On Tue, Oct 04, 2022 at 10:13:51AM -0700, Daeho Jeong wrote: > From: Daeho Jeong <daehojeong@xxxxxxxxxx> > > introduce a new ioctl to replace the whole content of a file atomically, > which means it induces truncate and content update at the same time. > We can start it with F2FS_IOC_START_ATOMIC_REPLACE and complete it with > F2FS_IOC_COMMIT_ATOMIC_WRITE. Or abort it with > F2FS_IOC_ABORT_ATOMIC_WRITE. It would be great to Cc Darrick and linux-fsdevel as there have been attempts to do this properly at the VFS level instead of a completely undocumented ioctl.
