tree f0d1902b7ff4294114614cc706855c3d6b131f73
parent 1de3e3df917459422cb2aecac440febc8879d410
author Theodore Ts'o <tytso@mit.edu> 1288229410 -0400
committer Theodore Ts'o <tytso@mit.edu> 1288229410 -0400

ext4: use bio layer instead of buffer layer in mpage_da_submit_io

Call the block I/O layer directly instad of going through the buffer
layer.  This should give us much better performance and scalability,
as well as lowering our CPU utilization when doing buffered writeback.

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