)]}' { "log": [ { "commit": "e18b890bb0881bbab6f4f1a6cd20d9c60d66b003", "tree": "4828be07e1c24781c264b42c5a75bcd968223c3f", "parents": [ "441e143e95f5aa1e04026cb0aa71c801ba53982f" ], "author": { "name": "Christoph Lameter", "email": "clameter@sgi.com", "time": "Wed Dec 06 20:33:20 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Thu Dec 07 08:39:25 2006 -0800" }, "message": "[PATCH] slab: remove kmem_cache_t\n\nReplace all uses of kmem_cache_t with struct kmem_cache.\n\nThe patch was generated using the following script:\n\n\t#!/bin/sh\n\t#\n\t# Replace one string by another in all the kernel sources.\n\t#\n\n\tset -e\n\n\tfor file in `find * -name \"*.c\" -o -name \"*.h\"|xargs grep -l $1`; do\n\t\tquilt add $file\n\t\tsed -e \"1,\\$s/$1/$2/g\" $file \u003e/tmp/$$\n\t\tmv /tmp/$$ $file\n\t\tquilt refresh\n\tdone\n\nThe script was run like this\n\n\tsh replace kmem_cache_t \"struct kmem_cache\"\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "4f2e639af4bd5e152fc79256e333643d3dd6c10f", "tree": "1adf32d929c552d7e4b24475baa45c6108436f79", "parents": [ "1c05b4bc22cd640d3a534bd2851a8413d5df3709" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Sat Oct 21 10:24:09 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Oct 21 13:35:05 2006 -0700" }, "message": "[PATCH] md: endian annotations for the bitmap superblock\n\nAnd a couple of bug fixes found by sparse.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "1c05b4bc22cd640d3a534bd2851a8413d5df3709", "tree": "dceceabea9bdb92213e2a2d318cdd1b152832cbd", "parents": [ "da3ed32fe568148ede256975d40825ffcdac767b" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Sat Oct 21 10:24:08 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Oct 21 13:35:05 2006 -0700" }, "message": "[PATCH] md: endian annotation for v1 superblock access\n\nIncludes a couple of bugfixes found by sparse.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "e8703fe1f5cdcff686f7eb0a46487b5a04a9324a", "tree": "3b52bfa6ee57d59e059fd0e8d8504dbd3ee073b4", "parents": [ "d33a56d3639eba077489c937943a32ef6237b1b8" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Tue Oct 03 01:15:59 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Oct 03 08:04:18 2006 -0700" }, "message": "[PATCH] md: remove MAX_MD_DEVS which is an arbitrary limit\n\nOnce upon a time we needed to fixed limit to the number of md devices,\nprobably because we preallocated some array. This need no longer exists, but\nwe still have an arbitrary limit.\n\nSo remove MAX_MD_DEVS and allow as many devices as we can fit into the \u0027minor\u0027\npart of a device number.\n\nAlso remove some useless noise at init time (which reports MAX_MD_DEVS) and\nremove MD_THREAD_NAME_MAX which hasn\u0027t been used for a while.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "11ce99e625fe2718ad2682bfdd99070b337e6252", "tree": "48e40104a058f27e9cd717c42edcf6738fef2372", "parents": [ "867868fb557eb2a2120b80779468fa372584ddb0" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Tue Oct 03 01:15:52 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Oct 03 08:04:17 2006 -0700" }, "message": "[PATCH] md: Remove working_disks from raid1 state data\n\nIt is equivalent to conf-\u003eraid_disks - conf-\u003emddev-\u003edegraded.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "9b1d1dac181d8c1b9492e05cee660a985d035a06", "tree": "af12b1eaac4e0f7f3528ec26a223faeabed35845", "parents": [ "76186dd8b73d2b7b9b4c8629b89c845e97009801" ], "author": { "name": "Paul Clements", "email": "paul.clements@steeleye.com", "time": "Tue Oct 03 01:15:49 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Oct 03 08:04:17 2006 -0700" }, "message": "[PATCH] md: new sysfs interface for setting bits in the write-intent-bitmap\n\nAdd a new sysfs interface that allows the bitmap of an array to be dirtied.\nThe interface is write-only, and is used as follows:\n\necho \"1000\" \u003e /sys/block/md2/md/bitmap\n\n(dirty the bit for chunk 1000 [offset 0] in the in-memory and on-disk\nbitmaps of array md2)\n\necho \"1000-2000\" \u003e /sys/block/md1/md/bitmap\n\n(dirty the bits for chunks 1000-2000 in md1\u0027s bitmap)\n\nThis is useful, for example, in cluster environments where you may need to\ncombine two disjoint bitmaps into one (following a server failure, after a\nsecondary server has taken over the array). By combining the bitmaps on\nthe two servers, a full resync can be avoided (This was discussed on the\nlist back on March 18, 2005, \"[PATCH 1/2] md bitmap bug fixes\" thread).\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "76186dd8b73d2b7b9b4c8629b89c845e97009801", "tree": "1f1c2fe5530de65fa149faa3e6b2969044e7b0a8", "parents": [ "02c2de8cc835885bdff51a8bfd6c0b659b969f50" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Tue Oct 03 01:15:48 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Oct 03 08:04:17 2006 -0700" }, "message": "[PATCH] md: remove \u0027working_disks\u0027 from raid10 state\n\nIt isn\u0027t needed as mddev-\u003edegraded contains equivalent info.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "02c2de8cc835885bdff51a8bfd6c0b659b969f50", "tree": "3c3b3adf01e4ec4139888d681eca5becb3374fda", "parents": [ "850b2b420cd5b363ed4cf48a8816d656c8b5251b" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Tue Oct 03 01:15:47 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Oct 03 08:04:17 2006 -0700" }, "message": "[PATCH] md: remove the working_disks and failed_disks from raid5 state data.\n\nThey are not needed. conf-\u003efailed_disks is the same as mddev-\u003edegraded and\nconf-\u003eworking_disks is conf-\u003eraid_disks - mddev-\u003edegraded.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "850b2b420cd5b363ed4cf48a8816d656c8b5251b", "tree": "b63aa37b3fb7dfb7a0b674d5a2ebe9da13cc7405", "parents": [ "6814d5368d68341ec6b5e4ecd10ea5947130775a" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Tue Oct 03 01:15:46 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Oct 03 08:04:17 2006 -0700" }, "message": "[PATCH] md: replace magic numbers in sb_dirty with well defined bit flags\n\nInstead of magic numbers (0,1,2,3) in sb_dirty, we have\nsome flags instead:\nMD_CHANGE_DEVS\n Some device state has changed requiring superblock update\n on all devices.\nMD_CHANGE_CLEAN\n The array has transitions from \u0027clean\u0027 to \u0027dirty\u0027 or back,\n requiring a superblock update on active devices, but possibly\n not on spares\nMD_CHANGE_PENDING\n A superblock update is underway.\n\nWe wait for an update to complete by waiting for all flags to be clear. A\nflag can be set at any time, even during an update, without risk that the\nchange will be lost.\n\nStop exporting md_update_sb - isn\u0027t needed.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "b5c124af69119c1b5c1e728bd2e7b5b1fad9b7be", "tree": "7caf3a0fec3dfd4e4e9781aa67be9430f618ccf0", "parents": [ "fbedac04fa11d7f9f9f425c7ec253f55becaae57" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Tue Oct 03 01:15:45 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Oct 03 08:04:16 2006 -0700" }, "message": "[PATCH] md: fix a comment that is wrong in raid5.h\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "fbedac04fa11d7f9f9f425c7ec253f55becaae57", "tree": "700b49b6ea0da293d07a6a32cc154347e134686f", "parents": [ "999d816851c3e080412a19558f111d01852d2f04" ], "author": { "name": "Adrian Bunk", "email": "bunk@stusta.de", "time": "Tue Oct 03 01:15:44 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Oct 03 08:04:16 2006 -0700" }, "message": "[PATCH] md: the scheduled removal of the START_ARRAY ioctl for md\n\nThis patch contains the scheduled removal of the START_ARRAY ioctl for md.\n\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\nSigned-off-by: Neil Brown \u003cneilb@suse.de\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": "fadcfa33b6319a5faf8af2287f08bf93a7f926b6", "tree": "367e931ec64a88c20a4d15c351d4c7dbb1b7adf1", "parents": [ "47a5c6fa0e204a2b63309c648bb2fde36836c826" ], "author": { "name": "David Woodhouse", "email": "dwmw2@infradead.org", "time": "Tue Sep 19 12:43:58 2006 +0100" }, "committer": { "name": "David Woodhouse", "email": "dwmw2@infradead.org", "time": "Tue Sep 19 12:43:58 2006 +0100" }, "message": "[HEADERS] One line per header in Kbuild files to reduce conflicts\n\nSigned-off-by: David Woodhouse \u003cdwmw2@infradead.org\u003e\n" }, { "commit": "ff4e8d9a9f46e3a7f89d14ade52fe5d53a82c022", "tree": "e15fc4d8af0045a3947e3a25844773c6ee50289a", "parents": [ "0b8c9de05c2a860fe6b02fedcb48763bcee648b3" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Mon Jul 10 04:44:16 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Jul 10 13:24:16 2006 -0700" }, "message": "[PATCH] md: fix resync speed calculation for restarted resyncs\n\nWe introduced \u0027io_sectors\u0027 recently so we could count the sectors that causes\nio during resync separate from sectors which didn\u0027t cause IO - there can be a\ndifference if a bitmap is being used to accelerate resync.