On Mon, Jun 21, 2021 at 04:09:56PM +0200, Christoph Hellwig wrote: > On Mon, Jun 21, 2021 at 03:03:07PM +0100, Matthew Wilcox wrote: > > i suggested that to viro last night, and he pointed out that ioctl(S_SYNC) > > Where would that S_SYNC ioctl be implemented? S_SYNC is not an ioctl, it's an inode flag settable by such. FS_IOC_SETFLAGS with FS_SYNC_FL in flags, or FS_IOC_FSSETXATTR with FS_XFLAG_SYNC.
