On Thu, Aug 24, 2017 at 12:56:35PM +0200, Michal Hocko wrote: > On Thu 24-08-17 16:12:47, Anshuman Khandual wrote: > > xfs_btree_split() calls xfs_btree_split_worker() with args.kswapd set > > if current->flags alrady has PF_KSWAPD. Hence we should not again add > > PF_KSWAPD into the current flags inside kswapd context. So drop this > > redundant flag addition. > > I am not familiar with the code but your change seems incorect. The > whole point of args->kswapd is to convey the kswapd context to the > worker which is obviously running in a different context. So this patch > loses the kswapd context.
Yup. That's what the code does, and removing the PF_KSWAPD from it will break it. Cheers, Dave. -- Dave Chinner [email protected]
