- 03 6月, 2013 1 次提交
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由 Maarten ter Huurne 提交于
This can be used for cache types for which syncing values one by one is equally efficient as syncing a range, such as the flat cache. Signed-off-by: NMaarten ter Huurne <maarten@treewalker.org> Signed-off-by: NMark Brown <broonie@linaro.org>
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- 25 5月, 2013 1 次提交
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由 Lars-Peter Clausen 提交于
regmap-mmio uses a spinlock with spin_lock() and spin_unlock() for locking. To be able to use the regmap API from different contexts (atomic vs non-atomic), without the risk of race conditions, we need to use spin_lock_irqsave() and spin_lock_irqrestore() instead. A new field, the spinlock_flags field, is added to regmap struct to store the flags between regmap_{,un}lock_spinlock(). The spinlock_flags field itself is also protected by the spinlock. Thanks to Stephen Warren for the suggestion of this particular solution. Signed-off-by: NLars-Peter Clausen <lars@metafoo.de> Reviewed-by: NStephen Warren <swarren@nvidia.com> Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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- 23 5月, 2013 1 次提交
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由 Lars-Peter Clausen 提交于
The parameter passed to the regmap lock/unlock callbacks needs to be map->lock_arg, regcache passes just map. This works fine in the case that no custom locking callbacks are used, since in this case map->lock_arg equals map, but will break when custom locking callbacks are used. The issue was introduced in commit 0d4529c5 ("regmap: make lock/unlock functions customizable") and is fixed by this patch. Signed-off-by: NLars-Peter Clausen <lars@metafoo.de> Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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- 12 5月, 2013 4 次提交
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由 Mark Brown 提交于
If range information has been provided then when we allocate a rbnode within a range allocate the entire range. The goal is to minimise the number of reallocations done when combining or extending blocks. At present only readability and yes_ranges are taken into account, this is expected to cover most cases efficiently. Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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由 Mark Brown 提交于
In preparation for being slightly smarter about how we allocate memory factor out the node allocation. Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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由 Mark Brown 提交于
Allow drivers to use an access table as part of their implementation. Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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由 Mark Brown 提交于
Allow drivers to discard parts of the register cache, for example if part of the hardware has been reset. Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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- 10 5月, 2013 33 次提交
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由 Chad Dupuis 提交于
Signed-off-by: NGiridhar Malavali <giridhar.malavali@qlogic.com> Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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由 Mike Christie 提交于
This fixes a bug where the iscsi class/driver did not do a put_device when a sess/conn device was found. This also simplifies the interface by not having to pass in some arguments that were duplicated and did not need to be exported. Reported-by: NZhao Hongjiang <zhaohongjiang@huawei.com> Signed-off-by: NMike Christie <michaelc@cs.wisc.edu> Acked-by: NVikas Chaudhary <vikas.chaudhary@qlogic.com> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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由 James Bottomley 提交于
These enums have been separate since the dawn of SAS, mainly because the latter is a procotol only enum and the former includes additional state for libsas. The dichotomy causes endless confusion about which one you should use where and leads to pointless warnings like this: drivers/scsi/mvsas/mv_sas.c: In function 'mvs_update_phyinfo': drivers/scsi/mvsas/mv_sas.c:1162:34: warning: comparison between 'enum sas_device_type' and 'enum sas_dev_type' [-Wenum-compare] Fix by eliminating one of them. The one kept is effectively the sas.h one, but call it sas_device_type and make sure the enums are all properly namespaced with the SAS_ prefix. Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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由 Sakthivel K 提交于
Modified thermal configuration to happen after interrupt registration Added SAS controller configuration during initialization Added error handling logic to handle I_T_Nexus errors and variants [jejb: fix up tabs and spaces issues] Signed-off-by: NAnand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: NJack Wang <jack_wang@usish.com> Reviewed-by: NHannes Reinecke <hare@suse.de> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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由 Sakthivel K 提交于
Handled NCQ errors in the low level driver as the FW is not providing the faulty tag for NCQ errors for libsas to recover. [jejb: fix checkpatch issues] Signed-off-by: NAnand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: NJack Wang <jack_wang@usish.com> Reviewed-by: NHannes Reinecke <hare@suse.de> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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由 Sakthivel K 提交于
