ChangeLog

   1 2009-11-20 Brian Behlendorf <behlendorf1@llnl.gov>
   2
   3         * : Tag spl-0.4.7
   4
   5         * config/spl-build.m4: Linux 2.6.31 compat, SPL_AC_2ARGS_SET_FS_PWD
   6         macro updated to explicitly include linux/fs_struct.h which was
   7         dropped from linux/sched.h.
   8
   9         * include/linux/mm_compat.h: Linux 2.6.31 compat, use the macros
  10         min_wmark_pages, low_wmark_pages, and high_wmark_pages which were
  11         introduced.  For older kernels a compability macro is used.
  12
  13         * include/sys/kmem.h: Linux 2.6.31 compat, the __GFP_NOFAIL flag
  14         should no longer be used and it may disappear from the kernel at any
  15         time.  To handle this I have simply added *_nofail wrappers in the
  16         kmem implementation which perform the retry for non-atomic allocations.
  17
  18         * module/spl/spl-kmem.c: Linux 2.6.31 compat, kmem cache alignment
  19         fixes and cleanup.  Always perform allocations for the kmem cache
  20         using __get_free_pages() or __vmalloc() to ensure the returned
  21         memory is page aligned.  Also introduce helper functions which use
  22         P2ROUNDUP_TYPE instead of P2ROUNDUP force all types to be explicit.
  23
  24         * include/sys/mutex.h: Add mutex_enter_nested() as wrapper for
  25         mutex_lock_nested() to permit integration with the lock checker.
  26
  27         * include/sys/mutex.h: Always use the generic mutex_destroy().
  28
  29         * Makefile.am: Ensure *.order and *.markers build products are
  30         removed by distclean rule.
  31
  32 2009-11-02 Brian Behlendorf <behlendorf1@llnl.gov>
  33
  34         * : Tag spl-0.4.6
  35
  36         * config/spl-build.m4: Cleanup --enable-debug-* configure options.
  37         --enable-debug=<default no>  generic debug support.
  38         --enable-debug-kmem=<default yes> basic kmem and slab accounting.
  39         --enable-debug-kmem-tracking=<default no> detailed kmem tracking.
  40         --enable-debug-kstat removed option support always enabled.
  41         --enable-debug-callb removed option which never did anything.
  42
  43         * module/spl/spl-atomic.c: Reimplemented atomic functions by
  44         layering them on top of the Linux atomic functions.  This improves
  45         performance by removing the need for a global spinlock.
  46
  47         * module/spl/spl-debug.c: Rebase cmn_err on vcmn_err.  Handle the
  48         case where the message contains a leading ! which means only send
  49         it to syslog.  And suppress warnings for messages which do not end
  50         in a '\n'.
  51
  52         * module/splat/splat-ctl.c: Update to use kobject_set_name() for
  53         increased portability.
  54
  55         * module/spl/spl-generic.c: Set cwd to '/' for the task during
  56         module load for SPL dependent modules.  Under Solaris this is
  57         the expected behavior, on a Linux system your cwd remains set
  58         to whatever the tasks cwd was when loading a module.
  59
  60         * module/spl/spl-mutex.c: Reimplemented mutexs for improved
  61         performance and cleaner integration with the Linux kernels built
  62         in lock analyzer.  As of 2.6.29 based kernels adaptive mutexs
  63         are supported, for these newer kernels task_curr() does not need
  64         to be exported.  Finally, DEBUG_MUTEX support was dropped in
  65         favor of more detailed kernel profiling which is now available.
  66
  67         * module/spl/spl-rwlock.c: Reimplemented rwlocks for improved
  68         performance and cleaner integration with the Linux kernels built
  69         in lock analyzer.  Additionally, the rwlock regression tests were
  70         improved to help validate correctness.
  71
  72         * spl-modules.spec.in: Various spec file tweaks for the supported
  73         distros: RHEL5, RHEL6, SLES10, SLES11, Chaos4, Fedora 11.
  74
  75 2009-08-04 Brian Behlendorf <behlendorf1@llnl.gov>
  76
  77         * : Tag spl-0.4.5
  78
  79         * FC11 and SLES11 support: This includes all compatibility changes
  80         to support 2.6.29 based kernels and the required build system
  81         improvements.
  82         * module/spl/spl-module.c: Register a basic compat ioctl handler
  83         for 32-bit user vs 64-bit kernel compatibility.  This is the default
  84         build environment for all 64-bit SLES systems.
