)]}' { "log": [ { "commit": "3d0a8d10cfb4cc3d1877c29a866ee7d8a46aa2fa", "tree": "11a85044d1472f5972ae47ce10a2f446ad981e9f", "parents": [ "b4fdcb02f1e39c27058a885905bd0277370ba441", "a0eda62552eba4e1f92d5354bb65c68fb6b45f87" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Nov 04 17:22:14 2011 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Nov 04 17:22:14 2011 -0700" }, "message": "Merge branch \u0027for-3.2/drivers\u0027 of git://git.kernel.dk/linux-block\n\n* \u0027for-3.2/drivers\u0027 of git://git.kernel.dk/linux-block: (30 commits)\n virtio-blk: use ida to allocate disk index\n hpsa: add small delay when using PCI Power Management to reset for kump\n cciss: add small delay when using PCI Power Management to reset for kump\n xen/blkback: Fix two races in the handling of barrier requests.\n xen/blkback: Check for proper operation.\n xen/blkback: Fix the inhibition to map pages when discarding sector ranges.\n xen/blkback: Report VBD_WSECT (wr_sect) properly.\n xen/blkback: Support \u0027feature-barrier\u0027 aka old-style BARRIER requests.\n xen-blkfront: plug device number leak in xlblk_init() error path\n xen-blkfront: If no barrier or flush is supported, use invalid operation.\n xen-blkback: use kzalloc() in favor of kmalloc()+memset()\n xen-blkback: fixed indentation and comments\n xen-blkfront: fix a deadlock while handling discard response\n xen-blkfront: Handle discard requests.\n xen-blkback: Implement discard requests (\u0027feature-discard\u0027)\n xen-blkfront: add BLKIF_OP_DISCARD and discard request struct\n drivers/block/loop.c: remove unnecessary bdev argument from loop_clr_fd()\n drivers/block/loop.c: emit uevent on auto release\n drivers/block/cpqarray.c: use pci_dev-\u003erevision\n loop: always allow userspace partitions and optionally support automatic scanning\n ...\n\nFic up trivial header file includsion conflict in drivers/block/loop.c\n" }, { "commit": "a72c5e5eb738033938ab30d6a634b74d1d060f10", "tree": "72cea6d75a62f7003d55f8a754c2d17149ada85f", "parents": [ "76e4e12ff2b3ef86773989fd897b194eb38016e6" ], "author": { "name": "Nao Nishijima", "email": "nao.nishijima.xt@hitachi.com", "time": "Thu Aug 25 18:04:06 2011 +0900" }, "committer": { "name": "James Bottomley", "email": "JBottomley@Parallels.com", "time": "Mon Aug 29 00:16:19 2011 -0700" }, "message": "[SCSI] genhd: add a new attribute \"alias\" in gendisk\n\nThis patch allows the user to set an \"alias\" of the disk via sysfs interface.\n\nThis patch only adds a new attribute \"alias\" in gendisk structure.\nTo show the alias instead of the device name in kernel messages,\nwe need to revise printk messages and use alias_name() in them.\n\nExample:\n(current) printk(\"disk name is %s\\n\", disk-\u003edisk_name);\n(new) printk(\"disk name is %s\\n\", alias_name(disk));\n\nUsers can use alphabets, numbers, \u0027-\u0027 and \u0027_\u0027 in \"alias\" attribute. A disk can\nhave an \"alias\" which length is up to 255 bytes. This attribute is write-once.\n\nSuggested-by: James Bottomley \u003cJames.Bottomley@HansenPartnership.com\u003e\nSuggested-by: Jon Masters \u003cjcm@redhat.com\u003e\nSigned-off-by: Nao Nishijima \u003cnao.nishijima.xt@hitachi.com\u003e\nSigned-off-by: James Bottomley \u003cJBottomley@Parallels.com\u003e\n" }, { "commit": "d27769ec3df1a8de9ca450d2dcd72d1ab259ba32", "tree": "f17c064e0d8ac26fa80c1c72dccaca053bb55e94", "parents": [ "322a8b034003c0d46d39af85bf24fee27b902f48" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Tue Aug 23 20:01:04 2011 +0200" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Tue Aug 23 20:01:04 2011 +0200" }, "message": "block: add GENHD_FL_NO_PART_SCAN\n\nThere are cases where suppressing partition scan is useful - e.g. for\nlo devices and pseudo SATA devices which advertise to be a disk but\nget upset on partition scan (some port multiplier control devices show\nsuch behavior).\n\nThis patch adds GENHD_FL_NO_PART_SCAN which suppresses partition scan\nregardless of the number of possible partitions. disk_partitionable()\nis renamed to disk_part_scan_enabled() as suppressing partition scan\ndoesn\u0027t imply the device can\u0027t be partitioned using\nBLKPG_ADD/DEL_PARTITION calls from userland. show_partition() now\ndirectly tests disk_max_parts() to maintain backward-compatibility.\n\n-v2: Updated to make it clear that only partition scan is suppressed\n not partitioning itself as suggested by Kay Sievers.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\n" }, { "commit": "85ef06d1d252f6a2e73b678591ab71caad4667bb", "tree": "dc5cbc4f2e54f5b5b3f8653a595799e5fe0f2f18", "parents": [ "04bf7869ca0fd12009aee301cac2264a36df4d98" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Fri Jul 01 16:17:47 2011 +0200" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Fri Jul 01 16:17:47 2011 +0200" }, "message": "block: flush MEDIA_CHANGE from drivers on close(2)\n\nCurrently, only open(2) is defined as the \u0027clearing\u0027 point. It has\ntwo roles - first, it\u0027s an acknowledgement from userland indicating\nthat the event has been received and kernel can clear pending states\nand proceed to generate more events. Secondly, it\u0027s passed on to\ndevice drivers as a hint indicating that a synchronization point has\nbeen reached and it might want to take a deeper look at the device.\n\nThe latter currently is only used by sr which uses two different\nmechanisms - GET_EVENT_MEDIA_STATUS_NOTIFICATION and TEST_UNIT_READY\nto discover events, where the former is lighter weight and safe to be\nused repeatedly but may not provide full coverage. Among other\nthings, GET_EVENT can\u0027t detect media removal while TUR can.\n\nThis patch makes close(2) - blkdev_put() - indicate clearing hint for\nMEDIA_CHANGE to drivers. disk_check_events() is renamed to\ndisk_flush_events() and updated to take @mask for events to flush\nwhich is or\u0027d to ev-\u003eclearing and will be passed to the driver on the\nnext -\u003echeck_events() invocation.\n\nThis change makes sr generate MEDIA_CHANGE when media is ejected from\nuserland - e.g. with eject(1).\n\nNote: Given the current usage, it seems @clearing hint is needlessly\ncomplex. disk_clear_events() can simply clear all events and the hint\ncan be boolean @flush.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Kay Sievers \u003ckay.sievers@vrfy.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": "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": "d4dc210f69bcb0b4bef5a83b1c323817be89bad1", "tree": "58774a27fa6faff1260a416a86d2c121f0013431", "parents": [ "1196f8b814f32cd04df334abf47648c2a9fd8324" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Thu Apr 21 20:54:46 2011 +0200" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Thu Apr 21 20:54:46 2011 +0200" }, "message": "block: don\u0027t block events on excl write for non-optical devices\n\nDisk event code automatically blocks events on excl write. This is\nprimarily to avoid issuing polling commands while burning is in\nprogress. This behavior doesn\u0027t fit other types of devices with\nremoveable media where polling commands don\u0027t have adverse side\neffects and door locking usually doesn\u0027t exist.\n\nThis patch introduces new genhd flag which controls the auto-blocking\nbehavior and uses it to enable auto-blocking only on optical devices.\n\nNote for stable: 2.6.38 and later only\n\nCc: stable@kernel.org\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nReported-by: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\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": "77ea887e433ad8389d416826936c110fa7910f80", "tree": "ac9d32aabcebf5a465acae2066b12c9335b5ca6f", "parents": [ "d2bf1b6723ed0eab378363649d15b7893bf14e91" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Wed Dec 08 20:57:37 2010 +0100" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Thu Dec 16 17:53:38 2010 +0100" }, "message": "implement in-kernel gendisk events handling\n\nCurrently, media presence polling for removeable block devices is done\nfrom userland. There are several issues with this.\n\n* Polling is done by periodically opening the device. For SCSI\n devices, the command sequence generated by such action involves a\n few different commands including TEST_UNIT_READY. This behavior,\n while perfectly legal, is different from Windows which only issues\n single command, GET_EVENT_STATUS_NOTIFICATION. Unfortunately, some\n ATAPI devices lock up after being periodically queried such command\n sequences.\n\n* There is no reliable and unintrusive way for a userland program to\n tell whether the target device is safe for media presence polling.\n For example, polling for media presence during an on-going burning\n session can make it fail. The polling program can avoid this by\n opening the device with O_EXCL but then it risks making a valid\n exclusive user of the device fail w/ -EBUSY.\n\n* Userland polling is unnecessarily heavy and in-kernel implementation\n is lighter and better coordinated (workqueue, timer slack).\n\nThis patch implements framework for in-kernel disk event handling,\nwhich includes media presence polling.\n\n* bdops-\u003echeck_events() is added, which supercedes -\u003emedia_changed().\n It should check whether there\u0027s any pending event and return if so.\n Currently, two events are defined - DISK_EVENT_MEDIA_CHANGE and\n DISK_EVENT_EJECT_REQUEST. -\u003echeck_events() is guaranteed not to be\n called parallelly.\n\n* gendisk-\u003eevents and -\u003easync_events are added. These should be\n initialized by block driver before passing the device to add_disk().\n The former contains the mask of all supported events and the latter\n the mask of all events which the device can report without polling.\n /sys/block/*/events[_async] export these to userland.\n\n* Kernel parameter block.events_dfl_poll_msecs controls the system\n polling interval (default is 0 which means disable) and\n /sys/block/*/events_poll_msecs control polling intervals for\n individual devices (default is -1 meaning use system setting). Note\n that if a device can report all supported events asynchronously and\n its polling interval isn\u0027t explicitly set, the device won\u0027t be\n polled regardless of the system polling interval.\n\n* If a device is opened exclusively with write access, event checking\n is automatically disabled until all write exclusive accesses are\n released.\n\n* There are event \u0027clearing\u0027 events. For example, both of currently\n defined events are cleared after the device has been successfully\n opened. This information is passed to -\u003echeck_events() callback\n using @clearing argument as a hint.\n\n* Event checking is always performed from system_nrt_wq and timer\n slack is set to 25% for polling.\n\n* Nothing changes for drivers which implement -\u003emedia_changed() but\n not -\u003echeck_events(). Going forward, all drivers will be converted\n to -\u003echeck_events() and -\u003emedia_change() will be dropped.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nCc: Jan Kara \u003cjack@suse.cz\u003e\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": "dddd9dc340ae1a41d90e084529ca979c77c4ecfe", "tree": "7ab2dba891308a0c9209d71ecc8d620260b8674b", "parents": [ "e4ea0c16a85d221ebcc3a21f32e321440459e0fc" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Wed Dec 08 20:57:35 2010 +0100" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Thu Dec 16 17:53:38 2010 +0100" }, "message": "block: kill genhd_media_change_notify()\n\nThere\u0027s no user of the facility. Kill it.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.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": "e9dd2b6837e26fe202708cce5ea4bb4ee3e3482e", "tree": "f42fd892495bfc4cbb740d06b016d267c9c42d00", "parents": [ "4f3a29dadaf999a273f1e7fe2476595d0283eef3", "b4627321e18582dcbdeb45d77df29d3177107c65" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Oct 22 17:00:32 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Oct 22 17:00:32 2010 -0700" }, "message": "Merge branch \u0027for-2.6.37/core\u0027 of git://git.kernel.dk/linux-2.6-block\n\n* \u0027for-2.6.37/core\u0027 of git://git.kernel.dk/linux-2.6-block: (39 commits)\n cfq-iosched: Fix a gcc 4.5 warning and put some comments\n block: Turn bvec_k{un,}map_irq() into static inline functions\n block: fix accounting bug on cross partition merges\n block: Make the integrity mapped property a bio flag\n block: Fix double free in blk_integrity_unregister\n block: Ensure physical block size is unsigned int\n blkio-throttle: Fix possible multiplication overflow in iops calculations\n blkio-throttle: limit max iops value to UINT_MAX\n blkio-throttle: There is no need to convert jiffies to milli seconds\n blkio-throttle: Fix link failure failure on i386\n blkio: Recalculate the throttled bio dispatch time upon throttle limit change\n blkio: Add root group to td-\u003etg_list\n blkio: deletion of a cgroup was causes oops\n blkio: Do not export throttle files if CONFIG_BLK_DEV_THROTTLING\u003dn\n block: set the bounce_pfn to the actual DMA limit rather than to max memory\n block: revert bad fix for memory hotplug causing bounces\n Fix compile error in blk-exec.c for !CONFIG_DETECT_HUNG_TASK\n block: set the bounce_pfn to the actual DMA limit rather than to max memory\n block: Prevent hang_check firing during long I/O\n cfq: improve fsync performance for small files\n ...\n\nFix up trivial conflicts due to __rcu sparse annotation in include/linux/genhd.h\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": "4d2deb40b20c2608486598364e63e37b09a9ac2f", "tree": "cf61f5492623fa69ddc9a0573b50d52b002c2f85", "parents": [ "d2c2486bc8e185548490e8edbc84d185de9eaff1" ], "author": { "name": "Arnd Bergmann", "email": "arnd@arndb.de", "time": "Wed Feb 24 20:01:56 2010 +0100" }, "committer": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Thu Aug 19 17:18:03 2010 -0700" }, "message": "kernel: __rcu annotations\n\nThis adds annotations for RCU operations in core kernel components\n\nSigned-off-by: Arnd Bergmann \u003carnd@arndb.de\u003e\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: Al Viro \u003cviro@ZenIV.linux.org.uk\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nReviewed-by: Josh Triplett \u003cjosh@joshtriplett.org\u003e\n" }, { "commit": "97fedbbe1046b3118f49df249840ca21041eefe4", "tree": "d888fb0e15600a9bfd08706cee144f2b179e6070", "parents": [ "c77a5710b7e23847bfdb81fcaa10b585f65c960a" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Tue Mar 16 08:55:32 2010 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Tue Mar 16 08:55:32 2010 +0100" }, "message": "Remove GENHD_FL_DRIVERFS\n\nThis flag is not used, so best discarded.