Darrick J. Wong <darrick.wong@xxxxxxxxxx> wrote: > Where are these FSINFO_FEAT* constants defined, and where are they > documented? > > This generally looks ok to me, but I would like to see documentation > first. Have a look at this branch: https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/log/?h=fsinfo-core Patch "fsinfo: Provide a bitmap of supported features" https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/commit/?h=fsinfo-core&id=9d7651e966331f18c7bfe053237b3627585c3e79 Documentation: https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/commit/?h=fsinfo-core&id=6bb357c42c96c2a5d72ff02d109ce49bd0c455ab David