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Add command line options to enable those NFS versions that are
currently disabled by default. We choose to use the options '-V'
and '--nfs-version' for compatibility with rpc.mountd.
Acked-by: J. Bruce Fields <bfields@fieldses.org>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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In the case where -N 4.1 is left off the commandline, the current code
explicitly turns it on or off anyway, depending on configure options.
Instead, just leave 4.1 support alone. This allows a user to add an
"echo +4.1 >/proc/fs/nfsd/versions" to their init scripts, if they want.
Otherwise they will get the kernel's default (currently to leave 4.1
off, as long as 4.1 support is experimental).
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Due to the fact the current kernel code do not completely
conform to the NFS 4.1 RFC, this patch disable the 4.1 support
on the server.
To control this 41 functionality, the NFS41_SUPPORTED
configuration variable now exist that will allow us to
re enable the functionality without any code changes.
Signed-off-by: Steve Dickson <steved@redhat.com>
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They are a little hard to follow currently. Clean them up and add new
macros that can set these bits in addition to the ones that unset them.
Also add a new macro that reports when any valid protocol bit is set.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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minorvers4 can be used to either enable or disable nfsv4.x.
If minorvers4 is a positive integer n, in the allowed range (only
minorversion 1 is supported for now), the string "+4.n" is appended
to the versions string written onto /proc/fs/nfsd/versions.
Correspondingly, if minorver4 is a negative integer -n, the string
"-4.n" is written.
With the default value, minorvers4==0, the minor version
setting is not changed.
Note that unlike the protocol versions 2, 3, or 4. The minor version
setting controls the *maximum* minor version nfsd supports. Particular
minor version cannot be controlled on their own. With only minor
version 1 supported at the moment the difference doesn't matter,
but for future minor versions greater than 1, enabling minor
version X will enable support for all minor versions 1 through X.
Disabling minor version X will disable support for minor
versions X and up, enabling 1 through X-1.
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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This was only needed for kernels 2.2.14 through 2.2.17.
These have long since been superceded, so remove some dead weight.
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-T - will suppressing listening for TCP connection.
-U - will suppress UDP
-H host - will only listen on that local address
-p port - will listen on that port.
This requires kernel patches which will hopefully be in 2.6.19 and possibly some
earlier test and vendor kernels.
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e.g. -N 2
means that NFSv2 won't be supported, just v3 and v4 (if the kernel
supports them).
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introduce getfh_size to use new (2.3.99) syscall for getting file handles
with length
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