ChangeLog

   1 2009-11-02 Brian Behlendorf <behlendorf1@llnl.gov>
   2
   3         * : Tag spl-0.4.6
   4
   5         * config/spl-build.m4: Cleanup --enable-debug-* configure options.
   6         --enable-debug=<default no>  generic debug support.
   7         --enable-debug-kmem=<default yes> basic kmem and slab accounting.
   8         --enable-debug-kmem-tracking=<default no> detailed kmem tracking.
   9         --enable-debug-kstat removed option support always enabled.
  10         --enable-debug-callb removed option which never did anything.
  11
  12         * module/spl/spl-atomic.c: Reimplemented atomic functions by
  13         layering them on top of the Linux atomic functions.  This improves
  14         performance by removing the need for a global spinlock.
  15
  16         * module/spl/spl-debug.c: Rebase cmn_err on vcmn_err.  Handle the
  17         case where the message contains a leading ! which means only send
  18         it to syslog.  And suppress warnings for messages which do not end
  19         in a '\n'.
  20
  21         * module/splat/splat-ctl.c: Update to use kobject_set_name() for
  22         increased portability.
  23
  24         * module/spl/spl-generic.c: Set cwd to '/' for the task during
  25         module load for SPL dependent modules.  Under Solaris this is
  26         the expected behavior, on a Linux system your cwd remains set
  27         to whatever the tasks cwd was when loading a module.
  28
  29         * module/spl/spl-mutex.c: Reimplemented mutexs for improved
  30         performance and cleaner integration with the Linux kernels built
  31         in lock analyzer.  As of 2.6.29 based kernels adaptive mutexs
  32         are supported, for these newer kernels task_curr() does not need
  33         to be exported.  Finally, DEBUG_MUTEX support was dropped in
  34         favor of more detailed kernel profiling which is now available.
  35
  36         * module/spl/spl-rwlock.c: Reimplemented rwlocks for improved
  37         performance and cleaner integration with the Linux kernels built
  38         in lock analyzer.  Additionally, the rwlock regression tests were
  39         improved to help validate correctness.
  40
  41         * spl-modules.spec.in: Various spec file tweaks for the supported
  42         distros: RHEL5, RHEL6, SLES10, SLES11, Chaos4, Fedora 11.
  43
  44 2009-08-04 Brian Behlendorf <behlendorf1@llnl.gov>
  45
  46         * : Tag spl-0.4.5
  47
  48         * FC11 and SLES11 support: This includes all compatibility changes
  49         to support 2.6.29 based kernels and the required build system
  50         improvements.
  51         * module/spl/spl-module.c: Register a basic compat ioctl handler
  52         for 32-bit user vs 64-bit kernel compatibility.  This is the default
  53         build environment for all 64-bit SLES systems.
  54         * config/spl-build.m4: Check arch/default path when detecting kernel
  55         objects under SLES.  We still preferentially use arch/arch if
  56         available but if that fails it is acceptable to use default.
  57         * module/spl/spl-vnode.: Use HAVE_PATH_IN_NAMEIDATA compat macros
  58         for maximum kernel compatibility.
  59         * config/spl-build.m4: Remove LINUXINCLUDE from autoconf wrapper.
  60         This breaks the 2.6.28+ kernels build system, all kernel build systems
  61         at least post 2.6.16 will set this properly so we should not.
  62         * include/sys/vmsystm.h, module/spl/spl-kmem.c: Perferentially use the
  63         global_page_state() API when your kernel supports the required enums.
  64         * include/sys/debug.h: Add ASSERTV macro to simplify removing
  65         variables (the V in ASSERTV) which are only used in ASSERT().
  66         * include/sys/debug.h: Disable stack overflow checking by default
  67         when build with --enable-debug, modern kernels now provide this.
  68         * patches/fc11-spl-export-symbols.patch: Recommended missing symbols
  69         patch for FC11.  This is not required for correct functionality but
  70         it is recommended for individuals who are already patching the kernel.
