Re: [PATCH -next,V2] fscache: support to disable assert macro

[Zizhi Wo]

friendly ping

在 2023/11/8 10:25, Zizhi Wo 写道:
> 在 2023/11/7 20:39, Gao Xiang 写道:
> > On 2023/11/7 18:16, Zizhi Wo wrote:
> > > friendly ping
> > >
> > > 在 2023/11/2 0:34, WoZ1zh1 写道:
> > > > In fs/fscache/internal.h, ASSERT macro is enabled by default and can 
> > > > not
> > > > be disabled, then assert failure will crash the kernel as the BUG() is
> > > > included in the ASSERT macro. Therefore, add FSCACHE_ASSERT to 
> > > > control it.
> >
> > Personally it looks good to me, yet we could also turn
> > them into WARN_ON_ONCE case by case? Anyway, it depends
> > on how David thinks...
> Thank you for your recognition!
>
> Thanks,
> Zizhi Wo
>
> > Thanks,
> > Gao Xiang
> >
> > > > Signed-off-by: WoZ1zh1 <wozizhi@xxxxxxxxxx>
> > > > ---
> > > >   fs/fscache/Kconfig    | 10 ++++++++++
> > > >   fs/fscache/internal.h |  2 +-
> > > >   2 files changed, 11 insertions(+), 1 deletion(-)
> > > >
> > > > diff --git a/fs/fscache/Kconfig b/fs/fscache/Kconfig
> > > > index b313a978ae0a..7ff844038bc3 100644
> > > > --- a/fs/fscache/Kconfig
> > > > +++ b/fs/fscache/Kconfig
> > > > @@ -38,3 +38,13 @@ config FSCACHE_DEBUG
> > > >         enabled by setting bits in 
> > > > /sys/modules/fscache/parameter/debug.
> > > >         See Documentation/filesystems/caching/fscache.rst for more 
> > > > information.
> > > > +
> > > > +config FSCACHE_ASSERT
> > > > +    bool "FSCACHE asserts"
> > > > +    default n
> > > > +    depends on FSCACHE
> > > > +    help
> > > > +      Support the ASSERT mode for failure behavior.
> > > > +      Say N here to disable the ASSERT by default.
> > > > +      Say Y to add assertion checks in some places. But the assertion
> > > > +      failure will result in fatal errors that BUG() the kernel.
> > > > diff --git a/fs/fscache/internal.h b/fs/fscache/internal.h
> > > > index 1336f517e9b1..951166ed772f 100644
> > > > --- a/fs/fscache/internal.h
> > > > +++ b/fs/fscache/internal.h
> > > > @@ -225,7 +225,7 @@ do {                        \
> > > >   /*
> > > >    * assertions
> > > >    */
> > > > -#if 1 /* defined(__KDEBUGALL) */
> > > > +#ifdef CONFIG_FSCACHE_ASSERT
> > > >   #define ASSERT(X)                            \
> > > >   do {                                    \