zonefs: count pages after truncating the iterator (89ee7237) · Commits · 戴 / test

Count pages after possibly truncating the iterator to the maximum zone append size, not before. Signed-off-by:

fs/zonefs/super.c

+4 −4

Original line number	Diff line number	Diff line
		@@ -607,14 +607,14 @@ static ssize_t zonefs_file_dio_append(struct kiocb iocb, struct iov_iter from)
		int nr_pages;
		ssize_t ret;

		nr_pages = iov_iter_npages(from, BIO_MAX_PAGES);
		if (!nr_pages)
		return 0;

		max = queue_max_zone_append_sectors(bdev_get_queue(bdev));
		max = ALIGN_DOWN(max << SECTOR_SHIFT, inode->i_sb->s_blocksize);
		iov_iter_truncate(from, max);

		nr_pages = iov_iter_npages(from, BIO_MAX_PAGES);
		if (!nr_pages)
		return 0;

		bio = bio_alloc_bioset(GFP_NOFS, nr_pages, &fs_bio_set);
		if (!bio)
		return -ENOMEM;