-2005-05-23 multipath-tools-0.4.5
+Change logs are at :
- * [libmultipath] default_prio and prio_callout keyword can be
- explicitly set to "none". Suggested by Kiyoshi Ueda, NEC
- * [path_prio] don't exit pp_balance_units with error when
- find_controler() is not successful. It just means no other
- path is currently active on this controler.
- * [path_prio] move balance_units in its own dir
- * [multipathd] proactively fail_path upon checker up->down
- transitions. Suggested by Edward Goggin, EMC
- * [libmultipath] .priority is clearly an int, not an unsigned
- int. /bin/false is now personna non grata as a prio callout.
- Kiyoshi Ueda, NEC
- * [libmultipath] callout.c argv parsing fix. Kiyoshi Ueda,
- NEC
- * [multipathd] check return codes in init_paths(), split out
- init_event().
- * [libmultipath] add find_slot(vec, addr) to vector lib.
- * [multipath] remove signal sending
- * [multipathd] use uevent to do paths list housekeeping for
- checkers. Remove signal handling.
- * [libmultipath] add uevent.[ch]
-
-2005-04-23 multipath-tools-0.4.4
-
- * [path_prio] clarify pp_alua licensing. Stefan Bader, IBM.
- * [devmap_name] add a target_type filter (suggested by Hannes)
- and set DM task device by major:minor rather than parsing
- the full map list.
- * [libmultipath] propagate an error on getprio callout
- failures, so that multipath can mark the map as immutable.
- Reported by Lars Marowsky-Brée, Suse.
- * [libmultipath] move push_callout() from dict.c to config.c
- Use it in store_hwe() to get in multipathd's ramfs the
- callout defined in hwtable.c when no config file is used.
- Reported by Lars Marowsky-Brée, Suse.
- * [checkers] zero sense buffers before use in EMC checker.
- Lars Marowsky-Brée, Suse.
- * [all] pre-release bugfixing effort from Alasdair, Hannes,
- Lars, Benjamin Marzinski
- * [multipathd] set oom_adj to -17 when kernel permits.
- Immune to OOM killer ? agk says : watch out for mem
- leaks :/
- * [multipathd] safety nets from udevd : exit early if
- not root, chdir to / to avoid pining a mount.
- * [multipathd] multipathd could loose events coming from
- sighup or DM waitev. Add a pending_event counter to
- track that.
- * [path_prio] add pp_emc from Lars M Bree, Suse.
- * [path_prio] add pp_alua from Stefan Bader, IBM.
- * [libmultipath] add config.c:load_config(), which sucks
- a big chunk of code out of multipath/main.c.
- * [libmultipath] don't allocate memory in :
- * devmapper.c:dm_get_map()
- * devmapper.c:dm_get_status()
- * [libmultipath] devinfo() a la carte fetching
- * [libmultipath] merge keepalived memory audit framework
- (Thanks again, M. Cassen). Already found and fixed a
- couple of leaks.
- * [libmultipath] flatten/optimize dm_map_present() and
- dm_mapname(). Inspired by Alasdair Kergon, RedHat.
- * [kpartx] dm_map_name() free before use bugfix. Kiyoshi
- Ueda, NEC
- * [kpartx] add hotplug mode. To enable name the binary
- "kpartx.dev". Kiyoshi Ueda, NEC
- * [multipathd] don't loose events in event waiter thread.
- Suggested and prototyped by Edward Goggin, EMC
- * [libmultipath] add return values to vector manipulation
- fonctions. Mem alloc return code audit.
- * [libmultipath] Use "config->udev_dir + path->dev" as
- a path devnode to open instead of mknod'ing for each
- one. Fix some DoS issues regarding usage of /tmp in
- libmultipath/discovery.c:opennode(). Kill unlinknode()
- * [multipathd] merged the redhat init script and stop
- installing one on "make install"
- * [libmultipath] fold safe_sprintf.h into util.h
- * [libmultipath] move blacklist to a real regex matcher
- Example config files updated : check yours !!
- * [multipath] fix path group compare logic to not stop
- comparing at first path in each PG.
- * [multipathd] check if pidfile is a dead remnent of a
- crashed daemon. If so, overwrite it. Suggested by
- Alasdair Kergon, RedHat. Code heavily based on work
- by Andrew Tridgell, Samba Fame.
- * [build] dropped libdevmapper/ and libsysfs/ from the
- package. klibc build is now broken until distributors
- provide klibc compiled static libraries in their
- respective packages.
- * [libmultipath] dm_task_no_open_count() before each DM
- ioctl. Not doing that is reported to cause deadlocks
- in kernel-space. Reported by Edward Goggin, EMC, fix
- suggested by Alasdair Kergon, RedHat
- Note minimal libdevmapper version bumped up to 1.01.
- * [multipath] switched to condlog(). "make DEBUG=N" is
- deprecated. Debug is spat with "-v3" or more.
- * [multipathd] "multipathd -vN" cmdline arg to control
- daemon verbosity. 0 < N < 4. "make LOGLEVEL=N" is
- deprecated.
- * [libmultipath] provide a common condlog() primitive to
- switch lib messages to syslog or stdout depending on
- who uses the lib (daemon or tool).
- * [kpartx] give kpartx a private, slim copy of devmap.[ch]
- * [multipath] allow wwid in blacklist{} config section.
- Kiyoshi Ueda, NEC.
- * [multipathd] set mode value before use (S_IRWXU). Fixes
- RedHat Bugzilla Bug 150665.
- * [all] add ->fd to "struct path *". remove fd from all
- checker context declaration. remove lots of duplicate
- logic. Now a fd is opened only once for path. It should
- also bring a bit safety in contended memory scenarii
- * [libcheckers] remove redundant sg_include.h
- * [libmultipath] merge multipath:dict.[ch] with
- multipathd:dict.[ch] into libmultipath/. move config.h
- there too, add some helper functions to alloc/free
- "struct config *" in a new config.c. Start using a
- config in the daemon.
