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authorLinus Torvalds <torvalds@linux-foundation.org>2024-04-06 09:37:50 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2024-04-06 09:37:50 -0700
commitf2f80ac809875855ac843f9e5e7480604b5cbff5 (patch)
treee4503e4bbe17611fc402aacea84054065e37c0da /net
parentcf17b9503f1781af60f414c183c1dda8cdba696f (diff)
parent10396f4df8b75ff6ab0aa2cd74296565466f2c8d (diff)
Merge tag 'nfsd-6.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Pull nfsd fixes from Chuck Lever: - Address a slow memory leak with RPC-over-TCP - Prevent another NFS4ERR_DELAY loop during CREATE_SESSION * tag 'nfsd-6.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: nfsd: hold a lighter-weight client reference over CB_RECALL_ANY SUNRPC: Fix a slow server-side memory leak with RPC-over-TCP
Diffstat (limited to 'net')
-rw-r--r--net/sunrpc/svcsock.c10
1 files changed, 1 insertions, 9 deletions
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 545017a3daa4..6b3f01beb294 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -1206,15 +1206,6 @@ err_noclose:
* MSG_SPLICE_PAGES is used exclusively to reduce the number of
* copy operations in this path. Therefore the caller must ensure
* that the pages backing @xdr are unchanging.
- *
- * Note that the send is non-blocking. The caller has incremented
- * the reference count on each page backing the RPC message, and
- * the network layer will "put" these pages when transmission is
- * complete.
- *
- * This is safe for our RPC services because the memory backing
- * the head and tail components is never kmalloc'd. These always
- * come from pages in the svc_rqst::rq_pages array.
*/
static int svc_tcp_sendmsg(struct svc_sock *svsk, struct svc_rqst *rqstp,
rpc_fraghdr marker, unsigned int *sentp)
@@ -1244,6 +1235,7 @@ static int svc_tcp_sendmsg(struct svc_sock *svsk, struct svc_rqst *rqstp,
iov_iter_bvec(&msg.msg_iter, ITER_SOURCE, rqstp->rq_bvec,
1 + count, sizeof(marker) + rqstp->rq_res.len);
ret = sock_sendmsg(svsk->sk_sock, &msg);
+ page_frag_free(buf);
if (ret < 0)
return ret;
*sentp += ret;