)]}' { "log": [ { "commit": "a9e9dc24bbc3e084450a22cf4fb82f5f5d4cbeea", "tree": "c6d18d969b76f61ebbfa777caf2706af5873a98f", "parents": [ "451a9ebf653d28337ba53ed5b4b70b0b9543cca1" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Wed Apr 15 22:10:27 2009 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Wed Apr 22 08:35:10 2009 +0200" }, "message": "bio: use bio_kmalloc() in copy/map functions\n\nImpact: remove possible deadlock condition\n\nThere is no reason to use mempool backed allocation for map functions.\nAlso, because kern mapping is used inside LLDs (e.g. for EH), using\nmempool backed allocation can lead to deadlock under extreme\nconditions (mempool already consumed by the time a request reached EH\nand requests are blocked on EH).\n\nSwitch copy/map functions to bio_kmalloc().\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "451a9ebf653d28337ba53ed5b4b70b0b9543cca1", "tree": "ab203dfb628623483a1aeb7ead564ea35ad21d29", "parents": [ "cd0aca2d550f238d80ba58e7dcade4ea3d0a3aa7" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Wed Apr 15 19:50:51 2009 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Wed Apr 22 08:35:10 2009 +0200" }, "message": "bio: fix bio_kmalloc()\n\nImpact: fix bio_kmalloc() and its destruction path\n\nbio_kmalloc() was broken in two ways.\n\n* bvec_alloc_bs() first allocates bvec using kmalloc() and then\n ignores it and allocates again like non-kmalloc bvecs.\n\n* bio_kmalloc_destructor() didn\u0027t check for and free bio integrity\n data.\n\nThis patch fixes the above problems. kmalloc patch is separated out\nfrom bio_alloc_bioset() and allocates the requested number of bvecs as\ninline bvecs.\n\n* bio_alloc_bioset() no longer takes NULL @bs. None other than\n bio_kmalloc() used it and outside users can\u0027t know how it was\n allocated anyway.\n\n* Define and use BIO_POOL_NONE so that pool index check in\n bvec_free_bs() triggers if inline or kmalloc allocated bvec gets\n there.\n\n* Relocate destructors on top of each allocation function so that how\n they\u0027re used is more clear.\n\nJens Axboe suggested allocating bvecs inline.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "86c824b9434e764d01489688e4e38aee43b93fcf", "tree": "0aa776b6fb5af04e9392c3f49842eeee97a5bd74", "parents": [ "61e0d47c33cc371f725bcda4a47ae0efe652dba8" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Wed Apr 15 09:00:07 2009 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Wed Apr 15 12:10:12 2009 +0200" }, "message": "bio: add documentation to bio_alloc()\n\nExplain that with __GFP_WAIT set it will not fail, and that the caller\nmust never allocate more than 1 bio at the time.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "c7eee1b836ab5e504cbd2b7f3892ea468bd52a16", "tree": "e9bc6170d8086e57b10e7514459b9efd2c40ebf2", "parents": [ "5243ef8b54a927cae23216253e4e3f03af6f1446" ], "author": { "name": "Alberto Bertogli", "email": "albertito@blitiri.com.ar", "time": "Sun Jan 25 23:36:14 2009 -0200" }, "committer": { "name": "Jiri Kosina", "email": "jkosina@suse.cz", "time": "Mon Mar 30 15:22:02 2009 +0200" }, "message": "trivial: Fix typo in bio_split()\u0027s documentation\n\nSigned-off-by: Alberto Bertogli \u003calbertito@blitiri.com.ar\u003e\nSigned-off-by: Jiri Kosina \u003cjkosina@suse.cz\u003e\n" }, { "commit": "6d2a78e783416ba99e36beb1d4395b785b34e867", "tree": "5e1b772cfbfb8b5d089a9808a0232749f7ddf8be", "parents": [ "32ca163c9cdb33151d79e95a7cf244f62b5d4418" ], "author": { "name": "Martin K. Petersen", "email": "martin.petersen@oracle.com", "time": "Tue Mar 10 08:27:39 2009 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Tue Mar 24 12:35:17 2009 +0100" }, "message": "block: add private bio_set for bio integrity allocations\n\nThe integrity bio allocation needs its own bio_set to avoid violating\nthe mempool allocation rules and risking deadlocks.\n\nSigned-off-by: Martin K. Petersen \u003cmartin.petersen@oracle.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "a7fcd37cdcb47806fb8a9070f006ee34061defa6", "tree": "3a983ae22551ce8d0aa062d84d8165df862811fa", "parents": [ "34053979fb1d923217685cf166349f1899980581" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri Dec 05 16:10:29 2008 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Tue Mar 24 12:35:16 2009 +0100" }, "message": "block: don\u0027t create bio_vec slabs of less than the inline number\n\nIf we don\u0027t have CONFIG_BLK_DEV_INTEGRITY set, then we don\u0027t have\nany external dependencies on the bio_vec slabs. So don\u0027t create\nthe ones that we will inline anyway.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "34053979fb1d923217685cf166349f1899980581", "tree": "05e4c9dd49fe841ecb5c6556aa3a5deaf05fab75", "parents": [ "8e0ee43bc2c3e19db56a4adaa9a9b04ce885cd84" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Feb 21 11:16:36 2009 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Tue Mar 24 12:35:16 2009 +0100" }, "message": "block: cleanup bio_alloc_bioset()\n\nthis warning (which got fixed by commit b2bf968):\n\n fs/bio.c: In function ‘bio_alloc_bioset’:\n fs/bio.c:305: warning: ‘p’ may be used uninitialized in this function\n\nTriggered because the code flow in bio_alloc_bioset() is correct\nbut a bit complex for the compiler to see through.\n\nStreamline it a bit - this also makes the code a tiny bit more compact:\n\n text\t data\t bss\t dec\t hex\tfilename\n 7540\t 256\t 40\t 7836\t 1e9c\tbio.o.before\n 7539\t 256\t 40\t 7835\t 1e9b\tbio.o.after\n\nAlso remove an older compiler-warnings annotation from this function,\nit\u0027s not needed.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "059ea3318c8ede71851a52b4359fbf1ab0cec301", "tree": "29a70645e27947d820884b1249d0d7f26b8ea0d8", "parents": [ "87092698c665e0a358caf9825ae13114343027e8" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Mon Mar 09 10:42:45 2009 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Sat Mar 14 21:06:52 2009 +0100" }, "message": "block: fix memory leak in bio_clone()\n\nIf bio_integrity_clone() fails, bio_clone() returns NULL without freeing\nthe newly allocated bio.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "87092698c665e0a358caf9825ae13114343027e8", "tree": "4003d12a76e1cd5b50d275a0aef536d4a86d0092", "parents": [ "041b62374c7fedc11a8a1eeda2868612d3d1436c" ], "author": { "name": "un\u0027ichi Nomura", "email": "j-nomura@ce.jp.nec.com", "time": "Mon Mar 09 10:40:52 2009 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Sat Mar 14 21:06:51 2009 +0100" }, "message": "block: Add gfp_mask parameter to bio_integrity_clone()\n\nStricter gfp_mask might be required for clone allocation.\nFor example, request-based dm may clone bio in interrupt context\nso it has to use GFP_ATOMIC.\n\nSigned-off-by: Kiyoshi Ueda \u003ck-ueda@ct.jp.nec.com\u003e\nSigned-off-by: Jun\u0027ichi Nomura \u003cj-nomura@ce.jp.nec.com\u003e\nAcked-by: Martin K. Petersen \u003cmartin.petersen@oracle.com\u003e\nCc: Alasdair G Kergon \u003cagk@redhat.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "b2bf96833c5782befc3e7700f791fde754a47b01", "tree": "b38745750c948b519e4c46bb9589d3a61c6359f4", "parents": [ "169d418b127b98a3e464e9c4b807ad083760f98c" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Feb 19 08:50:26 2009 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Feb 26 10:45:48 2009 +0100" }, "message": "block: fix bogus gcc warning for uninitialized var usage\n\nNewer gcc throw this warning:\n\n fs/bio.c: In function ?bio_alloc_bioset?:\n fs/bio.c:305: warning: ?p? may be used uninitialized in this function\n\nsince it cannot figure out that \u0027p\u0027 is only ever used if \u0027bs\u0027 is non-NULL.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "a60e78e57a17d55bbd5a96da16fe9649d364b987", "tree": "5b7a7c5977ee8862166f743d1aede56278c4971b", "parents": [ "93dbb393503d53cd226e5e1f0088fe8f4dbaa2b8" ], "author": { "name": "Subhash Peddamallu", "email": "subhash.peddamallu@gmail.com", "time": "Mon Feb 16 10:27:07 2009 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Wed Feb 18 10:32:01 2009 +0100" }, "message": "fs/bio: bio_alloc_bioset: pass right object ptr to mempool_free\n\nWhen freeing from bio pool use right ptr to account for bs-\u003efront_pad,\ninstead of bio ptr,\n\nSigned-off-by: Subhash Peddamallu \u003csubhash.peddamallu@gmail.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "97ae77a1cd332c7b011d71315c8faabce6840c72", "tree": "fc243ca28ea474eaf81729079eeb3b259cd1b81b", "parents": [ "56c451f4b583ccdf80c9e676179c9cb49de86745" ], "author": { "name": "FUJITA Tomonori", "email": "fujita.tomonori@lab.ntt.co.jp", "time": "Thu Dec 18 14:49:38 2008 +0900" }, "committer": { "name": "James Bottomley", "email": "James.Bottomley@HansenPartnership.com", "time": "Fri Jan 02 11:10:35 2009 -0600" }, "message": "[SCSI] block: make blk_rq_map_user take a NULL user-space buffer for WRITE\n\nThe commit 818827669d85b84241696ffef2de485db46b0b5e (block: make\nblk_rq_map_user take a NULL user-space buffer) extended\nblk_rq_map_user to accept a NULL user-space buffer with a READ\ncommand. It was necessary to convert sg to use the block layer mapping\nAPI.\n\nThis patch extends blk_rq_map_user again for a WRITE command. It is\nnecessary to convert st and osst drivers to use the block layer\napping API.