avoid uname() for pipe size modification checks
authorEric Wong <normalperson@yhbt.net>
Wed, 7 Mar 2012 10:27:46 +0000 (10:27 +0000)
committerEric Wong <normalperson@yhbt.net>
Wed, 7 Mar 2012 10:28:43 +0000 (10:28 +0000)
commitf2a1b8e5f3b9b9ba0c8593bab6d58def3b75e6a4
tree610866b6a7982eb5544638b3db4e461b361d35ec
parenta2ae924fb1c372cc559a59feca40780a9a37ba33
avoid uname() for pipe size modification checks

The uname comparison is fragile and we can better
detect this during the Init_* function by just using
a pipe.
ext/io_splice/io_splice_ext.c