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/linux/kernel/bpf/
H A Dlocal_storage.c78 struct bpf_cgroup_storage *storage; in cgroup_storage_lookup() local
80 storage = container_of(node, struct bpf_cgroup_storage, node); in cgroup_storage_lookup()
82 switch (bpf_cgroup_storage_key_cmp(map, key, &storage->key)) { in cgroup_storage_lookup()
92 return storage; in cgroup_storage_lookup()
103 struct bpf_cgroup_storage *storage) in cgroup_storage_insert() argument
114 switch (bpf_cgroup_storage_key_cmp(map, &storage->key, &this->key)) { in cgroup_storage_insert()
126 rb_link_node(&storage->node, parent, new); in cgroup_storage_insert()
127 rb_insert_color(&storage->node, root); in cgroup_storage_insert()
135 struct bpf_cgroup_storage *storage; in cgroup_storage_lookup_elem() local
137 storage = cgroup_storage_lookup(map, key, false); in cgroup_storage_lookup_elem()
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H A Dbpf_local_storage.c297 * Unlink an selem from map and local storage with lock held.
346 * Unlink an selem from map and local storage with lockless fallback if callers
399 * Okay to skip clearing owner_storage and storage->owner in in bpf_selem_unlink_nofail()
417 * selem, no one will free the local storage. in bpf_selem_unlink_nofail()
480 struct bpf_local_storage *prev_storage, *storage; in bpf_local_storage_alloc() local
486 err = mem_charge(smap, owner, sizeof(*storage)); in bpf_local_storage_alloc()
490 storage = bpf_map_kmalloc_nolock(&smap->map, sizeof(*storage), in bpf_local_storage_alloc()
492 if (!storage) { in bpf_local_storage_alloc()
497 INIT_HLIST_HEAD(&storage->list); in bpf_local_storage_alloc()
498 raw_res_spin_lock_init(&storage->lock); in bpf_local_storage_alloc()
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/linux/tools/testing/selftests/bpf/progs/
H A Dlocal_storage.c65 struct local_storage *storage; in BPF_PROG()
78 storage = bpf_task_storage_get(&task_storage_map, task, 0, 0); in BPF_PROG()
79 if (!storage) in BPF_PROG()
83 is_self_unlink = storage->exec_inode == victim->d_inode; in BPF_PROG()
85 storage = bpf_task_storage_get(&task_storage_map2, task, 0, in BPF_PROG()
87 if (!storage || storage->value) in BPF_PROG()
106 struct local_storage *storage;
116 storage = bpf_inode_storage_get(&inode_storage_map, old_dentry->d_inode, in BPF_PROG()
118 if (!storage) in BPF_PROG()
66 struct local_storage *storage; BPF_PROG() local
112 struct local_storage *storage; BPF_PROG() local
142 struct local_storage *storage; BPF_PROG() local
188 struct local_storage *storage; BPF_PROG() local
211 struct local_storage *storage; BPF_PROG() local
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H A Dmptcp_sock.c31 struct mptcp_storage *storage; in _sockops() local
51 storage = bpf_sk_storage_get(&socket_storage_map, sk, 0, in _sockops()
53 if (!storage) in _sockops()
56 storage->token = 0; in _sockops()
57 __builtin_memset(storage->ca_name, 0, TCP_CA_NAME_MAX); in _sockops()
58 storage->first = NULL; in _sockops()
64 storage = bpf_sk_storage_get(&socket_storage_map, msk, 0, in _sockops()
66 if (!storage) in _sockops()
69 storage->token = msk->token; in _sockops()
70 __builtin_memcpy(storage->ca_name, msk->ca_name, TCP_CA_NAME_MAX); in _sockops()
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H A Dtcp_rtt.c28 struct tcp_rtt_storage *storage; in _sockops() local
37 storage = bpf_sk_storage_get(&socket_storage_map, sk, 0, in _sockops()
39 if (!storage) in _sockops()
54 storage->invoked++; in _sockops()
56 storage->dsack_dups = tcp_sk->dsack_dups; in _sockops()
57 storage->delivered = tcp_sk->delivered; in _sockops()
58 storage->delivered_ce = tcp_sk->delivered_ce; in _sockops()
59 storage->icsk_retransmits = tcp_sk->icsk_retransmits; in _sockops()
61 storage->mrtt_us = ctx->args[0]; in _sockops()
62 storage->srtt = ctx->args[1]; in _sockops()
H A Dsockopt_inherit.c56 struct sockopt_inherit *storage; in _getsockopt() local
