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| author | Tejun Heo <tj@kernel.org> | 2012-04-16 13:57:23 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2012-04-20 10:06:16 +0200 |
| commit | 54e7ed12bad1e3aa2a28558fab6850240465f973 (patch) | |
| tree | 907eb0451782f4eb1ad3f9236e51ec4acb7fb941 /block/blk-throttle.c | |
| parent | c94bed89995e638e43a6663177358b9d20617361 (diff) | |
| download | lwn-54e7ed12bad1e3aa2a28558fab6850240465f973.tar.gz lwn-54e7ed12bad1e3aa2a28558fab6850240465f973.zip | |
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.c | 9 |
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) |