Messages in this thread | | | Date | Thu, 28 Oct 2004 16:20:38 -0500 | From | Lei Yang <> | Subject | Re: set blksize of block device |
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Denis Vlasenko wrote:
>On Thursday 28 October 2004 05:25, Lei Yang wrote: > > >>Or in other words, is there generic routines for block devices such that >>we could: >> >>get (set) block size of a block device; >>read an existing block (e.g. block 4); >>write an existing block (e.g. block 5); >> >> > >Can you stick to "reply below quote" style please? > > OK
> > >>>If nobody could answer this question, what about another one? Is there >>>a system call or a kernel interface that would allow me to write a >>> >>> > >Can you use read, write and seek system calls? >-- >vda > > > > Not really, as I've explained, I want to do all these stuff in kernel space. More specifically, I want to write a newbie kernel module. In this module, I'll do something with a raw block device (with no filesystem). For example, I want to do block I/O operations on ramdisk, and I want to set the block size of ramdisk to whatever value I want (power of 2 of course).
Any comments?
Thanks, Lei
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