\n\nHowever when a speed is reported, we find the number of sectors processed\nrecently by subtracting an oldish io_sectors count from a current\n\u0027curr_resync\u0027 count. This is wrong because curr_resync counts all sectors,\nnot just io sectors.\n\nSo, add a field to mddev to store the curren io_sectors separately from\ncurr_resync, and use that in the calculations.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6fa0cb1141da80eed4f86155fb51931bc1c31888", "tree": "df9b3c378ae4f44260eaae1a4b9d5c4ccf7bb641", "parents": [ "c6482dde1c2811afba289b2344268f850595f350", "257a5bdeb0441789d8e34e1b3e92b26d0f51bbf0" ], "author": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Jul 04 12:55:45 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Jul 04 12:55:45 2006 -0700" }, "message": "Merge git://git.infradead.org/hdrinstall-2.6\n\n* git://git.infradead.org/hdrinstall-2.6:\n Remove export of include/linux/isdn/tpam.h\n Remove \u003clinux/i2c-id.h\u003e and \u003clinux/i2c-algo-ite.h\u003e from userspace export\n Restrict headers exported to userspace for SPARC and SPARC64\n Add empty Kbuild files for \u0027make headers_install\u0027 in remaining arches.\n Add Kbuild file for Alpha \u0027make headers_install\u0027\n Add Kbuild file for SPARC \u0027make headers_install\u0027\n Add Kbuild file for IA64 \u0027make headers_install\u0027\n Add Kbuild file for S390 \u0027make headers_install\u0027\n Add Kbuild file for i386 \u0027make headers_install\u0027\n Add Kbuild file for x86_64 \u0027make headers_install\u0027\n Add Kbuild file for PowerPC \u0027make headers_install\u0027\n Add generic Kbuild files for \u0027make headers_install\u0027\n Basic implementation of \u0027make headers_check\u0027\n Basic implementation of \u0027make headers_install\u0027\n" }, { "commit": "42543769142d2375f2b5f8fc9cac999f84bd4c4c", "tree": "404606c37da872639111c5b641f07fff2ded1dff", "parents": [ "07d84d109d8beedd68df9da2e4e9f25c8217e7fb" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Mon Jun 26 00:27:57 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Jun 26 09:58:39 2006 -0700" }, "message": "[PATCH] md: Don\u0027t write dirty/clean update to spares - leave them alone\n\n- record the \u0027event\u0027 count on each individual device (they\n might sometimes be slightly different now)\n- add a new value for \u0027sb_dirty\u0027: \u00273\u0027 means that the super\n block only needs to be updated to record a clean\u003c-\u003edirty\n transition.\n- Prefer odd event numbers for dirty states and even numbers\n for clean states\n- Using all the above, don\u0027t update the superblock on\n a spare device if the update is just doing a clean-dirty\n transition. To accomodate this, a transition from\n dirty back to clean might now decrement the events counter\n if nothing else has changed.\n\nThe net effect of this is that spare drives will not see any IO requests\nduring normal running of the array, so they can go to sleep if that is what\nthey want to do.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "d785a06a0b9d0cd86b3cc1bf8e236e62af7b47ed", "tree": "7a238aedb0facb5c207a0477296e78b9ef7d551b", "parents": [ "acc55e220166a5ad898e66ad6153fd62eaaac76d" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Mon Jun 26 00:27:48 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Jun 26 09:58:38 2006 -0700" }, "message": "[PATCH] md/bitmap: change md/bitmap file handling to use bmap to file blocks\n\nIf md is asked to store a bitmap in a file, it tries to hold onto the page\ncache pages for that file, manipulate them directly, and call a cocktail of\noperations to write the file out. I don\u0027t believe this is a supportable\napproach.\n\nThis patch changes the approach to use the same approach as swap files. i.e.\nbmap is used to enumerate all the block address of parts of the file and we\nwrite directly to those blocks of the device.\n\nswapfile only uses parts of the file that provide a full pages at contiguous\naddresses. We don\u0027t have that luxury so we have to cope with pages that are\nnon-contiguous in storage. To handle this we attach buffers to each page, and\nstore the addresses in those buffers.\n\nWith this approach the pagecache may contain data which is inconsistent with\nwhat is on disk. To alleviate the problems this can cause, md invalidates the\npagecache when releasing the file. If the file is to be examined while the\narray is active (a non-critical but occasionally useful function), O_DIRECT io\nmust be used. And new version of mdadm will have support for this.\n\nThis approach simplifies a lot of code:\n - we no longer need to keep a list of pages which we need to wait for,\n as the b_endio function can keep track of how many outstanding\n writes there are. This saves a mempool.\n - -EAGAIN returns from write_page are no longer possible (not sure if\n they ever were actually).\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "0b79ccf0cdd9f59e5f99017e1a5d23da336544b2", "tree": "8688d9810fcba1e24abce726eaf35ff32f6b58d9", "parents": [ "d7375ab324971e7acbea9f02a0269ae7348f4147" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Mon Jun 26 00:27:44 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Jun 26 09:58:38 2006 -0700" }, "message": "[PATCH] md/bitmap: remove bitmap writeback daemon\n\nmd/bitmap currently has a separate thread to wait for writes to the bitmap\nfile to complete (as we cannot get a callback on that action).\n\nHowever this isn\u0027t needed as bitmap_unplug is called from process context and\nwaits for the writeback thread to do it\u0027s work. The same result can be\nachieved by doing the waiting directly in bitmap_unplug.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "5e56341d029f0c2cf31e78dc01d4c861ba4d6a5e", "tree": "e77087a31d3d1b86c563fb4461f07ee642de280b", "parents": [ "c93983bf517c100a31e40ef087e19bd3d7aa2d28" ], "author": { "name": "Adrian Bunk", "email": "bunk@stusta.de", "time": "Mon Jun 26 00:27:42 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Jun 26 09:58:37 2006 -0700" }, "message": "[PATCH] md: make md_print_devices() static\n\nThis patch makes the needlessly global md_print_devices() static.\n\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "c93983bf517c100a31e40ef087e19bd3d7aa2d28", "tree": "9361c68d5f00ccd34cbc0a3bc7bc2389ce7f4c3a", "parents": [ "7c7546ccf6463edbeee8d9aac6de7be1cd80d08a" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Mon Jun 26 00:27:41 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Jun 26 09:58:37 2006 -0700" }, "message": "[PATCH] md: support stripe/offset mode in raid10\n\nThe \"industry standard\" DDF format allows for a stripe/offset layout where\ndata is duplicated on different stripes. e.g.\n\n A B C D\n D A B C\n E F G H\n H E F G\n\n(columns are drives, rows are stripes, LETTERS are chunks of data).\n\nThis is similar to raid10\u0027s \u0027far\u0027 mode, but not quite the same. So enhance\n\u0027far\u0027 mode with a \u0027far/offset\u0027 option which follows the layout of DDFs\nstripe/offset.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "7c7546ccf6463edbeee8d9aac6de7be1cd80d08a", "tree": "56c1f734db9f8a66a7c8c5ef11fb35e07dbb2f91", "parents": [ "5fd6c1dce06ec24ef3de20fe0c7ecf2ba9fe5ef9" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Mon Jun 26 00:27:41 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Jun 26 09:58:37 2006 -0700" }, "message": "[PATCH] md: allow a linear array to have drives added while active\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "5fd6c1dce06ec24ef3de20fe0c7ecf2ba9fe5ef9", "tree": "bd7cc8c22615e8622d3d63b7fc68dcc3ac1964de", "parents": [ "a8a55c387da28d67d98f56e4f5021462cb61f7a6" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Mon Jun 26 00:27:40 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Jun 26 09:58:37 2006 -0700" }, "message": "[PATCH] md: allow checkpoint of recovery with version-1 superblock\n\nFor a while we have had checkpointing of resync. The version-1 superblock\nallows recovery to be checkpointed as well, and this patch implements that.\n\nDue to early carelessness we need to add a feature flag to signal that the\nrecovery_offset field is in use, otherwise older kernels would assume that a\npartially recovered array is in fact fully recovered.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "16a53ecc35f2a80dc285be2e769768847d89ca37", "tree": "19d005f19af68e9b98efaf16885bb60498f540c1", "parents": [ "16f17b39f385212b73278a76d482cdcaaebe6c02" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Mon Jun 26 00:27:38 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Jun 26 09:58:37 2006 -0700" }, "message": "[PATCH] md: merge raid5 and raid6 code\n\nThere is a lot of commonality between raid5.c and raid6main.c. This patches\nmerges both into one module called raid456. This saves a lot of code, and\npaves the way for online raid5-\u003eraid6 migrations.