• Paul Menage's avatar
    [PATCH] Shift BKL into ->statfs() · 0aa838c6
    Paul Menage authored
    This patch removes BKL protection from the invocation of the
    super_operations ->statfs() method, and shifts it into the filesystems
    where necessary. Any out-of-tree filesystems may need to take the BKL in
    their statfs() methods if they were relying on it for synchronisation.
    
    All ->statfs() implementations have been modified to take the BKL,
    except for those that don't reference any external mutable data or that
    already have their own locking.
    
    Additionally, capifs is changed to use simple_statfs rather than its
    own home-grown version.
    
    The BKL change has been flagged at the end of
    Documentation/filesystems/porting, along with the recent change to
    ->permission BKL usage.
    0aa838c6
super.c 51.1 KB