\n\nSigned-off-by: FUJITA Tomonori \u003cfujita.tomonori@lab.ntt.co.jp\u003e\nAcked-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nSigned-off-by: James Bottomley \u003cJames.Bottomley@HansenPartnership.com\u003e\n" }, { "commit": "56c451f4b583ccdf80c9e676179c9cb49de86745", "tree": "7ad9daeafb88e3c4390bf7a2db0c203fe2642728", "parents": [ "e623ddb4e940b266adc77ba1cc28a3554aa90e79" ], "author": { "name": "FUJITA Tomonori", "email": "fujita.tomonori@lab.ntt.co.jp", "time": "Thu Dec 18 14:49:37 2008 +0900" }, "committer": { "name": "James Bottomley", "email": "James.Bottomley@HansenPartnership.com", "time": "Fri Jan 02 11:10:08 2009 -0600" }, "message": "[SCSI] block: fix the partial mappings with struct rq_map_data\n\nThis fixes bio_copy_user_iov to properly handle the partial mappings\nwith struct rq_map_data (which only sg uses for now but st and osst\nwill shortly). It adds the offset member to struct rq_map_data and\nchanges blk_rq_map_user to update it so that bio_copy_user_iov can add\nan appropriate page frame via bio_add_pc_page().\n\nSigned-off-by: FUJITA Tomonori \u003cfujita.tomonori@lab.ntt.co.jp\u003e\nAcked-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nSigned-off-by: James Bottomley \u003cJames.Bottomley@HansenPartnership.com\u003e\n" }, { "commit": "e623ddb4e940b266adc77ba1cc28a3554aa90e79", "tree": "62c245b32720573d97718795b0c8165cad967b05", "parents": [ "4f10aae0d1a285df6b16bf6ca5abd366140fd371" ], "author": { "name": "FUJITA Tomonori", "email": "fujita.tomonori@lab.ntt.co.jp", "time": "Thu Dec 18 14:49:36 2008 +0900" }, "committer": { "name": "James Bottomley", "email": "James.Bottomley@HansenPartnership.com", "time": "Fri Jan 02 11:09:41 2009 -0600" }, "message": "[SCSI] block: fix bio_add_page misuse with rq_map_data\n\nThis fixes bio_add_page misuse in bio_copy_user_iov with rq_map_data,\nwhich only sg uses now.\n\nrq_map_data carries page frames for bio_add_pc_page. bio_copy_user_iov\nuses bio_add_pc_page with a larger size than PAGE_SIZE. It\u0027s clearly\nwrong.\n\nSigned-off-by: FUJITA Tomonori \u003cfujita.tomonori@lab.ntt.co.jp\u003e\nAcked-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nSigned-off-by: James Bottomley \u003cJames.Bottomley@HansenPartnership.com\u003e\n" }, { "commit": "d3f761104b097738932afcc310fbbbbfb007ef92", "tree": "5acda986824cab2a8c54690258a49df61b898389", "parents": [ "f735b5eeb9fcbb001e0cf2a5296b19c4bbaec55f" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Tue Dec 23 12:46:21 2008 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Mon Dec 29 08:29:53 2008 +0100" }, "message": "bio: get rid of bio_vec clearing\n\nWe don\u0027t need to clear the memory used for adding bio_vec entries,\nsince nobody should be looking at members unitialized. Any valid\nuse should be below bio-\u003ebi_vcnt, and that members up until that count\nmust be valid since they were added through bio_add_page().\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "392ddc32982a5c661dd90dd49a3cb37f1c68b782", "tree": "614b8e857a70ce479bcbbf24af66a56b7723efc8", "parents": [ "bb799ca0202a360fa74d5f17039b9100caebdde7" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Tue Dec 23 12:42:54 2008 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Mon Dec 29 08:29:50 2008 +0100" }, "message": "bio: add support for inlining a number of bio_vecs inside the bio\n\nWhen we go and allocate a bio for IO, we actually do two allocations.\nOne for the bio itself, and one for the bi_io_vec that holds the\nactual pages we are interested in.\n\nThis feature inlines a definable amount of io vecs inside the bio\nitself, so we eliminate the bio_vec array allocation for IO\u0027s up\nto a certain size. It defaults to 4 vecs, which is typically 16k\nof IO.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "bb799ca0202a360fa74d5f17039b9100caebdde7", "tree": "048b6cedfd2644edd82a606db6d9e8b19d31328b", "parents": [ "1b4344986926da324b5cd10b683e5a1a5e1b7db3" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Wed Dec 10 15:35:05 2008 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Mon Dec 29 08:29:23 2008 +0100" }, "message": "bio: allow individual slabs in the bio_set\n\nInstead of having a global bio slab cache, add a reference to one\nin each bio_set that is created. This allows for personalized slabs\nin each bio_set, so that they can have bios of different sizes.\n\nThis means we can personalize the bios we return. File systems may\nwant to embed the bio inside another structure, to avoid allocation\nmore items (and stuffing them in -\u003ebi_private) after the get a bio.\nOr we may want to embed a number of bio_vecs directly at the end\nof a bio, to avoid doing two allocations to return a bio. This is now\npossible.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "1b4344986926da324b5cd10b683e5a1a5e1b7db3", "tree": "f196fad09555f32e4464df2ea4c8fea17ad99e76", "parents": [ "7ff9345ffac56743b5001561bc2dc1e041b79149" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Wed Oct 22 20:32:58 2008 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Mon Dec 29 08:28:46 2008 +0100" }, "message": "bio: move the slab pointer inside the bio_set\n\nIn preparation for adding differently sized bios.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "7ff9345ffac56743b5001561bc2dc1e041b79149", "tree": "aede8c4b4b52c7808cdea7ec039655accffd2298", "parents": [ "a31a97381cdf7dceb03b797a8faf9bc8a01c65d1" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Dec 11 11:53:43 2008 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Mon Dec 29 08:28:46 2008 +0100" }, "message": "bio: only mempool back the largest bio_vec slab cache\n\nWe only very rarely need the mempool backing, so it makes sense to\nget rid of all but one of the mempool in a bio_set. So keep the\nlargest bio_vec count mempool so we can always honor the largest\nallocation, and \"upgrade\" callers that fail.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "0bfc24559d7945506184d86739fe365a181f06b7", "tree": "5c152128faac7080f4802ce03d1c6b6bc7173227", "parents": [ "5f3ea37c7716db4e894a480e0c18b24399595b6b" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Nov 26 11:59:56 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Nov 26 13:04:35 2008 +0100" }, "message": "blktrace: port to tracepoints, update\n\nPort to the new tracepoints API: split DEFINE_TRACE() and DECLARE_TRACE()\nsites. Spread them out to the usage sites, as suggested by\nMathieu Desnoyers.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\n" }, { "commit": "5f3ea37c7716db4e894a480e0c18b24399595b6b", "tree": "db6784635d024894f641b340dcd7c5060c446077", "parents": [ "509dceef6470442d8c7b8a43ec34125205840b3c" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Oct 30 08:34:33 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Nov 26 12:13:34 2008 +0100" }, "message": "blktrace: port to tracepoints\n\nThis was a forward port of work done by Mathieu Desnoyers, I changed it to\nencode the \u0027what\u0027 parameter on the tracepoint name, so that one can register\ninterest in specific events and not on classes of events to then check the\n\u0027what\u0027 parameter.\n\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "6feef531f55cf4a20fd9eb39f5352e5745203603", "tree": "2c52b800edcbdf01abefcf27e900985c087f1b36", "parents": [ "ad3316bf4eeb53c89164f759767f911072b56203" ], "author": { "name": "Denis ChengRq", "email": "crquan@gmail.com", "time": "Thu Oct 09 08:57:05 2008 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:57:05 2008 +0200" }, "message": "block: mark bio_split_pool static\n\nSince all bio_split calls refer the same single bio_split_pool, the bio_split\nfunction can use bio_split_pool directly instead of the mempool_t parameter;\n\nthen the mempool_t parameter can be removed from bio_split param list, and\nbio_split_pool is only referred in fs/bio.c file, can be marked static.\n\nSigned-off-by: Denis ChengRq \u003ccrquan@gmail.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "ad3316bf4eeb53c89164f759767f911072b56203", "tree": "12caa0194f385c58e4543ad864a58dff02f33a47", "parents": [ "b02739b01c5309d74a59859f2ce92c931d1f1955" ], "author": { "name": "Martin K. Petersen", "email": "martin.petersen@oracle.com", "time": "Wed Oct 01 22:42:53 2008 -0400" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:22 2008 +0200" }, "message": "block: Find bio sector offset given idx and offset\n\nHelper function to find the sector offset in a bio given bvec index\nand page offset.\n\nSigned-off-by: Martin K. Petersen \u003cmartin.petersen@oracle.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "0a0d96b03a1f3bfd6bc3ea08008699e8e59fccd9", "tree": "59cbbcb691a76121fba8d7af74d89558296d5834", "parents": [ "3e6053d76dcbd92b2f9f4ad5ece9bce83149523e" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Sep 11 13:17:37 2008 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:17 2008 +0200" }, "message": "block: add bio_kmalloc()\n\nNot all callers need (or want!) the mempool backing guarentee, it\nessentially means that you can only use bio_alloc() for short allocations\nand not for preallocating some bio\u0027s at setup or init time.