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hw/9pfs: Add init callback to fs driver

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This call back can be used to do fs driver specific initialization.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
This commit is contained in:
Aneesh Kumar K.V 2011-08-02 11:35:54 +05:30
parent 2289be19ae
commit 0174fe73e6
3 changed files with 14 additions and 2 deletions
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2
fsdev/file-op-9p.h
View File

@ -19,6 +19,7 @@
#include <sys/stat.h>
#include <sys/uio.h>
#include <sys/vfs.h>
#define SM_LOCAL_MODE_BITS 0600
#define SM_LOCAL_DIR_MODE_BITS 0700
@ -66,6 +67,7 @@ void cred_init(FsCred *);
typedef struct FileOperations
{
int (*init)(struct FsContext *);
int (*lstat)(FsContext *, V9fsPath *, struct stat *);
ssize_t (*readlink)(FsContext *, V9fsPath *, char *, size_t);
int (*chmod)(FsContext *, V9fsPath *, FsCred *);

7
hw/9pfs/virtio-9p-device.c
View File

@ -45,7 +45,7 @@ static void virtio_9p_get_config(VirtIODevice *vdev, uint8_t *config)
}
VirtIODevice *virtio_9p_init(DeviceState *dev, V9fsConf *conf)
{
{
V9fsState *s;
int i, len;
struct stat stat;
@ -133,6 +133,11 @@ VirtIODevice *virtio_9p_init(DeviceState *dev, V9fsConf *conf)
s->fid_list = NULL;
qemu_co_rwlock_init(&s->rename_lock);
if (s->ops->init(&s->ctx) < 0) {
fprintf(stderr, "Virtio-9p Failed to initialize fs-driver with id:%s"
" and export path:%s\n", conf->fsdev_id, s->ctx.fs_root);
exit(1);
}
if (v9fs_init_worker_threads() < 0) {
fprintf(stderr, "worker thread initialization failed\n");
exit(1);

7
hw/9pfs/virtio-9p-local.c
View File

@ -21,7 +21,6 @@
#include <sys/un.h>
#include <attr/xattr.h>
static int local_lstat(FsContext *fs_ctx, V9fsPath *fs_path, struct stat *stbuf)
{
int err;
@ -646,7 +645,13 @@ static int local_unlinkat(FsContext *ctx, V9fsPath *dir,
return ret;
}
static int local_init(FsContext *ctx)
{
return 0;
}
FileOperations local_ops = {
.init = local_init,
.lstat = local_lstat,
.readlink = local_readlink,
.close = local_close,