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svc: Move kfree of deferral record to common code 

The rqstp structure has a pointer to a svc_deferred_req record
that is allocated when requests are deferred. This record is common
to all transports and can be freed in common code.

Move the kfree of the rq_deferred to the common svc_xprt_release
function.

This also fixes a memory leak in the RDMA transport which does not
kfree the dr structure in it's version of the xpo_release_rqst callback.

Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
This commit is contained in:
Tom Tucker 2009-01-05 11:12:52 -06:00 committed by J. Bruce Fields
parent f05ef8db1a
commit 2779e3ae39
2 changed files with 3 additions and 5 deletions
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3
net/sunrpc/svc_xprt.c
View File

@ -448,6 +448,9 @@ static void svc_xprt_release(struct svc_rqst *rqstp)
rqstp->rq_xprt->xpt_ops->xpo_release_rqst(rqstp);
kfree(rqstp->rq_deferred);
rqstp->rq_deferred = NULL;
svc_free_res_pages(rqstp);
rqstp->rq_res.page_len = 0;
rqstp->rq_res.page_base = 0;

5
net/sunrpc/svcsock.c
View File

@ -103,7 +103,6 @@ static void svc_reclassify_socket(struct socket *sock)
static void svc_release_skb(struct svc_rqst *rqstp)
{
struct sk_buff *skb = rqstp->rq_xprt_ctxt;
struct svc_deferred_req *dr = rqstp->rq_deferred;
if (skb) {
struct svc_sock *svsk =
@ -113,10 +112,6 @@ static void svc_release_skb(struct svc_rqst *rqstp)
dprintk("svc: service %p, releasing skb %p\n", rqstp, skb);
skb_free_datagram(svsk->sk_sk, skb);
}
if (dr) {
rqstp->rq_deferred = NULL;
kfree(dr);
}
}
union svc_pktinfo_u {