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9678c54388
The custom crc32 init code was introduced in14a958e678("Btrfs: fix btrfs boot when compiled as built-in") to enable using btrfs as a built-in. However, later as pointed out by60efa5eb2e("Btrfs: use late_initcall instead of module_init") this wasn't enough and finally btrfs was switched to late_initcall which comes after the generic crc32c implementation is initiliased. The latter commit superseeded the former. Now that we don't have to maintain our own code let's just remove it and switch to using the generic implementation. Despite touching a lot of files the patch is really simple. Here is the gist of the changes: 1. Select LIBCRC32C rather than the low-level modules. 2. s/btrfs_crc32c/crc32c/g 3. replace hash.h with linux/crc32c.h 4. Move the btrfs namehash funcs to ctree.h and change the tree accordingly. I've tested this with btrfs being both a module and a built-in and xfstest doesn't complain. Does seem to fix the longstanding problem of not automatically selectiong the crc32c module when btrfs is used. Possibly there is a workaround in dracut. The modinfo confirms that now all the module dependencies are there: before: depends: zstd_compress,zstd_decompress,raid6_pq,xor,zlib_deflate after: depends: libcrc32c,zstd_compress,zstd_decompress,raid6_pq,xor,zlib_deflate Signed-off-by: Nikolay Borisov <nborisov@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> [ add more info to changelog from mails ] Signed-off-by: David Sterba <dsterba@suse.com>
23 lines
1.0 KiB
Makefile
23 lines
1.0 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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obj-$(CONFIG_BTRFS_FS) := btrfs.o
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btrfs-y += super.o ctree.o extent-tree.o print-tree.o root-tree.o dir-item.o \
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file-item.o inode-item.o inode-map.o disk-io.o \
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transaction.o inode.o file.o tree-defrag.o \
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extent_map.o sysfs.o struct-funcs.o xattr.o ordered-data.o \
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extent_io.o volumes.o async-thread.o ioctl.o locking.o orphan.o \
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export.o tree-log.o free-space-cache.o zlib.o lzo.o zstd.o \
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compression.o delayed-ref.o relocation.o delayed-inode.o scrub.o \
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reada.o backref.o ulist.o qgroup.o send.o dev-replace.o raid56.o \
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uuid-tree.o props.o free-space-tree.o tree-checker.o
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btrfs-$(CONFIG_BTRFS_FS_POSIX_ACL) += acl.o
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btrfs-$(CONFIG_BTRFS_FS_CHECK_INTEGRITY) += check-integrity.o
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btrfs-$(CONFIG_BTRFS_FS_REF_VERIFY) += ref-verify.o
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btrfs-$(CONFIG_BTRFS_FS_RUN_SANITY_TESTS) += tests/free-space-tests.o \
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tests/extent-buffer-tests.o tests/btrfs-tests.o \
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tests/extent-io-tests.o tests/inode-tests.o tests/qgroup-tests.o \
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tests/free-space-tree-tests.o tests/extent-map-tests.o
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