)]}' { "log": [ { "commit": "94ea4158f1733e3b10cef067d535f504866e0c41", "tree": "75a4d0c646b29dd529baeb3250afc1deaf570a8e", "parents": [ "9be96f3fd10187f185d84cf878cf032465bcced3" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Sep 16 00:45:36 2011 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Jan 03 22:54:06 2012 -0500" }, "message": "separate partition format handling from generic code\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "9be96f3fd10187f185d84cf878cf032465bcced3", "tree": "432a430ed9e0cbe0c18916cd3c3992f09b3feb37", "parents": [ "4752bc309b7604d507c973c7b7678ac2ce10a058" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Sep 16 00:25:05 2011 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Jan 03 22:54:06 2012 -0500" }, "message": "move fs/partitions to block/\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "04bf7869ca0fd12009aee301cac2264a36df4d98", "tree": "66cb81ebf8b76560a31433c2c493dc430c914af9", "parents": [ "d2f31a5fd60d168b00fc4f7617b68a1287b21e90", "7b28afe01ab6ffb5f152f47831b44933facd2328" ], "author": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Fri Jul 01 16:17:13 2011 +0200" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Fri Jul 01 16:17:13 2011 +0200" }, "message": "Merge branch \u0027for-linus\u0027 into for-3.1/core\n\nConflicts:\n\tblock/blk-throttle.c\n\tblock/cfq-iosched.c\n\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\n" }, { "commit": "dd7740933842202fccaa9ebcba6bce0507b3f6d6", "tree": "f3acae30239741f790e47910981edf9371d82046", "parents": [ "9f5e486550456587348e2048eecda5bee778250a" ], "author": { "name": "H Hartley Sweeten", "email": "hartleys@visionengravers.com", "time": "Mon Jun 13 11:47:24 2011 +0200" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Mon Jun 13 11:47:24 2011 +0200" }, "message": "fs/partitions/check.c: make local symbols static\n\nThe symbols part_ro_show, part_alignment_offset_show, and\npart_discard_alignment_show are not used outside this file and\nshould be marked static.\n\nSigned-off-by: H Hartley Sweeten \u003chsweeten@visionengravers.com\u003e\nCc: Yasuaki Ishimatsu \u003cisimatu.yasuaki@jp.fujitsu.com\u003e\nCc: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nAcked-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\n" }, { "commit": "a1706ac4c0201ea0143dc0db0659001b26ceeabb", "tree": "51b1fc266708d34e0878eaf1e6435773067379a0", "parents": [ "5988ce239682854d4e632fb58bff000700830394" ], "author": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Mon May 30 07:42:51 2011 +0200" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Mon May 30 07:42:51 2011 +0200" }, "message": "Revert \"block: Remove extra discard_alignment from hd_struct.\"\n\nIt was not a good idea to start dereferencing disk-\u003equeue from\nthe fs sysfs strategy for displaying discard alignment. We ran\ninto first a NULL pointer deref, and after fixing that we sometimes\nsee unvalid disk-\u003equeue pointer values.\n\nSince discard is the only one of the bunch actually looking into\nthe queue, just revert the change.\n\nThis reverts commit 23ceb5b7719e9276d4fa72a3ecf94dd396755276.\n\nConflicts:\n\tfs/partitions/check.c\n" }, { "commit": "f4fa3424c66255ba1e07b26becfc3d6cab0fdf65", "tree": "7c16496c0f87bc4f1236c08e264065c776baec73", "parents": [ "4db70f73e56961b9bcdfd0c36c62847a18b7dbb5" ], "author": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Thu May 26 21:01:38 2011 +0200" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Thu May 26 21:01:38 2011 +0200" }, "message": "block: fix oops on !disk-\u003equeue and sysfs discard alignment display\n\nEric Dumazet reports:\n\n----\n\nAt boot, I have a crash in part_discard_alignment_show+0x1b/0x50\n\nCR2 : 000006ac\n\nfault in : mov 0x2c(%rcx),%edx\n\nI suspect commit 23ceb5b7719e9276d4 (block: Remove extra\ndiscard_alignment from hd_struct) being in fault\n\n----\n\nNot quite known how -\u003equeue can be NULL while the sysfs entry\nexists, but lets play it safe and check for a NULL queue.\nThe rest of the sysfs show strategies in check.c do not dereference\ndisk-\u003equeue.\n\nReported-by: Eric Dumazet \u003ceric.dumazet@gmail.com\u003e\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\n" }, { "commit": "bbdd304cf66fbf2b4b2d28418dc619d443635e83", "tree": "c0740b29423b04a5d675539d5d841139b538c30a", "parents": [ "23ceb5b7719e9276d4fa72a3ecf94dd396755276" ], "author": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Mon May 09 08:28:13 2011 +0200" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Mon May 09 08:28:13 2011 +0200" }, "message": "fs: fixup warning part_discard_alignment_show()\n\nStephen reports:\n\n-----\n\nAfter merging the block tree, today\u0027s linux-next build (x86_64\nallmodconfig) produced this warning:\n\nfs/partitions/check.c: In function \u0027part_discard_alignment_show\u0027:\nfs/partitions/check.c:263: warning: format \u0027%u\u0027 expects type \u0027unsigned int\u0027, but argument 3 has type \u0027long long unsigned int\u0027\n\nIntroduced by commit (\"block: Remove extra discard_alignment from\nhd_struct\")\n\n-----\n\nFix it up by just removing the cast, we return an int already.\n\nReported-by: Stephen Rothwell \u003csfr@canb.auug.org.au\u003e\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\n" }, { "commit": "23ceb5b7719e9276d4fa72a3ecf94dd396755276", "tree": "f0613021d10b9e8464a26a78fcabf48e0f0b715b", "parents": [ "8af1954d172a46a63e5e79dae523a6d74715e458" ], "author": { "name": "Tao Ma", "email": "boyu.mt@taobao.com", "time": "Fri May 06 19:30:02 2011 -0600" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Fri May 06 19:30:02 2011 -0600" }, "message": "block: Remove extra discard_alignment from hd_struct.\n\nCurrently, hd_struct.discard_alignment is only used when we\nshow /sys/block/sdx/sdx/discard_alignment. So remove it and\ncalculate when it is asked to show.\n\nSigned-off-by: Tao Ma \u003cboyu.mt@taobao.com\u003e\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\n" }, { "commit": "25985edcedea6396277003854657b5f3cb31a628", "tree": "f026e810210a2ee7290caeb737c23cb6472b7c38", "parents": [ "6aba74f2791287ec407e0f92487a725a25908067" ], "author": { "name": "Lucas De Marchi", "email": "lucas.demarchi@profusion.mobi", "time": "Wed Mar 30 22:57:33 2011 -0300" }, "committer": { "name": "Lucas De Marchi", "email": "lucas.demarchi@profusion.mobi", "time": "Thu Mar 31 11:26:23 2011 -0300" }, "message": "Fix common misspellings\n\nFixes generated by \u0027codespell\u0027 and manually reviewed.\n\nSigned-off-by: Lucas De Marchi \u003clucas.demarchi@profusion.mobi\u003e\n" }, { "commit": "1e9bb8808ac11094d711d20d580e7b45a4992d0c", "tree": "d0e228b619664b7f507e37e5eba4a5ebeef103a0", "parents": [ "5e84ea3a9c662dc2d7a48703a4468fad954a3b7f" ], "author": { "name": "Shaohua Li", "email": "shaohua.li@intel.com", "time": "Tue Mar 22 08:35:35 2011 +0100" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Tue Mar 22 08:35:35 2011 +0100" }, "message": "block: fix non-atomic access to genhd inflight structures\n\nAfter the stack plugging introduction, these are called lockless.\nEnsure that the counters are updated atomically.\n\nSigned-off-by: Shaohua Li\u003cshaohua.li@intel.com\u003e\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\n" }, { "commit": "81c5e2ae33c4b19e53966b427e33646bf6811830", "tree": "a602a6dd100165c8948bfa713e6f0b422dcba5d8", "parents": [ "797a455d2c682476c3797dbfecf5bf84c1e3b9d3", "fcc57045d53edc35bcce456e60ac4aa802712934" ], "author": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Thu Jan 13 14:47:54 2011 +0100" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Thu Jan 13 14:47:54 2011 +0100" }, "message": "Merge branch \u0027for-2.6.38/event-handling\u0027 into for-2.6.38/core\n" }, { "commit": "6c23a9681c0fe7fb7dd331b39dda11926f43746e", "tree": "bf113a475a17faa866e7e59806378107dcb3aa40", "parents": [ "09e099d4bafea3b15be003d548bdf94b4b6e0e17" ], "author": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Fri Jan 07 08:43:37 2011 +0100" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Fri Jan 07 08:43:37 2011 +0100" }, "message": "block: add internal hd part table references\n\nWe can\u0027t use krefs since it\u0027s apparently restricted to very basic\nreference counting.\n\nThis reverts commit e4a683c8.\n\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\n" }, { "commit": "09e099d4bafea3b15be003d548bdf94b4b6e0e17", "tree": "a4199338ad73e88c0863bbfc6604c4972055f16d", "parents": [ "e4a683c899cd5a49f8d684a054c95bd115a0c005" ], "author": { "name": "Jerome Marchand", "email": "jmarchan@redhat.com", "time": "Wed Jan 05 16:57:38 2011 +0100" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Wed Jan 05 16:57:38 2011 +0100" }, "message": "block: fix accounting bug on cross partition merges\n\n/proc/diskstats would display a strange output as follows.\n\n$ cat /proc/diskstats |grep sda\n 8 0 sda 90524 7579 102154 20464 0 0 0 0 0 14096 20089\n 8 1 sda1 19085 1352 21841 4209 0 0 0 0 4294967064 15689 4293424691\n ~~~~~~~~~~\n 8 2 sda2 71252 3624 74891 15950 0 0 0 0 232 23995 1562390\n 8 3 sda3 54 487 2188 92 0 0 0 0 0 88 92\n 8 4 sda4 4 0 8 0 0 0 0 0 0 0 0\n 8 5 sda5 81 2027 2130 138 0 0 0 0 0 87 137\n\nIts reason is the wrong way of accounting hd_struct-\u003ein_flight. When a bio is\nmerged into a request belongs to different partition by ELEVATOR_FRONT_MERGE.\n\nThe detailed root cause is as follows.\n\nAssuming that there are two partition, sda1 and sda2.\n\n1. A request for sda2 is in request_queue. Hence sda1\u0027s hd_struct-\u003ein_flight\n is 0 and sda2\u0027s one is 1.\n\n | hd_struct-\u003ein_flight\n ---------------------------\n sda1 | 0\n sda2 | 1\n ---------------------------\n\n2. A bio belongs to sda1 is issued and is merged into the request mentioned on\n step1 by ELEVATOR_BACK_MERGE. The first sector of the request is changed\n from sda2 region to sda1 region. However the two partition\u0027s\n hd_struct-\u003ein_flight are not changed.\n\n | hd_struct-\u003ein_flight\n ---------------------------\n sda1 | 0\n sda2 | 1\n ---------------------------\n\n3. The request is finished and blk_account_io_done() is called. In this case,\n sda2\u0027s hd_struct-\u003ein_flight, not a sda1\u0027s one, is decremented.\n\n | hd_struct-\u003ein_flight\n ---------------------------\n sda1 | -1\n sda2 | 1\n ---------------------------\n\nThe patch fixes the problem by caching the partition lookup\ninside the request structure, hence making sure that the increment\nand decrement will always happen on the same partition struct. This\nalso speeds up IO with accounting enabled, since it cuts down on\nthe number of lookups we have to do.\n\nAlso add a refcount to struct hd_struct to keep the partition in\nmemory as long as users exist. We use kref_test_and_get() to ensure\nwe don\u0027t add a reference to a partition which is going away.\n\nSigned-off-by: Jerome Marchand \u003cjmarchan@redhat.com\u003e\nSigned-off-by: Yasuaki Ishimatsu \u003cisimatu.yasuaki@jp.fujitsu.com\u003e\nCc: stable@kernel.org\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\n" }, { "commit": "d2bf1b6723ed0eab378363649d15b7893bf14e91", "tree": "4a4144b09ab747ad661605aa761753d9a805e77f", "parents": [ "dddd9dc340ae1a41d90e084529ca979c77c4ecfe" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Wed Dec 08 20:57:36 2010 +0100" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Thu Dec 16 17:53:38 2010 +0100" }, "message": "block: move register_disk() and del_gendisk() to block/genhd.c\n\nThere\u0027s no reason for register_disk() and del_gendisk() to be in\nfs/partitions/check.c. Move both to genhd.c. While at it, collapse\nunlink_gendisk(), which was artificially in a separate function due to\ngenhd.c / check.c split, into del_gendisk().\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\n" }, { "commit": "f30195c50245d8ace628e1978b1daa8df86e7224", "tree": "edf4f91c4356c41d50fb07f15cebd1e6442538ad", "parents": [ "d07335e51df0c6dec202d315fc4f1f7e100eec4e", "d4d77629953eabd3c14f6fa5746f6b28babfc55f" ], "author": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Sat Nov 27 19:49:18 2010 +0100" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Sat Nov 27 19:49:18 2010 +0100" }, "message": "Merge branch \u0027cleanup-bd_claim\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc into for-2.6.38/core\n" }, { "commit": "a02056349cdea2252cd2b21643ebf025e83a29f2", "tree": "b7c889d6cbe8e7188d07d99a5c9da858c53a5b6c", "parents": [ "34db1d595ef6f183fbc1e42cda45a3dfa0035258", "e53beacd23d9cb47590da6a7a7f6d417b941a994" ], "author": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Tue Nov 16 10:09:42 2010 +0100" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Tue Nov 16 10:09:42 2010 +0100" }, "message": "Merge branch \u0027v2.6.37-rc2\u0027 into for-2.6.38/core\n" }, { "commit": "e525fd89d380c4a94c0d63913a1dd1a593ed25e7", "tree": "d226ef40d3f99e42fcf272ad432585cbd641ebec", "parents": [ "e09b457bdb7e8d23fc54dcef0930ac697d8de895" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Sat Nov 13 11:55:17 2010 +0100" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Sat Nov 13 11:55:17 2010 +0100" }, "message": "block: make blkdev_get/put() handle exclusive access\n\nOver time, block layer has accumulated a set of APIs dealing with bdev\nopen, close, claim and release.