  71
  72         * Additional Solaris API emulation:
  73         * include/sys/taskq.h: Add basic taskq support for the flag
  74         TASKQ_THREADS_CPU_PCT which is used to scale the number of threads
  75         based on the number of online CPUs.
  76         * include/sys/file.hi, module/spl/spl-generic.c: Add support for
  77         fake ioctls which originate from the kernel instead of user space.
  78         * include/sys/acl.h: Add ACE_ALL_PERMS ACL definition.
  79         * include/sys/cred.h, module/splat/splat-cred.c: Add basic credential
  80         support and splat regression tests.
  81
  82         * Bug fixes:
  83         * include/sys/isa_defs.h: Add more endianess paranoia.
  84         * module/spl/spl-time.c: Integer overflow after ~164 days.
  85         * include/sys/debug.h: NULL dereference by tcd_for_each().
  86         * module/splat/splat-kmem.c: Allow kmem or vmem based slabs for
  87         slab_lock and slab_overcommit tests.  This may still be an issue on
  88         32-bit systems due to the small virtual address space.
  89         * module/spl/spl-module.c: Positive Solaris ioctl return codes are
  90         need to be negated for use by libc to ensure errno is set correctly.
  91
  92 2009-07-02 Brian Behlendorf <behlendorf1@llnl.gov>
  93
  94         * : Tag spl-0.4.4
  95
  96         * : Generic distro friendly build system / packaging improvements
  97         for rpm based distros including CHAOS, RHEL, Fedora, and SLES.
  98
  99         spl-<version>.src.rpm
 100         - Fully rebuildable source rpm for utils.
 101         spl-modules-<version>.src.rpm
 102         - Fully rebuildable source rpm for kernel modules.
 103
 104         spl-<version>.<arch>.rpm
 105         - Binary rpm for utils.  The utils in this package are compatible
 106         with all spl-module rpms of the same version.
 107
 108         spl-modules-<verion>-<kernel>.arch.rpm
 109         - Binary rpm containing the kernel modules for a specific kernel build.
 110           The package name contains the kernel version and you should have one
 111           of these packages installed to match every kernel on your system.
 112         spl-modules-devel-<verion>-<kernel>.arch.rpm
 113         - Binary rpm containing development header and module symbols needed
 114           for building additional kernel modules which are dependent on the
 115           spl module.
 116
 117         * : Added SLES10 support.  This includes all compatibility
 118         changes to support 2.6.16 based kernels and the required
 119         build system improvements.
 120
 121         * : Build System changes for SLES10:
 122         - Exclude -obj when detecting installed kernel source.
 123         - Detect -obj directory for out of tree kernel builds.
 124         - Allow kernel build system to set CC to ensure -m64 is set properly.
 125           This is an issue on 64-bit SLES systems which by default always
 126           build 32-bit binaries (unlike RHEL/Fedora which default to 64-bit)
 127
 128         * : Configure Checks added for SLES10:
 129         - div64_64() renamed to div64_u64() as of 2.6.26.
 130         - global_page_state() fuction was introduced in 2.6.18 kernels.
 131           The earlier 2.6.16 based SLES10 must not try and use it,
 132           thankfully get_zone_counts() is still available.
 133         - monotonic_clock() is unavailable __gethrtime() must perform the
 134           HZ division as an 'unsigned long long' because the SPL only
 135           implements __udivdi3(), and not __divdi3() for 'long long'
 136           division on 32-bit arches.
 137         - mutex_lock_nested() was introduced as part of the mutex
 138           validator in 2.6.18, when it is unavailable it is safe to
 139           fallback to using a plain mutex_lock().
 140         - SLES specific API change to vfs_unlink() and vfs_rename() which
 141           added a 'struct vfsmount *' argument.  This was for something
 142           called the linux-security-module, but it appears that it was
 143           never adopted upstream.
 144         - spl_device_create() correctly mapped to class_device_create()
 145           for 2.6.13 to 2.6.17 based kernels, this is the preferred API.