\n\nSigned-off-by: NeilBrown \u003cneilb@suse.de\u003e\n--\nHi Jens,\n I came across this recently - these are the only two occurances\n of \"GENHD_FL_DRIVERFS\" in the kernel, so it cannot be needed.\nNeilBrown\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "43cf38eb5cea91245502df3fcee4dbfc1c74dd1c", "tree": "a58ea87af1f07b8aed4941db074f44103f321f6e", "parents": [ "ab386128f20c44c458a90039ab1bdc265ac474c9" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Tue Feb 02 14:38:57 2010 +0900" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Wed Feb 17 11:17:38 2010 +0900" }, "message": "percpu: add __percpu sparse annotations to core kernel subsystems\n\nAdd __percpu sparse annotations to core subsystems.\n\nThese annotations are to make sparse consider percpu variables to be\nin a different address space and warn if accessed without going\nthrough percpu accessors. This patch doesn\u0027t affect normal builds.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nReviewed-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nAcked-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: Jens Axboe \u003caxboe@kernel.dk\u003e\nCc: linux-mm@kvack.org\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Dipankar Sarma \u003cdipankar@in.ibm.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Eric Biederman \u003cebiederm@xmission.com\u003e\n" }, { "commit": "7af92f8754b87bc78cbfd447d5f4096b25c46682", "tree": "c165aba0edf277d5d2a4865641705365c14dd726", "parents": [ "ce289321b7dc1eb108e3df0dec872b7429ef49f7" ], "author": { "name": "Stephen Hemminger", "email": "shemminger@vyatta.com", "time": "Wed Jan 06 15:45:55 2010 -0800" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Mon Jan 11 14:32:44 2010 +0100" }, "message": "genhd: overlapping variable definition\n\nThis fixes the sparse warning:\nfs/ext4/super.c:2390:40: warning: symbol \u0027i\u0027 shadows an earlier one\nfs/ext4/super.c:2368:22: originally declared here\n\nUsing \u0027i\u0027 in a macro is dubious practice.\n\nSigned-off-by: Stephen Hemminger \u003cshemminger@vyatta.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": "e454cea20bdcff10ee698d11b8882662a0153a47", "tree": "f44581fe57787aef0a4f4dc00993a90ea8e688f6", "parents": [ "78f28b7c555359c67c2a0d23f7436e915329421e" ], "author": { "name": "Kay Sievers", "email": "kay.sievers@vrfy.org", "time": "Fri Sep 18 23:01:12 2009 +0200" }, "committer": { "name": "Live-CD User", "email": "linux@linux.site", "time": "Sat Sep 19 12:50:38 2009 -0700" }, "message": "Driver-Core: extend devnode callbacks to provide permissions\n\nThis allows subsytems to provide devtmpfs with non-default permissions\nfor the device node. Instead of the default mode of 0600, null, zero,\nrandom, urandom, full, tty, ptmx now have a mode of 0666, which allows\nnon-privileged processes to access standard device nodes in case no\nother userspace process applies the expected permissions.\n\nThis also fixes a wrong assignment in pktcdvd and a checkpatch.pl complain.\n\nSigned-off-by: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\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": "b03f38b685e2e1db174fb8982930e789a516f414", "tree": "8ad84738e433409647a1450a991dba1ba90d7921", "parents": [ "f7a386c5b8ff34cd84ae922603d1c6f9d234edee" ], "author": { "name": "Kay Sievers", "email": "kay.sievers@vrfy.org", "time": "Thu Apr 30 15:23:42 2009 +0200" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Mon Jun 15 21:30:25 2009 -0700" }, "message": "Driver Core: block: add nodename support for block drivers.\n\nThis adds support for block drivers to report their requested nodename\nto userspace. It also updates a number of block drivers to provide the\nneeded subdirectory and device name to be used for them.\n\nSigned-off-by: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nSigned-off-by: Jan Blunck \u003cjblunck@suse.de\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\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": "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": "71982a409f12c50d011325a4471aa20666bb908d", "tree": "d457415cc6c50b386a6876acf0abc4472f0e5630", "parents": [ "a9e9dc24bbc3e084450a22cf4fb82f5f5d4cbeea" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Fri Apr 17 08:34:48 2009 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Wed Apr 22 08:35:10 2009 +0200" }, "message": "block: include empty disks in /proc/diskstats\n\n/proc/diskstats used to show stats for all disks whether they\u0027re\nzero-sized or not and their non-zero partitions. Commit\n074a7aca7afa6f230104e8e65eba3420263714a5 accidentally changed the\nbehavior such that it doesn\u0027t print out zero sized disks. This patch\nimplements DISK_PITER_INCL_EMPTY_PART0 flag to partition iterator and\nuses it in diskstats_show() such that empty part0 is shown in\n/proc/diskstats.\n\nReported and bisectd by Dianel Collins.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nReported-by: Daniel Collins \u003csolemnwarning@solemnwarning.no-ip.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "d399228646e26db315d6233bed65ec9d08c57f57", "tree": "cce0d9935402ba38cb5d2dc2a71342720a9a013e", "parents": [ "6d2a78e783416ba99e36beb1d4395b785b34e867" ], "author": { "name": "Petros Koutoupis", "email": "pkoutoupis@hydrasystemsllc.com", "time": "Wed Mar 11 10:49:35 2009 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Tue Mar 24 12:35:17 2009 +0100" }, "message": "block: genhd.h cleanup patch\n\nIn include/linux/genhd.h: Line 335 has a comment that needs to be updated from: /* drivers/block/ll_rw_blk.c */ to /* block/blk-core.c */. Also as of kernel 2.6.16, the function definition for get_blkdev_list was removed from block/genhd.c but the function declaration is still present on line 339. This patch addresses both those fixes, by updating the comment and removing the declaration.\n\nSigned-off-by: Petros Koutoupis \u003cpkoutoupis@hydrasystemsllc.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "32ca163c9cdb33151d79e95a7cf244f62b5d4418", "tree": "592f46b5a06ab48354652a71588020b858627428", "parents": [ "50e174931051bf4849cd7931667bb0a4d681ff60" ], "author": { "name": "Petros Koutoupis", "email": "pkoutoupis@hydrasystemsllc.com", "time": "Tue Mar 10 08:25:54 2009 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Tue Mar 24 12:35:17 2009 +0100" }, "message": "block: genhd.h comment needs updating\n\nThe include/linux/genhd.h file, on line 338-352 declares some function\nprototypes in which the comment on line 338 states that the definition of\nthese prototypes are to be found at drivers/block/genhd.c. The problem is\nthat genhd.c has been relocated to block/genhd.c. See attached patch to\ncorrect this minor cosmetic typo.\n\nSigned-off-by: Petros Koutoupis \u003cpkoutoupis@hydrasystemsllc.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "a6f23657d3072bde6844055bbc2290e497f33fbc", "tree": "bd96916615d04228cc9492ae198ed5012d5ee86a", "parents": [ "30e0dc28bff9dc456cdfc2aae4aca78b8b1a1cec" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri Oct 24 12:52:42 2008 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Mon Dec 29 08:29:51 2008 +0100" }, "message": "block: add one-hit cache for disk partition lookup\n\ndisk_map_sector_rcu() returns a partition from a sector offset,\nwhich we use for IO statistics on a per-partition basis. The\nlookup itself is an O(N) list lookup, where N is the number of\npartitions. This actually hurts performance quite a bit, even\non the lower end partitions. On higher numbered partitions,\nit can get pretty bad.