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2011-03-31Fix common misspellingsLucas De Marchi
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-10block: remove per-queue pluggingJens Axboe
Code has been converted over to the new explicit on-stack plugging, and delay users have been converted to use the new API for that. So lets kill off the old plugging along with aops->sync_page(). Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2010-11-11Documentation: remove anticipatory scheduler infoRandy Dunlap
Remove anticipatory block I/O scheduler info from Documentation/ since the code has been deleted. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Reported-by: "Robert P. J. Day" <rpjday@crashcourse.ca> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2010-10-19Merge branch 'v2.6.36-rc8' into for-2.6.37/barrierJens Axboe
Conflicts: block/blk-core.c drivers/block/loop.c mm/swapfile.c Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2010-09-10block: update documentation for REQ_FLUSH / REQ_FUAChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2010-08-23cfq-iosched: Documentation help for new tunablesVivek Goyal
Some documentation to provide help with tunables. Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Acked-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2010-08-05nick piggin: change email addressNick Piggin
Signed-off-by: Nick Piggin <npiggin@kernel.dk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-08Documentation: fix block/biodoc.txt dma mapping descriptionFUJITA Tomonori
- It looks incorrect to use blk_rq_map_sg with pci_map_page here about DMA mappings. dma_map_sg? - better to use dma_map_page instead of pci_map_page. http://marc.info/?l=linux-kernel&m=126596737604808&w=2 Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2010-02-22Merge branch 'master' into for-2.6.34Jens Axboe
2010-01-29block: Added in stricter no merge semantics for block I/OAlan D. Brunelle
Updated 'nomerges' tunable to accept a value of '2' - indicating that _no_ merges at all are to be attempted (not even the simple one-hit cache). The following table illustrates the additional benefit - 5 minute runs of a random I/O load were applied to a dozen devices on a 16-way x86_64 system. nomerges Throughput %System Improvement (tput / %sys) -------- ------------ ----------- ------------------------- 0 12.45 MB/sec 0.669365609 1 12.50 MB/sec 0.641519199 0.40% / 2.71% 2 12.52 MB/sec 0.639849750 0.56% / 2.96% Signed-off-by: Alan D. Brunelle <alan.brunelle@hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2010-01-02Documentation: Rename Documentation/DMA-mapping.txtKusanagi Kouichi
It seems that Documentation/DMA-mapping.txt was supposed to be renamed to Documentation/PCI/PCI-DMA-mapping.txt. Signed-off-by: Kusanagi Kouichi <slash@ac.auone-net.jp> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-18block: remove Documentation/block/as-iosched.txtFUJITA Tomonori
Commit 492af6350a5ccf087e4964104a276ed358811458 removed the AS IO scheduler, so remove its documentation too. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-07-01Trivial typo fixes in Documentation/block/data-integrity.txt.Andre Noll
Signed-off-by: Andre Noll <maan@systemlinux.org> Acked-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-06-12trivial: Miscellaneous documentation typo fixesMatt LaPlante
Fix various typos in documentation txts. Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-06-02Removed reference to non-existing file Documentation/PCI/PCI-DMA-mapping.txtvibi sreenivasan
File Documentation/PCI/PCI-DMA-mapping.txt does not exist. Documentation/DMA-mapping.txt contains DMA Mapping details Signed-off-by: vibi sreenivasan <vibi_sreenivasan@cms.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-04-15block: update biodoc.txt on pluggingJens Axboe
We do per-device plugging, get rid of any references to tq_disk as that has been dead since 2.6.5 or so. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-03-26block: Repeated lines in switching-sched.txtAvishay Traeger
These lines appear in this file twice - removed one occurrence. Signed-off-by: Avishay Traeger <avishay@il.ibm.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-02-02block: add text file detailing queue/ sysfs filesJens Axboe
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-01-30Mark mandatory elevator functions in the biodoc.txtNikanth Karthikesan
