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Update ChangeLog with a high level summary of the changes from
0.4.3 to 0.4.4 prior to tagging. Full details can be found in the git commit history.
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ChangeLog
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ChangeLog
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2009-06-22 Brian Behlendorf <behlendorf1@llnl.gov>
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* : Tag spl-0.4.4
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* : Added SLES10 support. This includes all compatibility
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changes to support 2.6.16 based kernels and the required
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build system improvements.
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* : Build System changes for SLES10:
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- Exclude -obj when detecting installed kernel source.
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- Detect -obj directory for out of tree kernel builds.
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- Allow kernel build system to set CC to ensure -m64 is set properly.
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This is an issue on 64-bit SLES systems which by default always
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build 32-bit binaries (unlike RHEL/Fedora which default to 64-bit)
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* : Configure Checks added for SLES10:
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- div64_64() renamed to div64_u64() as of 2.6.26.
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- global_page_state() fuction was introduced in 2.6.18 kernels.
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The earlier 2.6.16 based SLES10 must not try and use it,
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thankfully get_zone_counts() is still available.
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- monotonic_clock() is unavailable __gethrtime() must perform the
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HZ division as an 'unsigned long long' because the SPL only
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implements __udivdi3(), and not __divdi3() for 'long long'
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division on 32-bit arches.
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- mutex_lock_nested() was introduced as part of the mutex
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validator in 2.6.18, when it is unavailable it is safe to
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fallback to using a plain mutex_lock().
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- SLES specific API change to vfs_unlink() and vfs_rename() which
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added a 'struct vfsmount *' argument. This was for something
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called the linux-security-module, but it appears that it was
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never adopted upstream.
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- spl_device_create() correctly mapped to class_device_create()
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for 2.6.13 to 2.6.17 based kernels, this is the preferred API.
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- Prior to 2.6.17 there were no *_pgdat helper functions in
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mm/mmzone.c. Instead for_each_zone() operated directly on
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pgdat_list which may or may not have been exported depending on
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how your kernel was compiled. A configure check was added to
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determine if you have the helpers or not, and if the needed
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symbols are exported. If they are not exported then they are
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dynamically aquired at runtime by kallsyms_lookup_name().
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* : Packaging changes for SLES10
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- Properly honor --prefix in build system and rpm spec file.
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- Add '--define require_kdir' to spec file to support building
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rpms against kernel sources installed in non-default locations.
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- Add '--define require_kobj' to spec file to support building
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rpms against kernel object installed in non-default locations.
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- Stop suppressing errors in autogen.sh script.
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- Improved logic to detect missing kernel objects when they are
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not located with the source. This is the common case for SLES
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as well as in-tree chaos kernel builds and is done to simply
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support for multiple arches.
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- Moved spl-devel build products to /usr/src/spl-<version>, a
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spl symlink is created to reference the last installed version.
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- Allow checking for exported symbols in both Module.symvers
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and Module.symvers. My stock SLES kernel ships an objects
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directory with Module.symvers, yet produces a Module.symvers
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in the local build directory.
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* : Added powerpc64 support.
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- Enable builds for powerpc64 ISA type.
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- Add DIV_ROUND_UP and roundup macros if unavailable.
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- Cast 64-bit values for %lld format string to (long long) to
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quiet compile warning.
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* module/splat/splat-ctl.c: Proper ioctl() 32/64-bit binary
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compatibility. We need to ensure the ioctl data itself is always
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packed the same for 32/64-bit binaries. Additionally, the correct
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thing to do is encode this size in bytes as part of the command
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using _IOC_SIZE().
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* modules/spl/spl-kmem.c: Fixed a long standing bug in the debug
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tracing. The tcd_for_each() macro expected a NULL to terminate
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the trace_data[i] array but this was only ever true due to luck.
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All trace_data[] iterators are now properly capped by TCD_TYPE_MAX.
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* modules/spl/spl-kmem.c: To simplify debugging all symbols aquired
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dynamically using spl_kallsyms_lookup_name() are initially poisoned
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with SYMBOL_POISON.
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2009-03-20 Brian Behlendorf <behlendorf1@llnl.gov>
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* : Tag spl-0.4.3
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