33 lines
1.1 KiB
Diff
33 lines
1.1 KiB
Diff
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Index: xen-unstable/tools/examples/block
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===================================================================
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--- xen-unstable.orig/tools/examples/block
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+++ xen-unstable/tools/examples/block
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@@ -259,10 +259,13 @@ case "$command" in
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;;
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file)
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+ lo_flags=""
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+ [ "${mode/S}" = "$mode" ] || lo_flags="-y"
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# Canonicalise the file, for sharing check comparison, and the mode
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# for ease of use here.
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file=$(readlink -f "$p") || fatal "$p does not exist."
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mode=$(canonicalise_mode "$mode")
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+ [ "$mode" = "r" ] && lo_flags="$lo_flags -r"
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claim_lock "block"
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@@ -370,11 +373,11 @@ mount it read-write in a guest domain."
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fatal 'Failed to find an unused loop device'
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fi
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- losetup "$loopdev" "$file" && losetup_failure="" && break
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+ losetup $lo_flags "$loopdev" "$file" && losetup_failure="" && break
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done
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if [ "$losetup_failure" ]
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then
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- fatal 'losetup $loopdev $file'
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+ fatal 'losetup $lo_flags $loopdev $file'
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fi
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xenstore_write "$XENBUS_PATH/node" "$loopdev"
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