Hou Tao d39d1445d3 bpf: Use rcu_trace_implies_rcu_gp() in local storage map ...

Local storage map is accessible for both sleepable and non-sleepable bpf
program, and its memory is freed by using both call_rcu_tasks_trace() and
kfree_rcu() to wait for both RCU-tasks-trace grace period and RCU grace
period to pass.

With the introduction of rcu_trace_implies_rcu_gp(), both
bpf_selem_free_rcu() and bpf_local_storage_free_rcu() can check whether
or not a normal RCU grace period has also passed after a RCU-tasks-trace
grace period has passed. If it is true, it is safe to call kfree()
directly.

Signed-off-by: Hou Tao <houtao1@huawei.com>
Link: https://lore.kernel.org/r/20221014113946.965131-4-houtao@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

2022-10-18 10:27:02 -07:00

..

preload

bpf: iterators: Build and use lightweight bootstrap version of bpftool

2022-07-15 12:01:30 -07:00

arraymap.c

bpf: Support kptrs in percpu arraymap

2022-09-07 11:46:08 -07:00

bloom_filter.c

bpf: Compute map_btf_id during build time

2022-04-26 11:35:21 -07:00

bpf_inode_storage.c

bpf: Compute map_btf_id during build time

2022-04-26 11:35:21 -07:00

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 rcu_trace_implies_rcu_gp() in local storage map

2022-10-18 10:27:02 -07:00

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

Merge tag 'net-next-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

2022-10-04 13:38:03 -07:00

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

bpf: Remove is_valid_bpf_tramp_flags()

2022-07-11 21:04:58 +02:00

bpf_task_storage.c

bpf: Use this_cpu_{inc|dec|inc_return} for bpf_task_storage_busy

2022-09-01 12:16:12 -07:00

btf.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2022-10-03 17:44:18 -07:00

cgroup_iter.c

bpf: Remove useless else if

2022-09-01 14:04:07 -07:00

cgroup.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2022-10-03 17:44:18 -07:00

core.c

bpf: use bpf_prog_pack for bpf_dispatcher

2022-09-26 20:40:43 -07:00

cpumap.c

bpf: Use bpf_map_area_alloc consistently on bpf map creation

2022-08-10 11:50:43 -07:00

devmap.c

bpf: Use bpf_map_area_alloc consistently on bpf map creation

2022-08-10 11:50:43 -07:00

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: use bpf_prog_pack for bpf_dispatcher

2022-09-26 20:40:43 -07:00

hashtab.c

bpf: Always use raw spinlock for hash bucket lock

2022-09-21 18:08:54 -07:00

helpers.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2022-10-03 17:44:18 -07:00

inode.c

bpf: Convert bpf_preload.ko to use light skeleton.

2022-02-10 23:31:51 +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: Use bpf_map_area_alloc consistently on bpf map creation

2022-08-10 11:50:43 -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: Introduce any context BPF specific memory allocator.

2022-09-05 15:33:05 +02:00

map_in_map.c

bpf: Allow storing unreferenced kptr in map

2022-04-25 17:31:35 -07:00

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: Use rcu_trace_implies_rcu_gp() in bpf memory allocator

2022-10-18 10:27:02 -07:00

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: Use bpf_map_area_alloc consistently on bpf map creation

2022-08-10 11:50:43 -07:00

percpu_freelist.c

bpf: Simplify code by using for_each_cpu_wrap()

2022-09-10 16:18:55 -07:00

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

bpf: Refactor bpf_iter_reg to have separate seq_info member

2020-07-25 20:16:32 -07:00

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: Add bpf_user_ringbuf_drain() helper

2022-09-21 16:24:58 -07:00

stackmap.c

bpf: Compute map_btf_id during build time

2022-04-26 11:35:21 -07:00

syscall.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2022-10-03 17:44:18 -07:00

sysfs_btf.c

bpf: Load and verify kernel module BTFs

2020-11-10 15:25:53 -08:00

task_iter.c

bpf: Handle show_fdinfo for the parameterized task BPF iterators

2022-09-28 16:30:00 -07:00

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: Add __bpf_prog_{enter,exit}_struct_ops for struct_ops trampoline

2022-09-29 09:25:47 -07:00

verifier.c

btf: Allow dynamic pointer parameters in kfuncs

2022-09-21 17:32:48 -07:00