Feature #9328: [PATCH] avoid redundant F_GETFD when O_CLOEXEC works

• Status: Closed
• Assignee: -
• Target version: -

[normalperson (Eric Wong)]

It is pointless to check if O_CLOEXEC works after every single
open() call. If the kernel supports O_CLOEXEC for one open(), it is
supported for every open() syscall.

I mainly made this to make my strace less noisy. Also similar changes to socket/socketpair/fstat planned.

Pull request:

The following changes since commit d6c7ab9ffeff31fb5a49776ab74a61b478344107:

• 2013-12-31 (2013-12-30 19:48:05 +0000)

are available in the git repository at:

git://bogomips.org/ruby.git check_cloexec_once

for you to fetch changes up to 699cafe0aea5a92c82e9f8ded0d7213666ffb1d3:

avoid redundant F_GETFD when O_CLOEXEC works (2013-12-30 22:02:14 +0000)

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Eric Wong (1):
avoid redundant F_GETFD when O_CLOEXEC works

io.c | 27 ++++++++++++++++++++++++++-
1 file changed, 26 insertions(+), 1 deletion(-)

[akr (Akira Tanaka)]

• Status changed from Open to Closed
• % Done changed from 0 to 100

Applied in changeset r44640.

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• io.c: Test O_CLOEXEC only once.
  Patch by Eric Wong. [ruby-core:59419] [Feature #9328]