9de81c7273
@118370 Correct typo. @118371 Integrate changes from vendor. @118491 Show backtrace on unexpected code paths. @118494 Integrate changes from vendor. @118504 Fix sendfile(2). I had two ways of fixing it: 1. Fixing sendfile(2) itself to use VOP_GETPAGES() instead of hacking around with vn_rdwr(UIO_NOCOPY), which was suggested by ups. 2. Modify ZFS behaviour to handle this special case. Although 1 is more correct, I've choosen 2, because hack from 1 have a side-effect of beeing faster - it reads ahead MAXBSIZE bytes instead of reading page by page. This is not easy to implement with VOP_GETPAGES(), at least not for me in this very moment. Reported by: Andrey V. Elsukov <bu7cher@yandex.ru> @118525 Reorganize the code to reduce diff. @118526 This code path is expected. It is simply when file is opened with O_FSYNC flag. Reported by: kris Reported by: Michal Suszko <dry@dry.pl>
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