  85         * config/spl-build.m4: Check arch/default path when detecting kernel
  86         objects under SLES.  We still preferentially use arch/arch if
  87         available but if that fails it is acceptable to use default.
  88         * module/spl/spl-vnode.: Use HAVE_PATH_IN_NAMEIDATA compat macros
  89         for maximum kernel compatibility.
  90         * config/spl-build.m4: Remove LINUXINCLUDE from autoconf wrapper.
  91         This breaks the 2.6.28+ kernels build system, all kernel build systems
  92         at least post 2.6.16 will set this properly so we should not.
  93         * include/sys/vmsystm.h, module/spl/spl-kmem.c: Perferentially use the
  94         global_page_state() API when your kernel supports the required enums.
  95         * include/sys/debug.h: Add ASSERTV macro to simplify removing
  96         variables (the V in ASSERTV) which are only used in ASSERT().
  97         * include/sys/debug.h: Disable stack overflow checking by default
  98         when build with --enable-debug, modern kernels now provide this.
  99         * patches/fc11-spl-export-symbols.patch: Recommended missing symbols
 100         patch for FC11.  This is not required for correct functionality but
 101         it is recommended for individuals who are already patching the kernel.
 102
 103         * Additional Solaris API emulation:
 104         * include/sys/taskq.h: Add basic taskq support for the flag
 105         TASKQ_THREADS_CPU_PCT which is used to scale the number of threads
 106         based on the number of online CPUs.
 107         * include/sys/file.hi, module/spl/spl-generic.c: Add support for
 108         fake ioctls which originate from the kernel instead of user space.
 109         * include/sys/acl.h: Add ACE_ALL_PERMS ACL definition.
 110         * include/sys/cred.h, module/splat/splat-cred.c: Add basic credential
 111         support and splat regression tests.
 112
 113         * Bug fixes:
 114         * include/sys/isa_defs.h: Add more endianess paranoia.
 115         * module/spl/spl-time.c: Integer overflow after ~164 days.
 116         * include/sys/debug.h: NULL dereference by tcd_for_each().
 117         * module/splat/splat-kmem.c: Allow kmem or vmem based slabs for
 118         slab_lock and slab_overcommit tests.  This may still be an issue on
 119         32-bit systems due to the small virtual address space.
 120         * module/spl/spl-module.c: Positive Solaris ioctl return codes are
 121         need to be negated for use by libc to ensure errno is set correctly.
 122
 123 2009-07-02 Brian Behlendorf <behlendorf1@llnl.gov>
 124
 125         * : Tag spl-0.4.4
 126
 127         * : Generic distro friendly build system / packaging improvements
 128         for rpm based distros including CHAOS, RHEL, Fedora, and SLES.
 129
 130         spl-<version>.src.rpm
 131         - Fully rebuildable source rpm for utils.
 132         spl-modules-<version>.src.rpm
 133         - Fully rebuildable source rpm for kernel modules.
 134
 135         spl-<version>.<arch>.rpm
 136         - Binary rpm for utils.  The utils in this package are compatible
 137         with all spl-module rpms of the same version.
 138
 139         spl-modules-<verion>-<kernel>.arch.rpm
 140         - Binary rpm containing the kernel modules for a specific kernel build.
 141           The package name contains the kernel version and you should have one
 142           of these packages installed to match every kernel on your system.
 143         spl-modules-devel-<verion>-<kernel>.arch.rpm
 144         - Binary rpm containing development header and module symbols needed
 145           for building additional kernel modules which are dependent on the
 146           spl module.
 147
 148         * : Added SLES10 support.  This includes all compatibility
 149         changes to support 2.6.16 based kernels and the required
 150         build system improvements.
 151
 152         * : Build System changes for SLES10:
 153         - Exclude -obj when detecting installed kernel source.
 154         - Detect -obj directory for out of tree kernel builds.
 155         - Allow kernel build system to set CC to ensure -m64 is set properly.
 156           This is an issue on 64-bit SLES systems which by default always
 157           build 32-bit binaries (unlike RHEL/Fedora which default to 64-bit)
 158
 159         * : Configure Checks added for SLES10:
 160         - div64_64() renamed to div64_u64() as of 2.6.26.
 161         - global_page_state() fuction was introduced in 2.6.18 kernels.
