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authorTejun Heo <tj@kernel.org>2012-04-16 13:57:23 -0700
committerJens Axboe <axboe@kernel.dk>2012-04-20 10:06:16 +0200
commit54e7ed12bad1e3aa2a28558fab6850240465f973 (patch)
tree907eb0451782f4eb1ad3f9236e51ec4acb7fb941 /block/blk-throttle.c
parentc94bed89995e638e43a6663177358b9d20617361 (diff)
downloadlinux-54e7ed12bad1e3aa2a28558fab6850240465f973.tar.bz2
blkcg: remove blkio_group->path[]
blkio_group->path[] stores the path of the associated cgroup and is used only for debug messages. Just format the path from blkg->cgroup when printing debug messages. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-throttle.c')
-rw-r--r--block/blk-throttle.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/block/blk-throttle.c b/block/blk-throttle.c
index e2aaf27e1f10..e9b7a47f6da0 100644
--- a/block/blk-throttle.c
+++ b/block/blk-throttle.c
@@ -155,9 +155,12 @@ static inline int throtl_tg_##name(const struct throtl_grp *tg) \
THROTL_TG_FNS(on_rr);
-#define throtl_log_tg(td, tg, fmt, args...) \
- blk_add_trace_msg((td)->queue, "throtl %s " fmt, \
- blkg_path(tg_to_blkg(tg)), ##args); \
+#define throtl_log_tg(td, tg, fmt, args...) do { \
+ char __pbuf[128]; \
+ \
+ blkg_path(tg_to_blkg(tg), __pbuf, sizeof(__pbuf)); \
+ blk_add_trace_msg((td)->queue, "throtl %s " fmt, __pbuf, ##args); \
+} while (0)
#define throtl_log(td, fmt, args...) \
blk_add_trace_msg((td)->queue, "throtl " fmt, ##args)