\n\nSolve this by adding a one-hit cache for partition lookup.\nThis makes the lookup O(1) for the case where we do most IO to\none partition. Even for mixed partition workloads, amortized cost\nis pretty close to O(1) since the natural IO batching makes the\none-hit cache last for lots of IOs.\n\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": "31d85ab28e71b0c938e0ef48af45747e80d99b53", "tree": "1cd97bee97abb008dd3591da2a001e3e85356fb6", "parents": [ "5c9fe6281b75832e8d2555ec8700ea763d9a865e" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Mon Oct 06 12:55:38 2008 +0400" }, "committer": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Thu Oct 23 17:57:37 2008 +0400" }, "message": "proc: move /proc/diskstats boilerplate to block/genhd.c\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nAcked-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "f500975a3f3ecf3611d79f1d933906753460b9f2", "tree": "df3728998ca1638ecbccf4ab6f401f9a2cbdba88", "parents": [ "8591cf43224980a0bc9216a4e50b0a740f8cba35" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Sat Oct 04 23:53:21 2008 +0400" }, "committer": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Thu Oct 23 15:07:31 2008 +0400" }, "message": "proc: move rest of /proc/partitions code to block/genhd.c\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nAcked-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": "689d6fac40b41c7bf154f362deaf442548e4dc81", "tree": "5989dc5767f657272194ee8c7d69c6db1e62dab7", "parents": [ "540eed5637b766bb1e881ef744c42617760b4815" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Aug 25 19:56:16 2008 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:08 2008 +0200" }, "message": "block: replace @ext_minors with GENHD_FL_EXT_DEVT\n\nWith previous changes, it\u0027s meaningless to limit the number of\npartitions. Replace @ext_minors with GENHD_FL_EXT_DEVT such that\nsetting the flag allows the disk to have maximum number of allowed\npartitions (only limited by the number of entries in parsed_partitions\nas determined by MAX_PART constant).\n\nThis kills not-too-pretty alloc_disk_ext[_node]() functions and makes\n@minors parameter to alloc_disk[_node]() unnecessary. The parameter\nis left alone to avoid disturbing the users.\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": "548b10eb2959c96cef6fc29fc96e0931eeb53bc5", "tree": "7166bc04336b80a69f87a9add097919b418f4f43", "parents": [ "80795aefb76d10c5d698e60c7e7750b5330787da" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Fri Aug 29 09:01:47 2008 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:07 2008 +0200" }, "message": "block: move __dev from disk to part0\n\nMove disk-\u003e__dev to part0-\u003e__dev. This simplifies bdget_disk() and\nlookup_devt() and allows common sysfs attributes to be unified.\npart_to_disk() is updated to handle part0 -\u003e disk.\n\nUpdated to include a fix from Bartlomiej Zolnierkiewicz \u003cbzolnier@gmail.com\u003e,\nhe writes:\n\n\"part0 is a \"special\" partition and doesn\u0027t need to have capacity set - this\nfixes regression caused by \"block: move __dev from disk to part0\" commit.\"\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": "310a2c1012934f590192377f65940cad4aa72b15", "tree": "ed30346abf07c5a7e94719f567368d5642af1f95", "parents": [ "88e341261ca4d39eec21b212961c77eff51105f7" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Aug 25 19:47:17 2008 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:04 2008 +0200" }, "message": "block: misc updates\n\nThis patch makes the following misc updates in preparation for\ndisk-\u003epart dereference fix and extended block devt support.\n\n* implment part_to_disk()\n\n* fix comment about gendisk-\u003epart indexing\n\n* rename get_part() to disk_map_sector()\n\n* don\u0027t use n which is always zero while printing disk information in\n diskstats_show()\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "abf5439370491dd6fbb4fe1a7939680d2a9bc9d4", "tree": "aa3630557fe4a4bc6313617f5770af30eec68515", "parents": [ "1941246dd98089dd637f44d3bd4f6cc1c61aa9e4" ], "author": { "name": "FUJITA Tomonori", "email": "fujita.tomonori@lab.ntt.co.jp", "time": "Sat Aug 16 14:10:05 2008 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Wed Aug 27 09:50:19 2008 +0200" }, "message": "block: move cmdfilter from gendisk to request_queue\n\ncmd_filter works only for the block layer SG_IO with SCSI block\ndevices. It breaks scsi/sg.c, bsg, and the block layer SG_IO with SCSI\ncharacter devices (such as st). We hit a kernel crash with them.\n\nThe problem is that cmd_filter code accesses to gendisk (having struct\nblk_scsi_cmd_filter) via inode-\u003ei_bdev-\u003ebd_disk. It works for only\nSCSI block device files. With character device files, inode-\u003ei_bdev\nleads you to struct cdev. inode-\u003ei_bdev-\u003ebd_disk-\u003eblk_scsi_cmd_filter\nisn\u0027t safe.\n\nSCSI ULDs don\u0027t expose gendisk; they keep it private. bsg needs to be\nindependent on any protocols. We shouldn\u0027t change ULDs to expose their\ngendisk.\n\nThis patch moves struct blk_scsi_cmd_filter from gendisk to\nrequest_queue, a common object, which eveyone can access to.\n\nThe user interface doesn\u0027t change; users can change the filters via\n/sys/block/. gendisk has a pointer to request_queue so the cmd_filter\ncode accesses to struct blk_scsi_cmd_filter.\n\nSigned-off-by: FUJITA Tomonori \u003cfujita.tomonori@lab.ntt.co.jp\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\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": "0b07de85a76e1346e675f0e98437378932473df7", "tree": "b86e5e0be27679c408ab525534c76162754129b9", "parents": [ "6e2401ad6f33de15ff00f78b88159f00a14f3b35" ], "author": { "name": "Adel Gadllah", "email": "adel.gadllah@gmail.com", "time": "Thu Jun 26 13:48:27 2008 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Jul 03 13:21:14 2008 +0200" }, "message": "allow userspace to modify scsi command filter on per device basis\n\nThis patch exports the per-gendisk command filter to user space through\nsysfs, so it can be changed by the system administrator.\nAll users of the old cmd filter have been converted to use the new one.\n\nOriginal patch from Peter Jones.\n\nSigned-off-by: Adel Gadllah \u003cadel.gadllah@gmail.com\u003e\nSigned-off-by: Peter Jones \u003cpjones@redhat.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "7ba1ba12eeef0aa7113beb16410ef8b7c748e18b", "tree": "4629aabe88bf095d58eabd2f451207695bb35b08", "parents": [ "51d654e1d885607a6edd02b337105fa5c28b6d33" ], "author": { "name": "Martin K. Petersen", "email": "martin.petersen@oracle.com", "time": "Mon Jun 30 20:04:41 2008 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Jul 03 13:21:13 2008 +0200" }, "message": "block: Block layer data integrity support\n\nSome block devices support verifying the integrity of requests by way\nof checksums or other protection information that is submitted along\nwith the I/O.