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authorJens Axboe <axboe@suse.de>2006-07-10 11:00:01 +0200
committerJens Axboe <axboe@suse.de>2006-07-10 11:00:01 +0200
commitaadd06e5c56b9ff5117ec77e59eada43dc46e2fc (patch)
tree16da42148eab5ebcfc821fcedd0541f35a2c318b /Documentation/input/ff.txt
parentb3cf257623fabd8f1ee6700a6d328cc1c5da5a1d (diff)
[PATCH] splice: fix problems with sys_tee()
Several issues noticed/fixed: - We cannot reliably block in link_pipe() while holding both input and output mutexes. So do preparatory checks before locking down both mutexes and doing the link. - The ipipe->nrbufs vs i check was bad, because we could have dropped the ipipe lock in-between. This causes us to potentially look at unknown buffers if we were racing with someone else reading this pipe. Signed-off-by: Jens Axboe <axboe@suse.de>
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