\n\nThere is still duplication, e.g. between handle_stripe5 and handle_stripe6.\nThis will probably be cleaned up later.\n\nCc: \"H. Peter Anvin\" \u003chpa@zytor.com\u003e\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "8932c2e0dcae52e73430878fd8a7a7800176eada", "tree": "3b734ccaa0fb210f1fd76ff9bb6fb9700d1c4095", "parents": [ "c70810b327a247d12805554d0aa4605e257effb8" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Mon Jun 26 00:27:36 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Jun 26 09:58:36 2006 -0700" }, "message": "[PATCH] md: remove arbitrary limit on chunk size\n\nThe largest chunk size the code can support without substantial surgery is\n2^30 bytes, so make that the limit instead of an arbitrary 4Meg. Some day,\nthe \u0027chunksize\u0027 should change to a sector-shift instead of a byte-count. Then\nno limit would be needed.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "8555255f0b426858d8648c6206b70eb906cf4ec7", "tree": "3afe2ae27f6390bd6cb2350a578fafc690fa7803", "parents": [ "684753599afc76aa8f66c731bafb7204b39265b8" ], "author": { "name": "David Woodhouse", "email": "dwmw2@infradead.org", "time": "Sun Jun 18 12:14:01 2006 +0100" }, "committer": { "name": "David Woodhouse", "email": "dwmw2@infradead.org", "time": "Sun Jun 18 12:14:01 2006 +0100" }, "message": "Add generic Kbuild files for \u0027make headers_install\u0027\n\nThis adds the Kbuild files listing the files which are to be installed by\nthe \u0027headers_install\u0027 make target, in generic directories.\n\nSigned-off-by: David Woodhouse \u003cdwmw2@infradead.org\u003e\n" }, { "commit": "6f91fe88e4e28b40b4f08d99e0ea6d17b70e9567", "tree": "035ac07180e058579ee8023ed0fcb12e40315594", "parents": [ "54404e72cd3758e465fb6362f6d71e22b705c589" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Mon Apr 10 22:52:48 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Apr 11 06:18:30 2006 -0700" }, "message": "[PATCH] md: make sure 64bit fields in version-1 metadata are 64-bit aligned\n\nreshape_position is a 64bit field that was not 64bit aligned. So swap with\nnew_level.\n\nNOTE: this is a user-visible change. However:\n - The bad code has not appeared in a released kernel\n - This code is still marked \u0027experimental\u0027\n - This only affects version-1 superblock, which are not in wide use\n - These field are only used (rather than simply reported) by user-space\n tools in extemely rare circumstances : after a reshape crashes in the\n first second of the reshape process.\n\nSo I believe that, at this stage, the change is safe. Especially if people\nheed the \u0027help\u0027 message on use mdadm-2.4.1.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "df5b89b323b922f56650b4b4d7c41899b937cf19", "tree": "d1578782a9d763174474fe2db08f4ce4c6dc6218", "parents": [ "48c9c27b8bcd2a328a06151e2d5c1170db0b701b" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Mon Mar 27 01:18:20 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Mar 27 08:45:03 2006 -0800" }, "message": "[PATCH] md: Convert reconfig_sem to reconfig_mutex\n\n... being careful that mutex_trylock is inverted wrt down_trylock\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "e464eafdb4400c6d6576ba3840d8bd40340f8a96", "tree": "0c3f4003c883264ee08300c02007f06e4d1ebb91", "parents": [ "16484bf59634e25d1299761e5ed8bacf22bc6368" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Mon Mar 27 01:18:14 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Mar 27 08:45:02 2006 -0800" }, "message": "[PATCH] md: Support suspending of IO to regions of an md array\n\nThis allows user-space to access data safely. This is needed for raid5\nreshape as user-space needs to take a backup of the first few stripes before\nallowing reshape to commence.\n\nIt will also be useful in cluster-aware raid1 configurations so that all\ncluster members can leave a section of the array untouched while a\nresync/recovery happens.\n\nA \u0027start\u0027 and \u0027end\u0027 of the suspended range are written to 2 sysfs attributes.\nNote that only one range can be suspended at a time.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "63c70c4f3a30e77e6f445bd16eff7934a031ebd3", "tree": "12d2cd6cec5cd304bdf514ec8999a44c26f058ae", "parents": [ "b578d55fdd80140f657130abd85aebeb345755fb" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Mon Mar 27 01:18:13 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Mar 27 08:45:02 2006 -0800" }, "message": "[PATCH] md: Split reshape handler in check_reshape and start_reshape\n\ncheck_reshape checks validity and does things that can be done instantly -\nlike adding devices to raid1. start_reshape initiates a restriping process to\nconvert the whole array.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "b578d55fdd80140f657130abd85aebeb345755fb", "tree": "3737b88a25b3fb1e3347cd1c4c274336aee6a462", "parents": [ "f67055780caac6a99f43834795c43acf99eba6a6" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Mon Mar 27 01:18:12 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Mar 27 08:45:02 2006 -0800" }, "message": "[PATCH] md: Only checkpoint expansion progress occasionally\n\nInstead of checkpointing at each stripe, only checkpoint when a new write\nwould overwrite uncheckpointed data. Block any write to the uncheckpointed\narea. Arbitrarily checkpoint at least every 3Meg.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "f67055780caac6a99f43834795c43acf99eba6a6", "tree": "6b80e7b4cb300edb0910dbad1d840ff8e2f36ae5", "parents": [ "292695531ae4019bb15deedc121b218d1908b648" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Mon Mar 27 01:18:11 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Mar 27 08:45:01 2006 -0800" }, "message": "[PATCH] md: Checkpoint and allow restart of raid5 reshape\n\nWe allow the superblock to record an \u0027old\u0027 and a \u0027new\u0027 geometry, and a\nposition where any conversion is up to. The geometry allows for changing\nchunksize, layout and level as well as number of devices.\n\nWhen using verion-0.90 superblock, we convert the version to 0.91 while the\nconversion is happening so that an old kernel will refuse the assemble the\narray. For version-1, we use a feature bit for the same effect.\n\nWhen starting an array we check for an incomplete reshape and restart the\nreshape process if needed. If the reshape stopped at an awkward time (like\nwhen updating the first stripe) we refuse to assemble the array, and let\nuser-space worry about it.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "292695531ae4019bb15deedc121b218d1908b648", "tree": "fb205eae13c3f3410f6ea44557b1c96b075a4d44", "parents": [ "ccfcc3c10b2a5cb8fd3c918199a4ff904fc6fb3e" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Mon Mar 27 01:18:10 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Mar 27 08:45:01 2006 -0800" }, "message": "[PATCH] md: Final stages of raid5 expand code\n\nThis patch adds raid5_reshape and end_reshape which will start and finish the\nreshape processes.\n\nraid5_reshape is only enabled in CONFIG_MD_RAID5_RESHAPE is set, to discourage\naccidental use.\n\nRead the \u0027help\u0027 for the CONFIG_MD_RAID5_RESHAPE entry.\n\nand Make sure that you have backups, just in case.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ccfcc3c10b2a5cb8fd3c918199a4ff904fc6fb3e", "tree": "0c86fe6ba0f0bafd76f86f81b7425d6d497664aa", "parents": [ "7ecaa1e6a1ad69862e9980b6c777e11f26c4782d" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Mon Mar 27 01:18:09 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Mar 27 08:45:01 2006 -0800" }, "message": "[PATCH] md: Core of raid5 resize process\n\nThis patch provides the core of the resize/expand process.\n\nsync_request notices if a \u0027reshape\u0027 is happening and acts accordingly.\n\nIt allocated new stripe_heads for the next chunk-wide-stripe in the target\ngeometry, marking them STRIPE_EXPANDING.\n\nThen it finds which stripe heads in the old geometry can provide data needed\nby these and marks them STRIPE_EXPAND_SOURCE. This causes stripe_handle to\nread all blocks on those stripes.\n\nOnce all blocks on a STRIPE_EXPAND_SOURCE stripe_head are read, any that are\nneeded are copied into the corresponding STRIPE_EXPANDING stripe_head. Once a\nSTRIPE_EXPANDING stripe_head is full, it is marks STRIPE_EXPAND_READY and then\nis written out and released.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "7ecaa1e6a1ad69862e9980b6c777e11f26c4782d", "tree": "3cbd64ebc2a45f6b5ac45b0305fd3cf2c6916070", "parents": [ "ad01c9e3752f4ba4f3d99c89b7370fa4983a25b5" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Mon Mar 27 01:18:08 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Mar 27 08:45:01 2006 -0800" }, "message": "[PATCH] md: Infrastructure to allow normal IO to continue while array is expanding\n\nWe need to allow that different stripes are of different effective sizes, and\nuse the appropriate size. Also, when a stripe is being expanded, we must\nblock any IO attempts until the stripe is stable again.