Jeff Mahoney
2013-Oct-29 19:26 UTC
[patch 0/3] xfstests: for btrfs publishing/export patchset (v4)
These are the tests that Josef requested accompany the submission of the btrfs publishing/export patchset[1]. 021: Test new global metadata reservation ioctl 022: Test new sysfs exporting of allocation and device membership 023: Test new sysfs exporting of feature bits 024: Test setting/clearing feature bits via ioctl 025: Test setting/clearing feature bits via sysfs As part of the ioctl testing, I added a helper that can be extended easily to export simple information via ioctl. This means that the tests can be independent of btrfsprogs version or its output formatting. V2: - Used next numbers in sequence - Better commit messages - Fixed handling of the missing feature cases - Fixed issues raised in Josef''s review V3: - Fixed missing output in btrfs/023 when the ioctls arent''t supported - Fixed missing umount introduced in V2 V4: - I was running the tests directly, not through check and didn''t catch these: - Fixed incorrect output from 022 while running under check - Added tests to group file -Jeff [1] http://thread.gmane.org/gmane.comp.file-systems.btrfs/29307 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Jeff Mahoney
2013-Oct-29 19:26 UTC
[patch 1/3] xfstests: btrfs/021: test global metadata reservation reporting
Btrfs can now report the size of the global metadata reservation
via icotl and sysfs.
This test confirms that we get sane results on an empty file system.
ENOTTY and missing /sys/fs/btrfs/<fsid>/allocation are not considered
failures.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
---
common/rc | 6 +++
src/Makefile | 3 +
src/btrfs_ioctl_helper.c | 90 +++++++++++++++++++++++++++++++++++++++++++++++
tests/btrfs/021 | 88 +++++++++++++++++++++++++++++++++++++++++++++
tests/btrfs/021.out | 2 +
tests/btrfs/group | 1
6 files changed, 189 insertions(+), 1 deletion(-)
create mode 100644 src/btrfs_ioctl_helper.c
create mode 100755 tests/btrfs/021
create mode 100644 tests/btrfs/021.out
--- a/common/rc 2013-10-28 16:47:03.000000000 -0400
+++ b/common/rc 2013-10-29 15:06:39.548830211 -0400
@@ -65,6 +65,12 @@ _btrfs_get_subvolid()
$BTRFS_UTIL_PROG sub list $mnt | grep $name | awk ''{ print $2
}''
}
+_btrfs_get_fsid()
+{
+ local dev=$1
+ $BTRFS_UTIL_PROG filesystem show $dev|awk ''/uuid:/ {print
$NF}''
+}
+
# Prints the md5 checksum of a given file
_md5_checksum()
{
--- a/src/Makefile 2013-10-28 16:47:03.000000000 -0400
+++ b/src/Makefile 2013-10-28 16:47:05.000000000 -0400
@@ -18,7 +18,8 @@ LINUX_TARGETS = xfsctl bstat t_mtab getd
locktest unwritten_mmap bulkstat_unlink_test t_stripealign \
bulkstat_unlink_test_modified t_dir_offset t_futimens t_immutable \
stale_handle pwrite_mmap_blocked t_dir_offset2 seek_sanity_test \
- seek_copy_test t_readdir_1 t_readdir_2 fsync-tester nsexec
+ seek_copy_test t_readdir_1 t_readdir_2 fsync-tester nsexec \
+ btrfs_ioctl_helper
SUBDIRS
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ b/src/btrfs_ioctl_helper.c 2013-10-29 15:06:39.548830211 -0400
@@ -0,0 +1,90 @@
+#include <sys/ioctl.h>
+#include <stdio.h>
+#include <sys/fcntl.h>
+#include <errno.h>
+#include <string.h>
+#include <stdint.h>
+#include <unistd.h>
+
+#ifndef BTRFS_IOCTL_MAGIC
+#define BTRFS_IOCTL_MAGIC 0x94
+#endif
+
+#ifndef BTRFS_IOC_GLOBAL_RSV
+#define BTRFS_IOC_GLOBAL_RSV _IOR(BTRFS_IOCTL_MAGIC, 20, uint64_t)
+#endif
+
+static int global_rsv_ioctl(int fd, int argc, char *argv[])
+{
+ uint64_t reserved;
+ int ret = ioctl(fd, BTRFS_IOC_GLOBAL_RSV, &reserved);
+ if (ret)
+ return -errno;
+
+ printf("%llu\n", (unsigned long long)reserved);
+ return 0;
+}
+
+#define IOCTL_TABLE_ENTRY(_ioctl_name, _handler) \
+ { .name = #_ioctl_name, .ioctl_cmd = BTRFS_IOC_##_ioctl_name, \
+ .handler = _handler, }
+
+struct ioctl_table_entry {
+ const char *name;
+ unsigned ioctl_cmd;
+ int (*handler)(int fd, int argc, char *argv[]);
+};
+
+static struct ioctl_table_entry ioctls[] = {
+ IOCTL_TABLE_ENTRY(GLOBAL_RSV, global_rsv_ioctl),
+};
+
+int
+main(int argc, char *argv[])
+{
+ int fd;
+ int ret;
+ struct ioctl_table_entry *entry = NULL;
+ int i;
+
+ if (argc < 3) {
+ fprintf(stderr,
+ "usage: %s <fs mount point> <ioctl name> [args..]\n",
+ argv[0]);
+ return 1;
+ }
+
+ fd = open(argv[1], O_RDONLY|O_DIRECTORY);
+ if (fd < 0) {
+ perror(argv[1]);
+ return 1;
+ }
+
+ for (i = 0; i < (sizeof(ioctls)/sizeof(ioctls[0])); i++) {
+ if (strcmp(argv[2], ioctls[i].name) == 0) {
+ entry = &ioctls[i];
+ break;
+ }
+ }
+
+ if (!entry) {
+ fprintf(stderr, "ERROR: unknown ioctl %s\n", argv[2]);
+ close(fd);
+ return 1;
+ }
+
+ ret = entry->handler(fd, argc - 3, argv + 3);
+ if (ret == -ENOTTY) {
+ printf("Not implemented.\n");
+ close(fd);
+ return 0;
+ } else if (ret) {
+ fprintf(stderr, "ERROR: %s failed: %s\n",
+ entry->name, strerror(-ret));
+ close(fd);
+ return 1;
+ }
+
+ close(fd);
+ return 0;
+}
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ b/tests/btrfs/021 2013-10-28 16:47:05.000000000 -0400
@@ -0,0 +1,88 @@
+#!/bin/bash
+# FA QA Test No. 021
+#
+# Test global metadata reservation reporting
+#
+# 1) Create empty file system
+# 2) Call the BTRFS_IOC_GLOBAL_RSV ioctl and confirm it is 0 < x < 10MB
+# 3) Read the /sys/fs/btrfs/<fsid>/allocation/global_rsv_reserved file
+# and confirm the value is 0 < x < 10 MB
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2013 SUSE, All Rights Reserved.
