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| /Documentation/filesystems/ |
| D | vfs.rst | 22 are called from a process context. Filesystem locking is described in
70 taken from the inode data. The open() file method is then called so the
254 All methods are called without any locks being held, unless otherwise
256 only called from a process context (i.e. not from an interrupt handler
260 this method is called by alloc_inode() to allocate memory for
267 this method is called by destroy_inode() to release resources
273 this method is called by the VFS to mark an inode dirty.
276 this method is called when the VFS needs to write an inode to
281 called when the last access to the inode is dropped, with the
287 called regardless of the value of i_nlink)
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| D | locking.rst | 102 permission: no (may not block if called in rcu-walk mode)
178 free_inode: called from RCU callback
197 ->statfs() has s_umount (shared) when called by ustat(2) (native or
210 ->bdev_try_to_free_page is called from the ->releasepage handler of
297 ->write_begin(), ->write_end() and ->readpage() may be called from
312 If writepage is called for sync (wbc->sync_mode != WBC_SYNC_NONE) then
316 If writepage is called for memory cleansing (sync_mode ==
321 If the filesystem is not called for "sync" and it determines that it
327 If the filesystem is called for sync then it must wait on any
366 ->set_page_dirty() is called from various places in the kernel
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| D | porting.rst | 98 and ->readdir() are called without BKL now. Grab it on entry, drop upon return
150 ->setattr() is called without BKL now. Caller _always_ holds ->i_mutex, so
218 should be called on the inode to render it dead, and an appropriate error
245 * we are called from ->rename().
273 ->permission() is called without BKL now. Grab it on entry, drop upon
283 ->statfs() is now called without BKL held. BKL should have been
324 for ATTR_SIZE and must be called in the beginning of ->setattr unconditionally.
329 be used instead. It gets called whenever the inode is evicted, whether it has
333 (or after) ->evict_inode() is called.
335 ->drop_inode() returns int now; it's called on final iput() with
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| /Documentation/driver-api/usb/ |
| D | callbacks.rst | 18 Called to see if the driver is willing to manage a particular
22 Called when the interface is no longer accessible, usually
37 Called when the device is going to be suspended.
40 Called when the device is being resumed.
43 Called when the suspended device has been reset instead
49 Called when the device is about to be reset.
52 Called after the device has been reset
62 against other USB callbacks. All callbacks are called from a task
89 to the interface you are called for and endpoint 0 of the device. Device
104 If you are called due to a physical disconnection, all your URBs will be
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| D | writing_usb_driver.rst | 68 disconnect function pointers are called when a device that matches the
138 function is called. The :c:type:`usb_device` structure, interface number and
156 function is called with the device pointer. The driver needs to clean
162 that were passed to the USB subsystem will be called from a user program
163 trying to talk to the device. The first function called will be open, as
177 After the open function is called, the read and write functions are
178 called to receive and send data to the device. In the ``skel_write``
212 called when the urb is finished by the USB subsystem. The callback
213 function is called in interrupt context, so caution must be taken not to
250 talk to the device, the release function in the driver is called. In
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| /Documentation/core-api/ |
| D | debug-objects.rst | 70 This function is called whenever the initialization function of a real
71 object is called.
93 This function is called whenever the initialization function of a real
94 object which resides on the stack is called.
117 This function is called whenever the activation function of a real
118 object is called.
129 fixup_activate function is called if available. This is necessary to
142 This function is called whenever the deactivation function of a real
143 object is called.
155 This function is called to mark an object destroyed. This is useful to
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| /Documentation/ABI/testing/ |
| D | sysfs-class-regulator | 6 Some regulator directories will contain a field called
32 Some regulator directories will contain a field called
72 Each regulator directory will contain a field called
96 Some regulator directories will contain a field called
111 Some regulator directories will contain a field called
126 Some regulator directories will contain a field called
151 Some regulator directories will contain a field called
166 Some regulator directories will contain a field called
181 Some regulator directories will contain a field called
196 Some regulator directories will contain a field called
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| D | sysfs-devices-state_synced | 9 .sync_state() callback hasn't been called yet. A value of 1
10 means the .sync_state() callback has been called.
18 this only when the sync_state() callback has been called --
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| /Documentation/networking/ |
| D | strparser.rst | 20 In receive callback mode, the strparser is called from the data_ready
34 callbacks include a parse_msg function that is called to perform
36 that is called when a full message has been completed.
46 Called to initialize a stream parser. strp is a struct of type
50 are called by the stream parser (the callbacks are listed below).
69 strp_stop is called to completely stop stream parser operations.
70 This is called internally when the stream parser encounters an
71 error, and it is called from the upper layer to stop parsing
78 strp_done is called to release any resources held by the stream
79 parser instance. This must be called after the stream processor
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| /Documentation/scheduler/ |
| D | sched-stats.rst | 43 1) # of times sched_yield() was called
49 3) # of times schedule() was called
54 5) # of times try_to_wake_up() was called
55 6) # of times try_to_wake_up() was called to wake up the local cpu
78 1) # of times in this domain load_balance() was called when the
86 5) # of times in this domain pull_task() was called when the cpu
88 6) # of times in this domain pull_task() was called even though
90 7) # of times in this domain load_balance() was called but did
94 9) # of times in this domain load_balance() was called when the
102 13) # of times in this domain pull_task() was called when busy
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| /Documentation/filesystems/caching/ |
| D | backend-api.rst | 70 In CacheFS's case, this is called by put_super().
97 A sysfs directory called /sys/fs/fscache/<cachetag>/ is created if CONFIG_SYSFS
145 is backing. An object should retired when put_object() is called if it is
165 method is called to give the op CPU time, and the release method to get
190 appropriately by the backend and fscache_enqueue_retrieval() called to
236 cookie in a particular cache. fscache_object_init() should be called on
256 fscache_obtained_object() should be called once the object is in a
258 should also be called once a non-present object has been created.
260 If a lookup error occurs, fscache_object_lookup_error() should be called
268 This method is called to ask the cache to release any resources it was
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| D | netfs-api.rst | 178 This function will be called to check that a match found in the cache for
208 valid until after the I/O completion is called, two functions may be
215 be called in interrupt context and so may not sleep.
219 This is called by the cache to indicate that it is retaining in-memory
225 called, so the function need not be provided if this is sufficient.
231 This is called by FS-Cache to indicate that a backing store is being
462 (1) The mark_pages_cached() cookie operation will be called on that page.
481 data. fscache_readpages_cancel() may need to be called.
483 end_io_func() will be called in process context if the read is results in
484 an error, but it might be called in interrupt context if the read is
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| /Documentation/crypto/ |
| D | crypto_engine.rst | 39 * ``prepare_crypt_hardware``: Called once before any prepare functions are
40 called.
42 * ``unprepare_crypt_hardware``: Called once after all unprepare functions have
43 been called.
45 * ``prepare_cipher_request``/``prepare_hash_request``: Called before each
49 * ``unprepare_cipher_request``/``unprepare_hash_request``: Called after each
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| /Documentation/trace/ |
| D | ftrace-uses.rst | 27 kernel comes with risks. A callback can be called from any context
28 (normal, softirq, irq, and NMI). Callbacks can also be called just before
31 can be called outside the protective scope of RCU.
41 is used to tell ftrace what function should be called as the callback
70 The registered callback will start being called some time after the
71 register_ftrace_function() is called and before it returns. The exact time
72 that callbacks start being called is dependent upon architecture and scheduling
77 no longer being called by functions after the unregister_ftrace_function()
97 This is the instruction pointer of the function that called the
134 if a function that is called as a result of the callback's execution
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| /Documentation/userspace-api/media/v4l/ |
| D | vidioc-streamon.rst | 45 has been called. Output hardware is disabled and no video signal is
46 produced until ``VIDIOC_STREAMON`` has been called. The ioctl will
50 been called for both the capture and output stream types.
65 ``VIDIOC_STREAMOFF`` is called without ever having called
75 If ``VIDIOC_STREAMON`` is called when streaming is already in progress,
76 or if ``VIDIOC_STREAMOFF`` is called when streaming is already stopped,
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| /Documentation/driver-api/serial/ |
| D | tty.rst | 16 called. Do not re-use ldisc numbers as they are part of the userspace ABI
42 open() Called when the line discipline is attached to
53 close() This is called on a terminal when the line
58 hangup() Called when the tty line is hung up.
