Messages in this thread | | | Date | Tue, 22 Jan 2002 16:40:41 +0100 | Subject | Re: 2.4.17:Increase number of anonymous filesystems beyond 256? | From | Trond Myklebust <> |
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>>>>> " " == Rainer Krienke <krienke@uni-koblenz.de> writes:
> Can somebody explain the major difference between both > solutions? Why did you Pete base your patch on 4 new major > device numbers whereas Andis patch did not need them? Are there > any major drawbacks involved not doing so?
Both Andi and Pete solve the problem of the limit on the number of available reserved ports.
In addition, Pete fixes a second problem. There is a limit to the number of 'unnamed' devices that the kernel can support (see the function get_unnamed_dev()). Since each NFS mount 'eats' one such device, this sets an upper limit of 255 simultaneous of NFS mounts whether or not we have enough reserved ports.
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