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linux/kernel/bpf
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Christian Brauner 6bd532e338
fs: port ->symlink() to pass const mnt_idmap 
Convert to const struct mnt_idmap.

A mount's idmapping is immutable. The only thing that is allowed to be
modified afterwards is the reference count and that is hidden behind
mnt_idmap_get() and mnt_idmap_put(). Everything else only ever reads
from the idmapping. This is the same model that struct cred uses and the
idmapping is also rather sensitive.

So make the idmap argument const wherever we can. The conversion is done
from the bottom up so callers can continue to pass a non-const pointer
to a const parameter until the conversion is finished.

No functional changes.

Link: https://patch.msgid.link/20260901-work-idmap-const-v1-21-54ccd48e100b@kernel.org
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Seth Forshee <sforshee@kernel.org>
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
2026-09-23 09:19:50 +02:00
..
preload umd: Remove usermode driver framework 2025-07-26 21:03:04 +02:00
arena.c bpf: Mark existing lock-safe kfuncs with KF_SPINLOCK_SAFE 2026-08-06 10:58:04 +02:00
arraymap.c bpf: Populate mmap-able array map memory lazily 2026-08-14 15:31:30 -07:00
backtrack.c bpf: Drop duplicate blank lines in kernel/bpf/ 2026-08-13 10:27:40 -07:00
bloom_filter.c bpf: Harden bloom filter sizing and indexing on 32-bit kernels 2026-08-05 11:45:20 -07:00
bpf_cgrp_storage.c bpf: Remove gfp_flags plumbing from bpf_local_storage_update() 2026-04-10 21:22:32 -07:00
bpf_inode_storage.c bpf: Reject BPF_MAP_TYPE_INODE_STORAGE creation if BPF LSM is uninitialized 2026-06-30 16:31:56 +02:00
bpf_insn_array.c bpf: Lose const-ness of map in map_check_btf() 2026-02-27 15:39:00 -08:00
bpf_iter.c bpf: Inline bpf_iter_num_destroy() as a no-op 2026-08-05 10:44:35 -07:00
bpf_local_storage.c bpf: Remove gfp_flags plumbing from bpf_local_storage_update() 2026-04-10 21:22:32 -07:00
bpf_lru_list.c bpf: Fix NMI/tracepoint re-entry deadlock on lru locks 2026-06-07 18:46:13 -07:00
bpf_lru_list.h bpf: Fix NMI/tracepoint re-entry deadlock on lru locks 2026-06-07 18:46:13 -07:00
bpf_lsm_proto.c bpf: annotate file argument as __nullable in bpf_lsm_mmap_file 2025-12-21 10:56:33 -08:00
bpf_lsm.c bpf: Rename ARG_CONST_SIZE{,_OR_ZERO} to ARG_MEM_SIZE{,_OR_ZERO} 2026-08-03 00:29:14 +02:00
bpf_struct_ops.c bpf: Support __arena and __arena__nullable on struct_ops arguments 2026-08-08 03:03:26 -07:00
bpf_task_storage.c bpf: Remove gfp_flags plumbing from bpf_local_storage_update() 2026-04-10 21:22:32 -07:00
btf_iter.c bpf: Remove custom build rule 2024-08-30 08:55:26 -07:00
btf_relocate.c bpf: Remove custom build rule 2024-08-30 08:55:26 -07:00
btf.c Major changes: 2026-08-20 07:36:20 -07:00
cfg.c bpf: Report Program Structure CFG errors 2026-08-15 11:15:17 -07:00
cgroup_iter.c bpf: add new BPF_CGROUP_ITER_CHILDREN control option 2026-01-27 09:05:54 -08:00
cgroup.c bpf: Reject negative optlen in cgroup getsockopt hook 2026-08-17 11:33:29 +02:00
check_btf.c bpf: Rename 'early' BTF checking as a preparation phase 2026-08-08 03:03:25 -07:00
cnum_defs.h bpf: Export cnum_umin/umax() helpers for netronome driver 2026-04-27 10:09:48 -07:00
cnum.c bpf: representation and basic operations on circular numbers 2026-04-24 18:14:17 -07:00
const_fold.c bpf: Introduce global percpu data 2026-08-13 10:27:40 -07:00
core.c bpf: Add source and instruction diagnostic context 2026-08-15 11:11:16 -07:00
cpumap.c bpf: Add missing XDP_ABORTED handling in cpumap 2026-03-03 08:37:21 -08:00
cpumask.c bpf: Require a BPF cpumask for bpf_cpumask_populate() 2026-07-12 01:52:36 +02:00
crypto.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
devmap.c bpf: Run generic devmap egress prog on private skb 2026-06-12 18:21:01 -07:00
diagnostics.c bpf: Preserve source attribution without source text 2026-08-17 11:58:23 +02:00
