complete_rq().
Signed-off-by: Tejun Heo <tj@kernel.org>
Tejun Heo [Sat, 18 Apr 2009 22:00:43 +0000 (07:00 +0900)]
ide-pm: don't abuse rq->data
Impact: cleanup rq->data usage
ide-pm uses rq->data to carry pointer to struct request_pm_state
through request queue and rq->special is used to carray pointer to
local struct ide_cmd, which isn't necessary. Use rq->special for
request_pm_state instead and use local ide_cmd in
ide_start_power_step().
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Tejun Heo [Sat, 18 Apr 2009 22:00:42 +0000 (07:00 +0900)]
ide-cd,atapi: use bio for internal commands
Impact: unify request data buffer handling
rq->data is used mostly to pass kernel buffer through request queue
without using bio. There are only a couple of places which still do
this in kernel and converting to bio isn't difficult.
This patch converts ide-cd and atapi to use bio instead of rq->data
for request sense and internal pc commands. With previous change to
unify sense request handling, this is relatively easily achieved by
adding blk_rq_map_kern() during sense_rq prep and PC issue.
If blk_rq_map_kern() fails for sense, the error is deferred till sense
issue and aborts the failed command which triggered the sense. Note
that this is a slim possibility as sense prep is done on each command
issue, so for the above condition to actually trigger, all preps since
the last sense issue till the issue of the request which would require
a sense should fail.
* do_request functions might sleep now. This should be okay as ide
request_fn - do_ide_request() - is invoked only from make_request
and plug work. Make sure this is the case by adding might_sleep()
to do_ide_request().
* Functions which access the read sense data before the sense request
is complete now should access bio_data(sense_rq->bio) as the sense
buffer might have been copied during blk_rq_map_kern().
* ide-tape updated to map sg.
* cdrom_do_block_pc() now doesn't have to deal with REQ_TYPE_ATA_PC
special case. Simplified.
* tp_ops->output/input_data path dropped from ide_pc_intr().
Signed-off-by: Tejun Heo <tj@kernel.org>
Borislav Petkov [Sat, 18 Apr 2009 22:00:42 +0000 (07:00 +0900)]
ide-atapi: convert ide-{floppy,tape} to using preallocated sense buffer
Since we're issuing REQ_TYPE_SENSE now we need to allow those types of
rqs in the ->do_request callbacks. As a future improvement, sense_len
assignment might be unified across all ATAPI devices. Borislav to
check with specs and test.
As a result, get rid of ide_queue_pc_head() and
drive->request_sense_rq.
tj: * Init request sense ide_atapi_pc from sense request. In the
longer timer, it would probably better to fold
ide_create_request_sense_cmd() into its only current user -
ide_floppy_get_format_progress().
* ide_retry_pc() no longer takes @disk.
CC: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
CC: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Borislav Petkov [Sat, 18 Apr 2009 22:00:42 +0000 (07:00 +0900)]
ide-cd: convert to using generic sense request
Preallocate a sense request in the ->do_request method and reinitialize
it only on demand, in case it's been consumed in the IRQ handler path.
The reason for this is that we don't want to be mapping rq to bio in
the IRQ path and introduce all kinds of unnecessary hacks to the block
layer.
tj: * Both user and kernel PC requests expect sense data to be stored
in separate storage other than drive->sense_data. Copy sense
data to rq->sense on completion if rq->sense is not NULL. This
fixes bogus sense data on PC requests.
As a result, remove cdrom_queue_request_sense.
CC: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
CC: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Borislav Petkov [Sat, 18 Apr 2009 22:00:42 +0000 (07:00 +0900)]
ide: add helpers for preparing sense requests
This is in preparation of removing the queueing of a sense request out
of the IRQ handler path.
Use struct request_sense as a general sense buffer for all ATAPI
devices ide-{floppy,tape,cd}.
tj: * blk_get_request(__GFP_WAIT) can't be called from do_request() as
it can cause deadlock. Converted to use inline struct request
and blk_rq_init().
* Added xfer / cdb len selection depending on device type.
* All sense prep logics folded into ide_prep_sense() which never
fails.
* hwif->rq clearing and sense_rq used handling moved into
ide_queue_sense_rq().
* blk_rq_map_kern() conversion is moved to later patch.
CC: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
CC: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Tejun Heo [Sat, 18 Apr 2009 22:00:42 +0000 (07:00 +0900)]
ide-cd: don't abuse rq->buffer
Impact: rq->buffer usage cleanup
ide-cd uses rq->buffer to carry pointer to the original request when
issuing REQUEST_SENSE. Use rq->special instead.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Tejun Heo [Sat, 18 Apr 2009 22:00:42 +0000 (07:00 +0900)]
ide-atapi: don't abuse rq->buffer
Impact: rq->buffer usage cleanup
ide-atapi uses rq->buffer as private opaque value for internal special
requests. rq->special isn't used for these cases (the only case where
rq->special is used is for ide-tape rw requests). Use rq->special
instead.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Tejun Heo [Sat, 18 Apr 2009 22:00:42 +0000 (07:00 +0900)]
ide-taskfile: don't abuse rq->buffer
Impact: rq->buffer usage cleanup
ide_raw_taskfile() directly uses rq->buffer to carry pointer to the
data buffer. This complicates both block interface and ide backend
request handling. Use blk_rq_map_kern() instead and drop special
handling for REQ_TYPE_ATA_TASKFILE from ide_map_sg().
Note that REQ_RW setting is moved upwards as blk_rq_map_kern() uses it
to initialize bio rw flag.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Tejun Heo [Sat, 18 Apr 2009 22:00:42 +0000 (07:00 +0900)]
ide-floppy: block pc always uses bio
Impact: remove unnecessary code path
Block pc requests always use bio and rq->data is always NULL. No need
to worry about !rq->bio cases in idefloppy_block_pc_cmd(). Note that
ide-atapi uses ide_pio_bytes() for bio PIO transfer which handle sg
fine.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Tejun Heo [Sat, 18 Apr 2009 22:00:41 +0000 (07:00 +0900)]
ide-cd: clear sense buffer before issuing request sense
Impact: code simplification
ide_cd_request_sense_fixup() clears the tail of the sense buffer if
the device didn't completely fill it. This patch makes
cdrom_queue_request_sense() clear the sense buffer before issuing the
command instead of clearing it afterwards. This simplifies code and
eases future changes.
