From 152a08366671080f27b32e0c411ad620c5f88b57 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 25 Jul 2010 00:46:55 +0400 Subject: new helper: mount_bdev() ... and switch of the obvious get_sb_bdev() users to ->mount() Signed-off-by: Al Viro --- fs/super.c | 28 +++++++++++++++++++++------- 1 file changed, 21 insertions(+), 7 deletions(-) (limited to 'fs/super.c') diff --git a/fs/super.c b/fs/super.c index 00a2c9662b55..40989e9a2606 100644 --- a/fs/super.c +++ b/fs/super.c @@ -762,10 +762,9 @@ static int test_bdev_super(struct super_block *s, void *data) return (void *)s->s_bdev == data; } -int get_sb_bdev(struct file_system_type *fs_type, +struct dentry *mount_bdev(struct file_system_type *fs_type, int flags, const char *dev_name, void *data, - int (*fill_super)(struct super_block *, void *, int), - struct vfsmount *mnt) + int (*fill_super)(struct super_block *, void *, int)) { struct block_device *bdev; struct super_block *s; @@ -777,7 +776,7 @@ int get_sb_bdev(struct file_system_type *fs_type, bdev = open_bdev_exclusive(dev_name, mode, fs_type); if (IS_ERR(bdev)) - return PTR_ERR(bdev); + return ERR_CAST(bdev); /* * once the super is inserted into the list by sget, s_umount @@ -829,15 +828,30 @@ int get_sb_bdev(struct file_system_type *fs_type, bdev->bd_super = s; } - simple_set_mnt(mnt, s); - return 0; + return dget(s->s_root); error_s: error = PTR_ERR(s); error_bdev: close_bdev_exclusive(bdev, mode); error: - return error; + return ERR_PTR(error); +} +EXPORT_SYMBOL(mount_bdev); + +int get_sb_bdev(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data, + int (*fill_super)(struct super_block *, void *, int), + struct vfsmount *mnt) +{ + struct dentry *root; + + root = mount_bdev(fs_type, flags, dev_name, data, fill_super); + if (IS_ERR(root)) + return PTR_ERR(root); + mnt->mnt_root = root; + mnt->mnt_sb = root->d_sb; + return 0; } EXPORT_SYMBOL(get_sb_bdev); -- cgit v1.2.2