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>,
Christoph Hellwig <hch@infradead.org>,
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 v3 2/2] mm/vmalloc: Remove gfpflags_allow_blocking() check
Date: Wed, 7 Jul 2021 20:26:39 +0200 [thread overview]
Message-ID: <20210707182639.31282-2-urezki@gmail.com> (raw)
In-Reply-To: <20210707182639.31282-1-urezki@gmail.com>
Get rid of gfpflags_allow_blocking() check from the vmalloc() path
as it is supposed to be sleepable anyway. Thus remove it from the
alloc_vmap_area() as well as from the vm_area_alloc_pages().
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
---
mm/vmalloc.c | 18 ++++++++----------
1 file changed, 8 insertions(+), 10 deletions(-)
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index a9a6d28c8baa..24a3955d5a36 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1479,6 +1479,7 @@ static struct vmap_area *alloc_vmap_area(unsigned long size,
int node, gfp_t gfp_mask)
{
struct vmap_area *va;
+ unsigned long freed;
unsigned long addr;
int purged = 0;
int ret;
@@ -1542,13 +1543,12 @@ static struct vmap_area *alloc_vmap_area(unsigned long size,
goto retry;
}
- if (gfpflags_allow_blocking(gfp_mask)) {
- unsigned long freed = 0;
- blocking_notifier_call_chain(&vmap_notify_list, 0, &freed);
- if (freed > 0) {
- purged = 0;
- goto retry;
- }
+ freed = 0;
+ blocking_notifier_call_chain(&vmap_notify_list, 0, &freed);
+
+ if (freed > 0) {
+ purged = 0;
+ goto retry;
}
if (!(gfp_mask & __GFP_NOWARN) && printk_ratelimit())
@@ -2834,9 +2834,7 @@ vm_area_alloc_pages(gfp_t gfp, int nid,
for (i = 0; i < (1U << order); i++)
pages[nr_allocated + i] = page + i;
- if (gfpflags_allow_blocking(gfp))
- cond_resched();
-
+ cond_resched();
nr_allocated += 1U << order;
}
--
2.20.1
prev parent reply other threads:[~2021-07-07 18:27 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-07 18:26 [PATCH v3 1/2] mm/vmalloc: Use batched page requests in bulk-allocator Uladzislau Rezki (Sony)
2021-07-07 18:26 ` Uladzislau Rezki (Sony) [this message]
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