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0ea44e576b
Implementation of DDT pruning introduced verification of DVAs in a block pointer during ddt_lookup() to not by mistake free previous pruned incarnation of the entry. But when writing a new block in zio_ddt_write() we might have the DVAs only from override pointer, which may never have "D" flag to be confused with pruned DDT entry, and we'll abandon those DVAs if we find a matching entry in DDT. This fixes deduplication for blocks written via dmu_sync() for purposes of indirect ZIL write records, that I have tested. And I suspect it might actually allow deduplication for Direct I/O, even though in an odd way -- first write block directly and then delete it later during TXG commit if found duplicate, which part I haven't tested. Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Alexander Motin <mav@FreeBSD.org> Sponsored by: iXsystems, Inc. Closes #17120 |
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| os | ||
| sys | ||
| .gitignore | ||
| cityhash.h | ||
| libnvpair.h | ||
| libuutil_common.h | ||
| libuutil_impl.h | ||
| libuutil.h | ||
| libzdb.h | ||
| libzfs_core.h | ||
| libzfs.h | ||
| libzfsbootenv.h | ||
| libzutil.h | ||
| Makefile.am | ||
| thread_pool.h | ||
| zfeature_common.h | ||
| zfs_comutil.h | ||
| zfs_deleg.h | ||
| zfs_fletcher.h | ||
| zfs_namecheck.h | ||
| zfs_prop.h | ||
| zfs_valstr.h | ||