+#
+# 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.
+#
+# This program is distributed in the hope that it would 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, write the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+#-----------------------------------------------------------------------
+
+seq=$(basename $0)
+seqres=$RESULT_DIR/$seq
+echo "== QA output created by $seq"
+
+here=$(pwd)
+tmp=/tmp/$$
+status=1
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter.btrfs
+
+_supported_fs btrfs
+_supported_os Linux
+_require_scratch
+
+_scratch_mkfs > /dev/null 2>&1
+_scratch_mount
+
+# Check to see if the reservation is 0 < x <= 10MB
+# At the time of this writing, it should always be exactly 4 MB
+# but that is an implementation detail subject to change.
+check_reserved() {
+ reserved="$2"
+ method="$3"
+ if [ "$1" != 0 ]; then
+ echo "$method: failed: $reserved"
+ exit 1
+ fi
+ if [ "$reserved" = "Not implemented." ]; then
+ echo "Skipping ioctl test. Not implemented." >> $seqres.full
+ return
+ fi
+ if [ -n "$(echo $reserved | tr -d 0-9)" ]; then
+ echo "ERROR: numerical value expected (got $reserved)"
+ exit 1
+ fi
+ if [ "$reserved" -le 0 -o \
+ "$reserved" -gt "$(( 10 * 1024 * 1024 ))" ]; then
+ echo "$method: out of range: $reserved."
+ exit
+ fi
+}
+
+# ioctl
+reserved="$(src/btrfs_ioctl_helper $SCRATCH_MNT GLOBAL_RSV
2>&1)"
+check_reserved $? "$reserved" "ioctl"
+
+# sysfs
+# If this directory is here, the files must be here as well
+SYSFS_PREFIX="/sys/fs/btrfs/$(_btrfs_get_fsid
$SCRATCH_DEV)/allocation"
+if [ -d "$SYSFS_PREFIX" ]; then
+ reserved="$(cat $SYSFS_PREFIX/global_rsv_reserved 2>&1)"
+ check_reserved $? "$reserved" "sysfs:reserved"
+ size="$(cat $SYSFS_PREFIX/global_rsv_size 2>&1)"
+ check_reserved $? "$size" "sysfs:size"
+fi
+
+echo "Silence is golden"
+status=0
+exit
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ b/tests/btrfs/021.out 2013-10-29 14:44:42.155197193 -0400
@@ -0,0 +1,2 @@
+== QA output created by 021
+Silence is golden
--- a/tests/btrfs/group 2013-10-25 17:22:07.000000000 -0400
+++ b/tests/btrfs/group 2013-10-29 15:07:23.292109479 -0400
@@ -23,3 +23,4 @@
018 auto quick
019 auto quick
020 auto quick
+021 auto quick
_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs
Jeff Mahoney
2013-Oct-29 19:26 UTC
[patch 2/3] xfstests: btrfs/022: test sysfs exports of allocation and device membership info
This tests the sysfs publishing for btrfs allocation and device
membership info under a number of different layouts, similar to the
btrfs replace test. We test the allocation files only for existence and
that they contain numerical values. We test the device membership
by mapping the devices used to create the file system to sysfs paths
and matching them against the paths used for the device membership
symlinks.
Since this is a new feature, it passes on kernels without
a /sys/fs/btrfs/<fsid> directory.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
---
common/config | 1
tests/btrfs/022 | 190 ++++++++++++++++++++++++++++++++++++++++++++++++++++
tests/btrfs/022.out | 2
tests/btrfs/group | 1
4 files changed, 194 insertions(+)
create mode 100755 tests/btrfs/022
create mode 100644 tests/btrfs/022.out
--- a/common/config 2013-10-29 15:06:44.556749046 -0400
+++ b/common/config 2013-10-29 15:07:27.952031225 -0400
@@ -209,6 +209,7 @@ case "$HOSTOS" in
export MKFS_UDF_PROG="`set_prog_path mkudffs`"
export MKFS_BTRFS_PROG="`set_btrfs_mkfs_prog_path_with_opts`"
export BTRFS_UTIL_PROG="`set_prog_path btrfs`"
+ export UDEVADM_PROG="`set_prog_path udevadm`"
export BTRFS_SHOW_SUPER_PROG="`set_prog_path
btrfs-show-super`"
export XFS_FSR_PROG="`set_prog_path xfs_fsr`"
export MKFS_NFS_PROG="false"
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ b/tests/btrfs/022 2013-10-29 15:07:27.980030752 -0400
@@ -0,0 +1,190 @@
+#! /bin/bash
+# FS QA Test No. 022
+#
+# Test of the btrfs sysfs publishing
+#
+#-----------------------------------------------------------------------
+# Copyright (C) 2013 SUSE. All rights reserved.
