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hw/9pfs: Update v9fs_xattrcreate to use coroutines 

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
This commit is contained in:
Aneesh Kumar K.V 2011-05-18 16:06:26 -07:00
parent 670185a641
commit f10ff58d01
2 changed files with 26 additions and 38 deletions
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53
hw/9pfs/virtio-9p.c
View File

@ -3346,43 +3346,42 @@ out:
static void v9fs_xattrcreate(void *opaque)
{
V9fsPDU *pdu = opaque;
V9fsState *s = pdu->s;
int flags;
int32_t fid;
int64_t size;
ssize_t err = 0;
V9fsXattrState *vs;
V9fsString name;
size_t offset = 7;
V9fsFidState *file_fidp;
V9fsFidState *xattr_fidp;
V9fsPDU *pdu = opaque;
V9fsState *s = pdu->s;
vs = qemu_malloc(sizeof(*vs));
vs->pdu = pdu;
vs->offset = 7;
pdu_unmarshal(pdu, offset, "dsqd",
&fid, &name, &size, &flags);
pdu_unmarshal(vs->pdu, vs->offset, "dsqd",
&fid, &vs->name, &vs->size, &flags);
vs->file_fidp = lookup_fid(s, fid);
if (vs->file_fidp == NULL) {
file_fidp = lookup_fid(s, fid);
if (file_fidp == NULL) {
err = -EINVAL;
goto out;
}
/* Make the file fid point to xattr */
vs->xattr_fidp = vs->file_fidp;
vs->xattr_fidp->fid_type = P9_FID_XATTR;
vs->xattr_fidp->fs.xattr.copied_len = 0;
vs->xattr_fidp->fs.xattr.len = vs->size;
vs->xattr_fidp->fs.xattr.flags = flags;
v9fs_string_init(&vs->xattr_fidp->fs.xattr.name);
v9fs_string_copy(&vs->xattr_fidp->fs.xattr.name, &vs->name);
if (vs->size)
vs->xattr_fidp->fs.xattr.value = qemu_malloc(vs->size);
else
vs->xattr_fidp->fs.xattr.value = NULL;
xattr_fidp = file_fidp;
xattr_fidp->fid_type = P9_FID_XATTR;
xattr_fidp->fs.xattr.copied_len = 0;
xattr_fidp->fs.xattr.len = size;
xattr_fidp->fs.xattr.flags = flags;
v9fs_string_init(&xattr_fidp->fs.xattr.name);
v9fs_string_copy(&xattr_fidp->fs.xattr.name, &name);
if (size) {
xattr_fidp->fs.xattr.value = qemu_malloc(size);
} else {
xattr_fidp->fs.xattr.value = NULL;
}
err = offset;
out:
complete_pdu(s, vs->pdu, err);
v9fs_string_free(&vs->name);
qemu_free(vs);
complete_pdu(s, pdu, err);
v9fs_string_free(&name);
}
static void v9fs_readlink(void *opaque)

11
hw/9pfs/virtio-9p.h
View File

@ -399,17 +399,6 @@ typedef struct V9fsRenameState {
V9fsString name;
} V9fsRenameState;
typedef struct V9fsXattrState
{
V9fsPDU *pdu;
size_t offset;
V9fsFidState *file_fidp;
V9fsFidState *xattr_fidp;
V9fsString name;
int64_t size;
int flags;
void *value;
} V9fsXattrState;
#define P9_LOCK_SUCCESS 0
#define P9_LOCK_BLOCKED 1