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| author | Sunil Mushran <sunil.mushran@oracle.com> | 2010-10-06 17:55:09 -0700 |
|---|---|---|
| committer | Sunil Mushran <sunil.mushran@oracle.com> | 2010-10-06 17:55:09 -0700 |
| commit | 43695d095dfaf266a8a940d9b07eed7f46076b49 (patch) | |
| tree | ceb5909ed948ee354de9c9c17c573b30159e24db | |
| parent | d6aa1c7c9e4b48081c2302e14b0f857017461efd (diff) | |
| download | linux-43695d095dfaf266a8a940d9b07eed7f46076b49.tar.gz linux-43695d095dfaf266a8a940d9b07eed7f46076b49.tar.bz2 linux-43695d095dfaf266a8a940d9b07eed7f46076b49.zip | |
ocfs2/cluster: Show per region heartbeat elapsed time
This patch adds a per region debugfs file that shows the elapsed time
since the time the o2hb timer was last armed.
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
| -rw-r--r-- | fs/ocfs2/cluster/heartbeat.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c index e8676accf902..29aee2128edb 100644 --- a/fs/ocfs2/cluster/heartbeat.c +++ b/fs/ocfs2/cluster/heartbeat.c @@ -81,6 +81,7 @@ static unsigned long o2hb_failed_region_bitmap[BITS_TO_LONGS(O2NM_MAX_REGIONS)]; #define O2HB_DB_TYPE_FAILEDREGIONS 3 #define O2HB_DB_TYPE_REGION_LIVENODES 4 #define O2HB_DB_TYPE_REGION_NUMBER 5 +#define O2HB_DB_TYPE_REGION_ELAPSED_TIME 6 struct o2hb_debug_buf { int db_type; int db_size; @@ -99,6 +100,7 @@ static struct o2hb_debug_buf *o2hb_db_failedregions; #define O2HB_DEBUG_QUORUMREGIONS "quorum_regions" #define O2HB_DEBUG_FAILEDREGIONS "failed_regions" #define O2HB_DEBUG_REGION_NUMBER "num" +#define O2HB_DEBUG_REGION_ELAPSED_TIME "elapsed_time_in_ms" static struct dentry *o2hb_debug_dir; static struct dentry *o2hb_debug_livenodes; @@ -209,8 +211,10 @@ struct o2hb_region { struct dentry *hr_debug_dir; struct dentry *hr_debug_livenodes; struct dentry *hr_debug_regnum; + struct dentry *hr_debug_elapsed_time; struct o2hb_debug_buf *hr_db_livenodes; struct o2hb_debug_buf *hr_db_regnum; + struct o2hb_debug_buf *hr_db_elapsed_time; /* let the person setting up hb wait for it to return until it * has reached a 'steady' state. This will be fixed when we have @@ -1132,6 +1136,13 @@ static int o2hb_debug_open(struct inode *inode, struct file *file) reg->hr_region_num); goto done; + case O2HB_DB_TYPE_REGION_ELAPSED_TIME: + reg = (struct o2hb_region *)db->db_data; + out += snprintf(buf + out, PAGE_SIZE - out, "%u\n", + jiffies_to_msecs(jiffies - + reg->hr_last_timeout_start)); + goto done; + default: goto done; } @@ -1925,6 +1936,18 @@ static int o2hb_debug_region_init(struct o2hb_region *reg, struct dentry *dir) goto bail; } + reg->hr_debug_elapsed_time = + o2hb_debug_create(O2HB_DEBUG_REGION_ELAPSED_TIME, + reg->hr_debug_dir, + &(reg->hr_db_elapsed_time), + sizeof(*(reg->hr_db_elapsed_time)), + O2HB_DB_TYPE_REGION_ELAPSED_TIME, + 0, 0, reg); + if (!reg->hr_debug_elapsed_time) { + mlog_errno(ret); + goto bail; + } + ret = 0; bail: return ret; |