mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
synced 2026-11-02 23:54:33 +01:00
Chuck Lever
ef14aa143f
Upper layers such as NFSD need a way to query whether a filesystem handles filenames in a case-sensitive manner. Report VirtualBox shared folder case handling behavior via the FS_XFLAG_CASEFOLD flag. The case sensitivity property is queried from the VirtualBox host service at mount time and cached in struct vboxsf_sbi. The host determines case sensitivity based on the underlying host filesystem (for example, Windows NTFS is case-insensitive while Linux ext4 is case-sensitive). VirtualBox shared folders always preserve filename case exactly as provided by the guest. The host interface does not expose a separate case-preserving property; leaving FS_XFLAG_CASENONPRESERVING unset reports the POSIX-default case-preserving behavior, which matches vboxsf semantics. The callback is registered in all three inode_operations structures (directory, file, and symlink) to ensure consistent reporting across all inode types. Reviewed-by: Roland Mainz <[email protected]> Signed-off-by: Chuck Lever <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Christian Brauner <[email protected]>