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Commit ce6cda18 authored by Chuck Lever's avatar Chuck Lever Committed by Trond Myklebust
Browse files

NFS: Add a super_block backpointer to the nfs_server struct 



NFS_SB() returns the pointer to an nfs_server struct, given a
pointer to a super_block.  But we have no way to go back the other
way.

Add a super_block backpointer field so that, given an nfs_server
struct, it is easy to get to the filesystem's root dentry.

Signed-off-by: default avatarChuck Lever <chuck.lever@oracle.com>
Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent b03d735b

fs/nfs/super.c

+1 −0
Original line number Diff line number Diff line
@@ -2534,6 +2534,7 @@ struct dentry *nfs_fs_mount_common(struct nfs_server *server, 
			mntroot = ERR_PTR(error);

			goto error_splat_bdi;

		}

		server->super = s;

	}



	if (!s->s_root) {

include/linux/nfs_fs_sb.h

+1 −0
Original line number Diff line number Diff line
@@ -148,6 +148,7 @@ struct nfs_server { 
	__u64			maxfilesize;	/* maximum file size */

	struct timespec		time_delta;	/* smallest time granularity */

	unsigned long		mount_time;	/* when this fs was mounted */

	struct super_block	*super;		/* VFS super block */

	dev_t			s_dev;		/* superblock dev numbers */



#ifdef CONFIG_NFS_FSCACHE