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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2011-05-18 16:04:33 -0700
committerAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2011-08-08 23:42:58 +0530
commit8db21ce73aab5e8c47053c9a7d3a833ee62de2d4 (patch)
treee921a036e89b91687731507d5651e8b47db61b00
parent172198d4db28d537f9e2cfb8af3fef9cd4d2b543 (diff)
hw/9pfs: Update v9fs_getattr to use coroutines
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
-rw-r--r--hw/9pfs/virtio-9p.c57
-rw-r--r--hw/9pfs/virtio-9p.h8
2 files changed, 19 insertions, 46 deletions
diff --git a/hw/9pfs/virtio-9p.c b/hw/9pfs/virtio-9p.c
index 69ef717fa3..9fb1b3fe4b 100644
--- a/hw/9pfs/virtio-9p.c
+++ b/hw/9pfs/virtio-9p.c
@@ -1086,7 +1086,7 @@ static int stat_to_v9stat(V9fsState *s, V9fsString *name,
static void stat_to_v9stat_dotl(V9fsState *s, const struct stat *stbuf,
- V9fsStatDotl *v9lstat)
+ V9fsStatDotl *v9lstat)
{
memset(v9lstat, 0, sizeof(*v9lstat));
@@ -1283,57 +1283,38 @@ out:
qemu_free(vs);
}
-static void v9fs_getattr_post_lstat(V9fsState *s, V9fsStatStateDotl *vs,
- int err)
-{
- if (err == -1) {
- err = -errno;
- goto out;
- }
-
- stat_to_v9stat_dotl(s, &vs->stbuf, &vs->v9stat_dotl);
- vs->offset += pdu_marshal(vs->pdu, vs->offset, "A", &vs->v9stat_dotl);
- err = vs->offset;
-
-out:
- complete_pdu(s, vs->pdu, err);
- qemu_free(vs);
-}
-
static void v9fs_getattr(void *opaque)
{
- V9fsPDU *pdu = opaque;
- V9fsState *s = pdu->s;
int32_t fid;
- V9fsStatStateDotl *vs;
- ssize_t err = 0;
+ size_t offset = 7;
+ ssize_t retval = 0;
+ struct stat stbuf;
V9fsFidState *fidp;
uint64_t request_mask;
+ V9fsStatDotl v9stat_dotl;
+ V9fsPDU *pdu = opaque;
+ V9fsState *s = pdu->s;
- vs = qemu_malloc(sizeof(*vs));
- vs->pdu = pdu;
- vs->offset = 7;
-
- memset(&vs->v9stat_dotl, 0, sizeof(vs->v9stat_dotl));
-
- pdu_unmarshal(vs->pdu, vs->offset, "dq", &fid, &request_mask);
+ pdu_unmarshal(pdu, offset, "dq", &fid, &request_mask);
fidp = lookup_fid(s, fid);
if (fidp == NULL) {
- err = -ENOENT;
+ retval = -ENOENT;
goto out;
}
-
- /* Currently we only support BASIC fields in stat, so there is no
+ /*
+ * Currently we only support BASIC fields in stat, so there is no
* need to look at request_mask.
*/
- err = v9fs_do_lstat(s, &fidp->path, &vs->stbuf);
- v9fs_getattr_post_lstat(s, vs, err);
- return;
-
+ retval = v9fs_co_lstat(s, &fidp->path, &stbuf);
+ if (retval < 0) {
+ goto out;
+ }
+ stat_to_v9stat_dotl(s, &stbuf, &v9stat_dotl);
+ retval = offset;
+ retval += pdu_marshal(pdu, offset, "A", &v9stat_dotl);
out:
- complete_pdu(s, vs->pdu, err);
- qemu_free(vs);
+ complete_pdu(s, pdu, retval);
}
/* From Linux kernel code */
diff --git a/hw/9pfs/virtio-9p.h b/hw/9pfs/virtio-9p.h
index eb6cd23540..a62eda078a 100644
--- a/hw/9pfs/virtio-9p.h
+++ b/hw/9pfs/virtio-9p.h
@@ -278,14 +278,6 @@ typedef struct V9fsStatDotl {
uint64_t st_data_version;
} V9fsStatDotl;
-typedef struct V9fsStatStateDotl {
- V9fsPDU *pdu;
- size_t offset;
- V9fsStatDotl v9stat_dotl;
- struct stat stbuf;
-} V9fsStatStateDotl;
-
-
typedef struct V9fsWalkState {
V9fsPDU *pdu;
size_t offset;