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Commit 5cf7bd30 authored by Ilya Dryomov's avatar Ilya Dryomov
Browse files

libceph: expose client options through debugfs 



Add a client_options attribute for showing libceph options.

Signed-off-by: default avatarIlya Dryomov <idryomov@gmail.com>
parent ff40f9ae

include/linux/ceph/libceph.h

+1 −0
Original line number Diff line number Diff line
@@ -135,6 +135,7 @@ struct ceph_client { 
	struct dentry *debugfs_dir;

	struct dentry *debugfs_monmap;

	struct dentry *debugfs_osdmap;

	struct dentry *debugfs_options;

#endif

};

net/ceph/debugfs.c

+24 −0
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ 
 *      .../monmap      - current monmap

 *      .../osdc        - active osd requests

 *      .../monc        - mon client state

 *      .../client_options - libceph-only (i.e. not rbd or cephfs) options

 *      .../dentry_lru  - dump contents of dentry lru

 *      .../caps        - expose cap (reservation) stats

 *      .../bdi         - symlink to ../../bdi/something
@@ -177,10 +178,24 @@ static int osdc_show(struct seq_file *s, void *pp) 
	return 0;

}



static int client_options_show(struct seq_file *s, void *p)

{

	struct ceph_client *client = s->private;

	int ret;



	ret = ceph_print_client_options(s, client);

	if (ret)

		return ret;



	seq_putc(s, '\n');

	return 0;

}



CEPH_DEFINE_SHOW_FUNC(monmap_show)

CEPH_DEFINE_SHOW_FUNC(osdmap_show)

CEPH_DEFINE_SHOW_FUNC(monc_show)

CEPH_DEFINE_SHOW_FUNC(osdc_show)

CEPH_DEFINE_SHOW_FUNC(client_options_show)



int ceph_debugfs_init(void)

{
@@ -242,6 +257,14 @@ int ceph_debugfs_client_init(struct ceph_client *client) 
	if (!client->debugfs_osdmap)

		goto out;



	client->debugfs_options = debugfs_create_file("client_options",

					0600,

					client->debugfs_dir,

					client,

					&client_options_show_fops);

	if (!client->debugfs_options)

		goto out;



	return 0;



out:
@@ -252,6 +275,7 @@ int ceph_debugfs_client_init(struct ceph_client *client) 
void ceph_debugfs_client_cleanup(struct ceph_client *client)

{

	dout("ceph_debugfs_client_cleanup %p\n", client);

	debugfs_remove(client->debugfs_options);

	debugfs_remove(client->debugfs_osdmap);

	debugfs_remove(client->debugfs_monmap);

	debugfs_remove(client->osdc.debugfs_file);