From fe62c3a4e17ddfe672710425ab6eba2ba7203526 Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 27 Mar 2019 14:15:16 +0000 Subject: vfs: Create fs_context-aware mount_bdev() replacement Create a function, get_tree_bdev(), that is fs_context-aware and a ->get_tree() counterpart of mount_bdev(). It caches the block device pointer in the fs_context struct so that this information can be passed into sget_fc()'s test and set functions. Signed-off-by: David Howells cc: Jens Axboe cc: linux-block@vger.kernel.org Signed-off-by: Al Viro --- include/linux/fs_context.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include') diff --git a/include/linux/fs_context.h b/include/linux/fs_context.h index aad5e68d58e2..84a5eaa09f19 100644 --- a/include/linux/fs_context.h +++ b/include/linux/fs_context.h @@ -88,6 +88,7 @@ struct fs_context { struct mutex uapi_mutex; /* Userspace access mutex */ struct file_system_type *fs_type; void *fs_private; /* The filesystem's context */ + void *sget_key; struct dentry *root; /* The root and superblock */ struct user_namespace *user_ns; /* The user namespace for this mount */ struct net *net_ns; /* The network namespace for this mount */ @@ -159,6 +160,10 @@ extern int get_tree_keyed(struct fs_context *fc, struct fs_context *fc), void *key); +extern int get_tree_bdev(struct fs_context *fc, + int (*fill_super)(struct super_block *sb, + struct fs_context *fc)); + extern const struct file_operations fscontext_fops; /* -- cgit v1.2.3