\n\n* blkdev_get/put() are the primary open and close functions.\n\n* bd_claim/release() deal with exclusive open.\n\n* open/close_bdev_exclusive() are combination of open and claim and\n the other way around, respectively.\n\n* bd_link/unlink_disk_holder() to create and remove holder/slave\n symlinks.\n\n* open_by_devnum() wraps bdget() + blkdev_get().\n\nThe interface is a bit confusing and the decoupling of open and claim\nmakes it impossible to properly guarantee exclusive access as\nin-kernel open + claim sequence can disturb the existing exclusive\nopen even before the block layer knows the current open if for another\nexclusive access. Reorganize the interface such that,\n\n* blkdev_get() is extended to include exclusive access management.\n @holder argument is added and, if is @FMODE_EXCL specified, it will\n gain exclusive access atomically w.r.t. other exclusive accesses.\n\n* blkdev_put() is similarly extended. It now takes @mode argument and\n if @FMODE_EXCL is set, it releases an exclusive access. Also, when\n the last exclusive claim is released, the holder/slave symlinks are\n removed automatically.\n\n* bd_claim/release() and close_bdev_exclusive() are no longer\n necessary and either made static or removed.\n\n* bd_link_disk_holder() remains the same but bd_unlink_disk_holder()\n is no longer necessary and removed.\n\n* open_bdev_exclusive() becomes a simple wrapper around lookup_bdev()\n and blkdev_get(). It also has an unexpected extra bdev_read_only()\n test which probably should be moved into blkdev_get().\n\n* open_by_devnum() is modified to take @holder argument and pass it to\n blkdev_get().\n\nMost of bdev open/close operations are unified into blkdev_get/put()\nand most exclusive accesses are tested atomically at the open time (as\nit should). This cleans up code and removes some, both valid and\ninvalid, but unnecessary all the same, corner cases.\n\nopen_bdev_exclusive() and open_by_devnum() can use further cleanup -\nrename to blkdev_get_by_path() and blkdev_get_by_devt() and drop\nspecial features. Well, let\u0027s leave them for another day.\n\nMost conversions are straight-forward. drbd conversion is a bit more\ninvolved as there was some reordering, but the logic should stay the\nsame.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nAcked-by: Neil Brown \u003cneilb@suse.de\u003e\nAcked-by: Ryusuke Konishi \u003ckonishi.ryusuke@lab.ntt.co.jp\u003e\nAcked-by: Mike Snitzer \u003csnitzer@redhat.com\u003e\nAcked-by: Philipp Reisner \u003cphilipp.reisner@linbit.com\u003e\nCc: Peter Osterlund \u003cpetero2@telia.com\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: Jan Kara \u003cjack@suse.cz\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Andreas Dilger \u003cadilger.kernel@dilger.ca\u003e\nCc: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\nCc: Mark Fasheh \u003cmfasheh@suse.com\u003e\nCc: Joel Becker \u003cjoel.becker@oracle.com\u003e\nCc: Alex Elder \u003caelder@sgi.com\u003e\nCc: Christoph Hellwig \u003chch@infradead.org\u003e\nCc: dm-devel@redhat.com\nCc: drbd-dev@lists.linbit.com\nCc: Leo Chen \u003cleochen@broadcom.com\u003e\nCc: Scott Branden \u003csbranden@broadcom.com\u003e\nCc: Chris Mason \u003cchris.mason@oracle.com\u003e\nCc: Steven Whitehouse \u003cswhiteho@redhat.com\u003e\nCc: Dave Kleikamp \u003cshaggy@linux.vnet.ibm.com\u003e\nCc: Joern Engel \u003cjoern@logfs.org\u003e\nCc: reiserfs-devel@vger.kernel.org\nCc: Alexander Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "34db1d595ef6f183fbc1e42cda45a3dfa0035258", "tree": "1fd9131f685dadd249c8bbb10c0c91eb6dc08a35", "parents": [ "2b9408a45978dcda77407859148deeccf403c372" ], "author": { "name": "Kay Sievers", "email": "kay.sievers@vrfy.org", "time": "Thu Nov 11 09:58:57 2010 +0100" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Thu Nov 11 09:58:57 2010 +0100" }, "message": "block: export \u0027ro\u0027 sysfs attribute for partitions\n\nWe already export \u0027ro\u0027 for the disk. This adds the same attribute\nfor partitions.\n\nCc: Karel Zak \u003ckzak@redhat.com\u003e\nSigned-off-by: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\n" }, { "commit": "f253b86b4ad1b3220544e75880510fd455ebd23f", "tree": "cc2dd76b8ffc8df4356c1e95bd15276169dd335e", "parents": [ "35da7a307c535f9c2929cae277f3df425c9f9b1e" ], "author": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Sun Oct 24 22:06:02 2010 +0200" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Sun Oct 24 22:06:02 2010 +0200" }, "message": "Revert \"block: fix accounting bug on cross partition merges\"\n\nThis reverts commit 7681bfeeccff5efa9eb29bf09249a3c400b15327.\n\nConflicts:\n\n\tinclude/linux/genhd.h\n\nIt has numerous issues with the cleanup path and non-elevator\ndevices. Revert it for now so we can come up with a clean\nversion without rushing things.\n\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\n" }, { "commit": "b9da0571050c09863e59f94d0b8594a290d61b88", "tree": "3632c4fee768db9a27a5c872bd42133692e2f3d0", "parents": [ "f8cae0f03f75adb54b1d48ddbc90f84a1f5de186", "5abd935661e01289ba143c3b2c1ba300c65bcc5f" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Oct 22 19:36:42 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Oct 22 19:36:42 2010 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (31 commits)\n driver core: Display error codes when class suspend fails\n Driver core: Add section count to memory_block struct\n Driver core: Add mutex for adding/removing memory blocks\n Driver core: Move find_memory_block routine\n hpilo: Despecificate driver from iLO generation\n driver core: Convert link_mem_sections to use find_memory_block_hinted.\n driver core: Introduce find_memory_block_hinted which utilizes kset_find_obj_hinted.\n kobject: Introduce kset_find_obj_hinted.\n driver core: fix build for CONFIG_BLOCK not enabled\n driver-core: base: change to new flag variable\n sysfs: only access bin file vm_ops with the active lock\n sysfs: Fail bin file mmap if vma close is implemented.\n FW_LOADER: fix kconfig dependency warning on HOTPLUG\n uio: Statically allocate uio_class and use class .dev_attrs.\n uio: Support 2^MINOR_BITS minors\n uio: Cleanup irq handling.\n uio: Don\u0027t clear driver data\n uio: Fix lack of locking in init_uio_class\n SYSFS: Allow boot time switching between deprecated and modern sysfs layout\n driver core: remove CONFIG_SYSFS_DEPRECATED_V2 but keep it for block devices\n ...\n" }, { "commit": "e52eec13cd6b7f30ab19081b387813e03e592ae5", "tree": "7b327e0b9283c578fb10922edcf6e10b3b8fd943", "parents": [ "39aba963d937edb20db7d9d93e6dda5d2adfdcdd" ], "author": { "name": "Andi Kleen", "email": "ak@linux.intel.com", "time": "Wed Sep 08 16:54:17 2010 +0200" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Fri Oct 22 10:16:43 2010 -0700" }, "message": "SYSFS: Allow boot time switching between deprecated and modern sysfs layout\n\nI have some systems which need legacy sysfs due to old tools that are\nmaking assumptions that a directory can never be a symlink to another\ndirectory, and it\u0027s a big hazzle to compile separate kernels for them.\n\nThis patch turns CONFIG_SYSFS_DEPRECATED into a run time option\nthat can be switched on/off the kernel command line. This way\nthe same binary can be used in both cases with just a option\non the command line.\n\nThe old CONFIG_SYSFS_DEPRECATED_V2 option is still there to set\nthe default. I kept the weird name to not break existing\nconfig files.\n\nAlso the compat code can be still completely disabled by undefining\nCONFIG_SYSFS_DEPRECATED_SWITCH -- just the optimizer takes\ncare of this now instead of lots of ifdefs. This makes the code\nlook nicer.\n\nv2: This is an updated version on top of Kay\u0027s patch to only\nhandle the block devices. I tested it on my old systems\nand that seems to work.\n\nCc: axboe@kernel.dk\nSigned-off-by: Andi Kleen \u003cak@linux.intel.com\u003e\nCc: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "7681bfeeccff5efa9eb29bf09249a3c400b15327", "tree": "8557964a2df96e253dcf1a61734b98dbfbf192d6", "parents": [ "495d2b3883682fcd1c3dee3a45e38fd00154ae25" ], "author": { "name": "Yasuaki Ishimatsu", "email": "isimatu.yasuaki@jp.fujitsu.com", "time": "Tue Oct 19 09:05:00 2010 +0200" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Tue Oct 19 09:07:02 2010 +0200" }, "message": "block: fix accounting bug on cross partition merges\n\n/proc/diskstats would display a strange output as follows.\n\n$ cat /proc/diskstats |grep sda\n 8 0 sda 90524 7579 102154 20464 0 0 0 0 0 14096 20089\n 8 1 sda1 19085 1352 21841 4209 0 0 0 0 4294967064 15689 4293424691\n ~~~~~~~~~~\n 8 2 sda2 71252 3624 74891 15950 0 0 0 0 232 23995 1562390\n 8 3 sda3 54 487 2188 92 0 0 0 0 0 88 92\n 8 4 sda4 4 0 8 0 0 0 0 0 0 0 0\n 8 5 sda5 81 2027 2130 138 0 0 0 0 0 87 137\n\nIts reason is the wrong way of accounting hd_struct-\u003ein_flight. When a bio is\nmerged into a request belongs to different partition by ELEVATOR_FRONT_MERGE.\n\nThe detailed root cause is as follows.\n\nAssuming that there are two partition, sda1 and sda2.\n\n1. A request for sda2 is in request_queue. Hence sda1\u0027s hd_struct-\u003ein_flight\n is 0 and sda2\u0027s one is 1.\n\n | hd_struct-\u003ein_flight\n ---------------------------\n sda1 | 0\n sda2 | 1\n ---------------------------\n\n2. A bio belongs to sda1 is issued and is merged into the request mentioned on\n step1 by ELEVATOR_BACK_MERGE. The first sector of the request is changed\n from sda2 region to sda1 region. However the two partition\u0027s\n hd_struct-\u003ein_flight are not changed.\n\n | hd_struct-\u003ein_flight\n ---------------------------\n sda1 | 0\n sda2 | 1\n ---------------------------\n\n3. The request is finished and blk_account_io_done() is called. In this case,\n sda2\u0027s hd_struct-\u003ein_flight, not a sda1\u0027s one, is decremented.\n\n | hd_struct-\u003ein_flight\n ---------------------------\n sda1 | -1\n sda2 | 1\n ---------------------------\n\nThe patch fixes the problem by caching the partition lookup\ninside the request structure, hence making sure that the increment\nand decrement will always happen on the same partition struct. This\nalso speeds up IO with accounting enabled, since it cuts down on\nthe number of lookups we have to do.\n\nWhen reloading partition tables, quiesce IO to ensure that no\nrequest references to the partition struct exists. When it is safe\nto free the partition table, the IO for that device is restarted\nagain.\n\nSigned-off-by: Yasuaki Ishimatsu \u003cisimatu.yasuaki@jp.fujitsu.com\u003e\nCc: stable@kernel.org\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\n" }, { "commit": "6d1d8050b4bc89d0165d29b58e894aeba2564a97", "tree": "b5c5b730bd7b80fe9041c031a6fcf08f42fff0d5", "parents": [ "144177991ca624841ddbd1e7edff958fc0f6d1fe" ], "author": { "name": "Will Drewry", "email": "wad@chromium.org", "time": "Tue Aug 31 15:47:05 2010 -0500" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Wed Sep 15 16:13:18 2010 +0200" }, "message": "block, partition: add partition_meta_info to hd_struct\n\nI\u0027m reposting this patch series as v4 since there have been no additional\ncomments, and I cleaned up one extra bit of unneeded code (in 3/3). The patches\nare against Linus\u0027s tree: 2bfc96a127bc1cc94d26bfaa40159966064f9c8c\n(2.6.36-rc3).\n\nWould this patchset be suitable for inclusion in an mm branch?\n\nThis changes adds a partition_meta_info struct which itself contains a\nunion of structures that provide partition table specific metadata.\n\nThis change leaves the union empty. The subsequent patch includes an\nimplementation for CONFIG_EFI_PARTITION-based metadata.