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4254acb057
If a spill block's dbuf hasn't yet been written when a spill block is freed, the unwritten version will still be written. This patch handles the case in which a spill block's dbuf is freed and undirties it to prevent it from being written. The most common case in which this could happen is when xattr=sa is being used and a long xattr is immediately replaced by a short xattr as in: setfattr -n user.test -v very_very_very..._long_value <file> setfattr -n user.test -v short_value <file> The first value must be sufficiently long that a spill block is generated and the second value must be short enough to not require a spill block. In practice, this would typically happen due to internal xattr operations as a result of setting acltype=posixacl. Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #2663 Closes #2700 Closes #2701 Closes #2717 Closes #2863 Closes #2884 |
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