lkml.org 
[lkml]   [2009]   [Jul]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 19/20] ceph: debugfs
Date
Basic state information is available via /debug/ceph, including
instances of the client, fsids, current monitor, mds and osd maps,
outstanding server requests, and hooks to adjust debug levels.

Signed-off-by: Sage Weil <sage@newdream.net>
---
fs/ceph/debugfs.c | 604 +++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 604 insertions(+), 0 deletions(-)
create mode 100644 fs/ceph/debugfs.c
diff --git a/fs/ceph/debugfs.c b/fs/ceph/debugfs.c
new file mode 100644
index 0000000..bf399e7
--- /dev/null
+++ b/fs/ceph/debugfs.c
@@ -0,0 +1,604 @@
+#include <linux/module.h>
+#include <linux/ctype.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+
+#include "super.h"
+#include "mds_client.h"
+
+static struct dentry *ceph_debugfs_dir;
+static struct dentry *ceph_debugfs_debug;
+static struct dentry *ceph_debugfs_debug_msgr;
+static struct dentry *ceph_debugfs_debug_console;
+static struct dentry *ceph_debugfs_debug_mask;
+static struct dentry *ceph_debugfs_caps_reservation;
+
+/*
+ * ceph_debug_mask
+ */
+struct _debug_mask_name {
+ int mask;
+ char *name;
+};
+
+static struct _debug_mask_name _debug_mask_names[] = {
+ {DOUT_MASK_ADDR, "addr"},
+ {DOUT_MASK_CAPS, "caps"},
+ {DOUT_MASK_DIR, "dir"},
+ {DOUT_MASK_EXPORT, "export"},
+ {DOUT_MASK_FILE, "file"},
+ {DOUT_MASK_INODE, "inode"},
+ {DOUT_MASK_IOCTL, "ioctl"},
+ {DOUT_MASK_MDSC, "mdsc"},
+ {DOUT_MASK_MDSMAP, "mdsmap"},
+ {DOUT_MASK_MSGR, "msgr"},
+ {DOUT_MASK_MON, "mon"},
+ {DOUT_MASK_OSDC, "osdc"},
+ {DOUT_MASK_OSDMAP, "osdmap"},
+ {DOUT_MASK_SNAP, "snap"},
+ {DOUT_MASK_SUPER, "super"},
+ {DOUT_MASK_PROTOCOL, "protocol"},
+ {DOUT_MASK_PROC, "proc"},
+ {DOUT_MASK_TOOLS, "tools"},
+ {0, NULL}
+};
+
+static int debug_mask_show(struct seq_file *s, void *p)
+{
+ int i = 0;
+ seq_printf(s, "0x%x", ceph_debug_mask);
+
+ while (_debug_mask_names[i].mask) {
+ if (ceph_debug_mask & _debug_mask_names[i].mask)
+ seq_printf(s, " %s",
+ _debug_mask_names[i].name);
+ i++;
+ }
+ seq_printf(s, "\n");
+ return 0;
+}
+
+static int get_debug_mask(const char *name, int len)
+{
+ int i = 0;
+
+ while (_debug_mask_names[i].name) {
+ if (strncmp(_debug_mask_names[i].name, name, len) == 0)
+ return _debug_mask_names[i].mask;
+ i++;
+ }
+ return 0;
+}
+
+static ssize_t debug_mask_store(struct file *file, const char __user *buffer,
+ size_t count, loff_t *data)
+{
+ char *next, *tok;
+ char *buf;
+
+ if (count > PAGE_SIZE)
+ return -EINVAL;
+
+ buf = kmalloc(count + 1, GFP_KERNEL);
+
+ if (copy_from_user(buf, buffer, count))
+ return -EFAULT;
+
+ buf[count] = '\0';
+
+ next = buf;
+
+ while (1) {
+ tok = next;
+ next = strpbrk(tok, " \t\r\n");
+ if (!next)
+ break;
+ if (isdigit(*tok)) {
+ ceph_debug_mask = simple_strtol(tok, NULL, 0);
+ } else {
+ int remove = 0;
+ int mask;
+
+ if (*tok == '-') {
+ remove = 1;
+ tok++;
+ } else if (*tok == '+')
+ tok++;
+ mask = get_debug_mask(tok, next-tok);
+ if (mask) {
+ if (remove)
