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From: mindentropy@gmail.com (mindentropy)
To: kernelnewbies@lists.kernelnewbies.org
Subject: Regarding mmap synchronization.
Date: Sun, 18 Sep 2011 23:32:30 +0530	[thread overview]
Message-ID: <201109182332.30556.mindentropy@gmail.com> (raw)

Hi,

  I have mmaped a circular queue buffer created in the kernel.  Now I want to 
mmap the read and write pointers in the queue but I am not sure how to 
synchronize the access of the pointers between the kernel and userspace(while 
checking sizes for overflow and underflow). How should I go about doing this?

Thanks.

             reply	other threads:[~2011-09-18 18:02 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-18 18:02 mindentropy [this message]
2011-09-18 18:49 ` Regarding mmap synchronization Dave Hylands
2011-09-18 19:12   ` mindentropy
2011-09-18 19:56     ` Dave Hylands

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