NFSv4: pnfs_roc() must use cred_fscmp() to compare creds
commit5.4-rM2-2.2.x-imx-squashed3871224787
upstream. When comparing two 'struct cred' for equality w.r.t. behaviour under filesystem access, we need to use cred_fscmp(). Fixes:a52458b48a
("NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'.") Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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86065de0eb
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5d0a6d77b6
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@ -1425,7 +1425,7 @@ retry:
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/* lo ref dropped in pnfs_roc_release() */
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layoutreturn = pnfs_prepare_layoutreturn(lo, &stateid, &iomode);
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/* If the creds don't match, we can't compound the layoutreturn */
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if (!layoutreturn || cred != lo->plh_lc_cred)
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if (!layoutreturn || cred_fscmp(cred, lo->plh_lc_cred) != 0)
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goto out_noroc;
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roc = layoutreturn;
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