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| author | Chuck Lever <chuck.lever@oracle.com> | 2023-04-14 20:18:15 -0400 |
|---|---|---|
| committer | Chuck Lever <chuck.lever@oracle.com> | 2023-04-27 18:49:23 -0400 |
| commit | 6a0cdf56bfc9a1791ddd6955d60f3678523e599c (patch) | |
| tree | a5b156e0b6fbe3979be4da99385e23061fed2570 /net/sunrpc/svc.c | |
| parent | 647a2a6428f2cd01e53079ac16e17fdeff229e68 (diff) | |
| download | linux-6a0cdf56bfc9a1791ddd6955d60f3678523e599c.tar.gz linux-6a0cdf56bfc9a1791ddd6955d60f3678523e599c.tar.bz2 linux-6a0cdf56bfc9a1791ddd6955d60f3678523e599c.zip | |
SUNRPC: Be even lazier about releasing pages
A single RPC transaction that touches only a couple of pages means
rq_pvec will not be even close to full in svc_xpt_release(). This is
a common case.
Instead, just leave the pages in rq_pvec until it is completely
full. This improves the efficiency of the batch release mechanism
on workloads that involve small RPC messages.
The rq_pvec is also fully emptied just before thread exit.
Reviewed-by: Calum Mackay <calum.mackay@oracle.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'net/sunrpc/svc.c')
| -rw-r--r-- | net/sunrpc/svc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c index b982f802f2a0..26367cf4c17a 100644 --- a/net/sunrpc/svc.c +++ b/net/sunrpc/svc.c @@ -649,6 +649,8 @@ svc_rqst_alloc(struct svc_serv *serv, struct svc_pool *pool, int node) if (!rqstp) return rqstp; + pagevec_init(&rqstp->rq_pvec); + __set_bit(RQ_BUSY, &rqstp->rq_flags); rqstp->rq_server = serv; rqstp->rq_pool = pool; @@ -894,6 +896,7 @@ void svc_rqst_release_pages(struct svc_rqst *rqstp) void svc_rqst_free(struct svc_rqst *rqstp) { + pagevec_release(&rqstp->rq_pvec); svc_release_buffer(rqstp); if (rqstp->rq_scratch_page) put_page(rqstp->rq_scratch_page); |