)]}' { "log": [ { "commit": "06991c28f37ad68e5c03777f5c3b679b56e3dac1", "tree": "4be75788e21c3c644fe6d39abf47693a171cf4f8", "parents": [ "460dc1eecf37263c8e3b17685ef236f0d236facb", "74fef7a8fd1d2bd94f925d6638bb4c3049e7c381" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Feb 21 12:05:51 2013 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Feb 21 12:05:51 2013 -0800" }, "message": "Merge tag \u0027driver-core-3.9-rc1\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core\n\nPull driver core patches from Greg Kroah-Hartman:\n \"Here is the big driver core merge for 3.9-rc1\n\n There are two major series here, both of which touch lots of drivers\n all over the kernel, and will cause you some merge conflicts:\n\n - add a new function called devm_ioremap_resource() to properly be\n able to check return values.\n\n - remove CONFIG_EXPERIMENTAL\n\n Other than those patches, there\u0027s not much here, some minor fixes and\n updates\"\n\nFix up trivial conflicts\n\n* tag \u0027driver-core-3.9-rc1\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (221 commits)\n base: memory: fix soft/hard_offline_page permissions\n drivercore: Fix ordering between deferred_probe and exiting initcalls\n backlight: fix class_find_device() arguments\n TTY: mark tty_get_device call with the proper const values\n driver-core: constify data for class_find_device()\n firmware: Ignore abort check when no user-helper is used\n firmware: Reduce ifdef CONFIG_FW_LOADER_USER_HELPER\n firmware: Make user-mode helper optional\n firmware: Refactoring for splitting user-mode helper code\n Driver core: treat unregistered bus_types as having no devices\n watchdog: Convert to devm_ioremap_resource()\n thermal: Convert to devm_ioremap_resource()\n spi: Convert to devm_ioremap_resource()\n power: Convert to devm_ioremap_resource()\n mtd: Convert to devm_ioremap_resource()\n mmc: Convert to devm_ioremap_resource()\n mfd: Convert to devm_ioremap_resource()\n media: Convert to devm_ioremap_resource()\n iommu: Convert to devm_ioremap_resource()\n drm: Convert to devm_ioremap_resource()\n ...\n" }, { "commit": "957d1282bb8c07e682e142b9237cd9fcb8348a0b", "tree": "a9b5690066c3268e7971c363b34f1a5deb664e2e", "parents": [ "89a22dadb8810983868f5bbbc5530b27bf714a60" ], "author": { "name": "Li Fei", "email": "fei.li@intel.com", "time": "Fri Feb 01 08:56:03 2013 +0000" }, "committer": { "name": "Rafael J. Wysocki", "email": "rafael.j.wysocki@intel.com", "time": "Sat Feb 09 22:32:48 2013 +0100" }, "message": "suspend: enable freeze timeout configuration through sys\n\nAt present, the value of timeout for freezing is 20s, which is\nmeaningless in case that one thread is frozen with mutex locked\nand another thread is trying to lock the mutex, as this time of\nfreezing will fail unavoidably.\nAnd if there is no new wakeup event registered, the system will\nwaste at most 20s for such meaningless trying of freezing.\n\nWith this patch, the value of timeout can be configured to smaller\nvalue, so such meaningless trying of freezing will be aborted in\nearlier time, and later freezing can be also triggered in earlier\ntime. And more power will be saved.\nIn normal case on mobile phone, it costs real little time to freeze\nprocesses. On some platform, it only costs about 20ms to freeze\nuser space processes and 10ms to freeze kernel freezable threads.\n\nSigned-off-by: Liu Chuansheng \u003cchuansheng.liu@intel.com\u003e\nSigned-off-by: Li Fei \u003cfei.li@intel.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crafael.j.wysocki@intel.com\u003e\n" }, { "commit": "7e73c5ae6e7991a6c01f6d096ff8afaef4458c36", "tree": "cd2df301d9ccda6d18f6cbe09f481f38cb78271a", "parents": [ "fbadc58dd3a52c330c8f3926aa93011bf9d91fa0" ], "author": { "name": "Zhang Rui", "email": "rui.zhang@intel.com", "time": "Wed Feb 06 13:00:36 2013 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rafael.j.wysocki@intel.com", "time": "Sat Feb 09 22:30:44 2013 +0100" }, "message": "PM: Introduce suspend state PM_SUSPEND_FREEZE\n\nPM_SUSPEND_FREEZE state is a general state that\ndoes not need any platform specific support, it equals\nfrozen processes + suspended devices + idle processors.\n\nCompared with PM_SUSPEND_MEMORY,\nPM_SUSPEND_FREEZE saves less power\nbecause the system is still in a running state.\nPM_SUSPEND_FREEZE has less resume latency because it does not\ntouch BIOS, and the processors are in idle state.\n\nCompared with RTPM/idle,\nPM_SUSPEND_FREEZE saves more power as\n1. the processor has longer sleep time because processes are frozen.\n The deeper c-state the processor supports, more power saving we can get.\n2. PM_SUSPEND_FREEZE uses system suspend code path, thus we can get\n more power saving from the devices that does not have good RTPM support.\n\nThis state is useful for\n1) platforms that do not have STR, or have a broken STR.\n2) platforms that have an extremely low power idle state,\n which can be used to replace STR.\n\nThe following describes how PM_SUSPEND_FREEZE state works.\n1. echo freeze \u003e /sys/power/state\n2. the processes are frozen.\n3. all the devices are suspended.\n4. all the processors are blocked by a wait queue\n5. all the processors idles and enters (Deep) c-state.\n6. an interrupt fires.\n7. a processor is woken up and handles the irq.\n8. if it is a general event,\n a) the irq handler runs and quites.\n b) goto step 4.\n9. if it is a real wake event, say, power button pressing, keyboard touch, mouse moving,\n a) the irq handler runs and activate the wakeup source\n b) wakeup_source_activate() notifies the wait queue.\n c) system starts resuming from PM_SUSPEND_FREEZE\n10. all the devices are resumed.\n11. all the processes are unfrozen.\n12. system is back to working.\n\nKnown Issue:\nThe wakeup of this new PM_SUSPEND_FREEZE state may behave differently\nfrom the previous suspend state.\nTake ACPI platform for example, there are some GPEs that only enabled\nwhen the system is in sleep state, to wake the system backk from S3/S4.\nBut we are not touching these GPEs during transition to PM_SUSPEND_FREEZE.\nThis means we may lose some wake event.\nBut on the other hand, as we do not disable all the Interrupts during\nPM_SUSPEND_FREEZE, we may get some extra \"wakeup\" Interrupts, that are\nnot available for S3/S4.\n\nThe patches has been tested on an old Sony laptop, and here are the results:\n\nAverage Power:\n1. RPTM/idle for half an hour:\n 14.8W, 12.6W, 14.1W, 12.5W, 14.4W, 13.2W, 12.9W\n2. Freeze for half an hour:\n 11W, 10.4W, 9.4W, 11.3W 10.5W\n3. RTPM/idle for three hours:\n 11.6W\n4. Freeze for three hours:\n 10W\n5. Suspend to Memory:\n 0.5~0.9W\n\nAverage Resume Latency:\n1. RTPM/idle with a black screen: (From pressing keyboard to screen back)\n Less than 0.2s\n2. Freeze: (From pressing power button to screen back)\n 2.50s\n3. Suspend to Memory: (From pressing power button to screen back)\n 4.33s\n\n\u003eFrom the results, we can see that all the platforms should benefit from\nthis patch, even if it does not have Low Power S0.\n\nSigned-off-by: Zhang Rui \u003crui.zhang@intel.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crafael.j.wysocki@intel.com\u003e\n" }, { "commit": "9f3b795a626ee79574595e06d1437fe0c7d51d29", "tree": "1952cb2ac880c0e66f291916815c2a36b4ceb300", "parents": [ "807be03cae191cb88e2f267adcd49aba785c658b" ], "author": { "name": "Michał Mirosław", "email": "mirq-linux@rere.qmqm.pl", "time": "Fri Feb 01 20:40:17 2013 +0100" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@linuxfoundation.org", "time": "Wed Feb 06 12:18:56 2013 -0800" }, "message": "driver-core: constify data for class_find_device()\n\nAll in-kernel users of class_find_device() don\u0027t really need mutable\ndata for match callback.\n\nIn two places (kernel/power/suspend_test.c, drivers/scsi/osd/osd_uld.c)\nthis patch changes match callbacks to use const search data.\n\nThe const is propagated to rtc_class_open() and power_supply_get_by_name()\nparameters.\n\nNote that there\u0027s a dev reference leak in suspend_test.c that\u0027s not\ntouched in this patch.\n\nSigned-off-by: Michał Mirosław \u003cmirq-linux@rere.qmqm.pl\u003e\nAcked-by: Grant Likely \u003cgrant.likely@secretlab.ca\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@linuxfoundation.org\u003e\n" }, { "commit": "ed1ac6e91a3ff7c561008ba57747cd6cbc49385e", "tree": "52598ded2a8bea2486170169b4687ad8aadf8a67", "parents": [ "a4ca26a43e39d521b3913f09faf82dfbbbca5f6a" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Fri Jan 11 13:37:33 2013 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rafael.j.wysocki@intel.com", "time": "Sat Jan 26 00:39:11 2013 +0100" }, "message": "PM: don\u0027t use [delayed_]work_pending()\n\nThere\u0027s no need to test whether a (delayed) work item is pending\nbefore queueing, flushing or cancelling it, so remove work_pending()\ntests used in those cases.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Rafael J. Wysocki \u003crafael.j.wysocki@intel.com\u003e\n" }, { "commit": "d206e09036d6201f90b2719484c8a59526c46125", "tree": "84b9057919bcb8cfd1cff47baa5fc74457e77d6d", "parents": [ "fef3ff2eb777e76cfa5ae67591982d902c17139c", "15ef4ffaa797034d5ff82844daf8f595d7c6d53c" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Dec 12 08:18:24 2012 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Dec 12 08:18:24 2012 -0800" }, "message": "Merge branch \u0027for-3.8\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup\n\nPull cgroup changes from Tejun Heo:\n \"A lot of activities on cgroup side. The big changes are focused on\n making cgroup hierarchy handling saner.\n\n - cgroup_rmdir() had peculiar semantics - it allowed cgroup\n destruction to be vetoed by individual controllers and tried to\n drain refcnt synchronously. The vetoing never worked properly and\n caused good deal of contortions in cgroup. memcg was the last\n reamining user. Michal Hocko removed the usage and cgroup_rmdir()\n path has been simplified significantly. This was done in a\n separate branch so that the memcg people can base further memcg\n changes on top.\n\n - The above allowed cleaning up cgroup lifecycle management and\n implementation of generic cgroup iterators which are used to\n improve hierarchy support.\n\n - cgroup_freezer updated to allow migration in and out of a frozen\n cgroup and handle hierarchy. If a cgroup is frozen, all descendant\n cgroups are frozen.\n\n - netcls_cgroup and netprio_cgroup updated to handle hierarchy\n properly.\n\n - Various fixes and cleanups.\n\n - Two merge commits. One to pull in memcg and rmdir cleanups (needed\n to build iterators). The other pulled in cgroup/for-3.7-fixes for\n device_cgroup fixes so that further device_cgroup patches can be\n stacked on top.\"\n\nFixed up a trivial conflict in mm/memcontrol.c as per Tejun (due to\ncommit bea8c150a7 (\"memcg: fix hotplugged memory zone oops\") in master\ntouching code close to commit 2ef37d3fe4 (\"memcg: Simplify\nmem_cgroup_force_empty_list error handling\") in for-3.8)\n\n* \u0027for-3.8\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (65 commits)\n cgroup: update Documentation/cgroups/00-INDEX\n cgroup_rm_file: don\u0027t delete the uncreated files\n cgroup: remove subsystem files when remounting cgroup\n cgroup: use cgroup_addrm_files() in cgroup_clear_directory()\n cgroup: warn about broken hierarchies only after css_online\n cgroup: list_del_init() on removed events\n cgroup: fix lockdep warning for event_control\n cgroup: move list add after list head initilization\n netprio_cgroup: allow nesting and inherit config on cgroup creation\n netprio_cgroup: implement netprio[_set]_prio() helpers\n netprio_cgroup: use cgroup-\u003eid instead of cgroup_netprio_state-\u003eprioidx\n netprio_cgroup: reimplement priomap expansion\n netprio_cgroup: shorten variable names in extend_netdev_table()\n netprio_cgroup: simplify write_priomap()\n netcls_cgroup: move config inheritance to -\u003ecss_online() and remove .broken_hierarchy marking\n cgroup: remove obsolete guarantee from cgroup_task_migrate.\n cgroup: add cgroup-\u003eid\n cgroup, cpuset: remove cgroup_subsys-\u003epost_clone()\n cgroup: s/CGRP_CLONE_CHILDREN/CGRP_CPUSET_CLONE_CHILDREN/\n cgroup: rename -\u003ecreate/post_create/pre_destroy/destroy() to -\u003ecss_alloc/online/offline/free()\n ...\n" }, { "commit": "170bb4c800d2b65df52f37400fb20276273650d8", "tree": "86ff97efaeeac6e8533feb4899ec674ddbc0a065", "parents": [ "64adb0192ff309051492b34139bb842024ebb119", "e5f5762177be52fde50ccba88938d66b5103c8e0" ], "author": { "name": "Rafael J. Wysocki", "email": "rafael.j.wysocki@intel.com", "time": "Thu Nov 29 21:46:48 2012 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rafael.j.wysocki@intel.com", "time": "Thu Nov 29 21:46:48 2012 +0100" }, "message": "Merge branch \u0027pm-sleep\u0027\n\n* pm-sleep:\n PM / Freezer: Fixup compile error of try_to_freeze_nowarn()\n driver core / PM: move the calling to device_pm_remove behind the calling to bus_remove_device\n PM / Hibernate: use rb_entry\n PM / sysfs: replace strict_str* with kstrto*\n" }, { "commit": "8316bd72c0248adbb9572abf2dd045a95f682bcd", "tree": "ad2c06325c8ac48109c04055fe6375293d5d98ca", "parents": [ "883ee4f79d636d13f24c2479c66d42cb652b0239" ], "author": { "name": "Davidlohr Bueso", "email": "dave@gnu.org", "time": "Tue Oct 23 01:21:09 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rafael.j.wysocki@intel.com", "time": "Thu Nov 15 00:37:08 2012 +0100" }, "message": "PM / Hibernate: use rb_entry\n\nSince the software suspend extents are organized in an rbtree, use rb_entry\ninstead of container_of, as it is semantically more appropriate in order to\nget a node as it is iterated.\n\nSigned-off-by: Davidlohr Bueso \u003cdave@gnu.org\u003e\nSigned-off-by: Rafael J. Wysocki \u003crafael.j.wysocki@intel.com\u003e\n" }, { "commit": "883ee4f79d636d13f24c2479c66d42cb652b0239", "tree": "4fb2bf51ac968f6ee1118d3cb4da4ece79a6fafb", "parents": [ "77b67063bb6bce6d475e910d3b886a606d0d91f7" ], "author": { "name": "Daniel Walter", "email": "sahne@0x90.at", "time": "Tue Oct 23 01:20:35 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rafael.j.wysocki@intel.com", "time": "Thu Nov 15 00:37:08 2012 +0100" }, "message": "PM / sysfs: replace strict_str* with kstrto*\n\nReplace strict_strtoul() with kstrtoul() in pm_async_store() and\npm_qos_power_write().