)]}' { "log": [ { "commit": "6e9624b8caec290d28b4c6d9ec75749df6372b87", "tree": "47225b544e1da82742795553dc4e8aa70c17afdc", "parents": [ "8a6cfeb6deca3a8fefd639d898b0d163c0b5d368" ], "author": { "name": "Arnd Bergmann", "email": "arnd@arndb.de", "time": "Sat Aug 07 18:25:34 2010 +0200" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Sat Aug 07 18:25:34 2010 +0200" }, "message": "block: push down BKL into .open and .release\n\nThe open and release block_device_operations are currently\ncalled with the BKL held. In order to change that, we must\nfirst make sure that all drivers that currently rely\non this have no regressions.\n\nThis blindly pushes the BKL into all .open and .release\noperations for all block drivers to prepare for the\nnext step. The drivers can subsequently replace the BKL\nwith their own locks or remove it completely when it can\nbe shown that it is not needed.\n\nThe functions blkdev_get and blkdev_put are the only\nremaining users of the big kernel lock in the block\nlayer, besides a few uses in the ioctl code, none\nof which need to serialize with blkdev_{get,put}.\n\nMost of these two functions is also under the protection\nof bdev-\u003ebd_mutex, including the actual calls to\n-\u003eopen and -\u003erelease, and the common code does not\naccess any global data structures that need the BKL.\n\nSigned-off-by: Arnd Bergmann \u003carnd@arndb.de\u003e\nAcked-by: Christoph Hellwig \u003chch@infradead.org\u003e\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\n" }, { "commit": "8a6cfeb6deca3a8fefd639d898b0d163c0b5d368", "tree": "9a633ad48c3b1ada0519ee7bade0602f940037f6", "parents": [ "34484062445fe905bf02c72f87ddda21881acda3" ], "author": { "name": "Arnd Bergmann", "email": "arnd@arndb.de", "time": "Thu Jul 08 10:18:46 2010 +0200" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Sat Aug 07 18:25:00 2010 +0200" }, "message": "block: push down BKL into .locked_ioctl\n\nAs a preparation for the removal of the big kernel\nlock in the block layer, this removes the BKL\nfrom the common ioctl handling code, moving it\ninto every single driver still using it.\n\nSigned-off-by: Arnd Bergmann \u003carnd@arndb.de\u003e\nAcked-by: Christoph Hellwig \u003chch@infradead.org\u003e\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\n" }, { "commit": "5a0e3ad6af8660be21ca98a971cd00f331318c05", "tree": "5bfb7be11a03176a87296a43ac6647975c00a1d1", "parents": [ "ed391f4ebf8f701d3566423ce8f17e614cde9806" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Wed Mar 24 17:04:11 2010 +0900" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Tue Mar 30 22:02:32 2010 +0900" }, "message": "include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h\n\npercpu.h is included by sched.h and module.h and thus ends up being\nincluded when building most .c files. percpu.h includes slab.h which\nin turn includes gfp.h making everything defined by the two files\nuniversally available and complicating inclusion dependencies.\n\npercpu.h -\u003e slab.h dependency is about to be removed. Prepare for\nthis change by updating users of gfp and slab facilities include those\nheaders directly instead of assuming availability. As this conversion\nneeds to touch large number of source files, the following script is\nused as the basis of conversion.\n\n http://userweb.kernel.org/~tj/misc/slabh-sweep.py\n\nThe script does the followings.\n\n* Scan files for gfp and slab usages and update includes such that\n only the necessary includes are there. ie. if only gfp is used,\n gfp.h, if slab is used, slab.h.\n\n* When the script inserts a new include, it looks at the include\n blocks and try to put the new include such that its order conforms\n to its surrounding. It\u0027s put in the include block which contains\n core kernel includes, in the same order that the rest are ordered -\n alphabetical, Christmas tree, rev-Xmas-tree or at the end if there\n doesn\u0027t seem to be any matching order.\n\n* If the script can\u0027t find a place to put a new include (mostly\n because the file doesn\u0027t have fitting include block), it prints out\n an error message indicating which .h file needs to be added to the\n file.\n\nThe conversion was done in the following steps.\n\n1. The initial automatic conversion of all .c files updated slightly\n over 4000 files, deleting around 700 includes and adding ~480 gfp.h\n and ~3000 slab.h inclusions. The script emitted errors for ~400\n files.