Commit-ID: e4955c9986a27bb47ddeb6cd55803053f547e2e9
Gitweb: http://git.kernel.org/tip/e4955c9986a27bb47ddeb6cd55803053f547e2e9
Author: Li Zefan <lizf@xxxxxxxxxxxxxx>
AuthorDate: Tue, 24 Mar 2009 16:04:37 +0800
Committer: Ingo Molnar <mingo@xxxxxxx>
CommitDate: Tue, 24 Mar 2009 13:08:59 +0100
blktrace: mark ddir_act[] const
Impact: cleanup
ddir_act and what2act always stay immutable.
Signed-off-by: Li Zefan <lizf@xxxxxxxxxxxxxx>
Acked-by: Jens Axboe <jens.axboe@xxxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
LKML-Reference: <49C89415.5080503@xxxxxxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
kernel/trace/blktrace.c | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index 108f4f7..1ffcbd4 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -147,8 +147,8 @@ static int act_log_check(struct blk_trace *bt, u32 what, sector_t sector,
/*
* Data direction bit lookup
*/
-static u32 ddir_act[2] __read_mostly = { BLK_TC_ACT(BLK_TC_READ),
- BLK_TC_ACT(BLK_TC_WRITE) };
+static const u32 ddir_act[2] = { BLK_TC_ACT(BLK_TC_READ),
+ BLK_TC_ACT(BLK_TC_WRITE) };
/* The ilog2() calls fall out because they're constant */
#define MASK_TC_BIT(rw, __name) ((rw & (1 << BIO_RW_ ## __name)) << \
@@ -1116,10 +1116,10 @@ static void blk_tracer_reset(struct trace_array *tr)
blk_tracer_stop(tr);
}
-static struct {
+static const struct {
const char *act[2];
int (*print)(struct trace_seq *s, const struct trace_entry *ent);
-} what2act[] __read_mostly = {
+} what2act[] = {
[__BLK_TA_QUEUE] = {{ "Q", "queue" }, blk_log_generic },
[__BLK_TA_BACKMERGE] = {{ "M", "backmerge" }, blk_log_generic },
[__BLK_TA_FRONTMERGE] = {{ "F", "frontmerge" }, blk_log_generic },
--
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