[PATCH v5 03/17] kexec: Extract kexec_free_segment_cma() from kimage_free_cma()

[sashiko-bot at kernel.org]

> kimage_free_cma() relies on image->nr_segments to iterate over segments.
> When an architecture loader (e.g., arm64) truncates nr_segments on a
> mid-way failure, CMA pages allocated beyond the new boundary become
> unreachable, causing silent memory leaks.
> 
> Extract the per-segment freeing logic into the exported helper
> kexec_free_segment_cma(), so that architecture loaders can release
> individual segments before nr_segments is truncated. Refactor
> kimage_free_cma() to loop over the new helper, preserving existing
> behavior.
> 
> Cc: Andrew Morton <akpm at linux-foundation.org>
> Cc: Baoquan He <baoquan.he at linux.dev>
> Cc: Mike Rapoport <rppt at kernel.org>
> Cc: Pasha Tatashin <pasha.tatashin at soleen.com>
> Cc: Pratyush Yadav <pratyush at kernel.org>
> Signed-off-by: Jinjie Ruan <ruanjinjie at huawei.com>

Sashiko has reviewed this patch and found no issues. It looks great!

-- 
Sashiko AI review · https://sashiko.dev/#/patchset/20260918100442.3841135-1-ruanjinjie@huawei.com?part=3