- * [libmultipath] move dm_geteventnr(), dm_get_maps() and
- dm_switchgroup() in devmapper.[ch]
- * [libmultipath] move path discovery logic in
- libmultipath. merge devinfo.[ch] and sysfs_devinfo.[ch]
- into discovery.[ch]
- * [libmultipath] move config.h in libmultipath. Move
- find_[mp|hw]e in a new config.c. Move "struct hwtable"
- declaration in config.h. Move propsel.[ch] in the
- lib too.
- * [multipathd] use libmultipath:dm_type() instead of
- duplacate and bogus devmap discovery code.
- * [multipathd] asynchronous & non-blocking logger
- thread. Implementation split into a generic log
- lib and a pthread wrapper for locking and events.
- An ipc wrapper could be easily created by
- interested parties.
- * [multipath] add "multipath -l -v2 [devname|devt]"
- support in complement to [mapname|wwid]
- * [kpartx] suppress loop.h private copy. Should fix
- the reported build problems
- * [multipath] do sysfs_get_mnt_path() only one time
- and store in a global var.
- * [multipath] further path discovery optimzation
- * [multipath] purge superfluous includes in main.c
- * [libmultipath] introduce a cache file. expiry set
- to 5 secondes to covert the hotplug event storms.
- * [multipath] split get_pathvec_sysfs(). Introduce
- get_refwwid() and filter_pathvec()
-
-2005-03-19 multipath-tools-0.4.3
-
- * [libmultipath] rename find_[mp|hw] to find_[mp|hw]e and
- introduce a real find_mp().
- * [priority] provison for recursive compilation of prio
- subdirs, in preparation of merging more signicant
- prioritizers. Stephan Bader, IBM
- * [libmultipath] add a netapp controler to the hwtable
- * [libmultipath] blacklist() not to discard sda[0-9]*
- when sda is blacklisted
- * [multipath] add a rr_min_io keyword in config file.
- Suggested by Igor Feoktistov, NetApp
- * [multipath] stop trying to avoid running in parallel
- * [multipath] bump up params size to 1024
- * [multipathd] put prio callouts in to ramfs. Stephan
- Bader, IBM
- * [multipath] simplify multibus pgpolicy : no need to
- copy mp->paths into mp->pg->paths then free source :
- just copy the ptr and set source to NULL.
- * [multipath] sort PG by descending prio value in
- group_by_prio. Stephan Bader, IBM
- * [multipath] fix a bug in group_by_prio that lead to
- creation of multiple PG for a single prio value
- * [multipath] don't store multipaths in a vector anymore :
- free the "struct multipath" after usage.
- * [multipath] multiple optimizations in the exec plan
- * [multipath] allow "multipath -l -v2 [mapname|wwid]"
- * [build] rip off klibc and move to klcc, at last.
- Good job hpa. multipath-tools now depend on klibc
- > 1.0 to build with BUILD=klibc flag.
- * [multipath] never reload a map if no path is up in the
- computed new map
- * [multipath] don't flush maps with open count != 0
- * [libmultipath] add "int *dm_get_opencount(char *map)"
- to devmapper.c
- * [multipath] plug leaks and optimize devinfo.c. From
- Edward Goggin, EMC
- * [multipath] fix the multipath.dev hotplug script to not
- do kpartx stuff in the same run as multipath stuff.
- Igor Feoktistov, NetApp, noted the devmap symlink was
- not yet present for kpartx to use.
- * [devmap_name] accept major:minor synthax
- * [libmultipath] add "char *dm_mapname(int maj, int min)",
- needed to fail paths from checker thread
- * [libmultipath] move dm_reinstate() in the lib, and add
- dm_fail_path()
- * [multipathd] mark failed path as failed upon DM
- event. This should fix the design bug noticed by
- Ramesh Caushik, Intel, where the daemon didn't run
- multipath when a path went down and up in between 2
- checks.
- * [libmultipath] allow NULL as a pathvec in disassemble_map
- as is passed only for memory optimization
- * [libmultipath] add structs.c to store alloc_*() and
- free_*()
- * [libmultipath] move dmparser.[ch] to the lib.
- remove devinfo.[ch] dependency.
- * [build] fix compilation glitch with BUILD=klibc,
- flags to force use of local libs, remove the link
- dependency in klibc, try to guess kernel sources
- and build dirs. Stefan Bader, IBM
- * [libmultipath] find_hw matching logic to take str
- lengths in account. Noticed by Ramesh Caushik, Intel
- * [multipath] select_action matching logic to take str
- length in account.
- * [multipath] lookup mp alias name earlier (in coalesce)
- Edward Goggin, EMC, noticed we tried to use it before
- it was set up.
-
-2005-01-23 multipath-tools-0.4.2
-
- * [libmultipath] add symmetrix controler family to the
- hwtable. Edward Goggin, EMC
- * [libmultipath] factorize core structs (path, ...)
- and defaults (pidfile, configfile, ...). Convert
- callers.
- * [multipath] fix dmparser to properly fetch non-default
- hwhandler. Edward Goggin, EMC
- * [multipath] fix devt2devname matching 8:1 with 8:10
- for example. Edward Goggin, EMC
- * [multipath] switch_pg upon devmap create or reload
- Noticed by Ake.
- * [libmultipath] move find_hw() the library. Convert
- users. Now multipathd understand '*' as a product
- string
- * [multipath] dissaemble_map() fix to avoid to
- interpret 'D' as a disable PG (not 'F'). Edward
- Goggin, EMC
- * [multipath] find_path() fix to avoid matching 8:1
- with 8:10 for example. Edward Goggin, EMC
- * [libmultipath] move some sysfs fetching routines
- to library, under sysfs_devinfo.[ch]. Convert
- callers.
- * [multipath] fix -v0 : avoids the daemon waiting
- for the initial multipath run to complete, which
- will never happen because of a flooded pipe
- * [multipathd] add scsi_id to default binvec
- * [libmultipath] move hwtable related logic to the
- library. Convert multipath and multipathd
- * [multipath] move first blacklist call down after
- setup_default_blist()
- * [libmultipath] move basename() to the lib. Convert
- multipath and multipathd.
