On 3/23/26 20:06, Zi Yan wrote: > READ_ONLY_THP_FOR_FS is no longer present, remove corresponding code. > > Signed-off-by: Zi Yan <[email protected]> > --- > mm/khugepaged.c | 159 +++++++++++------------------------------------- > 1 file changed, 34 insertions(+), 125 deletions(-) > > diff --git a/mm/khugepaged.c b/mm/khugepaged.c > index b2ac28ddd480..39f0b8959535 100644 > --- a/mm/khugepaged.c > +++ b/mm/khugepaged.c > @@ -1899,7 +1899,7 @@ static enum scan_result collapse_file(struct mm_struct > *mm, unsigned long addr, > int nr_none = 0; > bool is_shmem = shmem_file(file); > > - VM_BUG_ON(!IS_ENABLED(CONFIG_READ_ONLY_THP_FOR_FS) && !is_shmem); > + VM_WARN_ON_ONCE(!is_shmem);
Oh, but if that means that khugepaged cannot collapse large folios in FSes anymore, then this is the wrong approach I suppose? I would have assumed that we would now collapse for any files that support large folios (in PMD size), not stopping to collapse entirely. -- Cheers, David
