Jeff Layton 898f944652 lockd: don't allow locking on reexported NFSv2/3 ...

Since commit 9254c8ae9b ("nfsd: disallow file locking and delegations
for NFSv4 reexport"), file locking when reexporting an NFS mount via
NFSv4 is expressly prohibited by nfsd. Do the same in lockd:

Add a new  nlmsvc_file_cannot_lock() helper that will test whether file
locking is allowed for a given file, and return nlm_lck_denied_nolocks
if it isn't.

Signed-off-by: Jeff Layton <[email protected]>
Tested-by: Olga Kornievskaia <[email protected]>
Signed-off-by: Chuck Lever <[email protected]>

2025-11-20 16:29:35 -05:00

..

bind.h

…

debug.h

…

lockd.h

lockd: don't allow locking on reexported NFSv2/3

2025-11-20 16:29:35 -05:00

nlm.h

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share.h

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xdr4.h

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xdr.h

…