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    Linux,      
.

      : "  -
 ,         
    .   ,   
    ,     !"
 ,      ,  -
,       .    -
      , ,  ,  
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,         test-and-
set (  ),     
      ,    
.     .

  

       -
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     .    
          
     ,   ,  
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 .  ,       
   (,       , -
     ),     -
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 ,      ,  
  ,        ,  -
 (pseudo-concurrency).

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   (true concurrency).     -
   ,      
      .   
   .

 .    ,   
 ,  ,     .

    .     softirq
         , 
    .

  .     ,   , -
    ,    ,  -
   .

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