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| author | Matthew Ahrens <[email protected]> | 2017-03-23 09:07:27 -0700 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2017-06-07 14:16:01 -0400 |
| commit | 82644107c4e7f3e899ebde18f65cbac7c604583c (patch) | |
| tree | 8111a1ac9ea396e0a9f092fc5a97f50b8078d4bb /module/zfs/policy.c | |
| parent | 4070bfd85282eda582cd0050367478da5e29ca2e (diff) | |
OpenZFS 8155 - simplify dmu_write_policy handling of pre-compressed buffers
Authored by: Matthew Ahrens <[email protected]>
Reviewed by: Dan Kimmel <[email protected]>
Reviewed by: George Wilson <[email protected]>
Approved by: Robert Mustacchi <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Ported-by: Giuseppe Di Natale <[email protected]>
When writing pre-compressed buffers, arc_write() requires that
the compression algorithm used to compress the buffer matches
the compression algorithm requested by the zio_prop_t, which is
set by dmu_write_policy(). This makes dmu_write_policy() and its
callers a bit more complicated.
We simplify this by making arc_write() trust the caller to supply
the type of pre-compressed buffer that it wants to write,
and override the compression setting in the zio_prop_t.
OpenZFS-issue: https://www.illumos.org/issues/8155
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/b55ff58
Closes #6200
Diffstat (limited to 'module/zfs/policy.c')
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