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NFSv4: Fix up decode_attr_mdsthreshold 

Fix an incorrect use of 'likely()'. The FATTR4_WORD2_MDSTHRESHOLD
bit is only expected in NFSv4.1 OPEN calls, and so is actually
rather _unlikely_.

decode_attr_mdsthreshold needs to clear FATTR4_WORD2_MDSTHRESHOLD
from the attribute bitmap after it has decoded the data.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Andy Adamson <andros@netapp.com>
wifi-calibration
Trond Myklebust 2012-06-05 09:35:44 -04:00
parent 1549210fcc
commit 029c534737
1 changed files with 2 additions and 1 deletions
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3
fs/nfs/nfs4xdr.c
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@ -4360,7 +4360,7 @@ static int decode_attr_mdsthreshold(struct xdr_stream *xdr,
if (unlikely(bitmap[2] & (FATTR4_WORD2_MDSTHRESHOLD - 1U)))
return -EIO;
if (likely(bitmap[2] & FATTR4_WORD2_MDSTHRESHOLD)) {
if (bitmap[2] & FATTR4_WORD2_MDSTHRESHOLD) {
/* Did the server return an unrequested attribute? */
if (unlikely(res == NULL))
return -EREMOTEIO;
@ -4376,6 +4376,7 @@ static int decode_attr_mdsthreshold(struct xdr_stream *xdr,
__func__);
status = decode_first_threshold_item4(xdr, res);
bitmap[2] &= ~FATTR4_WORD2_MDSTHRESHOLD;
}
return status;
out_overflow: