| #!/bin/ksh |
| |
| # |
| # This file and its contents are supplied under the terms of the |
| # Common Development and Distribution License ("CDDL"), version 1.0. |
| # You may only use this file in accordance with the terms of version |
| # 1.0 of the CDDL. |
| # |
| # A full copy of the text of the CDDL should have accompanied this |
| # source. A copy of the CDDL is also available via the Internet at |
| # http://www.illumos.org/license/CDDL. |
| # |
| |
| # |
| # Copyright (c) 2012, 2016 by Delphix. All rights reserved. |
| # |
| |
| . $STF_SUITE/include/libtest.shlib |
| . $STF_SUITE/tests/functional/nopwrite/nopwrite.shlib |
| |
| # |
| # Description: |
| # Verify that nopwrite works regardless of recsize property setting. |
| # |
| # Strategy: |
| # 1. Create an origin fs that's suitable to make nopwrite clones. |
| # 2. For each possible recsize, create a clone that inherits the compress and |
| # checksum, and verify overwriting the origin file consumes no new space. |
| # |
| |
| verify_runnable "global" |
| origin="$TESTPOOL/$TESTFS" |
| log_onexit cleanup |
| |
| function cleanup |
| { |
| datasetexists $origin && destroy_dataset $origin -R |
| log_must zfs create -o mountpoint=$TESTDIR $origin |
| } |
| |
| log_assert "nopwrite updates file metadata correctly" |
| |
| log_must zfs set compress=on $origin |
| log_must zfs set checksum=sha256 $origin |
| dd if=/dev/urandom of=$TESTDIR/file bs=1024k count=$MEGS conv=notrunc \ |
| >/dev/null 2>&1 || log_fail "dd into $TESTDIR/file failed." |
| zfs snapshot $origin@a || log_fail "zfs snap failed" |
| log_must zfs clone $origin@a $origin/clone |
| |
| for rs in 512 1024 2048 4096 8192 16384 32768 65536 131072 ; do |
| log_must zfs set recsize=$rs $origin/clone |
| dd if=/$TESTDIR/file of=/$TESTDIR/clone/file bs=1024k count=$MEGS \ |
| conv=notrunc >/dev/null 2>&1 || log_fail "dd failed." |
| log_must verify_nopwrite $origin $origin@a $origin/clone |
| done |
| |
| log_pass "nopwrite updates file metadata correctly" |