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6e4e3c3ab6
This is a potentially arguable change, because it removes some compatibility cruft that certain systems or people may have come to rely on (either a very long time ago, or unwisely in recent times). On the other hand, it's been literally over a decade since OpenZFS switched to the strategy of using opaque numbered /dev/zd* device nodes, with the canonical zvol access path being a directory tree of symlinks created by udev rules inside /dev/zvol/*. (See #102.) Even at the time, the /dev/* scheme was labeled as being for "compatibility". This commit removes the second tree of symlinks located directly at /dev/*, under the assumption that anybody with any sense has been using the intended /dev/zvol/* path for a very very long time now. (The more I think about this, the more I anticipate that some large fraction of people will have been blissfully unaware that the intention has been for them to use the /dev/zvol/* tree all along, and they will have come to rely upon the /dev/* tree simply because it's been there this whole time despite being a compat thing.) Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Pavel Zakharov <pavel.zakharov@delphix.com> Reviewed-by: Neal Gompa <ngompa@datto.com> Signed-off-by: Justin Gottula <justin@jgottula.com> Closes #12303
12 lines
461 B
Plaintext
12 lines
461 B
Plaintext
# Persistent links for zvol
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#
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# persistent disk links: /dev/zvol/dataset_name
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#
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# NOTE: We used to also create an additional tree of zvol symlinks located at
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# /dev/dataset_name (i.e. without the 'zvol' path component) for
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# compatibility reasons. These are no longer created anymore, and should
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# not be relied upon.
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#
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KERNEL=="zd*", SUBSYSTEM=="block", ACTION=="add|change", PROGRAM=="@udevdir@/zvol_id $devnode", SYMLINK+="zvol/%c"
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