- 08 8月, 2010 1 次提交
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由 Christoph Hellwig 提交于
Remove all the trivial wrappers for the cmd_type and cmd_flags fields in struct requests. This allows much easier grepping for different request types instead of unwinding through macros. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NJens Axboe <jaxboe@fusionio.com>
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- 26 2月, 2010 1 次提交
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由 Martin K. Petersen 提交于
Except for SCSI no device drivers distinguish between physical and hardware segment limits. Consolidate the two into a single segment limit. Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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- 13 10月, 2009 1 次提交
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由 Paul Mundt 提交于
PHYSADDR() is gone, and completely unecessary in all of the cases the gdrom driver was using it. Kill off all references to it, and change the one legitimate use over to virt_to_phys() instead. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 22 9月, 2009 1 次提交
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由 Alexey Dobriyan 提交于
Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 23 5月, 2009 1 次提交
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由 Martin K. Petersen 提交于
Until now we have had a 1:1 mapping between storage device physical block size and the logical block sized used when addressing the device. With SATA 4KB drives coming out that will no longer be the case. The sector size will be 4KB but the logical block size will remain 512-bytes. Hence we need to distinguish between the physical block size and the logical ditto. This patch renames hardsect_size to logical_block_size. Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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- 11 5月, 2009 3 次提交
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由 Tejun Heo 提交于
Till now block layer allowed two separate modes of request execution. A request is always acquired from the request queue via elv_next_request(). After that, drivers are free to either dequeue it or process it without dequeueing. Dequeue allows elv_next_request() to return the next request so that multiple requests can be in flight. Executing requests without dequeueing has its merits mostly in allowing drivers for simpler devices which can't do sg to deal with segments only without considering request boundary. However, the benefit this brings is dubious and declining while the cost of the API ambiguity is increasing. Segment based drivers are usually for very old or limited devices and as converting to dequeueing model isn't difficult, it doesn't justify the API overhead it puts on block layer and its more modern users. Previous patches converted all block low level drivers to dequeueing model. This patch completes the API transition by... * renaming elv_next_request() to blk_peek_request() * renaming blkdev_dequeue_request() to blk_start_request() * adding blk_fetch_request() which is combination of peek and start * disallowing completion of queued (not started) requests * applying new API to all LLDs Renamings are for consistency and to break out of tree code so that it's apparent that out of tree drivers need updating. [ Impact: block request issue API cleanup, no functional change ] Signed-off-by: NTejun Heo <tj@kernel.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Mike Miller <mike.miller@hp.com> Cc: unsik Kim <donari75@gmail.com> Cc: Paul Clements <paul.clements@steeleye.com> Cc: Tim Waugh <tim@cyberelk.net> Cc: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: David S. Miller <davem@davemloft.net> Cc: Laurent Vivier <Laurent@lvivier.info> Cc: Jeff Garzik <jgarzik@pobox.com> Cc: Jeremy Fitzhardinge <jeremy@xensource.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Adrian McMenamin <adrian@mcmen.demon.co.uk> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Cc: Borislav Petkov <petkovbb@googlemail.com> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Alex Dubov <oakad@yahoo.com> Cc: Pierre Ossman <drzeus@drzeus.cx> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Markus Lidel <Markus.Lidel@shadowconnect.com> Cc: Stefan Weinhuber <wein@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Pete Zaitcev <zaitcev@redhat.com> Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Tejun Heo 提交于
gdrom already dequeues and fully completes requests on normal path and the error paths can be easily converted to do so too. Clean it up and dequeue requests on error paths too. While at it remove superflous blk_fs_request() && !blk_rq_sectors() condition check. [ Impact: dequeue in-flight request, cleanup ] Signed-off-by: NTejun Heo <tj@kernel.org> Cc: Adrian McMenamin <adrian@mcmen.demon.co.uk> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Tejun Heo 提交于
With recent cleanups, there is no place where low level driver directly manipulates request fields. This means that the 'hard' request fields always equal the !hard fields. Convert all rq->sectors, nr_sectors and current_nr_sectors references to accessors. While at it, drop superflous blk_rq_pos() < 0 test in swim.c. [ Impact: use pos and nr_sectors accessors ] Signed-off-by: NTejun Heo <tj@kernel.org> Acked-by: NGeert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Tested-by: NGrant Likely <grant.likely@secretlab.ca> Acked-by: NGrant Likely <grant.likely@secretlab.ca> Tested-by: NAdrian McMenamin <adrian@mcmen.demon.co.uk> Acked-by: NAdrian McMenamin <adrian@mcmen.demon.co.uk> Acked-by: NMike Miller <mike.miller@hp.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Cc: Borislav Petkov <petkovbb@googlemail.com> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Eric Moore <Eric.Moore@lsi.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Pete Zaitcev <zaitcev@redhat.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Paul Clements <paul.clements@steeleye.com> Cc: Tim Waugh <tim@cyberelk.net> Cc: Jeff Garzik <jgarzik@pobox.com> Cc: Jeremy Fitzhardinge <jeremy@xensource.com> Cc: Alex Dubov <oakad@yahoo.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Dario Ballabio <ballabio_dario@emc.com> Cc: David S. Miller <davem@davemloft.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: unsik Kim <donari75@gmail.com> Cc: Laurent Vivier <Laurent@lvivier.info> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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- 28 4月, 2009 2 次提交