\n\nSigned-off-by: Will Drewry \u003cwad@chromium.org\u003e\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\n" }, { "commit": "9c867fbe06458a8957024236b574733fae0cefed", "tree": "6eae6def53e4ca9e30f90f6e9c07d8044581f08f", "parents": [ "ecd6269174c04da5efbd17d6bff793e428eb45ef" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Tue Aug 10 18:03:14 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Aug 11 08:59:20 2010 -0700" }, "message": "partitions: fix sometimes unreadable partition strings\n\nFix this garbage happening quite often:\n\n\u003d\u003d\u003e\t sda:\n\tscsi 3:0:0:0: CD-ROM TOSHIBA\n\u003d\u003d\u003e\t sda1 sda2 sda3 sda4 \u003csr0: scsi3-mmc drive: 24x/24x writer dvd-ram cd/rw xa/form2 cdda tray\n\t\t\t ^^^\n\tUniform CD-ROM driver Revision: 3.20\n\tsr 3:0:0:0: Attached scsi CD-ROM sr0\n\u003d\u003d\u003e\t sda5 sda6 sda7 \u003e\n\nMake \"sda: sda1 ...\" lines actually lines.\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": "b97181f24212f4c29197890ce1b2b9100bcc184d", "tree": "4c743f8492d14e05a6a5bb9dba4a6177571ebcec", "parents": [ "9161e329ef004343250e3db17b8d12c252af88fc" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Mon May 10 17:09:25 2010 -0700" }, "committer": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Mon Jun 14 16:37:26 2010 -0700" }, "message": "fs: remove all rcu head initializations, except on_stack initializations\n\nRemove all rcu head inits. We don\u0027t care about the RCU head state before passing\nit to call_rcu() anyway. Only leave the \"on_stack\" variants so debugobjects can\nkeep track of objects on stack.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nSigned-off-by: Mathieu Desnoyers \u003cmathieu.desnoyers@efficios.com\u003e\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: Alexander Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: Andries Brouwer \u003caeb@cwi.nl\u003e\n" }, { "commit": "b403a98e260f3a8c7c33f58a07c7ae549852170f", "tree": "b6672b43cc1808632547f2f16c917d33d85e1399", "parents": [ "1493bf217f7f59a5d9e2095a7dbcec00fb36ca8b" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Sat May 15 20:09:31 2010 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri May 21 20:01:03 2010 +0200" }, "message": "block: improve automatic native capacity unlocking\n\nCurrently, native capacity unlocking is initiated only when a\nrecognized partition extends beyond the end of the disk. However,\nthere are several other unhandled cases where truncated capacity can\nlead to misdetection of partitions.\n\n* Partition table is fully beyond EOD.\n\n* Partition table is partially beyond EOD (daisy chained ones).\n\n* Recognized partition starts beyond EOD.\n\nThis patch updates generic partition check code such that all the\nabove three cases are handled too. For the first two, @state tracks\nwhether low level partition check code tried to read beyond EOD during\npartition scan and triggers native capacity unlocking accordingly.\nThe third is now handled similarly to the original unlocking case.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Ben Hutchings \u003cben@decadent.org.uk\u003e\nAcked-by: David S. Miller \u003cdavem@davemloft.net\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "1493bf217f7f59a5d9e2095a7dbcec00fb36ca8b", "tree": "9c03b0bd903a338d061958f8d65d196b14c81376", "parents": [ "c3e33e043f5e9c583aa59d5591a614b2a8243d3a" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Sat May 15 20:09:30 2010 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri May 21 20:01:02 2010 +0200" }, "message": "block: use struct parsed_partitions *state universally in partition check code\n\nMake the following changes to partition check code.\n\n* Add -\u003ebdev to struct parsed_partitions.\n\n* Introduce read_part_sector() which is a simple wrapper around\n read_dev_sector() which takes struct parsed_partitions *state\n instead of @bdev.\n\n* For functions which used to take @state and @bdev, drop @bdev. For\n functions which used to take @bdev, replace it with @state.\n\n* While updating, drop superflous checks on NULL state/bdev in ldm.c.\n\nThis cleans up the API a bit and enables better handling of IO errors\nduring partition check as the generic partition check code now has\nmuch better visibility into what went wrong in the low level code\npaths.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Ben Hutchings \u003cben@decadent.org.uk\u003e\nAcked-by: David S. Miller \u003cdavem@davemloft.net\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "c3e33e043f5e9c583aa59d5591a614b2a8243d3a", "tree": "fe8fef91dafb670fad1f433ae48514472b8d23e5", "parents": [ "56bca01738733709bef076e2e97bbd01e5659f24" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Sat May 15 20:09:29 2010 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri May 21 20:01:02 2010 +0200" }, "message": "block,ide: simplify bdops-\u003eset_capacity() to -\u003eunlock_native_capacity()\n\nbdops-\u003eset_capacity() is unnecessarily generic. All that\u0027s required\nis a simple one way notification to lower level driver telling it to\ntry to unlock native capacity. There\u0027s no reason to pass in target\ncapacity or return the new capacity. The former is always the\ninherent native capacity and the latter can be handled via the usual\ndevice resize / revalidation path. In fact, the current API is always\nused that way.\n\nReplace -\u003eset_capacity() with -\u003eunlock_native_capacity() which take\nonly @disk and doesn\u0027t return anything. IDE which is the only current\nuser of the API is converted accordingly.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Ben Hutchings \u003cben@decadent.org.uk\u003e\nCc: Bartlomiej Zolnierkiewicz \u003cbzolnier@gmail.com\u003e\nAcked-by: David S. Miller \u003cdavem@davemloft.net\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "56bca01738733709bef076e2e97bbd01e5659f24", "tree": "d4444fe75c7571a0fd9dd24df0ae7017b26cb7c5", "parents": [ "fa4b9074cd8428958c2adf9dc0c831f46e27c193" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Sat May 15 20:09:28 2010 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri May 21 20:01:02 2010 +0200" }, "message": "block: restart partition scan after resizing a device\n\nDevice resize via -\u003eset_capacity() can reveal new partitions (e.g. in\nchained partition table formats such as dos extended parts). Restart\npartition scan from the beginning after resizing a device. This\nchange also makes libata always revalidate the disk after resize which\nmakes lower layer native capacity unlocking implementation simpler and\nmore robust as resize can be handled in the usual path.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nReported-by: Ben Hutchings \u003cben@decadent.org.uk\u003e\nAcked-by: David S. Miller \u003cdavem@davemloft.net\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.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": "e03a72e13648ac6277bf2bab6b8324d51f89c0fa", "tree": "a01a2e072a5b225f22bd8bfa75f5270a527a4e4b", "parents": [ "ce289321b7dc1eb108e3df0dec872b7429ef49f7" ], "author": { "name": "Martin K. Petersen", "email": "martin.petersen@oracle.com", "time": "Mon Jan 11 03:21:51 2010 -0500" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Mon Jan 11 14:30:09 2010 +0100" }, "message": "block: Stop using byte offsets\n\nAll callers of the stacking functions use 512-byte sector units rather\nthan byte offsets. Simplify the code so the stacking functions take\nsectors when specifying data offsets.\n\nSigned-off-by: Martin K. Petersen \u003cmartin.petersen@oracle.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "86b37281411cf1e9bc0a6b5406c45edb7bd9ea5d", "tree": "729db57dd52054af1bc16b4afb131093dfc9d255", "parents": [ "cf7c25cf91f632a3528669fc0876e1fc8355ff9b" ], "author": { "name": "Martin K. Petersen", "email": "martin.petersen@oracle.com", "time": "Tue Nov 10 11:50:21 2009 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Tue Nov 10 11:50:21 2009 +0100" }, "message": "block: Expose discard granularity\n\nWhile SSDs track block usage on a per-sector basis, RAID arrays often\nhave allocation blocks that are bigger. Allow the discard granularity\nand alignment to be set and teach the topology stacking logic how to\nhandle them.\n\nSigned-off-by: Martin K. Petersen \u003cmartin.petersen@oracle.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "316d315bffa4026f28085f6b24ebcebede370ac7", "tree": "10b6b057fec2382536371d2e14f9d4c0d6cf9eea", "parents": [ "23e018a1b083ecb4b8bb2fb43d58e7c19b5d7959" ], "author": { "name": "Nikanth Karthikesan", "email": "knikanth@suse.de", "time": "Tue Oct 06 20:16:55 2009 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Tue Oct 06 20:16:55 2009 +0200" }, "message": "block: Seperate read and write statistics of in_flight requests v2\n\nCommit a9327cac440be4d8333bba975cbbf76045096275 added seperate read\nand write statistics of in_flight requests. And exported the number\nof read and write requests in progress seperately through sysfs.\n\nBut Corrado Zoccolo \u003cczoccolo@gmail.com\u003e reported getting strange\noutput from \"iostat -kx 2\". Global values for service time and\nutilization were garbage. For interval values, utilization was always\n100%, and service time is higher than normal.\n\nSo this was reverted by commit 0f78ab9899e9d6acb09d5465def618704255963b\n\nThe problem was in part_round_stats_single(), I missed the following:\n if (now \u003d\u003d part-\u003estamp)\n return;\n\n- if (part-\u003ein_flight) {\n+ if (part_in_flight(part)) {\n __part_stat_add(cpu, part, time_in_queue,\n part_in_flight(part) * (now - part-\u003estamp));\n __part_stat_add(cpu, part, io_ticks, (now - part-\u003estamp));\n\nWith this chunk included, the reported regression gets fixed.\n\nSigned-off-by: Nikanth Karthikesan \u003cknikanth@suse.de\u003e\n\n--\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "0f78ab9899e9d6acb09d5465def618704255963b", "tree": "b92832da61ae4f4d712a33ae524c482e979be5ba", "parents": [ "e00c54c36ac2024c3a8a37432e2e2698ff849594" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Sun Oct 04 21:04:38 2009 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Sun Oct 04 21:04:38 2009 +0200" }, "message": "Revert \"Seperate read and write statistics of in_flight requests\"\n\nThis reverts commit a9327cac440be4d8333bba975cbbf76045096275.\n\nCorrado Zoccolo \u003cczoccolo@gmail.com\u003e reports:\n\n\"with 2.6.32-rc1 I started getting the following strange output from\n\"iostat -kx 2\":\nLinux 2.6.31bisect (et2) \t04/10/2009 \t_i686_\t(2 CPU)\n\navg-cpu: %user %nice %system %iowait %steal %idle\n 10,70 0,00 3,16 15,75 0,00 70,38\n\nDevice: rrqm/s wrqm/s r/s w/s rkB/s wkB/s\navgrq-sz avgqu-sz await svctm %util\nsda 18,22 0,00 0,67 0,01 14,77 0,02\n43,94 0,01 10,53 39043915,03 2629219,87\nsdb 60,89 9,68 50,79 3,04 1724,43 50,52\n65,95 0,70 13,06 488437,47 2629219,87\n\navg-cpu: %user %nice %system %iowait %steal %idle\n 2,72 0,00 0,74 0,00 0,00 96,53\n\nDevice: rrqm/s wrqm/s r/s w/s rkB/s wkB/s\navgrq-sz avgqu-sz await svctm %util\nsda 0,00 0,00 0,00 0,00 0,00 0,00\n0,00 0,00 0,00 0,00 100,00\nsdb 0,00 0,00 0,00 0,00 0,00 0,00\n0,00 0,00 0,00 0,00 100,00\n\navg-cpu: %user %nice %system %iowait %steal %idle\n 6,68 0,00 0,99 0,00 0,00 92,33\n\nDevice: rrqm/s wrqm/s r/s w/s rkB/s wkB/s\navgrq-sz avgqu-sz await svctm %util\nsda 0,00 0,00 0,00 0,00 0,00 0,00\n0,00 0,00 0,00 0,00 100,00\nsdb 0,00 0,00 0,00 0,00 0,00 0,00\n0,00 0,00 0,00 0,00 100,00\n\navg-cpu: %user %nice %system %iowait %steal %idle\n 4,40 0,00 0,73 1,47 0,00 93,40\n\nDevice: rrqm/s wrqm/s r/s w/s rkB/s wkB/s\navgrq-sz avgqu-sz await svctm %util\nsda 0,00 0,00 0,00 0,00 0,00 0,00\n0,00 0,00 0,00 0,00 100,00\nsdb 0,00 4,00 0,00 3,00 0,00 28,00\n18,67 0,06 19,50 333,33 100,00\n\nGlobal values for service time and utilization are garbage. For\ninterval values, utilization is always 100%, and service time is\nhigher than normal.\n\nI bisected it down to:\n[a9327cac440be4d8333bba975cbbf76045096275] Seperate read and write\nstatistics of in_flight requests\nand verified that reverting just that commit indeed solves the issue\non 2.6.32-rc1.\"\n\nSo until this is debugged, revert the bad commit.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\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": "a4dbd6740df0872cdf0a86841f75beec8381964d", "tree": "1093687845d89f8397d61e7df1ad8546a5a25225", "parents": [ "5b2ea2f10dbb2fa91d8033993000f8664309395f" ], "author": { "name": "David Brownell", "email": "dbrownell@users.sourceforge.net", "time": "Wed Jun 24 10:06:31 2009 -0700" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Tue Sep 15 09:50:47 2009 -0700" }, "message": "driver model: constify attribute groups\n\nLet attribute group vectors be declared \"const\". We\u0027d\nlike to let most attribute metadata live in read-only\nsections... this is a start.