From: Pengfei Li <lpf.vector@gmail.com>
To: akpm@linux-foundation.org
Cc: mgorman@techsingularity.net, mhocko@suse.com, vbabka@suse.cz,
cai@lca.pw, aryabinin@virtuozzo.com, osalvador@suse.de,
rostedt@goodmis.org, mingo@redhat.com,
pavel.tatashin@microsoft.com, rppt@linux.ibm.com,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Pengfei Li <lpf.vector@gmail.com>
Subject: [PATCH 02/10] mm/page_alloc: use unsigned int for "order" in __rmqueue_fallback()
Date: Fri, 26 Jul 2019 02:42:45 +0800 [thread overview]
Message-ID: <20190725184253.21160-3-lpf.vector@gmail.com> (raw)
In-Reply-To: <20190725184253.21160-1-lpf.vector@gmail.com>
Because "order" will never be negative in __rmqueue_fallback(),
so just make "order" unsigned int.
And modify trace_mm_page_alloc_extfrag() accordingly.
Signed-off-by: Pengfei Li <lpf.vector@gmail.com>
---
include/trace/events/kmem.h | 6 +++---
mm/page_alloc.c | 4 ++--
2 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/include/trace/events/kmem.h b/include/trace/events/kmem.h
index eb57e3037deb..31f4d09aa31f 100644
--- a/include/trace/events/kmem.h
+++ b/include/trace/events/kmem.h
@@ -277,7 +277,7 @@ TRACE_EVENT(mm_page_pcpu_drain,
TRACE_EVENT(mm_page_alloc_extfrag,
TP_PROTO(struct page *page,
- int alloc_order, int fallback_order,
+ unsigned int alloc_order, int fallback_order,
int alloc_migratetype, int fallback_migratetype),
TP_ARGS(page,
@@ -286,7 +286,7 @@ TRACE_EVENT(mm_page_alloc_extfrag,
TP_STRUCT__entry(
__field( unsigned long, pfn )
- __field( int, alloc_order )
+ __field( unsigned int, alloc_order )
__field( int, fallback_order )
__field( int, alloc_migratetype )
__field( int, fallback_migratetype )
@@ -303,7 +303,7 @@ TRACE_EVENT(mm_page_alloc_extfrag,
get_pageblock_migratetype(page));
),
- TP_printk("page=%p pfn=%lu alloc_order=%d fallback_order=%d pageblock_order=%d alloc_migratetype=%d fallback_migratetype=%d fragmenting=%d change_ownership=%d",
+ TP_printk("page=%p pfn=%lu alloc_order=%u fallback_order=%d pageblock_order=%d alloc_migratetype=%d fallback_migratetype=%d fragmenting=%d change_ownership=%d",
pfn_to_page(__entry->pfn),
__entry->pfn,
__entry->alloc_order,
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 75c18f4fd66a..1432cbcd87cd 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2631,8 +2631,8 @@ static bool unreserve_highatomic_pageblock(const struct alloc_context *ac,
* condition simpler.
*/
static __always_inline bool
-__rmqueue_fallback(struct zone *zone, int order, int start_migratetype,
- unsigned int alloc_flags)
+__rmqueue_fallback(struct zone *zone, unsigned int order,
+ int start_migratetype, unsigned int alloc_flags)
{
struct free_area *area;
int current_order;
--
2.21.0
next prev parent reply other threads:[~2019-07-25 18:43 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20190725184253.21160-1-lpf.vector@gmail.com>
2019-07-25 18:42 ` [PATCH 01/10] mm/page_alloc: use unsigned int for "order" in should_compact_retry() Pengfei Li
2019-07-25 18:58 ` Matthew Wilcox
2019-07-25 23:21 ` Pengfei Li
2019-07-25 18:42 ` Pengfei Li [this message]
2019-07-26 9:36 ` [PATCH 02/10] mm/page_alloc: use unsigned int for "order" in __rmqueue_fallback() Rasmus Villemoes
2019-07-27 2:34 ` Pengfei Li
2019-07-25 18:42 ` [PATCH 03/10] mm/page_alloc: use unsigned int for "order" in should_compact_retry() Pengfei Li
2019-07-25 18:42 ` [PATCH 04/10] mm/page_alloc: remove never used "order" in alloc_contig_range() Pengfei Li
2019-07-25 18:42 ` [PATCH 05/10] mm/compaction: make "order" and "search_order" unsigned int in struct compact_control Pengfei Li
2019-07-25 18:42 ` [PATCH 06/10] mm/compaction: make "order" unsigned int in compaction.c Pengfei Li
2019-07-25 18:42 ` [PATCH 07/10] trace/events/compaction: make "order" unsigned int Pengfei Li
2019-07-25 18:42 ` [PATCH 08/10] mm/compaction: use unsigned int for "compact_order_failed" in struct zone Pengfei Li
2019-07-25 18:42 ` [PATCH 09/10] mm/compaction: use unsigned int for "kcompactd_max_order" in struct pglist_data Pengfei Li
2019-07-25 18:42 ` [PATCH 10/10] mm/vmscan: use unsigned int for "kswapd_order" " Pengfei Li
2019-07-25 18:52 ` [PATCH 00/10] make "order" unsigned int Qian Cai
2019-07-25 23:48 ` Pengfei Li
[not found] ` <20190726071219.GC6142@dhcp22.suse.cz>
2019-07-27 17:25 ` Pengfei Li
[not found] ` <20190726072637.GC2739@techsingularity.net>
2019-07-27 16:44 ` Pengfei Li
2019-07-29 8:34 ` Mel Gorman
2019-07-30 5:53 ` Pengfei Li
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