\n\n2. Each error was manually checked. Some didn\u0027t need the inclusion,\n some needed manual addition while adding it to implementation .h or\n embedding .c file was more appropriate for others. This step added\n inclusions to around 150 files.\n\n3. The script was run again and the output was compared to the edits\n from #2 to make sure no file was left behind.\n\n4. Several build tests were done and a couple of problems were fixed.\n e.g. lib/decompress_*.c used malloc/free() wrappers around slab\n APIs requiring slab.h to be added manually.\n\n5. The script was run on all .h files but without automatically\n editing them as sprinkling gfp.h and slab.h inclusions around .h\n files could easily lead to inclusion dependency hell. Most gfp.h\n inclusion directives were ignored as stuff from gfp.h was usually\n wildly available and often used in preprocessor macros. Each\n slab.h inclusion directive was examined and added manually as\n necessary.\n\n6. percpu.h was updated not to include slab.h.\n\n7. Build test were done on the following configurations and failures\n were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my\n distributed build env didn\u0027t work with gcov compiles) and a few\n more options had to be turned off depending on archs to make things\n build (like ipr on powerpc/64 which failed due to missing writeq).\n\n * x86 and x86_64 UP and SMP allmodconfig and a custom test config.\n * powerpc and powerpc64 SMP allmodconfig\n * sparc and sparc64 SMP allmodconfig\n * ia64 SMP allmodconfig\n * s390 SMP allmodconfig\n * alpha SMP allmodconfig\n * um on x86_64 SMP allmodconfig\n\n8. percpu.h modifications were reverted so that it could be applied as\n a separate patch and serve as bisection point.\n\nGiven the fact that I had only a couple of failures from tests on step\n6, I\u0027m fairly confident about the coverage of this conversion patch.\nIf there is a breakage, it\u0027s likely to be something in one of the arch\nheaders which should be easily discoverable easily on most builds of\nthe specific arch.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nGuess-its-ok-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Ingo Molnar \u003cmingo@redhat.com\u003e\nCc: Lee Schermerhorn \u003cLee.Schermerhorn@hp.com\u003e\n" }, { "commit": "2724daf439d9f4e9f25c9fb8de8602ba61758478", "tree": "eb15e7240b92813d8e945869424b2616a57b3999", "parents": [ "53aac0ad7cb32af5c25d432454f936b57bf8c11f" ], "author": { "name": "Finn Thain", "email": "fthain@telegraphics.com.au", "time": "Wed Nov 04 00:39:56 2009 +1100" }, "committer": { "name": "Geert Uytterhoeven", "email": "geert@linux-m68k.org", "time": "Sat Feb 27 18:27:15 2010 +0100" }, "message": "mac68k: rework SWIM platform device\n\nAdjust the platform device code to conform with the code style used in the\nrest of this patch series. No need to name resources nor to register\ndevices which are not applicable.\n\nSigned-off-by: Finn Thain \u003cfthain@telegraphics.com.au\u003e\nSigned-off-by: Geert Uytterhoeven \u003cgeert@linux-m68k.org\u003e\n" }, { "commit": "83d5cde47dedf01b6a4a4331882cbc0a7eea3c2e", "tree": "f8ba5e263717d35cd444fcc65898d2ed352af1ae", "parents": [ "7b021967c5e1463936042c8da72b550d3cabe9ac" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Mon Sep 21 17:01:13 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:25 2009 -0700" }, "message": "const: make block_device_operations const\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "9934c8c04561413609d2bc38c6b9f268cba774a4", "tree": "30dd8f7be54f9b2e03094de9cd03b6a9ee2909cd", "parents": [ "2343046826a8ca426b07601d9593ee046c298b68" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Fri May 08 11:54:16 2009 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Mon May 11 09:52:18 2009 +0200" }, "message": "block: implement and enforce request peek/start/fetch\n\nTill now block layer allowed two separate modes of request execution.\nA request is always acquired from the request queue via\nelv_next_request(). After that, drivers are free to either dequeue it\nor process it without dequeueing. Dequeue allows elv_next_request()\nto return the next request so that multiple requests can be in flight.