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* btrfs-progs: Introduce get_unit_mode_from_arg for common useZhao Lei2015-08-31
| | | | | | | | | | | | | | | | | | We are using separate code for parsing unit mode in current code, better to use common function. This patch introduces a common function to specify units as arguments and a common help message, to make every tool in btrfs having same unit argument. The benefits are: 1: Unify current tool's arguments for unit 2: Make tools in future easy to implement such argument 3: Changes (enhancement) in common function have effect on all relative tools Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: add memory allocation fail check in btrfs_add_to_fsid()Byongho Lee2015-08-31
| | | | | | | | | | In btrfs_add_to_fsid(), strdup() allocates memory to device->name, but the return value is not checked. So add the return value check and error handling code. And clean-up error handling code for ENOMEM case. Signed-off-by: Byongho Lee <bhlee.kernel@gmail.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: Introduce btrfs_open_dir wrapperZhao Lei2015-08-31
| | | | | | | | | | | This patch introduce open_btrfs_dir() to open a dir in btrfs filesystem. It can be used for several tools in btrfs-progs. Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com> [renamed from open_btrfs_dir, adjusted error messages] Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: utils: missing newline in error messages when checking dupDavid Sterba2015-07-14
| | | | Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: drop unused parameter from make_btrfsDavid Sterba2015-07-01
| | | | Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: move make_btrfs arguments to a structDavid Sterba2015-07-01
| | | | | | | No functional change, just introduce the structure and switch current users. Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: add helper for copying pathsDavid Sterba2015-06-12
| | | | | | Check the source path length and do the copy. Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: properly set up ioctl argumentsDavid Sterba2015-06-12
| | | | | | | | At some places we do not clear the whole ioctl structure and could pass garbage to kernel. Zero the ioctl vol_args and use a helper for copying the path. Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: use PATH_MAX instead of BTRFS_PATH_NAME_MAXDavid Sterba2015-06-12
| | | | | | | | | | The path bufferes should be PATH_MAX but BTRFS_PATH_NAME_MAX is shorter due to embedding in 4k aligned structures. The only reason to use BTRFS_PATH_NAME_MAX is for the respective structures btrfs_ioctl_vol_args::name. Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: use less memory for pretty_size_mode buffersDavid Sterba2015-06-11
| | | | | | | | | | | | | | | | | | Anand reports that the static buffers used for pertty size strings cause a stack overflow on SPARC. Zach proposed to change the printf format to wrap the number and the suffix into a macro. This would require to change all callsites of pretty_size* and is not very convienient to write. This patch replaces the per-call-site static buffers with a limited number for slots that would be used on each invokation of pretty_size and wrap around. The number of array slots shall be 10 for now, in current codebase there are no more than 2 calls to pretty_size in a single argument list. Reported-by: Anand Jain <Anand.Jain@oracle.com> CC: Zach Brown <zab@zabbo.net> Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: print error within test_num_disk_vs_raidDavid Sterba2015-06-11
| | | | | | | | The error string buffer passed as an argument is of a fixed size, though we could print up to PATH_MAX + something bytes. Print the error message directly. Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: print error within test_dev_for_mkfsDavid Sterba2015-06-11
| | | | | | | | The error string buffer passed as an argument is of a fixed size, though we could print up to PATH_MAX + something bytes. Print the error message directly. Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: cleanup after errors in open_file_or_dir3David Sterba2015-06-09
| | | | | | | | We should zero the dirstream in case we close it ourselves, so the caller does not do it again. Most current callers do not do that and exit immediatelly. Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: fix argv0_buf handlingDavid Sterba2015-06-09