+#
+# 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.
+#
+# This program is distributed in the hope that it would 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, write the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+#
+#-----------------------------------------------------------------------
+#
+
+seq=`basename $0`
+seqres=$RESULT_DIR/$seq
+echo "== QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+
+# real QA test starts here
+_need_to_be_root
+_supported_fs btrfs
+_require_scratch
+_require_scratch_dev_pool
+_require_command $UDEVADM_PROG
+
+rm -f $seqres.full
+rm -f $tmp.tmp
+
+check_file() {
+ local file=$1
+ base="$(echo "$file" | sed -e
''s#/sys/fs/btrfs/[0-9a-f-][0-9a-f-]*/##'')"
+ if [ ! -f "$file" ]; then
+ echo "$base missing."
+ return 0
+ else
+ value="$(cat $file)"
+ if [ -n "$(echo $value | tr -d 0-9)" ]; then
+ echo "ERROR: $base: numerical value expected" \
+ "(got $value)"
+ return 0
+ fi
+ fi
+ return 1
+}
+
+check_chunk() {
+ path=$1
+ mkfs_options=$2
+ error=false
+
+ chunktype=$(basename $path)
+ if [ ! -d "$path" ]; then
+ echo "No $chunktype directory."
+ exit 1
+ fi
+
+ for file in bytes_may_use bytes_pinned bytes_reserved bytes_used \
+ disk_total flags total_bytes total_bytes_pinned; do
+ if check_file "$path/$file"; then
+ error=true
+ fi
+ done
+
+ if [ "$chunktype" = "data" -o "$chunktype" =
"mixed" ]; then
+ opt="-d"
+ elif [ "$chunktype" = "metadata" -o "$chunktype"
= "system" ]; then
+ opt="-m"
+ fi
+
+ profile=$(echo $mkfs_options | sed -e "s/.*$opt
\([[:alnum:]]*\).*/\1/")
+ if [ ! -d "$path/$profile" ]; then
+ echo "No $profile dir for $chunktype"
+ exit 1
+ fi
+
+ for file in total_bytes used_bytes; do
+ if check_file $path/$profile/$file; then
+ error=true
+ fi
+ done
+
+ $error && exit 1
+}
+
+check_dev_link() {
+ local dev=$1
+ DEV="/sys/$($UDEVADM_PROG info --query=path $dev)"
+ DEV="$(readlink -f $DEV)"
+ found=false
+ for link in $sysfs_base/devices/*; do
+ LINK="$(readlink -f $link)"
+ if [ "$LINK" = "$DEV" ]; then
+ found=true
+ break
+ fi
+ done
+ if ! $found; then
+ echo "Symlink for $dev missing in $sysfs_base/devices"
+ return 1
+ fi
+ return 0
+}
+
+workout()
+{
+ local mkfs_options="$1"
+ local num_devs4raid="$2"
+ local fssize
+
+ if [ "`echo $SCRATCH_DEV_POOL | wc -w`" -lt $num_devs4raid ]; then
+ echo "Skip workout $1 $2 $3 $4"
+ echo "Too few devices in SCRATCH_DEV_POOL $SCRATCH_DEV_POOL," \
+ "required: $num_devs4raid"
+ echo "Skip workout $1 $2 $3 $4" >> $seqres.full
+ echo "Too few devices in SCRATCH_DEV_POOL $SCRATCH_DEV_POOL," \
+ "required: $num_devs4raid" >> $seqres.full
+ return 0
+ fi
+
+ used_devs=$(echo $SCRATCH_DEV_POOL|tr ''\t'' ''
''| \
+ cut -d '' '' -f 1-$num_devs4raid)
+
+ _scratch_mkfs $mkfs_options $used_devs >> $seqres.full 2>&1 || \
+ _fail "mkfs failed"
+
+ _scratch_mount
+
+ # Check allocation
+ sysfs_base="/sys/fs/btrfs/$(_btrfs_get_fsid $SCRATCH_DEV)"
+
+ # Feature isn''t present for testing
+ if [ ! -d "$sysfs_base" ]; then
+ echo "Skipping sysfs test: $sysfs_base not found." \
+ >> $seqres.full
+ return
+ fi
+
+ mixed=false
+ case "$mkfs_options" in
+ *-M*)
+ mixed=true;
+ ;;
+ esac
+
+ check_chunk "$sysfs_base/allocation/system"
"$mkfs_options"
+ if $mixed; then
+ check_chunk "$sysfs_base/allocation/mixed"
"$mkfs_options"
+ else
+ check_chunk "$sysfs_base/allocation/data" "$mkfs_options"
+ check_chunk "$sysfs_base/allocation/metadata"
"$mkfs_options"
+ fi
+
+ for dev in $used_devs; do
+ check_dev_link $dev || exit 1
+ done
+
+ umount $SCRATCH_MNT > /dev/null 2>&1
+}
+
+workout "-m single -d single" 1
+workout "-m single -d single -M" 1
+workout "-m dup -d single" 1
+workout "-m dup -d dup -M" 1
+workout "-m raid0 -d raid0" 2
+workout "-m raid1 -d raid1" 2
+workout "-m raid5 -d raid5" 2
+workout "-m raid6 -d raid6" 3
+workout "-m raid10 -d raid10" 4
+
+echo "Silence is golden"
+status=0
+exit
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ b/tests/btrfs/022.out 2013-10-29 15:07:27.980030752 -0400
@@ -0,0 +1,2 @@
+== QA output created by 022
+Silence is golden
--- a/tests/btrfs/group 2013-10-29 15:07:23.292109479 -0400
+++ b/tests/btrfs/group 2013-10-29 15:09:25.545980210 -0400
@@ -24,3 +24,4 @@
019 auto quick
020 auto quick
021 auto quick
+022 auto
_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs
Jeff Mahoney
2013-Oct-29 19:26 UTC
[patch 3/3] xfstests: btrfs/023,024,025: test feature ioctl and sysfs interfaces
This tests the exporting of feature information from the kernel via
sysfs and ioctl. The first test works whether the sysfs permissions
are correct, if the information exported via sysfs matches
what the ioctls are reporting, and if they both match the on-disk
superblock''s version of the feature sets. The second and third tests
test online setting and clearing of feature bits via the sysfs and
ioctl interfaces, checking whether they match the on-disk super on
each cycle.
