Commit cb0586bd authored by Sunil Mushran's avatar Sunil Mushran Committed by Joel Becker
Browse files

ocfs2/cluster: Show pin state for each o2hb region



This patch adds a per o2hb region debugfs file that shows whether that region
is pinned or not.
Signed-off-by: default avatarSunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: default avatarJoel Becker <joel.becker@oracle.com>
parent 58a3158a
......@@ -82,6 +82,7 @@ static unsigned long o2hb_failed_region_bitmap[BITS_TO_LONGS(O2NM_MAX_REGIONS)];
#define O2HB_DB_TYPE_REGION_LIVENODES 4
#define O2HB_DB_TYPE_REGION_NUMBER 5
#define O2HB_DB_TYPE_REGION_ELAPSED_TIME 6
#define O2HB_DB_TYPE_REGION_PINNED 7
struct o2hb_debug_buf {
int db_type;
int db_size;
......@@ -101,6 +102,7 @@ static struct o2hb_debug_buf *o2hb_db_failedregions;
#define O2HB_DEBUG_FAILEDREGIONS "failed_regions"
#define O2HB_DEBUG_REGION_NUMBER "num"
#define O2HB_DEBUG_REGION_ELAPSED_TIME "elapsed_time_in_ms"
#define O2HB_DEBUG_REGION_PINNED "pinned"
static struct dentry *o2hb_debug_dir;
static struct dentry *o2hb_debug_livenodes;
......@@ -241,9 +243,11 @@ struct o2hb_region {
struct dentry *hr_debug_livenodes;
struct dentry *hr_debug_regnum;
struct dentry *hr_debug_elapsed_time;
struct dentry *hr_debug_pinned;
struct o2hb_debug_buf *hr_db_livenodes;
struct o2hb_debug_buf *hr_db_regnum;
struct o2hb_debug_buf *hr_db_elapsed_time;
struct o2hb_debug_buf *hr_db_pinned;
/* 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
......@@ -1180,6 +1184,12 @@ static int o2hb_debug_open(struct inode *inode, struct file *file)
reg->hr_last_timeout_start));
goto done;
case O2HB_DB_TYPE_REGION_PINNED:
reg = (struct o2hb_region *)db->db_data;
out += snprintf(buf + out, PAGE_SIZE - out, "%u\n",
!!reg->hr_item_pinned);
goto done;
default:
goto done;
}
......@@ -1424,6 +1434,7 @@ static void o2hb_region_release(struct config_item *item)
debugfs_remove(reg->hr_debug_livenodes);
debugfs_remove(reg->hr_debug_regnum);
debugfs_remove(reg->hr_debug_elapsed_time);
debugfs_remove(reg->hr_debug_pinned);
debugfs_remove(reg->hr_debug_dir);
spin_lock(&o2hb_live_lock);
......@@ -1988,6 +1999,18 @@ static int o2hb_debug_region_init(struct o2hb_region *reg, struct dentry *dir)
goto bail;
}
reg->hr_debug_pinned =
o2hb_debug_create(O2HB_DEBUG_REGION_PINNED,
reg->hr_debug_dir,
&(reg->hr_db_pinned),
sizeof(*(reg->hr_db_pinned)),
O2HB_DB_TYPE_REGION_PINNED,
0, 0, reg);
if (!reg->hr_debug_pinned) {
mlog_errno(ret);
goto bail;
}
ret = 0;
bail:
return ret;
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment