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/linux-6.8/Documentation/filesystems/nfs/
Dexporting.rst7 --------
10 point. Local applications have a reference-counted hold on suitable
16 server-reboot (among other things, though these tend to be the most
32 -------------
34 The dcache normally contains a proper prefix of any given filesystem
37 As normal access is by filename this prefix is created naturally and
42 filehandle fragment, there is no automatic creation of a path prefix
47 proper prefix. i.e that are not connected to the root.
48 2. The dcache must be prepared for a newly found (via ->lookup) directory
49 to already have a (non-connected) dentry, and must be able to move
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/linux-6.8/Documentation/netlink/
Dgenetlink.yaml1 # SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
3 ---
4 $id: http://kernel.org/schemas/netlink/genetlink-legacy.yaml#
5 $schema: https://json-schema.org/draft-07/schema
12 len-or-define:
14 pattern: ^[0-9A-Za-z_]+( - 1)?$
16 len-or-limit:
17 # literal int or limit based on fixed-width type e.g. u8-min, u16-max, etc.
19 pattern: ^[su](8|16|32|64)-(min|max)$
26 required: [ name, doc, attribute-sets, operations ]
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Dgenetlink-c.yaml1 # SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
3 ---
4 $id: http://kernel.org/schemas/netlink/genetlink-c.yaml#
5 $schema: https://json-schema.org/draft-07/schema
12 len-or-define:
14 pattern: ^[0-9A-Za-z_]+( - 1)?$
16 len-or-limit:
17 # literal int or limit based on fixed-width type e.g. u8-min, u16-max, etc.
19 pattern: ^[su](8|16|32|64)-(min|max)$
26 required: [ name, doc, attribute-sets, operations ]
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Dgenetlink-legacy.yaml1 # SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
3 ---
4 $id: http://kernel.org/schemas/netlink/genetlink-legacy.yaml#
5 $schema: https://json-schema.org/draft-07/schema
12 len-or-define:
14 pattern: ^[0-9A-Za-z_]+( - 1)?$
16 len-or-limit:
17 # literal int or limit based on fixed-width type e.g. u8-min, u16-max, etc.
19 pattern: ^[su](8|16|32|64)-(min|max)$
26 required: [ name, doc, attribute-sets, operations ]
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Dnetlink-raw.yaml1 # SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
3 ---
4 $id: http://kernel.org/schemas/netlink/netlink-raw.yaml#
5 $schema: https://json-schema.org/draft-07/schema
12 len-or-define:
14 pattern: ^[0-9A-Za-z_]+( - 1)?$
21 required: [ name, doc, attribute-sets, operations ]
31 enum: [ netlink-raw ] # Trim
32 # Start netlink-raw
34 description: Protocol number to use for netlink-raw
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/linux-6.8/tools/perf/trace/beauty/
Dopen_flags.c1 // SPDX-License-Identifier: LGPL-2.1
27 const char *prefix = "O_"; in open__scnprintf_flags() local
31 printed = scnprintf(bf, size, "%s%s", show_prefix ? prefix : "", "RDONLY"); in open__scnprintf_flags()
36 …printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? pre… in open__scnprintf_flags()
42 P_FLAG(ASYNC); in open__scnprintf_flags()
63 …printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? pre… in open__scnprintf_flags()
75 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); in open__scnprintf_flags()
82 int flags = arg->val; in syscall_arg__scnprintf_open_flags()
85 arg->mask |= 1 << (arg->idx + 1); /* Mask the mode parm */ in syscall_arg__scnprintf_open_flags()
87 return open__scnprintf_flags(flags, bf, size, arg->show_string_prefix); in syscall_arg__scnprintf_open_flags()
/linux-6.8/tools/testing/selftests/net/tcp_ao/
Dkey-management.c1 // SPDX-License-Identifier: GPL-2.0
23 err = add_vrf("ksft-vrf", test_vrf_tabid, test_vrf_ifindex, -1); in setup_vrfs()