Individual WWN read operations based on controller. PM8081 - Read WWN from Flash VPD. PM8088/89 - Read WWN from EEPROM. PM8001 - Read WWN from NVM. Signed-off-by: NSakthivel K <Sakthivel.SaravananKamalRaju@pmcs.com> Signed-off-by: NAnand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: NJack Wang <jack_wang@usish.com> Reviewed-by: NHannes Reinecke <hare@suse.de> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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由 Sakthivel K 提交于
Changed name in driver to pm80xx. Updated debug messages. Signed-off-by: NSakthivel K <Sakthivel.SaravananKamalRaju@pmcs.com> Signed-off-by: NAnand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: NJack Wang <jack_wang@usish.com> Reviewed-by: NHannes Reinecke <hare@suse.de> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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由 Sakthivel K 提交于
Performing pci_free_consistent in tasklet had result in a core dump. So allocated a new memory region for it. Fix for passing proper address and operation in firmware flash update. Signed-off-by: NSakthivel K <Sakthivel.SaravananKamalRaju@pmcs.com> Signed-off-by: NAnand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: NJack Wang <jack_wang@usish.com> Reviewed-by: NHannes Reinecke <hare@suse.de> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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由 Sakthivel K 提交于
Additional bar shift for new SPC firmware, applicable to device id 0x8081 only. Signed-off-by: NSakthivel K <Sakthivel.SaravananKamalRaju@pmcs.com> Signed-off-by: NAnand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: NJack Wang <jack_wang@usish.com> Reviewed-by: NHannes Reinecke <hare@suse.de> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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由 Sakthivel K 提交于
Implementation of SPCv/ve specific hardware functionality and macros. Changing common functionalities wrt SPCv/ve operations. Conditional checks for SPC specific operations. Signed-off-by: NSakthivel K <Sakthivel.SaravananKamalRaju@pmcs.com> Signed-off-by: NAnand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: NJack Wang <jack_wang@usish.com> Reviewed-by: NHannes Reinecke <hare@suse.de> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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由 Sakthivel K 提交于
Implementation of interrupt handlers and tasklets to support upto 64 interrupt for the device. Signed-off-by: NSakthivel K <Sakthivel.SaravananKamalRaju@pmcs.com> Signed-off-by: NAnand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: NJack Wang <jack_wang@usish.com> Reviewed-by: NHannes Reinecke <hare@suse.de> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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由 Sakthivel K 提交于
Update of function prototype for common function to SPC and SPCv/ve. Multiple queues implementation for IO. Signed-off-by: NSakthivel K <Sakthivel.SaravananKamalRaju@pmcs.com> Signed-off-by: NAnand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: NJack Wang <jack_wang@usish.com> Reviewed-by: NHannes Reinecke <hare@suse.de> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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由 Sakthivel K 提交于
Memory allocation and configuration of multiple inbound and outbound queues. Signed-off-by: NSakthivel K <Sakthivel.SaravananKamalRaju@pmcs.com> Signed-off-by: NAnand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: NJack Wang <jack_wang@usish.com> Reviewed-by: NHannes Reinecke <hare@suse.de> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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由 Sakthivel K 提交于
Updated pci id table with device, vendor, subdevice and subvendor ids for 8081, 8088, 8089 SAS/SATA controllers. Added SPCv/ve related macros. Updated macros, hba info structure and other structures for SPCv/ve. Update of structure and variable names for SPC hardware functionalities. Signed-off-by: NSakthivel K <Sakthivel.SaravananKamalRaju@pmcs.com> Signed-off-by: NAnand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: NJack Wang <jack_wang@usish.com> Reviewed-by: NHannes Reinecke <hare@suse.de> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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由 James Bottomley 提交于
lpfc uses the generic checksum as well as the T10DIF one from the lib/ directory, so make sure they're selected. Reported-by: NRandy Dunlap <rdunlap@infradead.org> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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由 Hannes Reinecke 提交于
scsi_send_eh_cmnd() is calling queuecommand() directly, so it needs to check the return value here. The only valid return codes for queuecommand() are 'busy' states, so we need to wait for a bit to allow the LLDD to recover. Based on an earlier patch from Wen Xiong. [jejb: fix confusion between msec and jiffies values and other issues] [bvanassche: correct stall_for interval] Cc: Wen Xiong <wenxiong@linux.vnet.ibm.com> Cc: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: NHannes Reinecke <hare@suse.de> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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由 Joe Thornber 提交于
