Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit ff4a80bf authored by Jeff Layton's avatar Jeff Layton Committed by Ilya Dryomov
Browse files

ceph: dump granular cap info in "caps" debugfs file 



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: default avatarJeff Layton <jlayton@kernel.org>
Reviewed-by: default avatar"Yan, Zheng" <zyan@redhat.com>
Signed-off-by: default avatarIlya Dryomov <idryomov@gmail.com>
parent f5d77269

fs/ceph/debugfs.c

+32 −2
Original line number Diff line number Diff line
@@ -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\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;

}