From: Wu Fengguang <fengguang.wu@intel.com>
Date: Tue, 7 Dec 2010 04:34:29 +0000 (-0600)
Subject: writeback: trace global_dirty_state
X-Git-Tag: v3.1-rc1~228^2~3
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e1cbe236013c82bcf9a156e98d7b47efb89d2674;p=pandora-kernel.git

writeback: trace global_dirty_state

Add trace event balance_dirty_state for showing the global dirty page
counts and thresholds at each global_dirty_limits() invocation.  This
will cover the callers throttle_vm_writeout(), over_bground_thresh()
and each balance_dirty_pages() loop.

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