- * [libmultipath] move blacklist related logic to the
- library. Convert multipath and multipathd
- * [multipath] fix bug in the default hardware table
- matching logic (Lars M-B, Suse)
- * [multipath] allow "*" as scsi model string wildcard
- (Lars M-B, Suse)
- * [multipath] provide a macro to fill all hwe fields,
- use it to declare Clariion models (Lars M-B, Suse)
- * [multipath] use DEFAULT_GETUID instead of hardcoded
- *and* incorrect "/bin/scsi_id -g -s" (Lars M-B, Suse)
- * [multipath] kill superfluous suspend before table
- reload. The code was unsafe, as spotted by Edward
- Goggin (EMC)
- * [multipath] exit early if device parameter is
- blacklisted
- * [multipath] don't check for prefix in initrd's
- multipath.dev : this is the tool responsability to
- exit early based on its blacklist.
- * [multipath] don't signal the daemon in initrd
- (Guido Guenther, Debian tracker)
- * [multipath] better fail to run kpartx in initrd
- than crashing the whole system. So don't sleep
- waiting for udev to create the DM node. Maybe udev
- has made progress I this regard ... (noticed by
- Paul Wagland, Debian tracker)
- * [multipath] don't reinstate when listing, ie list
- implies dry_run
- * [checkers] fix the emc checker (Hergen Lange)
- * [multipath] node_name fetching shouldn't exit on
- error. FC SAN are not the only multipathed context
- (noticed by Ramesh Caushik)
-
-2004-12-20 multipath-tools-0.4.1
-
- * [multipath] bump SERIAL_SIZE to 19
- * [multipath] add a new group_by_node_name pgpolicy
- * [multipath] move getopt policy parser to
- get_policy_id()
- * [multipath] remove get_evpd_wwid()
- * [checkers] fix the wwn_set test in emc checker
- (Hergen Lange)
- * [checkers] treat the emc checker in the name to
- index translator function (Hergen Lange)
- * [multipath] print to stderr DM unmet requirement
- (Guido Guenther)
- * [multipath] fix realloc return value store not
- propagated to caller by merge_word() (Nicola Ranaldo)
-
-2004-12-10 multipath-tools-0.4.0
-
- * [checkers] forgot to return back to caller the newly
- allocated context. Lead to fd leak notably.
- * [checkers] heavy check logic fix
- * [checkers] really malloc the checker context size,
- not the pointer size (stupidy may kill)
- * [multipathd] check more sysfs calls return values
- * [multipathd] search for sysfs mount point only once,
- not on each updatepaths() iteration
- * [multipathd] plug (char *) leak in the daemon
- * [multipath] change pgcmp logic : we want to reload a
- map only if a path is in computed map but not in cur
- map (ie accept to load a map if it brings more paths)
- * [multipath] undust coalesce_paths()
- * [multipath] don't print unchanged multipath
- * [multipath] store the action to take in the multipath
- struct
- * [multipath] print mp size with kB, MB, GB or TB units
- * [multipath] compilation fix for merge_words() (Andy)
- * [multipath] don't feed the kernel DM maps with paths of
- different sizes : DM fails and we end up with an empty
- map ... not fun
- * [multipath] cover a new corner case : path listed in
- status string but disappeared from sysfs
- * [multipath] remove the "-D" command line flag : now
- we can pass major:minor directly as last argument, like
- device names or device map names. Update multipathd
- accordingly.
- * [multipath] try reinstate again paths after a switchpg
- * [multipath] reinstate condition change :
-
-2004-12-05 multipath-tools-0.3.9
-
- * [multipath] add a "-l" flag to list the current
- multipath maps and their status info
- * [priority] zalloc controler to avoid random path_count
- at allocation time
- * [multipath] add configlet pointers in struct multipath
- to avoid searching for an entry over and over again
- * [multipath] new reinstate policy : on multipath exec,
- reinstate all failed paths the checkers report as ready
- if they belong to enabled path groups (not disabled, not
- active path group)
- * [multipath] fork a print_mp() out of print_all_mp()
- * [multipath] introduce PG priority, which is the sum of
- its path priorities. Set first_pg in the map string to
- the highest prio PG index.
- * [multipath] assemble maps scaning PG top down now that
- PG vector is unsorted
- * [multipath] move select_*() to propsel.c
- * [multipath] move devinfo() to devinfo.c
- * [multipath] move h/b/t/l fetching to sysfs_devinfo()
- * [multipath] move devt2devname() to devinfo.c so we can
- use it from dmparser.c too
- * [multipath] introduce select_alias() and clarify a bit
- of code
- * [multipath] don't sort PG anymore. We want the map as
- static as possible.
- * [multipath] fix a segfault in apply_format() triggered
- when no config file found.
- * [multipath] kill unused vars all over the place
- * [multipath] add a struct pathgroup in struct multipath
- Store the pathvec in it. We now have a place to store
- PG status, etc ...
- * [multipath] new dmparser.c, with disassemble_map(),
- disassemble_status()
- * [multipath] suppress *selector_args keywords. Merge
- in the selector string. Update config file templates.
-
-2004-11-26 multipath-tools-0.3.8
-
- * [priority] teach multipath to read callout keywords
- formatted as /sbin/scsi_id -g -u -s /block/%n
- Apply one substitutions out of :
- * %n : blockdev basename (ie sdb)
- * %d : blockdev major:minor string (ie 8:16)
- update sample config files
- * [priority] fix find_controler(). Now works, verified
- on IBM T200 at OSDL (thanks again, Dave). Add to the
- main build process
- * [multipath] add a controler specific "prio_callout"
- keyword. Noticed by Ake
- * [multipath] normalize the debug ouput
- * [multipath] add select_getuid(). De-spaghetti
- devinfo() thanks to that helper.
- * [libmultipath] add VECTOR_LAST_SLOT macro.
- multipath/dict.h now use it heavily.
