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);