| | | | | | | | | | | | | | | | The variable argv0_buf was duplicated and the changes done in utils.c were not propagated to help.c. So if an unknown commandline token was found, the error message did not contain the known part: $ btrfs scrub test : unknown token 'test' instead of $ btrfs scrub test btrfs scrub: uknown token 'test' Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: return the fsid from make_btrfs()Goffredo Baroncelli2015-06-08
| | | | | | | | | | | The function make_btrfs() has as argument the fsid of the filesystem. If this fsid is empty or null make_btrfs() generates a new fsid. However If the buffer is valid (but the string is empty) the generated fsid is copied back to the caller. Signed-off-by: Goffredo Baroncelli <kreijack@inwind.it> Reviewed-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: add strdup in btrfs_add_to_fsid() to track the device pathGoffredo Baroncelli2015-06-08
| | | | | | | | | When creating a new btrfs_device, copy the path to track it. This path is then used by mkfs.btrfs to list all devices. Signed-off-by: Goffredo Baroncelli <kreijack@inwind.it> Reviewed-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: mkfs: move info message out of btrfs_add_to_fsidDavid Sterba2015-06-08
| | | | Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: add function to stringify filesystem featuresDavid Sterba2015-06-04
| | | | Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: mkfs: check metadata redundancySam Tygier2015-06-02
| | | | | | | | | | | | | | | | Currently BTRFS allows you to make bad choices of data and metadata levels. For example -d raid1 -m raid0 means you can only use half your total disk space, but will lose everything if 1 disk fails. It should give a warning in these cases. When making a filesystem, check that metadata mode is at least as redundant as the data mode. For example give warning when: -d raid1 -m raid0 Signed-off-by: Sam Tygier <samtygier@yahoo.co.uk> [make the check more visible in mkfs output] Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: btrfs_scan_block_devices is unused function delete itAnand Jain2015-05-14
| | | | | | | | | After Patch: remove BTRFS_SCAN_PROC scan method There isn't any consumer for btrfs_scan_block_devices() so delete it. Signed-off-by: Anand Jain <anand.jain@oracle.com> Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: print fs features filtered by a maskDavid Sterba2015-04-07
| | | | | | | mkfs and convert will not support the same features, -O will print only the list according to the given mask. Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: move feature parsing from mkfs to utilsDavid Sterba2015-04-07
| | | | | | | We'll use them in convert as well. Move defines and the interface functions to utils.*. Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: mkfs, deprecate leafsize and clean up the codeDavid Sterba2015-04-07
| | | | | | | Using the --leafsize will issue a warning. Replace leafsize with nodesize in the mkfs-related code. Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: Allow parse_qgroupid() to resolve subvolume path into qgroupidQu Wenruo2015-03-24
| | | | | | | | | | Now parse_qgroupid() can resolve subvolume path into qgroupid. This is quite handy for handling level 0 qgroupid, and user don't need to resolve rootid by hand now. Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> [constify string in __is_subvol] Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: Move parse_qgroupid() to utils.cQu Wenruo2015-03-24
| | | | | | Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> [constified strings in parse_qgroupid] Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: Fix msgs in check_node_or_leaf_sizeSebastian Thorarensen2015-03-23
| | | | | | | | | | check_node_or_leaf_size in utils.c now prints 'nodesize (or leafsize)' instead of 'leafsize (or nodesize)' in the error messages, in order to be less confusing for the user, as leafsize in mkfs is deprecated. 'ERROR: ' is also prepended to be consistent with other error messages. Signed-off-by: Sebastian Thorarensen <sebth@naju.se> Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: mkfs: Move out some nodesize codeSebastian Thorarensen2015-03-23
| | | | | | | | | | | Move the constant DEFAULT_MKFS_LEAF_SIZE to utils.h and rename it to BTRFS_MKFS_DEFAULT_NODE_SIZE for consistency. Move the function check_leaf_or_node_size to utils.c and rename it to btrfs_check_node_or_leaf_size. Signed-off-by: Sebastian Thorarensen <sebth@naju.se> [added btrfs_ prefix] Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: don't output operational status information to stderrXing Gu2015-01-27
