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| author | Jan Schmidt <list.btrfs@jan-o-sch.net> | 2011-06-16 14:37:03 +0200 |
|---|---|---|
| committer | Jan Schmidt <list.btrfs@jan-o-sch.net> | 2011-09-29 13:38:42 +0200 |
| commit | 1503140d3ec2be9b917d2f8f7c64cb77b79a215b (patch) | |
| tree | 6138ec14ae6301c69687a769cc96a39044ee49aa /fs | |
| parent | btrfs: btrfs_multi_bio replaced with btrfs_bio (diff) | |
| download | linux-1503140d3ec2be9b917d2f8f7c64cb77b79a215b.tar.xz linux-1503140d3ec2be9b917d2f8f7c64cb77b79a215b.zip | |
btrfs: Do not use bio->bi_bdev after submission
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>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/inode.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index efee8c7cfa45..936a6fabaa9f 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -1915,7 +1915,7 @@ 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)); |