Hi Ted and the list,
Here are 4 patches for trim support in ext4.
Patch 1/4 is a fix for the 'len' overflow. As we have decided that
we don't adjust start to s_first_data_block, this patch is still needed.
Patch 2/4 is a speedup for trim in one group.
Patch 3/4 adds trace points for the functions used in FITRIM.
Patch 4/4 is a speedup for trim in the whole volume. For more
details, please check the commit log.
Regards,
Tao
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