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hw/9pfs: Update v9fs_xattrcreate to use coroutines

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

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

@ -399,17 +399,6 @@ typedef struct V9fsRenameState {
V9fsString name; V9fsString name;
} V9fsRenameState; } 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_SUCCESS 0
#define P9_LOCK_BLOCKED 1 #define P9_LOCK_BLOCKED 1