• Jan Blunck's avatar
    Embed a struct path into struct nameidata instead of nd->{dentry,mnt} · 4ac91378
    Jan Blunck authored
    This is the central patch of a cleanup series. In most cases there is no good
    reason why someone would want to use a dentry for itself. This series reflects
    that fact and embeds a struct path into nameidata.
    
    Together with the other patches of this series
    - it enforced the correct order of getting/releasing the reference count on
      <dentry,vfsmount> pairs
    - it prepares the VFS for stacking support since it is essential to have a
      struct path in every place where the stack can be traversed
    - it reduces the overall code size:
    
    without patch series:
       text    data     bss     dec     hex filename
    5321639  858418  715768 6895825  6938d1 vmlinux
    
    with patch series:
       text    data     bss     dec     hex filename
    5320026  858418  715768 6894212  693284 vmlinux
    
    This patch:
    
    Switch from nd->{dentry,mnt} to nd->path.{dentry,mnt} everywhere.
    
    [akpm@linux-foundation.org: coding-style fixes]
    [akpm@linux-foundation.org: fix cifs]
    [akpm@linux-foundation.org: fix smack]
    Signed-off-by: default avatarJan Blunck <jblunck@suse.de>
    Signed-off-by: default avatarAndreas Gruenbacher <agruen@suse.de>
    Acked-by: default avatarChristoph Hellwig <hch@lst.de>
    Cc: Al Viro <viro@zeniv.linux.org.uk>
    Cc: Casey Schaufler <casey@schaufler-ca.com>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    4ac91378
mntpt.c 6.78 KB