27 err = link_set_up("ksft-vrf"); in setup_vrfs()
66 static int test_del_key(int sk, uint8_t sndid, uint8_t rcvid, bool async, in test_del_key() argument
76 del.prefix = DEFAULT_TEST_PREFIX; in test_del_key()
91 return -errno; in test_del_key()
93 if (async) in test_del_key()
100 return -EEXIST; in test_del_key()
101 if (err != -E2BIG) in test_del_key()
108 return -ENOTRECOVERABLE; in test_del_key()
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Dbench-lookups.c1 // SPDX-License-Identifier: GPL-2.0
34 for (j = i - 1; j > 0 && i > 0; j--) { in gen_test_ips()
36 i--; /* collision */ in gen_test_ips()
52 if (err && err != -EEXIST) in test_add_routes()
64 if (test_add_key(lsk, DEFAULT_TEST_PASSWORD, *p, -1, 100, 100)) in server_apply_keys()
106 nsec = (end.tv_sec - start.tv_sec) * NSEC_PER_SEC; in measure_call()
108 nsec += end.tv_nsec - start.tv_nsec; in measure_call()
110 nsec -= start.tv_nsec - end.tv_nsec; in measure_call()
112 if (st->nr == 0) { in measure_call()
113 st->min = st->max = nsec; in measure_call()
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Dsetsockopt-closed.c1 // SPDX-License-Identifier: GPL-2.0
32 if (info->member != tmp.member) { \ in test_vefify_ao_info()
34 tst, (size_t)info->member, (size_t)tmp.member); \ in test_vefify_ao_info()
38 if (info->set_current) in test_vefify_ao_info()
40 if (info->set_rnext) in test_vefify_ao_info()
42 if (info->set_counters) { in test_vefify_ao_info()
72 if (ret == -1) { in __setsockopt_checked()
138 -1, 0, 100, 100)) in prepare_defs()
149 del->sndid = 100; in prepare_defs()
150 del->rcvid = 100; in prepare_defs()
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/linux-6.8/fs/
Dfs_context.c1 // SPDX-License-Identifier: GPL-2.0-or-later
51 { "async", SB_SYNCHRONOUS },
67 fc->sb_flags |= token; in vfs_parse_sb_flag()
68 fc->sb_flags_mask |= token; in vfs_parse_sb_flag()
74 fc->sb_flags &= ~token; in vfs_parse_sb_flag()
75 fc->sb_flags_mask |= token; in vfs_parse_sb_flag()
79 return -ENOPARAM; in vfs_parse_sb_flag()
83 * vfs_parse_fs_param_source - Handle setting "source" via parameter
90 * Returns 0 on success, -ENOPARAM if this is not "source" parameter, and
91 * -EINVAL otherwise. In the event of failure, supplementary error information
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/linux-6.8/Documentation/driver-api/usb/
Dpower-management.rst1 .. _usb-power-management:
7 :Date: Last-updated: February 2014
11 ---------
17 * Changing the default idle-delay time
31 -------------------------
35 component is ``suspended`` it is in a nonfunctional low-power state; it
37 ``resumed`` (returned to a functional full-power state) when the kernel
67 ----------------------
85 --------------------------
101 -------------------
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/linux-6.8/Documentation/driver-api/firmware/
Dfallback-mechanisms.rst97 important to re-iterate that no device is created if a direct filesystem lookup
113 -----------------------
114 .. kernel-doc:: drivers/base/firmware_loader/fallback.c
153 * ASYNC=whether or not the API request was asynchronous
171 in non-traditional paths -- paths outside of the listing documented in the
184 the uevent flag means you want to opt-in for the firmware fallback mechanism
196 The logic behind using MAX_JIFFY_OFFSET for non-uevents is that a custom
212 the peripheral's Linux device-driver needs to access this firmware.
222 .. kernel-doc:: include/linux/efi_embedded_fw.h
225 The EFI embedded-fw code works by scanning all EFI_BOOT_SERVICES_CODE memory
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/linux-6.8/net/ipv4/
Dtcp_ao.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * INET An implementation of the TCP Authentication Option (TCP-AO).