\n\nKey elements in this change are:\n - each stripe_head gets a \u0027disk\u0027 field which is part of the key,\n thus there can sometimes be two stripe heads of the same area of\n the array, but covering different numbers of devices. One of these\n will be marked STRIPE_EXPANDING and so won\u0027t accept new requests.\n - conf-\u003eexpand_progress tracks how the expansion is progressing and\n is used to determine whether the target part of the array has been\n expanded yet or not.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ad01c9e3752f4ba4f3d99c89b7370fa4983a25b5", "tree": "856868aa97332d6d15d4cad412e0ebe3576bb571", "parents": [ "b55e6bfcd23cb2f7249095050c649f7aea813f9f" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Mon Mar 27 01:18:07 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Mar 27 08:45:01 2006 -0800" }, "message": "[PATCH] md: Allow stripes to be expanded in preparation for expanding an array\n\nBefore a RAID-5 can be expanded, we need to be able to expand the stripe-cache\ndata structure.\n\nThis requires allocating new stripes in a new kmem_cache. If this succeeds,\nwe copy cache pages over and release the old stripes and kmem_cache.\n\nWe then allocate new pages. If that fails, we leave the stripe cache at it\u0027s\nnew size. It isn\u0027t worth the effort to shrink it back again.\n\nUnfortuanately this means we need two kmem_cache names as we, for a short\nperiod of time, we have two kmem_caches. So they are raid5/%s and\nraid5/%s-alt\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "b55e6bfcd23cb2f7249095050c649f7aea813f9f", "tree": "78c854c1eeb85d48bf0956309cc7ccfa14e9805a", "parents": [ "4588b42e9d0d0904a745c96cead66506c75bae21" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Mon Mar 27 01:18:06 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Mar 27 08:45:01 2006 -0800" }, "message": "[PATCH] md: Split disks array out of raid5 conf structure so it is easier to grow\n\nThe remainder of this batch implements raid5 reshaping. Currently the only\nshape change that is supported is added a device, but it is envisioned that\nchanging the chunksize and layout will also be supported, as well as changing\nthe level (e.g. 1-\u003e5, 5-\u003e6).\n\nThe reshape process naturally has to move all of the data in the array, and so\nshould be used with caution. It is believed to work, and some testing does\nsupport this, but wider testing would be great for increasing my confidence.\n\nYou will need a version of mdadm newer than 2.3.1 to make use of raid5 growth.\n This is because mdadm need to take a copy of a \u0027critical section\u0027 at the\nstart of the array incase there is a crash at an awkward moment. On restart,\nmdadm will restore the critical section and allow reshape to continue.\n\nI hope to release a 2.4-pre by early next week - it still needs a little more\npolishing.\n\nThis patch:\n\nPreviously the array of disk information was included in the raid5 \u0027conf\u0027\nstructure which was allocated to an appropriate size. This makes it awkward\nto change the size of that array. So we split it off into a separate\nkmalloced array which will require a little extra indexing, but is much easier\nto grow.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "9e71f9c848e669f003b1319da52f03cb8e7d7403", "tree": "3c873cce6b2d5da5237be20fe98124e8f4968d4d", "parents": [ "e9028b0ff2bad1954568604dc17725692c8524d6" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Thu Mar 23 02:59:22 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Mar 23 07:38:03 2006 -0800" }, "message": "[PATCH] DM: Fix bug: BIO_RW_BARRIER requests to md/raid1 hang.\n\nBoth R1BIO_Barrier and R1BIO_Returned are 4 !!!!\n\nThis means that barrier requests don\u0027t get returned (i.e. b_endio called)\nbecause it looks like they already have been.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nCc: \u003cstable@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "88202a0c84e1951d6630d1d557d4801a8cc5b5ef", "tree": "5a1aadc008de1ee68f40a4bb667157f248211230", "parents": [ "6d7ff7380b2e28c2807da3bf9fa614d91d15bacf" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Fri Jan 06 00:21:36 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:34:10 2006 -0800" }, "message": "[PATCH] md: allow sync-speed to be controlled per-device\n\nAlso export current (average) speed and status in sysfs.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nAcked-by: Greg KH \u003cgreg@kroah.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "4dbcdc751cb25ffca3a8374cbc5ab6de961cc545", "tree": "61d1eb6e35c0eec66e5a8610c1f57b1e6eec135c", "parents": [ "d9d166c2a9d5d01af34396793950aa695883eed4" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Fri Jan 06 00:20:52 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:34:09 2006 -0800" }, "message": "[PATCH] md: count corrected read errors per drive\n\nStore this total in superblock (As appropriate), and make it available to\nuserspace via sysfs.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nAcked-by: Greg KH \u003cgreg@kroah.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "d9d166c2a9d5d01af34396793950aa695883eed4", "tree": "6cb593cc0636476ebec9a9690aa48997510f9701", "parents": [ "8bb93aaca2062cd54cc2c58c76ee8409cae209a7" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Fri Jan 06 00:20:51 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:34:09 2006 -0800" }, "message": "[PATCH] md: allow array level to be set textually via sysfs\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nAcked-by: Greg KH \u003cgreg@kroah.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "2989ddbd6e1d9638a188311b896362c4bf7b7c25", "tree": "6dd1adb19cdff7135aadb96a309e55aed59e8be9", "parents": [ "f188593ee7af8c71755d2df269a7a5f62c4b695e" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Fri Jan 06 00:20:43 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:34:07 2006 -0800" }, "message": "[PATCH] md: make a couple of names in md.c static\n\n.. because they aren\u0027t used outside md.c\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "1345b1d8adbdeceb1c871d9a4af5e2a700b341c6", "tree": "0da1db7d273752ad5281db415e9245f3f3a63383", "parents": [ "7dd5d34c6c2da04e8cd0732e08b33cd3359e4bae" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Fri Jan 06 00:20:40 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:34:07 2006 -0800" }, "message": "[PATCH] md: define and use safe_put_page for md\n\nmd sometimes call put_page on NULL pointers (treating it like kfree). This is\nnot safe, so define and use a \u0027safe_put_page\u0027 which checks for NULL.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "2604b703b6b3db80e3c75ce472a54dfd0b7bf9f4", "tree": "8c0e985c455ff35af24fbe60d8a3f5a276034370", "parents": [ "a24a8dd858e0ba50f06a9fd8f61fe8c4fe7a8d8e" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Fri Jan 06 00:20:36 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:34:06 2006 -0800" }, "message": "[PATCH] md: remove personality numbering from md\n\nmd supports multiple different RAID level, each being implemented by a\n\u0027personality\u0027 (which is often in a separate module).\n\nThese personalities have fairly artificial \u0027numbers\u0027. The numbers\nare use to:\n 1- provide an index into an array where the various personalities\n are recorded\n 2- identify the module (via an alias) which implements are particular\n personality.\n\nNeither of these uses really justify the existence of personality numbers.\nThe array can be replaced by a linked list which is searched (array lookup\nonly happens very rarely). Module identification can be done using an alias\nbased on level rather than \u0027personality\u0027 number.\n\nThe current \u0027raid5\u0027 modules support two level (4 and 5) but only one\npersonality. This slight awkwardness (which was handled in the mapping from\nlevel to personality) can be better handled by allowing raid5 to register 2\npersonalities.\n\nWith this change in place, the core md module does not need to have an\nexhaustive list of all possible personalities, so other personalities can be\nadded independently.\n\nThis patch also moves the check for chunksize being non-zero into the -\u003erun\nroutines for the personalities that need it, rather than having it in core-md.\n This has a side effect of allowing \u0027faulty\u0027 and \u0027linear\u0027 not to have a\nchunk-size set.