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/linux/drivers/android/binder/
H A Dfreeze.rs28 /// The cookie of this freeze listener.
49 /// Under some scenarios, userspace may delete a freeze listener and immediately recreate it
60 /// Represents a notification that the freeze state has changed.
95 let freeze = freeze_entry.get_mut(); in do_work() localVariable
97 if freeze.num_cleared_duplicates > 0 { in do_work()
98 freeze.num_cleared_duplicates -= 1; in do_work()
105 if freeze.is_pending { in do_work()
108 if freeze.is_clearing { in do_work()
109 kernel::warn_on!(freeze.num_cleared_duplicates != 0); in do_work()
110 if freeze.num_pending_duplicates > 0 { in do_work()
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/linux/kernel/cgroup/
H A Dfreezer.c149 * Freeze or unfreeze the task by setting or clearing the JOBCTL_TRAP_FREEZE
152 static void cgroup_freeze_task(struct task_struct *task, bool freeze) in cgroup_freeze_task() argument
160 if (freeze) { in cgroup_freeze_task()
172 * Freeze or unfreeze all tasks in the given cgroup.
174 static void cgroup_do_freeze(struct cgroup *cgrp, bool freeze, u64 ts_nsec) in cgroup_do_freeze() argument
183 if (freeze) { in cgroup_do_freeze()
194 if (freeze) in cgroup_do_freeze()
195 TRACE_CGROUP_PATH(freeze, cgrp); in cgroup_do_freeze()
207 cgroup_freeze_task(task, freeze); in cgroup_do_freeze()
222 * Adjust the task state (freeze or unfreeze) and revisit the state of
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/linux/Documentation/devicetree/bindings/fpga/
H A Daltr,freeze-bridge-controller.yaml4 $id: http://devicetree.org/schemas/fpga/altr,freeze-bridge-controller.yaml#
7 title: Altera Freeze Bridge Controller
10 The Altera Freeze Bridge Controller manages one or more freeze bridges.
11 The controller can freeze/disable the bridges which prevents signal
24 const: altr,freeze-bridge-controller
38 compatible = "altr,freeze-bridge-controller";
/linux/tools/testing/selftests/cgroup/
H A Dtest_freezer.c48 * Freeze the given cgroup.
50 static int cg_freeze_nowait(const char *cgroup, bool freeze) in cg_freeze_nowait() argument
52 return cg_write(cgroup, "cgroup.freeze", freeze ? "1" : "0"); in cg_freeze_nowait()
89 * Freeze the given cgroup and wait for the inotify signal.
93 static int cg_freeze_wait(const char *cgroup, bool freeze) in cg_freeze_wait() argument
101 ret = cg_freeze_nowait(cgroup, freeze); in cg_freeze_wait()
111 ret = cg_check_frozen(cgroup, freeze); in cg_freeze_wait()
133 * running processes and freeze it. Then unfreeze it. Then it kills all
186 * Then it tries to freeze and unfreeze the whole tree.
255 * Freeze B. in test_cgfreezer_tree()
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/linux/include/linux/fs/
H A Dsuper.h33 * __sb_write_started - check if sb freeze level is held
35 * @level: the freeze level
37 * * > 0 - sb freeze level is held
38 * * 0 - sb freeze level is not held
73 * wanting to freeze the filesystem.
85 * Wake up possible waiters wanting to freeze the filesystem.
97 * waiters wanting to freeze the filesystem.
115 * Since freeze protection behaves as a lock, users have to preserve
116 * ordering of freeze protection and other filesystem locks. Generally,
117 * freeze protection should be the outermost lock. In particular, we have:
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H A Dsuper_types.h54 int freeze_kcount; /* How many kernel freeze requests? */
55 int freeze_ucount; /* How many userspace freeze requests? */
56 const void *freeze_owner; /* Owner of the freeze */
61 * enum freeze_holder - holder of the freeze
62 * @FREEZE_HOLDER_KERNEL: kernel wants to freeze or thaw filesystem
63 * @FREEZE_HOLDER_USERSPACE: userspace wants to freeze or thaw filesystem
64 * @FREEZE_MAY_NEST: whether nesting freeze and thaw requests is allowed
65 * @FREEZE_EXCL: a freeze that can only be undone by the owner
67 * Indicate who the owner of the freeze or thaw request is and whether
68 * the freeze needs to be exclusive or can nest.