\n\nSo add bio_kmalloc() which does the same thing as bio_alloc(), except\nit just uses kmalloc() as the backing instead of the bio mempools.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "818827669d85b84241696ffef2de485db46b0b5e", "tree": "694d09728733e65d604bf3e1f13679db73fc1d9a", "parents": [ "839e96afba87117befd39cf4e43f156edc8047a7" ], "author": { "name": "FUJITA Tomonori", "email": "fujita.tomonori@lab.ntt.co.jp", "time": "Tue Sep 02 16:20:19 2008 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:11 2008 +0200" }, "message": "block: make blk_rq_map_user take a NULL user-space buffer\n\nThis patch changes blk_rq_map_user to accept a NULL user-space buffer\nwith a READ command if rq_map_data is not NULL. Thus a caller can pass\npage frames to lk_rq_map_user to just set up a request and bios with\npage frames propely. bio_uncopy_user (called via blk_rq_unmap_user)\ndoesn\u0027t copy data to user space with such request.\n\nSigned-off-by: FUJITA Tomonori \u003cfujita.tomonori@lab.ntt.co.jp\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "4d8ab62e087d9300883b82c2662e73e6eef803a3", "tree": "379f6c1a3dfb165ce1c604d34ddb42ac1447d832", "parents": [ "10db10d144c0248f285242f79daf6b9de6b00a62" ], "author": { "name": "FUJITA Tomonori", "email": "fujita.tomonori@lab.ntt.co.jp", "time": "Thu Aug 28 15:05:57 2008 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:10 2008 +0200" }, "message": "bio: convert bio_copy_kern to use bio_copy_user\n\nbio_copy_kern and bio_copy_user are very similar. This converts\nbio_copy_kern to use bio_copy_user.\n\nSigned-off-by: FUJITA Tomonori \u003cfujita.tomonori@lab.ntt.co.jp\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "152e283fdfea0cd11e297d982378b55937842dde", "tree": "a97a57108353f167a1e2911e8ee09c527ef42d3e", "parents": [ "a3bce90edd8f6cafe3f63b1a943800792e830178" ], "author": { "name": "FUJITA Tomonori", "email": "fujita.tomonori@lab.ntt.co.jp", "time": "Thu Aug 28 16:17:06 2008 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:10 2008 +0200" }, "message": "block: introduce struct rq_map_data to use reserved pages\n\nThis patch introduces struct rq_map_data to enable bio_copy_use_iov()\nuse reserved pages.\n\nCurrently, bio_copy_user_iov allocates bounce pages but\ndrivers/scsi/sg.c wants to allocate pages by itself and use\nthem. struct rq_map_data can be used to pass allocated pages to\nbio_copy_user_iov.\n\nThe current users of bio_copy_user_iov simply passes NULL (they don\u0027t\nwant to use pre-allocated pages).\n\nSigned-off-by: FUJITA Tomonori \u003cfujita.tomonori@lab.ntt.co.jp\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Douglas Gilbert \u003cdougg@torque.net\u003e\nCc: Mike Christie \u003cmichaelc@cs.wisc.edu\u003e\nCc: James Bottomley \u003cJames.Bottomley@HansenPartnership.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "a3bce90edd8f6cafe3f63b1a943800792e830178", "tree": "c07a2962987e57997b4ff6f6c63febe1feaa0a9c", "parents": [ "45333d5a31296d0af886d94f1d08f128231cab8e" ], "author": { "name": "FUJITA Tomonori", "email": "fujita.tomonori@lab.ntt.co.jp", "time": "Thu Aug 28 16:17:05 2008 +0900" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:10 2008 +0200" }, "message": "block: add gfp_mask argument to blk_rq_map_user and blk_rq_map_user_iov\n\nCurrently, blk_rq_map_user and blk_rq_map_user_iov always do\nGFP_KERNEL allocation.\n\nThis adds gfp_mask argument to blk_rq_map_user and blk_rq_map_user_iov\nso sg can use it (sg always does GFP_ATOMIC allocation).\n\nSigned-off-by: FUJITA Tomonori \u003cfujita.tomonori@lab.ntt.co.jp\u003e\nSigned-off-by: Douglas Gilbert \u003cdougg@torque.net\u003e\nCc: Mike Christie \u003cmichaelc@cs.wisc.edu\u003e\nCc: James Bottomley \u003cJames.Bottomley@HansenPartnership.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "c7c22e4d5c1fdebfac4dba76de7d0338c2b0d832", "tree": "ecc3d2517b3471ccc35d4cb4e3b48d4b57205061", "parents": [ "18887ad910e56066233a07fd3cfb2fa11338b782" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Sat Sep 13 20:26:01 2008 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:09 2008 +0200" }, "message": "block: add support for IO CPU affinity\n\nThis patch adds support for controlling the IO completion CPU of\neither all requests on a queue, or on a per-request basis. We export\na sysfs variable (rq_affinity) which, if set, migrates completions\nof requests to the CPU that originally submitted it. A bio helper\n(bio_set_completion_cpu()) is also added, so that queuers can ask\nfor completion on that specific CPU.\n\nIn testing, this has been show to cut the system time by as much\nas 20-40% on synthetic workloads where CPU affinity is desired.\n\nThis requires a little help from the architecture, so it\u0027ll only\nwork as designed for archs that are using the new generic smp\nhelper infrastructure.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "5df97b91b5d7ed426034fcc84cb6e7cf682b8838", "tree": "727b9fb778f72d2b1ff44c007fb5209bacf67f4a", "parents": [ "b8b3e16cfe6435d961f6aaebcfd52a1ff2a988c5" ], "author": { "name": "Mikulas Patocka", "email": "mpatocka@redhat.com", "time": "Fri Aug 15 10:20:02 2008 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:03 2008 +0200" }, "message": "drop vmerge accounting\n\nRemove hw_segments field from struct bio and struct request. Without virtual\nmerge accounting they have no purpose.\n\nSigned-off-by: Mikulas Patocka \u003cmpatocka@redhat.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "b8b3e16cfe6435d961f6aaebcfd52a1ff2a988c5", "tree": "5832535c112c0504590256cb8a0bcabc6e282be3", "parents": [ "6a421c1dc94b12923294a359822346f12492de5e" ], "author": { "name": "Mikulas Patocka", "email": "mpatocka@redhat.com", "time": "Fri Aug 15 10:15:19 2008 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 09 08:56:03 2008 +0200" }, "message": "block: drop virtual merging accounting\n\nRemove virtual merge accounting.\n\nSigned-off-by: Mikulas Patocka \u003cmpatocka@redhat.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "aefcc28a3a63ac33a298777aa50ba43641c75241", "tree": "d72a23323e80b45da16ea916c9abe03d6a3f6bfd", "parents": [ "76029ff37f31dad64641489c610d98955217bb68" ], "author": { "name": "FUJITA Tomonori", "email": "fujita.tomonori@lab.ntt.co.jp", "time": "Mon Aug 25 20:36:08 2008 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Wed Aug 27 09:50:19 2008 +0200" }, "message": "bio: fix __bio_copy_iov() handling of bio-\u003ebv_len\n\nThe commit c5dec1c3034f1ae3503efbf641ff3b0273b64797 introduced\n__bio_copy_iov() to add bounce support to blk_rq_map_user_iov.\n\n__bio_copy_iov() uses bio-\u003ebv_len to copy data for READ commands after\nthe completion but it doesn\u0027t work with a request that partially\ncompleted. SCSI always completes a PC request as a whole but seems\nsome don\u0027t.\n\nSigned-off-by: FUJITA Tomonori \u003cfujita.tomonori@lab.ntt.co.jp\u003e\nCc: stable@kernel.org\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "76029ff37f31dad64641489c610d98955217bb68", "tree": "e8f729fa6288676be357295141a0950f171a62d8", "parents": [ "48fd4f93a00eac844678629f2f00518e146ed30d" ], "author": { "name": "FUJITA Tomonori", "email": "fujita.tomonori@lab.ntt.co.jp", "time": "Mon Aug 25 20:36:08 2008 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Wed Aug 27 09:50:19 2008 +0200" }, "message": "bio: fix bio_copy_kern() handling of bio-\u003ebv_len\n\nThe commit 68154e90c9d1492d570671ae181d9a8f8530da55 introduced\nbio_copy_kern() to add bounce support to blk_rq_map_kern.\n\nbio_copy_kern() uses bio-\u003ebv_len to copy data for READ commands after\nthe completion but it doesn\u0027t work with a request that partially\ncompleted. SCSI always completes a PC request as a whole but seems\nsome don\u0027t.\n\nThis patch fixes bio_copy_kern to handle the above case. As\nbio_copy_user does, bio_copy_kern uses struct bio_map_data to store\nstruct bio_vec.\n\nSigned-off-by: FUJITA Tomonori \u003cfujita.tomonori@lab.ntt.co.jp\u003e\nReported-by: Nix \u003cnix@esperi.org.uk\u003e\nTested-by: Nix \u003cnix@esperi.org.uk\u003e\nCc: stable@kernel.org\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "1ac0ae062cecd37587f5b951089f90e1d9d91769", "tree": "87c622f207ade7854abeb077acacd3fcd5761501", "parents": [ "ba198efb5ef4e5f4927a18ff95a58f40c58cbaa9" ], "author": { "name": "Denis ChengRq", "email": "crquan@gmail.com", "time": "Mon Aug 04 11:56:30 2008 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Wed Aug 06 12:30:04 2008 +0200" }, "message": "bio: make use of bvec_nr_vecs\n\nSince introduced in 7ba1ba12eee, it should be made use of.\n\nSigned-off-by: Denis ChengRq \u003ccrquan@gmail.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "f5dd33c494a427b1d1a3b574de5c9e511c888864", "tree": "fc6f61ffe488fe044f9e167b31b1c4ecd5f3f54c", "parents": [ "8174c430e445a93016ef18f717fe570214fa38bf" ], "author": { "name": "Nick Piggin", "email": "npiggin@suse.de", "time": "Fri Jul 25 19:45:25 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:06 2008 -0700" }, "message": "dio: use get_user_pages_fast\n\nUse get_user_pages_fast in the common/generic block and fs direct IO paths.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Dave Kleikamp \u003cshaggy@austin.ibm.com\u003e\nCc: Andy Whitcroft \u003capw@shadowen.