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48 lines
1.5 KiB
Diff
48 lines
1.5 KiB
Diff
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From b3e643e488c0bd5f7f4797f43e7d765bf7c0a2f9 Mon Sep 17 00:00:00 2001
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From: Samuel Dionne-Riel <samuel@dionne-riel.com>
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Date: Sat, 23 Nov 2019 17:25:09 -0500
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Subject: [PATCH] [LEDE] We need to set EXT4_BG_INODE_ZEROED on at least Block
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Group 0.
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This bit says whether the inode table has been explicitly zeroed
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or not. ext4 in the kernel now insists that this bit be set on
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block group 0 at least.
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Since we are creating the filesystem as a flat sparse file, by
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definition, the inode tables are zeroed on creation.
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* * *
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Provenance information, for Mobile NixOS:
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This patch comes from the OpenWRT forum.
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* https://forum.openwrt.org/t/read-only-file-system-after-a-fresh-installation-of-lede-17-01-5/17242/8
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The patch should come from:
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* `tools/make-ext4fs/patches/200-set-EXT4_BG_INODE_ZEROED.patch`
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Though, it seems it never has gone through to LEDE, neither into
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OpenWRT's make_ext4fs project...
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---
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allocate.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/allocate.c b/allocate.c
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index cca3dc1..80fcaa5 100644
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--- a/allocate.c
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+++ b/allocate.c
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@@ -307,7 +307,7 @@ static void init_bg(struct block_group_info *bg, unsigned int i)
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bg->first_free_block = 0;
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bg->free_inodes = info.inodes_per_group;
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bg->first_free_inode = 1;
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- bg->flags = EXT4_BG_INODE_UNINIT;
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+ bg->flags = EXT4_BG_INODE_UNINIT|EXT4_BG_INODE_ZEROED;
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if (reserve_blocks(bg, bg->first_free_block, bg->header_blocks) < 0)
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error("failed to reserve %u blocks in block group %u\n", bg->header_blocks, i);
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--
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2.23.0
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