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/linux/arch/powerpc/include/asm/
H A Dreg_fsl_emb.h51 #define PMLCA_FC 0x80000000 /* Freeze Counter */
52 #define PMLCA_FCS 0x40000000 /* Freeze in Supervisor */
53 #define PMLCA_FCU 0x20000000 /* Freeze in User */
54 #define PMLCA_FCM1 0x10000000 /* Freeze when PMM==1 */
55 #define PMLCA_FCM0 0x08000000 /* Freeze when PMM==0 */
57 #define PMLCA_FGCS1 0x00000002 /* Freeze in guest state */
58 #define PMLCA_FGCS0 0x00000001 /* Freeze in hypervisor state */
78 #define PMGC0_FAC 0x80000000 /* Freeze all Counters */
80 #define PMGC0_FCECE 0x20000000 /* Freeze countes on
/linux/tools/power/pm-graph/config/
H A Dfreeze-dev.cfg2 # Dev S2 (Freeze) test - includes src calls / kernel threads
9 # sudo ./sleepgraph.py -config config/freeze-dev.cfg
21 # e.g. standby, mem, freeze, disk (default: mem)
22 mode: freeze
26 output-dir: freeze-{hostname}-{date}-{time}-dev
42 # Command to execute in lieu of freeze (default: "")
43 # command: echo freeze > /sys/power/state
H A Dfreeze-callgraph.cfg2 # Full Callgraph for S2 (Freeze) test
9 # sudo ./sleepgraph.py -config config/freeze-callgraph.cfg
22 # e.g. standby, mem, freeze, disk (default: mem)
23 mode: freeze
27 output-dir: freeze-{hostname}-{date}-{time}-cg
43 # Command to execute in lieu of freeze (default: "")
44 # command: echo freeze > /sys/power/state
H A Dfreeze.cfg2 # Generic S2 (Freeze) test
9 # sudo ./sleepgraph.py -config config/freeze.cfg
21 # e.g. standby, mem, freeze, disk (default: mem)
22 mode: freeze
26 output-dir: freeze-{hostname}-{date}-{time}
42 # Command to execute in lieu of freeze (default: "")
43 # command: echo freeze > /sys/power/state
/linux/arch/powerpc/platforms/powermac/
H A Dsmp.c66 static void (*pmac_tb_freeze)(int freeze);
350 /* This is going to freeze the timeebase, we disable interrupts */ in smp_psurge_kick_cpu()
503 static void smp_core99_cypress_tb_freeze(int freeze) in smp_core99_cypress_tb_freeze() argument
519 data = (data & 0xf3) | (freeze ? 0x00 : 0x0c); in smp_core99_cypress_tb_freeze()
529 freeze ? "freeze" : "unfreeze", rc); in smp_core99_cypress_tb_freeze()
530 panic("Timebase freeze failed !\n"); in smp_core99_cypress_tb_freeze()
535 static void smp_core99_pulsar_tb_freeze(int freeze) in smp_core99_pulsar_tb_freeze() argument
548 data = (data & 0x88) | (freeze ? 0x11 : 0x22); in smp_core99_pulsar_tb_freeze()
557 freeze ? "freeze" : "unfreeze", rc); in smp_core99_pulsar_tb_freeze()
558 panic("Timebase freeze failed !\n"); in smp_core99_pulsar_tb_freeze()
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/linux/Documentation/driver-api/nvdimm/
H A Dsecurity.rst11 "unlock unit", "freeze lock", "secure erase", and "overwrite". A security_ops
30 freeze - freeze changing of security states.
83 6. Freeze
85 The freeze operation does not require any keys. The security config can be
/linux/kernel/liveupdate/
H A Dluo_file.c34 * - freeze(): A final pre-reboot opportunity to prepare the state for kexec.
37 * - unfreeze(): Undoes the actions of .freeze(), called if the live update
38 * is aborted after the freeze phase.
51 * 2. Freeze (Pre-Reboot): Just before the kexec, luo_file_freeze() is called.
52 * It iterates through all preserved files, calls their respective .freeze()
82 * 2. Freeze Failure: During the reboot() syscall, if any handler's .freeze()
129 * This handle is passed back to the handler's .freeze(),
154 * during the .freeze() callback before being serialized for the next kernel.
374 if (luo_file->fh->ops->freeze) { in luo_file_freeze_one()
382 err = luo_file->fh->ops->freeze(&args); in luo_file_freeze_one()
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/linux/arch/powerpc/sysdev/
H A Dfsl_rcpm.c284 static void rcpm_common_freeze_time_base(u32 *tben_reg, int freeze) in rcpm_common_freeze_time_base() argument
288 if (freeze) { in rcpm_common_freeze_time_base()
299 static void rcpm_v1_freeze_time_base(bool freeze) in rcpm_v1_freeze_time_base() argument
301 rcpm_common_freeze_time_base(&rcpm_v1_regs->ctbenr, freeze); in rcpm_v1_freeze_time_base()
304 static void rcpm_v2_freeze_time_base(bool freeze) in rcpm_v2_freeze_time_base() argument
306 rcpm_common_freeze_time_base(&rcpm_v2_regs->pctbenr, freeze); in rcpm_v2_freeze_time_base()
/linux/Documentation/power/
H A Dfreezing-of-tasks.rst48 that put the task to sleep (TASK_INTERRUPTIBLE) or freeze it (TASK_FROZEN) if
90 - freezes all tasks (including kernel threads) because we can't freeze
125 usually making them almost impossible to repair). We therefore freeze
150 "RJW:> Why we freeze tasks at all or why we freeze kernel threads?
160 So in practice, the 'at all' may become a 'why freeze kernel threads?' and
241 consequence, the freezer would not be able to freeze that task, leading to
254 /sys/power/pm_freeze_timeout controls how long it will cost at most to freeze
/linux/include/linux/
H A Dliveupdate.h28 * @serialized_data: The opaque u64 handle, preserve/prepare/freeze may update
52 * @freeze: Optional. Final actions just before kernel transition.
