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hw/9pfs: Use fs driver specific lstat

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Use file system driver specific lstat instead of generic lstat.

Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
This commit is contained in:
M. Mohan Kumar 2011-10-11 11:15:56 +05:30 committed by Aneesh Kumar K.V
parent 49a88ce370
commit 7cca27dfde
1 changed files with 23 additions and 10 deletions
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33
hw/9pfs/virtio-9p-device.c
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@ -50,6 +50,7 @@ VirtIODevice *virtio_9p_init(DeviceState *dev, V9fsConf *conf)
int i, len;
struct stat stat;
FsTypeEntry *fse;
V9fsPath path;
s = (V9fsState *)virtio_common_init("virtio-9p",
VIRTIO_ID_9P,
@ -107,14 +108,6 @@ VirtIODevice *virtio_9p_init(DeviceState *dev, V9fsConf *conf)
s->ctx.xops = none_xattr_ops;
}
if (lstat(fse->path, &stat)) {
fprintf(stderr, "share path %s does not exist\n", fse->path);
exit(1);
} else if (!S_ISDIR(stat.st_mode)) {
fprintf(stderr, "share path %s is not a directory\n", fse->path);
exit(1);
}
s->ctx.export_flags = fse->export_flags;
s->ctx.fs_root = g_strdup(fse->path);
s->ctx.exops.get_st_gen = NULL;
@ -134,8 +127,7 @@ VirtIODevice *virtio_9p_init(DeviceState *dev, V9fsConf *conf)
s->ops = fse->ops;
s->vdev.get_features = virtio_9p_get_features;
s->config_size = sizeof(struct virtio_9p_config) +
s->tag_len;
s->config_size = sizeof(struct virtio_9p_config) + s->tag_len;
s->vdev.get_config = virtio_9p_get_config;
s->fid_list = NULL;
qemu_co_rwlock_init(&s->rename_lock);
@ -149,6 +141,27 @@ VirtIODevice *virtio_9p_init(DeviceState *dev, V9fsConf *conf)
fprintf(stderr, "worker thread initialization failed\n");
exit(1);
}
/*
* Check details of export path, We need to use fs driver
* call back to do that. Since we are in the init path, we don't
* use co-routines here.
*/
v9fs_path_init(&path);
if (s->ops->name_to_path(&s->ctx, NULL, "/", &path) < 0) {
fprintf(stderr,
"error in converting name to path %s", strerror(errno));
exit(1);
}
if (s->ops->lstat(&s->ctx, &path, &stat)) {
fprintf(stderr, "share path %s does not exist\n", fse->path);
exit(1);
} else if (!S_ISDIR(stat.st_mode)) {
fprintf(stderr, "share path %s is not a directory\n", fse->path);
exit(1);
}
v9fs_path_free(&path);
return &s->vdev;
}