• Tsutomu Itoh's avatar
    btrfs: fix return value check of btrfs_join_transaction() · 3612b495
    Tsutomu Itoh authored
    The error check of btrfs_join_transaction()/btrfs_join_transaction_nolock()
    is added, and the mistake of the error check in several places is
    corrected.
    
    For more stable Btrfs, I think that we should reduce BUG_ON().
    But, I think that long time is necessary for this.
    So, I propose this patch as a short-term solution.
    
    With this patch:
     - To more stable Btrfs, the part that should be corrected is clarified.
     - The panic isn't done by the NULL pointer reference etc. (even if
       BUG_ON() is increased temporarily)
     - The error code is returned in the place where the error can be easily
       returned.
    
    As a long-term plan:
     - BUG_ON() is reduced by using the forced-readonly framework, etc.
    Signed-off-by: default avatarTsutomu Itoh <t-itoh@jp.fujitsu.com>
    Signed-off-by: default avatarChris Mason <chris.mason@oracle.com>
    3612b495
transaction.c 36.6 KB