 162           The earlier 2.6.16 based SLES10 must not try and use it,
 163           thankfully get_zone_counts() is still available.
 164         - monotonic_clock() is unavailable __gethrtime() must perform the
 165           HZ division as an 'unsigned long long' because the SPL only
 166           implements __udivdi3(), and not __divdi3() for 'long long'
 167           division on 32-bit arches.
 168         - mutex_lock_nested() was introduced as part of the mutex
 169           validator in 2.6.18, when it is unavailable it is safe to
 170           fallback to using a plain mutex_lock().
 171         - SLES specific API change to vfs_unlink() and vfs_rename() which
 172           added a 'struct vfsmount *' argument.  This was for something
 173           called the linux-security-module, but it appears that it was
 174           never adopted upstream.
 175         - spl_device_create() correctly mapped to class_device_create()
 176           for 2.6.13 to 2.6.17 based kernels, this is the preferred API.
 177         - Prior to 2.6.17 there were no *_pgdat helper functions in
 178           mm/mmzone.c.  Instead for_each_zone() operated directly on
 179           pgdat_list which may or may not have been exported depending on
 180           how your kernel was compiled.  A configure check was added to
 181           determine if you have the helpers or not, and if the needed
 182           symbols are exported.  If they are not exported then they are
 183           dynamically aquired at runtime by kallsyms_lookup_name().
 184
 185         * : Packaging changes for SLES10
 186         - Properly honor --prefix in build system and rpm spec file.
 187         - Add '--define require_kdir' to spec file to support building
 188           rpms against kernel sources installed in non-default locations.
 189         - Add '--define require_kobj' to spec file to support building
 190           rpms against kernel object installed in non-default locations.
 191         - Stop suppressing errors in autogen.sh script.
 192         - Improved logic to detect missing kernel objects when they are
 193           not located with the source.  This is the common case for SLES
 194           as well as in-tree chaos kernel builds and is done to simply
 195           support for multiple arches.
 196         - Moved spl-devel build products to /usr/src/spl-<version>, a
 197           spl symlink is created to reference the last installed version.
 198         - Allow checking for exported symbols in both Module.symvers
 199           and Module.symvers.  My stock SLES kernel ships an objects
 200           directory with Module.symvers, yet produces a Module.symvers
 201           in the local build directory.
 202
 203         * : Added powerpc64 support.
 204         - Enable builds for powerpc64 ISA type.
 205         - Add DIV_ROUND_UP and roundup macros if unavailable.
 206         - Cast 64-bit values for %lld format string to (long long) to
 207           quiet compile warning.
 208
 209         * module/splat/splat-ctl.c: Proper ioctl() 32/64-bit binary
 210           compatibility.  We need to ensure the ioctl data itself is always
 211           packed the same for 32/64-bit binaries.  Additionally, the correct
 212           thing to do is encode this size in bytes as part of the command
 213           using _IOC_SIZE().
 214
 215         * modules/spl/spl-kmem.c: Fixed a long standing bug in the debug
 216           tracing.  The tcd_for_each() macro expected a NULL to terminate
 217           the trace_data[i] array but this was only ever true due to luck.
 218           All trace_data[] iterators are now properly capped by TCD_TYPE_MAX.
 219
 220         * modules/spl/spl-kmem.c: To simplify debugging all symbols aquired
 221           dynamically using spl_kallsyms_lookup_name() are initially poisoned
 222           with SYMBOL_POISON.
 223
 224 2009-03-20 Brian Behlendorf <behlendorf1@llnl.gov>
 225
 226         * : Tag spl-0.4.3
 227
 228         * configure.ac, *Makefile.am: Build system update.  This includes
 229         resolving various build issues and adding support for the remaining
 230         common build targets.  Available targets now include:
 231
 232         - make all        # Build everything
 233         - make install    # Install everything
 234         - make clean      # Clean up build products
 235         - make distclean  # Clean up everything
 236         - make dist       # Create package tarball
 237         - make srpm       # Create package source RPM
 238         - make rpm        # Create package binary RPMs
 239         - make tags       # Create ctags and etags for everything
 240
 241         Extra care was taken to ensure that the source RPMs are fully
 242         rebuildable against Fedora/RHEL/Chaos kernels.  To build binary
 243         RPMs from the source RPM for your system simply run:
 244
 245         rpmbuild --rebuild spl-x.y.z-1.src.rpm
 246
 247         This will produce two binary RPMs with correct 'requires'
 248         dependencies for your kernel.  One will contain all zpl modules
 249         and support utilities, the other is a devel package for compiling
 250         additional kernel modules which are dependent on the spl.
