diff options
Diffstat (limited to 'mm/readahead.c')
| -rw-r--r-- | mm/readahead.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/mm/readahead.c b/mm/readahead.c index 1d1a84deb5..2648ec4f04 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -511,16 +511,14 @@ void page_cache_ra_order(struct readahead_control *ractl, unsigned int order = new_order; /* Align with smaller pages if needed */ - if (index & ((1UL << order) - 1)) { + if (index & ((1UL << order) - 1)) order = __ffs(index); - if (order == 1) - order = 0; - } /* Don't allocate pages past EOF */ - while (index + (1UL << order) - 1 > limit) { - if (--order == 1) - order = 0; - } + while (index + (1UL << order) - 1 > limit) + order--; + /* THP machinery does not support order-1 */ + if (order == 1) + order = 0; err = ra_alloc_folio(ractl, index, mark, order, gfp); if (err) break; |