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linux/kernel/bpf
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Andrii Nakryiko f4b4eee616 bpf: add support for fixed-size memory pointer returns for kfuncs 
Support direct fixed-size (and for now, read-only) memory access when
kfunc's return type is a pointer to non-struct type. Calculate type size
and let BPF program access that many bytes directly. This is crucial for
numbers iterator.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20230302235015.2044271-13-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-03-04 11:14:32 -08:00
..
preload
bpf: iterators: Split iterators.lskel.h into little- and big- endian versions
2023-01-28 12:45:15 -08:00
arraymap.c
bpf: Do btf_record_free outside map_free callback
2022-11-17 19:11:31 -08:00
bloom_filter.c
treewide: use get_random_u32() when possible
2022-10-11 17:42:58 -06:00
bpf_cgrp_storage.c
bpf: Fix a compilation failure with clang lto build
2022-11-30 17:13:25 -08:00
bpf_inode_storage.c
bpf: Fix a compilation failure with clang lto build
2022-11-30 17:13:25 -08:00
bpf_iter.c
bpf: Initialize the bpf_run_ctx in bpf_iter_run_prog()
2022-08-18 17:06:13 -07:00
bpf_local_storage.c
bpf: Use separate RCU callbacks for freeing selem
2023-03-03 09:45:27 -08:00
bpf_lru_list.c
bpf_lru_list: Read double-checked variable once without lock
2021-02-10 15:54:26 -08:00
bpf_lru_list.h
printk: stop including cache.h from printk.h
2022-05-13 07:20:07 -07:00
bpf_lsm.c
bpf: Fix the kernel crash caused by bpf_setsockopt().
2023-01-26 23:26:40 -08:00
bpf_struct_ops_types.h
bpf: Add dummy BPF STRUCT_OPS for test purpose
2021-11-01 14:10:00 -07:00
bpf_struct_ops.c
mm: Introduce set_memory_rox()
2022-12-15 10:37:26 -08:00
bpf_task_storage.c
bpf: Fix a compilation failure with clang lto build
2022-11-30 17:13:25 -08:00
btf.c
bpf: Refactor RCU enforcement in the verifier.
2023-03-03 17:42:20 +01:00
cgroup_iter.c
bpf: Pin the start cgroup in cgroup_iter_seq_init()
2022-11-21 17:40:42 +01:00
cgroup.c
bpf: allow ctx writes using BPF_ST_MEM instruction
2023-03-03 21:41:46 -08:00
core.c
Networking changes for 6.3.
2023-02-21 18:24:12 -08:00
cpumap.c
net: skbuff: drop the word head from skb cache
2023-02-10 09:10:28 +00:00
cpumask.c
bpf: Refactor RCU enforcement in the verifier.
2023-03-03 17:42:20 +01:00
devmap.c
bpf: devmap: check XDP features in __xdp_enqueue routine
2023-02-02 20:48:24 -08:00
disasm.c
bpf: Relicense disassembler as GPL-2.0-only OR BSD-2-Clause
2021-09-02 14:49:23 +02:00
disasm.h
bpf: Relicense disassembler as GPL-2.0-only OR BSD-2-Clause
2021-09-02 14:49:23 +02:00
dispatcher.c
bpf: Synchronize dispatcher update with bpf_dispatcher_xdp_func
2022-12-14 12:02:14 -08:00
hashtab.c
bpf: Support kptrs in percpu hashmap and percpu LRU hashmap
2023-03-01 10:24:33 -08:00
helpers.c
bpf: Introduce kptr_rcu.
2023-03-03 17:42:20 +01:00
inode.c
fs: port inode_init_owner() to mnt_idmap
2023-01-19 09:24:28 +01:00
Kconfig
rcu: Make the TASKS_RCU Kconfig option be selected
2022-04-20 16:52:58 -07:00
link_iter.c
bpf: Add bpf_link iterator
2022-05-10 11:20:45 -07:00
local_storage.c
bpf: Consolidate spin_lock, timer management into btf_record
2022-11-03 22:19:40 -07:00
lpm_trie.c
bpf: Use bpf_map_area_alloc consistently on bpf map creation
2022-08-10 11:50:43 -07:00
Makefile
bpf: Enable cpumasks to be queried and used as kptrs
2023-01-25 07:57:49 -08:00
map_in_map.c
bpf: Add comments for map BTF matching requirement for bpf_list_head
2022-11-17 19:22:14 -08:00
map_in_map.h
bpf: Add map_meta_equal map ops
2020-08-28 15:41:30 +02:00
map_iter.c
bpf: Introduce MEM_RDONLY flag
2021-12-18 13:27:41 -08:00
memalloc.c
bpf: Zeroing allocated object from slab in bpf memory allocator
2023-02-15 15:40:06 -08:00
mmap_unlock_work.h
bpf: Introduce helper bpf_find_vma
2021-11-07 11:54:51 -08:00
net_namespace.c
net: Add includes masked by netdevice.h including uapi/bpf.h
2021-12-29 20:03:05 -08:00
offload.c
bpf: Drop always true do_idr_lock parameter to bpf_map_free_id
2023-02-02 20:26:12 -08:00
percpu_freelist.c
bpf: Initialize same number of free nodes for each pcpu_freelist
2022-11-11 12:05:14 -08:00
percpu_freelist.h
bpf: Use raw_spin_trylock() for pcpu_freelist_push/pop in NMI
2020-10-06 00:04:11 +02:00
prog_iter.c
…
queue_stack_maps.c
bpf: Remove unneeded memset in queue_stack_map creation
2022-08-10 11:48:22 -07:00
reuseport_array.c
net: Fix suspicious RCU usage in bpf_sk_reuseport_detach()
2022-08-17 16:42:59 -07:00
ringbuf.c
bpf: Rename MEM_ALLOC to MEM_RINGBUF
2022-11-14 21:52:45 -08:00
stackmap.c
perf/bpf: Always use perf callchains if exist
2022-09-13 15:03:22 +02:00
syscall.c
bpf: Support kptrs in local storage maps
2023-03-01 10:24:33 -08:00
sysfs_btf.c
bpf: Load and verify kernel module BTFs
2020-11-10 15:25:53 -08:00
task_iter.c
bpf: keep a reference to the mm, in case the task is dead.
2022-12-28 14:11:48 -08:00
tnum.c
bpf, tnums: Provably sound, faster, and more precise algorithm for tnum_mul
2021-06-01 13:34:15 +02:00
trampoline.c
bpf: Fix panic due to wrong pageattr of im->image
2022-12-28 13:46:28 -08:00
verifier.c
bpf: add support for fixed-size memory pointer returns for kfuncs
2023-03-04 11:14:32 -08:00