Björn Töpel cee271678d xsk: do not call synchronize_net() under RCU read lock ... The XSKMAP update and delete functions called synchronize_net(), which can sleep. It is not allowed to sleep during an RCU read section. Instead we need to make sure that the sock sk_destruct (xsk_destruct) function is asynchronously called after an RCU grace period. Setting the SOCK_RCU_FREE flag for XDP sockets takes care of this. Fixes: fbfc504a24 ("bpf: introduce new bpf AF_XDP map type BPF_MAP_TYPE_XSKMAP") Reported-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Björn Töpel <bjorn.topel@intel.com> Acked-by: Song Liu <songliubraving@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>		2018-10-11 10:19:01 +02:00
..
arraymap.c	bpf: decouple btf from seq bpf fs dump and enable more maps	2018-08-13 00:52:45 +02:00
bpf_lru_list.c
bpf_lru_list.h
btf.c	bpf: btf: Fix end boundary calculation for type section	2018-09-12 22:00:23 +02:00
cgroup.c	bpf: introduce update_effective_progs()	2018-08-07 14:29:55 +02:00
core.c	bpf: fix a rcu usage warning in bpf_prog_array_copy_core()	2018-08-16 21:55:32 +02:00
cpumap.c	bpf: fix redirect to map under tail calls	2018-08-17 15:56:23 -07:00
devmap.c	bpf: fix redirect to map under tail calls	2018-08-17 15:56:23 -07:00
disasm.c
disasm.h
hashtab.c	bpf: use per htab salt for bucket hash	2018-08-23 18:45:47 +02:00
helpers.c
inode.c	bpf: decouple btf from seq bpf fs dump and enable more maps	2018-08-13 00:52:45 +02:00
local_storage.c	bpf: don't accept cgroup local storage with zero value size	2018-10-02 14:42:23 +02:00
lpm_trie.c	bpf: decouple btf from seq bpf fs dump and enable more maps	2018-08-13 00:52:45 +02:00
Makefile	bpf: Introduce BPF_MAP_TYPE_REUSEPORT_SOCKARRAY	2018-08-11 01:58:46 +02:00
map_in_map.c
map_in_map.h
offload.c
percpu_freelist.c
percpu_freelist.h
reuseport_array.c	bpf: Introduce BPF_MAP_TYPE_REUSEPORT_SOCKARRAY	2018-08-11 01:58:46 +02:00
sockmap.c	bpf: sockmap, fix transition through disconnect without close	2018-09-22 02:46:41 +02:00
stackmap.c	bpf: decouple btf from seq bpf fs dump and enable more maps	2018-08-13 00:52:45 +02:00
syscall.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2018-08-15 15:04:25 -07:00
tnum.c
verifier.c	bpf: 32-bit RSH verification must truncate input before the ALU op	2018-10-05 18:41:45 +02:00
xskmap.c	xsk: do not call synchronize_net() under RCU read lock	2018-10-11 10:19:01 +02:00