\n\n[rjw: Modified subject and changelog.]\n\nSigned-off-by: Daniel Walter \u003csahne@0x90.at\u003e\nAcked-by: Pavel Machek \u003cpavel@ucw.cz\u003e\nSigned-off-by: Rafael J. Wysocki \u003crafael.j.wysocki@intel.com\u003e\n" }, { "commit": "5d8f72b55c275677865de670fa147ed318191d81", "tree": "58f4f571440f412861a232ed0c5753771e5a6e58", "parents": [ "ead5c473712eb26db792b18a4dc98fdb312883fe" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Fri Oct 26 19:46:06 2012 +0200" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Fri Oct 26 14:27:49 2012 -0700" }, "message": "freezer: change ptrace_stop/do_signal_stop to use freezable_schedule()\n\ntry_to_freeze_tasks() and cgroup_freezer rely on scheduler locks\nto ensure that a task doing STOPPED/TRACED -\u003e RUNNING transition\ncan\u0027t escape freezing. This mostly works, but ptrace_stop() does\nnot necessarily call schedule(), it can change task-\u003estate back to\nRUNNING and check freezing() without any lock/barrier in between.\n\nWe could add the necessary barrier, but this patch changes\nptrace_stop() and do_signal_stop() to use freezable_schedule().\nThis fixes the race, freezer_count() and freezer_should_skip()\ncarefully avoid the race.\n\nAnd this simplifies the code, try_to_freeze_tasks/update_if_frozen\nno longer need to use task_is_stopped_or_traced() checks with the\nnon trivial assumptions. We can rely on the mechanism which was\nspecially designed to mark the sleeping task as \"frozen enough\".\n\nv2: As Tejun pointed out, we can also change get_signal_to_deliver()\nand move try_to_freeze() up before \u0027relock\u0027 label.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\n" }, { "commit": "5efbe4279f959a3f5ed26adf5f05cb78dd1ffa7e", "tree": "ebc9bc44e7ac33b11c187850291114f30c39455a", "parents": [ "5f986c590fcf4284924fcda991cf14ab32bff49f" ], "author": { "name": "Rafael J. Wysocki", "email": "rafael.j.wysocki@intel.com", "time": "Tue Oct 23 01:07:46 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rafael.j.wysocki@intel.com", "time": "Tue Oct 23 01:07:46 2012 +0200" }, "message": "PM / QoS: Introduce request and constraint data types for PM QoS flags\n\nIntroduce struct pm_qos_flags_request and struct pm_qos_flags\nrepresenting PM QoS flags request type and PM QoS flags constraint\ntype, respectively. With these definitions the data structures\nwill be arranged so that the list member of a struct pm_qos_flags\nobject will contain the head of a list of struct pm_qos_flags_request\nobjects representing all of the \"flags\" requests present for the\ngiven device. Then, the effective_flags member of a struct\npm_qos_flags object will contain the bitwise OR of the flags members\nof all the struct pm_qos_flags_request objects in the list.\n\nAdditionally, introduce helper function pm_qos_update_flags()\nallowing the caller to manage the list of struct pm_qos_flags_request\npointed to by the list member of struct pm_qos_flags.\n\nThe flags are of type s32 so that the request\u0027s \"value\" field\nis always of the same type regardless of what kind of request it\nis (latency requests already have value fields of type s32).\n\nSigned-off-by: Rafael J. Wysocki \u003crafael.j.wysocki@intel.com\u003e\nReviewed-by: Jean Pihet \u003cj-pihet@ti.com\u003e\nAcked-by: mark gross \u003cmarkgross@thegnar.org\u003e\n" }, { "commit": "87a2337abdd752d711724d7654a6db1b5b4c0d4d", "tree": "bd59e6a86d5b623f065ab162a465af7ceed7466d", "parents": [ "cf899680feb87af09ea18eea87aa03ea56afd9ba", "c6a57bfffea5b673e5b4f9aeff85a00607e59077" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Mon Sep 17 20:25:51 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Mon Sep 17 20:25:51 2012 +0200" }, "message": "Merge branch \u0027pm-qos\u0027\n\n* pm-qos:\n PM / QoS: Add return code to pm_qos_get_value function.\n" }, { "commit": "d6a56ae7ac6121ef99500b3380e98f83a3d9e102", "tree": "372217920c4cbbf11eb7e332ddfa54e63eaa9d25", "parents": [ "079d364b042afbe811c4bb0cb57fcbf4f1cfab6d", "bbdc18a3fb6740619f0d037241c85dc6cd4517aa" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Mon Sep 17 20:25:38 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Mon Sep 17 20:25:38 2012 +0200" }, "message": "Merge branch \u0027pm-sleep\u0027\n\n* pm-sleep:\n properly __init-annotate pm_sysrq_init()\n PM / wakeup: Use irqsave/irqrestore for events_lock\n PM / Freezer: Fix small typo \"regrigerator\"\n PM / Sleep: Print name of wakeup source that aborts suspend\n" }, { "commit": "bbdc18a3fb6740619f0d037241c85dc6cd4517aa", "tree": "a8374d4b123525916e4138bd902f8e36fe4be5c6", "parents": [ "4955070974ecfa0b1ae9d2506f529460fd3a4b0b" ], "author": { "name": "Jan Beulich", "email": "JBeulich@suse.com", "time": "Mon Sep 10 12:05:18 2012 +0000" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Mon Sep 10 21:21:58 2012 +0200" }, "message": "properly __init-annotate pm_sysrq_init()\n\nThis is used only as argument to subsys_initcall().\n\nSigned-off-by: Jan Beulich \u003cjbeulich@suse.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "c6a57bfffea5b673e5b4f9aeff85a00607e59077", "tree": "d896e9fcd61dccd27f253c794e2f742c6f59907d", "parents": [ "4cbe5a555fa58a79b6ecbb6c531b8bab0650778d" ], "author": { "name": "Luis Gonzalez Fernandez", "email": "luisgf@gmail.com", "time": "Fri Sep 07 21:35:21 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Fri Sep 07 21:35:21 2012 +0200" }, "message": "PM / QoS: Add return code to pm_qos_get_value function.\n\npm_qos_get_value don\u0027t return a return code in all cases. It\u0027s sure that\nanything interesting happend after BUG() but this prevent any compilation\nwarning.\n\n[rjw: Chaneged the new return value to PM_QOS_DEFAULT_VALUE.]\n\nSigned-off-by: Luis Gonzalez Fernandez \u003cluisgf@gmail.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "77f827de07432a74821cf0f831d699544b2d474f", "tree": "c7abd8f50c25b43ff32ba5a4200cf5e4fcd31f89", "parents": [ "802d8b49a7705298b62ac35a59b867f1288caaf3" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Mon Aug 06 01:39:57 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Tue Sep 04 01:36:01 2012 +0200" }, "message": "PM / Domains: Add power off/on function for system core suspend stage\n\nIntroduce function pm_genpd_syscore_switch() and two wrappers around\nit, pm_genpd_syscore_poweroff() and pm_genpd_syscore_poweron(),\nallowing the callers to let the generic PM domains framework know\nthat the given device is not necessary any more and its PM domain\ncan be turned off (the former) or that the given device will be\nrequired immediately, so its PM domain has to be turned on (the\nlatter) during the system core (syscore) stage of system suspend\n(or hibernation) and resume.\n\nThese functions will be used for handling devices registered as\nclock sources and clock event devices that belong to PM domains.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "5834ec3aea8a84b70efeb52ee91a8f8b1042cd2a", "tree": "9f5a9b59346d1ebd878346e3fe00666dae3e06ab", "parents": [ "a938da0682c2487f6aafc9a7c3caa8d675acdb38" ], "author": { "name": "Sedat Dilek", "email": "sedat.dilek@gmail.com", "time": "Thu Aug 23 02:47:13 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu Aug 23 02:47:13 2012 +0200" }, "message": "PM / Freezer: Fix small typo \"regrigerator\"\n\nNoticed when digging into a suspend issue in linux-next (next-20120821).\n\nFor more details see \u003chttp://marc.info/?t\u003d134554708000002\u0026r\u003d1\u0026w\u003d2\u003e.\n\nSigned-off-by: Sedat Dilek \u003csedat.dilek@gmail.com\u003e\nAcked-by: Pavel Machek \u003cpavel@ucw.cz\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "300d3739e873d50d4c6e3656f89007a217fb1d29", "tree": "05ed9e06da5920926e0048ee0591a724ee487968", "parents": [ "77254950bb174d637cd88d1a74e137ecf3185a65" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Tue Aug 07 13:50:22 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Wed Aug 08 20:49:45 2012 +0200" }, "message": "Revert \"NMI watchdog: fix for lockup detector breakage on resume\"\n\nRevert commit 45226e9 (NMI watchdog: fix for lockup detector breakage\non resume) which breaks resume from system suspend on my SH7372\nMackerel board (by causing a NULL pointer dereference to happen) and\nis generally wrong, because it abuses the CPU hotplug functionality\nin a shamelessly blatant way.\n\nThe original issue should be addressed through appropriate syscore\nresume callback instead.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "45226e944ce071d0231949f2fea90969437cd2dc", "tree": "6f323df1f61d028f77175525ae54948820cd09a1", "parents": [ "190320c3b6640d4104650f55ff69611e050ea06b" ], "author": { "name": "Sameer Nanda", "email": "snanda@chromium.org", "time": "Mon Jul 30 14:40:00 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Jul 30 17:25:13 2012 -0700" }, "message": "NMI watchdog: fix for lockup detector breakage on resume\n\nOn the suspend/resume path the boot CPU does not go though an\noffline-\u003eonline transition. This breaks the NMI detector post-resume\nsince it depends on PMU state that is lost when the system gets\nsuspended.\n\nFix this by forcing a CPU offline-\u003eonline transition for the lockup\ndetector on the boot CPU during resume.\n\nTo provide more context, we enable NMI watchdog on Chrome OS. We have\nseen several reports of systems freezing up completely which indicated\nthat the NMI watchdog was not firing for some reason.\n\nDebugging further, we found a simple way of repro\u0027ing system freezes --\nissuing the command \u0027tasket 1 sh -c \"echo nmilockup \u003e /proc/breakme\"\u0027\nafter the system has been suspended/resumed one or more times.\n\nWith this patch in place, the system freeze result in panics, as\nexpected.\n\nThese panics provide a nice stack trace for us to debug the actual issue\ncausing the freeze.\n\n[akpm@linux-foundation.org: fiddle with code comment]\n[akpm@linux-foundation.org: make lockup_detector_bootcpu_resume() conditional on CONFIG_SUSPEND]\n[akpm@linux-foundation.org: fix section errors]\nSigned-off-by: Sameer Nanda \u003csnanda@chromium.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: \"Rafael J. Wysocki\" \u003crjw@sisk.pl\u003e\nCc: Don Zickus \u003cdzickus@redhat.com\u003e\nCc: Mandeep Singh Baines \u003cmsb@chromium.org\u003e\nCc: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nCc: Anshuman Khandual \u003ckhandual@linux.vnet.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7100e505b76b4e2efd88b2459d1a932214e29f8a", "tree": "a8eae8687dc1511c89463b1eb93c8349a7471ab3", "parents": [ "cb47c1831fa406c964468b259f2082c16cc3f757", "75a4161a58dd157a2bd2dc8e9986e45b62ac46cf" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Jul 22 13:36:52 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Jul 22 13:36:52 2012 -0700" }, "message": "Merge tag \u0027pm-for-3.6-rc1\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm\n\nPull power management updates from Rafael Wysocki:\n\n - ACPI conversion to PM handling based on struct dev_pm_ops.\n - Conversion of a number of platform drivers to PM handling based on\n struct dev_pm_ops and removal of empty legacy PM callbacks from a\n couple of PCI drivers.\n - Suspend-to-both for in-kernel hibernation from Bojan Smojver.\n - cpuidle fixes and cleanups from ShuoX Liu, Daniel Lezcano and Preeti\n Murthy.\n - cpufreq bug fixes from Jonghwa Lee and Stephen Boyd.\n - Suspend and hibernate fixes from Srivatsa Bhat and Colin Cross.\n - Generic PM domains framework updates.\n - RTC CMOS wakeup signaling update from Paul Fox.\n - sparse warnings fixes from Sachin Kamat.\n - Build warnings fixes for the generic PM domains framework and PM\n sysfs code.\n - sysfs switch for printing device suspend times from Sameer Nanda.\n - Documentation fix from Oskar Schirmer.\n\n* tag \u0027pm-for-3.6-rc1\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (70 commits)\n cpufreq: Fix sysfs deadlock with concurrent hotplug/frequency switch\n EXYNOS: bugfix on retrieving old_index from freqs.old\n PM / Sleep: call early resume handlers when suspend_noirq fails\n PM / QoS: Use NULL pointer instead of plain integer in qos.c\n PM / QoS: Use NULL pointer instead of plain integer in pm_qos.h\n PM / Sleep: Require CAP_BLOCK_SUSPEND to use wake_lock/wake_unlock\n PM / Sleep: Add missing static storage class specifiers in main.c\n cpuilde / ACPI: remove time from acpi_processor_cx structure\n cpuidle / ACPI: remove usage from acpi_processor_cx structure\n cpuidle / ACPI : remove latency_ticks from acpi_processor_cx structure\n rtc-cmos: report wakeups from interrupt handler\n PM / Sleep: Fix build warning in sysfs.c for CONFIG_PM_SLEEP unset\n PM / Domains: Fix build warning for CONFIG_PM_RUNTIME unset\n olpc-xo15-sci: Use struct dev_pm_ops for power management\n PM / Domains: Replace plain integer with NULL pointer in domain.c file\n PM / Domains: Add missing static storage class specifier in domain.c file\n PM / crypto / ux500: Use struct dev_pm_ops for power management\n PM / IPMI: Remove empty legacy PCI PM callbacks\n tpm_nsc: Use struct dev_pm_ops for power management\n tpm_tis: Use struct dev_pm_ops for power management\n ...\n" }, { "commit": "eea03c20ae38a55405c0865ed9adfccc400e4c8e", "tree": "09800af230cd1ef6d9d83ac5e057d8085feca601", "parents": [ "e2f3b78557ff11f58d836e016900c3210f4fb1c1" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 18 18:15:46 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 18 18:15:46 2012 -0700" }, "message": "Make wait_for_device_probe() also do scsi_complete_async_scans()\n\nCommit a7a20d103994 (\"sd: limit the scope of the async probe domain\")\nmake the SCSI device probing run device discovery in it\u0027s own async\ndomain.\n\nHowever, as a result, the partition detection was no longer synchronized\nby async_synchronize_full() (which, despite the name, only synchronizes\nthe global async space, not all of them). Which in turn meant that\n\"wait_for_device_probe()\" would not wait for the SCSI partitions to be\nparsed.\n\nAnd \"wait_for_device_probe()\" was what the boot time init code relied on\nfor mounting the root filesystem.