kernel/git/stable/linux-stable.git/drivers/s390/block, branch linux-2.6.28.y

[S390] dasd: log sense for fatal errors

2008-11-14T17:18:54+00:00

The logging of sense data for fatal errors was accidentally removed during Hyper PAV implementation. Signed-off-by: Stefan Haberland Signed-off-by: Martin Schwidefsky

[PATCH] sanitize blkdev_get() and friends

2008-10-21T11:49:06+00:00

* get rid of fake struct file/struct dentry in __blkdev_get() * merge __blkdev_get() and do_open() * get rid of flags argument of blkdev_get() Signed-off-by: Al Viro

[PATCH] pass fmode_t to blkdev_put()

2008-10-21T11:48:58+00:00

Signed-off-by: Al Viro

[PATCH] switch dcssblk

2008-10-21T11:48:42+00:00

Signed-off-by: Al Viro

[PATCH] switch dasd

2008-10-21T11:48:40+00:00

->compat_ioctl() actually had been useless here; generic logics works fine. Signed-off-by: Al Viro

[PATCH] beginning of methods conversion

2008-10-21T11:47:32+00:00

To keep the size of changesets sane we split the switch by drivers; to keep the damn thing bisectable we do the following: 1) rename the affected methods, add ones with correct prototypes, make (few) callers handle both. That's this changeset. 2) for each driver convert to new methods. *ALL* drivers are converted in this series. 3) kill the old (renamed) methods. Note that it _is_ a flagday; all in-tree drivers are converted and by the end of this series no trace of old methods remain. The only reason why we do that this way is to keep the damn thing bisectable and allow per-driver debugging if anything goes wrong. New methods: open(bdev, mode) release(disk, mode) ioctl(bdev, mode, cmd, arg) /* Called without BKL */ compat_ioctl(bdev, mode, cmd, arg) locked_ioctl(bdev, mode, cmd, arg) /* Called with BKL, legacy */ Signed-off-by: Al Viro

[SCSI] block: separate failfast into multiple bits.

2008-10-13T13:28:52+00:00

Multipath is best at handling transport errors. If it gets a device error then there is not much the multipath layer can do. It will just access the same device but from a different path. This patch breaks up failfast into device, transport and driver errors. The multipath layers (md and dm mutlipath) only ask the lower levels to fast fail transport errors. The user of failfast, read ahead, will ask to fast fail on all errors. Note that blk_noretry_request will return true if any failfast bit is set. This allows drivers that do not support the multipath failfast bits to continue to fail on any failfast error like before. Drivers like scsi that are able to fail fast specific errors can check for the specific fail fast type. In the next patch I will convert scsi. Signed-off-by: Mike Christie Cc: Jens Axboe Signed-off-by: James Bottomley

[S390] Add ioctl support for EMC Symmetrix Subsystem Control I/O

2008-10-10T19:34:00+00:00

EMC Symmetrix Subsystem Control I/O through CKD dasd requires a specific parameter list sent to the array via a Perform Subsystem Function CCW. The Symmetrix response is retrieved from the array via a Read Subsystem Data CCW. Signed-off-by: Nigel Hislop Signed-off-by: Hannes Reinecke Signed-off-by: Martin Schwidefsky

[S390] xpram: per device block request queues.

2008-10-10T19:33:59+00:00

The xpram driver uses a single block device queue for all of its devices so far. With recent kernels removing xpram module fails to clean up all sysfs files. The next time the xpram module is loaded you'll get warnings: WARNING: at fs/sysfs/dir.c:463 sysfs_add_one+0x5e/0x64() sysfs: duplicate filename '35:0' can not be created Modules linked in: xpram(+) [last unloaded: xpram] Followed by the usual WARN_ON output, followed by an error message from kobject_add_internal, followed by a badness in genhd. Allocating a block queue per device fixes this. Signed-off-by: Martin Schwidefsky

[S390] dasd: fix message flood for unsolicited interrupts

2008-10-10T19:33:59+00:00

In the unsolicited interupt handler fake IRBs from CIO have to be ignored because there is nothing to do. The function dump_sense should not be called if there is no sense data available. Signed-off-by: Stefan Haberland Signed-off-by: Martin Schwidefsky