Signed-off-by: Tejun Heo <tj@kernel.org>
Tejun Heo [Sat, 18 Apr 2009 22:00:41 +0000 (07:00 +0900)]
ide kill unused ide_cmd->special
Impact: removal of unused field
No one uses ide_cmd->special anymore. Kill it.
Signed-off-by: Tejun Heo <tj@kernel.org>
Tejun Heo [Sat, 18 Apr 2009 22:00:41 +0000 (07:00 +0900)]
ide: don't set REQ_SOFTBARRIER
ide doesn't have to worry about REQ_SOFTBARRIER. Don't set it.
Signed-off-by: Tejun Heo <tj@kernel.org>
Tejun Heo [Sat, 18 Apr 2009 22:00:41 +0000 (07:00 +0900)]
ide: use blk_run_queue() instead of blk_start_queueing()
blk_start_queueing() is being phased out in favor of
[__]blk_run_queue(). Switch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Tejun Heo [Sat, 18 Apr 2009 22:00:41 +0000 (07:00 +0900)]
ide-tape: remove back-to-back REQUEST_SENSE detection
Impact: fix an oops which always triggers
ide_tape_issue_pc() assumed drive->pc isn't NULL on invocation when
checking for back-to-back request sense issues but drive->pc can be
NULL and even when it's not NULL, it's not safe to dereference it once
the previous command is complete because pc could have been freed or
was on stack. Kill back-to-back REQUEST_SENSE detection.
Signed-off-by: Tejun Heo <tj@kernel.org>
Tejun Heo [Sat, 18 Apr 2009 22:00:41 +0000 (07:00 +0900)]
block: clear req->errors on bio completion only for fs requests
Impact: subtle behavior change
For fs requests, rq is only carrier of bios and rq error status as a
whole doesn't mean much. This is the reason why rq->errors is being
cleared on each partial completion of a request as on each partial
completion the error status is transferred to the respective bios.
For pc requests, rq->errors is used to carry error status to the
issuer and thus __end_that_request_first() doesn't clear it on such
cases.
The condition was fine till now as only fs and pc requests have used
bio and thus the bio completion path. However, future changes will
unify data accesses to bio and all non fs users care about rq error
status. Clear rq->errors on bio completion only for fs requests.
In general, the implicit clearing is a bit too subtle especially as
the meaning of rq->errors is completely dependent on low level
drivers. Unifying / cleaning up rq->errors usage and letting llds
manage it would be better. TODO comment added.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Jens Axboe <axboe@kernel.dk>
Akinobu Mita [Fri, 17 Apr 2009 06:41:21 +0000 (08:41 +0200)]
loop: use BIO list management functions
Now that the bio list management stuff is generic, convert loop to use
bio lists instead of its own private bio list implementation.
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Tejun Heo [Tue, 28 Apr 2009 03:38:33 +0000 (12:38 +0900)]
hd: fix locking
hd dance around local irq and HD_IRQ enable without achieving much.
It ends up transferring data from irq handler with both local irq and
HD_IRQ disabled. The only place it actually does something is while
transferring the first block of a request which it does with HD_IRQ
disabled but local irq enabled.
Unfortunately, the dancing is horribly broken from locking POV. IRQ
and timeout handlers access block queue without grabbing the queue
lock and running the driver in SMP configuration crashes the whole
machine pretty quickly.
Remove meaningless irq enable/disable dancing and add proper locking
in issue, irq and timeout paths.
Signed-off-by: Tejun Heo <tj@kernel.org>
Bartlomiej Zolnierkiewicz [Tue, 28 Apr 2009 03:38:33 +0000 (12:38 +0900)]
mg_disk: fix CONFIG_LBD=y warning
drivers/block/mg_disk.c: In function ‘mg_dump_status’:
drivers/block/mg_disk.c:265: warning: format ‘%ld’ expects type ‘long int’, but
argument 2 has type ‘sector_t’
[ Impact: kill build warning ]
Cc: unsik Kim <donari75@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Tejun Heo [Tue, 28 Apr 2009 03:38:32 +0000 (12:38 +0900)]
mg_disk: fix locking
IRQ and timeout handlers call functions which expect locked queue lock
without locking it. Fix it.
While at it, convert 0s used as null pointer constant to NULLs.
[ Impact: fix locking, cleanup ]
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: unsik Kim <donari75@gmail.com>
Tim Abbott [Sun, 26 Apr 2009 02:11:08 +0000 (22:11 -0400)]
sparc: convert to use __HEAD and HEAD_TEXT macros.
This has the consequence of changing the section name use for head
code from ".text.head" to ".head.text". Since this commit changes all
users in the architecture, this change should be harmless.
Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: David S. Miller <davem@davemloft.net>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tim Abbott [Sun, 26 Apr 2009 02:11:07 +0000 (22:11 -0400)]
sh: convert to use __HEAD and HEAD_TEXT macros.
This has the consequence of changing the section name use for head
code from ".text.head" to ".head.text". Since this commit changes all
users in the architecture, this change should be harmless.
Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Paul Mundt <lethal@linux-sh.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tim Abbott [Sun, 26 Apr 2009 02:11:06 +0000 (22:11 -0400)]
s390: convert to use __HEAD and HEAD_TEXT macros.
This has the consequence of changing the section name use for head
code from ".text.head" to ".head.text". Since this commit changes all
users in the architecture, this change should be harmless.
Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tim Abbott [Sun, 26 Apr 2009 02:11:05 +0000 (22:11 -0400)]
powerpc: convert to use __HEAD and HEAD_TEXT macros.
This has the consequence of changing the section name use for head
code from ".text.head" to ".head.text". Since this commit changes all
users in the architecture, this change should be harmless.
Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tim Abbott [Sun, 26 Apr 2009 02:11:04 +0000 (22:11 -0400)]
mn10300: convert to use __HEAD and HEAD_TEXT macros.
This has the consequence of changing the section name use for head
code from ".text.head" to ".head.text". Since this commit changes all
users in the architecture, this change should be harmless.
Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: David Howells <dhowells@redhat.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tim Abbott [Sun, 26 Apr 2009 02:11:03 +0000 (22:11 -0400)]
m68k: convert to use __HEAD and HEAD_TEXT macros.