biodoc.txt mentions that elevator functions marked with * are mandatory, but no function is marked with *. Mark the 3 functions which should be implemented by any io scheduler. Signed-off-by: Nikanth Karthikesan <knikanth@suse.de> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-01-29Documentation: move DMA-mapping.txt to Doc/PCI/Randy Dunlap
Move DMA-mapping.txt to Documentation/PCI/. DMA-mapping.txt was supposed to be moved from Documentation/ to Documentation/PCI/. The 00-INDEX files in those two directories were updated, along with a few other text files, but the file itself somehow escaped being moved, so move it and update more text files and source files with its new location. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-12-29Documentation: remove reference to ll_rw_blk.c and moved ↵Nikanth Karthikesan
drivers/block/elevator.c The drivers/block/ll_rw_block.c has been split and organized in the block/ directory, and also drivers/block/elevator.c has been moved to the block/ directory. Update Documentation/block/biodoc.txt accordingly Signed-off-by: Nikanth Karthikesan <knikanth@suse.de> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-16Merge branch 'docs' of git://git.lwn.net/linux-2.6Linus Torvalds
* 'docs' of git://git.lwn.net/linux-2.6: Document panic_on_unrecovered_nmi sysctl Add a reference to paper to SubmittingPatches Add kerneldoc documentation for new printk format extensions Remove videobook.tmpl doc: Test-by? Add the development process document Documentation/block/data-integrity.txt: Fix section numbers
2008-10-16Documentation/block/data-integrity.txt: Fix section numbersAlberto Bertogli
Signed-off-by: Alberto Bertogli <albertito@blitiri.com.ar> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2008-10-09block: update documentation for deadline fifo_batch tunableAaron Carroll
Update the description of fifo_batch to match the current implementation, and include a description of how to tune it. Signed-off-by: Aaron Carroll <aaronc@gelato.unsw.edu.au> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-07-03block: Data integrity infrastructure documentationMartin K. Petersen
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-04-21DOCUMENTATION: Use newer DEFINE_SPINLOCK macro in docs.Robert P. J. Day
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
2007-10-16Add Documentation/block/00-INDEXRob Landley
Add Documentation/block/00-INDEX Signed-off-by: Rob Landley <rob@landley.net> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-16Some IO scheduler cleanup in Documentation/blockAlan D. Brunelle
as-iosched.txt: o Changed IO scheduler selection text to a reference to the switching-sched.txt file. o Fixed typo: 'for up time...' -> 'for up to...' o Added short description of the est_time file. deadline-iosched.txt: o Changed IO scheduler selection text to a reference to the switching-sched.txt file. o Removed references to non-existent seek-cost and stream_unit. o Fixed typo: 'write_starved' -> 'writes_starved' switching-sched.txt: o Added in boot-time argument to set the default IO scheduler. (From as-iosched.txt) o Added in sysfs mount instructions. (From deadline-iosched.txt) Signed-off-by: Alan D. Brunelle <Alan.Brunelle@hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-16Update Jens Axboe's email in Documentation/*Rob Landley
Jens Axboe's old email address bounces. Signed-off-by: Rob Landley <rob@landley.net> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-10Corrections in Documentation/block/ioprio.txtDhaval Giani
The newer glibc does not allow system calls to be made via _syscallN() wrapper. They have to be made through syscall(). The ionice code used the older interface. Correcting it to use syscall. Signed-off-by: Dhaval Giani <dhaval@linux.vnet.ibm.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-10Introduce rq_for_each_segment replacing rq_for_each_bioNeilBrown
Every usage of rq_for_each_bio wraps a usage of bio_for_each_segment, so these can be combined into rq_for_each_segment. We define "struct req_iterator" to hold the 'bio' and 'index' that are needed for the double iteration. Signed-off-by: Neil Brown <neilb@suse.de> Various compile fixes by me... Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-24[BLOCK] Get rid of request_queue_t typedefJens Axboe
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: Jens Axboe <jens.axboe@oracle.com>
2007-07-10Documentation/block/barrier.txt is not in sync with the actual code: - ↵Geert Uytterhoeven
blk_queue_ordered() no longer has a gfp_mask parameter - blk_queue_ordered_locked() no longer exists - sd_prepare_flush() looks slightly different Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Acked-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-05-23genhd: expose AN to user spaceKristen Carlson Accardi
