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* | Merge branch 'for-2.6.33' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds2009-12-08
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block: (113 commits) cfq-iosched: Do not access cfqq after freeing it block: include linux/err.h to use ERR_PTR cfq-iosched: use call_rcu() instead of doing grace period stall on queue exit blkio: Allow CFQ group IO scheduling even when CFQ is a module blkio: Implement dynamic io controlling policy registration blkio: Export some symbols from blkio as its user CFQ can be a module block: Fix io_context leak after failure of clone with CLONE_IO block: Fix io_context leak after clone with CLONE_IO cfq-iosched: make nonrot check logic consistent io controller: quick fix for blk-cgroup and modular CFQ cfq-iosched: move IO controller declerations to a header file cfq-iosched: fix compile problem with !CONFIG_CGROUP blkio: Documentation blkio: Wait on sync-noidle queue even if rq_noidle = 1 blkio: Implement group_isolation tunable blkio: Determine async workload length based on total number of queues blkio: Wait for cfq queue to get backlogged if group is empty blkio: Propagate cgroup weight updation to cfq groups blkio: Drop the reference to queue once the task changes cgroup blkio: Provide some isolation between groups ...
| * | drbd_req.c: use part_[inc|dec]_in_flight()Philipp Reisner2009-12-03
| | | | | | | | | | | | | | | Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
| * | writeback: remove unused nonblocking and congestion checksWu Fengguang2009-12-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - no one is calling wb_writeback and write_cache_pages with wbc.nonblocking=1 any more - lumpy pageout will want to do nonblocking writeback without the congestion wait So remove the congestion checks as suggested by Chris. Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Cc: Chris Mason <chris.mason@oracle.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Dave Chinner <david@fromorbit.com> Cc: Evgeniy Polyakov <zbr@ioremap.net> Cc: Alex Elder <aelder@sgi.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | Merge branch 'master' into for-2.6.33Jens Axboe2009-12-03
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| * \ \ Merge branch 'for-jens' of git://git.drbd.org/linux-2.6-drbd into for-2.6.33Jens Axboe2009-11-26
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| | * | | Fixed a regression in resync decission code drbd_uuid_compare() [Bugz 260]Philipp Reisner2009-11-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since 8.3.3 we fail to do the resync when a partial resynch is not possible, but a full synch is necessary. This regression was introduced with 7101539930c0a89146959e7a39c09ad9c3516434 Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
| | * | | add missing state change on corrupt packet header in drbd_recv_headerLars Ellenberg2009-11-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Otherwise the 'state fixup' in the receiver will change to Unconnected, but the receiver will terminate itself, and any attempt at 'down'ing that drbd later will block forever. see also Bugz. #259 Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
| | * | | fix in-kernel configuration serializationLars Ellenberg2009-11-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | this is uncritical, as we still also serialize in userland, but to correctly serialize on the CONFIG_PENDING bit, it must be wait_event(state_wait, \!test_and_set_bit) Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
| * | | | block: add helpers to run flush_dcache_page() against a bio and a request's ↵Ilya Loginov2009-11-26
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pages Mtdblock driver doesn't call flush_dcache_page for pages in request. So, this causes problems on architectures where the icache doesn't fill from the dcache or with dcache aliases. The patch fixes this. The ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE symbol was introduced to avoid pointless empty cache-thrashing loops on architectures for which flush_dcache_page() is a no-op. Every architecture was provided with this flush pages on architectires where ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE is equal 1 or do nothing otherwise. See "fix mtd_blkdevs problem with caches on some architectures" discussion on LKML for more information. Signed-off-by: Ilya Loginov <isloginov@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Peter Horton <phorton@bitbox.co.uk> Cc: "Ed L. Cashin" <ecashin@coraid.