This has the consequence of changing the section name use for head
code from ".text.head" to ".head.text". Since this commit changes all
users in the architecture, this change should be harmless.
Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tim Abbott [Sun, 26 Apr 2009 02:11:02 +0000 (22:11 -0400)]
m32r: convert to use __HEAD and HEAD_TEXT macros.
This has the consequence of changing the section name use for head
code from ".text.head" to ".head.text". Since this commit changes all
users in the architecture, this change should be harmless.
Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tim Abbott [Sun, 26 Apr 2009 02:10:59 +0000 (22:10 -0400)]
frv: convert frv to use __HEAD and HEAD_TEXT macros.
This has the consequence of changing the section name use for head
code from ".text.head" to ".head.text". Since this commit changes all
users in the architecture, this change should be harmless.
Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: David Howells <dhowells@redhat.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tim Abbott [Sun, 26 Apr 2009 02:10:58 +0000 (22:10 -0400)]
alpha: convert to use __HEAD and HEAD_TEXT macros.
This has the consequence of changing the section name use for head
code from ".text.head" to ".head.text". Since this commit changes all
users in the architecture, this change should be harmless.
Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Richard Henderson <rth@twiddle.net>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tim Abbott [Sun, 26 Apr 2009 02:10:57 +0000 (22:10 -0400)]
xtensa: convert to use __HEAD and HEAD_TEXT macros.
Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Chris Zankel <chris@zankel.net>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tim Abbott [Sun, 26 Apr 2009 02:10:56 +0000 (22:10 -0400)]
Add new HEAD_TEXT_SECTION macro.
This patch is preparation for replacing all uses of ".head.text" or
".text.head" in the kernel with macros, so that the section name can
later be changed without having to touch a lot of the kernel.
Since some linker scripts do more complex things than referencing
HEAD_TEXT, we add a HEAD_TEXT_SECTION macro that just contains the
actual name.
I've defined HEAD_TEXT_SECTION in a new header,
include/linux/section-names.h, so that this section name only needs to
appear in one place. I anticipate creating similar macro structures
for a number of other section names.
The long-term goal here is to be able to change the kernel's magic
section names to those that are compatible with -ffunction-sections
-fdata-sections. This requires renaming all magic sections with names
of the form ".text.foo".
Signed-off-by: Tim Abbott <tabbott@mit.edu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Rafael J. Wysocki [Fri, 24 Apr 2009 22:16:06 +0000 (00:16 +0200)]
PM/Hibernate: Fix waiting for image device to appear on resume
Commit
c751085943362143f84346d274e0011419c84202 ("PM/Hibernate: Wait for
SCSI devices scan to complete during resume") added a call to
scsi_complete_async_scans() to software_resume(), so that it waited for
the SCSI scanning to complete, but the call was added at a wrong place.
Namely, it should have been added after wait_for_device_probe(), which
is called only if the image partition hasn't been specified yet. Also,
it's reasonable to check if the image partition is present and only wait
for the device probing and SCSI scanning to complete if it is not the
case.
Additionally, since noresume is checked right at the beginning of
software_resume() and the function returns immediately if it's set, it
doesn't make sense to check it once again later.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Thu, 23 Apr 2009 15:41:18 +0000 (16:41 +0100)]
ROMFS: Advance destination buffer pointer when reading from a blockdev
RomFS should advance the destination buffer pointer when reading data from a
blockdev source (the data may be split over multiple blocks, each requiring its
own sb_read() call). Without this, all the data is copied to the beginning of
the output buffer.
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Thu, 23 Apr 2009 15:41:13 +0000 (16:41 +0100)]
ROMFS: romfs_lookup() shouldn't be doing a partial name comparison
romfs_lookup() should be using a routine akin to strcmp() on the backing store,
rather than one akin to strncmp(). If it uses the latter, it's liable to match
/bin/shutdown when looking up /bin/sh.
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fred Isaman [Thu, 23 Apr 2009 13:40:32 +0000 (16:40 +0300)]
lib: find_last_bit.o needed by a module only, move it from lib to obj
Currently, although find_last_bit is EXPORTed, it is statically linked
with the kernel and is referenced only under CONFIG_SMP.
When CONFIG_SMP is undefined and find_last_bit is referenced only by
modules, linking fails with:
ERROR: "find_last_bit" [fs/nfs/nfs.ko] undefined!
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Marc Dionne [Thu, 23 Apr 2009 10:21:55 +0000 (11:21 +0100)]
CacheFiles: Fix the documentation to use the correct credential pointer names
Adjust the CacheFiles documentation to use the correct names of the credential
pointers in task_struct.
The documentation was using names from the old versions of the credentials
patches.
Signed-off-by: Marc Dionne <marc.c.dionne@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Christian Borntraeger [Thu, 23 Apr 2009 07:12:59 +0000 (16:42 +0930)]
virtio-rng: Remove false BUG for spurious callbacks
The virtio-rng drivers checks for spurious callbacks. Since
callbacks can be implemented via shared interrupts (e.g. PCI) this
could lead to guest kernel oopses with lots of virtio devices.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 24 Apr 2009 15:54:30 +0000 (08:54 -0700)]
Merge branch 'fixes-for-linus' of git://git.monstr.eu/linux-2.6-microblaze
* 'fixes-for-linus' of git://git.monstr.eu/linux-2.6-microblaze:
microblaze: add parameter to microblaze_read()
microblaze: Use CFLAGS_KERNEL instead of CFLAGS
microblaze: Add STATE_SAVE_ARG_SPACE for noMMU kernel too
microblaze: Do not check use_dcache
microblaze: Do not use PVR configuration for broken MB version
microblaze: Fix USR1/2 pvr printing message
microblaze: iowrite upon timeout
microblaze: Correspond CONFIG...PCMP in Makefile/Kconfig
microblaze: Remove redundant variable
microblaze: Move start_thread to process.c
microblaze: Add missing preadv and pwritev syscalls
microblaze: Add missing declaration for die and _exception func
microblaze: Remove sparse error in traps.c
microblaze: Move task_pt_regs up
microblaze: Rename kernel_mode to pt_mode in pt_regs
microblaze: Remove uncache shadow condition
microblaze: Remove while(1) loop from show_regs function
microblaze: Remove unneded per cpu SYSCALL_SAVE variable
Linus Torvalds [Fri, 24 Apr 2009 15:48:17 +0000 (08:48 -0700)]
Merge branch 'release' of git://git./linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (34 commits)
ACPI, i915: Register ACPI video even when not modesetting
Revert "ACPICA: delete check for AML access to port 0x81-83"
I/O port protection: update for windows compatibility.