 146         - Prior to 2.6.17 there were no *_pgdat helper functions in
 147           mm/mmzone.c.  Instead for_each_zone() operated directly on
 148           pgdat_list which may or may not have been exported depending on
 149           how your kernel was compiled.  A configure check was added to
 150           determine if you have the helpers or not, and if the needed
 151           symbols are exported.  If they are not exported then they are
 152           dynamically aquired at runtime by kallsyms_lookup_name().
 153
 154         * : Packaging changes for SLES10
 155         - Properly honor --prefix in build system and rpm spec file.
 156         - Add '--define require_kdir' to spec file to support building
 157           rpms against kernel sources installed in non-default locations.
 158         - Add '--define require_kobj' to spec file to support building
 159           rpms against kernel object installed in non-default locations.
 160         - Stop suppressing errors in autogen.sh script.
 161         - Improved logic to detect missing kernel objects when they are
 162           not located with the source.  This is the common case for SLES
 163           as well as in-tree chaos kernel builds and is done to simply
 164           support for multiple arches.
 165         - Moved spl-devel build products to /usr/src/spl-<version>, a
 166           spl symlink is created to reference the last installed version.
 167         - Allow checking for exported symbols in both Module.symvers
 168           and Module.symvers.  My stock SLES kernel ships an objects
 169           directory with Module.symvers, yet produces a Module.symvers
 170           in the local build directory.
 171
 172         * : Added powerpc64 support.
 173         - Enable builds for powerpc64 ISA type.
 174         - Add DIV_ROUND_UP and roundup macros if unavailable.
 175         - Cast 64-bit values for %lld format string to (long long) to
 176           quiet compile warning.
 177
 178         * module/splat/splat-ctl.c: Proper ioctl() 32/64-bit binary
 179           compatibility.  We need to ensure the ioctl data itself is always
 180           packed the same for 32/64-bit binaries.  Additionally, the correct
 181           thing to do is encode this size in bytes as part of the command
 182           using _IOC_SIZE().
 183
 184         * modules/spl/spl-kmem.c: Fixed a long standing bug in the debug
 185           tracing.  The tcd_for_each() macro expected a NULL to terminate
 186           the trace_data[i] array but this was only ever true due to luck.
 187           All trace_data[] iterators are now properly capped by TCD_TYPE_MAX.
 188
 189         * modules/spl/spl-kmem.c: To simplify debugging all symbols aquired
 190           dynamically using spl_kallsyms_lookup_name() are initially poisoned
 191           with SYMBOL_POISON.
 192
 193 2009-03-20 Brian Behlendorf <behlendorf1@llnl.gov>
 194
 195         * : Tag spl-0.4.3
 196
 197         * configure.ac, *Makefile.am: Build system update.  This includes
 198         resolving various build issues and adding support for the remaining
 199         common build targets.  Available targets now include:
 200
 201         - make all        # Build everything
 202         - make install    # Install everything
 203         - make clean      # Clean up build products
 204         - make distclean  # Clean up everything
 205         - make dist       # Create package tarball
 206         - make srpm       # Create package source RPM
 207         - make rpm        # Create package binary RPMs
 208         - make tags       # Create ctags and etags for everything
 209
 210         Extra care was taken to ensure that the source RPMs are fully
 211         rebuildable against Fedora/RHEL/Chaos kernels.  To build binary
 212         RPMs from the source RPM for your system simply run:
 213
 214         rpmbuild --rebuild spl-x.y.z-1.src.rpm
 215
 216         This will produce two binary RPMs with correct 'requires'
 217         dependencies for your kernel.  One will contain all zpl modules
 218         and support utilities, the other is a devel package for compiling
 219         additional kernel modules which are dependent on the spl.
 220
 221         spl-x.y.z-1_<kernel version>.x86_64.rpm
 222         spl-devel-x.y.2-1_<kernel version>.x86_64.rpm
 223
 224         * : FC10 (linux-2.6.27.19) and i686 compatibility update.  The
 225         list of support platforms has been extended to include FC10
 226         systems and x86 architectures.  It should be noted that kernels
 227         older the 2.6.27.19 should work but have not have not been tested.