65 storage = get_storage(ctx); in _getsockopt()
66 if (!storage) in _getsockopt()
67 return 0; /* EPERM, couldn't get sk storage */ in _getsockopt()
71 optval[0] = storage->val; in _getsockopt()
87 struct sockopt_inherit *storage; in _setsockopt() local
96 storage = get_storage(ctx); in _setsockopt()
97 if (!storage) in _setsockopt()
98 return 0; /* EPERM, couldn't get sk storage */ in _setsockopt()
100 storage->val = optval[0]; in _setsockopt()
H A Dverifier_cgroup_storage.c31 __description("valid cgroup storage access")
50 __description("invalid cgroup storage access 1")
70 __description("invalid cgroup storage access 2")
89 __description("invalid cgroup storage access 3")
109 __description("invalid cgroup storage access 4")
130 __description("invalid cgroup storage access 5")
150 __description("invalid cgroup storage access 6")
170 __description("valid per-cpu cgroup storage access")
189 __description("invalid per-cpu cgroup storage access 1")
209 __description("invalid per-cpu cgroup storage access 2")
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H A Dsockopt_sk.c34 struct sockopt_sk *storage; in _getsockopt() local
116 storage = bpf_sk_storage_get(&socket_storage_map, ctx->sk, 0, in _getsockopt()
118 if (!storage) in _getsockopt()
119 return 0; /* couldn't get sk storage */ in _getsockopt()
127 optval[0] = storage->val; in _getsockopt()
144 struct sockopt_sk *storage; in _setsockopt() local
235 storage = bpf_sk_storage_get(&socket_storage_map, ctx->sk, 0, in _setsockopt()
237 if (!storage) in _setsockopt()
238 return 0; /* couldn't get sk storage */ in _setsockopt()
240 storage->val = optval[0]; in _setsockopt()
/linux/Documentation/bpf/
H A Dmap_sk_storage.rst11 ``BPF_MAP_TYPE_SK_STORAGE`` is used to provide socket-local storage for BPF
12 programs. A map of type ``BPF_MAP_TYPE_SK_STORAGE`` declares the type of storage
14 storage. The values for maps of type ``BPF_MAP_TYPE_SK_STORAGE`` are stored
16 allocating storage for a socket when requested and for freeing the storage when
22 socket-local storage.
37 Socket-local storage for ``map`` can be retrieved from socket ``sk`` using the
39 flag is used then ``bpf_sk_storage_get()`` will create the storage for ``sk``
41 ``BPF_LOCAL_STORAGE_GET_F_CREATE`` to initialize the storage value, otherwise
42 it will be zero initialized. Returns a pointer to the storage on success, or
56 Socket-local storage for ``map`` can be deleted from socket ``sk`` using the
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H A Dmap_cgroup_storage.rst9 storage. It is only available with ``CONFIG_CGROUP_BPF``, and to programs that
11 storage is identified by the cgroup the program is attached to.
13 The map provide a local storage at the cgroup that the BPF program is attached
38 map will share the same storage. Otherwise, if the type is
42 To access the storage in a program, use ``bpf_get_local_storage``::
51 ``struct bpf_spin_lock`` to synchronize the storage. See
128 storage. The non-per-CPU will have the same memory region for each storage.
130 Prior to Linux 5.9, the lifetime of a storage is precisely per-attachment, and
133 multiple attach types, and each attach creates a fresh zeroed storage. The
134 storage is freed upon detach.
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H A Dmap_cgrp_storage.rst9 storage for cgroups. It is only available with ``CONFIG_CGROUPS``.
21 To access the storage in a program, use ``bpf_cgrp_storage_get``::
26 a new local storage will be created if one does not exist.
28 The local storage can be removed with ``bpf_cgrp_storage_delete``::
81 The old cgroup storage map ``BPF_MAP_TYPE_CGROUP_STORAGE`` has been marked as
91 (2). ``BPF_MAP_TYPE_CGRP_STORAGE`` supports local storage for more than one
95 (3). ``BPF_MAP_TYPE_CGROUP_STORAGE_DEPRECATED`` allocates local storage at attach time so
96 ``bpf_get_local_storage()`` always returns non-NULL local storage.
