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mdadm: add support for new lockless bitmap - #209

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hailan94 wants to merge 1 commit into
md-raid-utilities:mainfrom
hailan94:yukuai/llbitmap
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hailan94 wants to merge 1 commit into
md-raid-utilities:mainfrom
hailan94:yukuai/llbitmap

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@hailan94

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A new major number 6 is used for the new bitmap.

Noted that for the kernel that doesn't support lockless bitmap, create such array will fail:

md0: invalid bitmap file superblock: unrecognized superblock version.

@mtkaczyk

mtkaczyk commented Nov 3, 2025

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This should be merged after bitmap is accepted in kernel.

@ncroxon

ncroxon commented Nov 4, 2025

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commit 5ab829f1971dc99f2aac10846c378e67fc875abc md/md-llbitmap: introduce new lockless bitmap

A new major number 6 is used for the new bitmap.

Noted that for the kernel that doesn't support lockless bitmap, create
such array will fail:

md0: invalid bitmap file superblock: unrecognized superblock version.

Signed-off-by: Yu Kuai <yukuai@fnnas.com>
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3 participants