Re: [PATCH v3] introduce sys_syncfs to sync a single file system
From: Arnd Bergmann <arnd@arndb.de>
Date: 2011-03-14 21:23:29
Also in:
linux-fsdevel, lkml
On Monday 14 March 2011 22:11:19 Ted Ts'o wrote:
quoted hunk ↗ jump to hunk
It wouldn't hurt to have a "flags" field which we could expand later--- but that can lead to portability headaches for userspace programsthat don't know whether a particular kernel is going to support a particular flag or not. So it's certainly not a panacea.
I think adding an unused flags argument can't hurt. We could be fancy and ignore half the bits but bail out on the other half with -EINVAL. That would make it possible to add both compatible (default being full sync on old kernels) and incompatible (getting rejected on old kernels) flags. Arnd