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/Documentation/ABI/testing/
Dsysfs-class-bdi43 For example, this is useful for providing a minimum QoS.
57 expressed as part of 1 million. For example, this is useful for
67 given percentage of the write-back cache. This is useful in
81 of 1 million. This is useful in situations where we want to avoid
99 For example, this is useful for providing a minimum QoS.
108 given 'max_bytes' of the write-back cache. This is useful in
122 is useful in situations where the global limit is much higher than
Dsysfs-bus-vdpa20 This can be useful when /sys/bus/vdpa/drivers_autoprobe is
28 attempt to bind to the device. This is useful for overriding
36 attempt to unbind from the device. This may be useful when
Dsysfs-bus-i2c-devices-pca954x12 channel, which is useful when there is a device
19 which is useful if there is one channel that is
Dsysfs-bus-iio-dac6 is useful when one wants to change the DAC output codes. For
37 is useful when one wants to change the DAC output codes. For
Dgpio-cdev16 Currently the only useful flags are O_RDWR.
/Documentation/RCU/
Dlockdep.rst42 rcu_read_lock_held(). This is useful in code that is
46 rcu_read_lock_bh_held(). This is useful in code that
50 rcu_read_lock_sched_held(). This is useful in code that
54 srcu_read_lock_held(). This is useful in code that
62 and compiler constraints. This is useful when the data
68 or coalescing. This is useful when testing the
/Documentation/dev-tools/
Dclang-format.rst12 - Quickly reformat a block of code to the kernel style. Specially useful
18 - Help you follow the coding style rules, specially useful for those
59 Counting the lines of such a diff is also useful for improving/tweaking
91 useful when moving code around, for complex code that is deeply intended,
96 it can be very useful.
182 They are typically useful for block re-formatting, rather than full-file.
Dtesting-overview.rst71 of code. This is useful for determining how much of the kernel is being tested,
80 kernel to allow capturing coverage on a per-task level. It's therefore useful
82 for example, a single syscall is useful.
176 that's really useful. If you just created a Smatch warning and try to push the
/Documentation/admin-guide/media/
Ddvb_references.rst22 in both html and pdf formats, together with other useful documentation at:
26 You may also find useful material at https://linuxtv.org/downloads/.
/Documentation/ABI/stable/
Dsysfs-bus-mhi29 This can be useful as a method of recovery if the device is
43 This can be useful if user wants to use QDL (Qualcomm Download,
/Documentation/security/tpm/
Dtpm_event_log.rst21 it is useful is nicely put in the very first section of [1]:
25 therefore, attestation is typically more useful when the PCR contents
/Documentation/core-api/
Dtimekeeping.rst20 Useful for reliable timestamps and measuring short time intervals
49 This is rarely useful in the kernel.
124 reading the 'jiffies' variable. These are only useful when called
141 This is useful in some tracing or debugging code as well as
/Documentation/admin-guide/
Dclearing-warn-once.rst9 This can be useful after test suite runs to reproduce problems.
Djfs.rst55 block device when blocks are freed. This is useful for SSD
59 a TRIM command to the block device is considered useful.
Dsysrq.rst173 sak(k) (Secure Access Key) is useful when you want to be sure there is no
185 It seems others find it useful as (System Attention Key) which is
186 useful when you want to exit a program that will not let you switch consoles.
204 The loglevels ``0``-``9`` are useful when your console is being flooded with
209 ``term(e)`` and ``kill(i)`` are useful if you have some sort of runaway process
213 "just thaw ``it(j)``" is useful if your system becomes unresponsive due to a
216 ``Replay logs(R)`` is useful to view the kernel log messages when system is hung
/Documentation/filesystems/bcachefs/
DCodingStyle.rst97 The humble counter is an incredibly useful tool. They're cheap and simple to
157 will be useful, and make the big projects easier.
159 The question of what's likely to be useful is where junior developers most
160 often go astray - doing something because it seems like it'll be useful often
161 leads to overengineering. Knowing what's useful comes from many years of
/Documentation/userspace-api/media/v4l/
Dhsv-formats.rst13 useful format for image segmentation algorithms.
/Documentation/tools/rtla/
Dcommon_timerlat_description.rst4 the wakeup, they collect and generate useful information for the
/Documentation/devicetree/bindings/iio/imu/
Dst,lsm6dsx.yaml86 Disable sensor-hub is useful if i2c controller clock/data lines are
93 is useful if several sensors share the same interrupt line.
/Documentation/filesystems/ext4/
Dallocators.rst14 up file rewrites significantly. Therefore, it is useful to reduce
41 is useful to try to keep them all together.
/Documentation/networking/
Dipvs-sysctl.rst158 be useful, when user-space monitoring program deletes the
176 This may be useful, when a user makes a destination server
192 protocols like ipip, which is useful to prevent rescheduling
243 This is useful for normal connections with high traffic to reduce
250 Defines sync retries with period of sync_refresh_period/8. Useful
/Documentation/fb/
Ddeferred_io.rst7 IO. The following example may be a useful explanation of how one such setup
34 It may be the case that this is useful in other scenarios as well. Paul Mundt
/Documentation/misc-devices/
Dc2port.rst15 This program is distributed in the hope that it will be useful,
29 or EC3 debug adapter. This solution is also useful in those systems
/Documentation/locking/
Dlocktorture.rst83 This capability is useful for automated testing.
97 automatically at boot time, in which case it is useful
99 coming and going. This parameter is only useful if
Dspinlocks.rst57 (rw_lock) versions of the spinlocks are sometimes useful. They allow multiple
79 The above kind of lock may be useful for complex data structures like
118 This is useful if you know that the data in question is only ever

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