97 ``BPF_MAP_TYPE_CGRP_STORAGE`` allocates local storage at runtime so
98 it is possible that ``bpf_cgrp_storage_get()`` may return null local storage.
[all …]
/linux/kernel/
H A Dstacktrace.c20 * @entries: Pointer to storage array
21 * @nr_entries: Number of entries in the storage array
41 * @entries: Pointer to storage array
42 * @nr_entries: Number of entries in the storage array
105 * stack_trace_save - Save a stack trace into a storage array
106 * @store: Pointer to storage array
107 * @size: Size of the storage array
128 * stack_trace_save_tsk - Save a task stack trace into a storage array
130 * @store: Pointer to storage array
131 * @size: Size of the storage array
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/linux/Documentation/usb/
H A Dmass-storage.rst2 Mass Storage Gadget (MSG)
8 Mass Storage Gadget (or MSG) acts as a USB Mass Storage device,
10 multiple logical units (LUNs). Backing storage for each LUN is
27 relation to mass storage function (or MSF) and different gadgets
28 using it, and how it differs from File Storage Gadget (or FSG)
35 The mass storage gadget accepts the following mass storage specific
41 backing storage for each logical unit. There may be at most
45 *BEWARE* that if a file is used as a backing storage, it may not
75 true. This has been changed to better match File Storage Gadget
110 MS Windows mounts removable storage in “Removal optimised mode” by
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/linux/drivers/usb/storage/
H A Dunusual_devs.h3 * Driver for USB Mass Storage compliant devices
58 "SND1 Storage",
290 "USB Mass Storage Device",
308 * Generic Mass Storage (PROTOTYPE--Remember to change idVendor)
411 "875DC Storage",
420 "785EPX Storage",
622 "File-backed Storage Gadget",
745 "PEG Mass Storage",
752 "PEG Mass Storage",
759 "PEG Mass Storage",
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H A DMakefile3 # Makefile for the USB Mass Storage device drivers.
14 obj-$(CONFIG_USB_STORAGE) += usb-storage.o
16 usb-storage-y := scsiglue.o protocol.o transport.o usb.o
17 usb-storage-y += initializers.o sierra_ms.o option_ms.o
18 usb-storage-y += usual-tables.o
19 usb-storage-$(CONFIG_USB_STORAGE_DEBUG) += debug.o
/linux/tools/perf/util/
H A Dllvm.c105 struct symbol_lookup_storage *storage = disinfo; in symbol_lookup_callback() local
108 storage->branch_addr = value; in symbol_lookup_callback()
110 storage->pcrel_load_addr = value; in symbol_lookup_callback()
135 struct symbol_lookup_storage storage; in symbol__disassemble_llvm() local
152 disasm = LLVMCreateDisasm(triplet, &storage, /*tag_type=*/0, in symbol__disassemble_llvm()
163 features, &storage, in symbol__disassemble_llvm()
205 storage.branch_addr = 0; in symbol__disassemble_llvm()
206 storage.pcrel_load_addr = 0; in symbol__disassemble_llvm()
219 if (storage.branch_addr != 0) { in symbol__disassemble_llvm()
221 storage in symbol__disassemble_llvm()
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/linux/rust/kernel/
H A Dbitfield.rs42 //! // Convert to/from the backing storage type.
66 //! Signed integer storage types are not supported.
80 //! The macro generates the bitfield type, [`From`] and [`Into`] implementations for its storage
254 //! Bits of the storage type that are not part of any declared field are preserved by the setter
256 //! storage type.
280 //! Bitfield storage types are unsigned. Since field getter methods return a [`Bounded`] of the
281 //! storage type, fields are also unsigned by default.
295 $(#[$attr:meta])* $vis:vis struct $name:ident($storage:ty) { $($fields:tt)* }
299 $(#[$attr])* $vis $name $storage
301 $crate::bitfield!(@fields $vis $name $storage { $($fields)* });
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/linux/include/linux/
H A Drseq_types.h19 * struct rseq_event - Storage for rseq related event management
111 * struct rseq_data - Storage for all rseq related data
115 * @event: Storage for event management
116 * @ids: Storage for cached CPU ID and MM CID
117 * @slice: Storage for time slice extension data
141 * struct sched_mm_cid - Storage for per task MM CID data
154 * struct mm_cid_pcpu - Storage for per CPU MM_CID data
163 * struct mm_mm_cid - Storage for per MM CID data
164 * @pcpu: Per CPU storage for CIDs associated to a CPU
/linux/arch/powerpc/platforms/ps3/
H A DKconfig116 tristate "PS3 Disk Storage Driver"
120 Include support for the PS3 Disk Storage.
126 tristate "PS3 BD/DVD/CD-ROM Storage Driver"
130 Include support for the PS3 ROM Storage.
137 tristate "PS3 FLASH ROM Storage Driver"
141 Include support for the PS3 FLASH ROM Storage.
152 tristate "PS3 Video RAM Storage Driver"
156 storage or system swap.
