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/kernel/power/
DKconfig7 Allow the system to enter sleep states in which main memory is
20 Turning OFF this setting is NOT recommended! If in doubt, say Y.
44 called "hibernation" in user interfaces. STD checkpoints the
49 in your bootloader's configuration file.
60 It creates an image which is saved in your active swap. Upon the next
71 Right now you may boot without resuming and resume later but in the
72 meantime you cannot use the swap partition(s)/file(s) involved in
73 suspending. Also in this case you must not use the filesystems
76 will get corrupted in a nasty way.
159 (autosuspended), and woken up in response to a hardware-generated
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/kernel/
Dkexec.c270 struct compat_kexec_segment in; in COMPAT_SYSCALL_DEFINE4() local
286 result = copy_from_user(&in, &segments[i], sizeof(in)); in COMPAT_SYSCALL_DEFINE4()
290 out.buf = compat_ptr(in.buf); in COMPAT_SYSCALL_DEFINE4()
291 out.bufsz = in.bufsz; in COMPAT_SYSCALL_DEFINE4()
292 out.mem = in.mem; in COMPAT_SYSCALL_DEFINE4()
293 out.memsz = in.memsz; in COMPAT_SYSCALL_DEFINE4()
DKconfig.preempt32 is in kernel mode executing a system call. This allows
45 all kernel code (that is not executing in a critical section)
48 even if it is in kernel mode executing a system call and would
55 embedded system with latency requirements in the milliseconds
Drelay.c1193 static ssize_t subbuf_splice_actor(struct file *in, in subbuf_splice_actor() argument
1201 struct rchan_buf *rbuf = in->private_data; in subbuf_splice_actor()
1285 static ssize_t relay_file_splice_read(struct file *in, in relay_file_splice_read() argument
1299 ret = subbuf_splice_actor(in, ppos, pipe, len, flags, &nonpad_ret); in relay_file_splice_read()
DKconfig.hz15 Note that the timer interrupt occurs on each processor in an SMP
Dfork.c2538 #error clone3 requires copy_thread_tls support in arch
/kernel/trace/
DKconfig156 small and not measurable even in micro-benchmarks.
199 This option measures the time spent in irqs-off critical
224 This option measures the time spent in preemption-off critical
245 to be scheduled in, starting from the point it has woken up.
253 spinning in a loop looking for interruptions caused by
259 Some files are created in the tracing directory when this
262 hwlat_detector/width - time in usecs for how long to spin for
263 hwlat_detector/window - time in usecs between the start of each
267 for "width" microseconds in every "window" cycle. It will not spin
271 The output will appear in the trace and trace_pipe files.
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/kernel/time/
DKconfig37 # Architecture can handle broadcast in a driver-agnostic way
108 the task mostly runs in userspace and has few kernel activity.
113 This is implemented at the expense of some overhead in user <-> kernel
131 other dependencies to provide in order to make the full
142 CPUs in the system.
148 don't want in production.
Ditimer.c314 struct compat_itimerval __user *, in, in COMPAT_SYSCALL_DEFINE3()
320 if (in) { in COMPAT_SYSCALL_DEFINE3()
321 if (get_compat_itimerval(&kin, in)) in COMPAT_SYSCALL_DEFINE3()
Dtimeconst.bc31 a shift value will be correct in the signed integer range and off
32 by at most one in the upper half of the unsigned range. */
/kernel/dma/
DKconfig98 int "Size in Mega Bytes"
103 Defines the size (in MiB) of the default memory area for Contiguous
115 Allocator as a percentage of the total memory in the system.
162 With this option you will be able to detect common bugs in device
167 accessed by the cpu in a way that could cause data corruption. For
185 This is particularly likely to have been overlooked in cases where the
/kernel/rcu/
DKconfig.debug61 int "RCU CPU stall timeout in seconds"
87 This option provides consistency checks in RCU's handling of
88 NO_HZ. These checks have proven quite helpful in detecting
89 bugs in arch-specific NO_HZ code.
DKconfig125 value to the maximum value possible in order to reduce the
196 callback invocation to energy-efficient CPUs in battery-powered
/kernel/gcov/
DKconfig23 For all files in one directory:
61 exceptions where format changes are integrated in lower-version GCCs.
62 In such a case, change this option to adjust the format used in the
/kernel/irq/
DKconfig30 # and should not be used in new code. Use irq domains instead.
123 out the interrupt descriptors in a more NUMA-friendly way. )
128 bool "Expose irq internals in debugfs"
/kernel/livepatch/
DKconfig20 to new function code contained in the patch module.
/kernel/debug/kdb/
Dkdb_cmds2 # These commands are executed in kdb_init() context, no SMP, no