sony-laptop: always try to unblock rfkill on load
sony-laptop: fix bogus error message display on resume
ACPI: EC: Fix ACPI EC resume non-query interrupt message
sony-laptop: SNC input event 38 fix
sony-laptop: SNC 127 Initialization Fix
sony-laptop: Duplicate SNC 127 Event Fix
ACPI: prevent processor.max_cstate=0 boot crash
ACPI/hpet: prevent boot hang when hpet=force used on ICH-4M
ACPI: delete obsolete "bus master activity" proc field
ACPI: idle: mark_tsc_unstable() at init-time, not run-time
ACPI: add /sys/firmware/acpi/interrupts/sci_not counter
ACPI video: fix an error when the brightness levels on AC and on Battery are same
acpi-cpufreq: Do not let get_measured perf depend on internal variable
acpi-cpufreq: style-only: add parens to math expression
acpi-cpufreq: Cleanup: Use printk_once
x86, acpi_cpufreq: Fix the NULL pointer dereference in get_measured_perf
thinkpad-acpi: bump up version to 0.23
...
Linus Torvalds [Fri, 24 Apr 2009 15:45:53 +0000 (08:45 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/gerg/m68knommu
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68knommu: update the default config for the ColdFire 5407C3 board
m68knommu: update the default config for the ColdFire 5307C3 board
m68knommu: update the default config for the ColdFire 5257EVB board
m68knommu: update the default config for the ColdFire 5249EVB.
m68knommu: add a defconfig for the ColdFire M5272C3 board
m68knommu: update the defconfig for the ColdFire 5208evb board
m68knommu: fix DMA support for ColdFire
m68knommu: remove unused kernel stats offsets
m68knommu: fix missing .data.cacheline_aligned section
m68knommu: Fixed GPIO pin initialization for CONFIG_M5271 FEC.
Linus Torvalds [Fri, 24 Apr 2009 15:37:40 +0000 (08:37 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/tytso/ext4
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: Fix potential inode allocation soft lockup in Orlov allocator
ext4: Make the extent validity check more paranoid
jbd: use SWRITE_SYNC_PLUG when writing synchronous revoke records
jbd2: use SWRITE_SYNC_PLUG when writing synchronous revoke records
ext4: really print the find_group_flex fallback warning only once
Linus Torvalds [Fri, 24 Apr 2009 15:36:41 +0000 (08:36 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 5460/1: Orion: reduce namespace pollution
[ARM] 5458/1: pcmcia: pxa2xx-sharpsl: check if we do have Scoop config
[ARM] 5457/1: mach-imx gpio buildfix
[ARM] 5456/1: add sys_preadv and sys_pwritev
[ARM] pxa/pcm990: start external GPIOs immediately after built-in ones
[ARM] pxa/palm27x: General fix for Palm27x aSoC driver
[ARM] pxa/mioa701: use GPIO95 as AC97 reset line
[ARM] pxa: merge AC97 platform data structures
[ARM] pxa/magician: remove un-necessary #include of pxa-regs.h and hardware.h
Linus Torvalds [Fri, 24 Apr 2009 15:36:06 +0000 (08:36 -0700)]
Merge git://git./linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
USB: pwc : do not pass stack allocated buffers to USB core.
USB: otg: Fix bug on remove path without transceiver
USB: correct error handling in cdc-wdm
USB: removal of tty->low_latency hack dating back to the old serial code
USB: serial: sierra driver bug fix for composite interface
USB: gadget: omap_udc uses platform_driver_probe()
USB: ci13xxx_udc: fix build error
USB: musb: Prevent multiple includes of musb.h
USB: pass mem_flags to dma_alloc_coherent
USB: g_file_storage: fix use-after-free bug when closing files
USB: ehci-sched.c: EHCI SITD scheduling bugfix
USB: fix mos7840 problem with minor numbers
USB: mos7840: add new device id
USB: musb: fix build when !CONFIG_PM
USB: musb: Remove my email address from few musb related drivers
USB: Gadget: MIPS CI13xxx UDC bugfixes
USB: Unusual Device support for Gold MP3 Player Energy
USB: serial: fix lifetime and locking problems
Linus Torvalds [Fri, 24 Apr 2009 15:32:44 +0000 (08:32 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ecryptfs/ecryptfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6:
eCryptfs: Larger buffer for encrypted symlink targets
eCryptfs: Lock lower directory inode mutex during lookup
eCryptfs: Remove ecryptfs_unlink_sigs warnings
eCryptfs: Fix data corruption when using ecryptfs_passthrough
eCryptfs: Print FNEK sig properly in /proc/mounts
eCryptfs: NULL pointer dereference in ecryptfs_send_miscdev()
eCryptfs: Copy lower inode attrs before dentry instantiation
Linus Torvalds [Fri, 24 Apr 2009 15:32:23 +0000 (08:32 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/geert/linux-m68k
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k: Update defconfigs for 2.6.30-rc3
m68k,m68knommu: Wire up preadv and pwritev
scsi: a4000 - Correct driver unregistration in case of failure
Linus Torvalds [Fri, 24 Apr 2009 15:28:27 +0000 (08:28 -0700)]
Merge branch 'for-linus' of git://git390.marist.edu/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
[S390] update default configuration.
[S390] omit frame pointers on s390 when possible
[S390] Use tape_generic_offline directly.