- * [multipath] policies selectors speedup and cleanup
- (pgpolicy, features, hwhandler, selector)
- * [multipath] new "flush" command flag
- * [libmultipath] add dm_type() and dm_flush_maps()
- * [multipath] move dm_get_map() to libmultipath
- * [multipath] rename iopolicy to pgpolicy everywhere.
- Dual terminology was getting confusing.
- * [multipath] assemble_map() to always set next_pg to 1
- for now.
- * [multipath] update config file to show new keywords.
- Add an IBM array tested at OSDL.
- * [multipath] fork select_iopolicy() from setup_map()
- * [multipath] introduce select_features() and
- select_hwhandler(). Should merge select_* one day ...
- * [multipath] add features and hardware_handler keywords
- and use them in the map setup
- * [build] make clean really clean. Noticed by Dave Olien,
- OSDL
- * [multipath] group_by_serial bugfix
- * [multipath] dm_addmap() return value fix. Now multipath
- really creates the maps
- * [multipath] try dm_log_init_verbose() instead of dup()
- + close() to silence libdevmapper (Ake at umu)
- * [libcheckers] remove checkpath() wrapper, obsoleted by
- the "fd in context" changes
- * [multipathd] let pathcheckers allocate their context.
- No more over or unneeded allocation. Suggested by Lars,
- Suse
- * [multipathd] store the pathcheckers fd in their context.
- No more open / close on each check. Suggested by Lars,
- Suse
-
-2004-11-05 multipath-tools-0.3.7
-
- * [multipathd] fix off by one memory allocation (Hannes,
- Suse)
- * [multipathd] introduce a default callout handler that
- just remembers to put the callout in ramfs, even if the
- daemon has no direct use of them. multipath need some
- that where forgotten, so parse them and use that default
- handler.
- * [libcheckers] emc_clariion checker update (Lars, Suse)
- * [build] exit build process on failure (Lars, Suse)
- * [kpartx] exit early if DM prereq not met
- * [multipath] exit early if DM prereq not met
- * [libmultipath] new dm_prereq() fn to check out if all DM
- prerequisites are met
- * [libmultipath] move callout.[ch] function in there.
- multipath and multipathd impacted
- * [libmultipath] move dm_* function in there. kpartx,
- multipath are impacted
- * [priority] pp_balance_lun should use DM_DEVICE_TABLE ioctl
- instead of DM_DEVICE_STATUS to find out paths from the
- primary path groups.
- * [klibc] drop in "Stable" version 0.190
- * [build] add manpages for kpartx and multipathd (Patrick
- Caulfield)
- * [build] use system's sysfs for multipathd linking
- * [build] make glibc the default build
- * [build] "make BUILD=klibc" is enough, deprecate the
- "make BUILD=klibc klibc" synthax
-
-2004-10-30 multipath-tools-0.3.6
-
- * Patrick Caulfield took over debian packaging. Showing
- evident expertise, his first wish is to see debian/
- disappear. :) So be it.
- * [libmultipath] add a vector_foreach_slot macro. Still
- needs an iterator but saves 1 line per loop occurence and
- tame this UPPERCASE MACROS bad taste.
- * [multipathd] don't load sg anymore on multipathd startup
- * [multipathd] change killall for kill `cat $PIDFILE` in
- init script (Jaime Peñalba & Cesar Solera)
- * [multipathd] the fork fallback was borked (just exiting)
- noticed by Jaime Peñalba & Cesar Solera
- * [multipathd] try without the FLOATING_STACKS flag. Does
- it matter anyway ?
- * [multipathd] merge clone_platform.h from LTP and cover
- the hppa special case.
- * [multipath] since we will be able to create a devmap with
- paths too small, don't rely anymore on the first path's
- size blindly : verify the path is up, before assigning its
- size to the multipath
- * [priority] add a path priority fetcher to balance LU accross
- controlers based on the controler serial detection. Untested
- but provides a good example of what can be done with the
- priority framework.
- * [priority] create subdir and drop a test pp_random
- * [multipath] add dev_t reporting to print_path() to ease
- devmap decoding by humans
- * [multipath] change default path priority to 1
- * [multipath] add wits to the sort_by_prio policy, so that
- sort_pathvec_by_prio() is now useless. Remove it.
- * [multipath] invert sort_pg_by_summed_prio sort order :
- highest prio leftmost
- * [libmultipath] add vector_del_slot
- * revert multipath.rules change : devmap_name still takes
- "major minor" and not "major:minor" as argument
- * Makefile refinement : you can now enter any tool directory
- and build from here, deps are solved
-
-2004-10-26 multipath-tools-0.3.5
-
- * [multipathd] fix broken test for path going up or shaky
- that kept executing multipath when it shouldn't
- * change multipath.dev to exit early when udev' DEVNAME is
- a devmap (/dev/dm-*). This avoids a recursion case when
- the kernel devmapper keeps removing a map after multipath
- configures it.
- * change multipath.rules to follow the new -D synthax
- * [multipath] "-D major minor" synthax changed to
- "-D major:minor" to match the sysfs attribute value.
- This change removes a few translations in multipath and
- multipathd.
- * [multipath] fix segfault in test if conf->dev is a devmap
- (the one forwarded by MikeAnd)
- * SG_IO ioctl seem to work in lk 2.6.10+, so remove all sg
- device knowledge and advertise (here) the new dependency.
- * [multipath] remove unused do_tur()
- * [multipath] fix sort_pg_by_summed_prio(), and don't add up
- failed path priority
-
-2004-10-26 multipath-tools-0.3.4
-
- * [multipathd] exec multipath precisely : pass in the path
- or the devmap to update. No more full reconfiguration, and
- really use the reinstate feature of multipath.
- * [multipathd] check all paths, not only failed ones. Path
- checker now trigger on state change (formerly triggred on
- state == UP condition)
- * [multipathd] incremental updatepaths() instead of scrap /
- refresh all logic.
