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NFSD: Use set_bit(RQ_DROPME)

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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>
This commit is contained in:
Chuck Lever 2023-01-07 10:15:35 -05:00
parent 7827c81f02
commit 5304930dba
1 changed files with 2 additions and 2 deletions
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4
fs/nfsd/nfsproc.c
View file

@ -211,7 +211,7 @@ nfsd_proc_read(struct svc_rqst *rqstp)
if (resp->status == nfs_ok)
resp->status = fh_getattr(&resp->fh, &resp->stat);
else if (resp->status == nfserr_jukebox)
__set_bit(RQ_DROPME, &rqstp->rq_flags);
set_bit(RQ_DROPME, &rqstp->rq_flags);
return rpc_success;
}
@ -246,7 +246,7 @@ nfsd_proc_write(struct svc_rqst *rqstp)
if (resp->status == nfs_ok)
resp->status = fh_getattr(&resp->fh, &resp->stat);
else if (resp->status == nfserr_jukebox)
__set_bit(RQ_DROPME, &rqstp->rq_flags);
set_bit(RQ_DROPME, &rqstp->rq_flags);
return rpc_success;
}