| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.9 150/391] nfsd4: remove check_conflicting_opens warning | Date | Tue, 3 Nov 2020 21:33:21 +0100 |
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From: J. Bruce Fields <bfields@redhat.com>
[ Upstream commit 50747dd5e47bde3b7d7f839c84d0d3b554090497 ]
There are actually rare races where this is possible (e.g. if a new open intervenes between the read of i_writecount and the fi_fds).
Signed-off-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- fs/nfsd/nfs4state.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 0525acfe31314..1f646a27481fb 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -4954,7 +4954,6 @@ static int nfsd4_check_conflicting_opens(struct nfs4_client *clp, writes--; if (fp->fi_fds[O_RDWR]) writes--; - WARN_ON_ONCE(writes < 0); if (writes > 0) return -EAGAIN; spin_lock(&fp->fi_lock); -- 2.27.0
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