\n\nExecuting requests without dequeueing has its merits mostly in\nallowing drivers for simpler devices which can\u0027t do sg to deal with\nsegments only without considering request boundary. However, the\nbenefit this brings is dubious and declining while the cost of the API\nambiguity is increasing. Segment based drivers are usually for very\nold or limited devices and as converting to dequeueing model isn\u0027t\ndifficult, it doesn\u0027t justify the API overhead it puts on block layer\nand its more modern users.\n\nPrevious patches converted all block low level drivers to dequeueing\nmodel. This patch completes the API transition by...\n\n* renaming elv_next_request() to blk_peek_request()\n\n* renaming blkdev_dequeue_request() to blk_start_request()\n\n* adding blk_fetch_request() which is combination of peek and start\n\n* disallowing completion of queued (not started) requests\n\n* applying new API to all LLDs\n\nRenamings are for consistency and to break out of tree code so that\nit\u0027s apparent that out of tree drivers need updating.\n\n[ Impact: block request issue API cleanup, no functional change ]\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: James Bottomley \u003cJames.Bottomley@HansenPartnership.com\u003e\nCc: Mike Miller \u003cmike.miller@hp.com\u003e\nCc: unsik Kim \u003cdonari75@gmail.com\u003e\nCc: Paul Clements \u003cpaul.clements@steeleye.com\u003e\nCc: Tim Waugh \u003ctim@cyberelk.net\u003e\nCc: Geert Uytterhoeven \u003cGeert.Uytterhoeven@sonycom.com\u003e\nCc: David S. Miller \u003cdavem@davemloft.net\u003e\nCc: Laurent Vivier \u003cLaurent@lvivier.info\u003e\nCc: Jeff Garzik \u003cjgarzik@pobox.com\u003e\nCc: Jeremy Fitzhardinge \u003cjeremy@xensource.com\u003e\nCc: Grant Likely \u003cgrant.likely@secretlab.ca\u003e\nCc: Adrian McMenamin \u003cadrian@mcmen.demon.co.uk\u003e\nCc: Stephen Rothwell \u003csfr@canb.auug.org.au\u003e\nCc: Bartlomiej Zolnierkiewicz \u003cbzolnier@gmail.com\u003e\nCc: Borislav Petkov \u003cpetkovbb@googlemail.com\u003e\nCc: Sergei Shtylyov \u003csshtylyov@ru.mvista.com\u003e\nCc: Alex Dubov \u003coakad@yahoo.com\u003e\nCc: Pierre Ossman \u003cdrzeus@drzeus.cx\u003e\nCc: David Woodhouse \u003cdwmw2@infradead.org\u003e\nCc: Markus Lidel \u003cMarkus.Lidel@shadowconnect.com\u003e\nCc: Stefan Weinhuber \u003cwein@de.ibm.com\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Pete Zaitcev \u003czaitcev@redhat.com\u003e\nCc: FUJITA Tomonori \u003cfujita.tomonori@lab.ntt.co.jp\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "06b0608e2b46465e8e663214e7db982ddb000346", "tree": "70ad957fc0715fe52fe9dc9b0dac51c63f468518", "parents": [ "9e31bebee2d8b5f8abe9677f2a29b90cba848657" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Fri May 08 11:54:09 2009 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Mon May 11 09:52:16 2009 +0200" }, "message": "swim: dequeue in-flight request\n\nswim processes requests one-by-one synchronously and can easily be\nconverted to dequeuing model. Convert it.\n\n[ Impact: dequeue in-flight request ]\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Laurent Vivier \u003cLaurent@lvivier.info\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "83096ebf1263b2c1ee5e653ba37d993d02e3eb7b", "tree": "2226b71a616ec1cb2d37511c6a09ba9507a1cd69", "parents": [ "5b93629b4509c03ffa87a9316412fedf6f58cb37" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Thu May 07 22:24:39 2009 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Mon May 11 09:50:54 2009 +0200" }, "message": "block: convert to pos and nr_sectors accessors\n\nWith recent cleanups, there is no place where low level driver\ndirectly manipulates request fields. This means that the \u0027hard\u0027\nrequest fields always equal the !hard fields. Convert all\nrq-\u003esectors, nr_sectors and current_nr_sectors references to\naccessors.\n\nWhile at it, drop superflous blk_rq_pos() \u003c 0 test in swim.c.\n\n[ Impact: use pos and nr_sectors accessors ]\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nAcked-by: Geert Uytterhoeven \u003cGeert.Uytterhoeven@sonycom.com\u003e\nTested-by: Grant Likely \u003cgrant.likely@secretlab.ca\u003e\nAcked-by: Grant Likely \u003cgrant.likely@secretlab.ca\u003e\nTested-by: Adrian McMenamin \u003cadrian@mcmen.demon.co.uk\u003e\nAcked-by: Adrian McMenamin \u003cadrian@mcmen.demon.co.uk\u003e\nAcked-by: Mike Miller \u003cmike.miller@hp.com\u003e\nCc: James Bottomley \u003cJames.Bottomley@HansenPartnership.com\u003e\nCc: Bartlomiej Zolnierkiewicz \u003cbzolnier@gmail.com\u003e\nCc: Borislav Petkov \u003cpetkovbb@googlemail.com\u003e\nCc: Sergei Shtylyov \u003csshtylyov@ru.mvista.com\u003e\nCc: Eric Moore \u003cEric.Moore@lsi.com\u003e\nCc: Alan Stern \u003cstern@rowland.harvard.edu\u003e\nCc: FUJITA Tomonori \u003cfujita.tomonori@lab.ntt.co.jp\u003e\nCc: Pete Zaitcev \u003czaitcev@redhat.com\u003e\nCc: Stephen Rothwell \u003csfr@canb.auug.org.au\u003e\nCc: Paul Clements \u003cpaul.clements@steeleye.com\u003e\nCc: Tim Waugh \u003ctim@cyberelk.net\u003e\nCc: Jeff Garzik \u003cjgarzik@pobox.com\u003e\nCc: Jeremy Fitzhardinge \u003cjeremy@xensource.com\u003e\nCc: Alex Dubov \u003coakad@yahoo.com\u003e\nCc: David Woodhouse \u003cdwmw2@infradead.org\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Dario Ballabio \u003cballabio_dario@emc.com\u003e\nCc: David S. Miller \u003cdavem@davemloft.net\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: unsik Kim \u003cdonari75@gmail.com\u003e\nCc: Laurent Vivier \u003cLaurent@lvivier.info\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "e138b4e08ef65771000fbe6d93d67e3960ff862b", "tree": "2f7593bc1774bd6771dc29b8a522d681e9aa1719", "parents": [ "467ca759fc83fc35cb7d15aec0d74c62cffc4481" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Tue Apr 28 13:06:13 2009 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Tue Apr 28 08:14:51 2009 +0200" }, "message": "swim: clean up request completion paths\n\nswim curiously tries to update request parameters before calling\n__blk_end_request() when __blk_end_request() will do it anyway and\nunnecessarily checks whether current_nr_sectors is zero right after\nfetching.\n\nDrop unnecessary stuff and use standard block layer mechanisms.\n\n[ Impact: cleanup ]\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Laurent Vivier \u003cLaurent@lvivier.info\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "f06d9a2b52e246a66b606130cea3f0d7b7be17a7", "tree": "020df1f9d54b00c72d8af02ac0827d496597e75a", "parents": [ "40cbbb781d3eba5d6ac0860db078af490e5c7c6b" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Thu Apr 23 11:05:19 2009 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Tue Apr 28 07:37:36 2009 +0200" }, "message": "block: replace end_request() with [__]blk_end_request_cur()\n\nend_request() has been kept around for backward compatibility;\nhowever, it\u0027s about time for it to go away.\n\n* There aren\u0027t too many users left.\n\n* Its use of @updtodate is pretty confusing.\n\n* In some cases, newer code ends up using mixture of end_request() and\n [__]blk_end_request[_all](), which is way too confusing.\n\nSo, add [__]blk_end_request_cur() and replace end_request() with it.\nMost conversions are straightforward. Noteworthy ones are...\n\n* paride/pcd: next_request() updated to take 0/-errno instead of 1/0.\n\n* paride/pf: pf_end_request() and next_request() updated to take\n 0/-errno instead of 1/0.\n\n* xd: xd_readwrite() updated to return 0/-errno instead of 1/0.\n\n* mtd/mtd_blkdevs: blktrans_discard_request() updated to return\n 0/-errno instead of 1/0. Unnecessary local variable res\n initialization removed from mtd_blktrans_thread().\n\n[ Impact: cleanup ]\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nAcked-by: Joerg Dorchain \u003cjoerg@dorchain.net\u003e\nAcked-by: Geert Uytterhoeven \u003cgeert@linux-m68k.org\u003e\nAcked-by: Grant Likely \u003cgrant.likely@secretlab.ca\u003e\nAcked-by: Laurent Vivier \u003cLaurent@lvivier.info\u003e\nCc: Tim Waugh \u003ctim@cyberelk.net\u003e\nCc: Stephen Rothwell \u003csfr@canb.auug.org.au\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Jeremy Fitzhardinge \u003cjeremy@xensource.com\u003e\nCc: Markus Lidel \u003cMarkus.Lidel@shadowconnect.com\u003e\nCc: David Woodhouse \u003cdwmw2@infradead.org\u003e\nCc: Pete Zaitcev \u003czaitcev@redhat.com\u003e\nCc: unsik Kim \u003cdonari75@gmail.com\u003e\n" }, { "commit": "8852ecd97488249ca7fe2c0d3eb44cae95886881", "tree": "bc23ec6db412733952809ebc5307535ed043c4a0", "parents": [ "7ad93b42bd135641ddc2c298f030132aca7aeca3" ], "author": { "name": "Laurent Vivier", "email": "laurent@lvivier.info", "time": "Sat Nov 15 16:10:10 2008 +0100" }, "committer": { "name": "Geert Uytterhoeven", "email": "geert@linux-m68k.org", "time": "Thu Mar 26 21:15:27 2009 +0100" }, "message": "m68k: mac - Add SWIM floppy support\n\nIt allows to read data from a floppy, but not to write to, and to eject the\nfloppy (useful on our Mac without eject button).\n\nSigned-off-by: Laurent Vivier \u003cLaurent@lvivier.info\u003e\nSigned-off-by: Geert Uytterhoeven \u003cgeert@linux-m68k.org\u003e\n" } ] }