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "fccddba060f2b4916a30aa27acc3d03b01bb981e", "tree": "92fbb81ab3b1fdbbe8de9ba2ebb91ac68c57b2a0", "parents": [ "9ffae0cf3ea02f75d163922accfd3e592d87adde" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Fri Jan 06 00:20:33 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:34:06 2006 -0800" }, "message": "[PATCH] md: tidy up raid5/6 hash table code\n\n- replace open-coded hash chain with hlist macros\n\n- Fix hash-table size at one page - it is already quite generous, so there\n will never be a need to use multiple pages, so no need for __get_free_pages\n\nNo functional change.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "0eb3ff12aa8a12538ef681dc83f4361636a0699f", "tree": "e5d4b8353362cefd096a4b1ee1a8f473c01169b6", "parents": [ "4443ae10ca15d07922ceda622f03db8865fa3d13" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Fri Jan 06 00:20:29 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:34:05 2006 -0800" }, "message": "[PATCH] md: raid10 read-error handling - resync and read-only\n\nAdd in correct read-error handling for resync and read-only situations.\n\nWhen read-only, we don\u0027t over-write, so we need to mark the failed drive in\nthe r10_bio so we don\u0027t re-try it. During resync, we always read all blocks,\nso if there is a read error, we simply over-write it with the good block that\nwe found (assuming we found one).\n\nNote that the recovery case still isn\u0027t handled in an interesting way. There\nis nothing useful to do for the 2-copies case. If there are 3 or more copies,\nthen we could try reading from one of the non-missing copies, but this is a\nbit complicated and very rarely would be used, so I\u0027m leaving it for now.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "4443ae10ca15d07922ceda622f03db8865fa3d13", "tree": "f1f0a6a82142effbdde93913d53596aeeacc9dc4", "parents": [ "220946c9018de74b952446e3a4dff1bfd4cbf310" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Fri Jan 06 00:20:28 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:34:05 2006 -0800" }, "message": "[PATCH] md: auto-correct correctable read errors in raid10\n\nLargely just a cross-port from raid1.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "9910f16af35419a5382fa7850eecc220103036fa", "tree": "3b5145b8a706e03a6f2b4da4bd84fe98c83de31a", "parents": [ "cf30a473a02901fe4db37abc0b0fa26dd5ba3f72" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Fri Jan 06 00:20:24 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:34:04 2006 -0800" }, "message": "[PATCH] md: fix up some rdev rcu locking in raid5/6\n\nThere is this \"FIXME\" comment with a typo in it!! that been annoying me for\ndays, so I just had to remove it.\n\nconf-\u003edisks[i].rdev should only be accessed if\n - we know we hold a reference or\n - the mddev-\u003ereconfig_sem is down or\n - we have a rcu_readlock\n\nhandle_stripe was referencing rdev in three places without any of these. For\nthe first two, get an rcu_readlock. For the last, the same access\n(md_sync_acct call) is made a little later after the rdev has been claimed\nunder and rcu_readlock, if R5_Syncio is set. So just use that access...\nHowever R5_Syncio isn\u0027t really needed as the \u0027syncing\u0027 variable contains the\nsame information. So use that instead.\n\nIssues, comment, and fix are identical in raid5 and raid6.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "cf30a473a02901fe4db37abc0b0fa26dd5ba3f72", "tree": "3fa967963e174913826943f0f98e63c60032d07d", "parents": [ "69382e85371c232df71524137a806b9c210ec021" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Fri Jan 06 00:20:23 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:34:04 2006 -0800" }, "message": "[PATCH] md: handle errors when read-only\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ddaf22abaa831763e75775e6d4c7693504237997", "tree": "4f6ba4cb056f8c7cea82c7d548769b879d0fb405", "parents": [ "d69762e98456b71167865db9e33e732a28dd36ab" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Fri Jan 06 00:20:19 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:34:03 2006 -0800" }, "message": "[PATCH] md: attempt to auto-correct read errors in raid1\n\nOn a read-error we suspend the array, then synchronously read the block from\nother arrays until we find one where we can read it. Then we try writing the\ngood data back everywhere and make sure it works. If any write or subsequent\nread fails, only then do we fail the device out of the array.\n\nTo be able to suspend the array, we need to also keep track of how many\nrequests are queued for handling by raid1d.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ca65b73bd9c301d243df93780f7b26579e6c9204", "tree": "1ca8157e11033989ee94c20b1f2d4c936f9dc09c", "parents": [ "6cce3b23f6f8e974c00af7a9b88f1d413ba368a8" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Fri Jan 06 00:20:17 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:34:03 2006 -0800" }, "message": "[PATCH] md: fix raid6 resync check/repair code\n\nraid6 currently does not check the P/Q syndromes when doing a resync, it just\ncalculates the correct value and writes it. Doing the check can reduce writes\n(often to 0) for a resync, and it is needed to properly implement the\n\n echo check \u003e sync_action\n\noperation.\n\nThis patch implements the appropriate checks and tidies up some related code.\n\nIt also allows raid6 user-requested resync to bypass the intent bitmap.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6cce3b23f6f8e974c00af7a9b88f1d413ba368a8", "tree": "8c156f26a10de82b1626d74f810704cfd6f5ba2b", "parents": [ "b15c2e57f0f5bf596a19e9c5571e5b07cdfc7363" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Fri Jan 06 00:20:16 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:34:03 2006 -0800" }, "message": "[PATCH] md: write intent bitmap support for raid10\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6ff8d8ec06690f4011a6c3ad9e0759b9094f0601", "tree": "3606791ca1fb73e0263c4bb90d9c909d354bf9d4", "parents": [ "14f8d26b8ea3413b28f2cac208c9a93600fe3a80" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Fri Jan 06 00:20:15 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:34:02 2006 -0800" }, "message": "[PATCH] md: allow dirty raid[456] arrays to be started at boot\n\nSee patch to md.txt for more details\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "0a27ec96b6fb1abf867e36d7b0b681d67588767a", "tree": "4db5d9b8ef02b417fc2077d65311e2ea7cda5ce0", "parents": [ "17999be4aa408e7ff3b9d32c735649676567a3cd" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Fri Jan 06 00:20:13 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:34:02 2006 -0800" }, "message": "[PATCH] md: improve raid10 \"IO Barrier\" concept\n\nraid10 needs to put up a barrier to new requests while it does resync or other\nbackground recovery. The code for this is currently open-coded, slighty\nobscure by its use of two waitqueues, and not documented.\n\nThis patch gathers all the related code into 4 functions, and includes a\ncomment which (hopefully) explains what is happening.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "17999be4aa408e7ff3b9d32c735649676567a3cd", "tree": "14f9fd4ef0299f16274ce2980baef7b96f111bea", "parents": [ "ac81b2ee45eb811fdb0aa1cfb71d468d944d00ce" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Fri Jan 06 00:20:12 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:34:01 2006 -0800" }, "message": "[PATCH] md: improve raid1 \"IO Barrier\" concept\n\nraid1 needs to put up a barrier to new requests while it does resync or other\nbackground recovery. The code for this is currently open-coded, slighty\nobscure by its use of two waitqueues, and not documented.\n\nThis patch gathers all the related code into 4 functions, and includes a\ncomment which (hopefully) explains what is happening.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "787453c2397edcc3261efebb661739acd8c38547", "tree": "41855815ebfb6332485ac1ca30b43308c66da0e0", "parents": [ "fd9d49cac46f5758d513ccf831b599dd4412546f" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Tue Nov 08 21:39:43 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 07:56:40 2005 -0800" }, "message": "[PATCH] md: complete conversion of md to use kthreads\n\nThere are a few loose ends following the conversion of md to use kthreads:\n\n- Some fields in mdk_thread_t that aren\u0027t needed (kthreads does it\u0027s own\n completion and manages it\u0027s own name).\n\n- thread-\u003erun is now never NULL, so no need to check\n\n- Some tests for signal_pending that aren\u0027t needed (As we don\u0027t use signals\n to stop threads any more)\n\n- Some flush_signals are not needed\n\n- Some waits are interruptible and don\u0027t need to be.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a9701a30470856408d08657eb1bd7ae29a146190", "tree": "eb6ea8c82fdc1b50bf56abadeee63a935034cf27", "parents": [ "bd926c63b7a6843d3ce2728396c0891e54fce5c4" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Tue Nov 08 21:39:34 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 07:56:38 2005 -0800" }, "message": "[PATCH] md: support BIO_RW_BARRIER for md/raid1\n\nWe can only accept BARRIER requests if all slaves handle\nbarriers, and that can, of course, change with time....