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31 lines
1.3 KiB
Diff
31 lines
1.3 KiB
Diff
From 0083541593e05704961db229aefea0542446c07c Mon Sep 17 00:00:00 2001
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From: Will Thompson <wjt@endlessm.com>
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Date: Fri, 15 Jun 2018 18:34:04 +0100
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Subject: [PATCH] grub-fs-tester: Fix losetup race
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If something else on the system is using loopback devices, then the
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device that's free at the call to `losetup -f` may not be free in the
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following call to try to use it. Instead, find and use the first free
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loopback device in a single call to losetup.
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Signed-off-by: Will Thompson <wjt@endlessm.com>
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Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
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---
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tests/util/grub-fs-tester.in | 3 +--
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1 file changed, 1 insertion(+), 2 deletions(-)
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diff --git a/tests/util/grub-fs-tester.in b/tests/util/grub-fs-tester.in
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index 26bd57a8027..ef65fbc9341 100644
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--- a/tests/util/grub-fs-tester.in
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+++ b/tests/util/grub-fs-tester.in
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@@ -616,9 +616,8 @@ for LOGSECSIZE in $(range "$MINLOGSECSIZE" "$MAXLOGSECSIZE" 1); do
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mkdir -p "$MNTPOINTRO"
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for i in $(range 0 $((NDEVICES-1)) 1); do
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dd if=/dev/zero of="$FSIMAGEP${i}.img" count=1 bs=1 seek=$((DISKSIZE-1)) &> /dev/null
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- LODEVICE="$(losetup -f)"
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+ LODEVICE=$(losetup --find --show "$FSIMAGEP${i}.img")
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LODEVICES="$LODEVICES $LODEVICE"
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- losetup "$LODEVICE" "$FSIMAGEP${i}.img"
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if test "$i" = 0; then
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MOUNTDEVICE="$LODEVICE"
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fi
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