diff options
| author | Danilo Krummrich <dakr@kernel.org> | 2025-09-10 11:07:05 +0200 |
|---|---|---|
| committer | Danilo Krummrich <dakr@kernel.org> | 2025-09-10 11:07:05 +0200 |
| commit | d4dc08c530cbf71fb1c7cddb9d1e7e36bd62e22f (patch) | |
| tree | d26f9c9ffe7168b67ca107d26883b15dcd0cc7e2 /mm/userfaultfd.c | |
| parent | 6b35936f058d0cb9171c7be1424b62017b874913 (diff) | |
| parent | 043d9c6928b010be7902a01b5cdfa7d754535b1a (diff) | |
Merge drm-misc-next-2025-08-21 into drm-rust-next
We need the DRM Rust changes that went into drm-misc before the
existence of the drm-rust tree in here as well.
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Diffstat (limited to 'mm/userfaultfd.c')
| -rw-r--r-- | mm/userfaultfd.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/mm/userfaultfd.c b/mm/userfaultfd.c index cbed91b09640..45e6290e2e8b 100644 --- a/mm/userfaultfd.c +++ b/mm/userfaultfd.c @@ -1821,13 +1821,16 @@ ssize_t move_pages(struct userfaultfd_ctx *ctx, unsigned long dst_start, /* Check if we can move the pmd without splitting it. */ if (move_splits_huge_pmd(dst_addr, src_addr, src_start + len) || !pmd_none(dst_pmdval)) { - struct folio *folio = pmd_folio(*src_pmd); - - if (!folio || (!is_huge_zero_folio(folio) && - !PageAnonExclusive(&folio->page))) { - spin_unlock(ptl); - err = -EBUSY; - break; + /* Can be a migration entry */ + if (pmd_present(*src_pmd)) { + struct folio *folio = pmd_folio(*src_pmd); + + if (!is_huge_zero_folio(folio) && + !PageAnonExclusive(&folio->page)) { + spin_unlock(ptl); + err = -EBUSY; + break; + } } spin_unlock(ptl); |