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ext4: mark all metadata I/O with REQ_META
authorTheodore Ts'o <tytso@mit.edu>
Sat, 20 Apr 2013 19:46:17 +0000 (15:46 -0400)
committerTheodore Ts'o <tytso@mit.edu>
Sat, 20 Apr 2013 19:46:17 +0000 (15:46 -0400)
As Dave Chinner pointed out at the 2013 LSF/MM workshop, it's
important that metadata I/O requests are marked as such to avoid
priority inversions caused by I/O bandwidth throttling.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

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