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From: horserivers@gmail.com (horseriver)
To: kernelnewbies@lists.kernelnewbies.org
Subject: internel implemention of file operation
Date: Fri, 11 Jan 2013 05:14:43 +0800	[thread overview]
Message-ID: <20130110211443.GA4817@debian.localdomain> (raw)
In-Reply-To: <CAAYFAvpB=tG-4L_M5c3myFAbaJoWjEWSfLEUYpankcD70NToEg@mail.gmail.com>

hi:

  these two wayes of operating one file :

  1.use open/write interface call .

  2.mmap this file into memory , then access this memory area and do r/w . 

  what is the essential difference between this teo wayes?

thanks!

  parent reply	other threads:[~2013-01-10 21:14 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-01-03  6:59 internel implemention of file operation horseriver
2013-01-03  7:18 ` Rajat Sharma
2013-01-03  7:31   ` horseriver
2013-01-03  7:46     ` Rajat Sharma
2013-01-03 10:09       ` horseriver
2013-01-03 10:31         ` Rajat Sharma
2013-01-10 21:14   ` horseriver [this message]
2013-01-11  7:09     ` Rajat Sharma
2013-01-10 22:01       ` horseriver
2013-01-11  9:06         ` Rajat Sharma
  -- strict thread matches above, loose matches on Subject: below --
2013-02-01 18:09 dspjmt

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