| Message ID | 74d6cec5467dcf696e28846edd1d17843cc4451a.1311344751.git.list.btrfs@jan-o-sch.net (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 4a13730..6ec7a93 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -1916,7 +1916,7 @@ static int btrfs_io_failed_hook(struct bio *failed_bio, bio->bi_private = state; bio->bi_end_io = failed_bio->bi_end_io; bio->bi_sector = failrec->logical >> 9; - bio->bi_bdev = failed_bio->bi_bdev; + bio->bi_bdev = BTRFS_I(inode)->root->fs_info->fs_devices->latest_bdev; bio->bi_size = 0; bio_add_page(bio, page, failrec->len, start - page_offset(page));
The block layer modifies bio->bi_bdev and bio->bi_sector while working on the bio, they do _not_ come back unmodified in the completion callback. To call add_page, we need at least some bi_bdev set, which is why the code was working, previously. With this patch, we use the latest_bdev from fsinfo instead of the leftover in the bio. This gives us the possibility to use the bi_bdev field for another purpose. Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net> --- fs/btrfs/inode.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)