Pipes are not writeable while a direct write is in progress. However,
the kqueue filter got the sense of the test reversed, so fix it. Spotted by: Michael Elkins <me@sigpipe.org>
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6f451c99b3
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=65855
@ -1222,7 +1222,7 @@ filt_pipewrite(struct knote *kn, long hint)
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return (1);
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}
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kn->kn_data = wpipe->pipe_buffer.size - wpipe->pipe_buffer.cnt;
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if ((wpipe->pipe_state & PIPE_DIRECTW) == 0)
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if (wpipe->pipe_state & PIPE_DIRECTW)
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kn->kn_data = 0;
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return (kn->kn_data >= PIPE_BUF);
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