| | | | | Signed-off-by: Xing Gu <gux.fnst@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: drop feature defines from C files, in favour of CFLAGS definesDimitri John Ledkov2015-01-27
| | | | | | | | | | | | | | | | | | | | | | glibc 2.10+ (5+ years old) enables all the desired features: _XOPEN_SOURCE 700, __XOPEN2K8, POSIX_C_SOURCE, DEFAULT_SOURCE; with a single _GNU_SOURCE define in the makefile alone. For portability to other libc implementations (e.g. dietlibc) _XOPEN_SOURCE=700 is also defined. This also resolves Debian bug report filed by Michael Tautschnig - "Inconsistent use of _XOPEN_SOURCE results in conflicting declarations". Whilst I was not able to reproduce the results, the reported fact is that _XOPEN_SOURCE set to 500 in one set of files (e.g. cmds-filesystem.c) generates/defines different struct stat from other files (cmds-replace.c). This patch thus cleans up all feature defines, and sets them at a consistent level. Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=747969 Signed-off-by: Dimitri John Ledkov <dimitri.j.ledkov@intel.com> Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: Fix a buffer overflow causing segfault in fstests/btrfs/069Qu Wenruo2015-01-09
| | | | | | | | | | | | | | | | | | The newly introduced search_chunk_tree_for_fs_info() won't count devid 0 in fi_arg->num_devices, which will cause buffer overflow since later get_device_info() will fill di_args with devid. This can be trigger by fstests/btrfs/069 and any operations needs to iterate over all the devices like 'fi show' or 'dev stat' while replacing. The fix is do an extra probe specifically for devid 0 after search_chunk_tree_for_fs_info() and change num_devices if needed. Reported-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com> Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: Allow debug-tree to be executed on regular file.Qu Wenruo2015-01-09
| | | | | | | | | | | The commit 1bad43fbe002 ("btrfs-progs: refine btrfs-debug-tree error prompt when a mount point given") add judgement on btrfs-debug-tree to restrict only block device to be executed on, but the command can also be used on regular file, so add regular file support for the judgement. Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: safely copy path in btrfs_scan_lblkidDavid Sterba2015-01-03
| | | | | | | We should terminate the string, let's use the wrapper. Resolves-coverity-id: 1127097 Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: cleanup whitespace in is_same_blk_fileDavid Sterba2015-01-03
| | | | Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: use strncpy in is_same_blk_fileDavid Sterba2015-01-03
| | | | | | | Although we're getting strings from the caller, let's be safe. Resolves-coverity-id: 1199475 Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: move check_arg_type() to util.cGui Hecheng2014-12-29
| | | | | | | | | The check_arg_type() function does quite generic thing, move it to utils.c. Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com> Reviewed-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: basic support for TREE_SEARCH_V2 ioctlDavid Sterba2014-12-10
| | | | | | Add the interface and helper that checks if the v2 ioctl is supported. Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: fix wrong num_devices for btrfs fi show with seed devicesGui Hecheng2014-12-04
| | | | | | | | | The @fi_args->num_devices in @get_fs_info() does not include seed devices. We could just correct it by searching the chunk tree and count how many dev_items there are in total which includes seed devices. Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: remove BUG_ON on num of devices for btrfs fi showGui Hecheng2014-12-04
| | | | | | | | | The following BUG_ON: BUG_ON(ndevs >= fi_args->num_devices) is not needed, because it always fails with seed devices present. Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: provide better error message for raid profile mismatchHidetoshi Seto2014-12-04
