Alexei Starovoitov 8d5a8011b3 bpf: Batch call_rcu callbacks instead of SLAB_TYPESAFE_BY_RCU. ... SLAB_TYPESAFE_BY_RCU makes kmem_caches non mergeable and slows down kmem_cache_destroy. All bpf_mem_cache are safe to share across different maps and programs. Convert SLAB_TYPESAFE_BY_RCU to batched call_rcu. This change solves the memory consumption issue, avoids kmem_cache_destroy latency and keeps bpf hash map performance the same. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20220902211058.60789-10-alexei.starovoitov@gmail.com		2022-09-05 15:33:06 +02:00
..
preload	bpf: iterators: Build and use lightweight bootstrap version of bpftool	2022-07-15 12:01:30 -07:00
arraymap.c	bpf: Acquire map uref in .init_seq_private for array map iterator	2022-08-10 10:12:47 -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 this_cpu_{inc|dec|inc_return} for bpf_task_storage_busy	2022-09-01 12:16:12 -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	bpf: Only add BTF IDs for socket security hooks when CONFIG_SECURITY_NETWORK is on	2022-09-01 16:21:14 -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	bpf: Always return corresponding btf_type in __get_type_size()	2022-08-09 10:30:45 -07:00
cgroup_iter.c	bpf: Remove useless else if	2022-09-01 14:04:07 -07:00
cgroup.c	bpf: expose bpf_strtol and bpf_strtoul to all program types	2022-08-23 16:08:21 -07:00
core.c	bpf: Add BPF-helper for accessing CLOCK_TAI	2022-08-09 09:47:13 -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: Remove bpf_image tree	2020-03-13 12:49:52 -07:00
hashtab.c	bpf: Optimize call_rcu in non-preallocated hash map.	2022-09-05 15:33:06 +02:00
helpers.c	bpf: Move bpf_loop and bpf_for_each_map_elem under CAP_BPF	2022-08-23 16:21:59 -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: Batch call_rcu callbacks instead of SLAB_TYPESAFE_BY_RCU.	2022-09-05 15:33:06 +02:00
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: avoid grabbing spin_locks of all cpus when no free elems	2022-06-11 14:25:35 -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: refactor bpf_sk_reuseport_detach()	2022-08-10 21:48:04 -07:00
ringbuf.c	bpf: Use bpf_map_area_alloc consistently on bpf map creation	2022-08-10 11:50:43 -07:00
stackmap.c	bpf: Compute map_btf_id during build time	2022-04-26 11:35:21 -07:00
syscall.c	bpf: Batch call_rcu callbacks instead of SLAB_TYPESAFE_BY_RCU.	2022-09-05 15:33:06 +02:00
sysfs_btf.c	bpf: Load and verify kernel module BTFs	2020-11-10 15:25:53 -08:00
task_iter.c	bpf: Remove redundant assignment to meta.seq in __task_seq_show()	2022-04-11 21:14:34 +02:00
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: Use this_cpu_{inc_return|dec} for prog->active	2022-09-01 12:16:18 -07:00
verifier.c	bpf: Relax the requirement to use preallocated hash maps in tracing progs.	2022-09-05 15:33:05 +02:00