\n\nNow, most people never noticed this, because not only is it\ntiming-dependent, but modern distributions all use initrd. So the root\nfilesystem isn\u0027t actually on a disk at all. And then before they\nactually mount the final disk filesystem, they will have loaded the\nscsi-wait-scan module, which not only does the expected\nwait_for_device_probe(), but also does scsi_complete_async_scans().\n\n[ Side note: scsi_complete_async_scans() had also been partially broken,\n but that was fixed in commit 43a8d39d0137 (\"fix async probe\n regression\"), so that same commit a7a20d103994 had actually broken\n setups even if you used scsi-wait-scan explicitly ]\n\nSolve this problem by just moving the scsi_complete_async_scans() call\ninto wait_for_device_probe(). Everybody who wants to wait for device\nprobing to finish really wants the SCSI probing to complete, so there\u0027s\nno reason not to do this.\n\nSo now \"wait_for_device_probe()\" really does what the name implies, and\nproperly waits for device probing to finish. This also removes the now\nunnecessary extra calls to scsi_complete_async_scans().\n\nReported-and-tested-by: Artem S. Tashkinov \u003ct.artem@mailcity.com\u003e\nCc: Dan Williams \u003cdan.j.williams@gmail.com\u003e\nCc: Alan Stern \u003cstern@rowland.harvard.edu\u003e\nCc: James Bottomley \u003cjbottomley@parallels.com\u003e\nCc: Borislav Petkov \u003cbp@amd64.org\u003e\nCc: linux-scsi \u003clinux-scsi@vger.kernel.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "11388c87d2abca1f01975ced28ce9eacea239104", "tree": "60e338e5ab817de96a461b08892e0663a316d67c", "parents": [ "823d93640927d739f7c918b73fe5ec494fb27e17" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu Jul 19 00:00:58 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu Jul 19 00:00:58 2012 +0200" }, "message": "PM / Sleep: Require CAP_BLOCK_SUSPEND to use wake_lock/wake_unlock\n\nRequire processes wanting to use the wake_lock/wake_unlock sysfs\nfiles to have the CAP_BLOCK_SUSPEND capability, which also is\nrequired for the eventpoll EPOLLWAKEUP flag to be effective, so that\nall interfaces related to blocking autosleep depend on the same\ncapability.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nCc: stable@vger.kernel.org\nAcked-by: Michael Kerrisk \u003cmtk.man-pages@gmail.com\u003e\n" }, { "commit": "d8150d350408de6fb2b9ee7b7625ae8e2bb7aa4a", "tree": "4bc399c1850a08b8b2573f01a23146e2fa2adeea", "parents": [ "b2df1d4f8b95d9d1e3f064cef02fc5c5116b05cf" ], "author": { "name": "Bojan Smojver", "email": "bojan@rexursive.com", "time": "Thu Jun 21 22:27:24 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun Jul 01 13:31:23 2012 +0200" }, "message": "PM / Hibernate: Print hibernation/thaw progress indicator one line at a time.\n\nWith the introduction of suspend to both into in-kernel hibernation\ncode, dmesg was getting polluted with backspace characters printed as\npart of image saving progress indicator. This patch introduces printing\nof progress indicator on image save/load every 10% and one line at a\ntime. As an additional benefit, all other messages emitted by the kernel\nduring hibernation/thaw should now print cleanly as well.\n\nSigned-off-by: Bojan Smojver \u003cbojan@rexursive.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "b2df1d4f8b95d9d1e3f064cef02fc5c5116b05cf", "tree": "6e891ad6ad748ea737ab5774983f90d9be720446", "parents": [ "4b7760ba0dd3319f66886ab2335a0fbecdbc808a" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu Jun 21 00:19:33 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun Jul 01 13:31:23 2012 +0200" }, "message": "PM / Sleep: Separate printing suspend times from initcall_debug\n\nChange the behavior of the newly introduced\n/sys/power/pm_print_times attribute so that its initial value\ndepends on initcall_debug, but setting it to 0 will cause device\nsuspend/resume times not to be printed, even if initcall_debug has\nbeen set. This way, the people who use initcall_debug for reasons\nother than PM debugging will be able to switch the suspend/resume\ntimes printing off, if need be.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nReviewed-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nAcked-by: Greg Kroah-Hartman \u003cgregkh@linuxfoundation.org\u003e\n" }, { "commit": "4b7760ba0dd3319f66886ab2335a0fbecdbc808a", "tree": "f619ead7186c286a5f8c786091af8c46de0decf3", "parents": [ "443772d408a25af62498793f6f805ce3c559309a" ], "author": { "name": "Sameer Nanda", "email": "snanda@chromium.org", "time": "Tue Jun 19 22:23:33 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun Jul 01 13:31:22 2012 +0200" }, "message": "PM / Sleep: add knob for printing device resume times\n\nAdded a new knob called /sys/power/pm_print_times. Setting it to 1\nenables printing of time taken by devices to suspend and resume.\nSetting it to 0 disables this printing (unless overridden by\ninitcall_debug kernel command line option).\n\nSigned-off-by: Sameer Nanda \u003csnanda@chromium.org\u003e\nAcked-by: Greg KH \u003cgregkh@linuxfoundation.org\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "443772d408a25af62498793f6f805ce3c559309a", "tree": "f89e50547524bbb275d38b8a39b1e4d82a18c22d", "parents": [ "62c552ccc3eda1198632a4f344aa32623d226bab" ], "author": { "name": "Srivatsa S. Bhat", "email": "srivatsa.bhat@linux.vnet.ibm.com", "time": "Sat Jun 16 15:30:45 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun Jul 01 13:31:22 2012 +0200" }, "message": "ftrace: Disable function tracing during suspend/resume and hibernation, again\n\nIf function tracing is enabled for some of the low-level suspend/resume\nfunctions, it leads to triple fault during resume from suspend, ultimately\nending up in a reboot instead of a resume (or a total refusal to come out\nof suspended state, on some machines).\n\nThis issue was explained in more detail in commit f42ac38c59e0a03d (ftrace:\ndisable tracing for suspend to ram). However, the changes made by that commit\ngot reverted by commit cbe2f5a6e84eebb (tracing: allow tracing of\nsuspend/resume \u0026 hibernation code again). So, unfortunately since things are\nnot yet robust enough to allow tracing of low-level suspend/resume functions,\nsuspend/resume is still broken when ftrace is enabled.\n\nSo fix this by disabling function tracing during suspend/resume \u0026 hibernation.\n\nSigned-off-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nCc: stable@vger.kernel.org\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "62c552ccc3eda1198632a4f344aa32623d226bab", "tree": "fbd85e76542a715a8e988dddb59e3df859939fb5", "parents": [ "6887a4131da3adaab011613776d865f4bcfb5678" ], "author": { "name": "Bojan Smojver", "email": "bojan@rexursive.com", "time": "Sat Jun 16 00:09:58 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun Jul 01 13:31:22 2012 +0200" }, "message": "PM / Hibernate: Enable suspend to both for in-kernel hibernation.\n\nIt is often useful to suspend to memory after hibernation image has been\nwritten to disk. If the battery runs out or power is otherwise lost, the\ncomputer will resume from the hibernated image. If not, it will resume\nfrom memory and hibernation image will be discarded.\n\nSigned-off-by: Bojan Smojver \u003cbojan@rexursive.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "2df83fa4bce421f8176932142f1004adfba0f9dd", "tree": "edd5051c5b388e82d8954ec09643873be9bc414c", "parents": [ "4e585d25e120f1eae0a3a8bf8f6ebc7692afec18" ], "author": { "name": "Minho Ban", "email": "mhban@samsung.com", "time": "Mon May 14 21:45:31 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Fri May 18 20:44:59 2012 +0200" }, "message": "PM / Hibernate: Use get_gendisk to verify partition if resume_file is integer format\n\nSometimes resume\u003d parameter comes in integer style (e.g. major:minor)\nand then name_to_dev_t can not detect partition properly. (especially\nasync device like usb, mmc).\n\nThis patch calls get_gendisk() if resumewait is true and resume_file\nis in integer format to work around this problem.\n\nSigned-off-by: Minho Ban \u003cmhban@samsung.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "4e585d25e120f1eae0a3a8bf8f6ebc7692afec18", "tree": "9385b0ca4d8de60c08896193a0187f5074b55496", "parents": [ "c73893e2ca731b4a81ae59246ab57979aa188777" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sat May 05 21:57:28 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Fri May 11 21:11:16 2012 +0200" }, "message": "PM / Sleep: User space wakeup sources garbage collector Kconfig option\n\nMake it possible to configure out the user space wakeup sources\ngarbage collector for debugging and default Android builds.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Arve Hjønnevåg \u003carve@android.com\u003e\n" }, { "commit": "c73893e2ca731b4a81ae59246ab57979aa188777", "tree": "bec6c0253b848ea658acb72de6bfd86e707bc798", "parents": [ "6237dd132d4eb408ffa80830fe395448e5657ab0" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sat May 05 21:57:20 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Fri May 11 21:11:02 2012 +0200" }, "message": "PM / Sleep: Make the limit of user space wakeup sources configurable\n\nMake it possible to configure out the check against the limit of\nuser space wakeup sources for debugging and default Android builds.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Arve Hjønnevåg \u003carve@android.com\u003e\n" }, { "commit": "040e5bf65e1ee66266bc314c5965518a7c21ff36", "tree": "ce2dce378ae0f765b6534a7cec0a5529ee09930b", "parents": [ "4d7e30d98939a0340022ccd49325a3d70f7e0238" ], "author": { "name": "Arve Hjønnevåg", "email": "arve@android.com", "time": "Fri May 04 00:14:21 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sat May 05 21:50:58 2012 +0200" }, "message": "PM / Sleep: Fix a mistake in a conditional in autosleep_store()\n\nThe condition check in autosleep_store() is incorrect and prevents\n/sys/power/autosleep from working as advertised. Fix that.\n\n[rjw: Added the changelog.]\n\nSigned-off-by: Arve Hjønnevåg \u003carve@android.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "b86ff9820fd5df69295273b9aa68e58786ffc23f", "tree": "e8af5745652c926b9a82b3b7531dc455564efdfb", "parents": [ "55850945e872531644f31fefd217d61dd15dcab8" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun Apr 29 22:53:42 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Tue May 01 21:26:05 2012 +0200" }, "message": "PM / Sleep: Add user space interface for manipulating wakeup sources, v3\n\nAndroid allows user space to manipulate wakelocks using two\nsysfs file located in /sys/power/, wake_lock and wake_unlock.\nWriting a wakelock name and optionally a timeout to the wake_lock\nfile causes the wakelock whose name was written to be acquired (it\nis created before is necessary), optionally with the given timeout.\nWriting the name of a wakelock to wake_unlock causes that wakelock\nto be released.\n\nImplement an analogous interface for user space using wakeup sources.\nAdd the /sys/power/wake_lock and /sys/power/wake_unlock files\nallowing user space to create, activate and deactivate wakeup\nsources, such that writing a name and optionally a timeout to\nwake_lock causes the wakeup source of that name to be activated,\noptionally with the given timeout. If that wakeup source doesn\u0027t\nexist, it will be created and then activated. Writing a name to\nwake_unlock causes the wakeup source of that name, if there is one,\nto be deactivated. Wakeup sources created with the help of\nwake_lock that haven\u0027t been used for more than 5 minutes are garbage\ncollected and destroyed. Moreover, there can be only WL_NUMBER_LIMIT\nwakeup sources created with the help of wake_lock present at a time.\n\nThe data type used to track wakeup sources created by user space is\ncalled \"struct wakelock\" to indicate the origins of this feature.\n\nThis version of the patch includes an rbtree manipulation fix from John Stultz.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Greg Kroah-Hartman \u003cgregkh@linuxfoundation.org\u003e\nReviewed-by: NeilBrown \u003cneilb@suse.de\u003e\n" }, { "commit": "55850945e872531644f31fefd217d61dd15dcab8", "tree": "412ee1338d0b69e4d6e2a5e518e30e6660704921", "parents": [ "7483b4a4d9abf9dcf1ffe6e805ead2847ec3264e" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun Apr 29 22:53:32 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Tue May 01 21:25:49 2012 +0200" }, "message": "PM / Sleep: Add \"prevent autosleep time\" statistics to wakeup sources\n\nAndroid uses one wakelock statistics that is only necessary for\nopportunistic sleep. Namely, the prevent_suspend_time field\naccumulates the total time the given wakelock has been locked\nwhile \"automatic suspend\" was enabled. Add an analogous field,\nprevent_sleep_time, to wakeup sources and make it behave in a similar\nway.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Greg Kroah-Hartman \u003cgregkh@linuxfoundation.org\u003e\n" }, { "commit": "7483b4a4d9abf9dcf1ffe6e805ead2847ec3264e", "tree": "d03af746dc3be6480580ec569e0c2d708031f0bd", "parents": [ "6791e36c4a40e8930e08669e60077eea6770c429" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun Apr 29 22:53:22 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Tue May 01 21:25:38 2012 +0200" }, "message": "PM / Sleep: Implement opportunistic sleep, v2\n\nIntroduce a mechanism by which the kernel can trigger global\ntransitions to a sleep state chosen by user space if there are no\nactive wakeup sources.\n\nIt consists of a new sysfs attribute, /sys/power/autosleep, that\ncan be written one of the strings returned by reads from\n/sys/power/state, an ordered workqueue and a work item carrying out\nthe \"suspend\" operations. If a string representing the system\u0027s\nsleep state is written to /sys/power/autosleep, the work item\ntriggering transitions to that state is queued up and it requeues\nitself after every execution until user space writes \"off\" to\n/sys/power/autosleep.\n\nThat work item enables the detection of wakeup events using the\nfunctions already defined in drivers/base/power/wakeup.c (with one\nsmall modification) and calls either pm_suspend(), or hibernate() to\nput the system into a sleep state. If a wakeup event is reported\nwhile the transition is in progress, it will abort the transition and\nthe \"system suspend\" work item will be queued up again.