[S390] /proc/stat idle field for idle cpus
[S390] appldata: avoid deadlock with appldata_mem
[S390] ipl: fix compile breakage
Linus Torvalds [Fri, 24 Apr 2009 15:27:02 +0000 (08:27 -0700)]
Merge git://git./linux/kernel/git/steve/gfs2-2.6-fixes
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes:
GFS2: Ensure that the inode goal block settings are updated
GFS2: Fix bug in block allocation
bitops: Add __ffs64 bitop
Linus Torvalds [Fri, 24 Apr 2009 15:26:01 +0000 (08:26 -0700)]
Merge branch 'kvm-updates/2.6.30' of git://git./virt/kvm/kvm
* 'kvm-updates/2.6.30' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: Unregister cpufreq notifier on unload
KVM: x86: release time_page on vcpu destruction
KVM: Fix overlapping check for memory slots
KVM: MMU: disable global page optimization
KVM: ia64: fix locking order entering guest
KVM: MMU: Fix off-by-one calculating large page count
Linus Torvalds [Fri, 24 Apr 2009 15:16:05 +0000 (08:16 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/bart/ide-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6:
MAINTAINERS: update IDE entry
palm_bk3710: palm_bk3710_udmatimings[] CodingStyle fixup
palm_bk3710: those registers/bitfields don't exist
mediabay: fix build for CONFIG_BLOCK=n
ide: Stop disks on reboot for laptop which cuts power
ide-cd: fix kernel crash on hppa regression
palm_bk3710: UDMA performance fix
Linus Torvalds [Fri, 24 Apr 2009 15:15:25 +0000 (08:15 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: hda - Add quirk for Packard Bell RS65
[ALSA] intel8x0: another attempt to fix ac97_clock measure routine
[ALSA] ac97_codec: increase timeout for analog subsections
ALSA: hda - Add quirks for Realtek codecs
ALSA: hda - Fix alc662_init_verbs
ALSA: keywest: Convert to new-style i2c driver
ALSA: AOA: Convert onyx and tas codecs to new-style i2c drivers
ALSA: Atiixp: Add SSID for mute_led quirk (unknown HP model)
ALSA: us122l: add snd_us122l_free()
ASoC: Fix warning in wm9705
ASoC: OMAP: Update contact addresses
ASoC: pxa-ssp: Don't use SSCR0_SerClkDiv and SSCR0_SCR
ALSA: us122l: Fix signedness in comparisions
Alan Cox [Wed, 22 Apr 2009 14:03:15 +0000 (15:03 +0100)]
radio_si470x: Fix free memory corruption
The release path for a disconnected device frees the object then unlocks
the mutex in the freed object...
Found by Dan Carpenter using Smatch
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Niels de Vos [Wed, 22 Apr 2009 14:02:44 +0000 (15:02 +0100)]
serial: remove contact data
Remove my name and emailaddress from note in the source. Wincor Nixdorf
only has some ITE-chips on their mainboards, other chips are not
available for me for testing.
Signed-off-by: Niels de Vos <niels.devos@wincor-nixdorf.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alan Cox [Wed, 22 Apr 2009 14:02:23 +0000 (15:02 +0100)]
cafe_nand: Fix warning
Wrong types on IRQ handler
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 24 Apr 2009 14:48:24 +0000 (07:48 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
cfq-iosched: cache prio_tree root in cfqq->p_root
cfq-iosched: fix bug with aliased request and cooperation detection
cfq-iosched: clear ->prio_trees[] on cfqd alloc
block: fix intermittent dm timeout based oops
umem: fix request_queue lock warning
block: simplify I/O stat accounting
pktcdvd.h should include mempool.h
cfq-iosched: use the default seek distance when there aren't enough seek samples
cfq-iosched: make seek_mean converge more quickly
block: make blk_abort_queue() ignore non-request based devices
block: include empty disks in /proc/diskstats
bio: use bio_kmalloc() in copy/map functions
bio: fix bio_kmalloc()
block: fix queue bounce limit setting
block: fix SG_IO vector request data length handling
scatterlist: make sure sg_miter_next() doesn't return 0 sized mappings
David Howells [Wed, 22 Apr 2009 11:10:07 +0000 (12:10 +0100)]
MN10300: Update the ASB2303 defconfig
Update the defconfig for the ASB2303 evaluation board.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jonathan Corbet [Wed, 22 Apr 2009 11:01:49 +0000 (12:01 +0100)]
Delete slow-work timers properly
Slow-work appears to delete its timer as soon as the first user
unregisters, even though other users could be active. At the same time, it
never seems to delete slow_work_oom_timer. Arrange for both to happen in
the shutdown path.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 24 Apr 2009 14:46:51 +0000 (07:46 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (94 commits)
netfilter: ctnetlink: fix gcc warning during compilation
net/netrom: Fix socket locking
netlabel: Always remove the correct address selector
ucc_geth.c: Fix upsmr setting in RMII mode
8139too: fix HW initial flow
af_iucv: Fix race when queuing incoming iucv messages
af_iucv: Test additional sk states in iucv_sock_shutdown
af_iucv: Reject incoming msgs if RECV_SHUTDOWN is set
af_iucv: fix oops in iucv_sock_recvmsg() for MSG_PEEK flag
af_iucv: consider state IUCV_CLOSING when closing a socket
iwlwifi: DMA fixes
iwlwifi: add debugging for TX path
mwl8: fix build warning.
mac80211: fix alignment calculation bug
mac80211: do not print WARN if config interface
iwl3945: use cancel_delayed_work_sync to cancel rfkill_poll
iwlwifi: fix EEPROM validation mask to include OTP only devices
atmel: fix netdev ops conversion
pcnet_cs: add cis(firmware) of the Allied Telesis LA-PCM
mlx4_en: Fix cleanup if workqueue create in mlx4_en_add() fails
...
Linus Torvalds [Fri, 24 Apr 2009 14:45:52 +0000 (07:45 -0700)]
Merge git://git./linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc: Fix bus type probing for ESP and LE devices.
sparc32: Update defconfig.
sparc64: Update defconfig.
