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-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 d95615fc6da5..2346a1db8561 100644
--- a/include/linux/blktrace_api.h
+++ b/include/linux/blktrace_api.h
@@ -19,6 +19,7 @@ enum blktrace_cat {
BLK_TC_FS = 1 << 8, /* fs requests */
BLK_TC_PC = 1 << 9, /* pc requests */
BLK_TC_NOTIFY = 1 << 10, /* special message */
+ BLK_TC_AHEAD = 1 << 11, /* readahead */
BLK_TC_END = 1 << 15, /* only 16-bits, reminder */
};