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From 31568ef6a91b0f441c64fe79f7fa94a32be4dc97 Mon Sep 17 00:00:00 2001
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From: Karel Zak <kzak@redhat.com>
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Date: Tue, 7 Oct 2014 12:12:39 +0200
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Subject: [PATCH 131/135] flock: zero timeout is valid
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This patch reverts Sami's "timeout cannot be zero", introduced
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in commit 605325b23b36238c8f3ae165e37cab9064553cf7.
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The --timeout 0 has been originally interpreted as --nonblock. The
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patch also add hint about this behavior to the man page.
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Upstream: http://github.com/karelzak/util-linux/commit/c4604c38b503c8c46e50fc2048ebbcbcfcad3802
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Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=1455398
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Signed-off-by: Karel Zak <kzak@redhat.com>
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---
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sys-utils/flock.1 | 4 +++-
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sys-utils/flock.c | 2 --
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2 files changed, 3 insertions(+), 3 deletions(-)
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diff --git a/sys-utils/flock.1 b/sys-utils/flock.1
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index b28526f69..d5e85e082 100644
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--- a/sys-utils/flock.1
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+++ b/sys-utils/flock.1
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@@ -83,7 +83,9 @@ Fail if the lock cannot be acquired within
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Decimal fractional values are allowed.
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See the
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.I \-E
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-option for the exit code used.
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+option for the exit code used. The zero number of
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+.IR seconds
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+is interpreted as \fB\-\-nonblock\fR.
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.TP
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\fB\-o\fP, \fB\-\-close\fP
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Close the file descriptor on which the lock is held before executing
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diff --git a/sys-utils/flock.c b/sys-utils/flock.c
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index 18625a029..7dad46af0 100644
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--- a/sys-utils/flock.c
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+++ b/sys-utils/flock.c
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@@ -175,8 +175,6 @@ int main(int argc, char *argv[])
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have_timeout = 1;
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strtotimeval_or_err(optarg, &timeout.it_value,
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_("invalid timeout value"));
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- if (timeout.it_value.tv_sec + timeout.it_value.tv_usec == 0)
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- errx(EX_USAGE, _("timeout cannot be zero"));
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break;
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case 'E':
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conflict_exit_code = strtos32_or_err(optarg,
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--
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2.13.6
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