vboxsf does not break leases on its own, so it can't properly handle the case where the hypervisor changes the data. Don't allow file leases on vboxsf. Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx> --- Looking over the comments in the code around cache coherency, it seems like it ought to deny file locks as well? We could add a stub ->lock routine that just returns -ENOLCK or something. --- fs/vboxsf/file.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/vboxsf/file.c b/fs/vboxsf/file.c index 2307f8037efc..118dedef8ebe 100644 --- a/fs/vboxsf/file.c +++ b/fs/vboxsf/file.c @@ -218,6 +218,7 @@ const struct file_operations vboxsf_reg_fops = { .release = vboxsf_file_release, .fsync = noop_fsync, .splice_read = filemap_splice_read, + .setlease = simple_nosetlease, }; const struct inode_operations vboxsf_reg_iops = { --- base-commit: 0a7b0acecea273c8816f4f5b0e189989470404cf change-id: 20240319-setlease-ce31fb8777b0 Best regards, -- Jeff Layton <jlayton@xxxxxxxxxx>