From: Shiyong Li <a22381@motorola.com>
Date: Sat, 9 Dec 2017 01:29:00 +0000 (-0800)
Subject: fs/exfat: link superblock for all the buffer head
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=fe89f9752049cde2503e71a7cda8ac854f902af6;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

fs/exfat: link superblock for all the buffer head

Otherwise, we can get kernel panic when handling fs_error().

Change-Id: I288ece9bdc0182b0d4cf23f1bba920d341a8f540
Signed-off-by: Jaegeuk Kim <jaegeuk@motorola.com>
Signed-off-by: Shiyong Li <a22381@motorola.com>
Reviewed-on: https://gerrit.mot.com/1102177
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Igor Kovalenko <igork@motorola.com>
Submit-Approved: Jira Key
Reviewed-on: https://gerrit.mot.com/1276878
Reviewed-by: Hua Tan <tanhua1@motorola.com>
---

diff --git a/fs/exfat/exfat_super.c b/fs/exfat/exfat_super.c
index 7961d1fe612b..c2f636baffb8 100644
--- a/fs/exfat/exfat_super.c
+++ b/fs/exfat/exfat_super.c
@@ -1593,6 +1593,7 @@ static int exfat_get_block(struct inode *inode, sector_t iblock,
 		map_bh(bh_result, sb, phys);
 	}
 
+	bh_result->b_private = sb;
 	bh_result->b_size = max_blocks << sb->s_blocksize_bits;
 	__unlock_super(sb);