In every case, if the features are not present, it is not considered
a failure and a message indicating that will be dumped to the $num.full
file.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
---
common/rc | 7 +
src/btrfs_ioctl_helper.c | 89 +++++++++++++++
tests/btrfs/023 | 269 +++++++++++++++++++++++++++++++++++++++++++++++
tests/btrfs/023.out | 2
tests/btrfs/024 | 185 ++++++++++++++++++++++++++++++++
tests/btrfs/024.out | 2
tests/btrfs/025 | 178 +++++++++++++++++++++++++++++++
tests/btrfs/025.out | 2
tests/btrfs/group | 3
9 files changed, 737 insertions(+)
create mode 100755 tests/btrfs/023
create mode 100644 tests/btrfs/023.out
create mode 100755 tests/btrfs/024
create mode 100644 tests/btrfs/024.out
create mode 100755 tests/btrfs/025
create mode 100644 tests/btrfs/025.out
--- a/common/rc 2013-10-29 15:06:39.548830211 -0400
+++ b/common/rc 2013-10-29 15:07:37.975862003 -0400
@@ -71,6 +71,13 @@ _btrfs_get_fsid()
$BTRFS_UTIL_PROG filesystem show $dev|awk ''/uuid:/ {print
$NF}''
}
+_btrfs_get_feature_flags()
+{
+ local dev=$1
+ local class=$2
+ $BTRFS_SHOW_SUPER_PROG $dev | grep ^${class}_flags | awk ''{print
$NF}''
+}
+
# Prints the md5 checksum of a given file
_md5_checksum()
{
--- a/src/btrfs_ioctl_helper.c 2013-10-29 15:06:39.548830211 -0400
+++ b/src/btrfs_ioctl_helper.c 2013-10-29 15:07:37.975862003 -0400
@@ -5,6 +5,7 @@
#include <string.h>
#include <stdint.h>
#include <unistd.h>
+#include <stdlib.h>
#ifndef BTRFS_IOCTL_MAGIC
#define BTRFS_IOCTL_MAGIC 0x94
@@ -14,6 +15,21 @@
#define BTRFS_IOC_GLOBAL_RSV _IOR(BTRFS_IOCTL_MAGIC, 20, uint64_t)
#endif
+#ifndef BTRFS_IOC_GET_FEATURES
+struct btrfs_ioctl_feature_flags {
+ uint64_t compat_flags;
+ uint64_t compat_ro_flags;
+ uint64_t incompat_flags;
+};
+
+#define BTRFS_IOC_GET_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
+ struct btrfs_ioctl_feature_flags)
+#define BTRFS_IOC_SET_FEATURES _IOW(BTRFS_IOCTL_MAGIC, 57, \
+ struct btrfs_ioctl_feature_flags[2])
+#define BTRFS_IOC_GET_SUPPORTED_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
+ struct btrfs_ioctl_feature_flags[3])
+#endif
+
static int global_rsv_ioctl(int fd, int argc, char *argv[])
{
uint64_t reserved;
@@ -25,6 +41,76 @@ static int global_rsv_ioctl(int fd, int
return 0;
}
+static int get_features_ioctl(int fd, int argc, char *argv[])
+{
+ struct btrfs_ioctl_feature_flags flags;
+ int ret = ioctl(fd, BTRFS_IOC_GET_FEATURES, &flags);
+ if (ret)
+ return -errno;
+
+ printf("0x%llx 0x%llx 0x%llx\n",
+ (unsigned long long)flags.compat_flags,
+ (unsigned long long)flags.compat_ro_flags,
+ (unsigned long long)flags.incompat_flags);
+ return 0;
+}
+
+static int set_features_ioctl(int fd, int argc, char *argv[])
+{
+ struct btrfs_ioctl_feature_flags flags[2];
+ uint64_t bit, *bits, *mask;
+ if (argc != 3)
+ goto usage;
+
+ memset(flags, 0, sizeof(flags));
+
+ errno = 0;
+ bit = strtoull(argv[2], NULL, 10);
+ if (errno)
+ goto usage;
+
+ if (strcmp(argv[1], "compat") == 0) {
+ mask = &flags[0].compat_flags;
+ bits = &flags[1].compat_flags;
+ } else if (strcmp(argv[1], "compat_ro") == 0) {
+ mask = &flags[0].compat_ro_flags;
+ bits = &flags[1].compat_ro_flags;
+ } else if (strcmp(argv[1], "incompat") == 0) {
+ mask = &flags[0].incompat_flags;
+ bits = &flags[1].incompat_flags;
+ } else
+ goto usage;
+
+ *mask |= bit;
+
+ if (strcmp(argv[0], "set") == 0)
+ *bits |= bit;
+
+ return ioctl(fd, BTRFS_IOC_SET_FEATURES, &flags);
+usage:
+ fprintf(stderr, "usage: SET_FEATURES <set|clear>
<compat|compat_ro|incompat> <base-10 bitmask>\n");
+ return -EINVAL;
+}
+
+static int get_supported_features_ioctl(int fd, int argc, char *argv[])
+{
+ struct btrfs_ioctl_feature_flags flags[3];
+ int ret;
+ int i;
+
+ ret = ioctl(fd, BTRFS_IOC_GET_SUPPORTED_FEATURES, &flags);
+ if (ret)
+ return -errno;
+
+ for (i = 0; i < 3; i++)
+ printf("0x%llx 0x%llx 0x%llx ",
+ (unsigned long long)flags[i].compat_flags,
+ (unsigned long long)flags[i].compat_ro_flags,
+ (unsigned long long)flags[i].incompat_flags);
+
+ printf("\n");
+ return 0;
+}
#define IOCTL_TABLE_ENTRY(_ioctl_name, _handler) \
{ .name = #_ioctl_name, .ioctl_cmd = BTRFS_IOC_##_ioctl_name, \
.handler = _handler, }
@@ -37,6 +123,9 @@ struct ioctl_table_entry {
static struct ioctl_table_entry ioctls[] = {
IOCTL_TABLE_ENTRY(GLOBAL_RSV, global_rsv_ioctl),