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Andi Kleen \u003candi@firstfloor.org\u003e\nCc: Dave Kleikamp \u003cshaggy@austin.ibm.com\u003e\nCc: Badari Pulavarty \u003cpbadari@us.ibm.com\u003e\nCc: Zach Brown \u003czach.brown@oracle.com\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nReviewed-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "cc371e66e340f35eed8dc4651c7c18e754c7fb26", "tree": "5a2d6727eb07a05999c531a90da43ab1c36b713e", "parents": [ "b24498d477a14680fc3bb3ad884fa9fa76a2d237" ], "author": { "name": "Alasdair G Kergon", "email": "agk@redhat.com", "time": "Thu Jul 03 09:53:43 2008 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Jul 03 13:21:15 2008 +0200" }, "message": "Add bvec_merge_data to handle stacked devices and -\u003emerge_bvec()\n\nWhen devices are stacked, one device\u0027s merge_bvec_fn may need to perform\nthe mapping and then call one or more functions for its underlying devices.\n\nThe following bio fields are used:\n bio-\u003ebi_sector\n bio-\u003ebi_bdev\n bio-\u003ebi_size\n bio-\u003ebi_rw using bio_data_dir()\n\nThis patch creates a new struct bvec_merge_data holding a copy of those\nfields to avoid having to change them directly in the struct bio when\ngoing down the stack only to have to change them back again on the way\nback up. (And then when the bio gets mapped for real, the whole\nexercise gets repeated, but that\u0027s a problem for another day...)\n\nSigned-off-by: Alasdair G Kergon \u003cagk@redhat.com\u003e\nCc: Neil Brown \u003cneilb@suse.de\u003e\nCc: Milan Broz \u003cmbroz@redhat.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "7ba1ba12eeef0aa7113beb16410ef8b7c748e18b", "tree": "4629aabe88bf095d58eabd2f451207695bb35b08", "parents": [ "51d654e1d885607a6edd02b337105fa5c28b6d33" ], "author": { "name": "Martin K. Petersen", "email": "martin.petersen@oracle.com", "time": "Mon Jun 30 20:04:41 2008 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Jul 03 13:21:13 2008 +0200" }, "message": "block: Block layer data integrity support\n\nSome block devices support verifying the integrity of requests by way\nof checksums or other protection information that is submitted along\nwith the I/O.\n\nThis patch implements support for generating and verifying integrity\nmetadata, as well as correctly merging, splitting and cloning bios and\nrequests that have this extra information attached.\n\nSee Documentation/block/data-integrity.txt for more information.\n\nSigned-off-by: Martin K. Petersen \u003cmartin.petersen@oracle.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "51d654e1d885607a6edd02b337105fa5c28b6d33", "tree": "64e87fa9b3b28cb10be635cf4edc76ccf39befe1", "parents": [ "a144ff09bc52ef3f3684ed23eadc9c7c0e57b3aa" ], "author": { "name": "Martin K. Petersen", "email": "martin.petersen@oracle.com", "time": "Tue Jun 17 18:59:56 2008 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Jul 03 13:21:13 2008 +0200" }, "message": "block: Globalize bio_set and bio_vec_slab\n\nMove struct bio_set and biovec_slab definitions to bio.h so they can\nbe used outside of bio.c.\n\nSigned-off-by: Martin K. Petersen \u003cmartin.petersen@oracle.com\u003e\nReviewed-by: Jeff Moyer \u003cjmoyer@redhat.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "ffee0259c9edcc4c0f06b60df51c461eeecad4c0", "tree": "c15df497b6bbe8fd7e9ed47cbfb3fba68be2e2df", "parents": [ "eeae1d48c011839d9e1cdc1e8aacf0193c9d8197" ], "author": { "name": "Randy Dunlap", "email": "randy.dunlap@oracle.com", "time": "Wed Apr 30 09:08:54 2008 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Wed May 07 18:35:03 2008 +0200" }, "message": "docbook: fix bio missing parameter\n\nFix fs/bio.c kernel-doc parameter warning:\nWarning(linux-2.6.25-git14//fs/bio.c:972): No description found for parameter \u0027reading\u0027\n\nSigned-off-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "eeae1d48c011839d9e1cdc1e8aacf0193c9d8197", "tree": "77696d424a374adf671b1afb2ed03a76a65fee48", "parents": [ "28f13702f03e527fcb979747a882cf366c489c50" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Wed May 07 13:26:27 2008 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Wed May 07 13:26:27 2008 +0200" }, "message": "block: use unitialized_var() in bio_alloc_bioset()\n\nBetter than setting idx to some random value and it silences the\nsame bogus gcc warning.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "68154e90c9d1492d570671ae181d9a8f8530da55", "tree": "4b4e9cfbaa587a576e7e52284c53ef99cf69ac4d", "parents": [ "657e93be356f51888f56a58d2b374caefbf2fe86" ], "author": { "name": "FUJITA Tomonori", "email": "fujita.tomonori@lab.ntt.co.jp", "time": "Fri Apr 25 12:47:50 2008 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Tue Apr 29 09:50:34 2008 +0200" }, "message": "block: add dma alignment and padding support to blk_rq_map_kern\n\nThis patch adds bio_copy_kern similar to\nbio_copy_user. blk_rq_map_kern uses bio_copy_kern instead of\nbio_map_kern if necessary.\n\nbio_copy_kern uses temporary pages and the bi_end_io callback frees\nthese pages. bio_copy_kern saves the original kernel buffer at\nbio-\u003ebi_private it doesn\u0027t use something like struct bio_map_data to\nstore the information about the caller.\n\nSigned-off-by: FUJITA Tomonori \u003cfujita.tomonori@lab.ntt.co.jp\u003e\nCc: Tejun Heo \u003chtejun@gmail.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "c5dec1c3034f1ae3503efbf641ff3b0273b64797", "tree": "d8c2d81ff2d944a0ba43e6ef7284482898af8b3b", "parents": [ "476a4813cfddf7cf159956cc0e2d3c830c1507e3" ], "author": { "name": "FUJITA Tomonori", "email": "fujita.tomonori@lab.ntt.co.jp", "time": "Fri Apr 11 12:56:49 2008 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Mon Apr 21 09:50:08 2008 +0200" }, "message": "block: convert bio_copy_user to bio_copy_user_iov\n\nThis patch enables bio_copy_user to take struct sg_iovec (renamed\nbio_copy_user_iov). bio_copy_user uses bio_copy_user_iov internally as\nbio_map_user uses bio_map_user_iov.\n\nThe major changes are:\n\n- adds sg_iovec array to struct bio_map_data\n\n- adds __bio_copy_iov that copy data between bio and\nsg_iovec. bio_copy_user_iov and bio_uncopy_user use it.\n\nSigned-off-by: FUJITA Tomonori \u003cfujita.tomonori@lab.ntt.co.jp\u003e\nCc: Tejun Heo \u003chtejun@gmail.com\u003e\nCc: Mike Christie \u003cmichaelc@cs.wisc.edu\u003e\nCc: James Bottomley \u003cJames.Bottomley@HansenPartnership.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "40044ce0bf2b7e548584d91f108444e83ed5eab3", "tree": "f08d62febe76470e16a639b1c9029309defdd112", "parents": [ "16d54669427069ef2823752c365d695b0cc4748f" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Mon Mar 17 21:14:40 2008 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Mon Mar 17 21:14:40 2008 +0100" }, "message": "Revert \"unexport bio_{,un}map_user\"\n\nOutside users like asmlib uses the mapping functions. API wise, the\nexport is definitely sane. It\u0027s a better idea to keep this export\nthan to require external users to open-code this piece of code instead.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "86b6c7a7f78feca58d2d8615e53aee4d59ab9dc6", "tree": "032a54a3493041fa1c31857d23e9184b89545b78", "parents": [ "4c54ac62dceecedd82d4a865017bba0b738e2897" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Mon Feb 18 13:48:32 2008 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Tue Feb 19 10:04:00 2008 +0100" }, "message": "fs/block_dev.c: remove #if 0\u0027ed code\n\nCommit b2e895dbd80c420bfc0937c3729b4afe073b3848 #if 0\u0027ed this code stating:\n\n\u003c-- snip --\u003e\n\n [PATCH] revert blockdev direct io back to 2.6.19 version\n\n Andrew Vasquez is reporting as-iosched oopses and a 65% throughput\n slowdown due to the recent special-casing of direct-io against\n blockdevs. We don\u0027t know why either of these things are occurring.\n\n The patch minimally reverts us back to the 2.6.19 code for a 2.6.20\n release.\n\n\u003c-- snip --\u003e\n\nIt has since been dead code, and unless someone wants to revive it now\nit\u0027s time to remove it.\n\nThis patch also makes bio_release_pages() static again and removes the\nki_bio_count member from struct kiocb, reverting changes that had been\ndone for this dead code.\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nSigned-off-by: Jens Axboe \u003caxboe@carl.home.kernel.dk\u003e\n" }, { "commit": "5d84070ee0a433620c57e85dac7f82faaec5fbb3", "tree": "9a07548504683bcde2b262b9e2d675cbe7cea2b7", "parents": [ "482eb689169948e9f4966fbae6be4d6bc0bfa818" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri Jan 25 12:44:44 2008 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Mon Jan 28 10:04:46 2008 +0100" }, "message": "__bio_clone: don\u0027t calculate hw/phys segment counts\n\nIf the users sets a new -\u003ebi_bdev on the bio after __bio_clone() has\nreturned it, the \"segment counts valid\" flag still remains even though\nit may be different with the new target. So don\u0027t calculate segment\ncounts in __bio_clone().\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "992c5ddaf1b8b85d2252339c4c89adf7469c09ca", "tree": "67c802af524f923cf20ebcdde2220d72e539121b", "parents": [ "2b94de552e07610dfa79fc49ea49d1cfa5cd9ce8" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Wed Jul 18 13:18:08 2007 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Tue Oct 16 11:03:52 2007 +0200" }, "message": "bio: make freeing of -\u003ebi_io_vec conditional in bio_free()\n\nThe empty barrier patches do not carry data, so they have no\niovec attached.