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Greg Kroah-Hartman \u003cgregkh@linuxfoundation.org\u003e\nReviewed-by: NeilBrown \u003cneilb@suse.de\u003e\n" }, { "commit": "5a21d489fd9541a4a66b9a500659abaca1b19a51", "tree": "0751e0cc65cd1ed56d7583c14355718191e667cb", "parents": [ "69964ea4c7b68c9399f7977aa5b9aa6539a6a98a" ], "author": { "name": "Bojan Smojver", "email": "bojan@rexursive.com", "time": "Sun Apr 29 22:42:06 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Tue May 01 21:24:15 2012 +0200" }, "message": "PM / Hibernate: Hibernate/thaw fixes/improvements\n\n 1. Do not allocate memory for buffers from emergency pools, unless\n absolutely required. Do not warn about and do not retry non-essential\n failed allocations.\n\n 2. Do not check the amount of free pages left on every single page\n write, but wait until one map is completely populated and then check.\n\n 3. Set maximum number of pages for read buffering consistently, instead\n of inadvertently depending on the size of the sector type.\n\n 4. Fix copyright line, which I missed when I submitted the hibernation\n threading patch.\n\n 5. Dispense with bit shifting arithmetic to improve readability.\n\n 6. Really recalculate the number of pages required to be free after all\n allocations have been done.\n\n 7. Fix calculation of pages required for read buffering. Only count in\n pages that do not belong to high memory.\n\nSigned-off-by: Bojan Smojver \u003cbojan@rexursive.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "f8262d476823a7ea1eb497ff9676d1eab2393c75", "tree": "dfe76c8ef2b3fc700d9550b85b69e414ef415de6", "parents": [ "66f75a5d028beaf67c931435fdc3e7823125730c" ], "author": { "name": "Bojan Smojver", "email": "bojan@rexursive.com", "time": "Tue Apr 24 23:53:28 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Tue Apr 24 23:53:28 2012 +0200" }, "message": "PM / Hibernate: fix the number of pages used for hibernate/thaw buffering\n\nHibernation regression fix, since 3.2.\n\nCalculate the number of required free pages based on non-high memory\npages only, because that is where the buffers will come from.\n\nCommit 081a9d043c983f161b78fdc4671324d1342b86bc introduced a new buffer\npage allocation logic during hibernation, in order to improve the\nperformance. The amount of pages allocated was calculated based on total\namount of pages available, although only non-high memory pages are\nusable for this purpose. This caused hibernation code to attempt to over\nallocate pages on platforms that have high memory, which led to hangs.\n\nSigned-off-by: Bojan Smojver \u003cbojan@rexursive.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@suse.de\u003e\n" }, { "commit": "c4772d192c70b61d52262b0db76f7abd8aeb51c6", "tree": "843ed935b04ed2e2ea8abbafa04f65132f47ba5a", "parents": [ "a36cf844c543c6193445a7b1492d16e5a8cf376e" ], "author": { "name": "MyungJoo Ham", "email": "myungjoo.ham@samsung.com", "time": "Wed Mar 28 23:31:24 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Wed Mar 28 23:31:24 2012 +0200" }, "message": "PM / QoS: add pm_qos_update_request_timeout() API\n\nThe new API, pm_qos_update_request_timeout() is to provide a timeout\nwith pm_qos_update_request.\n\nFor example, pm_qos_update_request_timeout(req, 100, 1000), means that\nQoS request on req with value 100 will be active for 1000 microseconds.\nAfter 1000 microseconds, the QoS request thru req is reset. If there\nwere another pm_qos_update_request(req, x) during the 1000 us, this\nnew request with value x will override as this is another request on the\nsame req handle. A new request on the same req handle will always\noverride the previous request whether it is the conventional request or\nit is the new timeout request.\n\nSigned-off-by: MyungJoo Ham \u003cmyungjoo.ham@samsung.com\u003e\nSigned-off-by: Kyungmin Park \u003ckyungmin.park@samsung.com\u003e\nAcked-by: Mark Gross \u003cmarkgross@thegnar.org\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "247bc03742545fec2f79939a3b9f738392a0f7b4", "tree": "ea07ff0b82da841ba89968d360d7c2560ae740b4", "parents": [ "1e73203cd1157a03facc41ffb54050f5b28e55bd" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Wed Mar 28 23:30:28 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Wed Mar 28 23:30:28 2012 +0200" }, "message": "PM / Sleep: Mitigate race between the freezer and request_firmware()\n\nThere is a race condition between the freezer and request_firmware()\nsuch that if request_firmware() is run on one CPU and\nfreeze_processes() is run on another CPU and usermodehelper_disable()\ncalled by it succeeds to grab umhelper_sem for writing before\nusermodehelper_read_trylock() called from request_firmware()\nacquires it for reading, the request_firmware() will fail and\ntrigger a WARN_ON() complaining that it was called at a wrong time.\nHowever, in fact, it wasn\u0027t called at a wrong time and\nfreeze_processes() simply happened to be executed simultaneously.\n\nTo avoid this race, at least in some cases, modify\nusermodehelper_read_trylock() so that it doesn\u0027t fail if the\nfreezing of tasks has just started and hasn\u0027t been completed yet.\nInstead, during the freezing of tasks, it will try to freeze the\ntask that has called it so that it can wait until user space is\nthawed without triggering the scary warning.\n\nFor this purpose, change usermodehelper_disabled so that it can\ntake three different values, UMH_ENABLED (0), UMH_FREEZING and\nUMH_DISABLED. The first one means that usermode helpers are\nenabled, the last one means \"hard disable\" (i.e. the system is not\nready for usermode helpers to be used) and the second one\nis reserved for the freezer. Namely, when freeze_processes() is\nstarted, it sets usermodehelper_disabled to UMH_FREEZING which\ntells usermodehelper_read_trylock() that it shouldn\u0027t fail just\nyet and should call try_to_freeze() if woken up and cannot\nreturn immediately. This way all freezable tasks that happen\nto call request_firmware() right before freeze_processes() is\nstarted and lose the race for umhelper_sem with it will be\nfrozen and will sleep until thaw_processes() unsets\nusermodehelper_disabled. [For the non-freezable callers of\nrequest_firmware() the race for umhelper_sem against\nfreeze_processes() is unfortunately unavoidable.]\n\nReported-by: Stephen Boyd \u003csboyd@codeaurora.org\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Greg Kroah-Hartman \u003cgregkh@linuxfoundation.org\u003e\nCc: stable@vger.kernel.org\n" }, { "commit": "1e73203cd1157a03facc41ffb54050f5b28e55bd", "tree": "12781ea69aa706291949bb1a10141a8a043e09d9", "parents": [ "7b5179ac14dbad945647ac9e76bbbf14ed9e0dbe" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Wed Mar 28 23:30:21 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Wed Mar 28 23:30:21 2012 +0200" }, "message": "PM / Sleep: Move disabling of usermode helpers to the freezer\n\nThe core suspend/hibernation code calls usermodehelper_disable() to\navoid race conditions between the freezer and the starting of\nusermode helpers and each code path has to do that on its own.\nHowever, it is always called right before freeze_processes()\nand usermodehelper_enable() is always called right after\nthaw_processes(). For this reason, to avoid code duplication and\nto make the connection between usermodehelper_disable() and the\nfreezer more visible, make freeze_processes() call it and remove the\ndirect usermodehelper_disable() and usermodehelper_enable() calls\nfrom all suspend/hibernation code paths.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Greg Kroah-Hartman \u003cgregkh@linuxfoundation.org\u003e\nCc: stable@vger.kernel.org\n" }, { "commit": "7b5179ac14dbad945647ac9e76bbbf14ed9e0dbe", "tree": "39213e51f3a19f3198929456f8ab4210a906674d", "parents": [ "9b78c1da60b3c62ccdd1509f0902ad19ceaf776b" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Wed Mar 28 23:30:14 2012 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Wed Mar 28 23:30:14 2012 +0200" }, "message": "PM / Hibernate: Disable usermode helpers right before freezing tasks\n\nThere is no reason to call usermodehelper_disable() before creating\nmemory bitmaps in hibernate() and software_resume(), so call it right\nbefore freeze_processes(), in accordance with the other suspend and\nhibernation code. Consequently, call usermodehelper_enable() right\nafter the thawing of tasks rather than after freeing the memory\nbitmaps.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Greg Kroah-Hartman \u003cgregkh@linuxfoundation.org\u003e\nCc: stable@vger.kernel.org\n" }, { "commit": "c7c66c0cb0c77b1a8edf09bca57d922312d58030", "tree": "77277103c5f16aa4dee64978a060933d92e14776", "parents": [ "9f3938346a5c1fa504647670edb5fea5756cfb00", "98e8bdafeb4728a6af7bbcbcc3984967d1cf2bc1" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Mar 21 10:15:51 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Mar 21 10:15:51 2012 -0700" }, "message": "Merge tag \u0027pm-for-3.4\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm\n\nPull power management updates for 3.4 from Rafael Wysocki:\n \"Assorted extensions and fixes including:\n\n * Introduction of early/late suspend/hibernation device callbacks.\n * Generic PM domains extensions and fixes.\n * devfreq updates from Axel Lin and MyungJoo Ham.\n * Device PM QoS updates.\n * Fixes of concurrency problems with wakeup sources.\n * System suspend and hibernation fixes.\"\n\n* tag \u0027pm-for-3.4\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (43 commits)\n PM / Domains: Check domain status during hibernation restore of devices\n PM / devfreq: add relation of recommended frequency.\n PM / shmobile: Make MTU2 driver use pm_genpd_dev_always_on()\n PM / shmobile: Make CMT driver use pm_genpd_dev_always_on()\n PM / shmobile: Make TMU driver use pm_genpd_dev_always_on()\n PM / Domains: Introduce \"always on\" device flag\n PM / Domains: Fix hibernation restore of devices, v2\n PM / Domains: Fix handling of wakeup devices during system resume\n sh_mmcif / PM: Use PM QoS latency constraint\n tmio_mmc / PM: Use PM QoS latency constraint\n PM / QoS: Make it possible to expose PM QoS latency constraints\n PM / Sleep: JBD and JBD2 missing set_freezable()\n PM / Domains: Fix include for PM_GENERIC_DOMAINS\u003dn case\n PM / Freezer: Remove references to TIF_FREEZE in comments\n PM / Sleep: Add more wakeup source initialization routines\n PM / Hibernate: Enable usermodehelpers in hibernate() error path\n PM / Sleep: Make __pm_stay_awake() delete wakeup source timers\n PM / Sleep: Fix race conditions related to wakeup source timer function\n PM / Sleep: Fix possible infinite loop during wakeup source destruction\n PM / Hibernate: print physical addresses consistently with other parts of kernel\n ...\n" }, { "commit": "0de9a1e28a0d005f42c8cc5456a246710133b9ab", "tree": "89914affb67e9884ab13e15eb9ce79bfe1a3a13c", "parents": [ "d762a50b5b1bb93e91cb3cd90b6ae133da98fe31" ], "author": { "name": "Cong Wang", "email": "amwang@redhat.com", "time": "Fri Nov 25 23:14:38 2011 +0800" }, "committer": { "name": "Cong Wang", "email": "xiyou.wangcong@gmail.com", "time": "Tue Mar 20 21:48:26 2012 +0800" }, "message": "power: remove the second argument of k[un]map_atomic()\n\nAcked-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nSigned-off-by: Cong Wang \u003camwang@redhat.com\u003e\n" }, { "commit": "ed819e3b964bba8bfae8e65d4d55a3f345f8da16", "tree": "345c6e010750627224ac8c64ad9be06692e5e273", "parents": [ "48ed00031681c373ff81e78fd248710fe4cddda0", "a9b542ee607a8afafa9447292394959fc84ea650" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun Mar 04 23:11:24 2012 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun Mar 04 23:11:24 2012 +0100" }, "message": "Merge branch \u0027pm-qos\u0027\n\n* pm-qos:\n PM / QoS: unconditionally build the feature\n PM / QoS: Simplify PM QoS expansion/merge\n" }, { "commit": "37f08be11be9a7d9351fb1b9b408259519a126f3", "tree": "7edf402614ae9f36a6e9226b380072cec969c847", "parents": [ "8671bbc1bd0442ef0eab27f7d56216431c490820" ], "author": { "name": "Marcos Paulo de Souza", "email": "marcos.mage@gmail.com", "time": "Tue Feb 21 23:57:47 2012 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun Mar 04 23:08:54 2012 +0100" }, "message": "PM / Freezer: Remove references to TIF_FREEZE in comments\n\nThis patch removes all the references in the code about the TIF_FREEZE\nflag removed by commit a3201227f803ad7fd43180c5195dbe5a2bf998aa\n\n freezer: make freezing() test freeze conditions in effect instead of TIF_FREEZE\n\nThere still are some references to TIF_FREEZE in\nDocumentation/power/freezing-of-tasks.txt, but it looks like that\ndocumentation needs more thorough work to reflect how the new\nfreezer works, and hence merely removing the references to TIF_FREEZE\nwon\u0027t really help. So I have not touched that part in this patch.\n\nSuggested-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nSigned-off-by: Marcos Paulo de Souza \u003cmarcos.mage@gmail.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "05b4877f6a4f1ba4952d1222213d262bf8c132b7", "tree": "7205a80a5919c1f389873c78740d504800fb60e5", "parents": [ "4782e1654bdbd30cf307da090b3c4f70157477cb" ], "author": { "name": "Srivatsa S. Bhat", "email": "srivatsa.bhat@linux.vnet.ibm.com", "time": "Fri Feb 17 23:39:51 2012 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun Mar 04 23:08:37 2012 +0100" }, "message": "PM / Hibernate: Enable usermodehelpers in hibernate() error path\n\nIf create_basic_memory_bitmaps() fails, usermodehelpers are not re-enabled\nbefore returning. Fix this. And while at it, reword the goto labels so that\nthey look more meaningful.\n\nSigned-off-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nCc: stable@vger.kernel.org\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "69f1d475cc80c55121852b3030873cdd407fd31c", "tree": "611724e6da5798cf103e4e03cfdf86e950eae9d8", "parents": [ "c48825251cf5950da9d618144c4db6c130e6c0cd" ], "author": { "name": "Bjorn Helgaas", "email": "bhelgaas@google.com", "time": "Tue Feb 14 22:20:52 2012 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Fri Feb 17 23:36:41 2012 +0100" }, "message": "PM / Hibernate: print physical addresses consistently with other parts of kernel\n\nPrint physical address info in a style consistent with the %pR style used\nelsewhere in the kernel.\n\nSigned-off-by: Bjorn Helgaas \u003cbhelgaas@google.