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | cciss: change Cmd_sg_list.sg_chain_dma type to dma_addr_tAlex Chiang2009-11-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A recent commit broke the ia64 build: Author: Don Brace <brace@beardog.cce.hp.com> Date: Thu Nov 12 12:50:01 2009 -0600 cciss: Add enhanced scatter-gather support. because of this hunk: --- a/drivers/block/cciss.h +++ b/drivers/block/cciss.h +struct Cmd_sg_list { + SGDescriptor_struct *sgchain; + dma64_addr_t sg_chain_dma; + int chain_block_size; +}; The issue is that dma64_addr_t isn't #define'd on ia64. The way that we're using Cmd_sg_list.sg_chain_dma is to hold an address returned from pci_map_single(). + temp64.val = pci_map_single(h->pdev, + h->cmd_sg_list[c->cmdindex]->sgchain, + len, dir); + + h->cmd_sg_list[c->cmdindex]->sg_chain_dma = temp64.val; pci_map_single() returns a dma_addr_t too. This code will still work even on a 32-bit x86 build, where dma_addr_t is defined to be a u32 because it will simply be promoted to the __u64 that temp64.val is defined as. Thus, declaring Cmd_sg_list.sg_chain_dma as dma_addr_t is safe. Cc: Don Brace <brace@beardog.cce.hp.com> Cc: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | cciss: fix scatter gather cleanup problemsStephen M. Cameron2009-11-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On driver unload, only free up the extra scatter gather data if they were allocated in the first place (the controller supports it) and don't forget to free up the sg_cmd_list array of pointers. Signed-off-by: Don Brace <brace@beardog.cce.hp.com> Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | cciss: Fix weird usage of ENXIO in cciss_scsi.cStephen M. Cameron2009-11-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | cciss: Fix weird usage of ENXIO in cciss_scsi.c Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | cciss: Add enhanced scatter-gather support.Don Brace2009-11-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | cciss: Add enhanced scatter-gather support. For controllers which supported, more than 512 scatter-gather elements per command may be used, and the max transfer size can be increased to 8192 blocks. Signed-off-by: Don Brace <brace@beardog.cce.hp.com> Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | cciss: Do not automatically rescan on UNIT ATTENTION/LUN DATA CHANGEDStephen M. Cameron2009-11-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | cciss: Do not automatically rescan on UNIT ATTENTION/LUN DATA CHANGED There are problems with doing this. If, say, several logical drives are deleted at once, several such UNIT ATTENTIONS will be encountered, often during the rescan triggered by the first such UNIT ATTENTION. The block layer may be in the midst of trying to add logical drives which were just deleted (resulting in the subsequent UNIT ATTENTION(s).) Making the rescan code robust enough to tolerate this kind of thing is too complicated for the moment. So, for now, we just don't do it. Note: This UNIT ATTENTION/LUN DATA CHANGED situation only occurs on the MSA2012. Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | cciss: Remove unnecessary check in scan_threadStephen M. Cameron2009-11-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | cciss: Remove unnecessary check in scan_thread Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | cciss: fix typo that causes scsi status to be lost.Stephen M. Cameron2009-11-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | cciss: fix typo that causes scsi status to be lost. Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | cciss: remove sendcmd() as it is no longer used.Stephen M. Cameron2009-11-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | cciss: remove sendcmd() as it is no longer used. Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | cciss: clean up code in cciss_shutdownStephen M. Cameron2009-11-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | cciss: clean up code in cciss_shutdown. Send the flush cache command down with interrupts still enabled, and do not do DMA from the stack. Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | cciss: Remove the "withirq" parameter from various functions where possibleStephen M. Cameron2009-11-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | cciss: Remove the "withirq" parameter from various functions where possible Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | cciss: Retry driver initiated cmds with unit attention conditionStephen M. Cameron2009-11-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | cciss: Retry driver initiated cmds with unit attention condition Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | cciss: Fix problem with remove_from_scan_list on driver unloadStephen M. Cameron2009-11-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | cciss: Fix problem with remove_from_scan_list that on driver unload it doesn't remove the controller from the scan list correctly if the controller is currently being scanned for new devices. Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | cciss: Make device attributes staticAlex Chiang2009-11-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | cciss: Make device attributes static Cc: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Alex Chiang <achiang@hp.com> Acked-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | Merge branch 'for-jens' of git://git.drbd.org/linux-2.6-drbd into for-2.6.33Jens Axboe2009-11-04