+ ceph_debug_mask &= ~mask;
+ else
+ ceph_debug_mask |= mask;
+ }
+ }
+ next++;
+ }
+
+ kfree(buf);
+
+ return count;
+}
+
+static int debug_mask_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, debug_mask_show, NULL);
+}
+
+static const struct file_operations ceph_debug_mask_fops = {
+ .open = debug_mask_open,
+ .read = seq_read,
+ .write = debug_mask_store,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int fsid_show(struct seq_file *s, void *p)
+{
+ struct ceph_client *client = s->private;
+
+ seq_printf(s, "%llx.%llx\n",
+ le64_to_cpu(__ceph_fsid_major(&client->monc.monmap->fsid)),
+ le64_to_cpu(__ceph_fsid_minor(&client->monc.monmap->fsid)));
+ return 0;
+}
+
+static int monmap_show(struct seq_file *s, void *p)
+{
+ int i;
+ struct ceph_client *client = s->private;
+
+ if (client->monc.monmap == NULL)
+ return 0;
+
+ seq_printf(s, "epoch %d\n", client->monc.monmap->epoch);
+ for (i = 0; i < client->monc.monmap->num_mon; i++) {
+ struct ceph_entity_inst *inst =
+ &client->monc.monmap->mon_inst[i];
+
+ seq_printf(s, "\t%s%d\t%u.%u.%u.%u:%u\n",
+ ENTITY_NAME(inst->name),
+ IPQUADPORT(inst->addr.ipaddr));
+ }
+ return 0;
+}
+
+static int mdsmap_show(struct seq_file *s, void *p)
+{
+ int i;
+ struct ceph_client *client = s->private;
+
+ if (client->mdsc.mdsmap == NULL)
+ return 0;
+ seq_printf(s, "epoch %d\n", client->mdsc.mdsmap->m_epoch);
+ seq_printf(s, "root %d\n", client->mdsc.mdsmap->m_root);
+ seq_printf(s, "session_timeout %d\n",
+ client->mdsc.mdsmap->m_session_timeout);
+ seq_printf(s, "session_autoclose %d\n",
+ client->mdsc.mdsmap->m_session_autoclose);
+ for (i = 0; i < client->mdsc.mdsmap->m_max_mds; i++) {
+ struct ceph_entity_addr *addr = &client->mdsc.mdsmap->m_addr[i];
+ int state = client->mdsc.mdsmap->m_state[i];
+
+ seq_printf(s, "\tmds%d\t%u.%u.%u.%u:%u\t(%s)\n",
+ i,
+ IPQUADPORT(addr->ipaddr),
+ ceph_mds_state_name(state));
+ }
+ return 0;
+}
+
+static int osdmap_show(struct seq_file *s, void *p)
+{
+ int i;
+ struct ceph_client *client = s->private;
+
+ if (client->osdc.osdmap == NULL)
+ return 0;
+ seq_printf(s, "epoch %d\n", client->osdc.osdmap->epoch);
+ seq_printf(s, "flags%s%s\n",
+ (client->osdc.osdmap->flags & CEPH_OSDMAP_NEARFULL) ?
+ " NEARFULL" : "",
+ (client->osdc.osdmap->flags & CEPH_OSDMAP_FULL) ?
+ " FULL" : "");
+ for (i = 0; i < client->osdc.osdmap->num_pools; i++) {
+ struct ceph_pg_pool_info *pool =
+ &client->osdc.osdmap->pg_pool[i];
+ seq_printf(s, "pg_pool %d pg_num %d / %d, lpg_num %d / %d\n",
+ i, pool->v.pg_num, pool->pg_num_mask,
+ pool->v.lpg_num, pool->lpg_num_mask);
+ }
+ for (i = 0; i < client->osdc.osdmap->max_osd; i++) {
+ struct ceph_entity_addr *addr =
+ &client->osdc.osdmap->osd_addr[i];
+ int state = client->osdc.osdmap->osd_state[i];
+ char sb[64];
+
+ seq_printf(s,
+ "\tosd%d\t%u.%u.%u.%u:%u\t%3d%%\t(%s)\n",
+ i, IPQUADPORT(addr->ipaddr),
+ ((client->osdc.osdmap->osd_weight[i]*100) >> 16),
+ ceph_osdmap_state_str(sb, sizeof(sb), state));
+ }
+ return 0;
+}
+
+static int monc_show(struct seq_file *s, void *p)
