Messages in this thread | | | Date | Wed, 07 Dec 2005 16:12:25 -0500 | From | Peter Staubach <> | Subject | Re: An nfs question ftruncate vs. pwrite |
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Kenny Simpson wrote:
>When a file that is opened with normal flags (O_RDWR|O_CREAT|O_TRUNC|O_LARGEFILE) is on NFS, and >it is exteded via ftruncate, the new expty pages get read back from the server before the system >call returns: > (from strace -T): >ftruncate64(3, 41943040) = 0 <0.063866> >
Is there a question in there?
If the question is whether the new empty pages get read in from the server before the ftruncate system call returns, then no, they do not. They get read in from the server as required in the normal course of future operations.
Thanx...
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