| | | | | | | | | | | | | | | | | | | | | Current error messages are like following: Error: unable to create FS with metadata profile 32 (have 2 devices) Error: unable to create FS with metadata profile 256 (have 2 devices) Obviously it is hard for users to interpret "profile XX" to proper meaning, such as "raidN". So use recongizable string instead of internal numerical value. In case of "DUP", use an explicit message. Plus this patch fix a bug that message mistake metadata profile for data profile. After applying this patch, messages will be like: Error: DUP is not allowed when FS have multiple devices Error: unable to create FS with metadata profile RAID6 (have 2 devices but 3 devices are required) Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: Add command btrfs filesystem disk-usageGoffredo Baroncelli2014-12-04
| | | | | Signed-off-by: Goffredo Baroncelli <kreijack@inwind.it> Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: Enhance the command btrfs filesystem dfGoffredo Baroncelli2014-12-04
| | | | | | | | | | Enhance the command "btrfs filesystem df" to show space usage information for a mount point(s). It shows also an estimation of the space available, on the basis of the current one used. Signed-off-by: Goffredo Baroncelli <kreijack@inwind.it> [code moved under #if 0 instead of deletion] Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: move group type and profile pretty printers to utilsDavid Sterba2014-12-04
| | | | | | Move and add the btrfs_ prefix. Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: use proper size for argv0 substitutionDavid Sterba2014-11-18
| | | | | | | | | | | | Make run from a long base path will overflow the argv0 buffer during tests. Otherwise, this would happen for all the standalone binaries that use set_argv0. Original report: https://bbs.archlinux.org/viewtopic.php?id=189861 Reported-by: WorMzy Tykashi <wormzy.tykashi@gmail.com> Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: use the correct SI prefixesDavid Sterba2014-11-04
| | | | | | The SI standard defines lowercase 'k' and uppercase for the rest. Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: optimize btrfs_scan_lblkid() for multiple callsAnand Jain2014-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | btrfs_scan_lblikd() is called by most the device related command functions. And btrfs_scan_lblkid() is most expensive function and it becomes more expensive as number of devices in the system increase. Further some threads call this function more than once for absolutely no extra benefit and the real waste of resources. Below list of threads and number of times btrfs_scan_lblkid() is called in that thread. btrfs-find-root 1 btrfs rescue super-recover 2 btrfs-debug-tree 1 btrfs-image -r 2 btrfs check 2 btrfs restore 2 calc-size NC btrfs-corrupt-block NC btrfs-image NC btrfs-map-logical 1 btrfs-select-super NC btrfstune 2 btrfs-zero-log NC tester NC quick-test.c NC btrfs-convert 0 mkfs #number of devices to be mkfs btrfs label set unmounted 2 btrfs get label unmounted 2 This patch will: move out calling register_one_device with in btrfs_scan_lblkid() and so function setting the BTRFS_UPDATE_KERNEL to yes will call btrfs_register_all_devices() separately. introduce a global variable scan_done, which is set when scan is done succssfully per thread. So that following calls to this function will just return success. Further if any function needs to force scan after scan_done is set, then it can be done when there is such a requirement, but as of now there isn't any such requirement. Signed-off-by: Anand Jain <anand.jain@oracle.com> Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: introduce btrfs_register_all_device()Anand Jain2014-11-03
| | | | | | | | | | | | This function is to register all devices found after scanning the system. Before we had this functionality with in the btrfs_scan_lblkid(), however scanning and registering are two different distinct operation its better keep them separate. Also we want to optimize btrfs_scan_lblkid and avoid multiple system scans unless needed. As of now device scan uses this function. Signed-off-by: Anand Jain <anand.jain@oracle.com> Signed-off-by: David Sterba <dsterba@suse.cz>
* revert btrfs-progs: do a separate probe for _transient_ replacing deviceAnand Jain2014-11-03
| | | | | | | | | | | | | | There is a compatibility issue with older kernel with the progs commit id as below. d0588bfa479409b2a0f6243f894338a01a56221a btrfs-progs: do a separate probe for _transient_ replacing device So as of now writing to revert the above commit id. The brewing sysfs interface would help to fix the impending issue, which is seed device would fail show in 'btrfs fi show' output of a sprout device. Signed-off-by: Anand Jain <anand.jain@oracle.com> Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: code optimize cmd_scan_dev() use btrfs_register_one_device()Anand Jain2014-11-03
