From: Liu Bo Date: Wed, 29 Mar 2017 17:55:16 +0000 (-0700) Subject: Btrfs: set scrub page's io_error if failing to submit io X-Git-Tag: v4.12-rc1~44^2~23 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=1bcd7aa17fc1fa29009feec3e0ac4230d0d9f700;p=linux.git Btrfs: set scrub page's io_error if failing to submit io Scrub repairs data by the unit called scrub_block, which may contain several pages. Scrub always tries to look up a good copy of a whole block, but if there's no such copy, it tries to do repair page by page. If we don't set page's io_error when checking this bad copy, in the last step, we may skip this page when repairing bad copy from good copy. Cc: David Sterba Signed-off-by: Liu Bo Reviewed-by: David Sterba Signed-off-by: David Sterba --- diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c index 6ba0c9ddf777..f499ed782671 100644 --- a/fs/btrfs/scrub.c +++ b/fs/btrfs/scrub.c @@ -1497,14 +1497,18 @@ static void scrub_recheck_block(struct btrfs_fs_info *fs_info, bio_add_page(bio, page->page, PAGE_SIZE, 0); if (!retry_failed_mirror && scrub_is_page_on_raid56(page)) { - if (scrub_submit_raid56_bio_wait(fs_info, bio, page)) + if (scrub_submit_raid56_bio_wait(fs_info, bio, page)) { + page->io_error = 1; sblock->no_io_error_seen = 0; + } } else { bio->bi_iter.bi_sector = page->physical >> 9; bio_set_op_attrs(bio, REQ_OP_READ, 0); - if (btrfsic_submit_bio_wait(bio)) + if (btrfsic_submit_bio_wait(bio)) { + page->io_error = 1; sblock->no_io_error_seen = 0; + } } bio_put(bio);