diagnostics.h bpf: Report Policy helper and kfunc errors 2026-08-15 11:15:17 -07:00
disasm.c bpf: Do not print a newline after disassembly in bpf_verbose_insn() 2026-08-08 11:05:49 +02:00
disasm.h
dispatcher.c bpf: dispatcher: Allocate bpf_dispatcher->rw_image with vzalloc() 2026-07-22 17:26:39 +02:00
dmabuf_iter.c bpf: Fix truncated dmabuf iterator reads 2025-12-09 23:48:34 -08:00
fixups.c bpf: Rewrite any fault prone load out of a mem or btf_id pointer 2026-08-17 10:06:42 +02:00
hashtab.c bpf: Drop duplicate blank lines in kernel/bpf/ 2026-08-13 10:27:40 -07:00
helpers.c bpf: Fix arm64 KASAN false positive after bpf_throw 2026-08-14 18:26:14 +02:00
inode.c fs: port ->symlink() to pass const mnt_idmap 2026-09-23 09:19:50 +02:00
Kconfig bpf: Update the bpf_prog_calc_tag to use SHA256 2025-09-18 19:10:20 -07:00
kmem_cache_iter.c bpf: Add open coded version of kmem_cache iterator 2024-11-01 11:08:32 -07:00
link_iter.c bpf: Clean up individual BTF_ID code 2025-07-16 18:34:42 -07:00
liveness.c bpf: Drop duplicate blank lines in kernel/bpf/ 2026-08-13 10:27:40 -07:00
local_storage.c bpf: fix end-of-list detection in cgroup_storage_get_next_key() 2026-04-05 18:45:05 -07:00
log.c bpf: Track verifier register diagnostic events 2026-08-15 11:11:16 -07:00
lpm_trie.c bpf: Allow LPM map access from sleepable BPF programs 2026-06-09 12:42:22 -07:00
Makefile bpf: Add verifier diagnostics report helpers 2026-08-15 11:11:16 -07:00
map_in_map.c bpf: Reject exclusive maps as inner maps in map-in-map 2026-06-01 18:36:40 -07:00
map_in_map.h bpf: Add map and need_defer parameters to .map_fd_put_ptr() 2023-12-04 17:50:26 -08:00
map_iter.c bpf: Implement iteration ops for resizable hashtab 2026-06-05 08:00:08 -07:00
memalloc.c bpf: Retire rcu_trace_implies_rcu_gp() 2026-04-07 12:24:49 -07:00
mmap_unlock_work.h bpf: Fix mmap_lock leak in irq_work path 2026-08-08 10:25:36 +02:00
mprog.c bpf: Handle bpf_mprog_query with NULL entry 2023-10-06 17:11:20 -07:00
net_namespace.c bpf: Fix potential UAF in bpf_netns_link_update_prog 2026-07-30 15:28:46 -07:00
offload.c bpf: Fix use-after-free in offloaded map/prog info fill 2026-04-09 13:24:32 -07:00
percpu_freelist.c bpf: Convert percpu_freelist.c to rqspinlock 2025-03-19 08:03:05 -07:00
percpu_freelist.h bpf: Convert percpu_freelist.c to rqspinlock 2025-03-19 08:03:05 -07:00
prog_iter.c bpf: Clean up individual BTF_ID code 2025-07-16 18:34:42 -07:00
queue_stack_maps.c bpf: Drop duplicate blank lines in kernel/bpf/ 2026-08-13 10:27:40 -07:00
range_tree.c bpf: arena: Reintroduce memcg accounting 2026-01-02 14:31:59 -08:00
range_tree.h bpf: Introduce range_tree data structure and use it in bpf arena 2024-11-13 13:52:45 -08:00
relo_core.c bpf: Remove custom build rule 2024-08-30 08:55:26 -07:00
reuseport_array.c bpf: Use sockfd_put() helper 2024-08-30 08:57:47 -07:00
ringbuf.c bpf: Fix available-data accounting on 32-bit wrap in overwrite mode 2026-08-14 15:20:37 -07:00
rqspinlock.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf 7.2-rc7 2026-08-07 23:04:17 +02:00
rqspinlock.h rqspinlock: Protect waiters in queue from stalls 2025-03-19 08:03:05 -07:00
stackmap.c bpf: Fix mmap_lock leak in irq_work path 2026-08-08 10:25:36 +02:00
states.c bpf: Compare iterator types during state pruning 2026-08-11 14:57:00 -07:00
stream.c bpf: Add bpf_stream_print_stack stack dumping kfunc 2026-02-03 10:41:16 -08:00
syscall.c bpf: Populate mmap-able array map memory lazily 2026-08-14 15:31:30 -07:00
sysfs_btf.c Driver core changes for 6.17-rc1 2025-07-29 12:15:39 -07:00
task_iter.c bpf: Fix mmap_lock leak in irq_work path 2026-08-08 10:25:36 +02:00
tcx.c treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
tnum.c bpf: Simplify tnum_step() 2026-03-24 08:45:29 -07:00
token.c treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
trampoline.c bpf: Make bpf_trampoline_multi_detach return void 2026-08-13 02:52:23 +02:00
verifier.c bpf: Distinguish function references in policy diagnostics 2026-08-17 11:58:24 +02:00