\n\nSigned-off-by: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "a9327cac440be4d8333bba975cbbf76045096275", "tree": "83fd5dc45dc925c5b4eb0264c3add96cfaa4cae6", "parents": [ "18d8217bc441630c3c5ec7416c5a65c69e8a0979" ], "author": { "name": "Nikanth Karthikesan", "email": "knikanth@suse.de", "time": "Fri Sep 11 09:18:54 2009 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Mon Sep 14 08:24:52 2009 +0200" }, "message": "Seperate read and write statistics of in_flight requests\n\nCurrently, there is a single in_flight counter measuring the number of\nrequests in the request_queue. But some monitoring tools would like to\nknow how many read requests and write requests are in progress. Split the\ncurrent in_flight counter into two seperate counters for read and write.\n\nThis information is exported as a sysfs attribute, as changing the\ncurrently available stat files would break the existing tools.\n\nSigned-off-by: Nikanth Karthikesan \u003cknikanth@suse.de\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "f8c73c790c588fd70fda1632c8927a87b3d31dcd", "tree": "c50472e07f8e941cc6c31c5cb6532d6bb2f9cec3", "parents": [ "eb8d3c604fe7496323efb9a858bef84c489ca584" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Thu Jun 11 15:14:40 2009 +0200" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Sun Jul 12 13:02:09 2009 -0700" }, "message": "partitions: fix broken uevent_suppress conversion\n\ngit commit f67f129e \"Driver core: implement uevent suppress in kobject\"\ncontains this chunk for fs/partitions/check.c:\n\n \t/* suppress uevent if the disk supresses it */\n-\tif (!ddev-\u003euevent_suppress)\n+\tif (!dev_get_uevent_suppress(pdev))\n \t\tkobject_uevent(\u0026pdev-\u003ekobj, KOBJ_ADD);\n\nHowever that should have been\n\n-\tif (!ddev-\u003euevent_suppress)\n+\tif (!dev_get_uevent_suppress(ddev))\n\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nAcked-by: Ming Lei \u003ctom.leiming@gmail.com\u003e\nCc: stable \u003cstable@kernel.org\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "d614aec4752f8c61b2e7cb77806b6bd59aa50836", "tree": "3b0cfb3085c43415931dbf18666d582fb8ae3c75", "parents": [ "db8e7f10ed67933ca272f4030eb7057b7f13de07", "ad7c52d0988a8965989dc06d630c52a5bde849d5" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 12 09:29:42 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 12 09:29:42 2009 -0700" }, "message": "Merge branch \u0027for-2.6.31\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6\n\n* \u0027for-2.6.31\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (29 commits)\n ide: re-implement ide_pci_init_one() on top of ide_pci_init_two()\n ide: unexport ide_find_dma_mode()\n ide: fix PowerMac bootup oops\n ide: skip probe if there are no devices on the port (v2)\n sl82c105: add printk() logging facility\n ide-tape: fix proc warning\n ide: add IDE_DFLAG_NIEN_QUIRK device flag\n ide: respect quirk_drives[] list on all controllers\n hpt366: enable all quirks for devices on quirk_drives[] list\n hpt366: sync quirk_drives[] list with pdc202xx_{new,old}.c\n ide: remove superfluous SELECT_MASK() call from do_rw_taskfile()\n ide: remove superfluous SELECT_MASK() call from ide_driveid_update()\n icside: remove superfluous -\u003emaskproc method\n ide-tape: fix IDE_AFLAG_* atomic accesses\n ide-tape: change IDE_AFLAG_IGNORE_DSC non-atomically\n pdc202xx_old: kill resetproc() method\n pdc202xx_old: don\u0027t call pdc202xx_reset() on IRQ timeout\n pdc202xx_old: use ide_dma_test_irq()\n ide: preserve Host Protected Area by default (v2)\n ide-gd: implement block device -\u003eset_capacity method (v2)\n ...\n" }, { "commit": "db429e9ec0f9dee2d8e50c154f04f29f880fc9d6", "tree": "363328c6aa85f7a15cc061f7c71f3cc3a8cde970", "parents": [ "02c33b123e59cab5771e52a012aeb810500260a2" ], "author": { "name": "Bartlomiej Zolnierkiewicz", "email": "bzolnier@gmail.com", "time": "Sun Jun 07 13:52:52 2009 +0200" }, "committer": { "name": "Bartlomiej Zolnierkiewicz", "email": "bzolnier@gmail.com", "time": "Sun Jun 07 13:52:52 2009 +0200" }, "message": "partitions: add -\u003eset_capacity block device method\n\n* Add -\u003eset_capacity block device method and use it in rescan_partitions()\n to attempt enabling native capacity of the device upon detecting the\n partition which exceeds device capacity.\n\n* Add GENHD_FL_NATIVE_CAPACITY flag to try limit attempts of enabling\n native capacity during partition scan.\n\nTogether with the consecutive patch implementing -\u003eset_capacity method in\nide-gd device driver this allows automatic disabling of Host Protected Area\n(HPA) if any partitions overlapping HPA are detected.\n\nCc: Robert Hancock \u003chancockrwd@gmail.com\u003e\nCc: Frans Pop \u003celendil@planet.nl\u003e\nCc: \"Andries E. Brouwer\" \u003cAndries.Brouwer@cwi.nl\u003e\nAcked-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nEmphatically-Acked-by: Alan Cox \u003calan@linux.intel.com\u003e\nSigned-off-by: Bartlomiej Zolnierkiewicz \u003cbzolnier@gmail.com\u003e\n" }, { "commit": "02c33b123e59cab5771e52a012aeb810500260a2", "tree": "e9920f58c500a88820d2e1df29d464df21e650a1", "parents": [ "669165daad2ec839df85b8c5f7bc155e76a2f404" ], "author": { "name": "Bartlomiej Zolnierkiewicz", "email": "bzolnier@gmail.com", "time": "Sun Jun 07 13:52:51 2009 +0200" }, "committer": { "name": "Bartlomiej Zolnierkiewicz", "email": "bzolnier@gmail.com", "time": "Sun Jun 07 13:52:51 2009 +0200" }, "message": "partitions: warn about the partition exceeding device capacity\n\nThe current warning message says only about the kernel\u0027s action taken\nwithout mentioning the underlying reason behind it.\n\nNoticed-by: Robert Hancock \u003chancockrwd@gmail.com\u003e\nCc: Frans Pop \u003celendil@planet.nl\u003e\nCc: \"Andries E. Brouwer\" \u003cAndries.Brouwer@cwi.nl\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nEmphatically-Acked-by: Alan Cox \u003calan@linux.intel.com\u003e\nSigned-off-by: Bartlomiej Zolnierkiewicz \u003cbzolnier@gmail.com\u003e\n" }, { "commit": "c72758f33784e5e2a1a4bb9421ef3e6de8f9fcf3", "tree": "a83f7540cc894caafe74db911cba3998d6a9a164", "parents": [ "cd43e26f071524647e660706b784ebcbefbd2e44" ], "author": { "name": "Martin K. Petersen", "email": "martin.petersen@oracle.com", "time": "Fri May 22 17:17:53 2009 -0400" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri May 22 23:22:55 2009 +0200" }, "message": "block: Export I/O topology for block devices and partitions\n\nTo support devices with physical block sizes bigger than 512 bytes we\nneed to ensure proper alignment. This patch adds support for exposing\nI/O topology characteristics as devices are stacked.\n\n logical_block_size is the smallest unit the device can address.\n\n physical_block_size indicates the smallest I/O the device can write\n without incurring a read-modify-write penalty.\n\n The io_min parameter is the smallest preferred I/O size reported by\n the device. In many cases this is the same as the physical block\n size. However, the io_min parameter can be scaled up when stacking\n (RAID5 chunk size \u003e physical block size).\n\n The io_opt characteristic indicates the optimal I/O size reported by\n the device. This is usually the stripe width for arrays.\n\n The alignment_offset parameter indicates the number of bytes the start\n of the device/partition is offset from the device\u0027s natural alignment.\n Partition tools and MD/DM utilities can use this to pad their offsets\n so filesystems start on proper boundaries.\n\nSigned-off-by: Martin K. Petersen \u003cmartin.petersen@oracle.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "8302294f43250dc337108c51882a6007f2b1e2e0", "tree": "85acd4440799c46a372df9cad170fa0c21e59096", "parents": [ "4fe70410d9a219dabb47328effccae7e7f2a6e26", "2e572895bf3203e881356a4039ab0fa428ed2639" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Apr 01 21:54:19 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Apr 02 00:49:02 2009 +0200" }, "message": "Merge branch \u0027tracing/core-v2\u0027 into tracing-for-linus\n\nConflicts:\n\tinclude/linux/slub_def.h\n\tlib/Kconfig.debug\n\tmm/slob.c\n\tmm/slub.c\n" }, { "commit": "f67f129e519fa87f8ebd236b6336fe43f31ee141", "tree": "e2832f6d012044f5d05c6130416832235c7d2730", "parents": [ "4995f8ef9d3aac72745e12419d7fbaa8d01b1d81" ], "author": { "name": "Ming Lei", "email": "tom.leiming@gmail.com", "time": "Sun Mar 01 21:10:49 2009 +0800" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Tue Mar 24 16:38:26 2009 -0700" }, "message": "Driver core: implement uevent suppress in kobject\n\nThis patch implements uevent suppress in kobject and removes it\nfrom struct device, based on the following ideas:\n\n1,Uevent sending should be one attribute of kobject, so suppressing it\nin kobject layer is more natural than in device layer. By this way,\nwe can do it for other objects embedded with kobject.\n\n2,It may save several bytes for each instance of struct device.(On my\nomap3(32bit ARM) based box, can save 8bytes per device object)\n\nThis patch also introduces dev_set|get_uevent_suppress() helpers to\nset and query uevent_suppress attribute in case to help kobject\nas private part of struct device in future.\n\n[This version is against the latest driver-core patch set of Greg,please\nignore the last version.]\n\nSigned-off-by: Ming Lei \u003ctom.leiming@gmail.com\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "157f9c00e88529ed84bd7d581a40d411e5414cf0", "tree": "7d7360cd76c5339c831e0e5ffd3cce5a659a9614", "parents": [ "c71a896154119f4ca9e89d6078f5f63ad60ef199" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Mon Jan 26 15:00:56 2009 -0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jan 26 18:30:01 2009 +0100" }, "message": "tracing/blktrace: fix up checkpatch reported problems in ftrace plugin patch\n\nAlso make sure sparse (make C\u003d2 block/blktrace.o) is happy too.\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "c71a896154119f4ca9e89d6078f5f63ad60ef199", "tree": "0018ea80af12d6385fd0aa5295dddefdb284eebe", "parents": [ "9011262a37cb438f0fa9394b5e83840db8f9680a" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri Jan 23 12:06:27 2009 -0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jan 26 14:40:53 2009 +0100" }, "message": "blktrace: add ftrace plugin\n\nImpact: New way of using the blktrace infrastructure\n\nThis drops the requirement of userspace utilities to use the blktrace\nfacility.\n\nConfiguration is done thru sysfs, adding a \"trace\" directory to the\npartition directory where blktrace can be enabled for the associated\nrequest_queue.\n\nThe same filters present in the IOCTL interface are present as sysfs\ndevice attributes.\n\nThe /sys/block/sdX/sdXN/trace/enable file allows tracing without any\nfilters.\n\nThe other files in this directory: pid, act_mask, start_lba and end_lba\ncan be used with the same meaning as with the IOCTL interface.\n\nUsing the sysfs interface will only setup the request_queue-\u003eblk_trace\nfields, tracing will only take place when the \"blk\" tracer is selected\nvia the ftrace interface, as in the following example:\n\nTo see the trace, one can use the /d/tracing/trace file or the\n/d/tracign/trace_pipe file, with semantics defined in the ftrace\ndocumentation in Documentation/ftrace.txt.\n\n[root@f10-1 ~]# cat /t/trace\n kjournald-305 [000] 3046.491224: 8,1 A WBS 6367 + 8 \u003c- (8,1) 6304\n kjournald-305 [000] 3046.491227: 8,1 Q R 6367 + 8 [kjournald]\n kjournald-305 [000] 3046.491236: 8,1 G RB 6367 + 8 [kjournald]\n kjournald-305 [000] 3046.491239: 8,1 P NS [kjournald]\n kjournald-305 [000] 3046.491242: 8,1 I RBS 6367 + 8 [kjournald]\n kjournald-305 [000] 3046.491251: 8,1 D WB 6367 + 8 [kjournald]\n kjournald-305 [000] 3046.491610: 8,1 U WS [kjournald] 1\n \u003cidle\u003e-0 [000] 3046.511914: 8,1 C RS 6367 + 8 [6367]\n[root@f10-1 ~]#\n\nThe default line context (prefix) format is the one described in the ftrace\ndocumentation, with the blktrace specific bits using its existing format,\ndescribed in blkparse(8).