| | | | | | | | cmd_scan_dev() has it own code to register device (calling ioctl BTRFS_IOC_SCAN_DEV), apparently it could use btrfs_register_one_device(). Signed-off-by: Anand Jain <anand.jain@oracle.com> Signed-off-by: David Sterba <dsterba@suse.cz>
* Btrfs-progs: check, ability to detect and fix outdated snapshot root itemsFilipe Manana2014-10-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change adds code to detect and fix the issue introduced in the kernel release 3.17, where creation of read-only snapshots lead to a corrupted filesystem if they were created at a moment when the source subvolume/snapshot had orphan items. The issue was that the on-disk root items became incorrect, referring to the pre orphan cleanup root node instead of the post orphan cleanup root node. A test filesystem can be generated with the test case recently submitted for xfstests/fstests, which is essencially the following (bash script): workout() { ops=$1 procs=$2 num_snapshots=$3 _scratch_mkfs >> $seqres.full 2>&1 _scratch_mount snapshot_cmd="$BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT" snapshot_cmd="$snapshot_cmd $SCRATCH_MNT/snap_\`date +'%H_%M_%S_%N'\`" run_check $FSSTRESS_PROG -p $procs \ -x "$snapshot_cmd" -X $num_snapshots -d $SCRATCH_MNT -n $ops } ops=10000 procs=4 snapshots=500 workout $ops $procs $snapshots Example of btrfsck's (btrfs check) behaviour against such filesystem: $ btrfsck /dev/loop0 root item for root 311, current bytenr 44630016, current gen 60, current level 1, new bytenr 44957696, new gen 61, new level 1 root item for root 1480, current bytenr 1003569152, current gen 1271, current level 1, new bytenr 1004175360, new gen 1272, new level 1 root item for root 1509, current bytenr 1037434880, current gen 1300, current level 1, new bytenr 1038467072, new gen 1301, new level 1 root item for root 1562, current bytenr 33636352, current gen 1354, current level 1, new bytenr 34455552, new gen 1355, new level 1 root item for root 3094, current bytenr 1011712000, current gen 2935, current level 1, new bytenr 1008484352, new gen 2936, new level 1 root item for root 3716, current bytenr 80805888, current gen 3578, current level 1, new bytenr 73515008, new gen 3579, new level 1 root item for root 4085, current bytenr 714031104, current gen 3958, current level 1, new bytenr 716816384, new gen 3959, new level 1 Found 7 roots with an outdated root item. Please run a filesystem check with the option --repair to fix them. $ echo $? 1 $ btrfsck --repair /dev/loop0 enabling repair mode fixing root item for root 311, current bytenr 44630016, current gen 60, current level 1, new bytenr 44957696, new gen 61, new level 1 fixing root item for root 1480, current bytenr 1003569152, current gen 1271, current level 1, new bytenr 1004175360, new gen 1272, new level 1 fixing root item for root 1509, current bytenr 1037434880, current gen 1300, current level 1, new bytenr 1038467072, new gen 1301, new level 1 fixing root item for root 1562, current bytenr 33636352, current gen 1354, current level 1, new bytenr 34455552, new gen 1355, new level 1 fixing root item for root 3094, current bytenr 1011712000, current gen 2935, current level 1, new bytenr 1008484352, new gen 2936, new level 1 fixing root item for root 3716, current bytenr 80805888, current gen 3578, current level 1, new bytenr 73515008, new gen 3579, new level 1 fixing root item for root 4085, current bytenr 714031104, current gen 3958, current level 1, new bytenr 716816384, new gen 3959, new level 1 Fixed 7 roots. Checking filesystem on /dev/loop0 UUID: 2186e9b9-c977-4a35-9c7b-69c6609d4620 checking extents checking free space cache cache and super generation don't match, space cache will be invalidated checking fs roots checking csums checking root refs found 618537000 bytes used err is 0 total csum bytes: 130824 total tree bytes: 601620480 total fs tree bytes: 580288512 total extent tree bytes: 18464768 btree space waste bytes: 136939144 file data blocks allocated: 34150318080 referenced 27815415808 Btrfs v3.17-rc3-2-gbbe1dd8 $ echo $? 0 Signed-off-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: check sscanf return codeZach Brown2014-10-16
| | | | | | | | coverity warned that the return code from sscanf() assigned to 'i' wasn't checked before being assigned again. Check it. Signed-off-by: Zach Brown <zab@zabbo.net> Signed-off-by: David Sterba <dsterba@suse.cz>