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "bc25cf508942c56810d4fb623ef27b56ccef7783", "tree": "1a991dd6fc5fcbdc0ef3eebe4ef5291787dd6d30", "parents": [ "93e1ee43a72b11e1b50aab87046c131a836a4456" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Mon Feb 13 16:29:33 2012 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Fri Feb 17 23:36:23 2012 +0100" }, "message": "PM / Sleep: Drop suspend_stats_update()\n\nSince suspend_stats_update() is only called from pm_suspend(),\nmove its code directly into that function and remove the static\ninline definition from include/linux/suspend.h. Clean_up\npm_suspend() in the process.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\n" }, { "commit": "93e1ee43a72b11e1b50aab87046c131a836a4456", "tree": "86897d0bec41d2040f371d2bf2951f1f35bf727d", "parents": [ "55ae451918ec62e553f11b6118fec157f90c31c3" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Mon Feb 13 16:29:24 2012 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Fri Feb 17 23:36:10 2012 +0100" }, "message": "PM / Sleep: Make enter_state() in kernel/power/suspend.c static\n\nThe enter_state() function in kernel/power/suspend.c should be\nstatic and state_store() in kernel/power/suspend.c should call\npm_suspend() instead of it, so make that happen (which also reduces\ncode duplication related to suspend statistics).\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\n" }, { "commit": "55ae451918ec62e553f11b6118fec157f90c31c3", "tree": "4748944f384941623a3abc3634ae07ea4fe785d7", "parents": [ "6f585f750d792652f33b6e85b1ee205be4b5e572" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Mon Feb 13 16:29:14 2012 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Fri Feb 17 23:36:03 2012 +0100" }, "message": "PM / Sleep: Unify kerneldoc comments in kernel/power/suspend.c\n\nThe kerneldoc comments in kernel/power/suspend.c are not formatted\nin the same way and the quality of some of them is questionable.\nUnify the formatting and improve the contents.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\n" }, { "commit": "6f585f750d792652f33b6e85b1ee205be4b5e572", "tree": "cc4f8472cecc86e7c2102c3f97702024f42e6bb5", "parents": [ "6c83b4818dd65eb17e633b6b629a81da7bed90b3" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sat Feb 11 22:40:23 2012 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Mon Feb 13 16:26:13 2012 +0100" }, "message": "PM / Sleep: Remove unnecessary label from suspend_freeze_processes()\n\nThe Finish label in suspend_freeze_processes() is in fact unnecessary\nand makes the function look more complicated than it really is, so\nremove that label (along with a few empty lines).\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\n" }, { "commit": "6c83b4818dd65eb17e633b6b629a81da7bed90b3", "tree": "97eddcc6d07daf0ea1be84c57e7a687b3d406151", "parents": [ "7c95149b7f1f61201b12c73c4862a41bf2428961" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sat Feb 11 00:00:34 2012 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Mon Feb 13 16:26:05 2012 +0100" }, "message": "PM / Sleep: Do not check wakeup too often in try_to_freeze_tasks()\n\nUse the observation that it is more efficient to check the wakeup\nvariable once before the loop reporting tasks that were not\nfrozen in try_to_freeze_tasks() than to do that in every step of that\nloop.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "a9b542ee607a8afafa9447292394959fc84ea650", "tree": "cac94f0048dbf6475ab5dc2a3b803ab6a59d472a", "parents": [ "654b0c9627bc1b34cc21643afa8ac359c50db7d7" ], "author": { "name": "Jean Pihet", "email": "jean.pihet@newoldbits.com", "time": "Mon Feb 13 16:23:42 2012 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Mon Feb 13 16:23:42 2012 +0100" }, "message": "PM / QoS: unconditionally build the feature\n\nThe PM QoS feature originally didn\u0027t depend on CONFIG_PM, which was\nmistakenly changed by commit e8db0be1245de16a6cc6365506abc392c3c212d4\n\n PM QoS: Move and rename the implementation files\n\nLater, commit d020283dc694c9ec31b410f522252f7a8397e67d\n\n PM / QoS: CPU C-state breakage with PM Qos change\n\npartially fixed that by introducing a static inline definition of\npm_qos_request(), but that still didn\u0027t allow user space to use\nthe PM QoS interface if CONFIG_PM was unset (which had been possible\nbefore). For this reason, remove the dependency of PM QoS on\nCONFIG_PM to make it work (as intended) with CONFIG_PM unset.\n\n[rjw: Replaced the original changelog with a new one.]\n\nSigned-off-by: Jean Pihet \u003cj-pihet@ti.com\u003e\nReported-by: Venkatesh Pallipadi \u003cvenki@google.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "654b0c9627bc1b34cc21643afa8ac359c50db7d7", "tree": "f25069e2987e6d61793585adf969f42f9380afcd", "parents": [ "d031e1de2c5ba91e67ed83f6adf624543ab2b03d", "d020283dc694c9ec31b410f522252f7a8397e67d" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Mon Feb 13 16:20:07 2012 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Mon Feb 13 16:20:07 2012 +0100" }, "message": "Merge commit \u0027pm-fixes-for-3.3-rc3\u0027 into pm-qos\n\nNew material in the pm-qos branch depends on recent power management\nfixes.\n" }, { "commit": "a556d5b58345ccf51826b9ceac078072f830738b", "tree": "35b66f1c49cf6f5437811051965f45a14f1ee15f", "parents": [ "51d6ff7acd920379f54d0be4dbe844a46178a65f" ], "author": { "name": "Srivatsa S. Bhat", "email": "srivatsa.bhat@linux.vnet.ibm.com", "time": "Sat Feb 04 23:39:56 2012 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu Feb 09 23:56:01 2012 +0100" }, "message": "PM / Hibernate: Refactor and simplify freezer_test_done\n\nThe code related to \u0027freezer_test_done\u0027 is needlessly convoluted.\nRefactor the code and simplify the implementation.\n\nSigned-off-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "51d6ff7acd920379f54d0be4dbe844a46178a65f", "tree": "b016233eaf9dd4f1698ca6e8e649d1df905a48ec", "parents": [ "9045a05044268b075c13bb0284601b24959dc3c6" ], "author": { "name": "Srivatsa S. Bhat", "email": "srivatsa.bhat@linux.vnet.ibm.com", "time": "Sat Feb 04 22:26:38 2012 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu Feb 09 23:55:54 2012 +0100" }, "message": "PM / Hibernate: Thaw kernel threads in hibernation_snapshot() in error/test path\n\nIn the hibernation call path, the kernel threads are frozen inside\nhibernation_snapshot(). If we happen to encounter an error further down\nthe road or if we are exiting early due to a successful freezer test,\nthen thaw kernel threads before returning to the caller.\n\nSigned-off-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nAcked-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "8916e3702ec422b57cc549fbae3986106292100f", "tree": "476b8f1079e607518d8be5333abfd58ef53d792f", "parents": [ "3ed3c7b559f3cae7a5a92860a127ceb0cafd5a9c" ], "author": { "name": "Marcos Paulo de Souza", "email": "marcos.mage@gmail.com", "time": "Sat Feb 04 22:26:13 2012 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu Feb 09 23:55:43 2012 +0100" }, "message": "PM / Suspend: Avoid code duplication in suspend statistics update\n\nThe code\n if (error) {\n suspend_stats.fail++;\n dpm_save_failed_errno(error);\n } else\n suspend_stats.success++;\n\nAppears in the kernel/power/main.c and kernel/power/suspend.c.\n\nThis patch just creates a new function to avoid duplicated code.\n\nSuggested-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nSigned-off-by: Marcos Paulo de Souza \u003cmarcos.mage@gmail.com\u003e\nAcked-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "3ed3c7b559f3cae7a5a92860a127ceb0cafd5a9c", "tree": "c8ab8e608222f07edf46a42e6ec3cb27ac4ceaa0", "parents": [ "e470d06655e00749f6f9372e4fa4f20cea7ed7c5", "d020283dc694c9ec31b410f522252f7a8397e67d" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu Feb 09 23:54:09 2012 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu Feb 09 23:54:09 2012 +0100" }, "message": "Merge commit \u0027pm-fixes-for-3.3-rc3\u0027 into pm-sleep\n\nNew material in the pm-sleep branch depends on recent\npower management fixes.\n" }, { "commit": "379e0be812ab8a2a351e784b0c987788f5123090", "tree": "70f1e7ac57e198d0a94a89a65933da9a2ca35ccc", "parents": [ "fe9161db2e6053da21e4649d77bbefaf3030b11d" ], "author": { "name": "Srivatsa S. Bhat", "email": "srivatsa.bhat@linux.vnet.ibm.com", "time": "Fri Feb 03 22:22:41 2012 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sat Feb 04 22:23:05 2012 +0100" }, "message": "PM / Freezer: Thaw only kernel threads if freezing of kernel threads fails\n\nIf freezing of kernel threads fails, we are expected to automatically\nthaw tasks in the error recovery path. However, at times, we encounter\nsituations in which we would like the automatic error recovery path\nto thaw only the kernel threads, because we want to be able to do\nsome more cleanup before we thaw userspace. Something like:\n\nerror \u003d freeze_kernel_threads();\nif (error) {\n\t/* Do some cleanup */\n\n\t/* Only then thaw userspace tasks*/\n\tthaw_processes();\n}\n\nAn example of such a situation is where we freeze/thaw filesystems\nduring suspend/hibernation. There, if freezing of kernel threads\nfails, we would like to thaw the frozen filesystems before thawing\nthe userspace tasks.\n\nSo, modify freeze_kernel_threads() to thaw only kernel threads in\ncase of freezing failure. And change suspend_freeze_processes()\naccordingly. (At the same time, let us also get rid of the rather\ncryptic usage of the conditional operator (:?) in that function.)\n\n[rjw: In fact, this patch fixes a regression introduced during the\n 3.3 merge window, because without it thaw_processes() may be called\n before swsusp_free() in some situations and that may lead to massive\n memory allocation failures.]\n\nSigned-off-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nAcked-by: Tejun Heo \u003ctj@kernel.org\u003e\nAcked-by: Nigel Cunningham \u003cnigel@tuxonice.net\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "fe9161db2e6053da21e4649d77bbefaf3030b11d", "tree": "3f875f40201455571280eef7a0c9fdc3c98e346e", "parents": [ "62aa2b537c6f5957afd98e29f96897419ed5ebab" ], "author": { "name": "Srivatsa S. Bhat", "email": "srivatsa.bhat@linux.vnet.ibm.com", "time": "Wed Feb 01 22:16:36 2012 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Wed Feb 01 22:16:36 2012 +0100" }, "message": "PM / Hibernate: Thaw kernel threads in SNAPSHOT_CREATE_IMAGE ioctl path\n\nIn the SNAPSHOT_CREATE_IMAGE ioctl, if the call to hibernation_snapshot()\nfails, the frozen tasks are not thawed.\n\nAnd in the case of success, if we happen to exit due to a successful freezer\ntest, all tasks (including those of userspace) are thawed, whereas actually\nwe should have thawed only the kernel threads at that point. Fix both these\nissues.\n\nSigned-off-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nCc: stable@vger.kernel.org\n" }, { "commit": "d031e1de2c5ba91e67ed83f6adf624543ab2b03d", "tree": "2d8b2c052c920d1973e6b1e00cbd95502bd9c0e0", "parents": [ "0496c8ae366724a0a2136cec09a2e277e782c126" ], "author": { "name": "Alex Frid", "email": "afrid@nvidia.com", "time": "Sun Jan 29 20:39:25 2012 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun Jan 29 20:39:25 2012 +0100" }, "message": "PM / QoS: Simplify PM QoS expansion/merge\n\n - Replace class ID #define with enumeration\n - Loop through PM QoS objects during initialization (rather than\n initializing them one-by-one)\n\nSigned-off-by: Alex Frid \u003cafrid@nvidia.com\u003e\nReviewed-by: Antti Miettinen \u003camiettinen@nvidia.com\u003e\nReviewed-by: Diwakar Tundlam \u003cdtundlam@nvidia.com\u003e\nReviewed-by: Scott Williams \u003cscwilliams@nvidia.com\u003e\nReviewed-by: Yu-Huan Hsu \u003cyhsu@nvidia.com\u003e\nAcked-by: markgross \u003cmarkgross@thegnar.org\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "cf579dfb82550e34de7ccf3ef090d8b834ccd3a9", "tree": "764ed72670c18c86d3eb9650025c56d661a31315", "parents": [ "181e9bdef37bfcaa41f3ab6c948a2a0d60a268b5" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun Jan 29 20:38:29 2012 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun Jan 29 20:38:29 2012 +0100" }, "message": "PM / Sleep: Introduce \"late suspend\" and \"early resume\" of devices\n\nThe current device suspend/resume phases during system-wide power\ntransitions appear to be insufficient for some platforms that want\nto use the same callback routines for saving device states and\nrelated operations during runtime suspend/resume as well as during\nsystem suspend/resume. In principle, they could point their\n.suspend_noirq() and .resume_noirq() to the same callback routines\nas their .runtime_suspend() and .runtime_resume(), respectively,\nbut at least some of them require device interrupts to be enabled\nwhile the code in those routines is running.\n\nIt also makes sense to have device suspend-resume callbacks that will\nbe executed with runtime PM disabled and with device interrupts\nenabled in case someone needs to run some special code in that\ncontext during system-wide power transitions.\n\nApart from this, .suspend_noirq() and .resume_noirq() were introduced\nas a workaround for drivers using shared interrupts and failing to\nprevent their interrupt handlers from accessing suspended hardware.\nIt appears to be better not to use them for other porposes, or we may\nhave to deal with some serious confusion (which seems to be happening\nalready).\n\nFor the above reasons, introduce new device suspend/resume phases,\n\"late suspend\" and \"early resume\" (and analogously for hibernation)\nwhose callback will be executed with runtime PM disabled and with\ndevice interrupts enabled and whose callback pointers generally may\npoint to runtime suspend/resume routines.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nReviewed-by: Mark Brown \u003cbroonie@opensource.wolfsonmicro.com\u003e\nReviewed-by: Kevin Hilman \u003ckhilman@ti.com\u003e\n" }, { "commit": "181e9bdef37bfcaa41f3ab6c948a2a0d60a268b5", "tree": "66e69f83b63e8517a47e0eb0e7ae730d8a9a109b", "parents": [ "0a9626575400879d1d5e6bc8768188b938d7c501" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun Jan 29 20:35:52 2012 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun Jan 29 20:35:52 2012 +0100" }, "message": "PM / Hibernate: Fix s2disk regression related to freezing workqueues\n\nCommit 2aede851ddf08666f68ffc17be446420e9d2a056\n\n PM / Hibernate: Freeze kernel threads after preallocating memory\n\nintroduced a mechanism by which kernel threads were frozen after\nthe preallocation of hibernate image memory to avoid problems with\nfrozen kernel threads not responding to memory freeing requests.