 228
 229         * configure.ac: Fix build issue preventing spl_config.h from being
 230         cleanly included by dependent packages.
 231
 232         * module/spl/spl-taskq.c: Fix taskq_wait() not waiting bug.
 233
 234         * module/spl/spl-xdr.c: Add XDR implementation provided by Ricardo
 235         Correia from Sun.
 236
 237         * module/spl/spl-kmem.c: Linux VM integration cleanup.
 238
 239         * module/spl/spl-kmem.c: Slab cache improvements and fixes.
 240
 241         * modules/splat/*: Include additional SPLAT regression tests.
 242
 243         * : Various bug fixes are more clearly detailed in the git
 244         commit logs.  For a detailed summary of changes post version
 245         0.4.2 check the git commit logs.
 246
 247         git log -35
 248
 249 2009-02-05 Brian Behlendorf <behlendorf1@llnl.gov>
 250
 251         * : Tag spl-0.4.2
 252
 253         * module/spl/spl-kmem.c include/sys/kmem.h: Slab cache improvements:
 254           - Implement kmem cache alignment.
 255           - Implement slab ageing.
 256           - Optimized slab packing algorithm.
 257           - Fixed deadlock due to calling call kv_free() under the skc_lock.
 258           - Added additional SPLAT test cases
 259           - Performance optimizations
 260
 261         * module/spl/spl-kmem.c include/sys/kmem.h: Linux VM integration.
 262         The Solaris global VM symbols minfree, desfree, lotsfree, needfree,
 263         swapfs_minfree, swapfs_reserve, availrmem, freemem, and physmem are
 264         now available and loosely integrating with the Linux VM.  Some
 265         tuning will undoubtably be needed and these tunables are available
 266         in /proc/sys/kernel/spl/vm/* for this very reason.
 267
 268         * config/spl-build.m4: New configure checks needed when building
 269         against 2.6.27+ kernels.  More work is needed here.
 270
 271         * : Minor cleanup see the 'git log' for full details.
 272
 273 2009-01-21 Brian Behlendorf <behlendorf1@llnl.gov>
 274
 275         * : Tag spl-0.4.1
 276
 277         * : Implement ksid_*, ddi_strto*, and system taskq functionality.
 278         In addition, several other small Solaris compatibility changes
 279         were made, see the 'git log' for full details.
 280
 281 2008-11-26 Brian Behlendorf <behlendorf1@llnl.gov>
 282
 283         * : Tag spl-0.4.0 (Development now done with Git)
 284
 285         * : Imported SPL SVN repo in to Git Repo for core development.
 286
 287 2008-11-26 Brian Behlendorf <behlendorf1@llnl.gov>
 288
 289         * : Tag spl-0.3.5
 290
 291         * : Include META file support.
 292
 293 2008-11-05 Jim Garlick <garlick@llnl.gov>
 294
 295         * : Add autogen.sh products.
 296
 297         * configure.ac : Use AC_CONFIG_AUX_DIR to put autograph products
 298         in ./auotconf.
 299
 300         * autogen.sh : Use --copy to avoid symlinks, remove error
 301         redirection, run aclocal before libtoolize.
 302
 303 2008-11-13 Brian Behlendorf <behlendorf1@llnl.gov>
 304
 305         * include/sys/sunddi.h, modules/spl/spl-module.c : Removed default
 306         udev support from sunddi implementation because it uses GPL-only
 307         symbols.  This support is optionally available for SPL consumers
 308         if they define HAVE_GPL_ONLY_SYMBOLS and license their module as
 309         GPL using the MODULE_LICENSE("GPL") macro.
 310
 311 2008-11-05 Brian Behlendorf <behlendorf1@llnl.gov>
 312
 313         * : Tag spl-0.3.4
 314
 315         * : Coverity clean.
