Andrew Morton
2018-Jun-04 23:05 UTC
[Ocfs2-devel] [PATCH v2] fs: ocfs2: Adding new return type vm_fault_t
On Sat, 2 Jun 2018 11:46:17 +0530 Souptick Joarder <jrdr.linux at gmail.com> wrote:> On Sat, Jun 2, 2018 at 5:17 AM, Andrew Morton <akpm at linux-foundation.org> wrote: > > On Wed, 23 May 2018 21:02:58 +0530 Souptick Joarder <jrdr.linux at gmail.com> wrote: > > > >> Use new return type vm_fault_t for fault handler. For > >> now, this is just documenting that the function returns > >> a VM_FAULT value rather than an errno. Once all instances > >> are converted, vm_fault_t will become a distinct type. > >> > >> Ref-> commit 1c8f422059ae ("mm: change return type to vm_fault_t") > >> > >> vmf_error() is the newly introduce inline function > >> in 4.18. > >> > >> Fix one checkpatch.pl warning by replacing BUG_ON() > >> with WARN_ON() > > > > err, no, I'll revert that part. > > > > It could be that if this assertion triggers then filesystem corruption > > would ensue, in which case a BUG_ON() is the appropriate handling. > > Such a change should be submitted separately, please. > > > > In few places checkpatch.pl throwing warning to replace BUG_ON() > with WARN_ON(). Shall we ignore these warning or it will vary across > patches ?Such changes are unrelated to the vm_fault_t migration, so please don't make them in this context. It is true that we tend to be too eager to use BUG_ON(), but addressing such things should be done one-at-a-time, as a separate project.