\nHowever, it overlooked the s2disk code path in which the\nSNAPSHOT_CREATE_IMAGE ioctl was run directly after SNAPSHOT_FREE,\nwhich caused freeze_workqueues_begin() to BUG(), because it saw\nthat worqueues had been already frozen.\n\nAlthough in principle this issue might be addressed by removing\nthe relevant BUG_ON() from freeze_workqueues_begin(), that would\nreintroduce the very problem that commit 2aede851ddf08666f68ffc17be4\nattempted to avoid into that particular code path. For this reason,\nto fix the issue at hand, introduce thaw_kernel_threads() and make\nthe SNAPSHOT_FREE ioctl execute it.\n\nSpecial thanks to Srivatsa S. Bhat for detailed analysis of the\nproblem.\n\nReported-and-tested-by: Jiri Slaby \u003cjslaby@suse.cz\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nCc: stable@kernel.org\n" }, { "commit": "160cb5a97daef0cb894685d84c9d4700bb7cccb4", "tree": "91b8fd151fad423572a686ee94295a84754c0347", "parents": [ "5eb6f9ad96967be4e0da55521a253e11b534bd3f" ], "author": { "name": "Namhyung Kim", "email": "namhyung.kim@lge.com", "time": "Thu Jan 19 23:23:10 2012 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu Jan 19 23:23:10 2012 +0100" }, "message": "PM / Hibernate: Correct additional pages number calculation\n\nThe struct bm_block is allocated by chain_alloc(),\nso it\u0027d better counting it in LINKED_PAGE_DATA_SIZE.\n\nSigned-off-by: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "ee34a37049114303011e154478c63b977bcff24c", "tree": "b33342752535473f07742206395049233579d12b", "parents": [ "a029db43986e23677498ab4d84bb61b05de83484" ], "author": { "name": "Barry Song", "email": "Baohua.Song@csr.com", "time": "Mon Jan 09 12:56:23 2012 +0800" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sat Jan 14 00:41:37 2012 +0100" }, "message": "PM / Hibernate: Drop the check of swap space size for compressed image\n\nFor compressed image, the space required is not known until\nwe finish compressing and writing all pages.\nThis patch drops the check, and if swap space is not enough\nfinally, system can still restore to normal after writing\nswap fails for compressed images.\n\nSigned-off-by: Barry Song \u003cBaohua.Song@csr.com\u003e\nAcked-by: Pavel Machek \u003cpavel@ucw.cz\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "c6968e73b90c2a2fb9a32d4bad249f8f70f70125", "tree": "67ec90fc8e187fcf316298dd9d514bbbbbc8f187", "parents": [ "c0a32fc5a2e470d0b02597b23ad79a317735253e" ], "author": { "name": "Stanislaw Gruszka", "email": "sgruszka@redhat.com", "time": "Tue Jan 10 15:07:31 2012 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jan 10 16:30:42 2012 -0800" }, "message": "PM/Hibernate: do not count debug pages as savable\n\nWhen debugging with CONFIG_DEBUG_PAGEALLOC and debug_guardpage_minorder \u003e\n0, we have lot of free pages that are not marked so. Snapshot code\naccount them as savable, what cause hibernate memory preallocation\nfailure.\n\nIt is pretty hard to make hibernate allocation succeed with\ndebug_guardpage_minorder\u003d1. This change at least make it possible when\nsystem has relatively big amount of RAM.\n\nSigned-off-by: Stanislaw Gruszka \u003csgruszka@redhat.com\u003e\nAcked-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nCc: Andrea Arcangeli \u003caarcange@redhat.com\u003e\nCc: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Mel Gorman \u003cmgorman@suse.de\u003e\nCc: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "eb59c505f8a5906ad2e053d14fab50eb8574fd6f", "tree": "c6e875adc12b481b916e847e8f80b8881a0fb02c", "parents": [ "1619ed8f60959829d070d8f39cd2f8ca0e7135ce", "c233523b3d392e530033a7587d7970dc62a02361" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Jan 08 13:10:57 2012 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Jan 08 13:10:57 2012 -0800" }, "message": "Merge branch \u0027pm-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm\n\n* \u0027pm-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (76 commits)\n PM / Hibernate: Implement compat_ioctl for /dev/snapshot\n PM / Freezer: fix return value of freezable_schedule_timeout_killable()\n PM / shmobile: Allow the A4R domain to be turned off at run time\n PM / input / touchscreen: Make st1232 use device PM QoS constraints\n PM / QoS: Introduce dev_pm_qos_add_ancestor_request()\n PM / shmobile: Remove the stay_on flag from SH7372\u0027s PM domains\n PM / shmobile: Don\u0027t include SH7372\u0027s INTCS in syscore suspend/resume\n PM / shmobile: Add support for the sh7372 A4S power domain / sleep mode\n PM: Drop generic_subsys_pm_ops\n PM / Sleep: Remove forward-only callbacks from AMBA bus type\n PM / Sleep: Remove forward-only callbacks from platform bus type\n PM: Run the driver callback directly if the subsystem one is not there\n PM / Sleep: Make pm_op() and pm_noirq_op() return callback pointers\n PM/Devfreq: Add Exynos4-bus device DVFS driver for Exynos4210/4212/4412.\n PM / Sleep: Merge internal functions in generic_ops.c\n PM / Sleep: Simplify generic system suspend callbacks\n PM / Hibernate: Remove deprecated hibernation snapshot ioctls\n PM / Sleep: Fix freezer failures due to racy usermodehelper_is_disabled()\n ARM: S3C64XX: Implement basic power domain support\n PM / shmobile: Use common always on power domain governor\n ...\n\nFix up trivial conflict in fs/xfs/xfs_buf.c due to removal of unused\nXBT_FORCE_SLEEP bit\n" }, { "commit": "c336078bf65c4d38caa9a4b8b7b7261c778e622c", "tree": "607e18f9f5e60ad370e7c0ed7c13c665af04b7e8", "parents": [ "90363ddf0a1a4dccfbb8d0c10b8f488bc7fa69f8" ], "author": { "name": "Ben Hutchings", "email": "ben@decadent.org.uk", "time": "Tue Dec 27 22:54:52 2011 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu Jan 05 00:05:55 2012 +0100" }, "message": "PM / Hibernate: Implement compat_ioctl for /dev/snapshot\n\nThis allows uswsusp built for i386 to run on an x86_64 kernel (tested\nwith Debian package version 1.0+20110509-2).\n\nReferences: http://bugs.debian.org/502816\nSigned-off-by: Ben Hutchings \u003cben@decadent.org.uk\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "ff01bb4832651c6d25ac509a06a10fcbd75c461c", "tree": "bbfdebd317db97d346df78293566f36e883b1be9", "parents": [ "94ea4158f1733e3b10cef067d535f504866e0c41" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Sep 16 02:31:11 2011 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Jan 03 22:54:07 2012 -0500" }, "message": "fs: move code out of buffer.c\n\nMove invalidate_bdev, block_sync_page into fs/block_dev.c. Export\nkill_bdev as well, so brd doesn\u0027t have to open code it. Reduce\nbuffer_head.h requirement accordingly.\n\nRemoved a rather large comment from invalidate_bdev, as it looked a bit\nobsolete to bother moving. The small comment replacing it says enough.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Al Viro \u003cviro@ZenIV.linux.org.uk\u003e\nCc: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "cf007e3526a785a95a738d5a8fba44f1f4fe33e0", "tree": "0b36d8a1568c4579e439dda5fa8e079723589769", "parents": [ "b298d289c79211508f11cb50749b0d1d54eb244a" ], "author": { "name": "Srivatsa S. Bhat", "email": "srivatsa.bhat@linux.vnet.ibm.com", "time": "Thu Dec 08 23:42:53 2011 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Fri Dec 09 23:37:07 2011 +0100" }, "message": "PM / Hibernate: Remove deprecated hibernation snapshot ioctls\n\nSeveral snapshot ioctls were marked for removal quite some time ago,\nsince they were deprecated. Remove them.\n\nSuggested-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nSigned-off-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "bcda53faf5814c0c6025a0bd47108adfcbe9f199", "tree": "a8768204a16b24436f33fac00c1bb4dcfb4fafd5", "parents": [ "9b6fc5dc879bc90f765db0e95eefcf123d0d06dd" ], "author": { "name": "Srivatsa S. Bhat", "email": "srivatsa.bhat@linux.vnet.ibm.com", "time": "Wed Dec 07 22:29:54 2011 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu Dec 08 23:22:29 2011 +0100" }, "message": "PM / Sleep: Replace mutex_[un]lock(\u0026pm_mutex) with [un]lock_system_sleep()\n\nUsing [un]lock_system_sleep() is safer than directly using mutex_[un]lock()\non \u0027pm_mutex\u0027, since the latter could lead to freezing failures. Hence convert\nall the present users of mutex_[un]lock(\u0026pm_mutex) to use these safe APIs\ninstead.\n\nSuggested-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nReviewed-by: Simon Horman \u003chorms@verge.net.au\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "e5b16746f0f2d6883c226af52d90904ce0f7eee8", "tree": "89aa15350ccdef11fec16be252850627167d7167", "parents": [ "2e8e89e392c62636ee33532358607baef2863173" ], "author": { "name": "Srivatsa S. Bhat", "email": "srivatsa.bhat@linux.vnet.ibm.com", "time": "Sat Dec 03 00:20:30 2011 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Tue Dec 06 22:13:44 2011 +0100" }, "message": "PM / Hibernate: Replace unintuitive \u0027if\u0027 condition in kernel/power/user.c with \u0027else\u0027\n\nIn the snapshot_ioctl() function, under SNAPSHOT_FREEZE, the code below\nfreeze_processes() is a bit unintuitive. Improve it by replacing the\nsecond \u0027if\u0027 condition with an \u0027else\u0027 clause.\n\nSigned-off-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "2e8e89e392c62636ee33532358607baef2863173", "tree": "d995a25c68eef57dea580b0f06ba8af76758775a", "parents": [ "0c6aebe31861c470c8cfbfdfdfd72d1369a6440b", "d310310cbff18ec385c6ab4d58f33b100192a96a" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Tue Dec 06 22:12:50 2011 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Tue Dec 06 22:12:50 2011 +0100" }, "message": "Merge branch \u0027pm-freezer\u0027 into pm-sleep\n\n* pm-freezer: (26 commits)\n Freezer / sunrpc / NFS: don\u0027t allow TASK_KILLABLE sleeps to block the freezer\n Freezer: fix more fallout from the thaw_process rename\n freezer: fix wait_event_freezable/__thaw_task races\n freezer: kill unused set_freezable_with_signal()\n dmatest: don\u0027t use set_freezable_with_signal()\n usb_storage: don\u0027t use set_freezable_with_signal()\n freezer: remove unused @sig_only from freeze_task()\n freezer: use lock_task_sighand() in fake_signal_wake_up()\n freezer: restructure __refrigerator()\n freezer: fix set_freezable[_with_signal]() race\n freezer: remove should_send_signal() and update frozen()\n freezer: remove now unused TIF_FREEZE\n freezer: make freezing() test freeze conditions in effect instead of TIF_FREEZE\n cgroup_freezer: prepare for removal of TIF_FREEZE\n freezer: clean up freeze_processes() failure path\n freezer: kill PF_FREEZING\n freezer: test freezable conditions while holding freezer_lock\n freezer: make freezing indicate freeze condition in effect\n freezer: use dedicated lock instead of task_lock() + memory barrier\n freezer: don\u0027t distinguish nosig tasks on thaw\n ...\n" }, { "commit": "48580ab8729865c81e148d59159fbe2aa7865511", "tree": "40fca721d04bb2ceef8a2e603ba529447cd0fe65", "parents": [ "97819a26224f019e73d88bb2fd4eb5a614860461" ], "author": { "name": "Srivatsa S. Bhat", "email": "srivatsa.bhat@linux.vnet.ibm.com", "time": "Thu Dec 01 22:33:20 2011 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Tue Dec 06 22:08:14 2011 +0100" }, "message": "PM / Hibernate: Remove deprecated hibernation test modes\n\nThe hibernation test modes \u0027test\u0027 and \u0027testproc\u0027 are deprecated, because\nthe \u0027pm_test\u0027 framework offers much more fine-grained control for debugging\nsuspend and hibernation related problems.\n\nSo, remove the deprecated \u0027test\u0027 and \u0027testproc\u0027 hibernation test modes.\n\nSuggested-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nSigned-off-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "97819a26224f019e73d88bb2fd4eb5a614860461", "tree": "d7bb2f83b2564d4f2bf111e2eb3bc1f4714b342e", "parents": [ "0118521cc7acb3ccbc1a01d6144ac32be9d56a4c" ], "author": { "name": "Srivatsa S. Bhat", "email": "srivatsa.bhat@linux.vnet.ibm.com", "time": "Thu Dec 01 22:33:10 2011 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Tue Dec 06 22:07:59 2011 +0100" }, "message": "PM / Hibernate: Thaw processes in SNAPSHOT_CREATE_IMAGE ioctl test path\n\nCommit 2aede851ddf08666f68ffc17be446420e9d2a056 (PM / Hibernate: Freeze\nkernel threads after preallocating memory) moved the freezing of kernel\nthreads to hibernation_snapshot() function.\n\nSo now, if the call to hibernation_snapshot() returns early due to a\nsuccessful hibernation test, the caller has to thaw processes to ensure\nthat the system gets back to its original state.\n\nBut in SNAPSHOT_CREATE_IMAGE hibernation ioctl, the caller does not thaw\nprocesses in case hibernation_snapshot() returned due to a successful\nfreezer test. Fix this issue. But note we still send the value of \u0027in_suspend\u0027\n(which is now 0) to userspace, because we are not in an error path per-se,\nand moreover, the value of in_suspend correctly depicts the situation here.\n\nSigned-off-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "0118521cc7acb3ccbc1a01d6144ac32be9d56a4c", "tree": "2345c7754856f34efc7ac8f1ced88febb99d25ff", "parents": [ "953a206393b1533ceb0e7d725cc5a8c8d7ed97dd" ], "author": { "name": "Srivatsa S. Bhat", "email": "srivatsa.bhat@linux.vnet.ibm.com", "time": "Thu Dec 01 22:32:43 2011 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Tue Dec 06 22:07:51 2011 +0100" }, "message": "PM / Hibernate: Enable usermodehelpers in software_resume() error path\n\nIn the software_resume() function defined in kernel/power/hibernate.c,\nif the call to create_basic_memory_bitmaps() fails, the usermodehelpers\nare not enabled (which had been disabled in the previous step). Fix it.\n\nSigned-off-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "953a206393b1533ceb0e7d725cc5a8c8d7ed97dd", "tree": "7eb6448987f474f287bd2fce66dd1fff6e2eec30", "parents": [ "64e94aafb6a5c4f419e9b8f93950914b5ac162a9" ], "author": { "name": "Srivatsa S. Bhat", "email": "srivatsa.bhat@linux.vnet.ibm.com", "time": "Tue Nov 22 23:20:31 2011 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Wed Nov 23 21:13:41 2011 +0100" }, "message": "PM / Hibernate: Refactor and simplify hibernation_snapshot() code\n\nThe goto statements in hibernation_snapshot() are a bit complex.