+{
+ struct ceph_client *client = s->private;
+ struct ceph_mon_statfs_request *req;
+ u64 nexttid = 0;
+ int got;
+ struct ceph_mon_client *monc = &client->monc;
+
+ mutex_lock(&monc->statfs_mutex);
+
+ if (monc->want_osdmap)
+ seq_printf(s, "want osdmap %u\n", (unsigned)monc->want_osdmap);
+ if (monc->want_mdsmap)
+ seq_printf(s, "want mdsmap %u\n", (unsigned)monc->want_mdsmap);
+
+ while (nexttid < monc->last_tid) {
+ got = radix_tree_gang_lookup(&monc->statfs_request_tree,
+ (void **)&req, nexttid, 1);
+ if (got == 0)
+ break;
+ nexttid = req->tid + 1;
+
+ seq_printf(s, "%u.%u.%u.%u:%u (%s%d)\tstatfs\n",
+ IPQUADPORT(req->request->hdr.dst.addr.ipaddr),
+ ENTITY_NAME(req->request->hdr.dst.name));
+ }
+ mutex_unlock(&monc->statfs_mutex);
+
+ return 0;
+}
+
+static int mdsc_show(struct seq_file *s, void *p)
+{
+ struct ceph_client *client = s->private;
+ struct ceph_mds_request *req;
+ u64 nexttid = 0;
+ int got;
+ struct ceph_mds_client *mdsc = &client->mdsc;
+ int pathlen;
+ u64 pathbase;
+ char *path;
+
+ mutex_lock(&mdsc->mutex);
+ while (nexttid < mdsc->last_tid) {
+ got = radix_tree_gang_lookup(&mdsc->request_tree,
+ (void **)&req, nexttid, 1);
+ if (got == 0)
+ break;
+ nexttid = req->r_tid + 1;
+
+ seq_printf(s, "%lld\t%u.%u.%u.%u:%u (%s%d)\t",
+ req->r_tid,
+ IPQUADPORT(req->r_request->hdr.dst.addr.ipaddr),
+ ENTITY_NAME(req->r_request->hdr.dst.name));
+
+ seq_printf(s, "%s", ceph_mds_op_name(req->r_op));
+
+ if (req->r_got_unsafe)
+ seq_printf(s, "\t(unsafe)");
+ else
+ seq_printf(s, "\t");
+
+ if (req->r_inode) {
+ seq_printf(s, " #%llx", ceph_ino(req->r_inode));
+ } else if (req->r_dentry) {
+ path = ceph_mdsc_build_path(req->r_dentry, &pathlen,
+ &pathbase, 0);
+ spin_lock(&req->r_dentry->d_lock);
+ seq_printf(s, " #%llx/%.*s (%s)",
+ ceph_ino(req->r_dentry->d_parent->d_inode),
+ req->r_dentry->d_name.len,
+ req->r_dentry->d_name.name,
+ path ? path : "");
+ spin_unlock(&req->r_dentry->d_lock);
+ kfree(path);
+ } else if (req->r_path1) {
+ seq_printf(s, " #%llx/%s", req->r_ino1.ino,
+ req->r_path1);
+ }
+
+ if (req->r_old_dentry) {
+ path = ceph_mdsc_build_path(req->r_old_dentry, &pathlen,
+ &pathbase, 0);
+ spin_lock(&req->r_old_dentry->d_lock);
+ seq_printf(s, " #%llx/%.*s (%s)",
+ ceph_ino(req->r_old_dentry->d_parent->d_inode),
+ req->r_old_dentry->d_name.len,
+ req->r_old_dentry->d_name.name,
+ path ? path : "");
+ spin_unlock(&req->r_old_dentry->d_lock);
+ kfree(path);
+ } else if (req->r_path2) {
+ if (req->r_ino2.ino)
+ seq_printf(s, " #%llx/%s", req->r_ino2.ino,
+ req->r_path2);
+ else
+ seq_printf(s, " %s", req->r_path2);
+ }
+
+ seq_printf(s, "\n");
+ }
+ mutex_unlock(&mdsc->mutex);
+
+ return 0;
+}
+
+static int osdc_show(struct seq_file *s, void *p)
+{
+ struct ceph_client *client = s->private;
+ struct ceph_osd_client *osdc = &client->osdc;
+ u64 nexttid = 0;
+
+ mutex_lock(&osdc->request_mutex);
+ while (nexttid < osdc->last_tid) {
+ struct ceph_osd_request *req;
+ struct ceph_osd_request_head *head;
+ struct ceph_osd_op *op;
