We have a "caps" file already that gives statistics on the caps
cache as a whole. Add another section to that output and dump a
line for each individual cap record.
Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>
---
fs/ceph/debugfs.c | 34 ++++++++++++++++++++++++++++++++--
1 file changed, 32 insertions(+), 2 deletions(-)
diff --git a/fs/ceph/debugfs.c b/fs/ceph/debugfs.c
index 98365e74cb4a..e6a19efb7c42 100644
--- a/fs/ceph/debugfs.c
+++ b/fs/ceph/debugfs.c
@@ -124,18 +124,48 @@ static int mdsc_show(struct seq_file *s, void *p)
return 0;
}
+static int caps_show_cb(struct inode *inode, struct ceph_cap *cap, void *p)
+{
+ struct seq_file *s = p;
+
+ seq_printf(s, "0x%-17lx%-17s%-17s\n", inode->i_ino,
+ ceph_cap_string(cap->issued),
+ ceph_cap_string(cap->implemented));
+ return 0;
+}
+
static int caps_show(struct seq_file *s, void *p)
{
struct ceph_fs_client *fsc = s->private;
- int total, avail, used, reserved, min;
+ struct ceph_mds_client *mdsc = fsc->mdsc;
+ int total, avail, used, reserved, min, i;
ceph_reservation_status(fsc, &total, &avail, &used, &reserved, &min);
seq_printf(s, "total\t\t%d\n"
"avail\t\t%d\n"
"used\t\t%d\n"
"reserved\t%d\n"
- "min\t%d\n",
+ "min\t%d\n\n",
total, avail, used, reserved, min);
+ seq_printf(s, "ino issued implemented\n");
+ seq_printf(s, "-----------------------------------------------\n");
+
+ mutex_lock(&mdsc->mutex);
+ for (i = 0; i < mdsc->max_sessions; i++) {
+ struct ceph_mds_session *session;
+
+ session = __ceph_lookup_mds_session(mdsc, i);
+ if (!session)
+ continue;
+ mutex_unlock(&mdsc->mutex);
+ mutex_lock(&session->s_mutex);
+ ceph_iterate_session_caps(session, caps_show_cb, s);
+ mutex_unlock(&session->s_mutex);
+ ceph_put_mds_session(session);
+ mutex_lock(&mdsc->mutex);
+ }
+ mutex_unlock(&mdsc->mutex);
+
return 0;
}
--
2.20.1