+ IOCTL_TABLE_ENTRY(GET_FEATURES, get_features_ioctl),
+ IOCTL_TABLE_ENTRY(SET_FEATURES, set_features_ioctl),
+ IOCTL_TABLE_ENTRY(GET_SUPPORTED_FEATURES, get_supported_features_ioctl),
};
int
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ b/tests/btrfs/023 2013-10-29 15:07:37.975862003 -0400
@@ -0,0 +1,269 @@
+#!/bin/bash
+# FA QA Test No. 023
+#
+# Test online feature publishing
+#
+# This test doesn''t test the changing of features. It does test that
+# the proper publishing bits and permissions match up with
+# the expected values.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2013 SUSE, All Rights Reserved.
+#
+# 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.
+#
+# This program is distributed in the hope that it would 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, write the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+#-----------------------------------------------------------------------
+
+seq=$(basename $0)
+seqres=$RESULT_DIR/$seq
+echo "== QA output created by $seq"
+
+here=$(pwd)
+tmp=/tmp/$$
+status=1
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter.btrfs
+
+_supported_fs btrfs
+_supported_os Linux
+_require_scratch
+_require_command $BTRFS_SHOW_SUPER_PROG
+
+_scratch_mkfs > /dev/null 2>&1
+_scratch_mount
+
+check_features() {
+ reserved="$2"
+ method="$3"
+ if [ "$1" != 0 ]; then
+ echo "$method: failed: $reserved"
+ exit 1
+ fi
+ if [ "$reserved" = "Not implemented." ]; then
+ echo "Skipping ioctl test. Not implemented." >>
$seqres.full
+ return
+ fi
+}
+
+error=false
+
+# test -w will always return true if root is making the call.
+# This would be true in most cases, but for sysfs files, the permissions
+# are enforced even for root.
+is_writeable() {
+ local file=$1
+ mode=$(stat -c "0%a" "$file")
+ mode=$(( $mode & 0200 ))
+
+ [ "$mode" -eq 0 ] && return 1
+ return 0
+}
+
+# ioctl
+read -a features < <(src/btrfs_ioctl_helper $SCRATCH_MNT GET_FEATURES
2>&1)
+check_features $? "$features" "GET_FEATURES"
+
+test_ioctl=true
+[ "${features[*]}" = "Not implemented." ] &&
test_ioctl=false
+
+read -a supp_features < <(src/btrfs_ioctl_helper $SCRATCH_MNT
GET_SUPPORTED_FEATURES 2>&1)
+check_features $? "$supp_features" "GET_SUPPORTED_FEATURES"
+[ "${supp_features[*]}" = "Not implemented." ] &&
test_ioctl=false
+
+# Sysfs checks
+fsid=$(_btrfs_get_fsid $SCRATCH_DEV)
+sysfs_base="/sys/fs/btrfs"
+
+# TODO Add tool to enable and test unknown feature bits
+get_feature_mask() {
+ class=""
+ case "$attr" in
+ mixed_backref) class=incompat; bit=0x1 ;;
+ default_subvol) class=incompat; bit=0x2 ;;
+ mixed_groups) class=incompat; bit=0x4 ;;
+ compress_lzo) class=incompat; bit=0x8 ;;
+ compress_lsov2) class=incompat; bit=0x10 ;;
+ big_metadata) class=incompat; bit=0x20 ;;
+ extended_iref) class=incompat; bit=0x40 ;;
+ raid56) class=incompat; bit=0x80 ;;
+ skinny_metadata)class=incompat; bit=0x100 ;;
+ compat:*) class=compat; bit=${attr##compat:} ;;
+ compat_ro:*) class=compat_ro; bit=${attr##compat_ro:} ;;
+ incompat:*) class=incompat; bit=${attr##incompat:} ;;
+ esac
+ if [ -z "$class" ]; then
+ echo "Unknown feature name $attr. xfstests needs updating." \
+ " Skipping the test of sysfs values to superblock values" \
+ >> $seqres.full
+ return
+ fi
+
+ echo "$class $bit"
+}
+
+get_changeable_mask() {
+ local class=$1
+ local index=0
+ if [ "$class" = "compat" ]; then
+ index=0
+ elif [ "$class" = "compat_ro" ]; then
+ index=1
+ elif [ "$class" = "incompat" ]; then
+ index=2
+ fi
+ local set_index=$(( $index + 3 ))
+ local clear_index=$(( $index + 6 ))
+
+ local mask=$(( ${supp_features[$set_index]} | \
+ ${supp_features[$clear_index]} ))
+
+ echo $mask
+}
+
+test_sysfs=false
+if [ -d "$sysfs_base/features" -a -d
"$sysfs_base/$fsid/features" ]; then
+ test_sysfs=true
+fi
+
+# Check enabled features in sysfs vs what the superblock claims
+sysfs_features=(0 0 0)
+for file in $sysfs_base/$fsid/features/*; do
+ $test_sysfs || break
+ attr=$(basename $file)
+ val=$(cat $file)
+ read class bit < <(get_feature_mask $attr)
+
+ # A file that exists but has a 0 value means that it''s changeable
+ if [ "$val" -eq 0 ]; then
+ if [ ! -e "$sysfs_base/features/$attr" ]; then
+ echo "$fsid/$attr exists with a 0 value but" \
+ "features/$attr doesn''t exist."
