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NFSv4/pNFS: Always allow update of a zero valued layout barrier
authorTrond Myklebust <trond.myklebust@hammerspace.com>
Fri, 23 Jul 2021 12:57:20 +0000 (08:57 -0400)
committerAnna Schumaker <Anna.Schumaker@Netapp.com>
Mon, 9 Aug 2021 20:57:04 +0000 (16:57 -0400)
commit45baadaad7bf9183651fb74f4ed1200da48505a5
tree71c2ff01ba8acafe92f979e672faae5d29832895tree
parent7c0bbf2d3dcd13c906244e0c2e4a0ba3a33dab6acommit | diff
NFSv4/pNFS: Always allow update of a zero valued layout barrier

A zero value for the layout barrier indicates that it has been cleared
(since seqid '0' is an illegal value), so we should always allow it to
be updated.

Fixes: d29b468da4f9 ("pNFS/NFSv4: Improve rejection of out-of-order layouts")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
fs/nfs/pnfs.c diff | blob | blame | history
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