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "2b94de552e07610dfa79fc49ea49d1cfa5cd9ce8", "tree": "4ead48b312a7faf00e0c0373156e1e92cab618f0", "parents": [ "4fa253f33c1d4d6402de9eaacefdb45a47ed116d" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Wed Jul 18 13:14:03 2007 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Tue Oct 16 11:03:51 2007 +0200" }, "message": "bio: use memset() in bio_init()\n\nUse memset() to clear the bio, instead of doing each field manually.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "6712ecf8f648118c3363c142196418f89a510b90", "tree": "347d39a7d5a7ed96d3b1afecd28de2a0f98b98c9", "parents": [ "5bb23a688b2de23d7765a1dd439d89c038378978" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Thu Sep 27 12:47:43 2007 +0200" }, "committer": { "name": "Jens Axboe", "email": "axboe@carl.home.kernel.dk", "time": "Wed Oct 10 09:25:57 2007 +0200" }, "message": "Drop \u0027size\u0027 argument from bio_endio and bi_end_io\n\nAs bi_end_io is only called once when the reqeust is complete,\nthe \u0027size\u0027 argument is now redundant. Remove it.\n\nNow there is no need for bio_endio to subtract the size completed\nfrom bi_size. So don\u0027t do that either.\n\nWhile we are at it, change bi_end_io to return void.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "5bb23a688b2de23d7765a1dd439d89c038378978", "tree": "15e5e07c28b5aacd19d76ccdd4f7b2b75804d347", "parents": [ "9cc54d40b8ca01fcefc9151044b6996565061d90" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Thu Sep 27 12:46:13 2007 +0200" }, "committer": { "name": "Jens Axboe", "email": "axboe@carl.home.kernel.dk", "time": "Wed Oct 10 09:25:57 2007 +0200" }, "message": "Don\u0027t decrement bi_size in bio_endio\n\nThe only caller of bio_endio that does not pass the full bi_size\nis end_that_request_first. Also, no -\u003ebi_end_io method is really\ninterested in bi_size being decremented.\n\nSo move the decrement and related code into ll_rw_blk and merge it\nwith order_bio_endio to form req_bio_endio which does endio functionality\nspecific to request completion.\n\nAs some -\u003ebi_end_io methods do check bi_size of 0, we set it thus for\nnow, but that will go in the next patch.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\n\n### Diffstat output\n ./block/ll_rw_blk.c | 42 +++++++++++++++++++++++++++---------------\n ./fs/bio.c | 23 +++++++++++------------\n 2 files changed, 38 insertions(+), 27 deletions(-)\n\ndiff .prev/block/ll_rw_blk.c ./block/ll_rw_blk.c\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "9cc54d40b8ca01fcefc9151044b6996565061d90", "tree": "a6336d7040dd6e656819257e00d493147c790496", "parents": [ "d24517d793f21edab1a411da95f2c45cb88a84aa" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Thu Sep 27 12:46:12 2007 +0200" }, "committer": { "name": "Jens Axboe", "email": "axboe@carl.home.kernel.dk", "time": "Wed Oct 10 09:25:57 2007 +0200" }, "message": "Only call bi_end_io once for any bio\n\nCurrently bi_end_io can be called multiple times as sub-requests\ncomplete. However no -\u003ebi_end_io function wants to know about that.\nSo only call when the bio is complete.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\n\n### Diffstat output\n ./fs/bio.c | 4 +++-\n 1 file changed, 3 insertions(+), 1 deletion(-)\n\ndiff .prev/fs/bio.c ./fs/bio.c\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "165125e1e480f9510a5ffcfbfee4e3ee38c05f23", "tree": "8009c8a5ff09e26dc2418d42f66ecafb055c52a2", "parents": [ "f695baf2df9e0413d3521661070103711545207a" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Tue Jul 24 09:28:11 2007 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Tue Jul 24 09:28:11 2007 +0200" }, "message": "[BLOCK] Get rid of request_queue_t typedef\n\nSome of the code has been gradually transitioned to using the proper\nstruct request_queue, but there\u0027s lots left. So do a full sweet of\nthe kernel and get rid of this typedef and replace its uses with\nthe proper type.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "20c2df83d25c6a95affe6157a4c9cac4cf5ffaac", "tree": "415c4453d2b17a50abe7a3e515177e1fa337bd67", "parents": [ "64fb98fc40738ae1a98bcea9ca3145b89fb71524" ], "author": { "name": "Paul Mundt", "email": "lethal@linux-sh.org", "time": "Fri Jul 20 10:11:58 2007 +0900" }, "committer": { "name": "Paul Mundt", "email": "lethal@linux-sh.org", "time": "Fri Jul 20 10:11:58 2007 +0900" }, "message": "mm: Remove slab destructors from kmem_cache_create().\n\nSlab destructors were no longer supported after Christoph\u0027s\nc59def9f222d44bb7e2f0a559f2906191a0862d7 change. They\u0027ve been\nBUGs for both slab and slub, and slob never supported them\neither.\n\nThis rips out support for the dtor pointer from kmem_cache_create()\ncompletely and fixes up every single callsite in the kernel (there were\nabout 224, not including the slab allocator definitions themselves,\nor the documentation references).\n\nSigned-off-by: Paul Mundt \u003clethal@linux-sh.org\u003e\n" }, { "commit": "72d3a38ee083a96c09032e608a4c7e047ce26760", "tree": "73e1ed4485cf0e09c357cdda82596abf3e25824a", "parents": [ "f3f541f9ded9dd37edca103dd3be49bfbd9e730d" ], "author": { "name": "Adrian Bunk", "email": "bunk@stusta.de", "time": "Mon Jul 09 09:40:44 2007 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Tue Jul 10 08:03:34 2007 +0200" }, "message": "unexport bio_{,un}map_user\n\nbio_{,un}map_user no longer have any modular users.\n\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "0a31bd5f2bbb6473ef9d24f0063ca91cfa678b64", "tree": "a945e829bf6bf7a93bf844b2ee9f2a3a2fa17c5d", "parents": [ "5af60839909b8e3b28ca7cd7912fa0b23475617f" ], "author": { "name": "Christoph Lameter", "email": "clameter@sgi.com", "time": "Sun May 06 14:49:57 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon May 07 12:12:55 2007 -0700" }, "message": "KMEM_CACHE(): simplify slab cache creation\n\nThis patch provides a new macro\n\nKMEM_CACHE(\u003cstruct\u003e, \u003cflags\u003e)\n\nto simplify slab creation. KMEM_CACHE creates a slab with the name of the\nstruct, with the size of the struct and with the alignment of the struct.\nAdditional slab flags may be specified if necessary.\n\nExample\n\nstruct test_slab {\n\tint a,b,c;\n\tstruct list_head;\n} __cacheline_aligned_in_smp;\n\ntest_slab_cache \u003d KMEM_CACHE(test_slab, SLAB_PANIC)\n\nwill create a new slab named \"test_slab\" of the size sizeof(struct\ntest_slab) and aligned to the alignment of test slab. If it fails then we\npanic.\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "5972511b77809cb7c9ccdb79b825c54921c5c546", "tree": "8dec5821badf9750be04f339f0f621fab2114c8a", "parents": [ "b9099ff63c75216d6ca10bce5a1abcd9293c27e6" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Mon Apr 02 10:06:42 2007 +0200" }, "committer": { "name": "Jens Axboe", "email": "axboe@nelson.home.kernel.dk", "time": "Mon Apr 30 09:08:17 2007 +0200" }, "message": "[BLOCK] Don\u0027t pin lots of memory in mempools\n\nCurrently we scale the mempool sizes depending on memory installed\nin the machine, except for the bio pool itself which sits at a fixed\n256 entry pre-allocation.\n\nThere\u0027s really no point in \"optimizing\" this OOM path, we just need\nenough preallocated to make progress. A single unit is enough, lets\nscale it down to 2 just to be on the safe side.\n\nThis patch saves ~150kb of pinned kernel memory on a 32-bit box.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "e61c90188b9956edae1105eef361d8981a352fcd", "tree": "7de9cc41910c55e32aba0f8cc07f73923b7cb515", "parents": [ "7e913c53609d5e8374f55d6f29c0bcd6650a2362" ], "author": { "name": "Chen, Kenneth W", "email": "kenneth.w.chen@intel.com", "time": "Wed Dec 13 00:34:36 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Wed Dec 13 09:05:50 2006 -0800" }, "message": "[PATCH] optimize o_direct on block devices\n\nImplement block device specific .direct_IO method instead of going through\ngeneric direct_io_worker for block device.\n\ndirect_io_worker() is fairly complex because it needs to handle O_DIRECT on\nfile system, where it needs to perform block allocation, hole detection,\nextents file on write, and tons of other corner cases. The end result is\nthat it takes tons of CPU time to submit an I/O.\n\nFor block device, the block allocation is much simpler and a tight triple\nloop can be written to iterate each iovec and each page within the iovec in\norder to construct/prepare bio structure and then subsequently submit it to\nthe block layer. This significantly speeds up O_D on block device.\n\n[akpm@osdl.org: small speedup]\nSigned-off-by: Ken Chen \u003ckenneth.w.chen@intel.com\u003e\nCc: Christoph Hellwig \u003chch@lst.de\u003e\nCc: Zach Brown \u003czach.brown@oracle.