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nfsd4: remove check_conflicting_opens warning

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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>
This commit is contained in:
J. Bruce Fields 2020-09-25 10:09:58 -04:00
parent ae3c57b5ca
commit 50747dd5e4
1 changed files with 0 additions and 1 deletions
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fs/nfsd/nfs4state.c
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@ -4955,7 +4955,6 @@ static int nfsd4_check_conflicting_opens(struct nfs4_client *clp,
writes--; writes--;
if (fp->fi_fds[O_RDWR]) if (fp->fi_fds[O_RDWR])
writes--; writes--;
WARN_ON_ONCE(writes < 0);
if (writes > 0) if (writes > 0)
return -EAGAIN; return -EAGAIN;
spin_lock(&fp->fi_lock); spin_lock(&fp->fi_lock);