Linus Torvalds [Fri, 24 Apr 2009 14:44:58 +0000 (07:44 -0700)]
Merge branch 'merge' of git://git./linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
powerpc: Fix modular build of ide-pmac when mediabay is built in
powerpc/pasemi: Fix build error on UP
powerpc: Make macintosh/mediabay driver depend on CONFIG_BLOCK
maintainers: Fix PS3 patterns
powerpc/ps3: Fix CONFIG_PS3_FLASH=n build warning
powerpc/32: Don't clobber personality flags on exec
powerpc: Fix crash on CPU hotplug
powerpc/85xx: Remove defconfigs that mpc85xx_{smp_}defconfig cover
powerpc/85xx: Added SMP defconfig
powerpc/85xx: Enabled a bunch of FSL specific drivers/options
powerpc/85xx: Updated generic mpc85xx_defconfig
powerpc: don't disable SATA interrupts on Freescale MPC8610 HPCD
fsl_rio: Pass the proper device to dma mapping routines
powerpc: Fix of_node_put() exit path in of_irq_map_one()
powerpc/5200: defconfig updates
powerpc/5200: Add FLASH nodes to lite5200 device tree
powerpc/device-tree: Document MTD nodes with multiple "reg" tuples
powerpc/of-device-tree: Factor MTD physmap bindings out of booting-without-of
powerpc/5200: Bring the legacy fsl_spi_platform_data hooks back
Len Brown [Fri, 24 Apr 2009 14:42:29 +0000 (10:42 -0400)]
Merge branch 'bjorn.button' into release
Len Brown [Fri, 24 Apr 2009 14:42:21 +0000 (10:42 -0400)]
Merge branch 'bugzilla-13036' into release
Len Brown [Fri, 24 Apr 2009 14:42:11 +0000 (10:42 -0400)]
Merge branch 'bugzilla-13048' into release
Len Brown [Fri, 24 Apr 2009 14:42:03 +0000 (10:42 -0400)]
Merge branch 'bugzilla-13142' into release
Len Brown [Fri, 24 Apr 2009 14:41:31 +0000 (10:41 -0400)]
Merge branch 'hpet' into release
Oleg Nesterov [Thu, 23 Apr 2009 23:02:45 +0000 (01:02 +0200)]
check_unsafe_exec: s/lock_task_sighand/rcu_read_lock/
write_lock(¤t->fs->lock) guarantees we can't wrongly miss
LSM_UNSAFE_SHARE, this is what we care about. Use rcu_read_lock()
instead of ->siglock to iterate over the sub-threads. We must see
all CLONE_THREAD|CLONE_FS threads which didn't pass exit_fs(), it
takes fs->lock too.
With or without this patch we can miss the freshly cloned thread
and set LSM_UNSAFE_SHARE, we don't care.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Roland McGrath <roland@redhat.com>
[ Fixed lock/unlock typo - Hugh ]
Acked-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Oleg Nesterov [Thu, 23 Apr 2009 23:01:56 +0000 (01:01 +0200)]
do_execve() must not clear fs->in_exec if it was set by another thread
If do_execve() fails after check_unsafe_exec(), it clears fs->in_exec
unconditionally. This is wrong if we race with our sub-thread which
also does do_execve:
Two threads T1 and T2 and another process P, all share the same
->fs.
T1 starts do_execve(BAD_FILE). It calls check_unsafe_exec(), since
->fs is shared, we set LSM_UNSAFE but not ->in_exec.
P exits and decrements fs->users.
T2 starts do_execve(), calls check_unsafe_exec(), now ->fs is not
shared, we set fs->in_exec.
T1 continues, open_exec(BAD_FILE) fails, we clear ->in_exec and
return to the user-space.
T1 does clone(CLONE_FS /* without CLONE_THREAD */).
T2 continues without LSM_UNSAFE_SHARE while ->fs is shared with
another process.
Change check_unsafe_exec() to return res = 1 if we set ->in_exec, and change
do_execve() to clear ->in_exec depending on res.
When do_execve() suceeds, it is safe to clear ->in_exec unconditionally.
It can be set only if we don't share ->fs with another process, and since
we already killed all sub-threads either ->in_exec == 0 or we are the
only user of this ->fs.
Also, we do not need fs->lock to clear fs->in_exec.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Roland McGrath <roland@redhat.com>
Acked-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jens Axboe [Thu, 23 Apr 2009 10:19:38 +0000 (12:19 +0200)]
cfq-iosched: cache prio_tree root in cfqq->p_root
Currently we look it up from ->ioprio, but ->ioprio can change if
either the process gets its IO priority changed explicitly, or if
cfq decides to temporarily boost it. So if we are unlucky, we can
end up attempting to remove a node from a different rbtree root than
where it was added.
Fix this by using ->org_ioprio as the prio_tree index, since that
will only change for explicit IO priority settings (not for a boost).
Additionally cache the rbtree root inside the cfqq, then we don't have
to add code to reinsert the cfqq in the prio_tree if IO priority changes.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Jens Axboe [Thu, 23 Apr 2009 10:14:56 +0000 (12:14 +0200)]
cfq-iosched: fix bug with aliased request and cooperation detection
cfq_prio_tree_lookup() should return the direct match, yet it always
returns zero. Fix that.
cfq_prio_tree_add() assumes that we don't get a direct match, while
it is very possible that we do. Using O_DIRECT, you can have different
cfqq with matching requests, since you don't have the page cache
to serialize things for you. Fix this bug by only adding the cfqq if
there isn't an existing match.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Jens Axboe [Thu, 23 Apr 2009 10:13:27 +0000 (12:13 +0200)]
cfq-iosched: clear ->prio_trees[] on cfqd alloc
Not strictly needed, but we should make it clear that we init the
rbtree roots here.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Hannes Reinecke [Thu, 23 Apr 2009 08:32:59 +0000 (10:32 +0200)]
block: fix intermittent dm timeout based oops
Very rarely under stress testing of dm, oopses are occuring as
something tampers with an old stack frame. This has been traced back
to blk_abort_queue() leaving a timeout_list pointing to the stack.
The reason is that sometimes blk_abort_request() won't delete the
timer (if the request is marked as complete but before the timer has
been removed, a small race window). Fix this by splicing back from
the ususally empty list to the q->timeout_list.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Sage Weil [Thu, 23 Apr 2009 06:37:58 +0000 (08:37 +0200)]
umem: fix request_queue lock warning
The umem driver issues two warnings on boot, due to blk_plug_device() and
blk_remove_plug() being called without q->queue_lock held. Starting with
e48ec690 (block: extend queue_flag bitops), the queue_flag_* functions
warn if q->queue_lock doesn't appear to be locked. In fact, q->queue_lock
is NULL (though that apparently isn't otherwise a problem as the driver is
using card->lock for everything).
Although blk_init_queue() with take a request_fn_proc and spinlock_t*,
there isn't a corresponding init helper that takes a make_request_fn.
Setting queue_lock to &card->lock explicitly seems to work fine for me.