\n\nSo we keep track of whether the whole array seems safe for barriers,\nand also whether each individual rdev handles barriers.\n\nWe initially assumes barriers are OK.\n\nWhen writing the superblock we try a barrier, and if that fails, we flag\nthings for no-barriers. This will usually clear the flags fairly quickly.\n\nIf writing the superblock finds that BIO_RW_BARRIER is -ENOTSUPP, we need to\nresubmit, so introduce function \"md_super_wait\" which waits for requests to\nfinish, and retries ENOTSUPP requests without the barrier flag.\n\nWhen writing the real raid1, write requests which were BIO_RW_BARRIER but\nwhich aresn\u0027t supported need to be retried. So raid1d is enhanced to do this,\nand when any bio write completes (i.e. no retry needed) we remove it from the\nr1bio, so that devices needing retry are easy to find.\n\nWe should hardly ever get -ENOTSUPP errors when writing data to the raid.\nIt should only happen if:\n 1/ the device used to support BARRIER, but now doesn\u0027t. Few devices\n change like this, though raid1 can!\nor\n 2/ the array has no persistent superblock, so there was no opportunity to\n pre-test for barriers when writing the superblock.\n\nSigned-off-by: Neil Brown \u003cneilb@cse.unsw.edu.au\u003e\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "bd926c63b7a6843d3ce2728396c0891e54fce5c4", "tree": "38f7083a733e9b31efe69616c5fa3448c74c1320", "parents": [ "b2d444d7ad975d555bb919601bcdc0e58975a40e" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Tue Nov 08 21:39:32 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 07:56:38 2005 -0800" }, "message": "[PATCH] md: make md on-disk bitmaps not host-endian\n\nCurrent bitmaps use set_bit et.al and so are host-endian, which means\nnot-portable. Oops.\n\nDefine a new version number (4) for which bitmaps are little-endian.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "b2d444d7ad975d555bb919601bcdc0e58975a40e", "tree": "963a29258af95f05dd28d9de0180ac9ef533aeed", "parents": [ "ba22dcbf106338a5c46d6979f9b19564faae3d49" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Tue Nov 08 21:39:31 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 07:56:38 2005 -0800" }, "message": "[PATCH] md: convert \u0027faulty\u0027 and \u0027in_sync\u0027 fields to bits in \u0027flags\u0027 field\n\nThis has the advantage of removing the confusion caused by \u0027rdev_t\u0027 and\n\u0027mddev_t\u0027 both having \u0027in_sync\u0027 fields.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ba22dcbf106338a5c46d6979f9b19564faae3d49", "tree": "4caae4532cda0412d2446eca8b036d4e0df447f8", "parents": [ "007583c9253fed363a0bd71b039e9b40a0f6855e" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Tue Nov 08 21:39:31 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 07:56:38 2005 -0800" }, "message": "[PATCH] md: improvements to raid5 handling of read errors\n\nTwo refinements to the \u0027attempt-overwrite-on-read-error\u0027 mechanism.\n1/ If the array is read-only, don\u0027t attempt an over-write.\n2/ If there are more than max_nr_stripes read errors on a device with\n no success, fail the drive. This will make sure a dead\n drive will be eventually kicked even when we aren\u0027t trying\n to rewrite (which would normally kick a dead drive more quickly.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "007583c9253fed363a0bd71b039e9b40a0f6855e", "tree": "f47d3fd94830ae2c09d7d821e8a57ba46ecb13bc", "parents": [ "31399d9e56abeec4d819f07eefc97f30b5d5ed75" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Tue Nov 08 21:39:30 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 07:56:38 2005 -0800" }, "message": "[PATCH] md: change raid5 sysfs attribute to not create a new directory\n\nThere isn\u0027t really a need for raid5 attributes to be an a subdirectory,\nso this patch moves them from\n /sys/block/mdX/md/raid5/attribute\nto\n /sys/block/mdX/md/attribute\n\nThis suggests that all md personalities should co-operate about\nnamespace usage, but that shouldn\u0027t be a problem.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "9d88883e68f404d5581bd391713ceef470ea53a9", "tree": "09217a737ca91fb1d105df601741a61e141d4946", "parents": [ "24dd469d728dae07f40c5d79ea6dedd38cdf1a30" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Tue Nov 08 21:39:26 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 07:56:37 2005 -0800" }, "message": "[PATCH] md: teach raid5 the difference between \u0027check\u0027 and \u0027repair\u0027.\n\nWith this, raid5 can be asked to check parity without repairing it. It also\nkeeps a count of the number of incorrect parity blocks found (mismatches) and\nreports them through sysfs.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nCc: Greg KH \u003cgreg@kroah.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "24dd469d728dae07f40c5d79ea6dedd38cdf1a30", "tree": "3975aaeaa6c1cd77a2d4b06184ad3bd0175a44a5", "parents": [ "3f294f4fb6f2ba887b717674da26c21f3d57f3fc" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Tue Nov 08 21:39:26 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 07:56:37 2005 -0800" }, "message": "[PATCH] md: allow a manual resync with md\n\nYou can trigger a \u0027check\u0027 with\n echo check \u003e /sys/block/mdX/md/scan_mode\nor a check-and-repair errors with\n echo repair \u003e /sys/block/mdX/md/scan_mode\n\nand read the current state from the same file.\n\nNote: personalities need to know the different between \u0027check\u0027 and \u0027repair\u0027,\nbut don\u0027t yet. Until they do, \u0027check\u0027 will be the same as \u0027repair\u0027 and will\njust do a normal resync pass.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nCc: Greg KH \u003cgreg@kroah.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "3f294f4fb6f2ba887b717674da26c21f3d57f3fc", "tree": "fd73f58a4d5c7261994127b0c46f04e33ee26d66", "parents": [ "86e6ffdd243a06663713e637ee683fb27dce8e0c" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Tue Nov 08 21:39:25 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 07:56:37 2005 -0800" }, "message": "[PATCH] md: add kobject/sysfs support to raid5\n\n/sys/block/mdX/md/raid5/\ncontains raid5-related attributes.\nCurrently\n stripe_cache_size\nis number of entries in stripe cache, and is settable.\n stripe_cache_active\nis number of active entries, and in only readable.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nCc: Greg KH \u003cgreg@kroah.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "86e6ffdd243a06663713e637ee683fb27dce8e0c", "tree": "d6bc5f26aff6b1a506ad04d8d605d92cfd19162f", "parents": [ "eae1701fbd264cfc7efbaf7cd4cd999760070e27" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Tue Nov 08 21:39:24 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 07:56:37 2005 -0800" }, "message": "[PATCH] md: extend md sysfs support to component devices.\n\nEach device in an md array how has a corresponding\n /sys/block/mdX/md/devNN/\ndirectory which can contain attributes. Currently there is only \u0027state\u0027 which\nsummarises the state, nd \u0027super\u0027 which has a copy of the superblock, and\n\u0027block\u0027 which is a symlink to the block device.\n\nAlso, /sys/block/mdX/md/rdNN represents slot \u0027NN\u0027 in the array, and is a\nsymlink to the relevant \u0027devNN\u0027. Obviously spare devices do not have a slot\nin the array, and so don\u0027t have such a symlink.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nCc: Greg KH \u003cgreg@kroah.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "eae1701fbd264cfc7efbaf7cd4cd999760070e27", "tree": "6605cca37d4c605217b7accffe7f94f81d37f0dd", "parents": [ "4e5314b56a7ea11c7a5f2b8418992b2f49648a25" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Tue Nov 08 21:39:23 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 07:56:36 2005 -0800" }, "message": "[PATCH] md: initial sysfs support for md\n\nStart using kobjects in mddevs, and provide a couple of simple attributes\n(level and disks). Attributes live in\n /sys/block/mdX/md/attr-name\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nCc: Greg KH \u003cgreg@kroah.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "4e5314b56a7ea11c7a5f2b8418992b2f49648a25", "tree": "58b0c604f4f4e55523d2c93971f79d80e406b9ce", "parents": [ "703ebe86a999861e833be4015aaf552837e9613a" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Tue Nov 08 21:39:22 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 07:56:36 2005 -0800" }, "message": "[PATCH] md: better handling of readerrors with raid5.\n\nThis patch changes the behaviour of raid5 when it gets a read error.