linux/block, branch v2.6.18.2

[PATCH] md: check bio address after mapping through partitions.

2006-11-04T01:33:50Z

Partitions are not limited to live within a device. So we should range check after partition mapping. Note that 'maxsector' was being used for two different things. I have split off the second usage into 'old_sector' so that maxsector can be still be used for it's primary usage later in the function. Cc: Jens Axboe Signed-off-by: Neil Brown Signed-off-by: Chris Wright

block layer: elv_iosched_show should get elv_list_lock

2006-10-13T20:23:28Z

elv_iosched_show function iterates other elv_list, hence elv_list_lock should be got. Also the question is: in elv_iosched_show, elv_iosched_store q->elevator->elevator_type construction is used without locking q->queue_lock. Is it expected?.. Signed-off-by: Vasily Tarasov Cc: Jens Axboe Signed-off-by: Greg Kroah-Hartman

elv_unregister: fix possible crash on module unload

2006-08-22T19:52:23Z

An exiting task or process which didn't do I/O yet have no io context, elv_unregister() should check it is not NULL. Signed-off-by: Oleg Nesterov Acked-by: Jens Axboe Signed-off-by: Greg Kroah-Hartman

[PATCH] cfq_cic_link: fix usage of wrong cfq_io_context

2006-08-21T08:02:54Z

Obviously, cfq_cic_link() shouldn't free a just allocated cfq_io_context? The dead key is from __cic, so drop that. Signed-off-by: Oleg Nesterov Signed-off-by: Jens Axboe

[PATCH] Fix current_io_context() vs set_task_ioprio() race

2006-08-21T06:34:15Z

I know nothing about io scheduler, but I suspect set_task_ioprio() is not safe. current_io_context() initializes "struct io_context", then sets ->io_context. set_task_ioprio() running on another cpu may see the changes out of order, so ->set_ioprio(ioc) may use io_context which was not initialized properly. Signed-off-by: Oleg Nesterov Signed-off-by: Jens Axboe

[PATCH] cfq-iosched: don't use a hard jiffies value, translate from msecs

2006-07-25T13:05:21Z

The CIC_SEEKY() test really wants to use the minimum of either: - 2 msecs (not jiffies) - or, the pending slice time So code it like that. Signed-off-by: Jens Axboe

[PATCH] blktrace: fix read-ahead bit

2006-07-25T13:04:13Z

It should be toggling the same bit on and off, fix it up. Signed-off-by: Jens Axboe

[PATCH] lockdep: annotate the BLKPG_DEL_PARTITION ioctl

2006-07-15T04:53:53Z

The delete partition IOCTL takes the bd_mutex for both the disk and the partition; these have an obvious hierarchical relationship and this patch annotates this relationship for lockdep. Signed-off-by: Arjan van de Ven Acked-by: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] Only the first two bits in bio->bi_rw and rq->flags match

2006-07-06T08:18:05Z

Not three, as assumed. This causes the barrier bit to be needlessly set for some IO. Signed-off-by: Jens Axboe

[PATCH] blktrace: readahead support

2006-07-06T08:03:28Z

Provide the needed kernel support for distinguishing readahead from regular read requests when tracing block devices. Signed-off-by: Nathan Scott Signed-off-by: Jens Axboe