Allow user space to determine if a disk supports Asynchronous Notification of media changes. This is done by adding a new sysfs file "capability_flags", which is documented in (insert file name). This sysfs file will export all disk capabilities flags to user space. We also define a new flag to define the media change notification capability. Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-09misc doc and kconfig typosMatt LaPlante
Fix various typos in kernel docs and Kconfigs, 2.6.21-rc4. Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-12-20[PATCH] block: document io scheduler allow_merge_fn hookJens Axboe
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-07[PATCH] io/storage: Documentation update to as-iosched.txtFilipe
Documentation update, adding references to CFQ scheduler and to another document about selecting IO Schedulers. Signed-off-by: Filipe Lautert <filipe@icewall.org> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-30Fix typos in /Documentation : MiscMatt LaPlante
This patch fixes typos in various Documentation txts. The patch addresses some misc words. Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-11-30Fix typos in /Documentation : 'U-Z'Matt LaPlante
This patch fixes typos in various Documentation txts. The patch addresses some +words starting with the letters 'U-Z'. Looks like I made it through the alphabet...just in time to start over again +too! Maybe I can fit more profound fixes into the next round...? Time will +tell. :) Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03Documentation: remove duplicated wordsPaolo Ornati
Remove many duplicated words under Documentation/ and do other small cleanups. Examples: "and and" --> "and" "in in" --> "in" "the the" --> "the" "the the" --> "to the" ... Signed-off-by: Paolo Ornati <ornati@fastwebnet.it> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03Fix typos in Documentation/: 'S'Matt LaPlante
This patch fixes typos in various Documentation txts. The patch addresses some words starting with the letter 'S'. Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Acked-by: Alan Cox <alan@redhat.com> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03Fix typos in Documentation/: 'Q'-'R'Matt LaPlante
This patch fixes typos in various Documentation txts. The patch addresses some words starting with the letters 'Q'-'R'. Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03Fix typos in Documentation/: 'N'-'P'Matt LaPlante
This patch fixes typos in various Documentation txts. The patch addresses some words starting with the letters 'N'-'P'. Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03Fix typos in Documentation/: 'H'-'M'Matt LaPlante
This patch fixes typos in various Documentation txts. The patch addresses some words starting with the letters 'H'-'M'. Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03Fix typos in Documentation/: 'F'-'G'Matt LaPlante
This patch fixes typos in various Documentation txts. The patch addresses some words starting with the letters 'F'-'G'. Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03Fix typos in Documentation/: 'D'-'E'Matt LaPlante
This patch fixes typos in various Documentation txts. This patch addresses some words starting with the letters 'D'-'E'. Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03Fix typos in Documentation/: 'B'-'C'Matt LaPlante
This patch fixes typos in various Documentation txts. This patch addresses some words starting with the letters 'B'-'C'. There are also a few grammar fixes thrown in for Randy. ;) Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-04-20[PATCH] Document online io scheduler switchingValdis Kletnieks
We added the ability to change a block device's IO elevator scheduler both at kernel boot and on-the-fly, but we only documented the elevator= boot parameter. Add a quick how-to on doing it on the fly. Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jens Axboe <axboe@suse.de>
2006-03-27[PATCH] update max_sectors documentationMike Christie
The max_sectors has been split into max_hw_sectors and max_sectors for some time. A patch to have blk_queue_max_sectors enforce this was sent by me and it broke IDE. This patch updates the documentation. Signed-off-by: Jens Axboe <axboe@suse.de>
2006-01-16barrier.txt got lost while the new barrier patchset was climbing upTejun Heo
the ladder to the mainline. Add it back. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jens Axboe <axboe@suse.de>
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