From: Jiaying Zhang <jiayingz@google.com>
Date: Tue, 22 Mar 2011 01:38:05 +0000 (-0400)
Subject: ext4: add more tracepoints and use dev_t in the trace buffer
X-Git-Tag: v2.6.39-rc1~73^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0562e0bad483d10e9651fbb8f21dc3d0bad57374;p=pandora-kernel.git

ext4: add more tracepoints and use dev_t in the trace buffer

- Add more ext4 tracepoints.
- Change ext4 tracepoints to use dev_t field with MAJOR/MINOR macros
so that we can save 4 bytes in the ring buffer on some platforms.
- Add sync_mode to ext4_da_writepages, ext4_da_write_pages, and
ext4_da_writepages_result tracepoints. Also remove for_reclaim
field from ext4_da_writepages since it is usually not very useful.

Signed-off-by: Jiaying Zhang <jiayingz@google.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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