- * [multipathd] path checkers now take *msg and *context
- params. consensus w/ lmb at suse. tur.c modified as example
- * [multipath] assemble maps in PG vector descending order to
- fit the layered policies design
- * [multipath] stop playing with strings in pgpolicies, as it
- uses more memory and looses info for no gain
- * [multipath] remove lk2.4 scsi ioctl scsi_type remnant
- * [multipath] layered pgpolicies : (see pgpolicies.c)
- * group_by_status
- * group_by_serial | multibus | failover | group_by_prio
- * sort_pg_by_summed_prio
- thus remove duplicated failedpath logic in pgpolicies
- * [libmultipath] add vector_insert_slot
- * [checkers] framework for arbitrate checkers return values
- * [multipathd] scrap yet another reinvented wheel in the
- name of the LOG macro : learn the existance of setloglevel
- and LOG_UPTO macro
- * glibc make with "make BUILD=glibc", asked by lmb at suse
-
-2004-10-20 multipath-tools-0.3.3
-
- * [checkers] add the emc_clariion path checker (lmb at Suse)
- * [multipath] introduce safe_snprintf macro to complement the
- safe_sprintf. Needed to cover the sizeof(pointer) cases
- pointed by Dave Olien at OSDL
- * [multipath] move to the common libchecker framework and
- activate the selector
- * [multipath] fix an iopolicy selector bug (initialized lun
- iopolicy overrode controler-wide iopolicy)
- * [multipathd] cleanly separate out the checker selector, as
- done with iopolicy selector
- * [multipathd] move out the checkers into a common libcheckers
- * [multipath] fix the anti-parallel-exec logic : use a write
- lease for the task. From Dave Olien at osdl.
- * [multipath] fix reinstate : pass a devt, not a devname
-
-2004-10-16 multipath-tools-0.3.2
-
- * [multipath] add path reinstate logic :
- * if a path is given as multipath arg
- * if the map containing that path already exists
- * if this map is the same as the that would be
- created by this multipath run
- * THEN reinstate the path
- multipathd is is thus unchanged, while now supporting
- reinstate
- * audit and ensafe all sprintf usage
- * [multipath] fix the annoying \n after each dev_t in
- params string reporting
- * [multipath] print out devmaps in "-v2 -d" mode
- * [kpartx] bump up the params string size (lmb at suse)
- * [kpartx] replace sprintf by snprintf (lmb at suse)
- * [kpartx] initialize some more vars (lmb at suse)
- * [multipath] mp->pg == NULL safety net before calling
- assemble_map() (for Andy who happen to hit the bug)
- * [multipath] last rampant bug in map CREATE or UPDATE switch
- logic due to the device alias feature
- * [kpartx] zeroe "struct slice all" (lmb at suse)
-
-2004-10-11 multipath-tools-0.3.1
-
- * [kpartx] move back to getopt, originaly removed from the
- original partx because of lack of implementation in klibc
- * [kpartx] don't map extended partitions
- * [kpartx] add a -p command flag to allow admin to force a
- delimiting string between disk name and part number. When
- specified always use it, when unspecified use 'p' as a delim
- when last char of disk name is a digit, NUL otherwise.
- * [kpartx] clean up
- * bump klibc to 0.182
- * one step further : use klibc MCONFIG for all klibc specific
- FLAGS definitions, ie massive Makefile.inc cleanup
- * follow the klibc compilation rules by appending its OPTFLAGS
- to multipath-tools' CFLAGS. This corrects the segfaults seen
- on i386 where klibc is built with regparm=3 and tools are not
- * [multipathd] fall back to fork when clone not available
- like in Debian Woody
- * [kpartx] move .start and .size from uint to ulong (Ake)
- * briefly document system-disk-on-multipath in the FAQ file
-
-2004-10-06 multipath-tools-0.3.0
-
- * first cut at making scripts to create multipath-aware initrds
- those scripts are tested on Debian SID, and must be copied into
- /etc/mkinitrd/scripts. it works here.
- * [multipath] verify presence of the /sys/block/... node before
- reading sysfs attributes. Avoids libsysfs and scsi_id stderr
- garbage
- * [multipath] move down the stderr close (Ake Sandgren at umu.se)
- * [multipath] don't care about 0-sized mp (Ake Sandgren at umu.se)
- * [multipath] bump mp size field to ulong (Ake Sandgren at umu.se)
- * [multipath] replace quiet/verbose flags by a verbosity one.
- introduce a new verbosity level : 1 == print only devmap names
- thus we can feed kpartx with that output
- * [multipath] update man page to reflect the hotplug.d -> dev.d
- transition and replace the obsolete group_by_tur policy by the
- forgotten group_by_prio
- * [multipath] provide a /etc/udev/rules.d/multipath.rules for
- multipath devices naming. Cleaner than the previously suggested
- rule addition in the main udev.rules
- * [multipath] move out of hotplug.d to dev.d : kill synchronisation
- problems between device node creation and multipath execution.
- Incidentally the unfriendly $DEVPATH param become a friendly
- $DEVNAME (simply /dev/sdb)
- * [multipath] rework the iopolicies name-to-id & id-to-name
- translations. kills the last compilation warning here too
- * [kpartx] kill last compilation warnings
- * bump klibc to 0.181
- * add the debian/ packaging dir (make deb)
- * prototype __clone & __clone2
-
-2004-09-24 multipath-tools-0.2.9
-
- * [multipathd] finally tame the clone compilation glitch on IA64
- move from sys_clone to __clone / __clone2
- * [kpartx] rework from Stephan Bader, IBM :
- * handle s390x arch
- * endianness fixes
- * push the partname string size to handle wwwids
- * quieten implicit cast warnings
- * [multipath] add an 'alias' multipath keyword for friendlier device
- names. This was "asked" by OSDL' CGL board of secret reviewers
- * [multipath] last pass with JBOD and parallel SCSI support :
- hard-code scsi_id as a fallback when disk strings doesn't match
- any hwtable entry
- * [multipath & multipathd] change the parser to not coalesce
- consecutive spaces (Patrick Mansfield)
- * [multipath] remove the [UN]: output prefix, so that stdout can be
- easily fed to a tool like dmsetup
- * [multipathd] DEBUG=3 logs more readable/usefull
- * [multipathd] add a multipath_tool config keyword
- * [multipathd] move to execute_program() like multipath already did
- * [multipath] don't print the "no path" msg in quiet mode
- * [multipathd] include linux/unistd.h for _syscall2
- definition on RedHat systems. Remove superfluous
- asm/unistd.h include
- * [libsysfs] forked : last version uses mntent, which
- klibc doesn't provide. That, plus the fact we use
- only 1/3 of the lib, pushed me to freeze the version
- and strip all unused stuff.
