tree 2dfdd7f28440bca2ba5932c708f541c8a6a21d06
parent f6f96fdb8c2779f9bd8ed7b0b08405b4439c982b
author Shaohua Li <shaohua.li@intel.com> 1318949751 -0400
committer Theodore Ts'o <tytso@mit.edu> 1318949751 -0400

ext4: add block plug for .writepages

Add block plug for ext4 .writepages. Though ext4 .writepages
already handles request merge very well, block plug is still
helpful to reduce block lock contention.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>