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authorAlan D. Brunelle <Alan.Brunelle@hp.com>2008-06-11 09:12:52 +0200
committerJens Axboe <jens.axboe@oracle.com>2008-07-03 13:21:12 +0200
commit02c62304e6af60f1963695c6bc1bbffe619aa585 (patch)
tree6668092ab6514981926f30ec7f9bab262bfd281b /include/linux/blktrace_api.h
parent7b679138b3237a9a3d45a4fda23a58ac79cd279c (diff)
downloadblackbird-op-linux-02c62304e6af60f1963695c6bc1bbffe619aa585.tar.gz
blackbird-op-linux-02c62304e6af60f1963695c6bc1bbffe619aa585.zip
Added in user-injected messages into blk traces
This allows a user to annotate the blk trace stream: writing a suitable message to {/sys/kernel/debug}/block/<dsf>/msg will have it propagated into the trace stream. Signed-off-by: Alan D. Brunelle <alan.brunelle@hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'include/linux/blktrace_api.h')
-rw-r--r--include/linux/blktrace_api.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h
index e3ef903aae88..d084b8d227a5 100644
--- a/include/linux/blktrace_api.h
+++ b/include/linux/blktrace_api.h
@@ -129,6 +129,7 @@ struct blk_trace {
u32 dev;
struct dentry *dir;
struct dentry *dropped_file;
+ struct dentry *msg_file;
atomic_t dropped;
};
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