- 11 10月, 2008 1 次提交
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由 Kay Sievers 提交于
bus_id -> dev_name() conversions in s390 code. [cornelia.huck@de.ibm.com: minor adaptions] Signed-off-by: NKay Sievers <kay.sievers@vrfy.org> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 01 8月, 2008 1 次提交
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由 Stefan Weinhuber 提交于
When z/VM provides two virtual devices (minidisks) that reside on the same real device, both will receive the configuration data from the real device and thus get the same uid. To fix this problem, z/VM provides an additional configuration data record that allows to distinguish between minidisks. z/VM APAR VM64273 needs be installed so this fix has an effect. Signed-off-by: NStefan Weinhuber <wein@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 15 5月, 2008 1 次提交
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由 Cornelia Huck 提交于
We should use 'const char *' in the busid functions since the strings are not modified anyway. Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 17 4月, 2008 1 次提交
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由 Stefan Haberland 提交于
Now the system reports system information messages (SIM) to the user. The System Reference Code (SRC) which is reported to the user gives the abbility to lookup the reason of the SIM online in the documentation of the storage server. Signed-off-by: NStefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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- 26 1月, 2008 1 次提交
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由 Stefan Weinhuber 提交于
Parallel access volumes (PAV) is a storage server feature, that allows to start multiple channel programs on the same DASD in parallel. It defines alias devices which can be used as alternative paths to the same disk. With the old base PAV support we only needed rudimentary functionality in the DASD device driver. As the mapping between base and alias devices was static, we just had to export an identifier (uid) and could leave the combining of devices to external layers like a device mapper multipath. Now hyper PAV removes the requirement to dedicate alias devices to specific base devices. Instead each alias devices can be combined with multiple base device on a per request basis. This requires full support by the DASD device driver as now each channel program itself has to identify the target base device. The changes to the dasd device driver and the ECKD discipline are: - Separate subchannel device representation (dasd_device) from block device representation (dasd_block). Only base devices are block devices. - Gather information about base and alias devices and possible combinations. - For each request decide which dasd_device should be used (base or alias) and build specific channel program. - Support summary unit checks, which allow the storage server to upgrade / downgrade between base and hyper PAV at runtime (support is mandatory). Signed-off-by: NStefan Weinhuber <wein@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 12 10月, 2007 1 次提交
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由 vignesh babu 提交于
Replacing n & (n - 1) for power of 2 check by is_power_of_2(n) Signed-off-by: Nvignesh babu <vignesh.babu@wipro.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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- 24 7月, 2007 1 次提交
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由 Jens Axboe 提交于
Some of the code has been gradually transitioned to using the proper struct request_queue, but there's lots left. So do a full sweet of the kernel and get rid of this typedef and replace its uses with the proper type. Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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- 05 5月, 2007 1 次提交
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由 Cornelia Huck 提交于
Instead of the deprecated read_dev_chars() and read_conf_data_lpm(), implement dasd_generic_read_dev_chars() and dasd_eckd_read_conf_lpm(). These should even recover better from error than the original cio functions. Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 06 2月, 2007 1 次提交
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由 Horst Hummel 提交于
Logging of relevant information is already done by disciplines dump_sense function. Signed-off-by: NHorst Hummel <horst.hummel@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 08 12月, 2006 2 次提交
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由 Horst Hummel 提交于
It is now possible to enable/disable ERP related logging without re-compile and re-ipl. A additional sysfs-attribute 'erplog' allows to switch the logging non-interruptive. Signed-off-by: NHorst Hummel <horst.hummel@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Christoph Lameter 提交于
Replace all uses of kmem_cache_t with struct kmem_cache. The patch was generated using the following script: #!/bin/sh # # Replace one string by another in all the kernel sources. # set -e for file in `find * -name "*.c" -o -name "*.h"|xargs grep -l $1`; do quilt add $file sed -e "1,\$s/$1/$2/g" $file >/tmp/$$ mv /tmp/$$ $file quilt refresh done The script was run like this sh replace kmem_cache_t "struct kmem_cache" Signed-off-by: NChristoph Lameter <clameter@sgi.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 20 9月, 2006 1 次提交
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由 Martin Schwidefsky 提交于
The dasd_device_from_cdev function is called from interrupt context to get the struct dasd_device associated with a ccw device. The driver_data of the ccw device points to the dasd_devmap structure which contains the pointer to the dasd_device structure. The lock that protects the dasd_devmap structure is acquire with out irqsave. To prevent the deadlock in dasd_device_from_cdev if it is called from interrupt context the dependency to the dasd_devmap structure needs to be removed. Let the driver_data of the ccw device point to the dasd_device structure directly and use the ccw device lock to protect the access. Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 29 6月, 2006 2 次提交
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由 Horst Hummel 提交于
Add support for parallel-access-volumes to the dasd driver. This allows concurrent access to dasd devices with multiple channel programs. Signed-off-by: NHorst Hummel <horst.hummel@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Horst Hummel 提交于