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "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": "4c1ac1b49122b805adfa4efc620592f68dccf5db", "tree": "87557f4bc2fd4fe65b7570489c2f610c45c0adcd", "parents": [ "c4028958b6ecad064b1a6303a6a5906d4fe48d73", "d916faace3efc0bf19fe9a615a1ab8fa1a24cd93" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Tue Dec 05 14:37:56 2006 +0000" }, "committer": { "name": "David Howells", "email": "dhowells@warthog.cambridge.redhat.com", "time": "Tue Dec 05 14:37:56 2006 +0000" }, "message": "Merge branch \u0027master\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6\n\nConflicts:\n\n\tdrivers/infiniband/core/iwcm.c\n\tdrivers/net/chelsio/cxgb2.c\n\tdrivers/net/wireless/bcm43xx/bcm43xx_main.c\n\tdrivers/net/wireless/prism54/islpci_eth.c\n\tdrivers/usb/core/hub.h\n\tdrivers/usb/input/hid-core.c\n\tnet/core/netpoll.c\n\nFix up merge failures with Linus\u0027s head and fix new compilation failures.\n\nSigned-Off-By: David Howells \u003cdhowells@redhat.com\u003e\n" }, { "commit": "0e75f9063f5c55fb0b0b546a7c356f8ec186825e", "tree": "db138f641175403546c2147def4b405f3ff453a8", "parents": [ "ad2d7225709b11da47e092634cbdf0591829ae9c" ], "author": { "name": "Mike Christie", "email": "michaelc@cs.wisc.edu", "time": "Fri Dec 01 10:40:55 2006 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri Dec 01 10:40:55 2006 +0100" }, "message": "[PATCH] block: support larger block pc requests\n\nThis patch modifies blk_rq_map/unmap_user() and the cdrom and scsi_ioctl.c\nusers so that it supports requests larger than bio by chaining them together.\n\nSigned-off-by: Mike Christie \u003cmichaelc@cs.wisc.edu\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "ad2d7225709b11da47e092634cbdf0591829ae9c", "tree": "5427bbb60456d8219dcc78b2d72820a99a604b90", "parents": [ "be1c63411addba3ad750eb4fdfc50b97bc82825e" ], "author": { "name": "Mike Christie", "email": "michaelc@cs.wisc.edu", "time": "Fri Dec 01 10:40:20 2006 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri Dec 01 10:40:20 2006 +0100" }, "message": "[PATCH] block: kill length alignment test in bio_map_user()\n\nThe target mode support is mapping in bios using bio_map_user. The\ncurrent targets do not need their len to be aligned with a queue limit\nso this check is causing some problems. Note: pointers passed into the\nkernel are properly aligned by usersapace tgt code so the uaddr check\nin bio_map_user is ok.\n\nThe major user, blk_bio_map_user checks for the len before mapping\nso it is not affected by this patch.\n\nAnd the semi-newly added user blk_rq_map_user_iov has been failing\nout when the len is not aligned properly so maybe people have been\ngood and not sending misaligned lens or that path is not used very\noften and this change will not be very dangerous. st and sg do not\ncheck the length and we have not seen any problem reports from those\nwider used paths so this patch should be fairly safe - for mm\nand wider testing at least.\n\nSigned-off-by: Mike Christie \u003cmichaelc@cs.wisc.edu\u003e\nSigned-off-by: FUJITA Tomonori \u003cfujita.tomonori@lab.ntt.co.jp\u003e\nSigned-off-by: James Bottomley \u003cJames.Bottomley@SteelEye.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "65f27f38446e1976cc98fd3004b110fedcddd189", "tree": "68f8be93feae31dfa018c22db392a05546b63ee1", "parents": [ "365970a1ea76d81cb1ad2f652acb605f06dae256" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Wed Nov 22 14:55:48 2006 +0000" }, "committer": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Wed Nov 22 14:55:48 2006 +0000" }, "message": "WorkStruct: Pass the work_struct pointer instead of context data\n\nPass the work_struct pointer to the work function rather than context data.\nThe work function can use container_of() to work out the data.\n\nFor the cases where the container of the work_struct may go away the moment the\npending bit is cleared, it is made possible to defer the release of the\nstructure by deferring the clearing of the pending bit.\n\nTo make this work, an extra flag is introduced into the management side of the\nwork_struct. This governs auto-release of the structure upon execution.\n\nOrdinarily, the work queue executor would release the work_struct for further\nscheduling or deallocation by clearing the pending bit prior to jumping to the\nwork function. This means that, unless the driver makes some guarantee itself\nthat the work_struct won\u0027t go away, the work function may not access anything\nelse in the work_struct or its container lest they be deallocated.. This is a\nproblem if the auxiliary data is taken away (as done by the last patch).\n\nHowever, if the pending bit is *not* cleared before jumping to the work\nfunction, then the work function *may* access the work_struct and its container\nwith no problems. But then the work function must itself release the\nwork_struct by calling work_release().\n\nIn most cases, automatic release is fine, so this is the default. Special\ninitiators exist for the non-auto-release case (ending in _NAR).\n\n\nSigned-Off-By: David Howells \u003cdhowells@redhat.com\u003e\n" }, { "commit": "bf02c082bf7a464518d45b9c178b8aa83f74dd5d", "tree": "8c0aafa48ec5e2298d76d58baf67bd59a5fa95ae", "parents": [ "49a6cbe1cd8a72451d9d6ab5b1e163f17c1bbee3" ], "author": { "name": "Andreas Mohr", "email": "andi@rhlx01.fht-esslingen.de", "time": "Wed Oct 11 01:22:24 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Oct 11 11:14:25 2006 -0700" }, "message": "[PATCH] fs/bio.c: tweaks\n\n- Calculate a variable in bvec_alloc_bs() only once needed, not earlier\n (bio.o down from 18408 to 18376 Bytes, 32 Bytes saved, probably due to\n data locality improvements).\n\n- Init variable idx to silence a gcc warning which already existed in the\n unmodified original base file (bvec_alloc_bs() handles idx correctly, so\n there\u0027s no need for the warning):\n\n\tfs/bio.c: In function `bio_alloc_bioset\u0027:\n\tfs/bio.c:169: warning: `idx\u0027 may be used uninitialized in this function\n\nSigned-off-by: Andreas Mohr \u003candi@lisas.de\u003e\nAcked-by: Jens Axboe \u003caxboe@kernel.dk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "0fe23479577124bd2687e6783e39fa0fa4c28005", "tree": "954ae8c079fd10cd52bf212ca5cd2530ec5c2315", "parents": [ "50be345560f1ffdcb15cc0e146416b80529a2ef2" ], "author": { "name": "Jens Axboe", "email": "axboe@kernel.dk", "time": "Mon Sep 04 15:41:16 2006 +0200" }, "committer": { "name": "Jens Axboe", "email": "axboe@nelson.home.kernel.dk", "time": "Sat Sep 30 20:52:34 2006 +0200" }, "message": "[PATCH] Update axboe@suse.de email address\n\nAs people often look for the copyright in files to see who to mail,\nupdate the link to a neutral one.\n\nSigned-off-by: Jens Axboe \u003caxboe@kernel.dk\u003e\n" }, { "commit": "50be345560f1ffdcb15cc0e146416b80529a2ef2", "tree": "056278d82ea7fcbd26d9cc95c806d3978bbbb56e", "parents": [ "bcfd8d36151e531e1c6c731f1fbf792509a1c494" ], "author": { "name": "Milan Broz", "email": "mbroz@redhat.com", "time": "Mon Sep 04 15:37:57 2006 +0200" }, "committer": { "name": "Jens Axboe", "email": "axboe@nelson.home.kernel.dk", "time": "Sat Sep 30 20:52:33 2006 +0200" }, "message": "[PATCH] fix creating zero sized bio mempools in low memory system\n\nIn the very low memory systems is in the init_bio call\nscale parameter set to zero and it leads to creating\nzero sized mempool.\n\nThis patch prevents pool_entries parameter become zero,\nso the created pool have at least 1 entry.\n\nMempool with 0 entries lead to incorrect behaviour\nof mempool_free. (Alloc requests are not waken up\nand system stalls in mempool_alloc-\u003eioschedule).\n\nSigned-off-by: Milan Broz \u003cmbroz@redhat.com\u003e\nSigned-off-by: Jens Axboe \u003caxboe@kernel.dk\u003e\n" }, { "commit": "991721572ef2140c6411894aebefd3377e71a9e7", "tree": "8264f83a60517616b860c0bce7d0e0413eb5c2cb", "parents": [ "16070428d389ff47aa3476b0911179ad90c640a2" ], "author": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Fri Jun 16 13:02:29 2006 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Jun 17 10:52:12 2006 -0700" }, "message": "[PATCH] Fix missing ret assignment in __bio_map_user() error path\n\nIf get_user_pages() returns less pages than what we asked for, we jump\nto out_unmap which will return ERR_PTR(ret). But ret can contain a\npositive number just smaller than local_nr_pages, so be sure to set it\nto -EFAULT always.\n\nProblem found and diagnosed by Damien Le Moal \u003cdamien@sdl.hitachi.co.jp\u003e\n\nSigned-off-by: Jens Axboe \u003caxboe@suse.de\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a2eb0c101d24aca9d3d16c30c4f79f3a70c89208", "tree": "c74aaec429deb174440e76d9b73985abb9604c50", "parents": [ "5c4c33318d26620fa552f15bbb6d0f9775a1b4df" ], "author": { "name": "NeilBrown", "email": "neilb@suse.de", "time": "Mon May 22 22:35:27 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue May 23 10:35:31 2006 -0700" }, "message": "[PATCH] md: Make sure bi_max_vecs is set properly in bio_split\n\nElse a subsequent bio_clone might make a mess.\n\nSigned-off-by: Neil Brown \u003cneilb@suse.de\u003e\nCc: \"Don Dupuis\" \u003cdondster@gmail.com\u003e\nAcked-by: Jens Axboe \u003caxboe@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "93d2341c750cda0df48a6cc67b35fe25f1ec47df", "tree": "f098a3bbfae65ce967591ee94d605c6e6bea21c6", "parents": [ "fec433aaaae32a02329ad7d71b0f3c91b7525077" ], "author": { "name": "Matthew Dobson", "email": "colpatch@us.ibm.com", "time": "Sun Mar 26 01:37:50 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Mar 26 08:57:00 2006 -0800" }, "message": "[PATCH] mempool: use mempool_create_slab_pool()\n\nModify well over a dozen mempool users to call mempool_create_slab_pool()\nrather than calling mempool_create() with extra arguments, saving about 30\nlines of code and increasing readability.