- * [multipathd] prepare_namespace() cleanup : no more "multipath"
- special casing since we push it to binvec vector, like the other
- callouts detected in the config file.
-
-2004-08-13 multipath-tools-0.2.8
-
- * [multipathd] setsched prio to RT
- * [multipath] massive include cleanup
- * [multipath] add a "prio_callout" keyword
- first user will be SPC-3 ALUA priority field fetcher
- from IBM
- * [multipath] reenable stdout on some error paths
- * [build] spilt KERNEL_DIR into KERNEL_SOURCE &
- KERNEL_BUILD as per 2.6 and SuSe convention
- * [klibc] kill warnings due to awk parsing wrong locale in
- arch/i386/MCONFIG
- * [multipath] implement a generic group_by_prio pgpolicy
- * [multipath] fix the broken failover pgpolicy
-
-2004-07-24 multipath-tools-0.2.7
-
- * [multipath] args parser moved to getopt
- <genanr@emsphone.com>
- * [multipath] zero conf->hotplugdev at allocation
- <genanr@emsphone.com>
- * [multipath] clean up failed devmap creation attempt
- * [libs] update to libdevmapper 1.00.19
- * [multipath] framework for claimed device skipping
- still lacks a reliable way to know if the device is
- claimed and by who (fs, swap, md, dm, ...). If you
- think it is valid to let libdevmapper hit the wall,
- please speak up and tell so.
- * [multipath] shut down stderr when calling into libdm
- * [multipath] reformat the verbose output
- * [multipath] framework for path priority handling (ALUA)
- * [multipath] kill all reference to group_by_tur
- * [multipath] integrate path state logic into multibus &
- failover pgpolicies. This obsoletes the group_by_tur one
- which is now the same as multibus.
- * [multipath] zalloc mp structs to avoid garbage in ->size
- * bump version requisite for scsi_id to 0.6 to support the new
- '-u' flag (s/ /_/ for proper JBOD device map naming)
- * [multipath] correct the for(;;) limits to accept 1-slot
- pathvecs
- * [multipath] push WWID_SIZE to 64 char (scsi_id w/ JBODs)
- * [multipath] add a exit_tool() wrapper fn for runfile unlink
- * [multipath] add a "path_grouping_policy" keyword in the
- "defaults" block.
- * [multipath] add a "getuid_callout" keyword in the
- "defaults" block. Now multipath is going to work with JBODs
- * [multipath] fix segfault when pathvec is empty after
- get_pathvec()
- * move to template based specfile to avoid regular version skew
-
-2004-07-16 multipath-tools-0.2.6
-
- * [multipathd] implement the system-disk-on-SAN safety net
- * [multipathd] add exit_daemon() wrapper function
- * [multipathd] mlockall() all daemon threads
- * [multipath] fix a bug in the mp_iopolicy_handler that kept
- the iopolicy per LUN override from working
- * [multipath] display the tur bit value in print_path
- as requested by SUN
- * try to open /$udev/reverse/$major:$minor before falling back
- to mknod
- * add "udev_dir" to the defaults block in the config file
- * merge "daemon" & "device_maps" config blocks into a new
- "defaults" block
- * [multipath] properly comment the config file
- * [multipath] generalize the dbg() macro usage
- Makefile now has a DEBUG flag
- * [multipath] move to callout based WWID fetching. Default to
- scsi_id callout. I merged execute_program from udev for that
- (so credit goes to GregKH)
- * [multipath] get rid of "devnodes in /dev" assumption
- ie move to "maj:min" device mapper target synthax
-
-2004-07-10 multipath-tools-0.2.5
-
- * [multipathd] fix misbehaviour noted by <genanr@emsphone.com>
- improper tar directive in Makefile on some systems
- * [multipathd] fix bug noted by <genanr@emsphone.com>
- get_devmaps fills a private vector and forget to pass its
- address to caller
- * [multipath] extend EVPD 0x83 id fetching logic.
- Code borrowed from scsi_id (thanks goes to Patrick
- Mansfield @IBM) and merged by Hannes Reinecke @SUSE
- * [multipathd] fix regression noted by <genanr@emsphone.com>
- (segfault when no config file)
-
-2004-06-20 multipath-tools-0.2.4
-
- * [multipathd] break free from system's libsysfs for now
- as it is not that common these days
- * [multipath] introduce per LUN policies in the config
- file : path_grouping_policy, path_selector and
- path_selector_args are supported.
- See updated sample config file.
- * [multipath] move ->iopolicy to multipath struct (from
- path struct)
- * [multipath] fill the voids left in the config file with
- defaults
- * [multipath] group config & flags in a global struct *
- * [multipath] fix segfault when no config file (was a
- regression since hwtable vectorisation in 0.2.2)
- * [multipath] default path selector override in config file
- * [multipath] don't play with strings in pgpolicies, leave
- that to a new assemble_map fn. policies now use vector
- * [multipathd] compilation fix for gentoo (Franck Denis)
- * [multipath] strcmp fix (Franck Denis)
-
-2004-06-14 multipath-tools-0.2.3
-
- * [multipath] group_by_serial try to be smart with LUN
- balancing across controlers (for STK / LSI) :
- 1st multipath : 1st pg made of path through 1st controler
- 2nd multipath : 1st pg made of path through 2nd controler
- 3rd multipath : 1st pg made of path through 1st controler
- ...
- * [multipath] drop .pindex[] in struct multipath in favor
- of a *paths vector : much cleaner
- * [multipath] fix group_by_serial pgpolicy broken by
- vectorisation in 0.2.2
- * add a StorageTek array in the sample multipath.conf
- * [multipathd] strcmp fix from Franck Denis
- * [multipathd] convert to vector api
- * [multipathd] add a configfile option for path checking
- interval. See sample configfile for synthax.