The warning goes away and the device appears to behave.
[ 1.531881] v2.3 : Micro Memory(tm) PCI memory board block driver
[ 1.538136] umem 0000:02:01.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20
[ 1.545018] umem 0000:02:01.0: Micro Memory(tm) controller found (PCI Mem Module (Battery Backup))
[ 1.554176] umem 0000:02:01.0: CSR 0xfc9ffc00 -> 0xffffc200013d0c00 (0x100)
[ 1.561279] umem 0000:02:01.0: Size
1048576 KB, Battery 1 Disabled (FAILURE), Battery 2 Disabled (FAILURE)
[ 1.571114] umem 0000:02:01.0: Window size
16777216 bytes, IRQ 20
[ 1.577304] umem 0000:02:01.0: memory NOT initialized. Consider over-writing whole device.
[ 1.585989] umema:<4>------------[ cut here ]------------
[ 1.591775] WARNING: at include/linux/blkdev.h:492 blk_plug_device+0x6d/0x106()
[ 1.592025] Hardware name: H8SSL
[ 1.592025] Modules linked in:
[ 1.592025] Pid: 1, comm: swapper Not tainted 2.6.29 #8
[ 1.592025] Call Trace:
[ 1.592025] [<
ffffffff8023c994>] warn_slowpath+0xd3/0xf2
[ 1.592025] [<
ffffffff8025a5b5>] ? save_trace+0x3f/0x9b
[ 1.592025] [<
ffffffff8025a68b>] ? add_lock_to_list+0x7a/0xba
[ 1.592025] [<
ffffffff8025e609>] ? validate_chain+0xb3b/0xce8
[ 1.592025] [<
ffffffff80441556>] ? mm_make_request+0x27/0x59
[ 1.592025] [<
ffffffff80441556>] ? mm_make_request+0x27/0x59
[ 1.592025] [<
ffffffff8025ef04>] ? __lock_acquire+0x74e/0x7b9
[ 1.592025] [<
ffffffff8025a70e>] ? get_lock_stats+0x34/0x5e
[ 1.592025] [<
ffffffff8025a746>] ? put_lock_stats+0xe/0x27
[ 1.592025] [<
ffffffff80441556>] ? mm_make_request+0x27/0x59
[ 1.592025] [<
ffffffff803ad165>] blk_plug_device+0x6d/0x106
[ 1.592025] [<
ffffffff80441575>] mm_make_request+0x46/0x59
[ 1.592025] [<
ffffffff803ac2d9>] generic_make_request+0x335/0x3cf
[ 1.592025] [<
ffffffff8027fcc7>] ? mempool_alloc_slab+0x11/0x13
[ 1.592025] [<
ffffffff8027fdce>] ? mempool_alloc+0x45/0x101
[ 1.592025] [<
ffffffff8025a746>] ? put_lock_stats+0xe/0x27
[ 1.592025] [<
ffffffff803adda5>] submit_bio+0x10a/0x119
[ 1.592025] [<
ffffffff802c8d00>] submit_bh+0xe5/0x109
[ 1.592025] [<
ffffffff802cbf43>] block_read_full_page+0x2aa/0x2cb
[ 1.592025] [<
ffffffff802cf4c4>] ? blkdev_get_block+0x0/0x4c
[ 1.592025] [<
ffffffff805c90a8>] ? _spin_unlock_irq+0x36/0x51
[ 1.592025] [<
ffffffff80286836>] ? __lru_cache_add+0x92/0xb2
[ 1.592025] [<
ffffffff802cf008>] blkdev_readpage+0x13/0x15
[ 1.592025] [<
ffffffff8027de06>] read_cache_page_async+0x90/0x134
[ 1.592025] [<
ffffffff802ceff5>] ? blkdev_readpage+0x0/0x15
[ 1.592025] [<
ffffffff802f5f1c>] ? adfspart_check_ICS+0x0/0x16c
[ 1.592025] [<
ffffffff8027deb8>] read_cache_page+0xe/0x45
[ 1.592025] [<
ffffffff802f5170>] read_dev_sector+0x2e/0x93
[ 1.592025] [<
ffffffff802f5f44>] adfspart_check_ICS+0x28/0x16c
[ 1.592025] [<
ffffffff8025d427>] ? trace_hardirqs_on+0xd/0xf
[ 1.592025] [<
ffffffff802f5f1c>] ? adfspart_check_ICS+0x0/0x16c
[ 1.592025] [<
ffffffff802f59c5>] rescan_partitions+0x168/0x2fb
[ 1.592025] [<
ffffffff802ceae9>] __blkdev_get+0x259/0x336
[ 1.592025] [<
ffffffff803ca1e2>] ? kobject_put+0x47/0x4b
[ 1.592025] [<
ffffffff802cebd1>] blkdev_get+0xb/0xd
[ 1.592025] [<
ffffffff802f5773>] register_disk+0xc4/0x12b
[ 1.592025] [<
ffffffff803b2a7b>] add_disk+0xc3/0x12d
[ 1.592025] [<
ffffffff808a1d4a>] ? mm_init+0x0/0x1a5
[ 1.592025] [<
ffffffff808a1e73>] mm_init+0x129/0x1a5
[ 1.592025] [<
ffffffff808a1d4a>] ? mm_init+0x0/0x1a5
[ 1.592025] [<
ffffffff80209056>] _stext+0x56/0x130
[ 1.592025] [<
ffffffff80274932>] ? register_irq_proc+0xae/0xca
[ 1.592025] [<
ffffffff802f0000>] ? proc_pid_lookup+0xb4/0x18b
[ 1.592025] [<
ffffffff8087f975>] kernel_init+0x132/0x18b
[ 1.592025] [<
ffffffff8020d17a>] child_rip+0xa/0x20
[ 1.592025] [<
ffffffff8020cb40>] ? restore_args+0x0/0x30
[ 1.592025] [<
ffffffff8087f843>] ? kernel_init+0x0/0x18b
[ 1.592025] [<
ffffffff8020d170>] ? child_rip+0x0/0x20
[ 1.592025] ---[ end trace
7150b3b86da74e1e ]---
[ 1.889858] ------------[ cut here ]------------[ve_plug+0x5f/0x91()
[ 1.893848] Hardware name: H8SSL
[ 1.893848] Modules linked in:
[ 1.893848] Pid: 1, comm: swapper Tainted: G W 2.6.29 #8
[ 1.893848] Call Trace:
[ 1.893848] [<
ffffffff8023c994>] warn_slowpath+0xd3/0xf2