\nRefactor the code to remove some of them, thereby simplifying the\nimplementation.\n\nSigned-off-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "341d4166175e9b7911444f5a33b1c9efb8f15c85", "tree": "d08eb36c5cf3253f165f315c5c435781fbf55299", "parents": [ "bb58dd5d1ffad6c2d21c69698ba766dad4ae54e6" ], "author": { "name": "Srivatsa S. Bhat", "email": "srivatsa.bhat@linux.vnet.ibm.com", "time": "Sat Nov 19 14:39:01 2011 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Wed Nov 23 21:13:07 2011 +0100" }, "message": "PM: Fix indentation and remove extraneous whitespaces in kernel/power/main.c\n\nLack of proper indentation of the goto statement decreases the readability\nof code significantly. In fact, this made me look twice at the code to check\nwhether it really does what it should be doing. Fix this.\n\nAnd in the same file, there are some extra whitespaces. Get rid of them too.\n\nSigned-off-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "986b11c3ee9e0eace25fe74a502205f7fe8c179b", "tree": "2271bc519eac458fd92799f5731e2ef604f69341", "parents": [ "bb58dd5d1ffad6c2d21c69698ba766dad4ae54e6", "24b7ead3fb0bae267c2ee50898eb4c13aedd1e9f" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Wed Nov 23 21:09:02 2011 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Wed Nov 23 21:09:02 2011 +0100" }, "message": "Merge branch \u0027pm-freezer\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc into pm-freezer\n\n* \u0027pm-freezer\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc: (24 commits)\n freezer: fix wait_event_freezable/__thaw_task races\n freezer: kill unused set_freezable_with_signal()\n dmatest: don\u0027t use set_freezable_with_signal()\n usb_storage: don\u0027t use set_freezable_with_signal()\n freezer: remove unused @sig_only from freeze_task()\n freezer: use lock_task_sighand() in fake_signal_wake_up()\n freezer: restructure __refrigerator()\n freezer: fix set_freezable[_with_signal]() race\n freezer: remove should_send_signal() and update frozen()\n freezer: remove now unused TIF_FREEZE\n freezer: make freezing() test freeze conditions in effect instead of TIF_FREEZE\n cgroup_freezer: prepare for removal of TIF_FREEZE\n freezer: clean up freeze_processes() failure path\n freezer: kill PF_FREEZING\n freezer: test freezable conditions while holding freezer_lock\n freezer: make freezing indicate freeze condition in effect\n freezer: use dedicated lock instead of task_lock() + memory barrier\n freezer: don\u0027t distinguish nosig tasks on thaw\n freezer: remove racy clear_freeze_flag() and set PF_NOFREEZE on dead tasks\n freezer: rename thaw_process() to __thaw_task() and simplify the implementation\n ...\n" }, { "commit": "bb58dd5d1ffad6c2d21c69698ba766dad4ae54e6", "tree": "aedde5149df5e3eb8c217b90540222ee507d5e9e", "parents": [ "f10cdea68b70bd85706baed0decab59618f9c353" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Tue Nov 22 23:08:10 2011 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Wed Nov 23 21:03:38 2011 +0100" }, "message": "PM / Hibernate: Do not leak memory in error/test code paths\n\nThe hibernation core code forgets to release memory preallocated\nfor hibernation if there\u0027s an error in its early stages or if test\nmodes causing hibernation_snapshot() to return early are used. This\ncauses the system to be hardly usable, because the amount of\npreallocated memory is usually huge. Fix this problem.\n\nReported-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\n" }, { "commit": "839e3407d90a810318d17c17ceb3d5928a910704", "tree": "9b75e8f69cadba5d33537698931cf637a22d423b", "parents": [ "37ad8aca94a1da2112a7c56151390914e80d1113" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Nov 21 12:32:26 2011 -0800" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Nov 21 12:32:26 2011 -0800" }, "message": "freezer: remove unused @sig_only from freeze_task()\n\nAfter \"freezer: make freezing() test freeze conditions in effect\ninstead of TIF_FREEZE\", freezing() returns authoritative answer on\nwhether the current task should freeze or not and freeze_task()\ndoesn\u0027t need or use @sig_only. Remove it.\n\nWhile at it, rewrite function comment for freeze_task() and rename\n@sig_only to @user_only in try_to_freeze_tasks().\n\nThis patch doesn\u0027t cause any functional change.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nAcked-by: Oleg Nesterov \u003coleg@redhat.com\u003e\n" }, { "commit": "a3201227f803ad7fd43180c5195dbe5a2bf998aa", "tree": "1845ba06346f8a8772fe1c90f8960bd1a430d05c", "parents": [ "22b4e111fa01a1147aa562ceaf18a752a928ef4e" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Nov 21 12:32:25 2011 -0800" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Nov 21 12:32:25 2011 -0800" }, "message": "freezer: make freezing() test freeze conditions in effect instead of TIF_FREEZE\n\nUsing TIF_FREEZE for freezing worked when there was only single\nfreezing condition (the PM one); however, now there is also the\ncgroup_freezer and single bit flag is getting clumsy.\nthaw_processes() is already testing whether cgroup freezing in in\neffect to avoid thawing tasks which were frozen by both PM and cgroup\nfreezers.\n\nThis is racy (nothing prevents race against cgroup freezing) and\nfragile. A much simpler way is to test actual freeze conditions from\nfreezing() - ie. directly test whether PM or cgroup freezing is in\neffect.\n\nThis patch adds variables to indicate whether and what type of\nfreezing conditions are in effect and reimplements freezing() such\nthat it directly tests whether any of the two freezing conditions is\nactive and the task should freeze. On fast path, freezing() is still\nvery cheap - it only tests system_freezing_cnt.\n\nThis makes the clumsy dancing aroung TIF_FREEZE unnecessary and\nfreeze/thaw operations more usual - updating state variables for the\nnew state and nudging target tasks so that they notice the new state\nand comply. As long as the nudging happens after state update, it\u0027s\nrace-free.\n\n* This allows use of freezing() in freeze_task(). Replace the open\n coded tests with freezing().\n\n* p !\u003d current test is added to warning printing conditions in\n try_to_freeze_tasks() failure path. This is necessary as freezing()\n is now true for the task which initiated freezing too.\n\n-v2: Oleg pointed out that re-freezing FROZEN cgroup could increment\n system_freezing_cnt. Fixed.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nAcked-by: Paul Menage \u003cpaul@paulmenage.org\u003e (for the cgroup portions)\n" }, { "commit": "22b4e111fa01a1147aa562ceaf18a752a928ef4e", "tree": "f4b29f532678c72edf99bb8df3ba64d526bc8a3c", "parents": [ "03afed8bc296fa70186ba832c1126228bb992465" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Nov 21 12:32:25 2011 -0800" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Nov 21 12:32:25 2011 -0800" }, "message": "cgroup_freezer: prepare for removal of TIF_FREEZE\n\nTIF_FREEZE will be removed soon and freezing() will directly test\nwhether any freezing condition is in effect. Make the following\nchanges in preparation.\n\n* Rename cgroup_freezing_or_frozen() to cgroup_freezing() and make it\n return bool.\n\n* Make cgroup_freezing() access task_freezer() under rcu read lock\n instead of task_lock(). This makes the state dereferencing racy\n against task moving to another cgroup; however, it was already racy\n without this change as -\u003estate dereference wasn\u0027t synchronized.\n This will be later dealt with using attach hooks.\n\n* freezer-\u003estate is now set before trying to push tasks into the\n target state.\n\n-v2: Oleg pointed out that freeze_change_state() was setting\n freeze-\u003estate incorrectly to CGROUP_FROZEN instead of\n CGROUP_FREEZING. Fixed.\n\n-v3: Matt pointed out that setting CGROUP_FROZEN used to always invoke\n try_to_freeze_cgroup() regardless of the current state. Patch\n updated such that the actual freeze/thaw operations are always\n performed on invocation. This shouldn\u0027t make any difference\n unless something is broken.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nAcked-by: Paul Menage \u003cpaul@paulmenage.org\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\n" }, { "commit": "03afed8bc296fa70186ba832c1126228bb992465", "tree": "96d0a6a9bffdcfc678d31f21caa88e43693bde94", "parents": [ "376fede80e74d98b49d1ba9ac18f23c9fd026ddd" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Nov 21 12:32:24 2011 -0800" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Nov 21 12:32:24 2011 -0800" }, "message": "freezer: clean up freeze_processes() failure path\n\nfreeze_processes() failure path is rather messy. Freezing is canceled\nfor workqueues and tasks which aren\u0027t frozen yet but frozen tasks are\nleft alone and should be thawed by the caller and of course some\ncallers (xen and kexec) didn\u0027t do it.\n\nThis patch updates __thaw_task() to handle cancelation correctly and\nmakes freeze_processes() and freeze_kernel_threads() call\nthaw_processes() on failure instead so that the system is fully thawed\non failure. Unnecessary [suspend_]thaw_processes() calls are removed\nfrom kernel/power/hibernate.c, suspend.c and user.c.\n\nWhile at it, restructure error checking if clause in suspend_prepare()\nto be less weird.\n\n-v2: Srivatsa spotted missing removal of suspend_thaw_processes() in\n suspend_prepare() and error in commit message. Updated.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nAcked-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\n" }, { "commit": "85f1d476653f52c97ca75466b2494e67c1cbd25d", "tree": "a1839143272cc4e6593e5d4c97e8a3c39aed08ff", "parents": [ "6907483b4e803a20f0b48cc9afa3817420ce61c5" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Nov 21 12:32:24 2011 -0800" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Nov 21 12:32:24 2011 -0800" }, "message": "freezer: test freezable conditions while holding freezer_lock\n\ntry_to_freeze_tasks() and thaw_processes() use freezable() and\nfrozen() as preliminary tests before initiating operations on a task.\nThese are done without any synchronization and hinder with\nsynchronization cleanup without any real performance benefits.\n\nIn try_to_freeze_tasks(), open code self test and move PF_NOFREEZE and\nfrozen() tests inside freezer_lock in freeze_task().\n\nthaw_processes() can simply drop freezable() test as frozen() test in\n__thaw_task() is enough.\n\nNote: This used to be a part of larger patch to fix set_freezable()\n race. Separated out to satisfy ordering among dependent fixes.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\n" }, { "commit": "6907483b4e803a20f0b48cc9afa3817420ce61c5", "tree": "9f4b7cbe59eae0c6f59d704e4f465d537c172479", "parents": [ "0c9af09262864a2744091ee94c98c4a8fd60c98b" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Nov 21 12:32:24 2011 -0800" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Nov 21 12:32:24 2011 -0800" }, "message": "freezer: make freezing indicate freeze condition in effect\n\nCurrently freezing (TIF_FREEZE) and frozen (PF_FROZEN) states are\ninterlocked - freezing is set to request freeze and when the task\nactually freezes, it clears freezing and sets frozen.\n\nThis interlocking makes things more complex than necessary - freezing\ndoesn\u0027t mean there\u0027s freezing condition in effect and frozen doesn\u0027t\nmatch the task actually entering and leaving frozen state (it\u0027s\ncleared by the thawing task).\n\nThis patch makes freezing indicate that freeze condition is in effect.\nA task enters and stays frozen if freezing. This makes PF_FROZEN\nmanipulation done only by the task itself and prevents wakeup from\n__thaw_task() leaking outside of refrigerator.\n\nThe only place which needs to tell freezing \u0026\u0026 !frozen is\ntry_to_freeze_task() to whine about tasks which don\u0027t enter frozen.\nIt\u0027s updated to test the condition explicitly.\n\nWith the change, frozen() state my linger after __thaw_task() until\nthe task wakes up and exits fridge. This can trigger BUG_ON() in\nupdate_if_frozen(). Work it around by testing freezing() \u0026\u0026 frozen()\ninstead of frozen().\n\n-v2: Oleg pointed out missing re-check of freezing() when trying to\n clear FROZEN and possible spurious BUG_ON() trigger in\n update_if_frozen(). Both fixed.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Paul Menage \u003cpaul@paulmenage.org\u003e\n" }, { "commit": "0c9af09262864a2744091ee94c98c4a8fd60c98b", "tree": "e7dacbb7f370e0d7c515ed743a2c5b5179a1de5e", "parents": [ "6cd8dedcdd8e8de01391a7cf25f0b2afeb24f8f4" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Nov 21 12:32:24 2011 -0800" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Nov 21 12:32:24 2011 -0800" }, "message": "freezer: use dedicated lock instead of task_lock() + memory barrier\n\nFreezer synchronization is needlessly complicated - it\u0027s by no means a\nhot path and the priority is staying unintrusive and safe. This patch\nmakes it simply use a dedicated lock instead of piggy-backing on\ntask_lock() and playing with memory barriers.\n\nOn the failure path of try_to_freeze_tasks(), locking is moved from it\nto cancel_freezing(). This makes the frozen() test racy but the race\nhere is a non-issue as the warning is printed for tasks which failed\nto enter frozen for 20 seconds and race on PF_FROZEN at the last\nmoment doesn\u0027t change anything.\n\nThis simplifies freezer implementation and eases further changes\nincluding some race fixes.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\n" }, { "commit": "6cd8dedcdd8e8de01391a7cf25f0b2afeb24f8f4", "tree": "2b4b5d40fb4c66ac73839f6a37fb2de4786efc38", "parents": [ "a585042f7b933539a0b6bc63650c2d49ffb2e55d" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Nov 21 12:32:23 2011 -0800" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Nov 21 12:32:23 2011 -0800" }, "message": "freezer: don\u0027t distinguish nosig tasks on thaw\n\nThere\u0027s no point in thawing nosig tasks before others. There\u0027s no\nordering requirement between the two groups on thaw, which the staged\nthawing can\u0027t guarantee anyway. Simplify thaw_processes() by removing\nthe distinction and collapsing thaw_tasks() into thaw_processes().