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由 Tejun Heo 提交于
end_request() has been kept around for backward compatibility; however, it's about time for it to go away. * There aren't too many users left. * Its use of @updtodate is pretty confusing. * In some cases, newer code ends up using mixture of end_request() and [__]blk_end_request[_all](), which is way too confusing. So, add [__]blk_end_request_cur() and replace end_request() with it. Most conversions are straightforward. Noteworthy ones are... * paride/pcd: next_request() updated to take 0/-errno instead of 1/0. * paride/pf: pf_end_request() and next_request() updated to take 0/-errno instead of 1/0. * xd: xd_readwrite() updated to return 0/-errno instead of 1/0. * mtd/mtd_blkdevs: blktrans_discard_request() updated to return 0/-errno instead of 1/0. Unnecessary local variable res initialization removed from mtd_blktrans_thread(). [ Impact: cleanup ] Signed-off-by: NTejun Heo <tj@kernel.org> Acked-by: NJoerg Dorchain <joerg@dorchain.net> Acked-by: NGeert Uytterhoeven <geert@linux-m68k.org> Acked-by: NGrant Likely <grant.likely@secretlab.ca> Acked-by: NLaurent Vivier <Laurent@lvivier.info> Cc: Tim Waugh <tim@cyberelk.net> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Jeremy Fitzhardinge <jeremy@xensource.com> Cc: Markus Lidel <Markus.Lidel@shadowconnect.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Pete Zaitcev <zaitcev@redhat.com> Cc: unsik Kim <donari75@gmail.com>
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由 Tejun Heo 提交于
There are many [__]blk_end_request() call sites which call it with full request length and expect full completion. Many of them ensure that the request actually completes by doing BUG_ON() the return value, which is awkward and error-prone. This patch adds [__]blk_end_request_all() which takes @rq and @error and fully completes the request. BUG_ON() is added to to ensure that this actually happens. Most conversions are simple but there are a few noteworthy ones. * cdrom/viocd: viocd_end_request() replaced with direct calls to __blk_end_request_all(). * s390/block/dasd: dasd_end_request() replaced with direct calls to __blk_end_request_all(). * s390/char/tape_block: tapeblock_end_request() replaced with direct calls to blk_end_request_all(). [ Impact: cleanup ] Signed-off-by: NTejun Heo <tj@kernel.org> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Mike Miller <mike.miller@hp.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Jeff Garzik <jgarzik@pobox.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Jeremy Fitzhardinge <jeremy@xensource.com> Cc: Alex Dubov <oakad@yahoo.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
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- 28 10月, 2008 1 次提交
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由 Nobuhiro Iwamatsu 提交于
Return value and argument of block_device_operations.release of gdrom was changed. This patch fix this problem. Signed-off-by: NNobuhiro Iwamatsu <iwamatsu@nigauri.org> Acked-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 21 10月, 2008 3 次提交
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
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: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
... convert to it in callers Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 09 10月, 2008 1 次提交
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由 Kiyoshi Ueda 提交于
This patch converts gdrom to use __blk_end_request() directly so that end_{queued|dequeued}_request() can be removed. gd.transfer is '1' in error cases and '0' in non-error cases, so gdrom hasn't been propagating any error code to the block layer. We can just convert error cases to '-EIO'. Signed-off-by: NKiyoshi Ueda <k-ueda@ct.jp.nec.com> Signed-off-by: NJun'ichi Nomura <j-nomura@ce.jp.nec.com> Cc: Adrian McMenamin <adrian@mcmen.demon.co.uk> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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- 19 8月, 2008 1 次提交
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由 Borislav Petkov 提交于
Make sure audio_ioctl is always defined even if being a dummy function since the cdrom_ioctl interface assumes its existence and we don't want to BUG on null ptr on some ioctls like, e.g. CDROMREADTOCENTRY, CDROMREADTOCHDR etc. when we fix CDC_PLAY_AUDIO checking in cdrom.c. Signed-off-by: NBorislav Petkov <petkovbb@gmail.com> Acked-by: NAdrian McMenamin <adrian@mcmen.demon.co.uk> Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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- 29 7月, 2008 1 次提交
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由 Paul Mundt 提交于
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 21 4月, 2008 1 次提交
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由 Akinobu Mita 提交于
Now unregister_cdrom() always returns 0. Make it return void and update all callers that check the return value. Signed-off-by: NAkinobu Mita <akinobu.mita@gmail.com> Cc: Adrian McMenamin <adrian@mcmen.demon.co.uk> Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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- 28 1月, 2008 1 次提交
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由 Adrian McMenamin 提交于
This patch adds support for the GD-Rom drive, SEGA's proprietary implementation of an IDE CD Rom for the SEGA Dreamcast. This driver implements Sega's Packet Interface (SPI) - at least partially. It will also read disks in SEGA's propreitary GD format. Unlike previous drivers (which were never in mainline) this uses DMA and not PIO to read disks. It is a new driver, not a refactoring of old drivers. Signed-off by: Adrian McMenamin <adrian@mcmen.demon.co.uk> Acked-by: NJens Axboe <jens.axboe@oracle.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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