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[Qemu-devel] [PATCH 3/5] hw/9pfs: Add init callback to fs driver
From: |
Aneesh Kumar K.V |
Subject: |
[Qemu-devel] [PATCH 3/5] hw/9pfs: Add init callback to fs driver |
Date: |
Mon, 6 Jun 2011 23:19:13 +0530 |
This call back can be used to do fs driver specific initialization.
Signed-off-by: Aneesh Kumar K.V <address@hidden>
---
fsdev/file-op-9p.h | 2 ++
hw/9pfs/virtio-9p-device.c | 7 ++++++-
hw/9pfs/virtio-9p-local.c | 7 ++++++-
3 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/fsdev/file-op-9p.h b/fsdev/file-op-9p.h
index 3bab550..bd82fac 100644
--- a/fsdev/file-op-9p.h
+++ b/fsdev/file-op-9p.h
@@ -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
@@ -67,6 +68,7 @@ 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 *);
diff --git a/hw/9pfs/virtio-9p-device.c b/hw/9pfs/virtio-9p-device.c
index 6c8b4bc..2243943 100644
--- a/hw/9pfs/virtio-9p-device.c
+++ b/hw/9pfs/virtio-9p-device.c
@@ -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;
@@ -139,6 +139,11 @@ 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);
diff --git a/hw/9pfs/virtio-9p-local.c b/hw/9pfs/virtio-9p-local.c
index 37be2d5..494ee75 100644
--- a/hw/9pfs/virtio-9p-local.c
+++ b/hw/9pfs/virtio-9p-local.c
@@ -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,
--
1.7.4.1