diff options
Diffstat (limited to 'block/bio.c')
| -rw-r--r-- | block/bio.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/block/bio.c b/block/bio.c index d3490aeb1a7e..8adc2a20d57d 100644 --- a/block/bio.c +++ b/block/bio.c @@ -659,8 +659,13 @@ static inline bool page_is_mergeable(const struct bio_vec *bv, return false; if (xen_domain() && !xen_biovec_phys_mergeable(bv, page)) return false; - if (same_page && (vec_end_addr & PAGE_MASK) != page_addr) - return false; + + if ((vec_end_addr & PAGE_MASK) != page_addr) { + if (same_page) + return false; + if (pfn_to_page(PFN_DOWN(vec_end_addr)) + 1 != page) + return false; + } return true; } |