\nInstead of just failing the device, it tried to find out what should have\nbeen there, and writes it over the bad block. For some media-errors, this\nhas a reasonable chance of fixing the error. If the write succeeds, and a\nsubsequent read succeeds as well, raid5 decided the address is OK and\nconitnues.\n\nInstead of failing a drive on read-error, we attempt to re-write the block,\nand then re-read. If that all works, we allow the device to remain in the\narray.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "72626685dc66d455742a7f215a0535c551628b9e", "tree": "91e19a61a5a3b782007132b6b2e353e8936dd656", "parents": [ "0002b2718dd04da67c21f8a7830de8d95a9b0345" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Fri Sep 09 16:23:54 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Sep 09 16:39:12 2005 -0700" }, "message": "[PATCH] md: add write-intent-bitmap support to raid5\n\nMost awkward part of this is delaying write requests until bitmap updates have\nbeen flushed.\n\nTo achieve this, we have a sequence number (seq_flush) which is incremented\neach time the raid5 is unplugged.\n\nIf the raid thread notices that this has changed, it flushes bitmap changes,\nand assigned the value of seq_flush to seq_write.\n\nWhen a write request arrives, it is given the number from seq_write, and that\nwrite request may not complete until seq_flush is larger than the saved seq\nnumber.\n\nWe have a new queue for storing stripes which are waiting for a bitmap flush\nand an extra flag for stripes to record if the write was \u0027degraded\u0027 and so\nshould not clear the a bit in the bitmap.\n\nSigned-off-by: Neil Brown \u003cneilb@cse.unsw.edu.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "0002b2718dd04da67c21f8a7830de8d95a9b0345", "tree": "c84f916df71293e0e15643a8a07d9508d1404395", "parents": [ "773f7834425e83144c95fbbc553ced3c2b74b828" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Fri Sep 09 16:23:53 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Sep 09 16:39:12 2005 -0700" }, "message": "[PATCH] md: limit size of sb read/written to appropriate amount\n\nversion-1 superblocks are not (normally) 4K long, and can be of variable size.\n Writing the full 4K can cause corruption (but only in non-default\nconfigurations).\n\nWith this patch the super-block-flavour can choose a size to read, and set a\nsize to write based on what it finds.\n\nSigned-off-by: Neil Brown \u003cneilb@cse.unsw.edu.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "773f7834425e83144c95fbbc553ced3c2b74b828", "tree": "0552618b3a63395e2a69c69f177c7bdef92576a9", "parents": [ "ab904d634625ef8dc590240b7ee06c7b724e636b" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Fri Sep 09 16:23:53 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Sep 09 16:39:12 2005 -0700" }, "message": "[PATCH] md: remove old cruft from md_k.h header file\n\nThese inlines haven\u0027t been used for ages, they should go.\n\nSigned-off-by: Neil Brown \u003cneilb@cse.unsw.edu.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "71c0805cb48462c99fbe0e5fcc6c12d7b9929c09", "tree": "a6234c60b036ba05807bf649ffa7cf56eda13574", "parents": [ "7b1e35f6d666693e8f376ce02242efca3ec09aaf" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Fri Sep 09 16:23:51 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Sep 09 16:39:11 2005 -0700" }, "message": "[PATCH] md: allow md to load a superblock with feature-bit \u00271\u0027 set\n\nAs this is used to flag an internal bitmap.\n\nAlso, introduce symbolic names for feature bits.\n\nSigned-off-by: Neil Brown \u003cneilb@cse.unsw.edu.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "15945fee6f09bff1f86b1a735b5888dc59cf38e3", "tree": "ed2f66ceccfa30867035e7ba7be46159e97e4e4d", "parents": [ "4b6d287f627b5fb6a49f78f9e81649ff98c62bb7" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Fri Sep 09 16:23:47 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Sep 09 16:39:10 2005 -0700" }, "message": "[PATCH] md: support md/linear array with components greater than 2 terabytes.\n\nlinear currently uses division by the size of the smallest componenet device\nto find which device a request goes to. If that smallest device is larger\nthan 2 terabytes, then the division will not work on some systems.\n\nSo we introduce a pre-shift, and take care not to make the hash table too\nlarge, much like the code in raid0.\n\nAlso get rid of conf-\u003enr_zones, which is not needed.\n\nSigned-off-by: Neil Brown \u003cneilb@cse.unsw.edu.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "4b6d287f627b5fb6a49f78f9e81649ff98c62bb7", "tree": "7b6cbc6a997e25a7fb6185da7129e539c4ffda8b", "parents": [ "8ddf9efe6708f3674f0ddfeb6425fd27bea109a2" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Fri Sep 09 16:23:47 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Sep 09 16:39:10 2005 -0700" }, "message": "[PATCH] md: add write-behind support for md/raid1\n\nIf a device is flagged \u0027WriteMostly\u0027 and the array has a bitmap, and the\nbitmap superblock indicates that write_behind is allowed, then write_behind is\nenabled for WriteMostly devices.\n\nWrite requests will be acknowledges as complete to the caller (via b_end_io)\nwhen all non-WriteMostly devices have completed the write, but will not be\ncleared from the bitmap until all devices complete.\n\nThis requires memory allocation to make a local copy of the data being\nwritten. If there is insufficient memory, then we fall-back on normal write\nsemantics.\n\nSigned-Off-By: Paul Clements \u003cpaul.clements@steeleye.com\u003e\nSigned-off-by: Neil Brown \u003cneilb@cse.unsw.edu.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "8ddf9efe6708f3674f0ddfeb6425fd27bea109a2", "tree": "90862c8fa9f04cf98423b3da1b2c5d1f01a7310d", "parents": [ "36fa30636fb84b209210299684e1be66d9e58217" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Fri Sep 09 16:23:45 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Sep 09 16:39:10 2005 -0700" }, "message": "[PATCH] md: support write-mostly device in raid1\n\nThis allows a device in a raid1 to be marked as \"write mostly\". Read requests\nwill only be sent if there is no other option.\n\nSigned-off-by: Neil Brown \u003cneilb@cse.unsw.edu.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "36fa30636fb84b209210299684e1be66d9e58217", "tree": "28a7473238932f1e7ade1a5a5ec67a113b6d6205", "parents": [ "6a07997fc34ac15a1c5dc650285d79b7604a2276" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Fri Sep 09 16:23:45 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Sep 09 16:39:10 2005 -0700" }, "message": "[PATCH] md: all hot-add and hot-remove of md intent logging bitmaps\n\nBoth file-bitmaps and superblock bitmaps are supported.\n\nIf you add a bitmap file on the array device, you lose.\n\nThis introduces a \u0027default_bitmap_offset\u0027 field in mddev, as the ioctl used\nfor adding a superblock bitmap doesn\u0027t have room for giving an offset. Later,\nthis value will be setable via sysfs.\n\nSigned-off-by: Neil Brown \u003cneilb@cse.unsw.edu.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6b8b3e8a8b3e62b4209eaa36697e3c9df457e196", "tree": "8b537e5b358cbe93cd8e8ea54a9281d56a7ce205", "parents": [ "e3b9703e27aab3839dcdb76b00d98428b67d25b0" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Thu Aug 04 12:53:35 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Aug 04 13:00:54 2005 -0700" }, "message": "[PATCH] md: make sure md bitmap updates are flushed when array is stopped.\n\nThe recent change to never ignore the bitmap, revealed that the bitmap isn\u0027t\nbegin flushed properly when an array is stopped.\n\nWe call bitmap_daemon_work three times as there is a three-stage pipeline for\nflushing updates to the bitmap file.\n\nSigned-off-by: Neil Brown \u003cneilb@cse.unsw.edu.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6a806c510de490318846b53bbfec463d02ca274b", "tree": "7018abfd9db7856708bc2c578f48c30eab8855b1", "parents": [ "a1287ba1ba810aae1f8b81e32560d5d3bf3ff9f0" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Fri Jul 15 03:56:35 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jul 15 09:54:51 2005 -0700" }, "message": "[PATCH] md/raid1: clear bitmap when fullsync completes\n\nWe need to be careful differentiating between a resync of a complete array,\nin which we can clear the bitmap, and a resync of a degraded array, in\nwhich we cannot.\n\nThis patch cleans all that up.\n\nCc: Paul Clements \u003cpaul.clements@steeleye.com\u003e\nSigned-off-by: Neil Brown \u003cneilb@cse.unsw.edu.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "39730960d94306d7be414e8d54f4e5c071af1278", "tree": "e12516ecea53d782f845717f53ffa304be69aa37", "parents": [ "7bfa19f2748000d646dbdf8f48258cfe1d257b52" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Tue Jun 21 17:17:28 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Tue Jun 21 19:07:47 2005 -0700" }, "message": "[PATCH] Two small fixes for md verion-1 superblocks.