tree 144d53023af5faeb94b9b3aa28e186a33e6c5b98
parent 030ba6bc67b4f2bc5cd174f57785a1745c929abe
author Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> 1223645940 -0400
committer Theodore Ts'o <tytso@mit.edu> 1223645940 -0400

ext4: Add percpu dirty block accounting.

This patch adds dirty block accounting using percpu_counters.  Delayed
allocation block reservation is now done by updating dirty block
counter.  In a later patch we switch to non delalloc mode if the
filesystem free blocks is greater than 150% of total filesystem dirty
blocks

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Mingming Cao<cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>