From: "Uladzislau Rezki (Sony)" <urezki@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm@kvack.org, LKML <linux-kernel@vger.kernel.org>,
Mel Gorman <mgorman@suse.de>,
Matthew Wilcox <willy@infradead.org>,
Nicholas Piggin <npiggin@gmail.com>,
Uladzislau Rezki <urezki@gmail.com>,
Hillf Danton <hdanton@sina.com>, Michal Hocko <mhocko@suse.com>,
Oleksiy Avramchenko <oleksiy.avramchenko@sonymobile.com>,
Steven Rostedt <rostedt@goodmis.org>
Subject: [PATCH 0/3] vmalloc() vs bulk allocator v2
Date: Sun, 16 May 2021 22:20:53 +0200 [thread overview]
Message-ID: <20210516202056.2120-1-urezki@gmail.com> (raw)
Hi.
There are three patches in this small series. This is a second iteration.
First one was buggy and leaded to kernel panic due to passing NUMA_NO_NODE
as "nid" to the bulk allocator(it assumes to have a valid node).
Therefore the patch number [1] adds an extra helper that guarantees a correct
numa node ID if it is not specified. Basically saying when it is invoked with
NUMA_NO_NODE.
A patch [2] has been slightly updated, the change-log is below.
V1 -> V2:
- Switch to the alloc_pages_bulk_array_node() helper so the NUMA_NO_NODE
is correctly handled(similar to alloc_pages_node() API func).
- Use "while()" loop instead of "for()" for high-order pages and increase
number of allocated pages after actual alloc.
Uladzislau Rezki (Sony) (3):
[1] mm/page_alloc: Add an alloc_pages_bulk_array_node() helper
[2] mm/vmalloc: Switch to bulk allocator in __vmalloc_area_node()
[3] mm/vmalloc: Print a warning message first on failure
include/linux/gfp.h | 9 ++++++
mm/vmalloc.c | 78 +++++++++++++++++++++++++--------------------
2 files changed, 52 insertions(+), 35 deletions(-)
--
2.20.1
next reply other threads:[~2021-05-16 20:21 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-16 20:20 Uladzislau Rezki (Sony) [this message]
2021-05-16 20:20 ` [PATCH 1/3] mm/page_alloc: Add an alloc_pages_bulk_array_node() helper Uladzislau Rezki (Sony)
2021-05-16 20:20 ` [PATCH 2/3] mm/vmalloc: Switch to bulk allocator in __vmalloc_area_node() Uladzislau Rezki (Sony)
2021-05-17 8:24 ` Mel Gorman
2021-05-17 11:51 ` Uladzislau Rezki
2021-05-19 13:44 ` Christoph Hellwig
2021-05-19 14:39 ` Uladzislau Rezki
2021-05-19 15:56 ` Mel Gorman
2021-05-19 19:52 ` Uladzislau Rezki
2021-05-19 21:07 ` Uladzislau Rezki
2021-06-28 23:00 ` Andrew Morton
2021-05-16 20:20 ` [PATCH 3/3] mm/vmalloc: Print a warning message first on failure Uladzislau Rezki (Sony)
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