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o11c
6 days ago
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Copy-on-write performance and debugging
On some Linux filesystems you can do this
if
the chunk to be inserted is a multiple of the block size.
See `FALLOC_FL_COLLAPSE_RANGE` and `FALLOC_FL_INSERT_RANGE` in `fallocate(2)`
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See `FALLOC_FL_COLLAPSE_RANGE` and `FALLOC_FL_INSERT_RANGE` in `fallocate(2)`