\n\nIf one wants to have the classic blktrace formatting, this is possible by\nusing:\n\n[root@f10-1 ~]# echo blk_classic \u003e /t/trace_options\n[root@f10-1 ~]# cat /t/trace\n 8,1 0 3046.491224 305 A WBS 6367 + 8 \u003c- (8,1) 6304\n 8,1 0 3046.491227 305 Q R 6367 + 8 [kjournald]\n 8,1 0 3046.491236 305 G RB 6367 + 8 [kjournald]\n 8,1 0 3046.491239 305 P NS [kjournald]\n 8,1 0 3046.491242 305 I RBS 6367 + 8 [kjournald]\n 8,1 0 3046.491251 305 D WB 6367 + 8 [kjournald]\n 8,1 0 3046.491610 305 U WS [kjournald] 1\n 8,1 0 3046.511914 0 C RS 6367 + 8 [6367]\n[root@f10-1 ~]#\n\nUsing the ftrace standard format allows more flexibility, such\nas the ability of asking for backtraces via trace_options:\n\n[root@f10-1 ~]# echo noblk_classic \u003e /t/trace_options\n[root@f10-1 ~]# echo stacktrace \u003e /t/trace_options\n\n[root@f10-1 ~]# cat /t/trace\n kjournald-305 [000] 3318.826779: 8,1 A WBS 6375 + 8 \u003c- (8,1) 6312\n kjournald-305 [000] 3318.826782:\n \u003c\u003d submit_bio\n \u003c\u003d submit_bh\n \u003c\u003d sync_dirty_buffer\n \u003c\u003d journal_commit_transaction\n \u003c\u003d kjournald\n \u003c\u003d kthread\n \u003c\u003d child_rip\n kjournald-305 [000] 3318.826836: 8,1 Q R 6375 + 8 [kjournald]\n kjournald-305 [000] 3318.826837:\n \u003c\u003d generic_make_request\n \u003c\u003d submit_bio\n \u003c\u003d submit_bh\n \u003c\u003d sync_dirty_buffer\n \u003c\u003d journal_commit_transaction\n \u003c\u003d kjournald\n \u003c\u003d kthread\n\nPlease read the ftrace documentation to use aditional, standardized\ntracing filters such as /d/tracing/trace_cpumask, etc.\n\nSee also /d/tracing/trace_mark to add comments in the trace stream,\nthat is equivalent to the /d/block/sdaN/msg interface.\n\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "54b0d127696aba2ef1ec5430301c968ab539fa0d", "tree": "be6d3ddccce6a17a053ea6e286bf2822bc6ee912", "parents": [ "2150edc6c5cf00f7adb54538b9ea2a3e9cedca3f" ], "author": { "name": "Neil Brown", "email": "neilb@suse.de", "time": "Wed Jan 07 08:55:39 2009 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri Jan 09 21:46:13 2009 +0100" }, "message": "block: fix bug in ptbl lookup cache\n\nNeil writes:\n\n Hi Jens,\n\n I\u0027ve found a little bug for you. It was introduced by\n a6f23657d3072bde6844055bbc2290e497f33fbc\n\n block: add one-hit cache for disk partition lookup\n\n and has the effect of killing my machine whenever I try to assemble\n an md array :-(\n One of the devices in the array has partitions, and mdadm always\n deletes partitions before putting a whole-device in an array (as it\n can cause confusion). The next IO to that device locks the machine.\n I don\u0027t really understand exactly why it locks up, but it happens in\n disk_map_sector_rcu(). This patch fixes it.\n\nWhich is due to a missing clear of the (now) stale partition lookup\ndata. So clear that when we delete a partition.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "3ada8b7e980dac7cc42937d42d90ee51b19204fe", "tree": "6c23e272997cd5b68459c5a92a4490504f1c4be7", "parents": [ "4383fc3d9a98759a1ec3c57a30781e95a4cfcfa9" ], "author": { "name": "Kay Sievers", "email": "kay.sievers@vrfy.org", "time": "Tue Jan 06 10:44:43 2009 -0800" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Tue Jan 06 10:44:43 2009 -0800" }, "message": "block: struct device - replace bus_id with dev_name(), dev_set_name()\n\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nSigned-off-by: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n" }, { "commit": "55e8e30c382d25c34f8aafcc78efec948571a941", "tree": "c044242b34590e3b5ceff03a2891f9afccc95e9e", "parents": [ "ba32929a91fe2c0628f5be62d1597b379c8d3062" ], "author": { "name": "Tejun Heo", "email": "teheo@suse.de", "time": "Mon Nov 10 15:30:47 2008 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Tue Nov 18 15:08:56 2008 +0100" }, "message": "block/md: fix md autodetection\n\nBlock ext devt conversion missed md_autodetect_dev() call in\nrescan_partitions() leaving md autodetect unable to see partitions.\nFix it.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "ba32929a91fe2c0628f5be62d1597b379c8d3062", "tree": "09ea54ed2d2299d25b92fee6a6dde4d7527a3d37", "parents": [ "eb60fa1066622ddb2278732cf61e0c4544e82c6f" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Nov 10 15:29:58 2008 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Tue Nov 18 15:08:56 2008 +0100" }, "message": "block: make add_partition() return pointer to hd_struct\n\nMake add_partition() return pointer to the new hd_struct on success\nand ERR_PTR() value on failure. This change will be used to fix md\nautodetection bug.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "eb60fa1066622ddb2278732cf61e0c4544e82c6f", "tree": "4297d3c2e8876897c51843df148725909a356a08", "parents": [ "4e14e833ac3b97a4aa8803eea49f899adc5bb5f4" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Nov 10 15:28:59 2008 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Tue Nov 18 15:08:55 2008 +0100" }, "message": "block: fix add_partition() error path\n\nPartition stats structure was not freed on devt allocation failure\npath. Fix it.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "572c48921574dbe6dceb958cf965aa962baefde4", "tree": "c1d889288d567cb6b596d10041526d2a8031bae3", "parents": [ "e5eb8caa83a76191feb9705c1a0a689ca260b91e" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Mon Oct 08 13:24:05 2007 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Oct 21 07:49:06 2008 -0400" }, "message": "[PATCH] sanitize blkdev_get() and friends\n\n* get rid of fake struct file/struct dentry in __blkdev_get()\n* merge __blkdev_get() and do_open()\n* get rid of flags argument of blkdev_get()\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "9a1c3542768b5a58e45a9216921cd10a3bae1205", "tree": "c20ffda950db868ec7e1e35aed532962de2ecfd9", "parents": [ "511de73ff09034fb89c8d54bed201a10d057328c" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Feb 22 20:40:24 2008 -0500" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Oct 21 07:48:58 2008 -0400" }, "message": "[PATCH] pass fmode_t to blkdev_put()\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "0fc71e3d6520ba7abad5cfbc9a33db0190e4d5b8", "tree": "4793789ea94ffec2c5169378fd6ed7228fb31eeb", "parents": [ "0e11e342bac31f51ea055b147d20f77b59b9dd2c" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Oct 13 13:27:59 2008 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri Oct 17 08:46:56 2008 +0200" }, "message": "block: add partition attribute for partition number\n\nWith extended devt, finding out the partition number becomes a bit\nmore challenging as subtracting the minor number from that of the\nparent device doesn\u0027t work anymore. The only thing left is parsing\nthe partition name which is brittle and not exactly universal (some\nhave \u0027-\u0027 between the device name and partition number while others\ndon\u0027t). This patch introduced partition attribute which contains the\npartition number of the device. This should make finding partitions\nand its index easier.\n\nThis problem and solution were suggested by H. Peter Anvin.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nCc: H. Peter Anvin \u003chpa@zytor.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "ac0d86f5809598ddcd6bfa0ea8245ccc910e9eac", "tree": "09d874a29ca655faefc5fc5cb637aebd1a732744", "parents": [ "6722e45c2de622eaf5f26d370b9de19632ac7478" ], "author": { "name": "Kay Sievers", "email": "kay.sievers@vrfy.org", "time": "Wed Oct 15 22:04:21 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 16 11:21:47 2008 -0700" }, "message": "block: sanitize invalid partition table entries\n\nWe currently follow blindly what the partition table lies about the\ndisk, and let the kernel create block devices which can not be accessed.\nTrying to identify the device leads to kernel logs full of:\n sdb: rw\u003d0, want\u003d73392, limit\u003d28800\n attempt to access beyond end of device\n\nHere is an example of a broken partition table, where sda2 starts\nbehind the end of the disk, and sdb3 is larger than the entire disk:\n Disk /dev/sdb: 14 MB, 14745600 bytes\n 1 heads, 29 sectors/track, 993 cylinders, total 28800 sectors\n Device Boot Start End Blocks Id System\n /dev/sdb1 29 7800 3886 83 Linux\n /dev/sdb2 37801 45601 3900+ 83 Linux\n /dev/sdb3 15602 73402 28900+ 83 Linux\n /dev/sdb4 23403 28796 2697 83 Linux\n\nThe kernel creates these completely invalid devices, which can not be\naccessed, or may lead to other unpredictable failures:\n grep . /sys/class/block/sdb*/{start,size}\n /sys/class/block/sdb/size:28800\n /sys/class/block/sdb1/start:29\n /sys/class/block/sdb1/size:7772\n /sys/class/block/sdb2/start:37801\n /sys/class/block/sdb2/size:7801\n /sys/class/block/sdb3/start:15602\n /sys/class/block/sdb3/size:57801\n /sys/class/block/sdb4/start:23403\n /sys/class/block/sdb4/size:5394\n\nWith this patch, we ignore partitions which start behind the end of the disk,\nand limit partitions to the end of the disk if they pretend to be larger:\n grep . /sys/class/block/sdb*/{start,size}\n /sys/class/block/sdb/size:28800\n /sys/class/block/sdb1/start:29\n /sys/class/block/sdb1/size:7772\n /sys/class/block/sdb3/start:15602\n /sys/class/block/sdb3/size:13198\n /sys/class/block/sdb4/start:23403\n /sys/class/block/sdb4/size:5394\n\nThese warnings are printed to the kernel log:\n sdb: p2 ignored, start 37801 is behind the end of the disk\n sdb: p3 size 57801 limited to end of disk\n\nSigned-off-by: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nCc: Herton Ronaldo Krzesinski \u003cherton@mandriva.com.br\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "9bc3ffbfbdf71fefda8a261ef8d6fdc388a29b42", "tree": "c6f4ffdb3351a379fc5aee8fd6f91ba6caee83d0", "parents": [ "c3279d1454cdfed02a557d789d8a6d08ab4cbe70" ], "author": { "name": "Andrew Patterson", "email": "andrew.patterson@hp.com", "time": "Thu Sep 04 14:27:30 2008 -0600" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:12 2008 +0200" }, "message": "Check for device resize when rescanning partitions\n\nCheck for device resize in the rescan_partitions() routine. If the device\nhas been resized, the bdev size is set to match. The rescan_partitions()\nroutine is called when opening the device and when calling the\nBLKRRPART ioctl.\n\nSigned-off-by: Andrew Patterson \u003candrew.patterson@hp.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "3e1a7ff8a0a7b948f2684930166954f9e8e776fe", "tree": "0a8642f5cdbc6ddfdd66dc7241c915e57b3cb7ff", "parents": [ "689d6fac40b41c7bf154f362deaf442548e4dc81" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Aug 25 19:56:17 2008 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:08 2008 +0200" }, "message": "block: allow disk to have extended device number\n\nNow that disk and partition handlings are mostly unified, it\u0027s easy to\nallow disk to have extended device number. This patch makes\nadd_disk() use extended device number if disk-\u003eminors is zero. Both\nsd and ide-disk are updated to use this.\n\n* sd_format_disk_name() is implemented which can generically determine\n the drive name. This removes disk number restriction stemming from\n limited device names.\n\n* If sd index goes over SD_MAX_DISKS (which can be increased now BTW),\n sd simply doesn\u0027t initialize minors letting block layer choose\n extended device number.\n\n* If CONFIG_DEBUG_EXT_DEVT is set, both sd and ide-disk always set\n minors to 0 and use extended device numbers.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "540eed5637b766bb1e881ef744c42617760b4815", "tree": "8bdf54967a8290f780216f767291623e67ee7e9b", "parents": [ "074a7aca7afa6f230104e8e65eba3420263714a5" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Aug 25 19:56:15 2008 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:08 2008 +0200" }, "message": "block: make partition array dynamic\n\ndisk-\u003e__part used to be statically allocated to the maximum possible\nnumber of partitions. This patch makes partition array allocation\ndynamic. The added overhead is minimal as only real change is one\nmemory dereference changed to RCU one. This saves both a bit of\nmemory and cpu cycles iterating through unoccupied slots and makes\nincreasing partition limit easier.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "074a7aca7afa6f230104e8e65eba3420263714a5", "tree": "f418313e45bd55be8156c8a3e8f9a216cf63058d", "parents": [ "eddb2e26b5ee3c5da68ba4bf1921ba20e2097bff" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Aug 25 19:56:14 2008 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:08 2008 +0200" }, "message": "block: move stats from disk to part0\n\nMove stats related fields - stamp, in_flight, dkstats - from disk to\npart0 and unify stat handling such that...\n\n* part_stat_*() now updates part0 together if the specified partition\n is not part0. ie. part_stat_*() are now essentially all_stat_*().\n\n* {disk|all}_stat_*() are gone.\n\n* part_round_stats() is updated similary. It handles part0 stats\n automatically and disk_round_stats() is killed.