\n\nThis patch implements support for generating and verifying integrity\nmetadata, as well as correctly merging, splitting and cloning bios and\nrequests that have this extra information attached.\n\nSee Documentation/block/data-integrity.txt for more information.\n\nSigned-off-by: Martin K. Petersen \u003cmartin.petersen@oracle.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "30f2f0eb4bd2c43d10a8b0d872c6e5ad8f31c9a0", "tree": "deb8d2a749cd737d9abead1b4cc8321d00dbaee4", "parents": [ "9604006d283fb67dda5ee9e0e15b7cc6c62e1557" ], "author": { "name": "Kay Sievers", "email": "kay.sievers@vrfy.org", "time": "Tue May 06 22:31:33 2008 +0200" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Wed May 14 10:37:57 2008 -0700" }, "message": "block: do_mounts - accept root\u003d\u003cnon-existant partition\u003e\n\nSome devices, like md, may create partitions only at first access,\nso allow root\u003d to be set to a valid non-existant partition of an\nexisting disk. This applies only to non-initramfs root mounting.\n\nThis fixes a regression from 2.6.24 which did allow this to happen and\nbroke some users machines :(\n\nAcked-by: Neil Brown \u003cneilb@suse.de\u003e\nTested-by: Joao Luis Meloni Assirati \u003cassirati@nonada.if.usp.br\u003e\nCc: stable \u003cstable@kernel.org\u003e\nSigned-off-by: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "28f13702f03e527fcb979747a882cf366c489c50", "tree": "08cf04c696bf0facb083bbfbdd867e5949c5fa14", "parents": [ "6d63c275572d1e6f00d4fa154f16fbb0d8c2d2bf" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Wed May 07 10:15:46 2008 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Wed May 07 10:15:46 2008 +0200" }, "message": "block: avoid duplicate calls to get_part() in disk stat code\n\nget_part() is fairly expensive, as it O(N) loops over partitions\nto find the right one. In lots of normal IO paths we end up looking\nup the partition twice, to make matters even worse. Change the\nstat add code to accept a passed in partition instead.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "a8ae50ba9336ff77d0df0943ac27b79ba0a5a521", "tree": "4a8c8ea37b2c3011b553b540afe66373ebf16e2b", "parents": [ "0738c4bb8f2a8bf15178f852494643b0981f578b" ], "author": { "name": "David Woodhouse", "email": "dwmw2@infradead.org", "time": "Wed Mar 12 17:52:56 2008 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Mar 12 12:34:37 2008 -0700" }, "message": "Remove \u003clinux/genhd.h\u003e from user-visible headers.\n\nIt was all wrapped in \u0027#ifdef CONFIG_BLOCK\u0027 anyway, so userspace was\ngetting nothing useful out of it. And the special #ifndef __KERNEL__\nversion of \u0027struct partition\u0027 makes me inclined to promote an attitude\nof violence...\n\nStick some comments on some of the #endifs too, while we\u0027re at it.\n\nSigned-off-by: David Woodhouse \u003cdwmw2@infradead.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a0db701a6bf767320e4471bd55e70702d230f6fb", "tree": "dee103b4f56be01e908ee39edada7c26450dcc8e", "parents": [ "bec419404afe8b0d60000118ca90ada4c69a3a6d" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Tue Mar 04 11:23:50 2008 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Tue Mar 04 11:28:36 2008 +0100" }, "message": "block/genhd.c: proper externs\n\nThis patch adds proper externs for two structs in include/linux/genhd.h\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "1826eadfc42839af7c1c5a1859510aff635d3fa1", "tree": "387895990fb3db91cbf9d82d33f5df27d62a0219", "parents": [ "ff88972c850ced92b9c4c7f538d85829c741eeb0" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Tue Mar 04 11:23:46 2008 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Tue Mar 04 11:28:31 2008 +0100" }, "message": "block/genhd.c: cleanups\n\nThis patch contains the following cleanups:\n- make the needlessly global struct disk_type static\n- #if 0 the unused genhd_media_change_notify()\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\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": "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": "ea5c48ab2a76559d4af39e1f7de137c0851ac0a5", "tree": "8bd6168cc7c0209b7ffae8da2e89c35ed50f89db", "parents": [ "63a7138671c50a6f2c27bbd1a308dc75967062a3" ], "author": { "name": "Jerome Marchand", "email": "jmarchan@redhat.com", "time": "Fri Feb 08 11:04:09 2008 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri Feb 08 12:41:55 2008 +0100" }, "message": "Enhanced partition statistics: core statistics\n\nThis patch contain the core infrastructure of enhanced partition\nstatistics. It adds to struct hd_struct the same stats data as struct\ngendisk and define basics function to manipulate them.\n\nSigned-off-by: Jerome Marchand \u003cjmarchan@redhat.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\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": "b84d879639f83d35d3fcd909222522c928bf974b", "tree": "10ef0162543eca2b6107bd44646133a341777177", "parents": [ "cce933bc831c451f48ca26e5b0d9bfdfbfb327f8" ], "author": { "name": "Mark Fortescue", "email": "mark@mtfhpc.demon.co.uk", "time": "Wed Jul 25 18:30:08 2007 -0700" }, "committer": { "name": "David S. Miller", "email": "davem@sunset.davemloft.net", "time": "Mon Jul 30 00:27:28 2007 -0700" }, "message": "[PARTITION] MSDOS: Fix Sun num_partitions handling.\n\nCorrect the Solaris x86 number of partitions (slices) is a way that is\nbackward compatible with the earlier size.\n\nThis works without a new VTOC structure definition as the timestamp\nand v_asciilabel fields in the VTOC are not used by the kernel yet.\n\nSigned-off-by: Mark Fortescue \u003cmark@mtfhpc.demon.co.uk\u003e\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "8ce7ad7b2d11fae2c3d285a6a0caea9322c0b8fc", "tree": "87d7423635821dae9f26d14c62f3314ec7bb3b17", "parents": [ "86ce18d7b7925bfd6b64c061828ca2a857ee83b8" ], "author": { "name": "Kristen Carlson Accardi", "email": "kristen.c.accardi@intel.com", "time": "Wed May 23 13:57:38 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed May 23 20:14:12 2007 -0700" }, "message": "genhd: send async notification on media change\n\nSend an uevent to user space to indicate that a media change event has\noccurred.\n\nSigned-off-by: Kristen Carlson Accardi \u003ckristen.c.accardi@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "86ce18d7b7925bfd6b64c061828ca2a857ee83b8", "tree": "b753b7fd6d195aa7ed9eebc5a3917c5f20786260", "parents": [ "352823160613b65fdaa558be486720a71f75ed86" ], "author": { "name": "Kristen Carlson Accardi", "email": "kristen.c.accardi@intel.com", "time": "Wed May 23 13:57:38 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed May 23 20:14:11 2007 -0700" }, "message": "genhd: expose AN to user space\n\nAllow user space to determine if a disk supports Asynchronous Notification of\nmedia changes. This is done by adding a new sysfs file \"capability_flags\",\nwhich is documented in (insert file name). This sysfs file will export all\ndisk capabilities flags to user space. We also define a new flag to define\nthe media change notification capability.