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sched_ext: Convert scx_arena_grow() to use scx_arena_to_kaddr()

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scx_arena_grow() was left open-coded when 2e05f2fd0d ("sched_ext: Add
scx_arena_to_kaddr() / scx_kaddr_to_arena()") introduced the helper.
Replace the manual bpf_arena_map_kern_vm_start() fetch and #ifdef guard
with scx_arena_to_kaddr(sch, p).

Signed-off-by: Cheng-Yang Chou <yphbchou0911@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Cheng-Yang Chou
2026-06-25 10:16:30 -10:00
committed by Tejun Heo
parent 252891d03d
commit e2c60e15d0
1 changed files with 2 additions and 11 deletions
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kernel/sched/ext/arena.c
+2 -11
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@@ -70,8 +70,6 @@ void scx_arena_pool_destroy(struct scx_sched *sch)
*/
static int scx_arena_grow(struct scx_sched *sch, u32 page_cnt)
{
u64 kern_vm_start;
u32 uaddr32;
void *p;
int ret;
@@ -83,15 +81,8 @@ static int scx_arena_grow(struct scx_sched *sch, u32 page_cnt)
if (!p)
return -ENOMEM;
uaddr32 = (u32)(unsigned long)p;
/* arena.o, which defines these, is built only on MMU && 64BIT */
#if defined(CONFIG_MMU) && defined(CONFIG_64BIT)
kern_vm_start = bpf_arena_map_kern_vm_start(sch->arena_map);
#else
kern_vm_start = 0;
#endif
ret = gen_pool_add(sch->arena_pool, kern_vm_start + uaddr32,
ret = gen_pool_add(sch->arena_pool,
(unsigned long)scx_arena_to_kaddr(sch, p),
page_cnt * PAGE_SIZE, NUMA_NO_NODE);
if (ret) {
bpf_arena_free_pages_non_sleepable(sch->arena_map, p, page_cnt);