\n\n* part_{inc|dec}_in_fligh() is implemented which automatically updates\n part0 stats for parts other than part0.\n\n* disk_map_sector_rcu() is updated to return part0 if no part matches.\n Combined with the above changes, this makes NULL special case\n handling in callers unnecessary.\n\n* Separate stats show code paths for disk are collapsed into part\n stats show code paths.\n\n* Rename disk_stat_lock/unlock() to part_stat_lock/unlock()\n\nWhile at it, reposition stat handling macros a bit and add missing\nparentheses around macro parameters.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "eddb2e26b5ee3c5da68ba4bf1921ba20e2097bff", "tree": "7a24f3f3cb577f344491dc57ea441060fac9d9a9", "parents": [ "0762b8bde9729f10f8e6249809660ff2ec3ad735" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Aug 25 19:56:13 2008 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:08 2008 +0200" }, "message": "block: kill GENHD_FL_FAIL and use part0-\u003emake_it_fail\n\nGENHD_FL_FAIL for disk is what make_it_fail is for parts. Kill it and\nuse part0-\u003emake_it_fail. Sysfs node handling is unified too.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "0762b8bde9729f10f8e6249809660ff2ec3ad735", "tree": "12aa94ef16b840f713f833c712d335646c816dc1", "parents": [ "4c46501d1659475dc6c89554af6ce7fe6ecf615c" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Aug 25 19:56:12 2008 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:08 2008 +0200" }, "message": "block: always set bdev-\u003ebd_part\n\nTill now, bdev-\u003ebd_part is set only if the bdev was for parts other\nthan part0. This patch makes bdev-\u003ebd_part always set so that code\npaths don\u0027t have to differenciate common handling.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "4c46501d1659475dc6c89554af6ce7fe6ecf615c", "tree": "03bfdf77e2d20c3190ba62532c783ab7f6a2640d", "parents": [ "b7db9956e57c8151b930d5e5fe5c766e6aad3ff7" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Aug 25 19:56:11 2008 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:08 2008 +0200" }, "message": "block: move holder_dir from disk to part0\n\nMove disk-\u003eholder_dir to part0-\u003eholder_dir. Kill now mostly\nsuperflous bdev_get_holder().\n\nWhile at it, kill superflous kobject_get/put() around holder_dir,\nslave_dir and cmd_filter creation and collapse\ndisk_sysfs_add_subdirs() into register_disk(). These serve no purpose\nbut obfuscating the code.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "b7db9956e57c8151b930d5e5fe5c766e6aad3ff7", "tree": "d663a8687fff481abb1498c2ea0eac01ef81cb26", "parents": [ "e56105214943ce5f0901d20e972a7cfd0d1d0656" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Aug 25 19:56:10 2008 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:07 2008 +0200" }, "message": "block: move policy from disk to part0\n\nMove disk-\u003epolicy to part0-\u003epolicy. Implement and use get_disk_ro().\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "e56105214943ce5f0901d20e972a7cfd0d1d0656", "tree": "e7b5abffa47f5bfc664fdbb27025872827514089", "parents": [ "548b10eb2959c96cef6fc29fc96e0931eeb53bc5" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Aug 25 19:56:09 2008 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:07 2008 +0200" }, "message": "block: unify sysfs size node handling\n\nNow that capacity and __dev are moved to part0, part0 and others can\nshare the same method.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "80795aefb76d10c5d698e60c7e7750b5330787da", "tree": "f22a55483cb2fe77580ee1507c1124bc73b93c3d", "parents": [ "b5d0b9df0ba5d9a044f3a21e7544f53d90bd1465" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Aug 25 19:56:07 2008 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:07 2008 +0200" }, "message": "block: move capacity from disk to part0\n\nMove disk-\u003ecapacity to part0-\u003enr_sects and convert all users who\ndirectly accessed the field to use {get|set}_capacity(). This is done\nearly to allow the __dev field to be moved.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "b5d0b9df0ba5d9a044f3a21e7544f53d90bd1465", "tree": "d3347c1cfc59cf5d38c2c9adc2423f9d9b4cf818", "parents": [ "ed9e1982347b36573cd622ee5f4e2a7ccd79b3fd" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Wed Sep 03 09:06:42 2008 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:07 2008 +0200" }, "message": "block: introduce partition 0\n\ngenhd and partition code handled disk and partitions separately. All\ninformation about the whole disk was in struct genhd and partitions in\nstruct hd_struct. However, the whole disk (part0) and other\npartitions have a lot in common and the data structures end up having\ngood number of common fields and thus separate code paths doing the\nsame thing. Also, the partition array was indexed by partno - 1 which\ngets pretty confusing at times.\n\nThis patch introduces partition 0 and makes the partition array\nindexed by partno. Following patches will unify the handling of disk\nand parts piece-by-piece.\n\nThis patch also implements disk_partitionable() which tests whether a\ndisk is partitionable. With coming dynamic partition array change,\nthe most common usage of disk_max_parts() will be testing whether a\ndisk is partitionable and the number of max partitions will become\nmuch less important.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "ed9e1982347b36573cd622ee5f4e2a7ccd79b3fd", "tree": "79d834094d655ec97cfc0a382a9207ebc8e711a5", "parents": [ "870d6656126add8e383645732b03df2b7ccd4f94" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Aug 25 19:56:05 2008 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:07 2008 +0200" }, "message": "block: implement and use {disk|part}_to_dev()\n\nImplement {disk|part}_to_dev() and use them to access generic device\ninstead of directly dereferencing {disk|part}-\u003edev. To make sure no\nuser is left behind, rename generic devices fields to __dev.\n\nThis is in preparation of unifying partition 0 handling with other\npartitions.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "bcce3de1be61e424deef35d1e86e86a35c4b6e65", "tree": "cfdefb52bc37c61dfac160951a9beb86d5cd9ba0", "parents": [ "c9959059161ddd7bf4670cf47367033d6b2f79c4" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Aug 25 19:47:22 2008 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:06 2008 +0200" }, "message": "block: implement extended dev numbers\n\nImplement extended device numbers. A block driver can tell block\nlayer that it wants to use extended device numbers. After the usual\nminor space is used up, block layer automatically allocates devt\u0027s\nfrom EXT_BLOCK_MAJOR.\n\nCurrently only one major number is allocated for this but as the\nallocation is strictly on-demand, ~1mil minor space under it should\nsuffice unless the system actually has more than ~1mil partitions and\nif that ever happens adding more majors to the extended devt area is\neasy.\n\nDue to internal implementation issues, the first partition can\u0027t be\nallocated on the extended area. In other words, genhd-\u003eminors should\nat least be 1. This limitation will be lifted by later changes.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "c9959059161ddd7bf4670cf47367033d6b2f79c4", "tree": "6454db55f8e34361fe472358e10e0c5cfac1e366", "parents": [ "e71bf0d0ee89e51b92776391c5634938236977d5" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Aug 25 19:47:21 2008 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:06 2008 +0200" }, "message": "block: fix diskstats access\n\nThere are two variants of stat functions - ones prefixed with double\nunderbars which don\u0027t care about preemption and ones without which\ndisable preemption before manipulating per-cpu counters. It\u0027s unclear\nwhether the underbarred ones assume that preemtion is disabled on\nentry as some callers don\u0027t do that.\n\nThis patch unifies diskstats access by implementing disk_stat_lock()\nand disk_stat_unlock() which take care of both RCU (for partition\naccess) and preemption (for per-cpu counter access). diskstats access\nshould always be enclosed between the two functions. As such, there\u0027s\nno need for the versions which disables preemption. They\u0027re removed\nand double underbars ones are renamed to drop the underbars. As an\nextra argument is added, there\u0027s no danger of using the old version\nunconverted.\n\ndisk_stat_lock() uses get_cpu() and returns the cpu index and all\ndiskstat functions which access per-cpu counters now has @cpu\nargument to help RT.\n\nThis change adds RCU or preemption operations at some places but also\ncollapses several preemption ops into one at others. Overall, the\nperformance difference should be negligible as all involved ops are\nvery lightweight per-cpu ones.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "e71bf0d0ee89e51b92776391c5634938236977d5", "tree": "9fc62352a40ad388deebdd8ed497cab926cf0470", "parents": [ "f331c0296f2a9fee0d396a70598b954062603015" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Wed Sep 03 09:03:02 2008 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:06 2008 +0200" }, "message": "block: fix disk-\u003epart[] dereferencing race\n\ndisk-\u003epart[] is protected by its matching bdev\u0027s lock. However,\nnon-critical accesses like collecting stats and printing out sysfs and\nproc information used to be performed without any locking. As\npartitions can come and go dynamically, partitions can go away\nunderneath those non-critical accesses. As some of those accesses are\nwrites, this theoretically can lead to silent corruption.\n\nThis patch fixes the race by using RCU for the partition array and dev\nreference counter to hold partitions.\n\n* Rename disk-\u003epart[] to disk-\u003e__part[] to make sure no one outside\n genhd layer proper accesses it directly.\n\n* Use RCU for disk-\u003e__part[] dereferencing.\n\n* Implement disk_{get|put}_part() which can be used to get and put\n partitions from gendisk respectively.\n\n* Iterators are implemented to help iterate through all partitions\n safely.\n\n* Functions which require RCU readlock are marked with _rcu suffix.\n\n* Use disk_put_part() in __blkdev_put() instead of directly putting\n the contained kobject.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "f331c0296f2a9fee0d396a70598b954062603015", "tree": "f74c467d58940131d97d90c4ea549843185e6ef0", "parents": [ "cf771cb5a7b716f3f9e532fd42a1e3a0a75adec5" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Wed Sep 03 09:01:48 2008 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:05 2008 +0200" }, "message": "block: don\u0027t depend on consecutive minor space\n\n* Implement disk_devt() and part_devt() and use them to directly\n access devt instead of computing it from -\u003emajor and -\u003efirst_minor.\n\n Note that all references to -\u003emajor and -\u003efirst_minor outside of\n block layer is used to determine devt of the disk (the part0) and as\n -\u003emajor and -\u003efirst_minor will continue to represent devt for the\n disk, converting these users aren\u0027t strictly necessary. However,\n convert them for consistency.\n\n* Implement disk_max_parts() to avoid directly deferencing\n genhd-\u003eminors.\n\n* Update bdget_disk() such that it doesn\u0027t assume consecutive minor\n space.\n\n* Move devt computation from register_disk() to add_disk() and make it\n the only one (all other usages use the initially determined value).\n\nThese changes clean up the code and will help disk-\u003epart dereference\nfix and extended block device numbers.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "cf771cb5a7b716f3f9e532fd42a1e3a0a75adec5", "tree": "c16cf6adc4d2e51eaee77088ecf126b721f8f3c7", "parents": [ "310a2c1012934f590192377f65940cad4aa72b15" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Wed Sep 03 09:01:09 2008 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:05 2008 +0200" }, "message": "block: make variable and argument names more consistent\n\nIn hd_struct, @partno is used to denote partition number and a number\nof other places use @part to denote hd_struct. Functions use @part\nand @index instead. This causes confusion and makes it difficult to\nuse consistent variable names for hd_struct. Always use @partno if a\nvariable represents partition number.\n\nAlso, print out functions use @f or @part for seq_file argument. Use\n@seqf uniformly instead.