ocfs2: Remove mlog(0) from fs/ocfs2/alloc.c

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This is the first try of replacing debug mlog(0,...) to
trace events. Wengang has did some work in his original
patch
http://oss.oracle.com/pipermail/ocfs2-devel/2009-November/005513.html
But he didn't finished it.

So this patch removes all mlog(0,...) from alloc.c and adds
the corresponding trace events. Different mlogs have different
solutions.
1. Some are replaced with trace event directly.
2. Some are replaced and some new parameters are added since
   I think we need to know the btree owner in that case.
3. Some are combined into one trace events.
4. Some redundant mlogs are removed.
What's more, it defines some event classes so that we can use
them later.

Cc: Wengang Wang <wen.gang.wang@oracle.com>
Signed-off-by: Tao Ma <boyu.mt@taobao.com>

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This commit is contained in:

Tao Ma 2011-02-22 08:21:10 +08:00

parent 80a9a84da3

commit a09d09b8f8

2 changed files with 452 additions and 77 deletions

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165

fs/ocfs2/alloc.c

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364

fs/ocfs2/ocfs2_trace.h

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