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| author | Li RongQing <lirongqing@baidu.com> | 2025-08-14 18:23:33 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-10-19 16:37:38 +0200 |
| commit | ed30038550014a2d8ea6d7cc3de483aaa269d2e3 (patch) | |
| tree | e1ad8bdd365a115fe2c4706aa212393415943ec2 /tools/perf/scripts/python/stackcollapse.py | |
| parent | b5d0b85afb032621fc6d960ceb9a2242f8fe9396 (diff) | |
mm/hugetlb: early exit from hugetlb_pages_alloc_boot() when max_huge_pages=0
commit b322e88b3d553e85b4e15779491c70022783faa4 upstream.
Optimize hugetlb_pages_alloc_boot() to return immediately when
max_huge_pages is 0, avoiding unnecessary CPU cycles and the below log
message when hugepages aren't configured in the kernel command line.
[ 3.702280] HugeTLB: allocation took 0ms with hugepage_allocation_threads=32
Link: https://lkml.kernel.org/r/20250814102333.4428-1-lirongqing@baidu.com
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Reviewed-by: Dev Jain <dev.jain@arm.com>
Tested-by: Dev Jain <dev.jain@arm.com>
Reviewed-by: Jane Chu <jane.chu@oracle.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions