[PATCH 1/8] mm: Add ptep_try_install() for lockless empty-slot installs

[patchwork-bot+netdevbpf at kernel.org]

Hello:

This series was applied to bpf/bpf-next.git (master)
by Alexei Starovoitov <ast at kernel.org>:

On Sun, 17 May 2026 11:12:25 -1000 you wrote:
> Add ptep_try_install(ptep, new_pte): atomically set *ptep to new_pte
> iff it is currently pte_none(). Returns true on success, false if the
> slot was already populated or the arch has no implementation.
> 
> The intended caller is the upcoming bpf_arena kernel-side fault
> recovery path. The install runs from a page fault and may have to
> contend with locks already held by the faulting kernel caller, so
> keeping it lock-free via cmpxchg is the safe choice.
> 
> [...]

Here is the summary with links:
  - [1/8] mm: Add ptep_try_install() for lockless empty-slot installs
    (no matching commit)
  - [2/8] bpf: Recover arena kernel faults with scratch page
    (no matching commit)
  - [3/8] bpf: Add sleepable variant of bpf_arena_alloc_pages for kernel callers
    https://git.kernel.org/bpf/bpf-next/c/f211c81ddc36
  - [4/8] bpf: Add bpf_struct_ops_for_each_prog()
    https://git.kernel.org/bpf/bpf-next/c/7c48a28c1bbe
  - [5/8] bpf/arena: Add bpf_arena_map_kern_vm_start() and bpf_prog_arena()
    https://git.kernel.org/bpf/bpf-next/c/53cc12a2dc88
  - [6/8] sched_ext: Require an arena for cid-form schedulers
    (no matching commit)
  - [7/8] sched_ext: Sub-allocator over kernel-claimed BPF arena pages
    (no matching commit)
  - [8/8] sched_ext: Convert ops.set_cmask() to arena-resident cmask
    (no matching commit)

You are awesome, thank you!
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