Thomas Gleixner f60007c9e9 bpf: Remove recursion prevention from rcu free callback ...

[ Upstream commit 8a37963c7a ]

If an element is freed via RCU then recursion into BPF instrumentation
functions is not a concern. The element is already detached from the map
and the RCU callback does not hold any locks on which a kprobe, perf event
or tracepoint attached BPF program could deadlock.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200224145643.259118710@linutronix.de
Signed-off-by: Sasha Levin <sashal@kernel.org>

2020-10-01 13:17:36 +02:00

..

arraymap.c

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

2019-06-17 20:20:36 -07:00

bpf_lru_list.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206

2019-05-30 11:29:53 -07:00

bpf_lru_list.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206

2019-05-30 11:29:53 -07:00

btf.c

bpf: Explicitly memset some bpf info structures declared on the stack

2020-04-02 15:11:01 +02:00

cgroup.c

bpf: Don't return EINVAL from {get,set}sockopt when optlen > PAGE_SIZE

2020-06-30 15:36:56 -04:00

core.c

bpf: Fix use after free in subprog's jited symbol removal

2019-10-22 11:26:09 -07:00

cpumap.c

cpumap: Avoid warning when CONFIG_DEBUG_PER_CPU_MAPS is enabled

2020-05-02 08:48:51 +02:00

devmap.c

devmap: Use bpf_map_area_alloc() for allocating hash buckets

2020-06-30 15:36:56 -04:00

disasm.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295

2019-06-05 17:36:38 +02:00

disasm.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295

2019-06-05 17:36:38 +02:00

hashtab.c

bpf: Remove recursion prevention from rcu free callback

2020-10-01 13:17:36 +02:00

helpers.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295

2019-06-05 17:36:38 +02:00

inode.c

bpf: map_seq_next should always increase position index

2020-02-24 08:36:58 +01:00

local_storage.c

bpf: move memory size checks to bpf_map_charge_init()

2019-05-31 16:52:56 -07:00

lpm_trie.c

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

2019-06-22 08:59:24 -04:00

Makefile

btf: expose BTF info through sysfs

2019-08-13 16:14:15 +02:00

map_in_map.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206

2019-05-30 11:29:53 -07:00

map_in_map.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206

2019-05-30 11:29:53 -07:00

offload.c

bpf, offload: Replace bitwise AND by logical AND in bpf_prog_offload_info_fill

2020-02-28 17:22:27 +01:00

percpu_freelist.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206

2019-05-30 11:29:53 -07:00

percpu_freelist.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206

2019-05-30 11:29:53 -07:00

queue_stack_maps.c

bpf: move memory size checks to bpf_map_charge_init()

2019-05-31 16:52:56 -07:00

reuseport_array.c

bpf: move memory size checks to bpf_map_charge_init()

2019-05-31 16:52:56 -07:00

stackmap.c

bpf/stackmap: Fix deadlock with rq_lock in bpf_get_stack()

2019-12-31 16:44:09 +01:00

syscall.c

bpf: sockmap: Require attach_bpf_fd when detaching a program

2020-08-07 09:34:02 +02:00

sysfs_btf.c

bpf: Support llvm-objcopy for vmlinux BTF

2020-06-17 16:40:20 +02:00

tnum.c

bpf: Fix incorrect verifier simulation of ARSH under ALU32

2020-01-23 08:22:44 +01:00

verifier.c

bpf: Forbid XADD on spilled pointers for unprivileged users

2020-05-02 08:48:46 +02:00

xskmap.c

bpf/xskmap: Return ERR_PTR for failure case instead of NULL.

2019-09-25 22:14:16 +02:00