   CLONE_FILES  CLONE_FS,    -
 8.  ,     
       files_struct,   fs_struct. 
count     ,   -
  ,       .

 namespace   -.   
      (  
  ).      clone () 
 CLONE_NEWNS,       .
       ,  
    . ,  -
      .

   
 Linux

  Linux     , 
"" ext2  ext3    ,   NFS  Coda. 
    Linux   50  . 
VFS           -
         .
,       
        Linux, 
          -
   Unix.

       VFS   -
  ,    ,  inode, dentry 
superblock.   12, "  ",    , 
     .

      CLONE_FILES  CLONE_FS,   -
   files__struct  -fs_struct.   ,   
   ,         -
      .

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