nfsd4: helper function for getting mounted_on ino (ae7095a7) · Commits · e / devices / android_kernel_teracube_emerald

fs/nfsd/nfs4xdr.c

+18 −12

Original line number	Original line	Diff line number	Diff line
	@@ -2014,6 +2014,22 @@ static __be32 fattr_handle_absent_fs(u32 bmval0, u32 bmval1, u32 *rdattr_err)
	return 0;		return 0;
	}		}


			static int get_parent_attributes(struct svc_export exp, struct kstat stat)
			{
			struct path path = exp->ex_path;
			int err;

			path_get(&path);
			while (follow_up(&path)) {
			if (path.dentry != path.mnt->mnt_root)
			break;
			}
			err = vfs_getattr(path.mnt, path.dentry, stat);
			path_put(&path);
			return err;
			}

	/*		/*
	* Note: @fhp can be NULL; in this case, we might have to compose the filehandle		* Note: @fhp can be NULL; in this case, we might have to compose the filehandle
	* ourselves.		* ourselves.
	@@ -2430,18 +2446,8 @@ nfsd4_encode_fattr(struct svc_fh fhp, struct svc_export exp,
	* and this is the root of a cross-mounted filesystem.		* and this is the root of a cross-mounted filesystem.
	*/		*/
	if (ignore_crossmnt == 0 &&		if (ignore_crossmnt == 0 &&
	dentry == exp->ex_path.mnt->mnt_root) {		dentry == exp->ex_path.mnt->mnt_root)
	struct path path = exp->ex_path;		get_parent_attributes(exp, &stat);
	path_get(&path);
	while (follow_up(&path)) {
	if (path.dentry != path.mnt->mnt_root)
	break;
	}
	err = vfs_getattr(path.mnt, path.dentry, &stat);
	path_put(&path);
	if (err)
	goto out_nfserr;
	}
	WRITE64(stat.ino);		WRITE64(stat.ino);
	}		}
	if (bmval2 & FATTR4_WORD2_SUPPATTR_EXCLCREAT) {		if (bmval2 & FATTR4_WORD2_SUPPATTR_EXCLCREAT) {