 251
 252         spl-x.y.z-1_<kernel version>.x86_64.rpm
 253         spl-devel-x.y.2-1_<kernel version>.x86_64.rpm
 254
 255         * : FC10 (linux-2.6.27.19) and i686 compatibility update.  The
 256         list of support platforms has been extended to include FC10
 257         systems and x86 architectures.  It should be noted that kernels
 258         older the 2.6.27.19 should work but have not have not been tested.
 259
 260         * configure.ac: Fix build issue preventing spl_config.h from being
 261         cleanly included by dependent packages.
 262
 263         * module/spl/spl-taskq.c: Fix taskq_wait() not waiting bug.
 264
 265         * module/spl/spl-xdr.c: Add XDR implementation provided by Ricardo
 266         Correia from Sun.
 267
 268         * module/spl/spl-kmem.c: Linux VM integration cleanup.
 269
 270         * module/spl/spl-kmem.c: Slab cache improvements and fixes.
 271
 272         * modules/splat/*: Include additional SPLAT regression tests.
 273
 274         * : Various bug fixes are more clearly detailed in the git
 275         commit logs.  For a detailed summary of changes post version
 276         0.4.2 check the git commit logs.
 277
 278         git log -35
 279
 280 2009-02-05 Brian Behlendorf <behlendorf1@llnl.gov>
 281
 282         * : Tag spl-0.4.2
 283
 284         * module/spl/spl-kmem.c include/sys/kmem.h: Slab cache improvements:
 285           - Implement kmem cache alignment.
 286           - Implement slab ageing.
 287           - Optimized slab packing algorithm.
 288           - Fixed deadlock due to calling call kv_free() under the skc_lock.
 289           - Added additional SPLAT test cases
 290           - Performance optimizations
 291
 292         * module/spl/spl-kmem.c include/sys/kmem.h: Linux VM integration.
 293         The Solaris global VM symbols minfree, desfree, lotsfree, needfree,
 294         swapfs_minfree, swapfs_reserve, availrmem, freemem, and physmem are
 295         now available and loosely integrating with the Linux VM.  Some
 296         tuning will undoubtably be needed and these tunables are available
 297         in /proc/sys/kernel/spl/vm/* for this very reason.
 298
 299         * config/spl-build.m4: New configure checks needed when building
 300         against 2.6.27+ kernels.  More work is needed here.
 301
 302         * : Minor cleanup see the 'git log' for full details.
 303
 304 2009-01-21 Brian Behlendorf <behlendorf1@llnl.gov>
 305
 306         * : Tag spl-0.4.1
 307
 308         * : Implement ksid_*, ddi_strto*, and system taskq functionality.
 309         In addition, several other small Solaris compatibility changes
 310         were made, see the 'git log' for full details.
 311
 312 2008-11-26 Brian Behlendorf <behlendorf1@llnl.gov>
 313
 314         * : Tag spl-0.4.0 (Development now done with Git)
 315
 316         * : Imported SPL SVN repo in to Git Repo for core development.
 317
 318 2008-11-26 Brian Behlendorf <behlendorf1@llnl.gov>
 319
 320         * : Tag spl-0.3.5
 321
 322         * : Include META file support.
 323
 324 2008-11-05 Jim Garlick <garlick@llnl.gov>
 325
 326         * : Add autogen.sh products.
 327
 328         * configure.ac : Use AC_CONFIG_AUX_DIR to put autograph products
 329         in ./auotconf.
 330
 331         * autogen.sh : Use --copy to avoid symlinks, remove error
 332         redirection, run aclocal before libtoolize.
 333
 334 2008-11-13 Brian Behlendorf <behlendorf1@llnl.gov>
 335
 336         * include/sys/sunddi.h, modules/spl/spl-module.c : Removed default
 337         udev support from sunddi implementation because it uses GPL-only
 338         symbols.  This support is optionally available for SPL consumers
 339         if they define HAVE_GPL_ONLY_SYMBOLS and license their module as
 340         GPL using the MODULE_LICENSE("GPL") macro.
 341
 342 2008-11-05 Brian Behlendorf <behlendorf1@llnl.gov>
 343
 344         * : Tag spl-0.3.4
 345
 346         * : Coverity clean.
