Thank you for the report.
Interesting to me as well.
Maybe, I suspect f2fs_submit_merged_bio(sbi, DATA, WRITE); in
f2fs_write_data_pages was called too many from multiple threads
at the same time, which results in bio splits.
Not sure, so, at this moment, I'll revert this patch. Once finishing
an
FYI, we found changes on `fsmark.files_per_sec' by
78373b7319abdf15050af5b1632c4c8b8b398f33:
> commit 78373b7319abdf15050af5b1632c4c8b8b398f33
> Author: Jaegeuk Kim
> AuthorDate: Fri Mar 13 21:44:36 2015 -0700
> Commit: Jaegeuk Kim
> CommitDate: Fri Apr 10 15:08:45 2
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