 316
 317         * : Patches from Ricardo M. Correia <Ricardo.M.Correia@sun.com>
 318         applied with minor revisions:
 319
 320                 spl-00-rm-gpl-symbol-notifier_chain.patch
 321                 spl-01-rm-gpl-symbol-set_cpus_allowed.patch
 322                 spl-02-rm-gpl-symbols-device.patch
 323                 spl-03-rm-gpl-symbol-ktime_get_ts.patch
 324                 spl-04-fix-taskq-spinlock-lockup.patch
 325                 spl-05-div64.patch
 326                 spl-06-atomic64.patch
 327                 spl-07-kmem-cleanup.patch
 328                 spl-08-km-sleep-nofail.patch
 329                 spl-09-fix-kmem-track-oops.patch
 330                 spl-10-fix-assert-verify-ndebug.patch
 331
 332 2008-06-30 Brian Behlendorf <behlendorf1@llnl.gov>
 333
 334         * : Tag spl-0.3.3
 335
 336         * : modules/sys/kmem-slab.c : Refined SPL slab to include
 337         per-cpu caches, removed internal hash, other general
 338         performance improvements.  Much work remain but it's pretty
 339         good for an initial implementation.
 340
 341 2008-06-13 Brian Behlendorf <behlendorf1@llnl.gov>
 342
 343         * : modules/sys/kmem-slab.c : Re-implemented the slab to no
 344         longer be based on the linux slab but to be it's own complete
 345         implementation.  The new slab behaves much more like the
 346         Solaris slab than the Linux slab.
 347
 348 2008-06-04 Brian Behlendorf <behlendorf1@llnl.gov>
 349
 350         * : Tag spl-0.3.2
 351
 352         * : Extensive improvements to the build system to detect kernel
 353         API changes so we can flexibly build with a wider range of kernel
 354         versions.  The code has now been testing with the 2.6.18-32chaos
 355         and 2.6.25.3-18.fc9 kernels, however we should also be compatible
 356         with other kernels in the range of 2.6.18-2.6.25.
 357
 358 2008-05-25 Brian Behlendorf <behlendorf1@llnl.gov>
 359
 360         * configure.ac, autoconf/* : Initial pass at resolving
 361         API changes introduced by kernels newer than 2.6.18.
 362
 363 2008-05-21 Brian Behlendorf <behlendorf1@llnl.gov>
 364
 365         * : Tag spl-0.3.1
 366
 367         * : License headers including URCL added for release.
 368
 369 2008-05-21 Brian Behlendorf <behlendorf1@llnl.gov>
 370
 371         * : Tag spl-0.3.0
 372
 373         * configure.ac: Improved autotools support.
 374
 375 2008-04-26 Brian Behlendorf <behlendorf1@llnl.gov>
 376
 377         * include/sys/mutex.h : Implemented a close approximation
 378         of adaptive mutexes.  These changes however required me to
 379         export a new symbol from the kernel proper 'task_curr()'
 380         which means we are now dependant on a patched kernel.
 381
 382 2008-04-24 Brian Behlendorf <behlendorf1@llnl.gov>
 383
 384         * : Tag spl-0.2.1
 385
 386         * modules/spl/spl-proc.c : Add /proc/sys/spl/version.
 387
 388 2008-04-24 Herb Wartens <wartens2@llnl.gov>
 389
 390         * include/sys/kmem.h : Make sure that when calling __vmem_alloc
 391         that we do not have __GFP_ZERO set.  Once the memory is allocated
 392         then zero out the memory if __GFP_ZERO is passed to
 393         __vmem_alloc.
 394
 395 2008-04-16 Herb Wartens <wartens2@llnl.gov>
 396
 397         * modules/spl/spl-kmem.c : Make sure to disable interrupts
 398         when necessary to avoid deadlocks.  We were seeing the deadlock
 399         when calling kmem_cache_generic_constructor() and then an interrupt
 400         forced us to end up calling kmem_cache_generic_destructor()
 401         which caused our deadlock.
 402
 403 2008-02-26 Brian Behlendorf <behlendorf1@llnl.gov>
 404
 405         : Initial commit of the solaris porting layer (spl).  Included
 406         in addition to the source is an initial autoconf / configure
 407         style build system.