+ int num_ops;
+ int opcode, olen;
+ int got, i;
+
+ got = radix_tree_gang_lookup(&osdc->request_tree,
+ (void **)&req, nexttid, 1);
+ if (got == 0)
+ break;
+
+ nexttid = req->r_tid + 1;
+
+ seq_printf(s, "%lld\t%u.%u.%u.%u:%u (%s%d)\t",
+ req->r_tid,
+ IPQUADPORT(req->r_request->hdr.dst.addr.ipaddr),
+ ENTITY_NAME(req->r_request->hdr.dst.name));
+
+ head = req->r_request->front.iov_base;
+ op = (void *)(head + 1);
+
+ num_ops = le16_to_cpu(head->num_ops);
+ olen = le32_to_cpu(head->object_len);
+ seq_printf(s, "%.*s", olen,
+ (const char *)(head->ops + num_ops));
+
+ if (req->r_reassert_version.epoch)
+ seq_printf(s, "\t%u'%llu",
+ (unsigned)le32_to_cpu(req->r_reassert_version.epoch),
+ le64_to_cpu(req->r_reassert_version.version));
+ else
+ seq_printf(s, "\t");
+
+ for (i = 0; i < num_ops; i++) {
+ opcode = le16_to_cpu(op->op);
+ seq_printf(s, "\t%s", ceph_osd_op_name(opcode));
+ op++;
+ }
+
+ seq_printf(s, "\n");
+ }
+ mutex_unlock(&osdc->request_mutex);
+ return 0;
+}
+
+static int caps_reservation_show(struct seq_file *s, void *p)
+{
+ int total, avail, used, reserved;
+
+ ceph_reservation_status(&total, &avail, &used, &reserved);
+
+ seq_printf(s, "total\t\t%d\n"
+ "avail\t\t%d\n"
+ "used\t\t%d\n"
+ "reserved\t%d\n",
+ total, avail, used, reserved);
+ return 0;
+}
+
+static int dentry_lru_show(struct seq_file *s, void *ptr)
+{
+ struct ceph_client *client = s->private;
+ struct ceph_mds_client *mdsc = &client->mdsc;
+ struct ceph_dentry_info *di;
+
+ spin_lock(&mdsc->dentry_lru_lock);
+ list_for_each_entry(di, &mdsc->dentry_lru, lru) {
+ struct dentry *dentry = di->dentry;
+ seq_printf(s, "%p %p\t%.*s\n",
+ di, dentry, dentry->d_name.len, dentry->d_name.name);
+ }
+ spin_unlock(&mdsc->dentry_lru_lock);
+
+ return 0;
+}
+
+#define DEFINE_SHOW_FUNC(name) \
+static int name##_open(struct inode *inode, struct file *file) \
+{ \
+ struct seq_file *sf; \
+ int ret; \
+ \
+ ret = single_open(file, name, NULL); \
+ sf = file->private_data; \
+ sf->private = inode->i_private; \
+ return ret; \
+} \
+ \
+static const struct file_operations name##_fops = { \
+ .open = name##_open, \
+ .read = seq_read, \
+ .llseek = seq_lseek, \
+ .release = single_release, \
+};
+
+DEFINE_SHOW_FUNC(fsid_show)
+DEFINE_SHOW_FUNC(monmap_show)
+DEFINE_SHOW_FUNC(mdsmap_show)
+DEFINE_SHOW_FUNC(osdmap_show)
+DEFINE_SHOW_FUNC(monc_show)
+DEFINE_SHOW_FUNC(mdsc_show)
+DEFINE_SHOW_FUNC(osdc_show)
+DEFINE_SHOW_FUNC(caps_reservation_show)
+DEFINE_SHOW_FUNC(dentry_lru_show)
+
+int ceph_debugfs_init(void)
+{
+ int ret = -ENOMEM;
+
+ ceph_debugfs_dir = debugfs_create_dir("ceph", NULL);
+
+ if (!ceph_debugfs_dir)
+ goto out;
+
+ ceph_debugfs_debug = debugfs_create_u32("debug",
+ 0600,
+ ceph_debugfs_dir,
+ (u32 *)&ceph_debug);
+ if (!ceph_debugfs_debug)
+ goto out;
+
+ ceph_debugfs_debug_msgr = debugfs_create_u32("msgr",
+ 0600,
+ ceph_debugfs_dir,
+ (u32 *)&ceph_debug_msgr);
+ if (!ceph_debugfs_debug_msgr)
+ goto out;
+
+ ceph_debugfs_debug_console = debugfs_create_u32("console",
+ 0600,
+ ceph_debugfs_dir,
