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Differential D53536

nfs_clvnops: standardize on EOPNOTSUPP for posix_fallocate(2)
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Authored by kevans on Nov 2 2025, 3:20 PM.
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rmacklem
emaste
kib
imp
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rGb87436d8be8e: nfs_clvnops: standardize on EOPNOTSUPP for posix_fallocate(2)
Summary

POSIX Issue 7 had allowed EINVAL for this case, but issue 8 moves it
to ENOTSUP instead. ZFS uses the latter and we have some software in
ports already that's wanting to use that to detect the filesystem not
supporting it, so let's standardize on it.

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rG FreeBSD src repository
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sys/
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nfsclient/
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sys/fs/nfsclient/nfs_clvnops.c

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