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Revert "brd: remove unused brd_mutex"
author
Seung-Woo Kim
<sw0312.kim@samsung.com>
Fri, 31 Jul 2020 06:38:14 +0000
(15:38 +0900)
committer
Hoegeun Kwon
<hoegeun.kwon@samsung.com>
Mon, 7 Feb 2022 07:13:00 +0000
(16:13 +0900)
This reverts commit
15f7b41f70ddcca3b555bd0fdc7c8da7466b517e
.
To support brd flush to free ramdisk brd_mutex is required.
Change-Id: Ide75bcb73812c3c7e04bfe6ebaed0d6d511e01dd
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
drivers/block/brd.c
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diff --git
a/drivers/block/brd.c
b/drivers/block/brd.c
index
cc49a92
..
ba59fcf
100644
(file)
--- a/
drivers/block/brd.c
+++ b/
drivers/block/brd.c
@@
-53,6
+53,7
@@
struct brd_device {
/*
* Look up and return a brd's page for a given sector.
*/
+static DEFINE_MUTEX(brd_mutex);
static struct page *brd_lookup_page(struct brd_device *brd, sector_t sector)
{
pgoff_t idx;