/linux/tools/testing/selftests/kvm/s390/
H A Dtprot.c95 * guest: set storage key of page_store_prot to 1
96 * storage key of page_fetch_prot to 9 and enable
101 /* access key 0 matches any storage key -> RW */
103 /* access key matches storage key -> RW */
107 /* access key 0 matches any storage key -> RW */
109 /* access key matches storage key -> RW */
117 * guest: set storage key of page 0 to 9 and enable fetch protection
127 * host: enable storage protection override
129 /* mismatched keys, but override applies (storage key 9) -> RW */
133 /* mismatched keys, but override applies (storage key 9) -> RW */
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/linux/drivers/iio/dac/
H A Dad5446.h15 #define _AD5446_CHANNEL(bits, storage, _shift, ext) { \ argument
25 .storagebits = (storage), \
31 #define AD5446_CHANNEL(bits, storage, shift) \ argument
32 _AD5446_CHANNEL(bits, storage, shift, NULL)
34 #define AD5446_CHANNEL_POWERDOWN(bits, storage, shift) \ argument
35 _AD5446_CHANNEL(bits, storage, shift, ad5446_ext_info_powerdown)
/linux/arch/s390/include/asm/
H A Dnmi.h56 u64 se : 1; /* 16 storage error uncorrected */
57 u64 sc : 1; /* 17 storage error corrected */
58 u64 ke : 1; /* 18 storage-key error uncorrected */
59 u64 ds : 1; /* 19 storage degradation */
64 u64 fa : 1; /* 24 failing storage address validity */
71 u64 st : 1; /* 31 storage logical validity */
72 u64 ie : 1; /* 32 indirect storage error */
76 u64 gs : 1; /* 36 guarded storage registers validity */
/linux/Documentation/admin-guide/device-mapper/
H A Dswitch.rst18 Dell EqualLogic and some other iSCSI storage arrays use a distributed
19 frameless architecture. In this architecture, the storage group
20 consists of a number of distinct storage arrays ("members") each having
21 independent controllers, disk storage and network adapters. When a LUN
23 spreading are hidden from initiators connected to this storage system.
24 The storage group exposes a single target discovery portal, no matter
29 forwarding is invisible to the initiator. The storage layout is also
34 the storage group and initiators. In a multipathing configuration, it
38 robin algorithm to send I/O across all paths and let the storage array
/linux/arch/x86/include/asm/
H A Dcpu_device_id.h64 * @_data: Driver specific data or NULL. The internal storage
91 * @data: Driver specific data or NULL. The internal storage
104 * @data: Driver specific data or NULL. The internal storage
115 * @data: Driver specific data or NULL. The internal storage
129 * @data: Driver specific data or NULL. The internal storage
142 * @data: Driver specific data or NULL. The internal storage
153 * @data: Driver specific data or NULL. The internal storage
168 * @data: Driver specific data or NULL. The internal storage
181 * @data: Driver specific data or NULL. The internal storage
193 * @data: Driver specific data or NULL. The internal storage
/linux/kernel/sched/ext/
H A Dtypes.h135 * Number of u64 words of bits[] storage that covers @nr_cids regardless of base
145 * __SCX_CMASK_DEFINE - Define an on-stack cmask with explicit storage capacity
149 * @ALLOC_CIDS: storage capacity in cids, at least @NR_CIDS
151 * @NAME aliases zero-initialized storage with the active range set to
162 * SCX_CMASK_DEFINE - Define an on-stack cmask on tight storage
165 * @NR_CIDS: active range length, also storage capacity
167 * @NAME aliases zero-initialized storage with the active range and storage
179 * Storage is fixed at SCX_CID_SHARD_MAX_CPUS, active range framed by
181 * cmask claiming more bits than storage holds and subsequent cmask

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