This VFS module is part of the samba(7) suite.
vfs_linux_xfs_sgid is a VFS module to work around an old Linux XFS bug fixed in 3.11: the SGID bit is not inherited during mkdir when a default ACL is set (https://web.archive.org/web/20160320180937/http://oss.sgi.com/bugzilla/show_bug.cgi?id=280 fixed by https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=42c49d7f249c2487f36d3314753d5d8ebcee8249). The vfs_linux_xfs_sgid VFS module will work around this bug by manually setting the SGID bit after a mkdir if the parent directory had the SGID bit set.
Add syncops functionality for [share]:
[share] m[blue]vfs objects = linux_xfs_sgidm
The original Samba software and related utilities were created by Andrew Tridgell. Samba is now developed by the Samba Team as an Open Source project similar to the way the Linux kernel is developed.