\n\nSigned-off-by: Matthew Dobson \u003ccolpatch@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "0eaae62abaa1ad1f231932b6cdd9fb1b91df6651", "tree": "cda02cffff075a8b542ddcea4fa0ff0064130502", "parents": [ "53184082b070dfb077218828fdf839826102ed96" ], "author": { "name": "Matthew Dobson", "email": "colpatch@us.ibm.com", "time": "Sun Mar 26 01:37:47 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Mar 26 08:56:59 2006 -0800" }, "message": "[PATCH] mempool: use common mempool kmalloc allocator\n\nThis patch changes several mempool users, all of which are basically just\nwrappers around kmalloc(), to use the common mempool_kmalloc/kfree, rather\nthan their own wrapper function, removing a bunch of duplicated code.\n\nSigned-off-by: Matthew Dobson \u003ccolpatch@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "fa3536cc144c1298f2ed9416c33f3b77fa2cd37a", "tree": "5484541319b86ae7dac0def4db7925f7cc7008e7", "parents": [ "878a9f30d7b13015f3aa4534d7877d985f150183" ], "author": { "name": "Eric Dumazet", "email": "dada1@cosmosbay.com", "time": "Sun Mar 26 01:37:24 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Mar 26 08:56:56 2006 -0800" }, "message": "[PATCH] Use __read_mostly on some hot fs variables\n\nI discovered on oprofile hunting on a SMP platform that dentry lookups were\nslowed down because d_hash_mask, d_hash_shift and dentry_hashtable were in\na cache line that contained inodes_stat. So each time inodes_stats is\nchanged by a cpu, other cpus have to refill their cache line.\n\nThis patch moves some variables to the __read_mostly section, in order to\navoid false sharing. RCU dentry lookups can go full speed.\n\nSigned-off-by: Eric Dumazet \u003cdada1@cosmosbay.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "11b0b5abb2097a63c1081d9b7e825b987b227972", "tree": "162c828c8d807a1b30869acbe11682dc9222dc16", "parents": [ "656bde5728b824ca23fcab8bc5800b309ea48d64" ], "author": { "name": "Oliver Neukum", "email": "neukum@fachschaft.cup.uni-muenchen.de", "time": "Sat Mar 25 03:08:13 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Mar 25 08:23:00 2006 -0800" }, "message": "[PATCH] use kzalloc and kcalloc in core fs code\n\nSigned-off-by: Oliver Neukum \u003coliver@neukum.name\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "2056a782f8e7e65fd4bfd027506b4ce1c5e9ccd4", "tree": "d4fe59a7ca0c110690937085548936a4535c39db", "parents": [ "6dac40a7ce2483a47b54af07afebeb84131c7228" ], "author": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Thu Mar 23 20:00:26 2006 +0100" }, "committer": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Thu Mar 23 20:00:26 2006 +0100" }, "message": "[PATCH] Block queue IO tracing support (blktrace) as of 2006-03-23\n\nSigned-off-by: Jens Axboe \u003caxboe@suse.de\u003e\n" }, { "commit": "b0e6e962992b76580f4900b166a337bad7c1e81b", "tree": "0caae9380c729a437e89acd5d5817a285156e26e", "parents": [ "b73b459f72f746a031d1ef4cc7659b20a1f1acb9" ], "author": { "name": "Benjamin LaHaise", "email": "bcrl@kvack.org", "time": "Thu Mar 23 03:01:08 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Mar 23 07:38:18 2006 -0800" }, "message": "[PATCH] reduce size of bio mempools\n\nThe biovec default mempool limit of 256 entries results in over 3MB of RAM\nbeing permanently pinned, even on systems with only 128MB of RAM. Since\nmempool tries to allocate from the system pool first, it makes sense to\nreduce the size of the mempool fallbacks to a more reasonable limit of 1-5\nentries -- enough for the system to be able to make progress even under\nload.\n\nSigned-off-by: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nAcked-by: Jens Axboe \u003caxboe@suse.de\u003e\nCc: Matt Mackall \u003cmpm@selenic.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "fddfdeafa8396f85c666bfc5e1e920eb535514cf", "tree": "72994a14d741bdb2ca60eeebb6531f95840cffbc", "parents": [ "48bdc8ec4aa2ca04e339bf5c3a47677d8dd00bb6" ], "author": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Tue Jan 31 15:24:34 2006 +0100" }, "committer": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Tue Jan 31 15:24:34 2006 +0100" }, "message": "[BLOCK] A few kerneldoc fixups\n\nSigned-off-by: Jens Axboe \u003caxboe@suse.de\u003e\n" }, { "commit": "858119e159384308a5dde67776691a2ebf70df0f", "tree": "f360768f999d51edc0863917ce0bf79e88c0ec4c", "parents": [ "b0a9499c3dd50d333e2aedb7e894873c58da3785" ], "author": { "name": "Arjan van de Ven", "email": "arjan@infradead.org", "time": "Sat Jan 14 13:20:43 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Jan 14 18:27:06 2006 -0800" }, "message": "[PATCH] Unlinline a bunch of other functions\n\nRemove the \"inline\" keyword from a bunch of big functions in the kernel with\nthe goal of shrinking it by 30kb to 40kb\n\nSigned-off-by: Arjan van de Ven \u003carjan@infradead.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Jeff Garzik \u003cjgarzik@pobox.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "0ea60b5ad8c3630e8f44c443f173d841be7fc701", "tree": "9a8d23c797439a03dcccf26678994783d12f1bbb", "parents": [ "769db45b73896a88d6b40e3e648dfc50a155ec93" ], "author": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Mon Jan 09 14:45:10 2006 +0100" }, "committer": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Mon Jan 09 14:45:10 2006 +0100" }, "message": "[BLOCK] bio: init -\u003ebi_bdev in bio_init()\n\nFor SG_IO requests, bio-\u003ebi_bdev may not be explicitly initialized. So make\nbio_init() clear the field to make sure it\u0027s always NULL or valid.\n\nSigned-off-by: Jens Axboe \u003caxboe@suse.de\u003e\n" }, { "commit": "80cfd548eed68cf90c5ae9cfcd6b02230cece756", "tree": "a178608e394b5ee079838353004eb318ff22c513", "parents": [ "88ee5ef157202624de2b43b3512fdcb54fda1ab5" ], "author": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Fri Jan 06 09:43:28 2006 +0100" }, "committer": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Fri Jan 06 09:43:28 2006 +0100" }, "message": "[BLOCK] bio: check for same page merge possibilities in __bio_add_page()\n\nFor filesystems with a blocksize \u003c page size, we can merge same page\ncalls into the bio_vec at the end of the bio. This saves segments\non systems with a page size \u003e the \"normal\" 4kb fs block size.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Jens Axboe \u003caxboe@suse.de\u003e\n" }, { "commit": "defd94b75409b983f94548ea2f52ff5787ddb848", "tree": "0138b2dae748de88edaee4da23431f1a9dd347a1", "parents": [ "8b05b773b6030de5b1bab1cbb0bf1ff8c34cdbe0" ], "author": { "name": "Mike Christie", "email": "michaelc@cs.wisc.edu", "time": "Mon Dec 05 02:37:06 2005 -0600" }, "committer": { "name": "James Bottomley", "email": "jejb@mulgrave.(none)", "time": "Thu Dec 15 15:11:40 2005 -0800" }, "message": "[SCSI] seperate max_sectors from max_hw_sectors\n\n- export __blk_put_request and blk_execute_rq_nowait\nneeded for async REQ_BLOCK_PC requests\n- seperate max_hw_sectors and max_sectors for block/scsi_ioctl.c and\nSG_IO bio.c helpers per Jens\u0027s last comments. Since block/scsi_ioctl.c SG_IO was\nalready testing against max_sectors and SCSI-ml was setting max_sectors and\nmax_hw_sectors to the same value this does not change any scsi SG_IO behavior. It only\nprepares ll_rw_blk.c, scsi_ioctl.c and bio.c for when SCSI-ml begins to set\na valid max_hw_sectors for all LLDs. Today if a LLD does not set it\nSCSI-ml sets it to a safe default and some LLDs set it to a artificial low\nvalue to overcome memory and feedback issues.\n\nNote: Since we now cap max_sectors to BLK_DEF_MAX_SECTORS, which is 1024,\ndrivers that used to call blk_queue_max_sectors with a large value of\nmax_sectors will now see the fs requests capped to BLK_DEF_MAX_SECTORS.\n\nSigned-off-by: Mike Christie \u003cmichaelc@cs.wisc.edu\u003e\nSigned-off-by: James Bottomley \u003cJames.Bottomley@SteelEye.com\u003e\n" }, { "commit": "6e68af666f5336254b5715dca591026b7324499a", "tree": "5640209b6e2b75659149460f14531cfecffe2f5d", "parents": [ "6e39b69e7ea9205c5f80aeac3ef999ab8fb1a4cc" ], "author": { "name": "Mike Christie", "email": "michaelc@cs.wisc.edu", "time": "Fri Nov 11 05:30:27 2005 -0600" }, "committer": { "name": "James Bottomley", "email": "jejb@mulgrave.(none)", "time": "Wed Dec 14 19:03:35 2005 -0800" }, "message": "[SCSI] Convert SCSI mid-layer to scsi_execute_async\n\nAdd scsi helpers to create really-large-requests and convert\nscsi-ml to scsi_execute_async().\n\nPer Jens\u0027s previous comments, I placed this function in scsi_lib.c.\nI made it follow all the queue\u0027s limits - I think I did at least :), so\nI removed the warning on the function header.\n\nI think the scsi_execute_* functions should eventually take a request_queue\nand be placed some place where the dm-multipath hw_handler can use them\nif that failover code is going to stay in the kernel. That conversion\npatch will be sent in another mail though.