Messages in this thread | | | Date | Wed, 22 Mar 2000 23:51:07 +0100 | From | Jamie Lokier <> | Subject | Re: mmap_file common case? |
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Jeff Garzik wrote: > When dealing with files it is common to mmap all of a file, or up to XXX > bytes of a file. Is there any way to reduce the number of syscalls for > this operation from 3 to 1? > > fd = open(...); > stat(...); /* get size for mmap */ > addr = mmap(...);
In principle it's possible to write a device driver, which provides one ioctl: "do the following sequence of syscalls".
-- Jamie
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