53 * @unfreeze: Optional. Undo freeze operations.
70 int (*freeze)(struct liveupdate_file_op_args *args); member
/linux/arch/sh/kernel/cpu/sh4/
H A Dperf_event.c67 * 0x24 Pipeline freeze by I-cache miss
68 * 0x25 Pipeline freeze by D-cache miss
69 * 0x27 Pipeline freeze by branch instruction
70 * 0x28 Pipeline freeze by CPU register
71 * 0x29 Pipeline freeze by FPU
/linux/drivers/ssb/
H A Dsprom.c107 struct ssb_freeze_context freeze; in ssb_attr_sprom_store() local
130 err = ssb_devices_freeze(bus, &freeze); in ssb_attr_sprom_store()
132 pr_err("SPROM write: Could not freeze all devices\n"); in ssb_attr_sprom_store()
136 err = ssb_devices_thaw(&freeze); in ssb_attr_sprom_store()
/linux/fs/
H A Dsuper.c1510 * fs_bdev_freeze - freeze owning filesystem of block device
1513 * Freeze the filesystem that owns this block device if it is still
1518 * unfrozen. Each block device can only freeze the filesystem once as we
1521 * Return: If the freeze was successful zero is returned. If the freeze
1555 * unfrozen. Each block device can only freeze the filesystem once as we
1562 * freeze or might be frozen from other block devices).
1597 .freeze = fs_bdev_freeze,
1939 /* This freeze already has a specific owner. */ in may_freeze()
1944 * going to take a reference count and mark the freeze as in may_freeze()
1987 * exclusive freeze. in may_unfreeze()
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/linux/drivers/android/
H A Dbinder.c1225 if (ref->freeze) { in binder_cleanup_ref_olocked()
1226 binder_dequeue_work(ref->proc, &ref->freeze->work); in binder_cleanup_ref_olocked()
1357 kfree(ref->freeze); in binder_free_ref()
3913 struct binder_ref_freeze *freeze; in binder_request_freeze_notification() local
3916 freeze = kzalloc(sizeof(*freeze), GFP_KERNEL); in binder_request_freeze_notification()
3917 if (!freeze) in binder_request_freeze_notification()
3925 kfree(freeze); in binder_request_freeze_notification()
3930 if (ref->freeze) { in binder_request_freeze_notification()
3935 kfree(freeze); in binder_request_freeze_notification()
3940 INIT_LIST_HEAD(&freeze->work.entry); in binder_request_freeze_notification()
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/linux/tools/power/pm-graph/
H A DMakefile41 $(INSTALL_DATA) config/freeze-callgraph.cfg $(DESTDIR)$(LIBDIR)/pm-graph/config
42 $(INSTALL_DATA) config/freeze.cfg $(DESTDIR)$(LIBDIR)/pm-graph/config
43 $(INSTALL_DATA) config/freeze-dev.cfg $(DESTDIR)$(LIBDIR)/pm-graph/config
H A DREADME129 ['freeze', 'mem', 'disk']
230 Mode to initiate for suspend e.g. mem, freeze, standby (default: mem).
306 Simple suspend/resume with basic timeline (mem/freeze/standby)
308 config/freeze.cfg
311 Dev mode suspend/resume with dev timeline (mem/freeze/standby)
313 config/freeze-dev.cfg
316 Simple suspend/resume with timeline and callgraph (mem/freeze/standby)
318 config/freeze-callgraph.cfg
352 # Suspend Mode: e.g. standby, mem, freeze, disk (def: mem)
614 modes : freeze mem
/linux/fs/xfs/scrub/
H A Dfscounters.c38 * While we /could/ freeze the filesystem and scramble around the AGs counting
137 /* This should always succeed, we have a kernel freeze */ in xchk_fsthaw()
147 * freeze levels to put userspace to sleep, and the third freeze level to
163 /* Try to grab a kernel freeze. */ in xchk_fscounters_freeze()
580 * frozen, we treat the discrepancy as a corruption because the freeze in xchk_fscounters()
582 * userspace to call us back having granted us freeze permission. in xchk_fscounters()
/linux/arch/powerpc/kvm/
H A Dbook3s_hv_interrupts.S117 mtspr SPRN_MMCR2, r3 /* freeze all counters using MMCR2 */
121 sldi r3, r3, 31 /* MMCR0_FC (freeze counters) bit */
123 mtspr SPRN_MMCR0, r3 /* freeze all counters, disable interrupts */
/linux/tools/testing/selftests/bpf/prog_tests/
H A Dmmap.c129 /* data_map freeze should fail due to R/W mmap() */ in test_mmap()
132 "data_map freeze succeeded: err=%d, errno=%d\n", err, errno)) in test_mmap()
173 /* data_map freeze should now succeed due to no R/W mapping */ in test_mmap()
175 if (CHECK(err, "freeze", "data_map freeze failed: err=%d, errno=%d\n", in test_mmap()

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