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nfsd: set missing after_change as before_change + 1 

In the event that we can't fetch post_op_attr attributes, we still need
to set a value for the after_change. The operation has already happened,
so we're not able to return an error at that point, but we do want to
ensure that the client knows that its cache should be invalidated.

If we weren't able to fetch post-op attrs, then just set the
after_change to before_change + 1. The atomic flag should already be
clear in this case.

Suggested-by: Neil Brown <neilb@suse.de>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Jeff Layton 2023-07-24 10:53:39 -04:00 committed by Chuck Lever
parent 976626073a
commit f2b7019d2e
1 changed files with 1 additions and 1 deletions
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2
fs/nfsd/nfs4proc.c
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@ -411,7 +411,7 @@ set_change_info(struct nfsd4_change_info *cinfo, struct svc_fh *fhp)
if (WARN_ON_ONCE(!fhp->fh_pre_saved))
cinfo->before_change = 0;
if (!fhp->fh_post_saved)
cinfo->after_change = 0;
cinfo->after_change = cinfo->before_change + 1;
}
static __be32