-
-2004-06-07 multipath-tools-0.2.2
-
- * [multipath] leave out 2.4 compat code. Is there
- interest anyway ?
- * [multipath] convert all_paths table to vector api.
- Rename to pathvec. Get rid of max_devs
- * [multipath] convert mp table to vector api
- * convert blacklist to vector api
- * 2.6.7-rc? adds _user annotations to scsi/sg.h, causing
- compilation breakage. Add a "#define _user" in all
- sg_include.h (and remove cruft)
- * merge a real parser (from keepalived) courtesy of
- Alexandre Cassen. Now multipath and multipathd share a
- config file. This comes with a nice vector lib.
- * devnode blacklist moved from hardcoded to config file
- * Guy Coates noted -O2 CFLAGS lead to multipathd crashes
- on IA64. Remove the needless optimisation for now.
-
-2004-06-05 multipath-tools-0.2.1
-
- * [multipath] add a flag to inihibit the final SIGHUP to
- multipathd. Needed to avoid recursion with the correction
- below
- * [multipathd] devmap event now triggers a multipath exec
- in addition to the usual updatepaths()
- * [multipathd] move checkers from sg_io on BLK onto CHR
- readsector0 goes from read to sg_read
- * [multipathd] rely on sysfs for failedpaths enum and no
- longer on the device mapper
- * [multipathd] convert get_lun_strings from ioctl to sysfs
- so we can benefit from strings persistency for failed
- paths
- * [multipath] readconfig() to take only 8 char from vendor
- string (ake)
- * [multipath] remove unecessery and wrong getuid == NULL
- check from devinfo() (ake)
- * [multipathd] make readsector0 open path O_DIRECT
- * [multipathd] sizeof(path) -> sizeof(struct path) (MikeC)
- * [Makefile] don't try to install and uninstall libs
- * [devmap_name] kill the wrong trailing '\n'
- (Mike Christie)
- * [kpartx] works with device nodes outside /dev
- * [kpartx] correctly display the delimiter in partition
- name outputs
-
-2004-05-17 multipath-tools-0.2.0
-
- * change the default klibc by greg's :
- corrects the segfaults reported by Ling Hwa Hing
-
-2004-05-16 multipath-tools-0.1.9
-
- * break free from udev : package klibc and libsysfs
- * add a spec file and a "make rpm" rule
- * pensum on klibc changes needed :
- * mmap.c & fork.c : invert includes
- * make clean wipes .*.d
- * auto create the linux symlink
- * remove tools and specfiles (files and Makefile
- targets)
-
-2004-05-15 multipath-tools-0.1.8
-
- * Makefiles cleanup and factorisation
- * Compilation fixes for non-ix86 archs, tested on x86_64
- * strip execs harder for a 10% size reduction
- * blacklist /dev/fd* and /dev/loop*
- * dmadm works with sysfs nodes with '!' (cciss for ex)
-
-2004-05-10 multipath-tools-0.1.7
-
- * bugfixes from Andy <genanr@emsphone.com> :
- * read the last line of the config file
- * add an entry for the 3PARData storage ctlrs
- * read the last char of vendor and model strings
-
-2004-04-25 multipath-tools-0.1.6
-
- * add the dmadm WIP tool (read MD superblocks and create
- corresponding devmaps when possible)
- * plug fd leak in TUR path checker
-
-2004-03-25 multipath-tools-0.1.5
-
- * kpartx to manage the nested bdevs as /dev/cciss/c0d0.
- parts are named sysfs style : cciss!c0d0p*
- * kpartx loop support
- * kpartx do DM updates if part maps already present
- * merge kpartx for partitioned multipath support
- * add get_null_uid to getuid methods. assign it the "0" index
- devices with this getuid are thus ignored by multipath.
- warning : change /etc/multipath.conf (get_evpd_wwid == 1)
- * mv all_scsi_ids out of the 2.6 code path, into the 2.4 one
- * unlink runfile on malloc exit path
- * update multipath manpage (MikeC)
-
-2004-03-17 multipath-tools-0.1.4
-
- * multipath clean up
- * split default hw table in hwtable.h
- * split grouping policies in pgpolocies.c
- * pass *mp to setup_map instead of mp[]+index
- * ensure defhwtable is used if /etc/multipath.conf is buggy
- * hwtable is not global anymore
- * unlink the runfile in various error paths
-
-2004-03-13 multipath-tools-0.1.3
-
- * multipath config tool now has a config file parser
- (did I say I make the ugliest parsers ?)
- * example multipath.conf to put in /etc (manualy)
-
-2004-03-12 multipath-tools-0.1.2
-
- * detach the per devmap waiter threads
- * set the thread stack size to lower limits
- (VSZ down to 4MB from 85 MB here)
-
-2004-03-06 multipath-tools-0.1.1
-
- * include dlist.h in multipath main.c (PM Hahn)
- * typo in hotplug script (PM Hahn)
- * pass -9 opt to gzip for manpages (PM Hahn)
-
-2004-03-05 multipath-tools-0.1.0
-
- * add the group_by_tur policy
- * add the multipathd daemon for pathchecking & DM hot-reconfig
- * multipath doesn't run twice
- * massive cleanups, and code restructuring
- * Avoid Kernel Bug when passing too small a buffer in do_inq()
- * Sync with 2.6.3-udm4 target synthax (no more PG prio)
-
-2004-02-21 multipath-018
-
- * From the Debian SID inclusion review (Philipp Matthias Hahn)
- * use DESTDIR install prefix in the Makefile
- * add man pages for devmap_name & multipath
- * correct libsysfs.h includes
- * fork the hotplug script in its own shell
- * Sync with the kernel device mapper code as of 2.6.3-udm3
- ie. Remove the test interval parameter and its uses
- * Remove superfluous scsi parameter passed from hotplug
- * Add the man pages to the [un]install targets
-
-2004-02-17 multipath-017
-
- * remove the restrictive -f flag.
- Introduce a more generic "-m iopolicy" one.
- * remove useless "int with_sysfs" in env struct
-
-2004-02-04 multipath-016
-
- * add a GROUP_BY_SERIAL flag. This should be useful for
- controlers that activate they spare paths on simple IO
- submition with a penalty. The StorageWorks HW defaults to
- this mode, even if the MULTIBUS mode is OK.
- * remove unused sg_err.c
- * big restructuring : split devinfo.c from main.c. Export :
- * void basename (char *, char *);
- * int get_serial (int, char *);
- * int get_lun_strings (char *, char *, char *, char *);
- * int get_evpd_wwid(char *, char *);
- * long get_disk_size (char *);
- * stop passing struct env as param
- * add devmap_name proggy for udev to name devmaps as per their
- internal DM name and not only by their sysfs enum name (dm-*)
- The corresponding udev.rules line is :
- KERNEL="dm-[0-9]*", PROGRAM="/sbin/devmap_name %M %m", \
- NAME="%k", SYMLINK="%c"
- * remove make_dm_node fn & call. Rely on udev for this.
- * don't rely on the linux symlink in the udev/klibc dir since
- udev build doesn't use it anymore. This corrects build breakage
-
-2004-01-19 multipath-013
-
- * update the DM target synthax to the 2.6.0-udm5 style
-
-2003-12-29 multipath-012
-
- * check hotplug event refers to a block device; if not exit early
- * refresh doc
- * add the uninstall target in Makefile
-
-2003-12-22 multipath-010
-
- * tweak the install target in Makefile
- * stop passing fds as argument : this change enable a strict
- segregation of ugly 2.4 code
- * sysfs version of get_lun_strings()
- * be careful about the return of get_unique_id() since errors
- formerly caught up by if(open()) in the caller fn are now returned
- by get_unique_id()
- * send get_serial() in unused.c
- * introduce dm-simplecmd for RESUME & SUSPEND requests
- * split add_map() in setup_map() & dm-addmap()
- * setup_map() correctly submits "SUSPEND-RELOAD-RESUME or CREATE"
- sequences instead of the bogus "RELOAD or CREATE"
- * don't print .sg_dev if equal to .dev (2.6) in print_path()
- * since the kernel code handles defective paths, remove all
- code to cope with them :
- * move do_tur() to unused.c
- * remove .state from path struct
- * remove .state settings & conditionals
- * add a cmdline switch to force maps to failover mode,
- ie 1 path per priority group
- * add default policies to the whitelist array (spread io ==
- MULTIBUS / io forced to 1 path == FAILOVER)
- * move get_disk_size() call out of add_map() to coalesce()
- * comment tricky coalesce() fn
- * bogus unsused.c file renamed to unused.c
-
-2003-12-20 multipath-010
-
- * big ChangeLog update
- * start to give a little control over target params :
- introduce cmdline arg -i to control polling interval
- * cope with hotplug-style calling convention :
- ie "multipath scsi $DEVPATH" ... to avoid messing with
- online maps not concerned by an event
- * example hotplug agent to drop in /etc/hotplug.d/scsi
- * revert the run & resched patch : unless someone proves me
- wrong, this was overdesigned
- * move commented out functions in unused.c
- * update multipath target params to "udm[23] style"
- * mp target now supports nr_path == 1, so do we
- * add gratuitous free()
- * push version forward
-
-2003-12-15 multipath-009
-
- * Make the HW-specific get_unique_id switch pretty
- * Prepare to field-test by whitelisting all known fibre array,
- try to fetch WWID from the standard EVPD 0x83 off 8 for everyone
- * configure the multipath target with round-robin path selector and
- conservative default for a start (udm1 style) :
- yes it makes this release the firstreally useful one.
- * temporarily disable map creation for single path device
- due to current restrictive defaults in the kernel target.
- Sistina should work it out.
- * correct the strncmp logic in blacklist function.
- * update the Makefiles to autodetect libgcc.a & gcc includes
- "ulibc-style". Factorisation of udevdirs & others niceties
- * drop a hint about absent /dev/sd? on failed open()
- * implement a reschedule flag in /var/run.
- Last thing the prog do before exit is check if a call to multipath
- was done (but canceled by /var/run/multipath.run check) during its
- execution. If so restart themain loop.
- * implement a blacklist of sysfs bdev to not bother with for now
- (hd,md, dm, sr, scd, ram, raw).
- This avoid sending SG_IO to unappropiate devices.
- * Adds a /var/run/multipath.run handling to avoid simultaneous runs.
- * Remove a commented-out "printf"
- * drop a libdevmapper copy in extras/multipath;
- maybe discussions w/Sistina folks will bring a better solution
- in the future.
- * drop a putchar usage in libdevmapper to compile cleanly with klibc
- * drop another such usage of my own in main.c
- * massage the Makefile to compile libdevmapper against klibc
- * use "ld" to produce the binary rather than "gcc -static"
- * stop being stupid w/ uneeded major, minor & dev in main.c:dm_mk_node()
- * reverse to creating striped target for now because the multipath
- target is more hairy than expected initialy
- * push the version code to 009 to be in synch w/ udev
-
-2003-11-27 multipath-007
-
- * removes sg_err.[ch] deps
- * makes sure the core code play nice with klibc
- * port the sysfs calls to dlist helpers
- * links against udev's sysfs (need libsysfs.a & dlist.a)
- * finally define DM_TARGET as "multipath" as Joe posted the code today
- (not tested yet)
- * push version forward (do you want it in sync with udev version?)
-
-2003-11-19 multipath-006
-
- * merged in udev-006 tree
-
-2003-09-18 multipath-0.0.1
-
- * multipath 0.0.1 released.
- * Initial release.
+- pre-0.4.5
+ http://christophe.varoqui.free.fr/wiki/wakka.php?wiki=ChangeLog
+- post-0.4.5
+ http://www.kernel.org/git/gitweb.cgi?p=linux/storage/multipath-tools/.git;a=log
projects / platform / upstream / multipath-tools.git / commitdiff