[ 1.893848] [<
ffffffff805c8411>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[ 1.893848] [<
ffffffff8020cb40>] ? restore_args+0x0/0x30
[ 1.893848] [<
ffffffff80254245>] ? __atomic_notifier_call_chain+0x0/0xb2
[ 1.893848] [<
ffffffff805c90a3>] ? _spin_unlock_irq+0x31/0x51
[ 1.893848] [<
ffffffff805c90bf>] ? _spin_unlock_irq+0x4d/0x51
[ 1.893848] [<
ffffffff8044157d>] ? mm_make_request+0x4e/0x59
[ 1.893848] [<
ffffffff8025a70e>] ? get_lock_stats+0x34/0x5e
[ 1.893848] [<
ffffffff8025a75d>] ? put_lock_stats+0x25/0x27
[ 1.893848] [<
ffffffff80441504>] ? mm_unplug_device+0x25/0x50
[ 1.893848] [<
ffffffff803acf23>] blk_remove_plug+0x5f/0x91
[ 1.893848] [<
ffffffff8044150f>] mm_unplug_device+0x30/0x50
[ 1.893848] [<
ffffffff803ab74a>] blk_unplug+0x78/0x7d
[ 1.893848] [<
ffffffff803ab75c>] blk_backing_dev_unplug+0xd/0xf
[ 1.893848] [<
ffffffff802c853c>] block_sync_page+0x4a/0x4c
[ 1.893848] [<
ffffffff8027da1c>] sync_page+0x44/0x4d
[ 1.893848] [<
ffffffff805c66fd>] __wait_on_bit_lock+0x42/0x8a
[ 1.893848] [<
ffffffff8027d9d8>] ? sync_page+0x0/0x4d
[ 1.893848] [<
ffffffff8027d9c4>] __lock_page+0x64/0x6b
[ 1.893848] [<
ffffffff802508db>] ? wake_bit_function+0x0/0x2a
[ 1.893848] [<
ffffffff8027de4a>] read_cache_page_async+0xd4/0x134
[ 1.893848] [<
ffffffff802ceff5>] ? blkdev_readpage+0x0/0x15
[ 1.893848] [<
ffffffff802f5f1c>] ? adfspart_check_ICS+0x0/0x16c
[ 1.893848] [<
ffffffff8027deb8>] read_cache_page+0xe/0x45
[ 1.893848] [<
ffffffff802f5170>] read_dev_sector+0x2e/0x93
[ 1.893848] [<
ffffffff802f5f44>] adfspart_check_ICS+0x28/0x16c
[ 1.893848] [<
ffffffff8025d427>] ? trace_hardirqs_on+0xd/0xf
[ 1.893848] [<
ffffffff802f5f1c>] ? adfspart_check_ICS+0x0/0x16c
[ 1.893848] [<
ffffffff802f59c5>] rescan_partitions+0x168/0x2fb
[ 1.893848] [<
ffffffff802ceae9>] __blkdev_get+0x259/0x336
[ 1.893848] [<
ffffffff803ca1e2>] ? kobject_put+0x47/0x4b
[ 1.893848] [<
ffffffff802cebd1>] blkdev_get+0xb/0xd
[ 1.893848] [<
ffffffff802f5773>] register_disk+0xc4/0x12b
[ 1.893848] [<
ffffffff803b2a7b>] add_disk+0xc3/0x12d
[ 1.893848] [<
ffffffff808a1d4a>] ? mm_init+0x0/0x1a5
[ 1.893848] [<
ffffffff808a1e73>] mm_init+0x129/0x1a5
[ 1.893848] [<
ffffffff808a1d4a>] ? mm_init+0x0/0x1a5
[ 1.893848] [<
ffffffff80209056>] _stext+0x56/0x130
[ 1.893848] [<
ffffffff80274932>] ? register_irq_proc+0xae/0xca
[ 1.893848] [<
ffffffff802f0000>] ? proc_pid_lookup+0xb4/0x18b
[ 1.893848] [<
ffffffff8087f975>] kernel_init+0x132/0x18b
[ 1.893848] [<
ffffffff8020d17a>] child_rip+0xa/0x20
[ 1.893848] [<
ffffffff8020cb40>] ? restore_args+0x0/0x30
[ 1.893848] [<
ffffffff8087f843>] ? kernel_init+0x0/0x18b
[ 1.893848] [<
ffffffff8020d170>] ? child_rip+0x0/0x20
[ 1.893848] ---[ end trace
7150b3b86da74e1f ]---
Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Jerome Marchand [Wed, 22 Apr 2009 12:01:49 +0000 (14:01 +0200)]
block: simplify I/O stat accounting
This simplifies I/O stat accounting switching code and separates it
completely from I/O scheduler switch code.
Requests are accounted according to the state of their request queue
at the time of the request allocation. There is no need anymore to
flush the request queue when switching I/O accounting state.
Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Alexander Beregalov [Tue, 21 Apr 2009 07:33:14 +0000 (09:33 +0200)]
pktcdvd.h should include mempool.h
Fix this build error:
In file included from fs/compat_ioctl.c:104:
include/linux/pktcdvd.h:285: error: expected specifier-qualifier-list before 'mempool_t'
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Len Brown [Fri, 24 Apr 2009 05:35:46 +0000 (01:35 -0400)]
Merge branch 'bugzilla-12249' into release
Len Brown [Fri, 24 Apr 2009 05:35:33 +0000 (01:35 -0400)]
Merge branch 'bugzilla-12270' into release
Len Brown [Fri, 24 Apr 2009 05:35:24 +0000 (01:35 -0400)]
Merge branch 'bugzilla-13041' into release
Len Brown [Fri, 24 Apr 2009 05:35:15 +0000 (01:35 -0400)]
Merge branch 'cpufreq' into release
Len Brown [Fri, 24 Apr 2009 05:35:08 +0000 (01:35 -0400)]
Merge branch 'idle' into release
Len Brown [Fri, 24 Apr 2009 05:34:59 +0000 (01:34 -0400)]
Merge branch 'irq' into release