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Remove KF_SLEEPABLE from arena kfuncs #10310

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Remove KF_SLEEPABLE from arena kfuncs #10310

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9277668
bpf: arena: populate vm_area without allocating memory
puranjaymohan Nov 17, 2025
9796d86
bpf: arena: use kmalloc_nolock() in place of kvcalloc()
puranjaymohan Nov 17, 2025
496634f
bpf: arena: make arena kfuncs any context safe
puranjaymohan Nov 17, 2025
a02f8ed
selftests: bpf: test non-sleepable arena allocations
puranjaymohan Nov 17, 2025
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15 changes: 15 additions & 0 deletions include/linux/bpf.h
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Original file line number Diff line number Diff line change
Expand Up @@ -673,6 +673,21 @@ void bpf_map_free_internal_structs(struct bpf_map *map, void *obj);
int bpf_dynptr_from_file_sleepable(struct file *file, u32 flags,
struct bpf_dynptr *ptr__uninit);

#if defined(CONFIG_MMU) && defined(CONFIG_64BIT)
void *bpf_arena_alloc_pages_non_sleepable(void *p__map, void *addr__ign, u32 page_cnt, int node_id,
u64 flags);
void bpf_arena_free_pages_non_sleepable(void *p__map, void *ptr__ign, u32 page_cnt);
#else
static inline void *bpf_arena_alloc_pages_non_sleepable(void *p__map, void *addr__ign, u32 page_cnt,
int node_id, u64 flags)
{
}

static inline void bpf_arena_free_pages_non_sleepable(void *p__map, void *ptr__ign, u32 page_cnt)
{
}
#endif

extern const struct bpf_map_ops bpf_map_offload_ops;

/* bpf_type_flag contains a set of flags that are applicable to the values of
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