28 if (crypto_ahash_setkey(crypto_ahash_reqtfm(hp->req), in tcp_ao_calc_traffic_key()
29 mkt->key, mkt->keylen)) in tcp_ao_calc_traffic_key()
32 ret = crypto_ahash_init(hp->req); in tcp_ao_calc_traffic_key()
37 ahash_request_set_crypt(hp->req, &sg, key, len); in tcp_ao_calc_traffic_key()
38 crypto_ahash_update(hp->req); in tcp_ao_calc_traffic_key()
40 ret = crypto_ahash_final(hp->req); in tcp_ao_calc_traffic_key()
59 * >> A TCP-AO implementation MUST default to ignore incoming ICMPv4 in tcp_ao_ignore_icmp()
60 * messages of Type 3 (destination unreachable), Codes 2-4 (protocol in tcp_ao_ignore_icmp()
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/linux-6.8/tools/net/ynl/lib/
Dnlspec.py1 # SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
37 self.ident_name = self.name.replace('-', '_')
119 value_start = self.yaml.get('value-start', 0)
163 sub-message type
165 is_auto_scalar bool, attr is a variable-size scalar
173 self.is_multi = yaml.get('multi-attr', False)
175 self.sub_type = yaml.get('sub-type')
176 self.byte_order = yaml.get('byte-order')
178 self.display_hint = yaml.get('display-hint')
179 self.sub_message = yaml.get('sub-message')
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/linux-6.8/tools/net/ynl/
Dynl-gen-c.py2 # SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
17 return name.upper().replace('-', '_')
21 return name.lower().replace('-', '_')
26 Turn a string limit like u32-max or s64-min into its numerical value
28 if name[0] == 'u' and name.endswith('-min'):
30 width = int(name[1:-4])
32 width -= 1
33 value = (1 << width) - 1
34 if name[0] == 's' and name.endswith('-min'):
35 value = -value - 1
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/linux-6.8/drivers/android/
Dbinder.c1 // SPDX-License-Identifier: GPL-2.0-only
6 * Copyright (C) 2007-2008 Google, Inc.
15 * 1) proc->outer_lock : protects binder_ref
18 * 2) node->lock : protects most fields of binder_node.
21 * 3) proc->inner_lock : protects the thread and node lists
22 * (proc->threads, proc->waiting_threads, proc->nodes)
24 * (proc->todo, thread->todo, proc->delivered_death and
25 * node->async_todo), as well as thread->transaction_stack
35 * foo_olocked() : requires node->outer_lock
36 * foo_nlocked() : requires node->lock
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/linux-6.8/mm/
Dinternal.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
14 #include <linux/tracepoint-defs.h>
62 #define FOLIO_PAGES_MAPPED (ENTIRELY_MAPPED - 1)
76 return atomic_read(&folio->_nr_pages_mapped) & FOLIO_PAGES_MAPPED; in folio_nr_pages_mapped()
81 unsigned long mapping = (unsigned long)folio->mapping; in folio_raw_mapping()
91 int nr_throttled = atomic_read(&pgdat->nr_writeback_throttled); in acct_reclaim_writeback()
101 wqh = &pgdat->reclaim_wait[VMSCAN_THROTTLE_ISOLATED]; in wake_throttle_isolated()
129 DEFINE_READAHEAD(ractl, file, &file->f_ra, mapping, index); in force_page_cache_readahead()
146 * folio_evictable - Test whether a folio is evictable.
149 * Test whether @folio is evictable -- i.e., should be placed on
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/linux-6.8/sound/soc/
Dsoc-dapm.c1 // SPDX-License-Identifier: GPL-2.0+
3 // soc-dapm.c -- ALSA SoC Dynamic Audio Power Management
12 // o Platform power domain - can support external components i.e. amps and
15 // o Jack insertion power event initiation - e.g. hp insertion will enable
22 #include <linux/async.h>
42 #define DAPM_UPDATE_STAT(widget, val) widget->dapm->card->dapm_stats.val++;
67 /* dapm power sequences - make this per codec in the future */
152 if (snd_soc_card_is_instantiated(dapm->card)) in dapm_assert_locked()
185 return !list_empty(&w->dirty); in dapm_dirty_widget()
190 dapm_assert_locked(w->dapm); in dapm_mark_dirty()
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/linux-6.8/drivers/scsi/
Dscsi_scan.c1 // SPDX-License-Identifier: GPL-2.0
23 * If target is SCSI-3 or up, issue a REPORT LUN, and scan
36 #include <linux/async.h>
63 * Prefix values for the SCSI id's (stored in sysfs name field)
92 "last scsi LUN (should be between 1 and 2^64-1)");
95 #define SCSI_SCAN_TYPE_DEFAULT "async"
104 MODULE_PARM_DESC(scan, "sync, async, manual, or none. "
126 * scsi_enable_async_suspend - Enable async suspend and resume
131 * If a user has disabled async probing a likely reason is due to a in scsi_enable_async_suspend()
132 * storage enclosure that does not inject staggered spin-ups. For in scsi_enable_async_suspend()
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/linux-6.8/drivers/net/ethernet/intel/iavf/
Diavf_common.c1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 2013 - 2018 Intel Corporation. */
11 * iavf_aq_str - convert AQ err code to a string
66 snprintf(hw->err_str, sizeof(hw->err_str), "%d", aq_err); in iavf_aq_str()
67 return hw->err_str; in iavf_aq_str()
71 * iavf_stat_str - convert status err code to a string
214 snprintf(hw->err_str, sizeof(hw->err_str), "%d", stat_err); in iavf_stat_str()
215 return hw->err_str; in iavf_stat_str()
234 if ((!(mask & hw->debug_mask)) || !desc) in iavf_debug_aq()
239 le16_to_cpu(aq_desc->opcode), in iavf_debug_aq()
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/linux-6.8/Documentation/filesystems/
Dvfs.rst1 .. SPDX-License-Identifier: GPL-2.0
9 - Copyright (C) 1999 Richard Gooch
10 - Copyright (C) 2005 Pekka Enberg
27 ------------------------------
32 cache or dcache). This provides a very fast look-up mechanism to
44 ----------------
64 ---------------
67 structure (this is the kernel-side implementation of file descriptors).