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| | * | | drbd: performance - don't lose unplug eventsLars Ellenberg2009-11-04
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
| | * | | Do not deadlock in drbd_disconnect() [bugz 258]Philipp Reisner2009-11-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When there are many blocks on the fly (ua), and the AL gets into "starving" mode (random IO, scattered all over the device), and the connections gets interrupted, the receiver thread deadlocks in the drbd_disconnect() code path. Affected are only nodes in Primary role. The bug triggers most likely on system that mirror over "long distances" Regression introduced shortly before 8.3.3 with git commit 31e0f1250f174ac1ee317f360943a0159e19edc8 Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
| | * | | drbdsetup X resume-io should be usable to resume IO [Bugz 256]Philipp Reisner2009-11-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When IO gets frozen due to a broken fence-peer script, the user should be able to thaw IO by the resume-io command. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
| | * | | drbd: fix check for too large lower level deviceLars Ellenberg2009-11-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To check wether we are truncating a very large device due to limited meta data space, we need to check the ll_dev size. Also improve the printk to suggest "flexible" or "internal". Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
| | * | | fix grammar in printkLars Ellenberg2009-11-04
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
| | * | | Merge branch 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block into for-2.6.33Philipp Reisner2009-11-03
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| * | | | | block/ps3: fix slow VRAM IOHideyuki Sasaki2009-11-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current PS3 VRAM driver uses msleep() to wait for completion of RSX DMA transfers between system memory and VRAM. Depending on the system timing, the processing delay and overhead of this msleep() call can significantly impact VRAM driver IO. To avoid the condition, add a short duration (200 usec max) udelay() polling loop before entering the msleep() polling loop. Signed-off-by: Hideyuki Sasaki <xhide@rd.scei.sony.co.jp> Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Jim Paris <jim@jtan.com> Cc: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | | | Merge branch 'for-linus' into for-2.6.33Jens Axboe2009-11-03
| |\ \ \ \ \ | | |_|/ / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: block/cfq-iosched.c Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | | | drbd: fix in_flight rw indexingJens Axboe2009-10-28
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | | | Merge branch 'for-linus' into for-2.6.33Jens Axboe2009-10-13
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| * | | | | | drbd: needs __ratelimit()Randy Dunlap2009-10-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | drbd_int.h uses __ratelimit(), so it needs to #include ratelimit.h: drivers/block/drbd/drbd_int.h:1765: error: implicit declaration of function '__ratelimit' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: drbd-dev@lists.linbit.com Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | | | | drbd: Work on permission enforcementPhilipp Reisner2009-10-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now we have the capabilities of the sending process available, use them to enforce CAP_SYS_ADMIN. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | | | | drbd: fixup for reverted dual in_flight patchJens Axboe2009-10-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | | | | Merge branch 'master' into for-2.6.33Jens Axboe2009-10-05
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| * | | | | | | drbd: remove tracing bitsJens Axboe2009-10-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | They should be reimplemented in the current scheme. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | | | | | dropping unneeded include autoconf.hLars Ellenberg2009-10-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is force-included on the gcc command line since at least 2.6.15. Explicit include lines seem to break compilation now in certain configurations. Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> Signed-off-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Acked-by: Sam Ravnborg <sam@ravnborg.org>
| * | | | | | | The DRBD driverPhilipp Reisner2009-10-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
