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Add support for user/group dnode accounting & quota
This patch tracks dnode usage for each user/group in the DMU_USER/GROUPUSED_OBJECT ZAPs. ZAP entries dedicated to dnode accounting have the key prefixed with "dn-" followed by the UID/GID in string format (as done for the block accounting). A new SPA feature has been added for dnode accounting as well as a new ZPL version. The SPA feature must be enabled in the pool before upgrading the zfs filesystem. During the zfs version upgrade, a "quotacheck" will be executed by marking all dnode as dirty. ZoL-bug-id: #3500 Signed-off-by: Johann Lombardi <[email protected]> Signed-off-by: Jinshan Xiong <[email protected]> Change-Id: I899ff446cbf2aa7e355e7d98a83d614f1cd4624b
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Jinshan Xiong
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Feb 13, 2016
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