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17fcdd8699
pcpu_depopulate_chunk() only needs the temporary pages array that was already allocated by an earlier successful population attempt. Passing GFP_KERNEL to pcpu_get_pages() in this path is misleading because the depopulation path is not expected to allocate the array. Teach pcpu_get_pages() to treat a zero gfp mask as a cached-only lookup and add pcpu_get_pages_cached() for that use case. This keeps allocation on the populate path tied to the caller supplied GFP mask while making the depopulate path's dependency on the cached array explicit. Link: https://lore.kernel.org/20260618130414.96383-4-kaitao.cheng@linux.dev Signed-off-by: Kaitao Cheng <chengkaitao@kylinos.cn> Suggested-by: Dennis Zhou <dennis@kernel.org> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Christoph Lameter <cl@gentwo.org> Cc: Pedro Falcato <pfalcato@suse.de> Cc: Shivam Kalra <shivamkalra98@zohomail.in> Cc: Tejun Heo <tj@kernel.org> Cc: Uladzislau Rezki (Sony) <urezki@gmail.com> Cc: Vlastimil Babka <vbabka@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
430 lines
12 KiB
430 lines
12 KiB