Re: [PATCH v4 3/6] block/genhd.c: apply pm_runtime_set_memalloc_noio on block devices
From: Andrew Morton <akpm@linux-foundation.org>
Date: 2012-11-06 23:24:33
Also in:
linux-mm, linux-pm, lkml
On Sat, 3 Nov 2012 16:35:11 +0800 Ming Lei [off-list ref] wrote:
quoted hunk ↗ jump to hunk
This patch applyes the introduced pm_runtime_set_memalloc_noio on block device so that PM core will teach mm to not allocate memory with GFP_IOFS when calling the runtime_resume and runtime_suspend callback for block devices and its ancestors. ...@@ -532,6 +533,13 @@ static void register_disk(struct gendisk *disk) return; } } + + /* avoid probable deadlock caused by allocating memory with
Again, please fix the comment style. Take a look at the rest of this file!
+ * GFP_KERNEL in runtime_resume callback of its all ancestor + * deivces
typo
+ */
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