\n\nSigned-off-by: Kristen Carlson Accardi \u003ckristen.c.accardi@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "87c1efbfeac49849b981a7eac8cba42d4a49b2e9", "tree": "856b18b90a89c30bd2fa2a1982a3d7c6a15364d7", "parents": [ "d89d87965dcbe6fe4f96a2a7e8421b3a75f634d1" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri May 11 13:29:54 2007 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri May 11 13:29:54 2007 +0200" }, "message": "Fix compile/link of init/do_mounts.c with !CONFIG_BLOCK\n\nWe need a stub function for when CONFIG_BLOCK isn\u0027t set.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "dd2a345f8f002845636dbf5d2d768bb5cd8a5f59", "tree": "9ddbe34d18cf97496f4d3d582ed127fee0d96a01", "parents": [ "0e7d18b57c39bedcbd181e3c06d13572b33e5380" ], "author": { "name": "Dave Gilbert", "email": "linux@treblig.org", "time": "Wed May 09 02:33:24 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed May 09 12:30:48 2007 -0700" }, "message": "Display all possible partitions when the root filesystem failed to mount\n\nDisplay all possible partitions when the root filesystem is not mounted.\nThis helps to track spell\u0027o\u0027s and missing drivers.\n\nUpdated to work with newer kernels.\n\nExample output:\n\nVFS: Cannot open root device \"foobar\" or unknown-block(0,0)\nPlease append a correct \"root\u003d\" boot option; here are the available partitions:\n0800 8388608 sda driver: sd\n 0801 192748 sda1\n 0802 8193150 sda2\n0810 4194304 sdb driver: sd\nKernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)\n\n[akpm@linux-foundation.org: cleanups, fix printk warnings]\nSigned-off-by: Jan Engelhardt \u003cjengelh@gmx.de\u003e\nCc: Dave Gilbert \u003clinux@treblig.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c827ba4cb49a30ce581201fd0ba2be77cde412c7", "tree": "b573020e4d30ecdf69b22fcd1ced3dbb0e024ed3", "parents": [ "fdba0f2da4b1db682b829b76302b2f25c376051c", "784020fb950741cbb7390c6b622321da626fb1e8" ], "author": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Sun Feb 11 11:37:45 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Sun Feb 11 11:37:45 2007 -0800" }, "message": "Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6\n\n* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:\n [SPARC64]: Update defconfig.\n [SPARC64]: Add PCI MSI support on Niagara.\n [SPARC64] IRQ: Use irq_desc-\u003echip_data instead of irq_desc-\u003ehandler_data\n [SPARC64]: Add obppath sysfs attribute for SBUS and PCI devices.\n [PARTITION]: Add whole_disk attribute.\n" }, { "commit": "4419d1ac7def3c2f74cab15e4a1c69cffcaadedd", "tree": "adeb2b715cbd53d94cf71127f4b4bd19d5544cd5", "parents": [ "aa58d61d18b89b98521364550b481fd9bd18c3b6" ], "author": { "name": "Olaf Hering", "email": "olh@suse.de", "time": "Sat Feb 10 01:45:47 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Sun Feb 11 10:51:31 2007 -0800" }, "message": "[PATCH] relax check for AIX in msdos partition table\n\nThe patch to identify AIX disks and ignore them has caused at least one\nmachine to fail to find the root partition on 2.6.19. The patch is:\n\nhttp://lkml.org/lkml/2006/7/31/117\n\nThe problem is some disk formatters do not blow away the first 4 bytes\nof the disk. If the disk we are installing to used to have AIX on it,\nthen the first 4 bytes will still have IBMA in EBCDIC.\n\nThe install in question was debian etch. Im not sure what the best fix\nis, perhaps the AIX detection code could check more than the first 4\nbytes.\n\nThe whole partition info for primary partitions is in this block:\n\n dd if\u003d/dev/sdb count\u003d$(( 4 * 16 )) bs\u003d1 skip\u003d$(( 0x1be ))\n\nAll other data do not matter, beside the 0x55aa marker at the end of the\nfirst block.\n\nSigned-off-by: Olaf Hering \u003colh@suse.de\u003e\nCc: OGAWA Hirofumi \u003chirofumi@mail.parknet.co.jp\u003e\nCc: Anton Blanchard \u003canton@samba.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\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": "9361401eb7619c033e2394e4f9f6d410d6719ac7", "tree": "04b94a71f2366988c17740d1c16cfbdec41d5d2e", "parents": [ "d366e40a1cabd453be6e2609caa7e12f9ca17b1f" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Sat Sep 30 20:45:40 2006 +0200" }, "committer": { "name": "Jens Axboe", "email": "axboe@nelson.home.kernel.dk", "time": "Sat Sep 30 20:52:31 2006 +0200" }, "message": "[PATCH] BLOCK: Make it possible to disable the block layer [try #6]\n\nMake it possible to disable the block layer. Not all embedded devices require\nit, some can make do with just JFFS2, NFS, ramfs, etc - none of which require\nthe block layer to be present.\n\nThis patch does the following:\n\n (*) Introduces CONFIG_BLOCK to disable the block layer, buffering and blockdev\n support.\n\n (*) Adds dependencies on CONFIG_BLOCK to any configuration item that controls\n an item that uses the block layer. This includes:\n\n (*) Block I/O tracing.\n\n (*) Disk partition code.\n\n (*) All filesystems that are block based, eg: Ext3, ReiserFS, ISOFS.\n\n (*) The SCSI layer. As far as I can tell, even SCSI chardevs use the\n \t block layer to do scheduling. Some drivers that use SCSI facilities -\n \t such as USB storage - end up disabled indirectly from this.\n\n (*) Various block-based device drivers, such as IDE and the old CDROM\n \t drivers.\n\n (*) MTD blockdev handling and FTL.\n\n (*) JFFS - which uses set_bdev_super(), something it could avoid doing by\n \t taking a leaf out of JFFS2\u0027s book.\n\n (*) Makes most of the contents of linux/blkdev.h, linux/buffer_head.h and\n linux/elevator.h contingent on CONFIG_BLOCK being set. sector_div() is,\n however, still used in places, and so is still available.\n\n (*) Also made contingent are the contents of linux/mpage.h, linux/genhd.h and\n parts of linux/fs.h.\n\n (*) Makes a number of files in fs/ contingent on CONFIG_BLOCK.\n\n (*) Makes mm/bounce.c (bounce buffering) contingent on CONFIG_BLOCK.\n\n (*) set_page_dirty() doesn\u0027t call __set_page_dirty_buffers() if CONFIG_BLOCK\n is not enabled.\n\n (*) fs/no-block.c is created to hold out-of-line stubs and things that are\n required when CONFIG_BLOCK is not set:\n\n (*) Default blockdev file operations (to give error ENODEV on opening).\n\n (*) Makes some /proc changes:\n\n (*) /proc/devices does not list any blockdevs.\n\n (*) /proc/diskstats and /proc/partitions are contingent on CONFIG_BLOCK.\n\n (*) Makes some compat ioctl handling contingent on CONFIG_BLOCK.\n\n (*) If CONFIG_BLOCK is not defined, makes sys_quotactl() return -ENODEV if\n given command other than Q_SYNC or if a special device is specified.\n\n (*) In init/do_mounts.c, no reference is made to the blockdev routines if\n CONFIG_BLOCK is not defined. This does not prohibit NFS roots or JFFS2.\n\n (*) The bdflush, ioprio_set and ioprio_get syscalls can now be absent (return\n error ENOSYS by way of cond_syscall if so).\n\n (*) The seclvl_bd_claim() and seclvl_bd_release() security calls do nothing if\n CONFIG_BLOCK is not set, since they can\u0027t then happen.\n\nSigned-Off-By: David Howells \u003cdhowells@redhat.com\u003e\nSigned-off-by: Jens Axboe \u003caxboe@kernel.dk\u003e\n" }, { "commit": "ce7b0f46bbf4bff8daab2dd3d878b9e72a623d09", "tree": "7a860cf52fbf1ff768197702af60a8329d296dff", "parents": [ "96192ff1a9d0c6ef365d21667080259d83ea2f5b" ], "author": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Mon Jun 20 21:15:16 2005 -0700" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Mon Jun 26 12:25:08 2006 -0700" }, "message": "[PATCH] devfs: Remove the gendisk devfs_name field as it\u0027s no longer needed\n\nAnd remove the now unneeded number field.