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "88e341261ca4d39eec21b212961c77eff51105f7", "tree": "b65315c446ce592e6a0dc521eab9acd92ae61c5e", "parents": [ "ec2cdedf798385a9397ac50dd0405dd658f8529c" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Aug 25 19:30:16 2008 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:04 2008 +0200" }, "message": "block: update add_partition() error handling\n\nd805dda4 tried to fix error case handling in add_partition() but had a\nfew problems.\n\n* disk-\u003epart[] entry is set early and left dangling if operation\n fails.\n\n* Once device initialized, the last put_device() is responsible for\n freeing all the resources. The failure path freed part_stats and p\n regardless of put_device() causing double free.\n\n* holders subdir holds reference to the disk device, so failure path\n should remove it to release resources properly which was missing.\n\nThis patch fixes the above problems and while at it move partition\nslot busy check into add_partition() for completeness and inlines\nholders subdirectory creation. Using separate function for it just\nobfuscates the code.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Abdel Benamrouche \u003cdraconux@gmail.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "ec2cdedf798385a9397ac50dd0405dd658f8529c", "tree": "cd1c44d91a2baa4a56e0ca1ce6b854beb7cb3c39", "parents": [ "def4e38ddda9bef20b69bfa939195c2f79da7979" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Aug 25 19:30:15 2008 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:04 2008 +0200" }, "message": "block: allow deleting zero length partition\n\ndelete_partition() was noop for zero length partition. As the\naddition code allows creating zero lenght partition and deletion is\nassumed to always succeed, this causes memory leak for zero length\npartitions. Allow zero length partitions to end their meaningless\nlives.\n\nWhile at it, allow deleting zero lenght partition via\nBLKPG_DEL_PARTITION ioctl too.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "8d99f83b9478768d3a8d7d1bcd9bd182c75a0447", "tree": "5ccc59694c9dc6dfad58c2e22463f1db55df8825", "parents": [ "42cde4309b8f2671610be049352df2f8716e8809" ], "author": { "name": "Andrew Morton", "email": "akpm@linux-foundation.org", "time": "Sat Sep 13 02:33:25 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Sep 13 14:41:52 2008 -0700" }, "message": "rescan_partitions(): make device capacity errors non-fatal\n\nHerton Krzesinski reports that the error-checking changes in\n04ebd4aee52b06a2c38127d9208546e5b96f3a19 (\"block/ioctl.c and\nfs/partition/check.c: check value returned by add_partition\") cause his\nbuggy USB camera to no longer mount. \"The camera is an Olympus X-840.\nThe original issue comes from the camera itself: its format program\ncreates a partition with an off by one error\".\n\nBuggy devices happen. It is better for the kernel to warn and to proceed\nwith the mount.\n\nReported-by: Herton Ronaldo Krzesinski \u003cherton@mandriva.com.br\u003e\nCc: Abdel Benamrouche \u003cdraconux@gmail.com\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Alan Stern \u003cstern@rowland.harvard.edu\u003e\nCc: David Brownell \u003cdavid-b@pacbell.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "04ebd4aee52b06a2c38127d9208546e5b96f3a19", "tree": "25014f06e7bf53ec0b51d717a6a8d0cfb545d985", "parents": [ "d805dda412346225a50af2d399d958a4bc676c38" ], "author": { "name": "Abdel Benamrouche", "email": "draconux@gmail.com", "time": "Fri Jul 25 01:48:26 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:44 2008 -0700" }, "message": "block/ioctl.c and fs/partition/check.c: check value returned by add_partition()\n\nNow that add_partition() has been aught to propagate errors, let\u0027s check them.\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Abdel Benamrouche \u003cdraconux@gmail.com\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d805dda412346225a50af2d399d958a4bc676c38", "tree": "34ac3439f553627677ec7d3531f40cbd254a6e0c", "parents": [ "abe19b7b822a8fdbe3dbfd6e066d0698b4eefb06" ], "author": { "name": "Abdel Benamrouche", "email": "draconux@gmail.com", "time": "Fri Jul 25 01:48:25 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:44 2008 -0700" }, "message": "fs/partition/check.c: fix return value warning\n\nfs/partitions/check.c:381: warning: ignoring return value of ___device_add___,\n declared with attribute warn_unused_result\n\n[akpm@linux-foundation.org: multiple-return-statements-per-function are evil]\nSigned-off-by: Abdel Benamrouche \u003cdraconux@gmail.com\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "aab0de245150c09e61c30962feb16aacde508dc3", "tree": "cd9cfa1e2c09aeb4cdeee605efa45fef90f0d38a", "parents": [ "f75b1c60fc1e53c4004a79ea0be071aa3318cdcc" ], "author": { "name": "Kay Sievers", "email": "kay.sievers@vrfy.org", "time": "Fri May 02 06:02:41 2008 +0200" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Mon Jul 21 21:54:52 2008 -0700" }, "message": "driver core: remove KOBJ_NAME_LEN define\n\nKobjects do not have a limit in name size since a while, so stop\npretending that they do.\n\nSigned-off-by: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "6bcf19d02a5d7e627fa054f2f10e0a8d830df326", "tree": "5534e02f0141b87ac492ba8d6342469f76f3d907", "parents": [ "da009f39f85a3ee9deeb10f0f05ddd4efdd67020" ], "author": { "name": "Kay Sievers", "email": "kay.sievers@vrfy.org", "time": "Sun Mar 09 21:26:02 2008 +0100" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Sat Apr 19 19:10:24 2008 -0700" }, "message": "block: send disk \"change\" event for rescan_partitions()\n\nUserspace likes to get notified that the disk may have changed, when\nrescan_partitions() is called after partitioning or media change. It will\nmake it possible to update the state of the disk with the \"change\" event,\nbefore the following partition \"add\" events are handled.\n\nCc: David Zeuthen \u003cdavid@fubar.dk\u003e\nSigned-off-by: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "c3c930d93365c495fbc1df28649da7cd4b97f4af", "tree": "ca5c9efbe9b676423ace098c749425dedabd7bef", "parents": [ "28f39d553ee242000e62f6c589ee3dc6de3f9aaa" ], "author": { "name": "Jerome Marchand", "email": "jmarchan@redhat.com", "time": "Fri Feb 08 12:06:21 2008 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri Feb 08 12:42:01 2008 +0100" }, "message": "Enhanced partition statistics: remove old partition statistics\n\nRemoves the now unused old partition statistic code.\n\nSigned-off-by: Jerome Marchand \u003cjmarchan@redhat.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "34e8beac92c27d292938065f8375842d2840767c", "tree": "c2bedbe4901dea130ffec0a1716f4181a087e73b", "parents": [ "a890d62b9e8743341f62548104d1ac29fa8a5a88" ], "author": { "name": "Jerome Marchand", "email": "jmarchan@redhat.com", "time": "Fri Feb 08 11:04:55 2008 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri Feb 08 12:41:58 2008 +0100" }, "message": "Enhanced partition statistics: sysfs\n\nReports enhanced partition statistics in sysfs.\n\nSigned-off-by: Jerome Marchand \u003cjmarchan@redhat.com\u003e\n" }, { "commit": "6f2576af5ba5913538fda7dfb7c6a17771025477", "tree": "ff55bc30686ccec8b0ce22eb3844e78a52aea875", "parents": [ "ea5c48ab2a76559d4af39e1f7de137c0851ac0a5" ], "author": { "name": "Jerome Marchand", "email": "jmarchan@redhat.com", "time": "Fri Feb 08 11:04:35 2008 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri Feb 08 12:41:56 2008 +0100" }, "message": "Enhanced partition statistics: update partition statitics\n\nUpdates the enhanced partition statistics in generic block layer\nbesides the disk statistics.\n\nSigned-off-by: Jerome Marchand \u003cjmarchan@redhat.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "f4a00a2c06bc7802f52969cbdd19f4c680a7cd20", "tree": "a8ee7e8a210ed01f5c9be0e981f1188f7e06bd10", "parents": [ "0afc2edfada50980bec999f94dcea26ebad3dda6" ], "author": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Wed Feb 06 23:33:39 2008 -0800" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Thu Feb 07 11:31:46 2008 -0800" }, "message": "Block: Fix whole_disk attribute bug\n\nThe \"whole_disk\" attribute was not properly converted in the block\ndevice conversion earlier, and if the file is read, bad things can\nhappen. This patch fixes this, making the attribute an empty one,\npreserving the original functionality.\n\nMany thanks to David Miller for finding this, and pointing me in the\nproper place within the block code to look.\n\nAcked-by: David S. Miller \u003cdavem@davemloft.net\u003e\nCc: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "197b12d6796a3bca187f22a8978a33d51e2bcd79", "tree": "706ff3454f03d4aa8ca4d76010479d7f9d2b36f4", "parents": [ "c10997f6575f476ff38442fa18fd4a0d80345f9d" ], "author": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Thu Dec 20 08:13:05 2007 -0800" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Thu Jan 24 20:40:40 2008 -0800" }, "message": "Kobject: convert fs/* from kobject_unregister() to kobject_put()\n\nThere is no need for kobject_unregister() anymore, thanks to Kay\u0027s\nkobject cleanup changes, so replace all instances of it with\nkobject_put().\n\n\nCc: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "edfaa7c36574f1bf09c65ad602412db9da5f96bf", "tree": "d591b80ff9229e4845e41d68e2f4c5aadb017027", "parents": [ "09f82ea92822a7bbb7e816508abbda47ed54a77f" ], "author": { "name": "Kay Sievers", "email": "kay.sievers@vrfy.org", "time": "Mon May 21 22:08:01 2007 +0200" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Thu Jan 24 20:40:36 2008 -0800" }, "message": "Driver core: convert block from raw kobjects to core devices\n\nThis moves the block devices to /sys/class/block. It will create a\nflat list of all block devices, with the disks and partitions in one\ndirectory. For compatibility /sys/block is created and contains symlinks\nto the disks.\n\n /sys/class/block\n |-- sda -\u003e ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda\n |-- sda1 -\u003e ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda1\n |-- sda10 -\u003e ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda10\n |-- sda5 -\u003e ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda5\n |-- sda6 -\u003e ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda6\n |-- sda7 -\u003e ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda7\n |-- sda8 -\u003e ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda8\n |-- sda9 -\u003e ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda9\n `-- sr0 -\u003e ../../devices/pci0000:00/0000:00:1f.2/host1/target1:0:0/1:0:0:0/block/sr0\n\n /sys/block/\n |-- sda -\u003e ../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda\n `-- sr0 -\u003e ../devices/pci0000:00/0000:00:1f.2/host1/target1:0:0/1:0:0:0/block/sr0\n\nSigned-off-by: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "830d3cfb16728e2496edc2985ad8f68025135e37", "tree": "11541c0ac058745a2ab4269b84669a8341ece7ce", "parents": [ "c60b71787982cefcf9fa09aa281fa8c4c685d557" ], "author": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Tue Nov 06 10:36:58 2007 -0800" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Thu Jan 24 20:40:23 2008 -0800" }, "message": "kset: convert block_subsys to use kset_create\n\nDynamically create the kset instead of declaring it statically. We also\nrename block_subsys to block_kset to catch all users of this symbol\nwith a build error instead of an easy-to-ignore build warning.\n\nCc: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "4ff6abff832fbc6cb1d769f6106c841bc2b09f63", "tree": "8458c8e29f53b67912edbe2424e43f95556832ce", "parents": [ "3f9e3ee9dc3605e5c593b5d708494571fb0d3970" ], "author": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Mon Nov 05 22:24:43 2007 -0800" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Thu Jan 24 20:40:11 2008 -0800" }, "message": "kobject: get rid of kobject_add_dir\n\nkobject_create_and_add is the same as kobject_add_dir, so drop\nkobject_add_dir.\n\n\nCc: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "19c38de88a80913351fcacefdb461cc0b585fa87", "tree": "17d2978ce27861926a0d9a3eb49471b9b736f968", "parents": [ "5901d0145c6b9e791bacd049eea11c9db9a3006e" ], "author": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Wed Sep 12 15:06:57 2007 -0700" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Fri Oct 12 14:51:02 2007 -0700" }, "message": "kobjects: fix up improper use of the kobject name field\n\nA number of different drivers incorrect access the kobject name field\ndirectly. This is not correct as the name might not be in the array.\nUse the proper accessor function instead.