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authorBrian Behlendorf <[email protected]>2012-01-27 13:43:23 -0800
committerBrian Behlendorf <[email protected]>2012-02-02 11:22:08 -0800
commit0c5dde492ff4fadcc9c43477c81b3d3824ac41db (patch)
tree052ee6a0f94ec5083249b81b6a3fd25605e9fe34 /include/sys/fs
parente29be02e46ba2470795c9ab12e6da12d58ff2e5a (diff)
Allow multiple values per directory entry
When using zfs to back a Lustre filesystem it's advantageous to to store a fid with the object id in the directory zap. The only technical impediment to doing this is that the zpl code expects a single value in the zap per directory entry. This change relaxes that requirement such that multiple entries are allowed provided the first one is the object id. The zpl code will just ignore additional entries. This allows the ZoL count to mount datasets which are being used as Lustre server backends. Once the upstream feature flags support is merged in this change should be updated to a read-only feature. Until this occurs other zfs implementations will not be able to read the zfs filesystems created by Lustre. Signed-off-by: Brian Behlendorf <[email protected]>
Diffstat (limited to 'include/sys/fs')
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