88 .. code-block:: c
99 ->mount() will be attached to the mountpoint, so that when pathname
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/linux-6.8/drivers/tty/ipwireless/
Dhardware.c1 // SPDX-License-Identifier: GPL-2.0
13 * Copyright (C) 2006-2007 Jiri Kosina
60 timing_stats.read_time += (jiffies - start_time); in end_read_timing()
67 timing_stats.write_time += (jiffies - start_time); in end_write_timing()
74 unsigned long since = jiffies - timing_stats.last_report_time; in report_timing()
83 ": %u us elapsed - read %lu bytes in %u us, wrote %lu bytes in %u us\n", in report_timing()
163 #define HW_VERSION_UNKNOWN -1
258 * a non-zero serial number (indicating the new firmware). Thereafter,
259 * the driver can safely ignore the Timer Recovery re-sends to avoid
260 * out-of-sync problems.
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/linux-6.8/drivers/s390/scsi/
Dzfcp_fsf.c1 // SPDX-License-Identifier: GPL-2.0
35 …"Shuts down FCP devices for FCP channels that report a bit-error count in excess of its threshold …
40 struct zfcp_adapter *adapter = fsf_req->adapter; in zfcp_fsf_request_timeout_handler()
50 fsf_req->timer.function = zfcp_fsf_request_timeout_handler; in zfcp_fsf_start_timer()
51 fsf_req->timer.expires = jiffies + timeout; in zfcp_fsf_start_timer()
52 add_timer(&fsf_req->timer); in zfcp_fsf_start_timer()
57 BUG_ON(!fsf_req->erp_action); in zfcp_fsf_start_erp_timer()
58 fsf_req->timer.function = zfcp_erp_timeout_handler; in zfcp_fsf_start_erp_timer()
59 fsf_req->timer.expires = jiffies + 30 * HZ; in zfcp_fsf_start_erp_timer()
60 add_timer(&fsf_req->timer); in zfcp_fsf_start_erp_timer()
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/linux-6.8/drivers/s390/block/
Ddasd_eckd.h1 /* SPDX-License-Identifier: GPL-2.0 */
67 * Perform Subsystem Function / Sub-Orders
100 * Out-of-space (OOS) Codes
120 * Size that is reported for large volumes in the old 16-bit no_cyl field
181 unsigned long ep_sys_time; /* Ext Parameter - System Time Stamp */
233 /* Prefix data for format 0x00 and 0x01 */
255 unsigned char async:1; member
357 __u8 res2[4]; /* byte 4- 7 */
360 __u8 res3[22]; /* byte 10-31 */
370 __u8 res2[4]; /* byte 4- 7 */
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/linux-6.8/tools/power/pm-graph/
Dsleepgraph.py2 # SPDX-License-Identifier: GPL-2.0-only
21 # https://01.org/pm-graph
23 # git@github.com:intel/pm-graph
51 # ----------------- LIBRARIES --------------------
73 print('[%09.3f] %s' % (time.time()-mystarttime, msg))
81 # ----------------- CLASSES --------------------
85 # A global, single-instance container used to
107 cgtest = -1
147 prefix = 'test' variable in SystemValues
182 tmstart = 'SUSPEND START %Y%m%d-%H:%M:%S.%f'
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