Hi Tejun, Sorry for the late reply.
On Sat, Sep 21, 2019 at 6:04 AM Tejun Heo <[email protected]> wrote: > > On Fri, Sep 20, 2019 at 05:47:45PM +0900, Namhyung Kim wrote: > > Thanks for the sharing information! For 32-bit, while the ino itself is not > > monotonic, gen << 32 + ino is monotonic right? I think we can use the > > It's not. gen gets incremented on every allocation, so it has not > high but still realistic chance of collisions. In __kernfs_new_node(), gen gets increased only if idr_alloc_cyclic() returns lower than the cursor... I'm not sure you talked about it. Thanks Namhyung
