tree 2319765d78502d13101ac50bafb0ba5577133092
parent 251d6a471c831e22880b3c146bb4556ddfb1dc82
author Wu Fengguang <fengguang.wu@intel.com> 1303583247 -0600
committer Wu Fengguang <fengguang.wu@intel.com> 1307492723 +0800

writeback: trace event writeback_queue_io

Note that it adds a little overheads to account the moved/enqueued
inodes from b_dirty to b_io. The "moved" accounting may be later used to
limit the number of inodes that can be moved in one shot, in order to
keep spinlock hold time under control.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>