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convert ceph

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2010-07-26 16:17:55 +04:00
parent 8bcbbf0009
commit a7f9fb205a
1 changed files with 27 additions and 23 deletions
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50
fs/ceph/super.c
View file

@ -635,7 +635,7 @@ static struct dentry *open_root_dentry(struct ceph_fs_client *fsc,
/*
* mount: join the ceph cluster, and open root directory.
*/
static int ceph_mount(struct ceph_fs_client *fsc, struct vfsmount *mnt,
static struct dentry *ceph_real_mount(struct ceph_fs_client *fsc,
const char *path)
{
int err;
@ -678,16 +678,14 @@ static int ceph_mount(struct ceph_fs_client *fsc, struct vfsmount *mnt,
}
}
mnt->mnt_root = root;
mnt->mnt_sb = fsc->sb;
fsc->mount_state = CEPH_MOUNT_MOUNTED;
dout("mount success\n");
err = 0;
mutex_unlock(&fsc->client->mount_mutex);
return root;
out:
mutex_unlock(&fsc->client->mount_mutex);
return err;
return ERR_PTR(err);
fail:
if (first) {
@ -777,41 +775,45 @@ static int ceph_register_bdi(struct super_block *sb,
return err;
}
static int ceph_get_sb(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data,
struct vfsmount *mnt)
static struct dentry *ceph_mount(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data)
{
struct super_block *sb;
struct ceph_fs_client *fsc;
struct dentry *res;
int err;
int (*compare_super)(struct super_block *, void *) = ceph_compare_super;
const char *path = NULL;
struct ceph_mount_options *fsopt = NULL;
struct ceph_options *opt = NULL;
dout("ceph_get_sb\n");
dout("ceph_mount\n");
err = parse_mount_options(&fsopt, &opt, flags, data, dev_name, &path);
if (err < 0)
if (err < 0) {
res = ERR_PTR(err);
goto out_final;
}
/* create client (which we may/may not use) */
fsc = create_fs_client(fsopt, opt);
if (IS_ERR(fsc)) {
err = PTR_ERR(fsc);
res = ERR_CAST(fsc);
kfree(fsopt);
kfree(opt);
goto out_final;
}
err = ceph_mdsc_init(fsc);
if (err < 0)
if (err < 0) {
res = ERR_PTR(err);
goto out;
}
if (ceph_test_opt(fsc->client, NOSHARE))
compare_super = NULL;
sb = sget(fs_type, compare_super, ceph_set_super, fsc);
if (IS_ERR(sb)) {
err = PTR_ERR(sb);
res = ERR_CAST(sb);
goto out;
}
@ -823,16 +825,18 @@ static int ceph_get_sb(struct file_system_type *fs_type,
} else {
dout("get_sb using new client %p\n", fsc);
err = ceph_register_bdi(sb, fsc);
if (err < 0)
if (err < 0) {
res = ERR_PTR(err);
goto out_splat;
}
}
err = ceph_mount(fsc, mnt, path);
if (err < 0)
res = ceph_real_mount(fsc, path);
if (IS_ERR(res))
goto out_splat;
dout("root %p inode %p ino %llx.%llx\n", mnt->mnt_root,
mnt->mnt_root->d_inode, ceph_vinop(mnt->mnt_root->d_inode));
return 0;
dout("root %p inode %p ino %llx.%llx\n", res,
res->d_inode, ceph_vinop(res->d_inode));
return res;
out_splat:
ceph_mdsc_close_sessions(fsc->mdsc);
@ -843,8 +847,8 @@ out:
ceph_mdsc_destroy(fsc);
destroy_fs_client(fsc);
out_final:
dout("ceph_get_sb fail %d\n", err);
return err;
dout("ceph_mount fail %ld\n", PTR_ERR(res));
return res;
}
static void ceph_kill_sb(struct super_block *s)
@ -860,7 +864,7 @@ static void ceph_kill_sb(struct super_block *s)
static struct file_system_type ceph_fs_type = {
.owner = THIS_MODULE,
.name = "ceph",
.get_sb = ceph_get_sb,
.mount = ceph_mount,
.kill_sb = ceph_kill_sb,
.fs_flags = FS_RENAME_DOES_D_MOVE,
};