* nfs:truncate didn't zero the new area
@ 2011-07-28 0:43 才俊
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From: 才俊 @ 2011-07-28 0:43 UTC (permalink / raw)
To: linux-nfs
There is a error when using truncate in 2.6.32e.g1.create a file test,the content is:test:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa (100 a)2.use truncate(test,25),the content is:test:aaaaaaaaaaaaaaaaaaaaaaa3.use truncate(test,50),what we expect result is:test:aaaaaaaaaaaaaaaaaaaaaaa0000000000000000000000but in fact the content is:test:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaathe new part is not cleared.
I lookuped the code of nfs and nfsd,but i haven't fount the code that clear the new part of truncate.
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2011-07-28 0:43 nfs:truncate didn't zero the new area 才俊
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