\nAlso fixes all drivers that set these fields.\n\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n" }, { "commit": "34186efc17025520a53a48468338003d238a77d7", "tree": "f887ed9f90f3a817cfb239c343f08dd380cfa15d", "parents": [ "f2999e4ea41d6ec6252d3b6d275b40d468a3c07e" ], "author": { "name": "David Woodhouse", "email": "dwmw2@infradead.org", "time": "Tue Apr 25 14:07:57 2006 +0100" }, "committer": { "name": "David Woodhouse", "email": "dwmw2@infradead.org", "time": "Tue Apr 25 14:07:57 2006 +0100" }, "message": "Include various private files only from within __KERNEL__ in genhd.h\n\nSigned-off-by: David Woodhouse \u003cdwmw2@infradead.org\u003e\n" }, { "commit": "d4d7e5dffc4844ef51fe11f497bd774c04413a00", "tree": "e65b52809b9178c627f0d73c6b4bdf1fb3e03889", "parents": [ "0f836ca4c122f4ef096110d652a6326fe34e6961" ], "author": { "name": "Kay Sievers", "email": "kay.sievers@suse.de", "time": "Fri Mar 24 20:45:35 2006 +0100" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Fri Apr 14 11:41:24 2006 -0700" }, "message": "[PATCH] BLOCK: delay all uevents until partition table is scanned\n\n[BLOCK] delay all uevents until partition table is scanned\n\nHere we delay the annoucement of all block device events until the\ndisk\u0027s partition table is scanned and all partition devices are already\ncreated and sysfs is populated.\n\nWe have a bunch of old bugs for removable storage handling where we\nprobe successfully for a filesystem on the raw disk, but at the\nsame time the kernel recognizes a partition table and creates partition\ndevices.\nCurrently there is no sane way to tell if partitions will show up or not\nat the time the disk device is announced to userspace. With the delayed\nevents we can simply skip any probe for a filesystem on the raw disk when\nwe find already present partitions.\n\nSigned-off-by: Kay Sievers \u003ckay.sievers@suse.de\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n" }, { "commit": "0a945022778f100115d0cb6234eb28fc1b15ccaf", "tree": "85df4b5f7dd8bf59557091379c59b23b09115bf6", "parents": [ "631d6747e1d877a4baa924cb373b8b9511a53e5e" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Tue Mar 28 01:56:37 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 09:16:05 2006 -0800" }, "message": "[PATCH] for_each_possible_cpu: fixes for generic part\n\nreplaces for_each_cpu with for_each_possible_cpu().\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "4fa639123d9e6e8dfaa3d116368f4b2478da31af", "tree": "50c42e2102a542891a15b5011e48fbde14149baf", "parents": [ "df5b89b323b922f56650b4b4d7c41899b937cf19", "ae36b883d29e53b6083ed3d1d44f254cee7507d3" ], "author": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Mar 27 08:46:49 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Mar 27 08:46:49 2006 -0800" }, "message": "Merge branch \u0027for-linus\u0027 of git://brick.kernel.dk/data/git/linux-2.6-block\n\n* \u0027for-linus\u0027 of git://brick.kernel.dk/data/git/linux-2.6-block:\n [PATCH] Don\u0027t make debugfs depend on DEBUG_KERNEL\n [PATCH] Fix blktrace compile with sysfs not defined\n [PATCH] unused label in drivers/block/cciss.\n [BLOCK] increase size of disk stat counters\n [PATCH] blk_execute_rq_nowait-speedup\n [PATCH] ide-cd: quiet down GPCMD_READ_CDVD_CAPACITY failure\n [BLOCK] ll_rw_blk: kmalloc -\u003e kzalloc conversion\n [PATCH] kzalloc() conversion in drivers/block\n [PATCH] update max_sectors documentation\n" }, { "commit": "100873687d81d4ce7b1299b447d33e87ba1e9583", "tree": "d001189d851885fca9a8b287053a4d179c071763", "parents": [ "6a4d44c1f1108d6c9e8850e8cf166aaba0e56eae" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Mon Mar 27 01:17:56 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Mar 27 08:44:59 2006 -0800" }, "message": "[PATCH] dm-md-dependency-tree-in-sysfs-holders-slaves-subdirectory-tidy\n\nRemove all the CONFIG_SYSFS stuff. That\u0027s supposed to all be implemented up\nin header files.\n\nYes, the CONFIG_SYSFS\u003dn data structures will be a little larger than\nnecessary, but that\u0027s a tradeoff we can decide to make.\n\nCc: Jun\u0027ichi Nomura \u003cj-nomura@ce.jp.nec.com\u003e\nCc: Alasdair G Kergon \u003cagk@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6a4d44c1f1108d6c9e8850e8cf166aaba0e56eae", "tree": "4e0b59ca2b4959e1593cbcdec4b90ec0d9041126", "parents": [ "3ac51e741a46af7a20f55e79d3e3aeaa93c6c544" ], "author": { "name": "Jun\u0027ichi Nomura", "email": "j-nomura@ce.jp.nec.com", "time": "Mon Mar 27 01:17:55 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Mar 27 08:44:59 2006 -0800" }, "message": "[PATCH] dm/md dependency tree in sysfs: holders/slaves subdirectory\n\nCreating \"slaves\" and \"holders\" directories in /sys/block/\u003cdisk\u003e and\ncreating \"holders\" directory under /sys/block/\u003cdisk\u003e/\u003cpartition\u003e\n\nSigned-off-by: Jun\u0027ichi Nomura \u003cj-nomura@ce.jp.nec.com\u003e\nCc: Alasdair G Kergon \u003cagk@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "837c7878771c15ed8d85ecf814ece7fcb4551b46", "tree": "28b06f0734958802ab98e1e6712ac3c6bf8f2518", "parents": [ "4c5d0bbde9669cfb7f7fd4670dc9a117aea90384" ], "author": { "name": "Ben Woodard", "email": "woodard@redhat.com", "time": "Wed Mar 22 08:09:31 2006 +0100" }, "committer": { "name": "Jens Axboe", "email": "axboe@nelson.home.kernel.dk", "time": "Mon Mar 27 09:29:02 2006 +0200" }, "message": "[BLOCK] increase size of disk stat counters\n\nThe kernel\u0027s representation of the disk statistics uses the type unsigned\nwhich is 32b on both 32b and 64b platforms. Unfortunately, most system\ntools that work with these numbers that are exported in /proc/diskstats\nincluding iostat read these numbers into unsigned longs. This works fine\non 32b platforms and when the number of IO transactions are small on 64b\nplatforms. However, when the numbers wrap on 64b platforms \u0026 you read the\nnumbers into unsigned longs, and compare the numbers to previous readings,\nthen you get an unsigned representation of a negative number. This looks\nlike a very large 64b number \u0026 gives you bizarre readouts in iostat:\n\nilc4: Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util\nilc4: sda 5.50 0.00 143.96 0.00 307496983987862656.00 0.00 153748491993931328.00 0.00 2136028725038430.00 7.94 55.12 5.59 80.42\n\nThough fixing iostat in user space is possible, and a quick survey\nindicates that several other similar tools also use unsigned longs when\nprocessing /proc/diskstats. Therefore, it seems like a better approach\nwould be to extend the length of the disk_stats structure on 64b\narchitectures to 64b. The following patch does that. It should not affect\nthe operation on 32b platforms.\n\nSigned-off-by: Ben Woodard \u003cwoodard@redhat.com\u003e\nCc: Rick Lindsley \u003cricklind@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Jens Axboe \u003caxboe@suse.de\u003e\n" }, { "commit": "394e3902c55e667945f6f1c2bdbc59842cce70f7", "tree": "f4bca0bdc0c291fda6f6949265aacec0669b9084", "parents": [ "63872f87a151413100678f110d1556026002809e" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Thu Mar 23 03:01:05 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Mar 23 07:38:17 2006 -0800" }, "message": "[PATCH] more for_each_cpu() conversions\n\nWhen we stop allocating percpu memory for not-possible CPUs we must not touch\nthe percpu data for not-possible CPUs at all. The correct way of doing this\nis to test cpu_possible() or to use for_each_cpu().