\n\nSigned-off-by: Mike Christie \u003cmichaelc@cs.wisc.edu\u003e\nSigned-off-by: James Bottomley \u003cJames.Bottomley@SteelEye.com\u003e\n" }, { "commit": "27496a8c67bef4d789d8e3c8317ca35813a507ae", "tree": "fe99a34fe5a800e41af61853e7444ddddf45d014", "parents": [ "7d877f3bda870ab5f001bd92528654471d5966b3" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Oct 21 03:20:48 2005 -0400" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Oct 28 08:16:47 2005 -0700" }, "message": "[PATCH] gfp_t: fs/*\n\n - -\u003ereleasepage() annotated (s/int/gfp_t), instances updated\n - missing gfp_t in fs/* added\n - fixed misannotation from the original sweep caught by bitwise checks:\n XFS used __nocast both for gfp_t and for flags used by XFS allocator.\n The latter left with unsigned int __nocast; we might want to add a\n different type for those but for now let\u0027s leave them alone. That,\n BTW, is a case when __nocast use had been actively confusing - it had\n been used in the same code for two different and similar types, with\n no way to catch misuses. Switch of gfp_t to bitwise had caught that\n immediately...\n\nOne tricky bit is left alone to be dealt with later - mapping-\u003eflags is\na mix of gfp_t and error indications. Left alone for now.\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "dd0fc66fb33cd610bc1a5db8a5e232d34879b4d7", "tree": "51f96a9db96293b352e358f66032e1f4ff79fafb", "parents": [ "3b0e77bd144203a507eb191f7117d2c5004ea1de" ], "author": { "name": "Al Viro", "email": "viro@ftp.linux.org.uk", "time": "Fri Oct 07 07:46:04 2005 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Oct 08 15:00:57 2005 -0700" }, "message": "[PATCH] gfp flags annotations - part 1\n\n - added typedef unsigned int __nocast gfp_t;\n\n - replaced __nocast uses for gfp flags with gfp_t - it gives exactly\n the same warnings as far as sparse is concerned, doesn\u0027t change\n generated code (from gcc point of view we replaced unsigned int with\n typedef) and documents what\u0027s going on far better.\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "3f70353ea91ad77c83500e70507a239b2ab0c980", "tree": "ef51eaaa3e089c314ee3bea21ecd94d3800758ad", "parents": [ "6c9afc655d4df902211d00a437e893881cdef588" ], "author": { "name": "viro@ZenIV.linux.org.uk", "email": "viro@ZenIV.linux.org.uk", "time": "Fri Sep 09 16:53:56 2005 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Sep 09 10:31:58 2005 -0700" }, "message": "[PATCH] bogus cast in bio.c\n\n\u003cqualifier\u003e void * is not the same as void \u003cqualifier\u003e *...\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "0481990b758628e12f4b0a9e15094e70cefc7cd1", "tree": "67a4b4b7acc6a688b87ef2a2d3ec0e296e6e480c", "parents": [ "db400b3c4ee89d384d9163836a55577abdae772d", "17fa53da1239b8712c5cebbd72a74c713b6c2db9" ], "author": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Sep 07 17:31:27 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Sep 07 17:31:27 2005 -0700" }, "message": "Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-for-linus-2.6 \n" }, { "commit": "3676347a5e216a7fec7f8eedbbcf8bed6b9c4e40", "tree": "3b5880b862390590da8edfb98c3e62aa573d0b28", "parents": [ "6f00df24ee394f345a8789d3a2f98fc1d9195b9f" ], "author": { "name": "Peter Osterlund", "email": "petero2@telia.com", "time": "Tue Sep 06 15:16:42 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Sep 07 16:57:20 2005 -0700" }, "message": "[PATCH] kill bio-\u003ebi_set\n\nJens:\n\n-\u003ebi_set is totally unnecessary bloat of struct bio. Just define a proper\ndestructor for the bio and it already knows what bio_set it belongs too.\n\nPeter:\n\nFixed the bugs.\n\nSigned-off-by: Jens Axboe \u003caxboe@suse.de\u003e\nSigned-off-by: Peter Osterlund \u003cpetero2@telia.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "31151ba2cef171344beac254e65bd7e00138bb0d", "tree": "a8f9cd3c0395656d974125c0ca7ed635aacddeee", "parents": [ "3d52acb34247816c453f94596e6c7fc4499b76dc", "73747aed04d3b3fb694961d025f81863b99c6898" ], "author": { "name": "James Bottomley", "email": "jejb@titanic.(none)", "time": "Sun Aug 28 10:43:07 2005 -0500" }, "committer": { "name": "James Bottomley", "email": "jejb@titanic.(none)", "time": "Sun Aug 28 10:43:07 2005 -0500" }, "message": "fix mismerge in ll_rw_blk.c\n" }, { "commit": "e525e153c7a99fc64af68e7f50a2660babd6752b", "tree": "8a19f97f37b3175b36824ae1b34b2e27e18392b9", "parents": [ "d5172f263f76ca6d588f533c0989b22521fcbac2" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Sun Aug 07 09:42:12 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Aug 07 10:00:38 2005 -0700" }, "message": "[PATCH] __bio_clone() dead comment\n\nRemove a very wrong comment.\n\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a5453be48e8def75a9c1b2177b82fa0e692c6e3a", "tree": "c1d224f0fb4db22e87567e1eea45001a7b11e51f", "parents": [ "577a4f8102d54b504cb22eb021b89e957e8df18f" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Thu Jul 28 01:07:18 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Jul 28 08:38:59 2005 -0700" }, "message": "[PATCH] bio_clone fix\n\nFix bug introduced in 2.6.11-rc2: when we clone a BIO we need to copy over the\ncurrent index into it as well.\n\nIt corrupts data with some MD setups.\n\nSee http://bugzilla.kernel.org/show_bug.cgi?id\u003d4946\n\nHuuuuuuuuge thanks to Matthew Stapleton \u003cmatthew4196@gmail.com\u003e for doggedly\nchasing this one down.\n\nAcked-by: Jens Axboe \u003caxboe@suse.de\u003e\nCc: \u003clinux-raid@vger.kernel.org\u003e\nCc: \u003cdm-devel@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6c036527a630720063b67d9a65455e8caca2c8fa", "tree": "316e947f5f4efcda0205e48044ed1d12665eaed1", "parents": [ "0db925af1db5f3dfe1691c35b39496e2baaff9c9" ], "author": { "name": "Christoph Lameter", "email": "christoph@lameter.com", "time": "Thu Jul 07 17:56:59 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Jul 07 18:23:46 2005 -0700" }, "message": "[PATCH] mostly_read data section\n\nAdd a new section called \".data.read_mostly\" for data items that are read\nfrequently and rarely written to like cpumaps etc.\n\nIf these maps are placed in the .data section then these frequenly read\nitems may end up in cachelines with data is is frequently updated. In that\ncase all processors in an SMP system must needlessly reload the cachelines\nagain and again containing elements of those frequently used variables.\n\nThe ability to share these cachelines will allow each cpu in an SMP system\nto keep local copies of those shared cachelines thereby optimizing\nperformance.\n\nSigned-off-by: Alok N Kataria \u003calokk@calsoftinc.com\u003e\nSigned-off-by: Shobhit Dayal \u003cshobhit@calsoftinc.com\u003e\nSigned-off-by: Christoph Lameter \u003cchristoph@scalex86.org\u003e\nSigned-off-by: Shai Fultheim \u003cshai@scalex86.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "f1970baf6d74e03bd32072ab453f2fc01bc1b8d3", "tree": "559898cdf83bd0f93b8a72248c6423a6548fb604", "parents": [ "dd1cab95f356f1395278633565f198463cf6bd24" ], "author": { "name": "James Bottomley ", "email": "James.Bottomley@SteelEye.com", "time": "Mon Jun 20 14:06:52 2005 +0200" }, "committer": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Mon Jun 20 14:06:52 2005 +0200" }, "message": "[PATCH] Add scatter-gather support for the block layer SG_IO\n\nSigned-off-by: Jens Axboe \u003caxboe@suse.de\u003e\n" }, { "commit": "b823825e8e09aac6dc1ca362cd5639a87329d636", "tree": "f825aa09e088c160d50f2b9e878a287ebf2cb304", "parents": [ "df46b9a44ceb5af2ea2351ce8e28ae7bd840b00f" ], "author": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Mon Jun 20 14:05:27 2005 +0200" }, "committer": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Mon Jun 20 14:05:27 2005 +0200" }, "message": "[PATCH] Keep the bio end_io parts inside of bio.c for blk_rq_map_kern()\n\nSigned-off-by: Jens Axboe \u003caxboe@suse.de\u003e\n" }, { "commit": "df46b9a44ceb5af2ea2351ce8e28ae7bd840b00f", "tree": "30ab71759486f94d60af2283fc55bfffcc22155a", "parents": [ "8b22c249e7de453961e4d253b19fc2a0bdd65d53" ], "author": { "name": "Mike Christie ", "email": "michaelc@cs.wisc.edu", "time": "Mon Jun 20 14:04:44 2005 +0200" }, "committer": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Mon Jun 20 14:04:44 2005 +0200" }, "message": "[PATCH] Add blk_rq_map_kern()\n\nAdd blk_rq_map_kern which takes a kernel buffer and maps it into\na request and bio. This can be used by the dm hw_handlers, old\nsg_scsi_ioctl, and one day scsi special requests so all requests\ncomming into scsi will have bios. All requests having bios\nshould allow scsi to use scatter lists for all IO and allow it\nto use block layer functions.\n\nSigned-off-by: Jens Axboe \u003caxboe@suse.de\u003e\n" }, { "commit": "67be2dd1bace0ec7ce2dbc1bba3f8df3d7be597e", "tree": "317d114a0288d3b19ef9902f94b536a5a8731dbd", "parents": [ "6013d5445f9a6d0b28090027868f455c5012d1cc" ], "author": { "name": "Martin Waitz", "email": "tali@admingilde.org", "time": "Sun May 01 08:59:26 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sun May 01 08:59:26 2005 -0700" }, "message": "[PATCH] DocBook: fix some descriptions\n\nSome KernelDoc descriptions are updated to match the current code.\nNo code changes.\n\nSigned-off-by: Martin Waitz \u003ctali@admingilde.org\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" } ] }