• Chris Mason's avatar
    Btrfs: Data ordered fixes · 4a096752
    Chris Mason authored
    * In btrfs_delete_inode, wait for ordered extents after calling
    truncate_inode_pages.  This is much faster, and more correct
    * Properly clear our the PageChecked bit everywhere we redirty the page.
    * Change the writepage fixup handler to lock the page range and check to
    see if an ordered extent had been inserted since the improperly dirtied
    page was discovered
    * Wait for ordered extents outside the transaction.  This isn't required
    for locking rules but does improve transaction latencies
    * Reduce contention on the alloc_mutex by dropping it while incrementing
    refs on a node/leaf and while dropping refs on a leaf.
    Signed-off-by: default avatarChris Mason <chris.mason@oracle.com>