ext4: add block plug for .writepages
authorShaohua Li <shaohua.li@intel.com>
Tue, 18 Oct 2011 14:55:51 +0000 (10:55 -0400)
committerTheodore Ts'o <tytso@mit.edu>
Tue, 18 Oct 2011 14:55:51 +0000 (10:55 -0400)
commit1bce63d1a2a2c8929442b79acd4eab2e3db10a0b
tree2dfdd7f28440bca2ba5932c708f541c8a6a21d06
parentf6f96fdb8c2779f9bd8ed7b0b08405b4439c982b
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>
fs/ext4/inode.c