+ error=true
+ continue
+ elif ! is_writeable "$file"; then
+ echo "$attr is not writable but exists and has a" \
+ "0 value."
+ error=true
+ fi
+
+ mask=$(get_changeable_mask $class)
+ if [ "$(( $bit & ~$mask ))" -ne 0 ]; then
+ echo "$attr is writable but GET_SUPPORTED_FEATURES" \
+ "ioctl claims it shouldn''t be."
+ error=true
+ fi
+
+ continue
+ fi
+ if [ "$class" = "compat" ]; then
+ sysfs_features[0]=$(( ${sysfs_features[0]} | $bit ))
+ elif [ "$class" = "compat_ro" ]; then
+ sysfs_features[1]=$(( ${sysfs_features[1]} | $bit ))
+ elif [ "$class" = "incompat" ]; then
+ sysfs_features[2]=$(( ${sysfs_features[2]} | $bit ))
+ else
+ # We will end up with a bit set in the superblock that
+ # doesn''t have a matching bit here. The feature-bit to name
+ # mapping must be kept up-to-date for this test to succeed.
+ echo "Unknown feature name $attr. xfstests needs updating." \
+ "Skipping the test of sysfs values to superblock values" \
+ >> $seqres.full
+ skip_sysfs_super_check=true
+ fi
+done
+
+for file in $sysfs_base/features/*; do
+ $test_sysfs || break
+ attr=$(basename $file)
+ val=$(cat $file)
+ if [ "$val" -gt 0 ]; then
+ if [ ! -e "$sysfs_base/$fsid/features/$attr" ]; then
+ echo "features/$attr has a nonzero value ($val)" \
+ "but $fsid/features/$attr doesn''t exist"
+ error=true
+ continue
+ fi
+ if ! is_writeable "$sysfs_base/$fsid/features/$attr"; then
+ echo "features/$attr has a nonzero value ($val)" \
+ "but $fsid/features/$attr is not writable"
+ error=true
+ continue
+ fi
+ continue
+ fi
+
+ [ ! -e "$sysfs_base/$fsid/features/$attr" ] && continue
+
+ if is_writeable "$sysfs_base/$fsid/features/$attr"; then
+ echo "features/$attr has a zero value but" \
+ "$fsid/features/$attr is writable."
+ error=true
+ continue
+ fi
+
+ read class bit < <(get_feature_mask $attr)
+ mask=$(get_changeable_mask $class)
+ if [ "$(( $bit & $mask ))" -ne 0 ]; then
+ echo "$attr isn''t writable but GET_SUPPORTED_FEATURES" \
+ "ioctl claims it should be."
+ error=true
+ continue
+ fi
+done
+
+umount $SCRATCH_MNT > /dev/null 2>&1
+
+fields=("compat" "compat_ro" "incompat")
+declare -a disk_flags
+
+check_ioctl_flags() {
+ local index=$1
+ local flags=${features[$index]}
+
+ if [ "$flags" != "${disk_flags[$index]}" ]; then
+ echo "ioctl returned different ${fields[$index]} flags" \
+ "($flags) than those contained in superblock" \
+ "(${disk_flags[$index]})"
+ error=true
+ fi
+}
+
+check_sysfs_flags() {
+ local index=$1
+ $skip_sysfs_super_check || return
+
+ flags=$(printf "0x%llx" ${sysfs_features[$index]})
+ if [ "$flags" != "${disk_flags[$index]}" ]; then
+ echo "sysfs returned different ${fields[$index]}" \
+ "flags ($flags) than those contained in" \
+ "superblock (${disk_flags[$index]})"
+ error=true
+ fi
+}
+
+
+for index in $(seq 0 2); do
+ class=${fields[$index]}
+ disk_flags[$index]=$(_btrfs_get_feature_flags $SCRATCH_DEV $class)
+ $test_ioctl && check_ioctl_flags "$index"
+ $test_sysfs && check_sysfs_flags "$index"
+done
+
+$error && exit 1
+
+#
+echo "Silence is golden"
+status=0
+exit
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ b/tests/btrfs/023.out 2013-10-29 15:07:37.999861589 -0400
@@ -0,0 +1,2 @@
+== QA output created by 023
+Silence is golden
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ b/tests/btrfs/024 2013-10-29 15:07:37.999861589 -0400
@@ -0,0 +1,185 @@
+#!/bin/bash
+# FA QA Test No. 024
+#
+# Test online feature changing via ioctl
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2013 SUSE, All Rights Reserved.
+#
+# 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.
