diff options
Diffstat (limited to 'fs/iomap.c')
-rw-r--r-- | fs/iomap.c | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/fs/iomap.c b/fs/iomap.c index 23ef63fd1669..7a147aa0c4d9 100644 --- a/fs/iomap.c +++ b/fs/iomap.c @@ -287,7 +287,7 @@ iomap_readpage_actor(struct inode *inode, loff_t pos, loff_t length, void *data, struct iomap_readpage_ctx *ctx = data; struct page *page = ctx->cur_page; struct iomap_page *iop = iomap_page_create(inode, page); - bool is_contig = false; + bool same_page = false, is_contig = false; loff_t orig_pos = pos; unsigned poff, plen; sector_t sector; @@ -315,10 +315,14 @@ iomap_readpage_actor(struct inode *inode, loff_t pos, loff_t length, void *data, * Try to merge into a previous segment if we can. */ sector = iomap_sector(iomap, pos); - if (ctx->bio && bio_end_sector(ctx->bio) == sector) { - if (__bio_try_merge_page(ctx->bio, page, plen, poff, true)) - goto done; + if (ctx->bio && bio_end_sector(ctx->bio) == sector) is_contig = true; + + if (is_contig && + __bio_try_merge_page(ctx->bio, page, plen, poff, &same_page)) { + if (!same_page && iop) + atomic_inc(&iop->read_count); + goto done; } /* @@ -329,7 +333,7 @@ iomap_readpage_actor(struct inode *inode, loff_t pos, loff_t length, void *data, if (iop) atomic_inc(&iop->read_count); - if (!ctx->bio || !is_contig || bio_full(ctx->bio)) { + if (!ctx->bio || !is_contig || bio_full(ctx->bio, plen)) { gfp_t gfp = mapping_gfp_constraint(page->mapping, GFP_KERNEL); int nr_vecs = (length + PAGE_SIZE - 1) >> PAGE_SHIFT; @@ -1595,13 +1599,7 @@ static void iomap_dio_bio_end_io(struct bio *bio) if (should_dirty) { bio_check_pages_dirty(bio); } else { - if (!bio_flagged(bio, BIO_NO_PAGE_REF)) { - struct bvec_iter_all iter_all; - struct bio_vec *bvec; - - bio_for_each_segment_all(bvec, bio, iter_all) - put_page(bvec->bv_page); - } + bio_release_pages(bio, false); bio_put(bio); } } |