\n\n" }, { "commit": "dd00cc486ab1c17049a535413d1751ef3482141c", "tree": "d90ff69ea06792b9284f2f2665c96624f121b88a", "parents": [ "3b5ad0797c0e4049001f961a8b58f1d0ce532072" ], "author": { "name": "Yoann Padioleau", "email": "padator@wanadoo.fr", "time": "Thu Jul 19 01:49:03 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Jul 19 10:04:50 2007 -0700" }, "message": "some kmalloc/memset -\u003ekzalloc (tree wide)\n\nTransform some calls to kmalloc/memset to a single kzalloc (or kcalloc).\n\nHere is a short excerpt of the semantic patch performing\nthis transformation:\n\n@@\ntype T2;\nexpression x;\nidentifier f,fld;\nexpression E;\nexpression E1,E2;\nexpression e1,e2,e3,y;\nstatement S;\n@@\n\n x \u003d\n- kmalloc\n+ kzalloc\n (E1,E2)\n ... when !\u003d \\(x-\u003efld\u003dE;\\|y\u003df(...,x,...);\\|f(...,x,...);\\|x\u003dE;\\|while(...) S\\|for(e1;e2;e3) S\\)\n- memset((T2)x,0,E1);\n\n@@\nexpression E1,E2,E3;\n@@\n\n- kzalloc(E1 * E2,E3)\n+ kcalloc(E1,E2,E3)\n\n[akpm@linux-foundation.org: get kcalloc args the right way around]\nSigned-off-by: Yoann Padioleau \u003cpadator@wanadoo.fr\u003e\nCc: Richard Henderson \u003crth@twiddle.net\u003e\nCc: Ivan Kokshaysky \u003cink@jurassic.park.msu.ru\u003e\nAcked-by: Russell King \u003crmk@arm.linux.org.uk\u003e\nCc: Bryan Wu \u003cbryan.wu@analog.com\u003e\nAcked-by: Jiri Slaby \u003cjirislaby@gmail.com\u003e\nCc: Dave Airlie \u003cairlied@linux.ie\u003e\nAcked-by: Roland Dreier \u003crolandd@cisco.com\u003e\nCc: Jiri Kosina \u003cjkosina@suse.cz\u003e\nAcked-by: Dmitry Torokhov \u003cdtor@mail.ru\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nAcked-by: Mauro Carvalho Chehab \u003cmchehab@infradead.org\u003e\nAcked-by: Pierre Ossman \u003cdrzeus-list@drzeus.cx\u003e\nCc: Jeff Garzik \u003cjeff@garzik.org\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nAcked-by: Greg KH \u003cgreg@kroah.com\u003e\nCc: James Bottomley \u003cJames.Bottomley@steeleye.com\u003e\nCc: \"Antonino A. Daplas\" \u003cadaplas@pol.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7b595756ec1f49e0049a9e01a1298d53a7faaa15", "tree": "cd06687ab3e5c7a5a4ef91903dff207a18c4db76", "parents": [ "dbde0fcf9f8f6d477af3c32d9979e789ee680cde" ], "author": { "name": "Tejun Heo", "email": "htejun@gmail.com", "time": "Thu Jun 14 03:45:17 2007 +0900" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Wed Jul 11 16:09:06 2007 -0700" }, "message": "sysfs: kill unnecessary attribute-\u003eowner\n\nsysfs is now completely out of driver/module lifetime game. After\ndeletion, a sysfs node doesn\u0027t access anything outside sysfs proper,\nso there\u0027s no reason to hold onto the attribute owners. Note that\noften the wrong modules were accounted for as owners leading to\naccessing removed modules.\n\nThis patch kills now unnecessary attribute-\u003eowner. Note that with\nthis change, userland holding a sysfs node does not prevent the\nbacking module from being unloaded.\n\nFor more info regarding lifetime rule cleanup, please read the\nfollowing message.\n\n http://article.gmane.org/gmane.linux.kernel/510293\n\n(tweaked by Greg to not delete the field just yet, to make it easier to\nmerge things properly.)\n\nSigned-off-by: Tejun Heo \u003chtejun@gmail.com\u003e\nCc: Cornelia Huck \u003ccornelia.huck@de.ibm.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "19d0e8ce856a7628a630710aed82931ce1c7eb97", "tree": "f2d111b8723417ddc1b136c405923a49d4fce62a", "parents": [ "e729aa16b168fb202d1a20f936028cb7c2a0278d" ], "author": { "name": "Philippe De Muyter", "email": "phdm@macqel.be", "time": "Tue May 08 00:29:15 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue May 08 11:15:09 2007 -0700" }, "message": "partition: add support for sysv68 partitions\n\nAdd support for the Motorola sysv68 disk partition (slices in motorola\ndoc).\n\nSigned-off-by: Philippe De Muyter \u003cphdm@macqel.be\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "6fe6900e1e5b6fa9e5c59aa5061f244fe3f467e2", "tree": "8bbfe5072279227cc50a941ad4813908082426a1", "parents": [ "714b8171af9c930a59a0da8f6fe50518e70ab035" ], "author": { "name": "Nick Piggin", "email": "npiggin@suse.de", "time": "Sun May 06 14:49:04 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon May 07 12:12:51 2007 -0700" }, "message": "mm: make read_cache_page synchronous\n\nEnsure pages are uptodate after returning from read_cache_page, which allows\nus to cut out most of the filesystem-internal PageUptodate calls.\n\nI didn\u0027t have a great look down the call chains, but this appears to fixes 7\npossible use-before uptodate in hfs, 2 in hfsplus, 1 in jfs, a few in\necryptfs, 1 in jffs2, and a possible cleared data overwritten with readpage in\nblock2mtd. All depending on whether the filler is async and/or can return\nwith a !uptodate page.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "823bccfc4002296ba88c3ad0f049e1abd8108d30", "tree": "5338ae0b32409446af4cd00c5107d9405d5bf0b6", "parents": [ "2609e7b9bebfd433254c02538ba803dc516ff674" ], "author": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Fri Apr 13 13:15:19 2007 -0700" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Wed May 02 18:57:59 2007 -0700" }, "message": "remove \"struct subsystem\" as it is no longer needed\n\nWe need to work on cleaning up the relationship between kobjects, ksets and\nktypes. The removal of \u0027struct subsystem\u0027 is the first step of this,\nespecially as it is not really needed at all.\n\nThanks to Kay for fixing the bugs in this patch.\n\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "b74a2f0913694556a027795d2954d30523fac4c5", "tree": "c99e002949bc22db27efa4e635e1bbbf7138d1df", "parents": [ "b257bc051f06607beb3004d9a1c297085e728bec" ], "author": { "name": "suzuki", "email": "suzuki@in.ibm.com", "time": "Fri Mar 16 13:38:25 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Mar 16 19:25:05 2007 -0700" }, "message": "[PATCH] fix rescan_partitions to return errors properly\n\nThe only error code which comes from the partition checkers is -1, when\nthey finds an EIO. As per the discussion, ENOMEM values were ignored,\nas they might scare the users.\n\nSo, with the current code, we end up returning -1 and not EIO for the\nioctl() calls. Which doesn\u0027t give any clue to the user of what went\nwrong.\n\nSigned-off-by: Suzuki K P \u003csuzuki@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "9bebff6ca5871e07b665cdaf71028ea21eb0bf0e", "tree": "ff8009fa4e8a53a547e29563cbc58985f7454a41", "parents": [ "f6dfb4fd7dd94429ef1d5233688aaed2a63f856b" ], "author": { "name": "suzuki", "email": "suzuki@in.ibm.com", "time": "Wed Mar 07 20:41:24 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Mar 08 07:38:22 2007 -0800" }, "message": "[PATCH] check_partition(): fix error check\n\nFix inverted check introduced in 57881dd9df40b76dc7fc6a0d13fd75f337accb32 \"Fix\ncheck_partition routines\".\n\nSigned-off-by: Suzuki K P \u003csuzuki@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b92be9f1ecd3c8b16e9bb22d55bb97b3d89f091a", "tree": "6f5b561fd2268214d3b511f6dc8e0c1a598f24b7", "parents": [ "1350770112bd9bd5696cb52deb712370012d80e0" ], "author": { "name": "Mariusz Kozlowski", "email": "m.kozlowski@tuxland.pl", "time": "Wed Feb 14 21:03:39 2007 +0100" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Fri Feb 16 15:19:17 2007 -0800" }, "message": "Driver: remove redundant kobject_unregister checks\n\nHere is a patch that removes all redundant kobject_unregister argument checks.\n\nSigned-off-by: Mariusz Kozlowski \u003cm.kozlowski@tuxland.pl\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "d18d7682c18b617f523df6beea5ea0bd396ed0bd", "tree": "8e005fee2e13134e9ebdd1a3b71ef72b84351b19", "parents": [ "66efc5a7e3061c3597ac43a8bb1026488d57e66b" ], "author": { "name": "Fabio Massimo Di Nitto", "email": "fabbione@ubuntu.com", "time": "Sat Feb 10 23:50:00 2007 -0800" }, "committer": { "name": "David S. Miller", "email": "davem@davemloft.net", "time": "Sat Feb 10 23:50:00 2007 -0800" }, "message": "[PARTITION]: Add whole_disk attribute.\n\nSome partitioning systems create special partitions that\nspan the entire disk. One example are Sun partitions, and\nthis whole-disk partition exists to tell the firmware the\nextent of the entire device so it can load the boot block\nand do other things.\n\nSuch partitions should not be treated as normal partitions,\nbecause all the other partitions overlap this whole-disk one.\nSo we\u0027d see multiple instances of the same UUID etc. which\nwe do not want. udev and friends can thus search for this\n\u0027whole_disk\u0027 attribute and use it to decide to ignore the\npartition.\n\nSigned-off-by: Fabio Massimo Di Nitto \u003cfabbione@ubuntu.com\u003e\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "c17bb4951752d3e0f49cd1ea9d2e868422f9e0d6", "tree": "dcd23ef706ba09edae462528dc11a507b1d17af6", "parents": [ "933e312e73f8fc39652bd4d216a5393cc3a014b9" ], "author": { "name": "Akinobu Mita", "email": "akinobu.mita@gmail.com", "time": "Fri Dec 08 02:39:46 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Fri Dec 08 08:29:02 2006 -0800" }, "message": "[PATCH] fault-injection capability for disk IO\n\nThis patch provides fault-injection capability for disk IO.\n\nBoot option:\n\nfail_make_request\u003d\u003cprobability\u003e,\u003cinterval\u003e,\u003cspace\u003e,\u003ctimes\u003e\n\n\t\u003cinterval\u003e -- specifies the interval of failures.\n\n\t\u003cprobability\u003e -- specifies how often it should fail in percent.\n\n\t\u003cspace\u003e -- specifies the size of free space where disk IO can be issued\n\t\t safely in bytes.\n\n\t\u003ctimes\u003e -- specifies how many times failures may happen at most.\n\nDebugfs:\n\n/debug/fail_make_request/interval\n/debug/fail_make_request/probability\n/debug/fail_make_request/specifies\n/debug/fail_make_request/times\n\nExample:\n\n\tfail_make_request\u003d10,100,0,-1\n\techo 1 \u003e /sys/blocks/hda/hda1/make-it-fail\n\ngeneric_make_request() on /dev/hda1 fails once per 10 times.\n\nCc: Jens Axboe \u003caxboe@suse.de\u003e\nSigned-off-by: Akinobu Mita \u003cakinobu.mita@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "57881dd9df40b76dc7fc6a0d13fd75f337accb32", "tree": "088010827c14fbe75628c64848839616175bb9d6", "parents": [ "5127d002f9769ba6b1691de78dd3a5c14635e183" ], "author": { "name": "Suzuki K P", "email": "suzuki@in.ibm.com", "time": "Wed Dec 06 20:35:16 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Thu Dec 07 08:39:30 2006 -0800" }, "message": "[PATCH] Fix check_partition routines\n\ncheck_partition() stops its probe once it hits an I/O error from the\npartition checkers. This would prevent the actual partition checker\ngetting a chance to verify the partition.\n\nSo this patch lets check_partition() continue probing untill it hits a\nsuccess while recording the I/O error which might have been reported by the\nchecking routines.\n\nAlso, it does some cleanup of the partition methods for ibm, atari and\namiga to return -1 upon hitting an I/O error.\n\nSigned-off-by: Suzuki K P \u003csuzuki@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "5127d002f9769ba6b1691de78dd3a5c14635e183", "tree": "479d47c850f5f10b9aa7e2d5ec6e9743820bc781", "parents": [ "1ecb9c0f3c9ef6af77c39a9f584940691847ccf4" ], "author": { "name": "Suzuki Kp", "email": "suzuki@in.ibm.com", "time": "Wed Dec 06 20:35:14 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Thu Dec 07 08:39:30 2006 -0800" }, "message": "[PATCH] fix rescan_partitions to return errors properly\n\nThe current rescan_partition implementation ignores the errors that comes from\nthe lower layer. It reports success for unknown partitions as well as I/O\nerror cases while reading the partition information.\n\nThe unknown partition is not (and will not be) considered as an error in the\nkernel, since there are legal users of it (e.g, members of a RAID5 MD Device\nor a new disk which is not partitioned at all ). Changing this behaviour\nwould scare the user about a serious problem with their disk and is not\nrecommended. Thus for both \"unknown partitions\" to the Linux (eg., DEC\nVMS,Novell Netware) and the legal users of NULL partition, would still be\nreported as \"SUCCESS\".\n\nThe patch attached here, scares the user about something which he does need to\nworry about. i.e, returning -EIO on disk I/O errors while reading the\npartition information.\n\nSigned-off-by: Suzuki K P \u003csuzuki@in.ibm.com\u003e\nCc: Erik Mouw \u003cerik@harddisk-recovery.com\u003e\nCc: Christoph Hellwig \u003chch@lst.de\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" } ], "next": "eee44cca665aa1a5663e6a00c2bdfc275739dac5" }