+ (u32 *)&ceph_debug_console);
+ if (!ceph_debugfs_debug_console)
+ goto out;
+
+ ceph_debugfs_debug_mask = debugfs_create_file("mask",
+ 0600,
+ ceph_debugfs_dir,
+ NULL,
+ &ceph_debug_mask_fops);
+ if (!ceph_debugfs_debug_mask)
+ goto out;
+
+ ceph_debugfs_caps_reservation = debugfs_create_file("caps_reservation",
+ 0400,
+ ceph_debugfs_dir,
+ NULL,
+ &caps_reservation_show_fops);
+ if (!ceph_debugfs_caps_reservation)
+ goto out;
+
+ return 0;
+
+out:
+ ceph_debugfs_cleanup();
+ return ret;
+}
+
+void ceph_debugfs_cleanup(void)
+{
+ debugfs_remove(ceph_debugfs_caps_reservation);
+ debugfs_remove(ceph_debugfs_debug_console);
+ debugfs_remove(ceph_debugfs_debug_mask);
+ debugfs_remove(ceph_debugfs_debug_msgr);
+ debugfs_remove(ceph_debugfs_debug);
+ debugfs_remove(ceph_debugfs_dir);
+}
+
+int ceph_debugfs_client_init(struct ceph_client *client)
+{
+ int ret = 0;
+#define TMP_NAME_SIZE 16
+ char name[TMP_NAME_SIZE];
+
+ snprintf(name, TMP_NAME_SIZE, "client%d", client->whoami);
+
+ client->debugfs_dir = debugfs_create_dir(name, ceph_debugfs_dir);
+ if (!client->debugfs_dir)
+ goto out;
+
+ client->monc.debugfs_file = debugfs_create_file("monc",
+ 0600,
+ client->debugfs_dir,
+ client,
+ &monc_show_fops);
+ if (ret)
+ goto out;
+
+ client->mdsc.debugfs_file = debugfs_create_file("mdsc",
+ 0600,
+ client->debugfs_dir,
+ client,
+ &mdsc_show_fops);
+ if (ret)
+ goto out;
+
+ client->osdc.debugfs_file = debugfs_create_file("osdc",
+ 0600,
+ client->debugfs_dir,
+ client,
+ &osdc_show_fops);
+ if (ret)
+ goto out;
+
+ client->debugfs_fsid = debugfs_create_file("fsid",
+ 0600,
+ client->debugfs_dir,
+ client,
+ &fsid_show_fops);
+ if (!client->debugfs_fsid)
+ goto out;
+
+ client->debugfs_monmap = debugfs_create_file("monmap",
+ 0600,
+ client->debugfs_dir,
+ client,
+ &monmap_show_fops);
+ if (!client->debugfs_monmap)
+ goto out;
+
+ client->debugfs_mdsmap = debugfs_create_file("mdsmap",
+ 0600,
+ client->debugfs_dir,
+ client,
+ &mdsmap_show_fops);
+ if (!client->debugfs_mdsmap)
+ goto out;
+
+ client->debugfs_osdmap = debugfs_create_file("osdmap",
+ 0600,
+ client->debugfs_dir,
+ client,
+ &osdmap_show_fops);
+ if (!client->debugfs_osdmap)
+ goto out;
+
+ client->debugfs_dentry_lru = debugfs_create_file("dentry_lru",
+ 0600,
+ client->debugfs_dir,
+ client,
+ &dentry_lru_show_fops);
+ if (!client->debugfs_osdmap)
+ goto out;
+
+ return 0;
+
+out:
+ ceph_debugfs_client_cleanup(client);
+ return ret;
+}
+
+void ceph_debugfs_client_cleanup(struct ceph_client *client)
+{
+ debugfs_remove(client->monc.debugfs_file);
+ debugfs_remove(client->mdsc.debugfs_file);
+ debugfs_remove(client->osdc.debugfs_file);
+ debugfs_remove(client->debugfs_dentry_lru);
+ debugfs_remove(client->debugfs_monmap);
+ debugfs_remove(client->debugfs_mdsmap);
+ debugfs_remove(client->debugfs_osdmap);
+ debugfs_remove(client->debugfs_fsid);
+ debugfs_remove(client->debugfs_dir);
+}
+
--
1.5.6.5


\
 
 \ /
  Last update: 2009-07-15 23:29    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site