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authorChristian Schoenebeck <linux_oss@crudebyte.com>2022-07-15 23:33:09 +0200
committerDominique Martinet <asmadeus@codewreck.org>2022-10-05 07:05:41 +0900
commit01d205d936ae18532e14814808592b926aacc6d5 (patch)
tree34eabe10a371b919e9c2b48e03289a4bbe6ab4e4 /net/9p
parent1effdbf94a728b74b23a24ce7b6f1d1d9a2480a4 (diff)
downloadlinux-01d205d936ae18532e14814808592b926aacc6d5.tar.bz2
net/9p: add 'pooled_rbuffers' flag to struct p9_trans_module
This is a preparatory change for the subsequent patch: the RDMA transport pulls the buffers for its 9p response messages from a shared pool. [1] So this case has to be considered when choosing an appropriate response message size in the subsequent patch. Link: https://lore.kernel.org/all/Ys3jjg52EIyITPua@codewreck.org/ [1] Link: https://lkml.kernel.org/r/79d24310226bc4eb037892b5c097ec4ad4819a03.1657920926.git.linux_oss@crudebyte.com Signed-off-by: Christian Schoenebeck <linux_oss@crudebyte.com> Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
Diffstat (limited to 'net/9p')
-rw-r--r--net/9p/trans_fd.c1
-rw-r--r--net/9p/trans_rdma.c1
-rw-r--r--net/9p/trans_virtio.c1
-rw-r--r--net/9p/trans_xen.c1
4 files changed, 4 insertions, 0 deletions
diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c
index 60fcc6b30b46..25d422c473e8 100644
--- a/net/9p/trans_fd.c
+++ b/net/9p/trans_fd.c
@@ -1083,6 +1083,7 @@ p9_fd_create(struct p9_client *client, const char *addr, char *args)
static struct p9_trans_module p9_tcp_trans = {
.name = "tcp",
.maxsize = MAX_SOCK_BUF,
+ .pooled_rbuffers = false,
.def = 0,
.create = p9_fd_create_tcp,
.close = p9_fd_close,
diff --git a/net/9p/trans_rdma.c b/net/9p/trans_rdma.c
index d817d3745238..6ff706760676 100644
--- a/net/9p/trans_rdma.c
+++ b/net/9p/trans_rdma.c
@@ -739,6 +739,7 @@ error:
static struct p9_trans_module p9_rdma_trans = {
.name = "rdma",
.maxsize = P9_RDMA_MAXSIZE,
+ .pooled_rbuffers = true,
.def = 0,
.owner = THIS_MODULE,
.create = rdma_create_trans,
diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index b84d35cf6899..e757f0601304 100644
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -802,6 +802,7 @@ static struct p9_trans_module p9_virtio_trans = {
* page in zero copy.
*/
.maxsize = PAGE_SIZE * (VIRTQUEUE_NUM - 3),
+ .pooled_rbuffers = false,
.def = 1,
.owner = THIS_MODULE,
};
diff --git a/net/9p/trans_xen.c b/net/9p/trans_xen.c
index 227f89cc7237..41c57d40efb6 100644
--- a/net/9p/trans_xen.c
+++ b/net/9p/trans_xen.c
@@ -246,6 +246,7 @@ static irqreturn_t xen_9pfs_front_event_handler(int irq, void *r)
static struct p9_trans_module p9_xen_trans = {
.name = "xen",
.maxsize = 1 << (XEN_9PFS_RING_ORDER + XEN_PAGE_SHIFT - 2),
+ .pooled_rbuffers = false,
.def = 1,
.create = p9_xen_create,
.close = p9_xen_close,