32 lines
1.0 KiB
Diff
32 lines
1.0 KiB
Diff
From f421731c7e1de6608f8fafb551d199ff5f1d6b97 Mon Sep 17 00:00:00 2001
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From: Xiao Ni <xni@redhat.com>
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Date: Wed, 2 Jun 2021 09:17:19 +0800
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Subject: [PATCH 08/15] mdadm/super1: It needs to specify int32 for
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bitmap_offset
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For super1.0 bitmap offset is -16. So it needs to use int type for bitmap offset.
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Fixes: 1fe2e1007310 (mdadm/bitmap: locate bitmap calcuate bitmap position wrongly)
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Signed-off-by: Xiao Ni <xni@redhat.com>
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Signed-off-by: Jes Sorensen <jsorensen@fb.com>
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---
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super1.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/super1.c b/super1.c
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index c05e623..a12a5bc 100644
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--- a/super1.c
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+++ b/super1.c
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@@ -2631,7 +2631,7 @@ static int locate_bitmap1(struct supertype *st, int fd, int node_num)
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else
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ret = -1;
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- offset = __le64_to_cpu(sb->super_offset) + __le32_to_cpu(sb->bitmap_offset);
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+ offset = __le64_to_cpu(sb->super_offset) + (int32_t)__le32_to_cpu(sb->bitmap_offset);
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if (node_num) {
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bms = (bitmap_super_t*)(((char*)sb)+MAX_SB_SIZE);
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bm_sectors_per_node = calc_bitmap_size(bms, 4096) >> 9;
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--
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2.7.5
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