mirror of
https://github.com/brain-hackers/u-boot-brain
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4aebb99486
This patch uses generic code from btrfs-progs to read one super block from block device. To support the btrfs-progs coding style, the following is also crossported: - BTRFS_SETGET_FUNC for btrfs_super_block - btrfs_check_super() function - Move btrfs_read_superblock() to disk-io.[ch] Since super.c only contains pretty small amount of code, and the extra check will be covered in later root read patches. Differences between this implementation and btrfs-progs: - No sbflags/sb_bytenr support Since we only need to read the primary super block (like kernel), sbflags/sb_bytenr used by super block recovery is not needed. This also changes the following behavior of U-Boot btrfs: - Only reads the primary super block The old implementation reads all 3 super blocks, and also one non-existing backup. This is not correct, especially if there is another filesystem created on the device but old superblocks are not rewritten. Just like kernel, we only check the primary super block. Signed-off-by: Qu Wenruo <wqu@suse.com> Reviewed-by: Marek Behún <marek.behun@nic.cz> [trini: Change error to be a define in compat.h] Signed-off-by: Tom Rini <trini@konsulko.com>
7 lines
220 B
Makefile
7 lines
220 B
Makefile
# SPDX-License-Identifier: GPL-2.0+
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#
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# 2017 Marek Behun, CZ.NIC, marek.behun@nic.cz
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obj-y := btrfs.o chunk-map.o compression.o ctree.o dev.o dir-item.o \
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extent-io.o inode.o root.o subvolume.o crypto/hash.o disk-io.o
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