linux-master/fs/namespace.c

277 	return (mnt->mnt_flags & MNT_READONLY) || sb_rdonly(mnt->mnt_sb);
381 	 * s_readonly_remount set (or even SB_RDONLY / MNT_READONLY flags) in
536 	 * seeing MNT_READONLY).
569 	 * MNT_READONLY must become visible before ~MNT_WRITE_HOLD, so writers
570 	 * that become unheld will see MNT_READONLY.
582 		mnt->mnt.mnt_flags |= MNT_READONLY;
598 		if (!(mnt->mnt.mnt_flags & MNT_READONLY)) {
2161 		if (flags & MNT_READONLY)
2754 	    !(mnt_flags & MNT_READONLY))
2778 	bool readonly_request = (mnt_flags & MNT_READONLY);
2786 	mnt->mnt.mnt_flags &= ~MNT_READONLY;
3647 		mnt_flags |= MNT_READONLY;
3924 		mnt_flags |= MNT_READONLY;
4340 	return (!(kattr->attr_set & MNT_READONLY) ||
4341 		(mnt->mnt.mnt_flags & MNT_READONLY)) &&
4729 	if (mnt_flags & MNT_READONLY)
5305 		    !(new_flags & MNT_READONLY))