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Chuck Lever 3f5d7f3865 NFSD: Remove NFSERR_EAGAIN 
commit c6c209ceb8 upstream.

I haven't found an NFSERR_EAGAIN in RFCs 1094, 1813, 7530, or 8881.
None of these RFCs have an NFS status code that match the numeric
value "11".

Based on the meaning of the EAGAIN errno, I presume the use of this
status in NFSD means NFS4ERR_DELAY. So replace the one usage of
nfserr_eagain, and remove it from NFSD's NFS status conversion
tables.

As far as I can tell, NFSERR_EAGAIN has existed since the pre-git
era, but was not actually used by any code until commit f4e44b3933
("NFSD: delay unmount source's export after inter-server copy
completed."), at which time it become possible for NFSD to return
a status code of 11 (which is not valid NFS protocol).

Fixes: f4e44b3933 ("NFSD: delay unmount source's export after inter-server copy completed.")
Cc: stable@vger.kernel.org
Reviewed-by: NeilBrown <neil@brown.name>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2026-01-17 16:31:15 +01:00
..
fs.h trace: Relocate event helper files 2022-12-10 11:01:12 -05:00
nfs.h NFSD: Remove NFSERR_EAGAIN 2026-01-17 16:31:15 +01:00
rdma.h trace: Relocate event helper files 2022-12-10 11:01:12 -05:00
sunrpc.h trace: Relocate event helper files 2022-12-10 11:01:12 -05:00