Adding upstream version 8.30.upstream/8.30upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 97 insertions, 0 deletions

diff --git a/tests/dd/nocache_eof.sh b/tests/dd/nocache_eof.sh
new file mode 100755
index 0000000..1804e5b
--- /dev/null
+++ b/tests/dd/nocache_eof.sh
@@ -0,0 +1,97 @@
+#!/bin/sh
+# Ensure dd invalidates to EOF when appropriate
+
+# Copyright (C) 2017-2018 Free Software Foundation, Inc.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ dd
+require_strace_ fadvise64,fadvise64_64
+
+head -c1234567 /dev/zero > in.f || framework_failure_
+
+# Check basic operation or skip.
+# We could check for 'Operation not supported' error here,
+# but that was seen to be brittle. HPUX returns ENOTTY for example.
+# So assume that if this basic operation fails, it's due to lack
+# of support by the system.
+dd if=in.f iflag=nocache count=0 ||
+  skip_ 'this file system lacks support for posix_fadvise()'
+
+strace_dd() {
+  strace -o dd.strace -e fadvise64,fadvise64_64 dd status=none "$@" || fail=1
+}
+
+advised_to_eof() {
+  grep -F ' 0, POSIX_FADV_DONTNEED' dd.strace >/dev/null
+}
+
+# The commented fadvise64 calls are what are expected with
+# a 4KiB page size and 128KiB IO_BUFSIZE.
+
+strace_dd if=in.f of=out.f bs=1M oflag=nocache,sync
+#fadvise64(1, 0, 1048576, POSIX_FADV_DONTNEED) = 0
+#fadvise64(1, 1048576, 131072, POSIX_FADV_DONTNEED) = 0
+#fadvise64(1, 1179648, 0, POSIX_FADV_DONTNEED) = 0
+advised_to_eof || fail=1
+
+strace_dd if=in.f count=0 iflag=nocache
+#fadvise64(0, 0, 0, POSIX_FADV_DONTNEED) = 0
+advised_to_eof || fail=1
+
+strace_dd if=in.f of=/dev/null iflag=nocache skip=10 count=300
+#fadvise64(0, 5120, 131072, POSIX_FADV_DONTNEED) = 0
+#fadvise64(0, 136192, 22528, POSIX_FADV_DONTNEED) = 0
+returns_ 1 advised_to_eof || fail=1
+
+strace_dd if=in.f of=/dev/null iflag=nocache bs=1M count=3000
+#fadvise64(0, 0, 1048576, POSIX_FADV_DONTNEED) = 0
+#fadvise64(0, 1048576, 131072, POSIX_FADV_DONTNEED) = 0
+#fadvise64(0, 1179648, 0, POSIX_FADV_DONTNEED) = 0
+advised_to_eof || fail=1
+
+strace_dd if=in.f of=/dev/null bs=1M count=1 iflag=nocache
+#fadvise64(0, 0, 1048576, POSIX_FADV_DONTNEED) = 0
+returns_ 1 advised_to_eof || fail=1
+
+strace_dd if=in.f of=out.f bs=1M iflag=nocache oflag=nocache,sync
+#fadvise64(0, 0, 1048576, POSIX_FADV_DONTNEED) = 0
+#fadvise64(1, 0, 1048576, POSIX_FADV_DONTNEED) = 0
+#fadvise64(0, 1048576, 131072, POSIX_FADV_DONTNEED) = 0
+#fadvise64(1, 1048576, 131072, POSIX_FADV_DONTNEED) = 0
+#fadvise64(0, 1179648, 0, POSIX_FADV_DONTNEED) = 0
+#fadvise64(1, 1179648, 0, POSIX_FADV_DONTNEED) = 0
+advised_to_eof || fail=1
+
+# Ensure sub page size offsets are handled.
+# I.e., only page aligned offsets are sent to fadvise.
+if ! strace -o dd.strace -e fadvise64,fadvise64_64 dd status=none \
+ if=in.f of=out.f bs=1M oflag=direct seek=512 oflag=seek_bytes; then
+  warn_ '512 byte aligned O_DIRECT is not supported on this (file) system'
+  # The current file system may not support O_DIRECT,
+  # or older XFS had a page size alignment requirement
+else
+  #The first call is redundant but inconsequential
+  #fadvise64(1, 1048576, 0, POSIX_FADV_DONTNEED) = 0
+  #fadvise64(1, 1048576, 0, POSIX_FADV_DONTNEED) = 0
+  advised_to_eof || fail=1
+
+  strace_dd if=in.f of=out.f bs=1M oflag=direct
+  #fadvise64(1, 1048576, 0, POSIX_FADV_DONTNEED) = 0
+  #fadvise64(1, 1048576, 0, POSIX_FADV_DONTNEED) = 0
+  advised_to_eof || fail=1
+fi
+
+Exit $fail