From: Johannes Thumshirn Date: Thu, 16 Jul 2020 10:37:23 +0000 (+0900) Subject: zonefs: count pages after truncating the iterator X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=89ee72376be23a1029a0c65eff8838c262b01d65;p=linux.git zonefs: count pages after truncating the iterator Count pages after possibly truncating the iterator to the maximum zone append size, not before. Signed-off-by: Johannes Thumshirn Signed-off-by: Damien Le Moal --- diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c index e419833107b28..abfb17f88f9a2 100644 --- a/fs/zonefs/super.c +++ b/fs/zonefs/super.c @@ -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;