Re: Changes in vm_operations_struct 2.2.x => 2.4.x

[Thomas Hofer <th@monochrom.at>]

Martin Maletinsky wrote (Donnerstag,  9. August 2001 09:02):
> My module allocates a block of memory, and exports that block to user
> space processes, by registering as a character device and
> implementing a mmap file operation, so that user space processes can
> map that memory block into their virtual address space by calling
> mmap().

Would it be possible to do this with shared memory (shmget/shmat)? 
What's the advantage of making a device and mmaping it? Sounds 
more complicated. (I did only user-space programs as yet, so forgive me 
my naivity)

Thomas.
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