diff options
| author | Zi Yan <ziy@nvidia.com> | 2022-04-08 23:08:52 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-04-09 03:20:36 +0300 |
| commit | a04cd1600b831a16625b45226b90a292c8f6e8d9 (patch) | |
| tree | 28363aaa3389bd3625ff61f32f58ad5a748a84e8 /mm/highmem.c | |
| parent | d00c50b35101b862c3db270ffeba53a63a1063d9 (diff) | |
| download | linux-a04cd1600b831a16625b45226b90a292c8f6e8d9.tar.xz | |
mm: migrate: use thp_order instead of HPAGE_PMD_ORDER for new page allocation.
Fix a VM_BUG_ON_FOLIO(folio_nr_pages(old) != nr_pages) crash.
With folios support, it is possible to have other than HPAGE_PMD_ORDER
THPs, in the form of folios, in the system. Use thp_order() to correctly
determine the source page order during migration.
Link: https://lkml.kernel.org/r/20220404165325.1883267-1-zi.yan@sent.com
Link: https://lore.kernel.org/linux-mm/20220404132908.GA785673@u2004/
Fixes: d68eccad3706 ("mm/filemap: Allow large folios to be added to the page cache")
Reported-by: Naoya Horiguchi <naoya.horiguchi@linux.dev>
Signed-off-by: Zi Yan <ziy@nvidia.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/highmem.c')
0 files changed, 0 insertions, 0 deletions