Messages in this thread | | | Date | Sun, 27 Oct 2002 20:54:00 -0500 (EST) | From | Alexander Viro <> | Subject | Re: [PATCH] unified SysV and Posix mqueues as FS |
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On Sun, 27 Oct 2002, Peter Waechtler wrote:
> Alexander Viro schrieb: > > > > On Sun, 27 Oct 2002, Peter Waechtler wrote: > > > > > I applied the patch from Jakub against 2.5.44 > > > There are still open issues but it's important to get this in before > > > feature freeze. > > > > > > While you can implement Posix mqueues in userland (Irix is doing this > > > with fcntl(fd,F_SETLKW,) and shmem) a kernel implementation has some advantages: > > > > *thud* > > > > ioctls on _directories_, of all things? > > Parden? Where are directories used? > create a file, give it a size, mmap it and serialize access to it with locks. > That's all.
Check your file_operations for root directory.
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