NFSD: Use set_bit(RQ_DROPME)
[ Upstream commit5304930dba
] The premise that "Once an svc thread is scheduled and executing an RPC, no other processes will touch svc_rqst::rq_flags" is false. svc_xprt_enqueue() examines the RQ_BUSY flag in scheduled nfsd threads when determining which thread to wake up next. Fixes:9315564747
("NFSD: Use only RQ_DROPME to signal the need to drop a reply") Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
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@ -211,7 +211,7 @@ nfsd_proc_read(struct svc_rqst *rqstp)
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if (resp->status == nfs_ok)
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if (resp->status == nfs_ok)
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resp->status = fh_getattr(&resp->fh, &resp->stat);
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resp->status = fh_getattr(&resp->fh, &resp->stat);
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else if (resp->status == nfserr_jukebox)
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else if (resp->status == nfserr_jukebox)
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__set_bit(RQ_DROPME, &rqstp->rq_flags);
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set_bit(RQ_DROPME, &rqstp->rq_flags);
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return rpc_success;
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return rpc_success;
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}
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}
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@ -246,7 +246,7 @@ nfsd_proc_write(struct svc_rqst *rqstp)
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if (resp->status == nfs_ok)
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if (resp->status == nfs_ok)
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resp->status = fh_getattr(&resp->fh, &resp->stat);
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resp->status = fh_getattr(&resp->fh, &resp->stat);
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else if (resp->status == nfserr_jukebox)
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else if (resp->status == nfserr_jukebox)
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__set_bit(RQ_DROPME, &rqstp->rq_flags);
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set_bit(RQ_DROPME, &rqstp->rq_flags);
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return rpc_success;
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return rpc_success;
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}
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}
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