\nThis will help further updates to freezer.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\n" }, { "commit": "a585042f7b933539a0b6bc63650c2d49ffb2e55d", "tree": "bb93d05050e04c4bcd53fdf535239e6312fb62e2", "parents": [ "a5be2d0d1a8746e7be5210e3d6b904455000443c" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Nov 21 12:32:23 2011 -0800" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Nov 21 12:32:23 2011 -0800" }, "message": "freezer: remove racy clear_freeze_flag() and set PF_NOFREEZE on dead tasks\n\nclear_freeze_flag() in exit_mm() is racy. Freezing can start\nafterwards. Remove it. Skipping freezer for exiting task will be\nproperly implemented later.\n\nAlso, freezable() was testing exit_state directly to make system\nfreezer ignore dead tasks. Let the exiting task set PF_NOFREEZE after\nentering TASK_DEAD instead.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\n" }, { "commit": "a5be2d0d1a8746e7be5210e3d6b904455000443c", "tree": "1dcfa2725057a73059a3f768f5f5f7825b5d56ef", "parents": [ "8a32c441c1609f80e55df75422324a1151208f40" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Nov 21 12:32:23 2011 -0800" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Nov 21 12:32:23 2011 -0800" }, "message": "freezer: rename thaw_process() to __thaw_task() and simplify the implementation\n\nthaw_process() now has only internal users - system and cgroup\nfreezers. Remove the unnecessary return value, rename, unexport and\ncollapse __thaw_process() into it. This will help further updates to\nthe freezer code.\n\n-v3: oom_kill grew a use of thaw_process() while this patch was\n pending. Convert it to use __thaw_task() for now. In the longer\n term, this should be handled by allowing tasks to die if killed\n even if it\u0027s frozen.\n\n-v2: minor style update as suggested by Matt.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: Matt Helsley \u003cmatthltc@us.ibm.com\u003e\n" }, { "commit": "501a708f18ef911328ffd39f39738b8a7862aa8e", "tree": "f3adbf5979f9e714291cec5c2a893edbca16ba26", "parents": [ "aa9a7b11821e883a7b93ecce190881e0ea48648b" ], "author": { "name": "Srivatsa S. Bhat", "email": "srivatsa.bhat@linux.vnet.ibm.com", "time": "Sat Nov 19 14:37:57 2011 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sat Nov 19 14:37:57 2011 +0100" }, "message": "PM / Suspend: Fix bug in suspend statistics update\n\nAfter commit 2a77c46de1e3dace73745015635ebbc648eca69c\n(PM / Suspend: Add statistics debugfs file for suspend to RAM)\na missing pair of braces inside the state_store() function causes even\ninvalid arguments to suspend to be wrongly treated as failed suspend\nattempts. Fix this.\n\n[rjw: Put the hash/subject of the buggy commit into the changelog.]\n\nSigned-off-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "aa9a7b11821e883a7b93ecce190881e0ea48648b", "tree": "b917fb563df2d27b95d6012afd9bf63237a7e3d5", "parents": [ "88995e809f8a8115f30db24696c9137aad93d570" ], "author": { "name": "Srivatsa S. Bhat", "email": "srivatsa.bhat@linux.vnet.ibm.com", "time": "Fri Nov 18 23:02:42 2011 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Fri Nov 18 23:02:42 2011 +0100" }, "message": "PM / Hibernate: Fix the early termination of test modes\n\nCommit 2aede851ddf08666f68ffc17be446420e9d2a056\n(PM / Hibernate: Freeze kernel threads after preallocating memory)\npostponed the freezing of kernel threads to after preallocating memory\nfor hibernation. But while doing that, the hibernation test TEST_FREEZER\nand the test mode HIBERNATION_TESTPROC were not moved accordingly.\n\nAs a result, when using these test modes, it only goes upto the freezing of\nuserspace and exits, when in fact it should go till the complete end of task\nfreezing stage, namely the freezing of kernel threads as well.\n\nSo, move these points of exit to appropriate places so that freezing of\nkernel threads is also tested while using these test harnesses.\n\nSigned-off-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "a6f05b97d1ba87326bd96f3da9fef994830d6994", "tree": "d3e4aa1f3d0691c45842b49338d2fce8e74a43e7", "parents": [ "94956eed14b4b16d401c8ad36d68df0608f968cb" ], "author": { "name": "Dominik Brodowski", "email": "linux@dominikbrodowski.net", "time": "Sun Nov 06 21:54:12 2011 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Mon Nov 07 23:02:24 2011 +0100" }, "message": "PM / QoS: Set cpu_dma_pm_qos-\u003ename\n\nSince commit 4a31a334, the name of this misc device is not initialized,\nwhich leads to a funny device named /dev/(null) being created and\n/proc/misc containing an entry with just a number but no name. The latter\nleads to complaints by cryptsetup, which caused me to investigate this\nmatter.\n\nSigned-off-by: Dominik Brodowski \u003clinux@dominikbrodowski.net\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "32aaeffbd4a7457bf2f7448b33b5946ff2a960eb", "tree": "faf7ad871d87176423ff9ed1d1ba4d9c688fc23f", "parents": [ "208bca0860406d16398145ddd950036a737c3c9d", "67b84999b1a8b1af5625b1eabe92146c5eb42932" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Nov 06 19:44:47 2011 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Nov 06 19:44:47 2011 -0800" }, "message": "Merge branch \u0027modsplit-Oct31_2011\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux\n\n* \u0027modsplit-Oct31_2011\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits)\n Revert \"tracing: Include module.h in define_trace.h\"\n irq: don\u0027t put module.h into irq.h for tracking irqgen modules.\n bluetooth: macroize two small inlines to avoid module.h\n ip_vs.h: fix implicit use of module_get/module_put from module.h\n nf_conntrack.h: fix up fallout from implicit moduleparam.h presence\n include: replace linux/module.h with \"struct module\" wherever possible\n include: convert various register fcns to macros to avoid include chaining\n crypto.h: remove unused crypto_tfm_alg_modname() inline\n uwb.h: fix implicit use of asm/page.h for PAGE_SIZE\n pm_runtime.h: explicitly requires notifier.h\n linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h\n miscdevice.h: fix up implicit use of lists and types\n stop_machine.h: fix implicit use of smp.h for smp_processor_id\n of: fix implicit use of errno.h in include/linux/of.h\n of_platform.h: delete needless include \u003clinux/module.h\u003e\n acpi: remove module.h include from platform/aclinux.h\n miscdevice.h: delete unnecessary inclusion of module.h\n device_cgroup.h: delete needless include \u003clinux/module.h\u003e\n net: sch_generic remove redundant use of \u003clinux/module.h\u003e\n net: inet_timewait_sock doesnt need \u003clinux/module.h\u003e\n ...\n\nFix up trivial conflicts (other header files, and removal of the ab3550 mfd driver) in\n - drivers/media/dvb/frontends/dibx000_common.c\n - drivers/media/video/{mt9m111.c,ov6650.c}\n - drivers/mfd/ab3550-core.c\n - include/linux/dmaengine.h\n" }, { "commit": "6513fd6972f725291ee8ce62c7a39fb8a6c7391e", "tree": "d5fd2722e3f1299f3b71b917fa1287e302f2df76", "parents": [ "a96d69d1b02c4a526bd8c07e0cb10c129025c88c" ], "author": { "name": "Guennadi Liakhovetski", "email": "g.liakhovetski@gmx.de", "time": "Thu Nov 03 10:12:36 2011 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Fri Nov 04 22:28:14 2011 +0100" }, "message": "PM / QoS: Remove redundant check\n\nRemove an \"if\" check, that repeats an equivalent one 6 lines above.\n\nSigned-off-by: Guennadi Liakhovetski \u003cg.liakhovetski@gmx.de\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "6e5fdeedca610df600aabc393c4b1f44b128fe49", "tree": "52a34c30bef1501f19c691a759b81b6f2603cd32", "parents": [ "bdfa97bf7263657b83bc5b68567a3a60dde84c5b" ], "author": { "name": "Paul Gortmaker", "email": "paul.gortmaker@windriver.com", "time": "Thu May 26 16:00:52 2011 -0400" }, "committer": { "name": "Paul Gortmaker", "email": "paul.gortmaker@windriver.com", "time": "Mon Oct 31 19:30:05 2011 -0400" }, "message": "kernel: Fix files explicitly needing EXPORT_SYMBOL infrastructure\n\nThese files were getting \u003clinux/module.h\u003e via an implicit non-obvious\npath, but we want to crush those out of existence since they cost\ntime during compiles of processing thousands of lines of headers\nfor no reason. Give them the lightweight header that just contains\nthe EXPORT_SYMBOL infrastructure.\n\nSigned-off-by: Paul Gortmaker \u003cpaul.gortmaker@windriver.com\u003e\n" }, { "commit": "74da1ff71350f3638c51613085f89c0865d7fe08", "tree": "b8904435ba280a9b70462303909e8d8408428986", "parents": [ "56d82e000cdfb51aa92241d4682302f78c35cd92" ], "author": { "name": "Paul Gortmaker", "email": "paul.gortmaker@windriver.com", "time": "Thu May 26 12:48:41 2011 -0400" }, "committer": { "name": "Paul Gortmaker", "email": "paul.gortmaker@windriver.com", "time": "Mon Oct 31 09:20:12 2011 -0400" }, "message": "kernel: fix several implicit usasges of kmod.h\n\nThese files were implicitly relying on \u003clinux/kmod.h\u003e coming in via\nmodule.h, as without it we get things like:\n\nkernel/power/suspend.c:100: error: implicit declaration of function ‘usermodehelper_disable’\nkernel/power/suspend.c:109: error: implicit declaration of function ‘usermodehelper_enable’\nkernel/power/user.c:254: error: implicit declaration of function ‘usermodehelper_disable’\nkernel/power/user.c:261: error: implicit declaration of function ‘usermodehelper_enable’\n\nkernel/sys.c:317: error: implicit declaration of function ‘usermodehelper_disable’\nkernel/sys.c:1816: error: implicit declaration of function ‘call_usermodehelper_setup’\nkernel/sys.c:1822: error: implicit declaration of function ‘call_usermodehelper_setfns’\nkernel/sys.c:1824: error: implicit declaration of function ‘call_usermodehelper_exec’\n\nSigned-off-by: Paul Gortmaker \u003cpaul.gortmaker@windriver.com\u003e\n" }, { "commit": "1fdb24e969110fafea36d3b393bea438f702c87f", "tree": "47a1dfef8a259e7922285315f8a02d31b4efe2f1", "parents": [ "f362f98e7c445643d27c610bb7a86b79727b592e", "531a6a941745e1e045dd2a6bd09e1dc01247a5f3" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Oct 28 12:02:27 2011 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Oct 28 12:02:27 2011 -0700" }, "message": "Merge branch \u0027devel-stable\u0027 of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm\n\n* \u0027devel-stable\u0027 of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: (178 commits)\n ARM: 7139/1: fix compilation with CONFIG_ARM_ATAG_DTB_COMPAT and large TEXT_OFFSET\n ARM: gic, local timers: use the request_percpu_irq() interface\n ARM: gic: consolidate PPI handling\n ARM: switch from NO_MACH_MEMORY_H to NEED_MACH_MEMORY_H\n ARM: mach-s5p64x0: remove mach/memory.h\n ARM: mach-s3c64xx: remove mach/memory.h\n ARM: plat-mxc: remove mach/memory.h\n ARM: mach-prima2: remove mach/memory.h\n ARM: mach-zynq: remove mach/memory.h\n ARM: mach-bcmring: remove mach/memory.h\n ARM: mach-davinci: remove mach/memory.h\n ARM: mach-pxa: remove mach/memory.h\n ARM: mach-ixp4xx: remove mach/memory.h\n ARM: mach-h720x: remove mach/memory.h\n ARM: mach-vt8500: remove mach/memory.h\n ARM: mach-s5pc100: remove mach/memory.h\n ARM: mach-tegra: remove mach/memory.h\n ARM: plat-tcc: remove mach/memory.h\n ARM: mach-mmp: remove mach/memory.h\n ARM: mach-cns3xxx: remove mach/memory.h\n ...\n\nFix up mostly pretty trivial conflicts in:\n - arch/arm/Kconfig\n - arch/arm/include/asm/localtimer.h\n - arch/arm/kernel/Makefile\n - arch/arm/mach-shmobile/board-ap4evb.c\n - arch/arm/mach-u300/core.c\n - arch/arm/mm/dma-mapping.c\n - arch/arm/mm/proc-v7.S\n - arch/arm/plat-omap/Kconfig\nlargely due to some CONFIG option renaming (ie CONFIG_PM_SLEEP -\u003e\nCONFIG_ARM_CPU_SUSPEND for the arm-specific suspend code etc) and\naddition of NEED_MACH_MEMORY_H next to HAVE_IDE.\n" }, { "commit": "081a9d043c983f161b78fdc4671324d1342b86bc", "tree": "4382d88e5705b18a95471af2a71319401c47744f", "parents": [ "d231ff1af70a2df43d809173cf8c94e9c3beb853" ], "author": { "name": "Bojan Smojver", "email": "bojan@rexursive.com", "time": "Thu Oct 13 23:58:07 2011 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun Oct 16 23:30:38 2011 +0200" }, "message": "PM / Hibernate: Improve performance of LZO/plain hibernation, checksum image\n\nUse threads for LZO compression/decompression on hibernate/thaw.\nImprove buffering on hibernate/thaw.\nCalculate/verify CRC32 of the image pages on hibernate/thaw.\n\nIn my testing, this improved write/read speed by a factor of about two.\n\nSigned-off-by: Bojan Smojver \u003cbojan@rexursive.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "d231ff1af70a2df43d809173cf8c94e9c3beb853", "tree": "fa6efbb106f36738032bd035e10f54936d3b683d", "parents": [ "27920651fe0d16a25632dc238e81b54f3a504869" ], "author": { "name": "Barry Song", "email": "Baohua.Song@csr.com", "time": "Tue Oct 11 23:29:18 2011 -0700" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun Oct 16 23:30:38 2011 +0200" }, "message": "PM / Hibernate: Do not initialize static and extern variables to 0\n\nStatic and extern variables in kernel/power/hibernate.c need not be\ninitialized to 0 explicitly, so remove those initializations.\n\n[rjw: Modified subject, added changelog.]\n\nSigned-off-by: Barry Song \u003cBaohua.Song@csr.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "f126f7334f72e2fd1b7a62bba20c488b86e6e7c4", "tree": "c56a286700df963245e56cb8caea3e96565b478b", "parents": [ "bf1c138e350155edb06709c7fbf0946f252b257c" ], "author": { "name": "Barry Song", "email": "baohua.song@csr.com", "time": "Mon Oct 10 23:38:41 2011 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun Oct 16 23:30:37 2011 +0200" }, "message": "PM / Hibernate: Add resumedelay kernel param in addition to resumewait\n\nPatch \"PM / Hibernate: Add resumewait param to support MMC-like\ndevices as resume file\" added the resumewait kernel command line\noption. The present patch adds resumedelay so that\nresumewait/delay were analogous to rootwait/delay.\n\n[rjw: Modified the subject and changelog slightly.]\n\nSigned-off-by: Barry Song \u003cbaohua.song@csr.com\u003e\nAcked-by: Pavel Machek \u003cpavel@ucw.cz\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" } ], "next": "6f8d7022a842809aeb24db1d15669198ef02c131" }