 347
 348         * : Patches from Ricardo M. Correia <Ricardo.M.Correia@sun.com>
 349         applied with minor revisions:
 350
 351                 spl-00-rm-gpl-symbol-notifier_chain.patch
 352                 spl-01-rm-gpl-symbol-set_cpus_allowed.patch
 353                 spl-02-rm-gpl-symbols-device.patch
 354                 spl-03-rm-gpl-symbol-ktime_get_ts.patch
 355                 spl-04-fix-taskq-spinlock-lockup.patch
 356                 spl-05-div64.patch
 357                 spl-06-atomic64.patch
 358                 spl-07-kmem-cleanup.patch
 359                 spl-08-km-sleep-nofail.patch
 360                 spl-09-fix-kmem-track-oops.patch
 361                 spl-10-fix-assert-verify-ndebug.patch
 362
 363 2008-06-30 Brian Behlendorf <behlendorf1@llnl.gov>
 364
 365         * : Tag spl-0.3.3
 366
 367         * : modules/sys/kmem-slab.c : Refined SPL slab to include
 368         per-cpu caches, removed internal hash, other general
 369         performance improvements.  Much work remain but it's pretty
 370         good for an initial implementation.
 371
 372 2008-06-13 Brian Behlendorf <behlendorf1@llnl.gov>
 373
 374         * : modules/sys/kmem-slab.c : Re-implemented the slab to no
 375         longer be based on the linux slab but to be it's own complete
 376         implementation.  The new slab behaves much more like the
 377         Solaris slab than the Linux slab.
 378
 379 2008-06-04 Brian Behlendorf <behlendorf1@llnl.gov>
 380
 381         * : Tag spl-0.3.2
 382
 383         * : Extensive improvements to the build system to detect kernel
 384         API changes so we can flexibly build with a wider range of kernel
 385         versions.  The code has now been testing with the 2.6.18-32chaos
 386         and 2.6.25.3-18.fc9 kernels, however we should also be compatible
 387         with other kernels in the range of 2.6.18-2.6.25.
 388
 389 2008-05-25 Brian Behlendorf <behlendorf1@llnl.gov>
 390
 391         * configure.ac, autoconf/* : Initial pass at resolving
 392         API changes introduced by kernels newer than 2.6.18.
 393
 394 2008-05-21 Brian Behlendorf <behlendorf1@llnl.gov>
 395
 396         * : Tag spl-0.3.1
 397
 398         * : License headers including URCL added for release.
 399
 400 2008-05-21 Brian Behlendorf <behlendorf1@llnl.gov>
 401
 402         * : Tag spl-0.3.0
 403
 404         * configure.ac: Improved autotools support.
 405
 406 2008-04-26 Brian Behlendorf <behlendorf1@llnl.gov>
 407
 408         * include/sys/mutex.h : Implemented a close approximation
 409         of adaptive mutexes.  These changes however required me to
 410         export a new symbol from the kernel proper 'task_curr()'
 411         which means we are now dependant on a patched kernel.
 412
 413 2008-04-24 Brian Behlendorf <behlendorf1@llnl.gov>
 414
 415         * : Tag spl-0.2.1
 416
 417         * modules/spl/spl-proc.c : Add /proc/sys/spl/version.
 418
 419 2008-04-24 Herb Wartens <wartens2@llnl.gov>
 420
 421         * include/sys/kmem.h : Make sure that when calling __vmem_alloc
 422         that we do not have __GFP_ZERO set.  Once the memory is allocated
 423         then zero out the memory if __GFP_ZERO is passed to
 424         __vmem_alloc.
 425
 426 2008-04-16 Herb Wartens <wartens2@llnl.gov>
 427
 428         * modules/spl/spl-kmem.c : Make sure to disable interrupts
 429         when necessary to avoid deadlocks.  We were seeing the deadlock
 430         when calling kmem_cache_generic_constructor() and then an interrupt
 431         forced us to end up calling kmem_cache_generic_destructor()
 432         which caused our deadlock.
 433
 434 2008-02-26 Brian Behlendorf <behlendorf1@llnl.gov>
 435
 436         : Initial commit of the solaris porting layer (spl).  Included
 437         in addition to the source is an initial autoconf / configure
 438         style build system.