diff options
| author |   Josef Bacik <josef@toxicpanda.com> | 2020-10-16 11:29:18 -0400 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2020-12-08 15:53:41 +0100 |
| commit | 42437a6386ffeaaf200731e73d723ea491f3fe7d (patch) | |
| tree | d8c5d6ebb854ecdb34e61fe7d9f458656e1713f1 /fs/btrfs/file-item.c | |
| parent | btrfs: show rescue=usebackuproot in /proc/mounts (diff) | |
| download | linux-dev-42437a6386ffeaaf200731e73d723ea491f3fe7d.tar.xz linux-dev-42437a6386ffeaaf200731e73d723ea491f3fe7d.zip | |
btrfs: introduce mount option rescue=ignorebadroots
In the face of extent root corruption, or any other core fs wide root
corruption we will fail to mount the file system. This makes recovery
kind of a pain, because you need to fall back to userspace tools to
scrape off data. Instead provide a mechanism to gracefully handle bad
roots, so we can at least mount read-only and possibly recover data from
the file system.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/file-item.c')
| -rw-r--r-- | fs/btrfs/file-item.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c index 8083d71d6af6..816f57d52fc9 100644 --- a/fs/btrfs/file-item.c +++ b/fs/btrfs/file-item.c @@ -272,7 +272,7 @@ blk_status_t btrfs_lookup_bio_sums(struct inode *inode, struct bio *bio, int count = 0; u16 csum_size = btrfs_super_csum_size(fs_info->super_copy); - if (BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM) + if (!fs_info->csum_root || (BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM)) return BLK_STS_OK; path = btrfs_alloc_path(); |