)]}' { "log": [ { "commit": "8a5e9cf1d6626586ff08e49f400a006a9f0c3275", "tree": "3a3135209c0dcb5dd2899b8afcc1701e2fdcf732", "parents": [ "39730960d94306d7be414e8d54f4e5c071af1278" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Tue Jun 21 17:17:29 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Tue Jun 21 19:07:47 2005 -0700" }, "message": "[PATCH] md: make sure md/bitmap doesn\u0027t try to write a page with active writeback\n\nDue to the use of write-behind, it is possible for md to write a page to\nthe bitmap file that is still completing writeback. This is not allowed.\n\nWith this patch, we detect those cases and either force a sync write, or\nback off and try later, as appropriate.\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": "aa3163f81654fa057039258e32a6811147bf0c14", "tree": "6b0fc95fc696ebdb1f5acc78df253b6c242de430", "parents": [ "77ad4bc706fe6c52ab953f31c287a6af712d080c" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Tue Jun 21 17:17:22 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Tue Jun 21 19:07:45 2005 -0700" }, "message": "[PATCH] md: don\u0027t skip bitmap pages due to lack of bit that we just cleared.\n\nWhen looking for pages that need cleaning we skip pages that don\u0027t have\nBITMAP_PAGE_CLEAN set. But if it is the \u0027current\u0027 page we will have cleared\nthat bit ourselves, so skipping it is wrong. So: move the \u0027skip this page\u0027\ninside \u0027if page !\u003d lastpage\u0027.\n\nAlso fold call of file_page_offset into the one place where the value (bit) is\nused.\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": "bfb39fba4e8cdda091f9ebee29fbb8331c4bb605", "tree": "74f710c2c80d2de365107eb33fa7297368b99b1f", "parents": [ "a2cff26ad18a8794722fb0d3c019d93e14fce3f1" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Tue Jun 21 17:17:20 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Tue Jun 21 19:07:45 2005 -0700" }, "message": "[PATCH] md: check return value of write_page, rather than ignore it\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": "a2cff26ad18a8794722fb0d3c019d93e14fce3f1", "tree": "1895a52cfeeb7b4987b1d2cb97f6cd4b84305f57", "parents": [ "fc7ca163a448dfb23f44c9a47ebc8cbe52cf49df" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Tue Jun 21 17:17:20 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Tue Jun 21 19:07:45 2005 -0700" }, "message": "[PATCH] md: improve debug-printing of bitmap superblock.\n\n- report sync_size properly - need /2 to convert sectors to KB\n- move everything over 2 spaces to allow proper spelling of\n \"events cleared\".\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": "fc7ca163a448dfb23f44c9a47ebc8cbe52cf49df", "tree": "f13c36fa8a161b2d3721311067941a4d4a464cba", "parents": [ "cdbb4cc2e5c30895709163d8544057db21ee23e0" ], "author": { "name": "akpm@osdl.org", "email": "akpm@osdl.org", "time": "Tue Jun 21 17:17:19 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Tue Jun 21 19:07:45 2005 -0700" }, "message": "[PATCH] md printk fix\n\nA u64 is not an unsigned long long. On power4 it is `long\u0027, and printk warns.\n\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "cdbb4cc2e5c30895709163d8544057db21ee23e0", "tree": "ca5037bfa8c51f61fe2c7627f2cbed37697af882", "parents": [ "bc7f77de2cd81718dd789a2cfe68a7cf1b48f016" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Tue Jun 21 17:17:18 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Tue Jun 21 19:07:44 2005 -0700" }, "message": "[PATCH] md: make sure md bitmap is cleared on a clean start.\n\nAs the array-wide clean bit (in the superblock) is set more agressively than\nthe bits in the bitmap are cleared, it is possible to have an array which is\nclean despite there being bits set in the bitmap.\n\nThese bits will currently never get cleared, as they can only be cleared by a\nresync pass, which never happens.\n\nNo, when reading bits from disk, be aware of whether the whole array is known\nto be in sync, and act accordingly.\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": "bc7f77de2cd81718dd789a2cfe68a7cf1b48f016", "tree": "a338f066db763fbc29cff388c5a443332ca67739", "parents": [ "d80a138c013f81c1b9383c83983934e34e380a2d" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Tue Jun 21 17:17:17 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Tue Jun 21 19:07:44 2005 -0700" }, "message": "[PATCH] md: minor code rearrangement in bitmap_init_from_disk\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": "d80a138c013f81c1b9383c83983934e34e380a2d", "tree": "883556cee59c122c318844169d2c9a944e0e1846", "parents": [ "5f40402d96cb21df912e5bbb3fffa5e1afc81e98" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Tue Jun 21 17:17:17 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Tue Jun 21 19:07:44 2005 -0700" }, "message": "[PATCH] md: print correct pid for newly created bitmap-writeback-daemon.\n\nThe debugging message printed the wrong pid, which didn\u0027t help remove bugs....\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": "78d742d876bdf7263d0d966fbe9593559fd904a7", "tree": "00e700128a9ab1152958a53da1ee6ef48e358543", "parents": [ "32a7627cf3a35396a8e834faf34e38ae9f3b1309" ], "author": { "name": "NeilBrown", "email": "neilb@cse.unsw.edu.au", "time": "Tue Jun 21 17:17:15 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Tue Jun 21 19:07:43 2005 -0700" }, "message": "[PATCH] md: a couple of tidyups relating to the bitmap file.\n\n1/ When init from disk, it is a BUG if there is nowhere\n to init from,\n2/ use seq_path to print path in /proc/mdstat\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" } ] }