\n\nThis patch is a kernel-wide sweep of all instances of NR_CPUS. I found very\nfew instances of this bug, if any. But the patch converts lots of open-coded\ntest to use the preferred helper macros.\n\nCc: Mikael Starvik \u003cstarvik@axis.com\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: Kyle McMartin \u003ckyle@parisc-linux.org\u003e\nCc: Anton Blanchard \u003canton@samba.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: William Lee Irwin III \u003cwli@holomorphy.com\u003e\nCc: Andi Kleen \u003cak@muc.de\u003e\nCc: Christian Zankel \u003cchris@zankel.net\u003e\nCc: Philippe Elie \u003cphil.el@wanadoo.fr\u003e\nCc: Nathan Scott \u003cnathans@sgi.com\u003e\nCc: Jens Axboe \u003caxboe@suse.de\u003e\nCc: Eric Dumazet \u003cdada1@cosmosbay.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "47a004103d663bbba8c7c433a710a86f44351cf3", "tree": "91bf9479fa43e7a13b02b2f6b957373b5b28b5ef", "parents": [ "cff3ba2204a0797b05150a4b2b7f40a55023d952" ], "author": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Wed Nov 09 13:38:47 2005 +0100" }, "committer": { "name": "Jens Axboe", "email": "axboe@nelson.home.kernel.dk", "time": "Sat Nov 12 10:55:21 2005 +0100" }, "message": "[BLOCK] Document the READ/WRITE splitup of the disk stats\n\nUse the symbolic name where appropriate and add a comment to the\ndisk_stats structure.\n\nSigned-off-by: Jens Axboe \u003caxboe@suse.de\u003e\n" }, { "commit": "a362357b6cd62643d4dda3b152639303d78473da", "tree": "fe4ce823e638ded151edcb142f28a240860f0d33", "parents": [ "d72d904a5367ad4ca3f2c9a2ce8c3a68f0b28bf0" ], "author": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Tue Nov 01 09:26:16 2005 +0100" }, "committer": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Tue Nov 01 09:26:16 2005 +0100" }, "message": "[BLOCK] Unify the seperate read/write io stat fields into arrays\n\nInstead of having -\u003eread_sectors and -\u003ewrite_sectors, combine the two\ninto -\u003esectors[2] and similar for the other fields. This saves a branch\nseveral places in the io path, since we don\u0027t have to care for what the\nactual io direction is. On my x86-64 box, that\u0027s 200 bytes less text in\njust the core (not counting the various drivers).\n\nSigned-off-by: Jens Axboe \u003caxboe@suse.de\u003e\n" }, { "commit": "6fbfddcb52d8d9fa2cd209f5ac2a1c87497d55b5", "tree": "c0414e89678fcef7ce3493e048d855bde781ae8d", "parents": [ "1a222bca26ca691e83be1b08f5e96ae96d0d8cae", "27d1097d39509494706eaa2620ef3b1e780a3224" ], "author": { "name": "Greg KH", "email": "greg@press.(none)", "time": "Fri Oct 28 10:13:16 2005 -0700" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Fri Oct 28 10:13:16 2005 -0700" }, "message": "Merge ../bleed-2.6\n" }, { "commit": "a7fd67062efc5b0fc9a61368c607fa92d1d57f9e", "tree": "8b91f198640608bd99f4e4764394e5134220abcf", "parents": [ "d8539d81aeee4dbdc0624a798321e822fb2df7ae" ], "author": { "name": "Kay Sievers", "email": "kay.sievers@suse.de", "time": "Sat Oct 01 14:49:43 2005 +0200" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Fri Oct 28 09:52:51 2005 -0700" }, "message": "[PATCH] add sysfs attr to re-emit device hotplug event\n\nA \"coldplug + udevstart\" can be simple like this:\n for i in /sys/block/*/*/uevent; do echo 1 \u003e $i; done\n for i in /sys/class/*/*/uevent; do echo 1 \u003e $i; done\n for i in /sys/bus/*/devices/*/uevent; do echo 1 \u003e $i; done\n\nSigned-off-by: Kay Sievers \u003ckay.sievers@suse.de\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n" }, { "commit": "20e5c81fcff89535dced2ed71cf24c6c648ff40e", "tree": "c19edf4ce636f0e4713e39dd918c7d3772cda64a", "parents": [ "741b2252a5e14d6c60a913c77a6099abe73a854a" ], "author": { "name": "Chen, Kenneth W", "email": "kenneth.w.chen@intel.com", "time": "Thu Oct 13 21:48:42 2005 +0200" }, "committer": { "name": "Jens Axboe", "email": "axboe@nelson.home.kernel.dk", "time": "Fri Oct 28 08:15:30 2005 +0200" }, "message": "[patch] remove gendisk-\u003estamp_idle field\n\nstruct gendisk has these two fields: stamp, stamp_idle. Update to\nstamp_idle is always in sync with stamp and they are always the same.\nTherefore, it does not add any value in having two fields tracking\nsame timestamp. Suggest to remove it.\n\nAlso, we should only update gendisk stats with non-zero value.\nAdvantage is that we don\u0027t have to needlessly calculate memory address,\nand then add zero to the content.\n\nSigned-off-by: Ken Chen \u003ckenneth.w.chen@intel.com\u003e\nSigned-off-by: Jens Axboe \u003caxboe@suse.de\u003e\n" }, { "commit": "ac20427ef6aa63da663bdc88b71d16f7394f5e23", "tree": "49ba4f88c5cea42d59b386c508174f585efc8a01", "parents": [ "3bc1ee3e8f1c05c0f64a479c6d56eb34a6190599" ], "author": { "name": "Neil Horman", "email": "nhorman@redhat.com", "time": "Thu Jun 23 00:09:11 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Thu Jun 23 09:45:19 2005 -0700" }, "message": "[PATCH] add check to /proc/devices read routines\n\nPatch to add check to get_chrdev_list and get_blkdev_list to prevent reads\nof /proc/devices from spilling over the provided page if more than 4096\nbytes of string data are generated from all the registered character and\nblock devices in a system\n\nSigned-off-by: Neil Horman \u003cnhorman@redhat.com\u003e\nCc: Christoph Hellwig \u003chch@lst.de\u003e\nCc: \u003cviro@parcelfarce.linux.theplanet.co.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "1946089a109251655c5438d92c539bd2930e71ea", "tree": "819a492d5a7c4e6e695b150a86abeb99d5ac46eb", "parents": [ "8c5a09082f4e61a176382e96a831a0636b918602" ], "author": { "name": "Christoph Lameter", "email": "christoph@lameter.com", "time": "Thu Jun 23 00:08:19 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Thu Jun 23 09:45:09 2005 -0700" }, "message": "[PATCH] NUMA aware block device control structure allocation\n\nPatch to allocate the control structures for for ide devices on the node of\nthe device itself (for NUMA systems). The patch depends on the Slab API\nchange patch by Manfred and me (in mm) and the pcidev_to_node patch that I\nposted today.\n\nDoes some realignment too.\n\nSigned-off-by: Justin M. Forbes \u003cjmforbes@linuxtx.org\u003e\nSigned-off-by: Christoph Lameter \u003cchristoph@lameter.com\u003e\nSigned-off-by: Pravin Shelar \u003cpravin@calsoftinc.com\u003e\nSigned-off-by: Shobhit Dayal \u003cshobhit@calsoftinc.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "tree": "0bba044c4ce775e45a88a51686b5d9f90697ea9d", "parents": [], "author": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Apr 16 15:20:36 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Apr 16 15:20:36 2005 -0700" }, "message": "Linux-2.6.12-rc2\n\nInitial git repository build. I\u0027m not bothering with the full history,\neven though we have it. We can create a separate \"historical\" git\narchive of that later if we want to, and in the meantime it\u0027s about\n3.2GB when imported into git - space that would just make the early\ngit days unnecessarily complicated, when we don\u0027t have a lot of good\ninfrastructure for it.\n\nLet it rip!\n" } ] }