+#
+# This program is distributed in the hope that it would 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, write the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+#-----------------------------------------------------------------------
+
+seq=$(basename $0)
+seqres=$RESULT_DIR/$seq
+echo "== QA output created by $seq"
+
+here=$(pwd)
+tmp=/tmp/$$
+status=1
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter.btrfs
+
+_supported_fs btrfs
+_supported_os Linux
+_require_scratch
+_require_command $BTRFS_SHOW_SUPER_PROG
+
+IOCTL=src/btrfs_ioctl_helper
+
+check_features() {
+ reserved="$2"
+ method="$3"
+ if [ "$1" != 0 ]; then
+ echo "$method: failed: $reserved"
+ exit 1
+ fi
+ if [ "$reserved" = "Not implemented." ]; then
+ echo "Skipping ioctl $method test. Not implemented." \
+ >> $seqres.full
+ echo "Silence is golden."
+ exit 0
+ fi
+}
+
+# 3 values, one for each each of the fields
+update_features() {
+ read -a features < <($IOCTL $SCRATCH_MNT GET_FEATURES 2>&1)
+ check_features $? "${features[@]}" "GET_FEATURES"
+}
+
+set_feature() {
+ local field=$1
+ local bits=$2
+ local class=${fields[$field]}
+ local old=${features[$field]}
+ msg=$($IOCTL $SCRATCH_MNT SET_FEATURES set $class $bits)
+ check_features $? "$msg" "SET_FEATURES"
+ update_features
+ local new=${features[$field]}
+
+ if [ "$old" = "$new" ]; then
+ echo "Feature setting failed"
+ exit 1
+ fi
+ expected=$(( $old | $bits ))
+ new=$(( $new ))
+ if [ "$expected" -ne "$new" ]; then
+ echo "Feature setting failed; Got $new, expected $expected"
+ exit 1
+ fi
+ echo $new
+}
+
+clear_feature() {
+ local field=$1
+ local bits=$2
+ local class=${fields[$field]}
+ local old=${features[$field]}
+ msg=$($IOCTL $SCRATCH_MNT SET_FEATURES clear $class $bits)
+ check_features $? "$msg" "SET_FEATURES"
+ update_features
+ local new="${features[$field]}"
+
+ if [ "$old" = "$new" ]; then
+ echo "Feature clearing failed"
+ exit 1
+ fi
+ expected=$(( $old & ~$bits ))
+ new=$(( $new ))
+ if [ "$expected" -ne "$new" ]; then
+ echo "Feature clearing failed; Got $new, expected $expected"
+ exit 1
+ fi
+}
+
+check_flags() {
+ local index=$1
+ local expected=$(( $2 ))
+ local class=${fields[$index]}
+ disk_flags="$(( $(_btrfs_get_feature_flags $SCRATCH_DEV $class) ))"
+ if [ "$disk_flags" -ne "$expected" ]; then
+ echo "mismatch: $disk_flags-$expected"
+ error=true
+ fi
+}
+
+error=false
+fields=("compat" "compat_ro" "incompat")
+
+_scratch_mkfs > /dev/null 2>&1
+_scratch_mount
+
+update_features
+
+# 9 values; 3 each for supported, settable, and clearable
+read -a supp_features < <($IOCTL $SCRATCH_MNT GET_SUPPORTED_FEATURES
2>&1)
+check_features $? "$supp_features" "GET_SUPPORTED_FEATURES"
+
+# Cycle through settable features.
+# Set the feature
+# Reload ioctl version and test against expected new value
+# Unmount and test against expected new value
+# Reount
+settable() {
+ echo "${supp_features[$(( $1 + 3 ))]}"
+}
+did_set=false
+for field in $(seq 0 2); do
+ fset="$(settable $field)"
+ [ -z "$fset" ] && break
+ for n in $(seq 0 63); do
+ old="${features[$field]}"
+ v="$(( $fset & (1 << $n) ))"
+ [ "$v" -eq 0 ] && continue
+ new="$(set_feature $field $v)"
+ umount $SCRATCH_MNT > /dev/null 2>&1
+ expected="$(( $old | $v ))"
+ check_flags "$field" "$expected"
+ _scratch_mount
+ did_set=true
+ done
+done
+$did_set || echo "No online-settable features to test." >>
$seqres.full
+
+# Repeat with clearing features
+clearable() {
+ echo "${supp_features[$(( $1 + 6 ))]}"
+}
+did_clear=false
+for field in $(seq 0 2); do
+ fclear="$(clearable $field)"
+ [ -z "$fclear" ] && break
+ for n in $(seq 0 63); do
+ v="$(( $fclear & (1 << $n) ))"
+ [ "$v" -eq 0 ] && continue
+
+ new="$(clear_feature $field $v)"
+ umount $SCRATCH_MNT > /dev/null 2>&1
+ expected=$(( $old &~ $v ))
+ check_flags $field $expected
+ _scratch_mount
+ did_clear=true
+ done
+done
+$did_clear || echo "No online-clearable features to test." >>
$seqres.full
+
+umount $SCRATCH_MNT > /dev/null 2>&1
+
+$error && exit 1
+
+echo "Silence is golden"
+status=0
+exit
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ b/tests/btrfs/024.out 2013-10-29 15:07:37.999861589 -0400
@@ -0,0 +1,2 @@
+== QA output created by 024
+Silence is golden
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ b/tests/btrfs/025 2013-10-29 15:07:37.999861589 -0400
@@ -0,0 +1,178 @@
+#!/bin/bash
+# FA QA Test No. 025
+#
+# Test online feature changing via sysfs
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2013 SUSE, All Rights Reserved.
+#
+# 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.
