On Fri, Jan 19, 2024 at 03:47:33PM -0300, Gabriel Krisman Bertazi wrote: > ovl: Reject mounting case-insensitive filesystems Overlayfs doesn't mount filesystems. I think you might mean something like reject case-insensitive lowerdirs? > + /* > + * Root dentries of case-insensitive filesystems might not have > + * the dentry operations set, but still be incompatible with > + * overlayfs. Check explicitly to prevent post-mount failures. > + */ > + if (sb_has_encoding(path->mnt->mnt_sb)) > + return invalfc(fc, "case-insensitive filesystem on %s not supported", name); sb_has_encoding() doesn't mean that the filesystem is case-insensitive. It means that the filesystem supports individual case-insensitive directories. With that in mind, is this code still working as intended? If so, can you update the comment and error message accordingly? - Eric