| * | | | | | | block: use normal I/O path for discard requestsChristoph Hellwig2009-10-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | prepare_discard_fn() was being called in a place where memory allocation was effectively impossible. This makes it inappropriate for all but the most trivial translations of Linux's DISCARD operation to the block command set. Additionally adding a payload there makes the ownership of the bio backing unclear as it's now allocated by the device driver and not the submitter as usual. It is replaced with QUEUE_FLAG_DISCARD which is used to indicate whether the queue supports discard operations or not. blkdev_issue_discard now allocates a one-page, sector-length payload which is the right thing for the common ATA and SCSI implementations. The mtd implementation of prepare_discard_fn() is replaced with simply checking for the request being a discard. Largely based on a previous patch from Matthew Wilcox <matthew@wil.cx> which did the prepare_discard_fn but not the different payload allocation yet. Signed-off-by: Christoph Hellwig <hch@lst.de>
* | | | | | | | Merge branch 'upstream-linus' of ↵Linus Torvalds2009-12-08
|\ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: (54 commits) Revert "pata_sis: Implement MWDMA for the UDMA 133 capable chips" libata: Clarify ata_set_lba_range_entries function libata: Report zeroed read after TRIM and max discard size pata_hpt3x2n: fix overclocked MWDMA0 timing pata_it8213: MWDMA0 is unsupported [libata] MWDMA0 is unsupported on PIIX-like PATA controllers pata_via: clear UDMA transfer mode bit for PIO and MWDMA pata_sis: Power Management fix pata_rz1000: Power Management fix pata_radisys: fix UDMA handling pata_ns87415: Power Management fix pata_marvell: fix marvell_pre_reset() documentation pata_legacy: add pointers to QDI65x0 documentation pata_legacy: fix access to control register for QDI6580 pata_legacy: fix QDI6580DP support pata_it8213: fix it8213_pre_reset() documentation pata_it8213: fix wrong MWDMA timings being programmed pata_it8213: fix PIO2 underclocking pata_it8213: fix wrong PIO timings being programmed pata_it8213: fix UDMA handling ...
| * | | | | | | | Revert "pata_sis: Implement MWDMA for the UDMA 133 capable chips"Jeff Garzik2009-12-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit f20941f334d8fdb6b598658979709b4e94cd034b. Sergei Shtylyov notes "You call min() on uncomparables [in mwdma_clip_to_pio()], i.e. mwdma_to_pio[] contains XFER_PIO_* and adev->pio_mode - XFER_PIO_0 yields you a mode number. Thus the second argument will always "win" as a minimal one" Bartlomiej Zolnierkiewicz adds "There are more issues with the patch related to mwdma_clip_to_pio(). The function can return values between 0 and 4 which obviously won't work well for the new code below for values >2 (i.e. resulting in out-of-bounds array access for the common-case of dev->pio_mode == XFER_PIO_4)." Bartlomiej Zolnierkiewicz also notes the patch is incomplete, failing to update MWDMA mode masks. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | | | | | libata: Clarify ata_set_lba_range_entries functionMartin K. Petersen2009-12-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ata_set_lba_range_entries used the variable max for two different things which was confusing. Make the function take a buffer size in bytes as argument and return the used buffer size upon completion. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | | | | | libata: Report zeroed read after TRIM and max discard sizeMartin K. Petersen2009-12-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Our current TRIM payload is a single sector that can accommodate 64 * 65535 blocks being unmapped. Report this value in the Block Limits Maximum Unmap LBA count field. If a storage device supports TRIM and the DRAT and RZAT bits are set, report TPRZ=1 in Read Capacity(16). Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | | | | | pata_hpt3x2n: fix overclocked MWDMA0 timingBartlomiej Zolnierkiewicz2009-12-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove superfluous timings table entry while at it. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | | | | | pata_it8213: MWDMA0 is unsupportedBartlomiej Zolnierkiewicz2009-12-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | | | | | [libata] MWDMA0 is unsupported on PIIX-like PATA controllersBartlomiej Zolnierkiewicz2009-12-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | MWDMA0 timings cannot be met with the PIIX based controller programming interface. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | | | | | pata_via: clear UDMA transfer mode bit for PIO and MWDMABartlomiej Zolnierkiewicz2009-12-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix register naming while at it. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | | | | | pata_sis: Power Management fixBartlomiej Zolnierkiewicz2009-12-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Call sis_fixup() on resume. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-13 05:21:08 -0400