+#
+# This program is distributed in the hope that it would 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, write the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+#-----------------------------------------------------------------------
+
+seq=$(basename $0)
+seqres=$RESULT_DIR/$seq
+echo "== QA output created by $seq"
+
+here=$(pwd)
+tmp=/tmp/$$
+status=1
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter.btrfs
+
+_supported_fs btrfs
+_supported_os Linux
+_require_scratch
+_require_command $BTRFS_SHOW_SUPER_PROG
+
+IOCTL=src/btrfs_ioctl_helper
+
+check_flags() {
+ local class=$1
+ local expected=$2
+ disk_flags="$(_btrfs_get_feature_flags $SCRATCH_DEV $class)"
+ disk_flags=$(printf 0x%llx $disk_flags)
+ expected=$(printf 0x%llx $expected)
+ if [ "$disk_flags" != "$expected" ]; then
+ echo "mismatch: $disk_flags-$expected"
+ error=true
+ fi
+}
+
+get_feature_mask() {
+ local attr=$1
+ local class=""
+ local bit+ case "$attr" in
+ mixed_backref) class=incompat bit=0x1 ;;
+ default_subvol) class=incompat bit=0x2 ;;
+ mixed_groups) class=incompat bit=0x4 ;;
+ compress_lzo) class=incompat bit=0x8 ;;
+ compress_lsov2) class=incompat bit=0x10 ;;
+ big_metadata) class=incompat bit=0x20 ;;
+ extended_iref) class=incompat bit=0x40 ;;
+ raid56) class=incompat bit=0x80 ;;
+ skinny_metadata)class=incompat bit=0x100 ;;
+ compat:*) class=compat; bit=${attr##compat:} ;;
+ compat_ro:*) class=compat_ro; bit=${attr##compat_ro:} ;;
+ incompat:*) class=incompat; bit=${attr##incompat:} ;;
+ esac
+ if [ -z "$class" ]; then
+ echo "Unknown feature name $attr. xfstests needs updating." \
+ " Skipping the test of sysfs values to superblock values" \
+ >> $seqres.full
+ return
+ fi
+ echo "$class $bit"
+}
+
+
+_scratch_mkfs > /dev/null 2>&1
+error=false
+fields=("compat" "compat_ro" "incompat")
+sysfs_base="/sys/fs/btrfs"
+settable=""
+clearable=""
+
+if [ ! -d "$sysfs_base/features" ]; then
+ echo "Silence is golden"
+ echo "This kernel does not export $sysfs_base/features." \
+ "Nothing to test." >> $seqres.full
+ exit 0
+fi
+
+# Gather up the features the kernel knows about
+_scratch_mount
+for feature in $sysfs_base/features/*; do
+ val=$(cat $feature)
+ fname=$(basename $feature)
+ if [ "$(( $val & 0x1 ))" -eq 1 ]; then
+ settable="$settable $fname"
+ fi
+ if [ "$(( $val & 0x2 ))" -eq 2 ]; then
+ clearable="$clearable $fname"
+ fi
+done
+umount $SCRATCH_MNT > /dev/null 2>&1
+
+# Set/clear tests do their own mount cycling
+sysfs_fs_base="$sysfs_base/$(_btrfs_get_fsid $SCRATCH_DEV)"
+
+if [ ! -d "$sysfs_fs_base/features" ]; then
+ echo "Silence is golden"
+ echo "This kernel does not export $sysfs_fs_base/features." \
+ "Nothing to test." >> $seqres.full
+ exit 0
+fi
+
+did_set=false
+for feature in $settable; do
+ read class bit < <(get_feature_mask $feature)
+ [ -z "$class" ] && continue
+ flags=$(_btrfs_get_feature_flags $SCRATCH_DEV $class)
+ _scratch_mount
+ val=$(cat $sysfs_fs_base/features/$feature)
+ [ "$val" -ne 0 ] && continue
+ echo 1 > $sysfs_fs_base/features/$feature
+ if [ $? -ne 0 ] ; then
+ echo "Error while setting $feature - $st"
+ error=true
+ umount $SCRATCH_MNT > /dev/null 2>&1
+ continue
+ fi
+ newval=$(cat $sysfs_fs_base/features/$feature)
+ if [ "$newval" -ne 1 ]; then
+ echo "Setting feature $feature was ignored."
+ error=true
+ fi
+ umount $SCRATCH_MNT > /dev/null 2>&1
+ check_flags $class $(( $flags | $bit ))
+ did_set=true
+done
+$did_set || echo "No online-settable features to test." >>
$seqres.full
+
+did_clear=false
+for feature in $clearable; do
+ read class bit < <(get_feature_mask $feature)
+ [ -z "$class" ] && continue
+ flags=$(_btrfs_get_feature_flags $SCRATCH_DEV $class)
+ _scratch_mount
+ val=$(cat $sysfs_fs_base/features/$feature)
+ [ "$val" -ne 1 ] && continue
+ echo 0 > $sysfs_fs_base/features/$feature
+ if [ $? -ne 0 ] ; then
+ echo "Error while clearing $feature - $st"
+ error=true
+ umount $SCRATCH_MNT > /dev/null 2>&1
+ continue
+ fi
+ newval=$(cat $sysfs_fs_base/features/$feature)
+ if [ "$newval" -ne 0 ]; then
+ echo "Clearing feature $feature was ignored."
+ error=true
+ fi
+ umount $SCRATCH_MNT > /dev/null 2>&1
+ check_flags $class $(( $flags & ~$bit ))
+ did_clear=true
+done
+$did_clear || echo "No online-clearable features to test." >>
$seqres.full
+
+# Still umounted from set/clear tests
+
+$error && exit 1
+
+echo "Silence is golden"
+status=0
+exit
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ b/tests/btrfs/025.out 2013-10-29 15:07:38.003861522 -0400
@@ -0,0 +1,2 @@
+== QA output created by 025
+Silence is golden
--- a/tests/btrfs/group 2013-10-29 15:07:34.627918142 -0400
+++ b/tests/btrfs/group 2013-10-29 15:07:50.855642840 -0400
@@ -25,3 +25,6 @@
020 auto quick
021 auto quick
022 auto
+023 auto quick
+024 auto quick
+025 auto quick
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