diff options
| 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/cfq-iosched.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/cfq-iosched.c')
| -rw-r--r-- | block/cfq-iosched.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index eb07eb64e85b..901286b5f5cb 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -573,14 +573,21 @@ static inline void cfqg_put(struct cfq_group *cfqg) return blkg_put(cfqg_to_blkg(cfqg)); } -#define cfq_log_cfqq(cfqd, cfqq, fmt, args...) \ +#define cfq_log_cfqq(cfqd, cfqq, fmt, args...) do { \ + char __pbuf[128]; \ + \ + blkg_path(cfqg_to_blkg((cfqq)->cfqg), __pbuf, sizeof(__pbuf)); \ blk_add_trace_msg((cfqd)->queue, "cfq%d%c %s " fmt, (cfqq)->pid, \ - cfq_cfqq_sync((cfqq)) ? 'S' : 'A', \ - blkg_path(cfqg_to_blkg((cfqq)->cfqg)), ##args) - -#define cfq_log_cfqg(cfqd, cfqg, fmt, args...) \ - blk_add_trace_msg((cfqd)->queue, "%s " fmt, \ - blkg_path(cfqg_to_blkg((cfqg))), ##args) \ + cfq_cfqq_sync((cfqq)) ? 'S' : 'A', \ + __pbuf, ##args); \ +} while (0) + +#define cfq_log_cfqg(cfqd, cfqg, fmt, args...) do { \ + char __pbuf[128]; \ + \ + blkg_path(cfqg_to_blkg(cfqg), __pbuf, sizeof(__pbuf)); \ + blk_add_trace_msg((cfqd)->queue, "%s " fmt, __pbuf, ##args); \ +} while (0) static inline void cfqg_stats_update_io_add(struct cfq_group *cfqg, struct cfq_group *curr_cfqg, int rw) |