Share configuration option processing code between the dm cache ctr and message functions. Signed-off-by: NJoe Thornber <ejt@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Alasdair G Kergon 提交于
Move process_config_option() in dm-cache-target.c to make the next patch more readable. Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Joe Thornber 提交于
Generate a dm event when the amount of remaining thin pool metadata space falls below a certain level. The threshold is taken to be a quarter of the size of the metadata device with a minimum threshold of 4MB. Signed-off-by: NJoe Thornber <ejt@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Joe Thornber 提交于
Add a threshold callback to dm persistent data space maps. Signed-off-by: NJoe Thornber <ejt@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Joe Thornber 提交于
Add a threshold callback function to the persistent data space map interface for a subsequent patch to use. dm-thin and dm-cache are interested in knowing when they're getting low on metadata or data blocks. This patch introduces a new method for registering a callback against a threshold. Signed-off-by: NJoe Thornber <ejt@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Joe Thornber 提交于
Allow the dm thin pool metadata device to be extended. Whenever a pool is resumed, detect whether the size of the metadata device has increased, and if so, extend the metadata to use the new space. Signed-off-by: NJoe Thornber <ejt@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Joe Thornber 提交于
Support extending a dm persistent data metadata space map. The extend itself is implemented by switching back to the boostrap allocator and pointing to the new space. The extra bitmap indexes are then allocated from the new space, and finally we switch back to the proper space map ops and tweak the reference counts. Signed-off-by: NJoe Thornber <ejt@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Joe Thornber 提交于
If a thin pool is created in read-only-metadata mode then only open the metadata device read-only. Previously it was always opened with FMODE_READ | FMODE_WRITE. (Note that dm_get_device() still allows read-only dm devices to be used read-write at the moment: If I create a read-only linear device for the metadata, via dmsetup load --readonly, then I can still create a rw pool out of it.) Signed-off-by: NJoe Thornber <ejt@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Joe Thornber 提交于
Refactor device size functions in preparation for similar metadata device resizing functions. Signed-off-by: NJoe Thornber <ejt@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Joe Thornber 提交于
Use struct assignment rather than memcpy in dm cache. Signed-off-by: NJoe Thornber <ejt@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Joe Thornber 提交于
Fix up some typos in dm-cache comments. Signed-off-by: NJoe Thornber <ejt@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Alasdair G Kergon 提交于
Correct the documented requirement on the return code from dm cache policy lookup functions stated in the policy module header file. Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Joe Thornber 提交于
Fix some typos in dm-space-map-metadata.c error messages. Signed-off-by: NJoe Thornber <ejt@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Joe Thornber 提交于
Tune the dm cache migration throttling. i) Issue a tick every second, just in case there's no i/o going through. ii) Drop the migration threshold right down to something suitable for background work. Signed-off-by: NJoe Thornber <ejt@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Mike Snitzer 提交于
Enable WRITE SAME support in dm multipath. As far as multipath is concerned it is just another write request. Signed-off-by: NMike Snitzer <snitzer@redhat.com> Tested-by: NBharata B Rao <bharata.rao@gmail.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Mike Snitzer 提交于
If device_not_write_same_capable() returns true then the iterate_devices loop in dm_table_supports_write_same() should return false. Reported-by: NBharata B Rao <bharata.rao@gmail.com> Signed-off-by: NMike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org # v3.8+ Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Mikulas Patocka 提交于
This patch uses memalloc_noio_save to avoid a possible deadlock in dm-bufio. (it could happen only with large block size, at most PAGE_SIZE << MAX_ORDER (typically 8MiB). __vmalloc doesn't fully respect gfp flags. The specified gfp flags are used for allocation of requested pages, structures vmap_area, vmap_block and vm_struct and the radix tree nodes. However, the kernel pagetables are allocated always with GFP_KERNEL. Thus the allocation of pagetables can recurse back to the I/O layer and cause a deadlock. This patch uses the function memalloc_noio_save to set per-process PF_MEMALLOC_NOIO flag and the function memalloc_noio_restore to restore it. When this flag is set, all allocations in the process are done with implied GFP_NOIO flag, thus the deadlock can't happen. This should be backported to stable kernels, but they don't have the PF_MEMALLOC_NOIO flag and memalloc_noio_save/memalloc_noio_restore functions. So, PF_MEMALLOC should be set and restored instead. Signed-off-by: NMikulas Patocka <mpatocka@redhat.com> Cc: stable@kernel.org Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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