NFSD: Make nfsd4_rename() wait before returning NFS4ERR_DELAY

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nfsd_rename() can kick off a CB_RECALL (via
vfs_rename() -> leases_conflict()) if a delegation is present.
Before returning NFS4ERR_DELAY, give the client holding that
delegation a chance to return it and then retry the nfsd_rename()
again, once.

This version of the patch handles renaming an existing file,
but does not deal with renaming onto an existing file. That
case will still always trigger an NFS4ERR_DELAY.

Link: https://bugzilla.linux-nfs.org/show_bug.cgi?id=354
Tested-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>

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This commit is contained in:

Chuck Lever 2022-09-08 18:14:19 -04:00

parent 34b91dda71

commit 68c522afd0

1 changed files with 9 additions and 1 deletions

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fs/nfsd/vfs.c

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