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Commit e890db01 authored by Scott Mayhew's avatar Scott Mayhew Committed by Trond Myklebust
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NFSv4: Fix the sync mount option for nfs4 mounts 



The sync mount option stopped working for NFSv4 mounts after commit
c02d7adf (NFSv4: Replace nfs4_path_walk() with
FS path lookup in a private namespace).  If MS_SYNCHRONOUS is set in the
super_block that we're cloning from, then it should be set in the new
super_block as well.

Signed-off-by: default avatarScott Mayhew <smayhew@redhat.com>
Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent f8806c84

fs/nfs/super.c

+4 −0
Original line number Original line Diff line number Diff line
@@ -2478,6 +2478,10 @@ struct dentry *nfs_fs_mount_common(struct nfs_server *server, 
	if (server->flags & NFS_MOUNT_NOAC)

	if (server->flags & NFS_MOUNT_NOAC)

		sb_mntdata.mntflags |= MS_SYNCHRONOUS;

		sb_mntdata.mntflags |= MS_SYNCHRONOUS;





	if (mount_info->cloned != NULL && mount_info->cloned->sb != NULL)

		if (mount_info->cloned->sb->s_flags & MS_SYNCHRONOUS)

			sb_mntdata.mntflags |= MS_SYNCHRONOUS;



	/* Get a superblock - note that we may end up sharing one that already exists */

	/* Get a superblock - note that we may end up sharing one that already exists */

	s = sget(nfs_mod->nfs_fs, compare_super, nfs_set_super, flags, &sb_mntdata);

	s = sget(nfs_mod->nfs_fs, compare_super, nfs_set_super, flags, &sb_mntdata);

	if (IS_ERR(s)) {

	if (IS_ERR(s)) {