• Josef Bacik's avatar
    Btrfs: try not to ENOSPC on log replay · 581aa18a
    Josef Bacik authored
    commit 1d52c78a upstream.
    
    When doing log replay we may have to update inodes, which traditionally goes
    through our delayed inode stuff.  This will try to move space over from the
    trans handle, but we don't reserve space in our trans handle on replay since we
    don't know how much we will need, so instead we try to flush.  But because we
    have a trans handle open we won't flush anything, so if we are out of reserve
    space we will simply return ENOSPC.  Since we know that if an operation made it
    into the log then we definitely had space before the box bought the farm then we
    don't need to worry about doing this space reservation.  Use the
    fs_info->log_root_recovering flag to skip the delayed inode stuff and update the
    item directly.  Thanks,
    Signed-off-by: default avatarJosef Bacik <jbacik@fb.com>
    Signed-off-by: default avatarChris Mason <clm@fb.com>
    Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
    581aa18a
inode.c 240 KB