\n\n1/ Must typecast int to (sector_t) before inverting or we\n might not invert enough bits.\n\n2/ When \"bitmap_offset\" was added to mdp_superblock_1, we didn\u0027t increase\n the count of words-used (96 to 100).\n\nSigned-off-by: Neil Brown \u003cneilb@cse.unsw.edu.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "7bfa19f2748000d646dbdf8f48258cfe1d257b52", "tree": "2f7e6b0a0cba4ac01d7809224023a7dc73b94840", "parents": [ "a654b9d8f851f4ca02649d5825cbe6c608adb10c" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Tue Jun 21 17:17:28 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Tue Jun 21 19:07:47 2005 -0700" }, "message": "[PATCH] md: allow md to update multiple superblocks in parallel.\n\ncurrently, md updates all superblocks (one on each device) in series. It\nwaits for one write to complete before starting the next. This isn\u0027t a big\nproblem as superblock updates don\u0027t happen that often.\n\nHowever it is neater to do it in parallel, and if the drives in the array have\ngone to \"sleep\" after a period of idleness, then waking them is parallel is\nfaster (and someone else should be worrying about power drain).\n\nFuther, we will need parallel superblock updates for a future patch which\nkeeps the intent-logging bitmap near the superblock.\n\nAlso remove the silly code that retired superblock updates 100 times. This\nsimply never made sense.\n\nSigned-off-by: Neil Brown \u003cneilb@cse.unsw.edu.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a654b9d8f851f4ca02649d5825cbe6c608adb10c", "tree": "747301647f619a9f1dd48f4d6be96b5e35d2484c", "parents": [ "3d310eb7b3df1252e8595d059d982b0a9825a137" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Tue Jun 21 17:17:27 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Tue Jun 21 19:07:47 2005 -0700" }, "message": "[PATCH] md: allow md intent bitmap to be stored near the superblock.\n\nThis provides an alternate to storing the bitmap in a separate file. The\nbitmap can be stored at a given offset from the superblock. Obviously the\ncreator of the array must make sure this doesn\u0027t intersect with data....\nAfter is good for version-0.90 superblocks.\n\nSigned-off-by: Neil Brown \u003cneilb@cse.unsw.edu.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "3d310eb7b3df1252e8595d059d982b0a9825a137", "tree": "9bca5e7eaa437d60010c1745b9aeb9592439d482", "parents": [ "41158c7eb22312cfaa256744e1553bb4042ff085" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Tue Jun 21 17:17:26 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Tue Jun 21 19:07:46 2005 -0700" }, "message": "[PATCH] md: fix deadlock due to md thread processing delayed requests.\n\nBefore completing a \u0027write\u0027 the md superblock might need to be updated.\nThis is best done by the md_thread.\n\nThe current code schedules this up and queues the write request for later\nhandling by the md_thread.\n\nHowever some personalities (Raid5/raid6) will deadlock if the md_thread\ntries to submit requests to its own array.\n\nSo this patch changes things so the processes submitting the request waits\nfor the superblock to be written and then submits the request itself.\n\nThis fixes a recently-created deadlock in raid5/raid6\n\nSigned-off-by: Neil Brown \u003cneilb@cse.unsw.edu.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "41158c7eb22312cfaa256744e1553bb4042ff085", "tree": "21c28e0630d66fc32d758993299a78088a846562", "parents": [ "289e99e8ed8f36e386bf7de49947311c17ae1482" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Tue Jun 21 17:17:25 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Tue Jun 21 19:07:46 2005 -0700" }, "message": "[PATCH] md: optimise reconstruction when re-adding a recently failed drive.\n\nWhen an array is degraded, bit in the intent-bitmap are never cleared. So if\na recently failed drive is re-added, we only need to reconstruct the block\nthat are still reflected in the bitmap.\n\nThis patch adds support for this re-adding.\n\nSigned-off-by: Neil Brown \u003cneilb@cse.unsw.edu.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "191ea9b2c7cc3ebbe0678834ab710d7d95ad3f9a", "tree": "25ccd0d191742f4e25f37784370520d254aacc12", "parents": [ "aa3163f81654fa057039258e32a6811147bf0c14" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Tue Jun 21 17:17:23 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Tue Jun 21 19:07:46 2005 -0700" }, "message": "[PATCH] md: raid1 support for bitmap intent logging\n\nSigned-off-by: Neil Brown \u003cneilb@cse.unsw.edu.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "77ad4bc706fe6c52ab953f31c287a6af712d080c", "tree": "6823261d0e111a93c5190ebb1f2ecd8c4905a559", "parents": [ "bfb39fba4e8cdda091f9ebee29fbb8331c4bb605" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Tue Jun 21 17:17:21 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Tue Jun 21 19:07:45 2005 -0700" }, "message": "[PATCH] md: enable the bitmap write-back daemon and wait for it.\n\nCurrently we don\u0027t wait for updates to the bitmap to be flushed to disk\nproperly. The infrastructure all there, but it isn\u0027t being used....\n\nA separate kernel thread (bitmap_writeback_daemon) is needed to wait for each\npage as we cannot get callbacks when a page write completes.\n\nSigned-off-by: Neil Brown \u003cneilb@cse.unsw.edu.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "32a7627cf3a35396a8e834faf34e38ae9f3b1309", "tree": "3fe7764f5d8e39d835a397e1099358d924b02981", "parents": [ "57afd89f98a990747445f01c458ecae64263b2f8" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Tue Jun 21 17:17:14 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Tue Jun 21 19:07:43 2005 -0700" }, "message": "[PATCH] md: optimised resync using Bitmap based intent logging\n\nWith this patch, the intent to write to some block in the array can be logged\nto a bitmap file. Each bit represents some number of sectors and is set\nbefore any update happens, and only cleared when all writes relating to all\nsectors are complete.\n\nAfter an unclean shutdown, information in this bitmap can be used to optimise\nresync - only sectors which could be out-of-sync need to be updated.\n\nAlso if a drive is removed and then added back into an array, the recovery can\nmake use of the bitmap to optimise reconstruction. This is not implemented in\nthis patch.\n\nCurrently the bitmap is stored in a file which must (obviously) be stored on a\nseparate device.\n\nThe patch only provided infrastructure. It does not update any personalities\nto bitmap intent logging.\n\nMd arrays can still be used with no bitmap file. This patch has minimal\nimpact on such arrays.\n\nSigned-off-by: Neil Brown \u003cneilb@cse.unsw.edu.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "57afd89f98a990747445f01c458ecae64263b2f8", "tree": "cab9f5941f32299bc97936e111f6552ebcee9cf6", "parents": [ "06d91a5fe0b50c9060e70bdf7786f8a3c66249db" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Tue Jun 21 17:17:13 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Tue Jun 21 19:07:43 2005 -0700" }, "message": "[PATCH] md: improve the interface to sync_request\n\n1/ change the return value (which is number-of-sectors synced)\n from \u0027int\u0027 to \u0027sector_t\u0027.\n The number of sectors is usually easily small enough to fit\n in an int, but if resync needs to abort, it may want to return\n the total number of remaining sectors, which could be large.\n Also errors cannot be returned as negative numbers now, so use\n 0 instead\n2/ Add a \u0027skipped\u0027 return parameter to allow the array to report\n that it skipped the sectors. This allows md to take this into account\n in the speed calculations.\n Currently there is no important skipping, but the bitmap-based-resync\n that is coming will use this.\n\nSigned-off-by: Neil Brown \u003cneilb@cse.unsw.edu.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "06d91a5fe0b50c9060e70bdf7786f8a3c66249db", "tree": "95a8b9228534cebb12eb31c1cc9cc0c45f685410", "parents": [ "fca4d848f0e6fafdc2b25f8a0cf1e76935f13ac2" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Tue Jun 21 17:17:12 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Tue Jun 21 19:07:43 2005 -0700" }, "message": "[PATCH] md: improve locking on \u0027safemode\u0027 and move superblock writes\n\nWhen md marks the superblock dirty before a write, it calls\ngeneric_make_request (to write the superblock) from within\ngeneric_make_request (to write the first dirty block), which could cause\nproblems later.\n\nWith this patch, the superblock write is always done by the helper thread, and\nwrite request are delayed until that write completes.\n\nAlso, the locking around marking the array dirty and writing the superblock is\nimproved to avoid possible races.\n\nSigned-off-by: Neil Brown \u003cneilb@cse.unsw.edu.au\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" } ] }