[Qemu-devel] [PATCH -V4 05/26] [virtio-9p] clean up v9fs_readlink.

["Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>]

From: Venkateswararao Jujjuri (JV) <jvrao@linux.vnet.ibm.com>

Rearrange the code so that we can avoid V9fsReadLinkState.

Signed-off-by: Venkateswararao Jujjuri "<jvrao@linux.vnet.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
---
 hw/9pfs/virtio-9p.c |   25 ++++++++++---------------
 hw/9pfs/virtio-9p.h |    7 -------
 2 files changed, 10 insertions(+), 22 deletions(-)

diff --git a/hw/9pfs/virtio-9p.c b/hw/9pfs/virtio-9p.c
index fa83058..63217e9 100644
--- a/hw/9pfs/virtio-9p.c
+++ b/hw/9pfs/virtio-9p.c
@@ -3585,35 +3585,30 @@ out:
 static void v9fs_readlink(void *opaque)
 {
     V9fsPDU *pdu = opaque;
-    V9fsState *s = pdu->s;
+    size_t offset = 7;
+    V9fsString target;
     int32_t fid;
-    V9fsReadLinkState *vs;
     int err = 0;
     V9fsFidState *fidp;
 
-    vs = qemu_malloc(sizeof(*vs));
-    vs->pdu = pdu;
-    vs->offset = 7;
-
-    pdu_unmarshal(vs->pdu, vs->offset, "d", &fid);
-    fidp = lookup_fid(s, fid);
+    pdu_unmarshal(pdu, offset, "d", &fid);
+    fidp = lookup_fid(pdu->s, fid);
     if (fidp == NULL) {
         err = -ENOENT;
         goto out;
     }
 
-    v9fs_string_init(&vs->target);
-    err = v9fs_do_readlink(s, &fidp->path, &vs->target);
+    v9fs_string_init(&target);
+    err = v9fs_do_readlink(pdu->s, &fidp->path, &target);
     if (err < 0) {
         err = -errno;
         goto out;
     }
-    vs->offset += pdu_marshal(vs->pdu, vs->offset, "s", &vs->target);
-    err = vs->offset;
+    offset += pdu_marshal(pdu, offset, "s", &target);
+    err = offset;
 out:
-    complete_pdu(s, vs->pdu, err);
-    v9fs_string_free(&vs->target);
-    qemu_free(vs);
+    v9fs_string_free(&target);
+    complete_pdu(pdu->s, pdu, err);
 }
 
 static CoroutineEntry *pdu_co_handlers[] = {
diff --git a/hw/9pfs/virtio-9p.h b/hw/9pfs/virtio-9p.h
index fb1e465..e95b63d 100644
--- a/hw/9pfs/virtio-9p.h
+++ b/hw/9pfs/virtio-9p.h
@@ -495,13 +495,6 @@ typedef struct V9fsGetlockState
     V9fsGetlock *glock;
 } V9fsGetlockState;
 
-typedef struct V9fsReadLinkState
-{
-    V9fsPDU *pdu;
-    size_t offset;
-    V9fsString target;
-} V9fsReadLinkState;
-
 size_t pdu_packunpack(void *addr, struct iovec *sg, int sg_count,
                       size_t offset, size_t size, int pack);
 
-- 
1.7.4.1