* Re: Patch "hugetlbfs: skip VMAs without shareable locks in hugetlb_vmdelete_list" has been added to the 6.16-stable tree
@ 2025-10-13 0:43 Deepanshu Kartikey
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From: Deepanshu Kartikey @ 2025-10-13 0:43 UTC (permalink / raw)
To: stable, stable-commits; +Cc: muchun.song, osalvador, david
Hi Sasha,
Please do NOT backport commit dd83609b8898 alone to stable. This patch
causes a regression in fallocate(PUNCH_HOLE) operations where pages are
not freed immediately, as reported by Mark Brown.
The fix for this regression is already in linux-next as commit
91a830422707 ("hugetlbfs: check for shareable lock before calling
huge_pmd_unshare()").
Please backport both commits together to avoid introducing the
regression in stable kernels:
- dd83609b88986f4add37c0871c3434310652ebd5 ("hugetlbfs: skip VMAs without shareable locks in hugetlb_vmdelete_list")
- 91a830422707a62629fc4fbf8cdc3c8acf56ca64 ("hugetlbfs: check for shareable lock before calling huge_pmd_unshare()")
Thanks,
Deepanshu Kartikey
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2025-10-13 0:43 Patch "hugetlbfs: skip VMAs without shareable locks in hugetlb_vmdelete_list" has been added to the 6.16-stable tree Deepanshu Kartikey
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