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Fix cross-endian interoperability of zstd

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It turns out that layouts of union bitfields are a pain, and the
current code results in an inconsistent layout between BE and LE
systems, leading to zstd-active datasets on one erroring out on
the other.

Switch everyone over to the LE layout, and add compatibility code
to read both.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Signed-off-by: Rich Ercolani <rincebrain@gmail.com>
Closes #12008
Closes #12022
This commit is contained in:
Rich Ercolani
2021-08-30 17:13:46 -04:00
committed by Tony Hutter
parent 6bb6410570
commit 72a989cf60
6 changed files with 165 additions and 19 deletions
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module/zstd/include/sparc_compat.h
+4
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@@ -0,0 +1,4 @@
#if defined(__sparc)
uint64_t __bswapdi2(uint64_t in);
uint32_t __bswapsi2(uint32_t in);
#endif