)]}' { "log": [ { "commit": "d2b20b11547cefc89d6c81937e81afaf3c62808b", "tree": "50a6c8e1d86c38fff417907d821eec0e0731e1a5", "parents": [ "73e753a50dcac7d6d4fa8b9552203ef544a70d77" ], "author": { "name": "Gautham R Shenoy", "email": "ego@in.ibm.com", "time": "Thu Oct 18 23:40:47 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Oct 19 11:53:44 2007 -0700" }, "message": "Add irq protection in the percpu-counters cpu-hotplug-callback path\n\nSome of the per-cpu counters and thus their locks are accessed from IRQ\ncontexts. This can cause a deadlock if it interrupts a cpu-offline thread\nwhich is transferring a dead-cpu\u0027s counts to the global counter.\n\nAdd appropriate IRQ protection in the cpu-hotplug callback path.\n\nSigned-off-by: Gautham R Shenoy \u003cego@in.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "dc62a30e274d003a4d08fb888f1520add4b21373", "tree": "15835cabc7b9fbc6b213be6f7c0fa5003e44fdb3", "parents": [ "833f4077bf7c2dcff6e31526e03ec2ad91c88581" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Oct 16 23:25:46 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:44 2007 -0700" }, "message": "lib: percpu_counter_init_irq\n\nprovide a way to tell lockdep about percpu_counters that are supposed to be\nused from irq safe contexts.\n\nSigned-off-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": "833f4077bf7c2dcff6e31526e03ec2ad91c88581", "tree": "80916540be846267342c3e5e4a6255c2c18b44d5", "parents": [ "bf1d89c81352f6eca72d0c10cfee3dba29ef5efb" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Oct 16 23:25:45 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:44 2007 -0700" }, "message": "lib: percpu_counter_init error handling\n\nalloc_percpu can fail, propagate that error.\n\nSigned-off-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": "bf1d89c81352f6eca72d0c10cfee3dba29ef5efb", "tree": "4154acea12a0273ffbc3eafe39530b2e25aa4ed5", "parents": [ "52d9f3b4090922f34497ace82bd062d80a465a29" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Oct 16 23:25:45 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:44 2007 -0700" }, "message": "lib: percpu_count_sum()\n\nProvide an accurate version of percpu_counter_read.\n\nSigned-off-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": "52d9f3b4090922f34497ace82bd062d80a465a29", "tree": "77ee238498a5b205fa80e58b41212a9e3334c8bf", "parents": [ "3a587f47b82f96f19318c036e7b979fcd5c3848f" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Oct 16 23:25:44 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:44 2007 -0700" }, "message": "lib: percpu_counter_sum_positive\n\n s/percpu_counter_sum/\u0026_positive/\n\nBecause its consitent with percpu_counter_read*\n\nSigned-off-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": "3a587f47b82f96f19318c036e7b979fcd5c3848f", "tree": "84b3254a7ea7524784f7e262d651cc332b3b0063", "parents": [ "20e89767096392a2cb2404437d3d181b8827af38" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Oct 16 23:25:44 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:44 2007 -0700" }, "message": "lib: percpu_counter_set\n\nProvide a method to set a percpu counter to a specified value.\n\nSigned-off-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": "20e89767096392a2cb2404437d3d181b8827af38", "tree": "a20dd2e0c987d12e9161d5784a58c55f4aa0862f", "parents": [ "252e0ba6b77dcfae448fa2fbaf796e8a83839e75" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Oct 16 23:25:43 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:44 2007 -0700" }, "message": "lib: make percpu_counter_add take s64\n\npercpu_counter is a s64 counter, make _add consitent.\n\nSigned-off-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": "252e0ba6b77dcfae448fa2fbaf796e8a83839e75", "tree": "f21bcd6994b65ba947b41ae7d2519a960185a029", "parents": [ "3cb4f9fa0c5f3ded9f70f85b70ee6d429834f911" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Oct 16 23:25:43 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:44 2007 -0700" }, "message": "lib: percpu_counter variable batch\n\nBecause the current batch setup has an quadric error bound on the counter,\nallow for an alternative setup.\n\nSigned-off-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": "aa0dff2d09bfa50b7d02714a45920c64568e699d", "tree": "ef94abad6a7c82da3ef9ecfb296d9bc1d3d4efb6", "parents": [ "c4dc4beed23827e155d7cbc2a1ffa3949eddd194" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Oct 16 23:25:42 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:44 2007 -0700" }, "message": "lib: percpu_counter_add\n\n s/percpu_counter_mod/percpu_counter_add/\n\nBecause its a better name, _mod implies modulo.\n\nSigned-off-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": "b4ef0296f214a1e0e65f161f88663b0ca1acca31", "tree": "57d0aa7e7201b6becf3bc69763e3efb090a297ce", "parents": [ "c67ad917cbf21b2862e2cf8e8b28339872ef7927" ], "author": { "name": "Andrew Morton", "email": "akpm@linux-foundation.org", "time": "Sun Jul 15 23:39:51 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Jul 16 09:05:41 2007 -0700" }, "message": "percpu_counters: use for_each_online_cpu()\n\nNow that we have implemented hotunplug-time counter spilling,\npercpu_counter_sum() only needs to look at online CPUs.\n\nCc: Gautham R Shenoy \u003cego@in.ibm.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: 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": "c67ad917cbf21b2862e2cf8e8b28339872ef7927", "tree": "362d8cf8668998b8cd5deb611693f584b8df5ee5", "parents": [ "85420ccad1610f123365eec89848ef25641bc6b7" ], "author": { "name": "Andrew Morton", "email": "akpm@linux-foundation.org", "time": "Sun Jul 15 23:39:51 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Jul 16 09:05:41 2007 -0700" }, "message": "percpu_counters(): use cpu notifiers\n\nper-cpu counters presently must iterate over all possible CPUs in the\nexhaustive percpu_counter_sum().\n\nBut it can be much better to only iterate over the presently-online CPUs. To\ndo this, we must arrange for an offlined CPU\u0027s count to be spilled into the\ncounter\u0027s central count.\n\nWe can do this for all percpu_counters in the machine by linking them into a\nsingle global list and walking that list at CPU_DEAD time.\n\n(I hope. Might have race windows in which the percpu_counter_sum() count is\ninaccurate?)\n\nCc: Gautham R Shenoy \u003cego@in.ibm.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: 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": "0216bfcffe424a5473daa4da47440881b36c1f41", "tree": "80eaa49bfc644b070e57c251285048992ac6fafc", "parents": [ "3cbc564024d8f174202f023e8a2991782f6a9431" ], "author": { "name": "Mingming Cao", "email": "cmm@us.ibm.com", "time": "Fri Jun 23 02:05:41 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jun 23 07:43:06 2006 -0700" }, "message": "[PATCH] percpu counter data type changes to suppport more than 2**31 ext3 free blocks counter\n\nThe percpu counter data type are changed in this set of patches to support\nmore users like ext3 who need more than 32 bit to store the free blocks\ntotal in the filesystem.\n\n- Generic perpcu counters data type changes. The size of the global counter\n and local counter were explictly specified using s64 and s32. The global\n counter is changed from long to s64, while the local counter is changed from\n long to s32, so we could avoid doing 64 bit update in most cases.\n\n- Users of the percpu counters are updated to make use of the new\n percpu_counter_init() routine now taking an additional parameter to allow\n users to pass the initial value of the global counter.\n\nSigned-off-by: Mingming Cao \u003ccmm@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "3cbc564024d8f174202f023e8a2991782f6a9431", "tree": "5d523ef9694b7a0bf07d4db58718f4654afa3f04", "parents": [ "d09042da7284a86ffbdd18695f517a71514ed598" ], "author": { "name": "Ravikiran G Thirumalai", "email": "kiran@scalex86.org", "time": "Fri Jun 23 02:05:40 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jun 23 07:43:06 2006 -0700" }, "message": "[PATCH] percpu_counters: create lib/percpu_counter.c\n\n- Move percpu_counter routines from mm/swap.c to lib/percpu_counter.c\n\nSigned-off-by: Ravikiran Thirumalai \u003ckiran@scalex86.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" } ] }