)]}' { "log": [ { "commit": "71fd5ae25d88841c08d5bbea90c0f0a12ca05509", "tree": "763ec9657bd25e4d42f1f6774faa65166364eede", "parents": [ "905e51b39a5558706a6ed883fe104de3d417050b" ], "author": { "name": "Joe Thornber", "email": "ejt@redhat.com", "time": "Wed Mar 28 18:41:27 2012 +0100" }, "committer": { "name": "Alasdair G Kergon", "email": "agk@redhat.com", "time": "Wed Mar 28 18:41:27 2012 +0100" }, "message": "dm persistent data: remove space map ref_count entries if redundant\n\nSave space by removing entries from the space map ref_count tree if\nthey\u0027re no longer needed.\n\nRef counts are stored in two places: a bitmap if the ref_count is\nbelow 3, or a btree of uint32_t if 3 or above.\n\nWhen a ref_count that was above 3 drops below we can remove it from\nthe tree and save some metadata space. This removal was commented out\nbefore because I was unsure why this was causing under-populated btree\nnodes. Earlier patches have fixed this issue.\n\nSigned-off-by: Joe Thornber \u003cejt@redhat.com\u003e\nSigned-off-by: Mike Snitzer \u003csnitzer@redhat.com\u003e\nSigned-off-by: Alasdair G Kergon \u003cagk@redhat.com\u003e\n" }, { "commit": "a3aefb395e4f321c8b1314c88f1123624adcf743", "tree": "cedb3dbc643009cdba3c927b499e32e3247f7e5e", "parents": [ "466891f9959b500e037836737c064a72f2bbe8cf" ], "author": { "name": "Joe Thornber", "email": "ejt@redhat.com", "time": "Wed Mar 28 18:41:25 2012 +0100" }, "committer": { "name": "Alasdair G Kergon", "email": "agk@redhat.com", "time": "Wed Mar 28 18:41:25 2012 +0100" }, "message": "dm persistent data: remove redundant value_size arg from value_ptr\n\nNow that the value_size is held within every node of the btrees we can\nremove this argument from value_ptr().\n\nFor the last few months a BUG_ON has been checking this argument is\nthe same as that held in the node. No issues were reported. So this\nis a safe change.\n\nSigned-off-by: Joe Thornber \u003cejt@redhat.com\u003e\nSigned-off-by: Mike Snitzer \u003csnitzer@redhat.com\u003e\nSigned-off-by: Alasdair G Kergon \u003cagk@redhat.com\u003e\n" }, { "commit": "b0988900bae9ecf968a8a8d086a9eec671a9517a", "tree": "9dd34ec6f4563b78ac454f3691757dece46c1926", "parents": [ "6f94a4c45a6f744383f9f695dde019998db3df55" ], "author": { "name": "Joe Thornber", "email": "ejt@redhat.com", "time": "Wed Mar 28 18:41:23 2012 +0100" }, "committer": { "name": "Alasdair G Kergon", "email": "agk@redhat.com", "time": "Wed Mar 28 18:41:23 2012 +0100" }, "message": "dm persistent data: fix btree rebalancing after remove\n\nWhen we remove an entry from a node we sometimes rebalance with it\u0027s\ntwo neighbours. This wasn\u0027t being done correctly; in some cases\nentries have to move all the way from the right neighbour to the left\nneighbour, or vice versa. This patch pretty much re-writes the\nbalancing code to fix it.\n\nThis code is barely used currently; only when you delete a thin\ndevice, and then only if you have hundreds of them in the same pool.\nOnce we have discard support, which removes mappings, this will be used\nmuch more heavily.\n\nSigned-off-by: Joe Thornber \u003cejt@redhat.com\u003e\nCc: stable@kernel.org\nSigned-off-by: Mike Snitzer \u003csnitzer@redhat.com\u003e\nSigned-off-by: Alasdair G Kergon \u003cagk@redhat.com\u003e\n" }, { "commit": "a84450604d0fe08b6a2335efbedede18d3d7cc75", "tree": "013be8cd17b787a3051d1d614f794f30573467f8", "parents": [ "6f66263f8ebe1fb1f138de41ca9aa0a4860b30d0" ], "author": { "name": "Stephen Rothwell", "email": "sfr@canb.auug.org.au", "time": "Tue Nov 01 20:27:43 2011 +1100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Nov 07 10:29:10 2011 -0800" }, "message": "device-mapper: using EXPORT_SYBOL in dm-space-map-checker.c needs export.h\n\nReported-by: Witold Baryluk \u003cbaryluk@smp.if.uj.edu.pl\u003e\nSigned-off-by: Stephen Rothwell \u003csfr@canb.auug.org.au\u003e\nSigned-off-by: Paul Gortmaker \u003cpaul.gortmaker@windriver.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1944ce60fe1e92506d3347f4d8e10a82b17096e4", "tree": "1da72242c0a525e6a46c3ddc9693d88816362a03", "parents": [ "0c073e35550879fd133bc3fe509df5b88da51278" ], "author": { "name": "Paul Gortmaker", "email": "paul.gortmaker@windriver.com", "time": "Wed Sep 28 18:29:32 2011 -0400" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Nov 07 10:29:09 2011 -0800" }, "message": "drivers/md: change module.h -\u003e export.h in persistent-data/dm-*\n\nFor the files which are not themselves modular, we can change\nthem to include only the smaller export.h since all they are\ndoing is looking for EXPORT_SYMBOL.\n\nReported-by: Stephen Rothwell \u003csfr@canb.auug.org.au\u003e\nSigned-off-by: Paul Gortmaker \u003cpaul.gortmaker@windriver.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3241b1d3e0aaafbfcd320f4d71ade629728cc4f4", "tree": "499461f724d4db3d7118641f4a20f5be23549edd", "parents": [ "95d402f057f2e208e4631893f6cd4a59c7c05e41" ], "author": { "name": "Joe Thornber", "email": "thornber@redhat.com", "time": "Mon Oct 31 20:19:11 2011 +0000" }, "committer": { "name": "Alasdair G Kergon", "email": "agk@redhat.com", "time": "Mon Oct 31 20:19:11 2011 +0000" }, "message": "dm: add persistent data library\n\nThe persistent-data library offers a re-usable framework for the storage\nand management of on-disk metadata in device-mapper targets.\n\nIt\u0027s used by the thin-provisioning target in the next patch and in an\nupcoming hierarchical storage target.\n\nFor further information, please read\nDocumentation/device-mapper/persistent-data.txt\n\nSigned-off-by: Joe Thornber \u003cthornber@redhat.com\u003e\nSigned-off-by: Mike Snitzer \u003csnitzer@redhat.com\u003e\nSigned-off-by: Alasdair G Kergon \u003cagk@redhat.com\u003e\n" } ] }