74 flush_buffer() (optional) May be called at any point between
78 set_termios() (optional) Called on termios structure changes.
80 current data is in the tty. Called under the
88 ioctl() (optional) Called when an ioctl is handed to the
92 compat_ioctl() (optional) Called when a 32 bit ioctl is handed
102 receive_buf() (optional) Called by the low-level driver to hand
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| /Documentation/driver-api/driver-model/ |
| D | binding.rst | 16 type in the system. When device_register is called for a device, it is
18 list of all drivers of that bus type. When driver_register is called
38 and the driver's probe callback is called. This gives the driver a
48 devclass_add_device is called to enumerate the device within the class
92 go to 0. When it does, the remove callback of the driver is called. It
97 iterated over, and the driver's remove callback is called for each
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| /Documentation/s390/ |
| D | driver-model.rst | 8 All devices which can be addressed by means of ccws are called 'CCW devices' -
132 This function is called by the device layer for each device the driver
147 This function is called by the device layer upon removal of the driver,
160 This function is called by the common I/O layer when the device is
174 set_offline: This function is called by the common I/O layer when the device is
189 This function is called by the common I/O layer for some state changes
224 before the driver is called, and is deregistered during set_offline() after the
225 driver has been called. Also, after registering / before deregistering, path
232 Parameters: dev - the device the handler is called for
239 The device driver is called from the common ccw_device layer and can retrieve
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| /Documentation/arm/samsung-s3c24xx/ |
| D | usb-host.rst | 59 that get called to enable over-current detection, and to
65 Called to enable or disable the power on the port.
68 Called to enable or disable the over-current monitoring.
79 ensure this is called correctly.
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| /Documentation/devicetree/bindings/watchdog/ |
| D | digicolor-wdt.txt | 3 The watchdog functionality in Conexant Digicolor SoCs relies on the so called
5 timer counters. The first timer (called "Timer A") is the only one that can be
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| /Documentation/vm/ |
| D | hugetlbfs_reserv.rst | 152 reservations is known. The routine hugetlb_acct_memory() is called to check
197 The helper routine vma_needs_reservation() is called to determine if a
209 is called. This routine takes two arguments related to reservations:
240 The routine vma_commit_reservation() is then called to adjust the reserve
251 be possible if hugetlb_reserve_pages was called for the same page in a shared
312 hugetlb_acct_memory(min_hpages) is called to reserve the specified number of
315 The routines hugepage_subpool_get/put_pages() are called when pages are
373 reservation map. Typically, these routines are not called directly. Rather,
374 a reservation map helper routine is called which calls one of these low level
385 1) region_chg() is called to examine the reserve map and determine how
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| /Documentation/locking/ |
| D | hwspinlock.rst | 24 remote M3 and/or C64x+ slave processors (by an IPC subsystem called Syslink).
50 Should be called from a process context (might sleep).
61 Should be called from a process context (might sleep).
76 Should be called from a process context (might sleep).
86 Should be called from a process context (might sleep).
162 This function shall be called only from an atomic context and the timeout
242 This function shall be called only from an atomic context.
252 Unlock a previously-locked hwspinlock. Always succeed, and can be called
362 * assign a specific hwspinlock id - this should be called early
400 To be called from the underlying platform-specific implementation, in
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| /Documentation/devicetree/bindings/rtc/ |
| D | rtc-cmos.txt | 11 called "Register B".
13 called "Regsiter A".
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| /Documentation/livepatch/ |
| D | cumulative-patches.rst | 13 An elegant solution comes with the feature called "Atomic Replace". It allows
14 creation of so called "Cumulative Patches". They include all wanted changes
93 enabled patches were called.
102 callback. It is called only when the livepatch is properly disabled.
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| /Documentation/security/tpm/ |
| D | tpm_event_log.rst | 40 The firmware provides so called final events configuration table to sort
42 EFI_TCG2_PROTOCOL.GetEventLog() gets called.
44 This introduces another problem: nothing guarantees that it is not called
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