fusefs: add comments explaining why 7.11 features aren't implemented
Protocol 7.11 adds two new features, but neither of them were defined correctly. FUSE_IOCTL messages don't work for 32-bit daemons on a 64-bit host (fixed in protocol 7.16). FUSE_POLL is basically unusable until 7.21. Before 7.21, the client can't choose which events to register for; the client registers for "something" and the server replies to say which events the client is registered for. Also, before 7.21 there was no way for a client to deregister a file handle. Sponsored by: The FreeBSD Foundation
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/projects/fuse2/; revision=348348
@ -182,6 +182,11 @@ struct vop_vector fuse_vnops = {
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.vop_getattr = fuse_vnop_getattr,
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.vop_getextattr = fuse_vnop_getextattr,
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.vop_inactive = fuse_vnop_inactive,
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/*
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* TODO: implement vop_ioctl after upgrading to protocol 7.16.
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* FUSE_IOCTL was added in 7.11, but 32-bit compat is broken until
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* 7.16.
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*/
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.vop_link = fuse_vnop_link,
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.vop_listextattr = fuse_vnop_listextattr,
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.vop_lookup = fuse_vnop_lookup,
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@ -189,6 +194,12 @@ struct vop_vector fuse_vnops = {
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.vop_mknod = fuse_vnop_mknod,
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.vop_open = fuse_vnop_open,
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.vop_pathconf = fuse_vnop_pathconf,
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/*
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* TODO: implement vop_poll after upgrading to protocol 7.21.
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* FUSE_POLL was added in protocol 7.11, but it's kind of broken until
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* 7.21, which adds the ability for the client to choose which poll
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* events it wants, and for a client to deregister a file handle
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*/
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.vop_read = fuse_vnop_read,
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.vop_readdir = fuse_vnop_readdir,
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.vop_readlink = fuse_vnop_readlink,
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