[PATCH] poll.2: Set fd to its bitwise complement to ignore
From: David Ward <hidden>
Date: 2022-05-16 02:35:26
Subsystem:
the rest · Maintainer:
Linus Torvalds
Unlike negating the fd, this works even for fd 0. It is a better fix for https://bugzilla.kernel.org/show_bug.cgi?id=79411. Signed-off-by: David Ward <redacted> --- man2/poll.2 | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/man2/poll.2 b/man2/poll.2
index 205468f3e..cd65bc6e8 100644
--- a/man2/poll.2
+++ b/man2/poll.2@@ -83,10 +83,9 @@ field returns zero. (This provides an easy way of ignoring a file descriptor for a single .BR poll () -call: simply negate the +call: simply set the .I fd -field. -Note, however, that this technique can't be used to ignore file descriptor 0.) +field to its bitwise complement.) .PP The field .I events