Dasd code cleanup: 1) remove white space, 2) remove the emacs override sections, and 3) use kzalloc instead of kmalloc. Signed-off-by: NHorst Hummel <horst.hummel@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 27 6月, 2006 1 次提交
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由 Greg Kroah-Hartman 提交于
Also fixes up all files that #include it. Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 28 4月, 2006 1 次提交
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由 Horst Hummel 提交于
Generate new sysfs-attribute 'uid' that contains an device specific unique identifier. This can be used to identity multiple ALIASES of the same physical device (PAV). In addition the sysfs-attributes 'vendor' (containing the manufacturer of the device) and 'alias' (identify alias or base device) is added. This is first part of PAV support in LPAR (also valid on zVM). Signed-off-by: NHorst Hummel <horst.hummel@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 24 3月, 2006 4 次提交
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由 Stefan Weinhuber 提交于
The DASD extended error reporting is a facility that allows to get detailed information about certain problems in the DASD I/O. This information can be used to implement fail-over applications that can recover these problems. Signed-off-by: NStefan Weinhuber <wein@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Christoph Hellwig 提交于
Now that there are no more users of the awkward dynamic ioctl hack we can remove the code to support it. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Christoph Hellwig 提交于
Add an ->ioctl method to the dasd_discipline structure. This allows to apply the same kind of cleanups the last patch applied to dasd_ioctl.c to dasd_eckd.c (the only dasd discipline with special ioctls) aswell. Again lots of code removed. During auditing the ioctls I found two fishy return value propagations from copy_{from,to}_user, maintainers please check those, I've marked them with XXX comments. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Christoph Hellwig 提交于
Handle ioctls implemented in dasd_ioctl through the normal switch statement that most drivers use instead of the awkward dasd_ioctl_no_register routine. This avoids searching a linear list on every call to dasd_ioctl(), and allows to give the various ioctl implementation functions sane prototypes, aswell as moving the check for bdev->bd_disk->private_data from the individual functions to dasd_ioctl. (I think it can't actually every be NULL, but let's keep that for later) Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 09 3月, 2006 1 次提交
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由 Horst Hummel 提交于
DASD allows to open a device as soon as gendisk is registered, which means the device is a fake device (capacity=0) and we do know nothing about blocksize and partitions at that point of time. In case the device is opened by someone, the bdev and inode creation is done with the fake device info and the following partition detection code is just using the wrong data. To avoid this modify the DASD state machine to make sure that the open is rejected until the device analysis is either finished or an unformatted device was detected. Signed-off-by: NHorst Hummel <horst.hummel@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 21 2月, 2006 2 次提交
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由 Heiko Carstens 提交于
Revert dasd eer module until we have a common understanding of how the interface should be. Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Peter Oberparleiter 提交于
When using the dasd diag discipline, the base discipline module (eckd or fba) can be unloaded, even though the dasd driver requires both discipline modules (base and diag) to work correctly. Implement reference counting for both base and diag discipline modules in order to fix this. Signed-off-by: NPeter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 04 2月, 2006 1 次提交
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由 Stefan Weinhuber 提交于
The DASD extended error reporting is a facility that allows to get detailed information about certain problems in the DASD I/O. This information can be used to implement fail-over applications that can recover these problems. Signed-off-by: NStefan Weinhuber <wein@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 02 2月, 2006 1 次提交
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由 Heiko Carstens 提交于
- Remove all CVS generated information like e.g. revision IDs from drivers/s390 and include/asm-s390 (none present in arch/s390). - Add newline at end of arch/s390/lib/Makefile to avoid diff message. Acked-by: NAndreas Herrmann <aherrman@de.ibm.com> Acked-by: NFrank Pavlic <pavlic@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 11 1月, 2006 1 次提交
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由 Christoph Hellwig 提交于
Add a compat_ioctl method to the dasd driver so the last entries in arch/s390/kernel/compat_ioctl.c can go away. Unlike the previous attempt this one does not replace the ioctl method with an unlocked_ioctl method so that the ioctl_by_bdev calls in s390 partition code continue to work. Signed-off-by: NChristoph Hellwig <hch@lst.de> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 07 1月, 2006 1 次提交
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由 Horst Hummel 提交于
To properly support multipath-failover handling, the linux block layer has introduced a special request flag, 'REQ_FAILFAST'. This flag is now used to return requests immediately in case the device is not operational. Signed-off-by: NHorst Hummel <horst.hummel@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 05 9月, 2005 1 次提交
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由 Horst Hummel 提交于
Reintroduce a read-only copy of the devmap features in the device struct. This is necessary to solve a deadlock on the dasd_devmap_lock which is acquired by dasd_get_features called from the dasd tasklet. The current implementation of devmap doesn't allow to call any devmap function from interrupt or softirq context. Signed-off-by: NHorst Hummel <horst.hummel@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 01 5月, 2005 1 次提交
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由 Horst Hummel 提交于
The independent read-only flags in devmap, dasd_device and gendisk are not kept in sync. Use one bit per feature in the dasd driver and keep that bit in sync with the gendisk bit. Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 17 4月, 2005 1 次提交
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由 Linus Torvalds 提交于
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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