Given how zfs_getattr() is implemented, zfs_getattr_fast() (used by
->getattr() of zpl inodes) also needs to consider an additional link
count if "snapdir" property is set to "visible".
Without this, # of directories in root inode of each dataset doesn't
match the link count when snapdir is visible.
Reviewed-by: Richard Yao <ryao@gentoo.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tomohiro Kusumi <kusumi.tomohiro@osnexus.com>
Closes #8727
mutex_enter(&zp->z_lock);
generic_fillattr(ip, sp);
+ /*
+ * +1 link count for root inode with visible '.zfs' directory.
+ */
+ if ((zp->z_id == zfsvfs->z_root) && zfs_show_ctldir(zp))
+ if (sp->nlink < ZFS_LINK_MAX)
+ sp->nlink++;
sa_object_size(zp->z_sa_hdl, &blksize, &nblocks);
sp->blksize = blksize;