[lustre-devel] [PATCH 11/21] lustre: cl_object: remove vestigial debugging.

[NeilBrown <neilb@suse.com>]

On Fri, Feb 08 2019, Andreas Dilger wrote:

> On Feb 6, 2019, at 17:03, NeilBrown <neilb@suse.com> wrote:
>> 
>> cl_env_inc() and cl_env_dec() don't do anything,
>> so discard them.
>> 
>> Signed-off-by: NeilBrown <neilb@suse.com>
>
> It looks like these were being used for debugging page allocations,
> wrapped under CONFIG_DEBUG_PAGESTATE_TRACKING, but that was dropped
> from the upstream kernel.  It looks like you could also delete
> cs_page_inc() and cs_page_dec() along with enum cache_stat_item,
> since they are also wrapped under the same CONFIG value.

cs_page_inc/dec were never in driver/staging.
CS_PAGE_INC/DEC were for a while, but were removed nearly 4 years ago.

Commit 76c807210aea ("staging: lustre: cl_page: delete empty macros")

>
> Reviewed-by: Andreas Dilger <adilger@whamcloud.com>

Thanks,
NeilBrown

>
>> ---
>> drivers/staging/lustre/lustre/obdclass/cl_object.c |   15 ---------------
>> 1 file changed, 15 deletions(-)
>> 
>> diff --git a/drivers/staging/lustre/lustre/obdclass/cl_object.c b/drivers/staging/lustre/lustre/obdclass/cl_object.c
>> index d71a680660da..1e704078664e 100644
>> --- a/drivers/staging/lustre/lustre/obdclass/cl_object.c
>> +++ b/drivers/staging/lustre/lustre/obdclass/cl_object.c
>> @@ -565,14 +565,6 @@ struct cl_env {
>> 	void		       *ce_debug;
>> };
>> 
>> -static void cl_env_inc(enum cache_stats_item item)
>> -{
>> -}
>> -
>> -static void cl_env_dec(enum cache_stats_item item)
>> -{
>> -}
>> -
>> static void cl_env_init0(struct cl_env *cle, void *debug)
>> {
>> 	LASSERT(cle->ce_ref == 0);
>> @@ -581,7 +573,6 @@ static void cl_env_init0(struct cl_env *cle, void *debug)
>> 
>> 	cle->ce_ref = 1;
>> 	cle->ce_debug = debug;
>> -	cl_env_inc(CS_busy);
>> }
>> 
>> static struct lu_env *cl_env_new(u32 ctx_tags, u32 ses_tags, void *debug)
>> @@ -611,9 +602,6 @@ static struct lu_env *cl_env_new(u32 ctx_tags, u32 ses_tags, void *debug)
>> 		if (rc != 0) {
>> 			kmem_cache_free(cl_env_kmem, cle);
>> 			env = ERR_PTR(rc);
>> -		} else {
>> -			cl_env_inc(CS_create);
>> -			cl_env_inc(CS_total);
>> 		}
>> 	} else {
>> 		env = ERR_PTR(-ENOMEM);
>> @@ -623,7 +611,6 @@ static struct lu_env *cl_env_new(u32 ctx_tags, u32 ses_tags, void *debug)
>> 
>> static void cl_env_fini(struct cl_env *cle)
>> {
>> -	cl_env_dec(CS_total);
>> 	lu_context_fini(&cle->ce_lu.le_ctx);
>> 	lu_context_fini(&cle->ce_ses);
>> 	kmem_cache_free(cl_env_kmem, cle);
>> @@ -782,7 +769,6 @@ void cl_env_put(struct lu_env *env, u16 *refcheck)
>> 	if (--cle->ce_ref == 0) {
>> 		int cpu = get_cpu();
>> 
>> -		cl_env_dec(CS_busy);
>> 		cle->ce_debug = NULL;
>> 		cl_env_exit(cle);
>> 		/*
>> @@ -903,7 +889,6 @@ void cl_env_percpu_put(struct lu_env *env)
>> 	cle->ce_ref--;
>> 	LASSERT(cle->ce_ref == 0);
>> 
>> -	cl_env_dec(CS_busy);
>> 	cle->ce_debug = NULL;
>> 
>> 	put_cpu();
>> 
>> 
>
> Cheers, Andreas
> ---
> Andreas Dilger
> CTO Whamcloud
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