Orangefs: change pvfs2 filenames to orangefs
Also changed references within source files that referred to
header files whose names had changed.
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
diff --git a/fs/orangefs/orangefs-debugfs.c b/fs/orangefs/orangefs-debugfs.c
new file mode 100644
index 0000000..7319f1a
--- /dev/null
+++ b/fs/orangefs/orangefs-debugfs.c
@@ -0,0 +1,458 @@
+/*
+ * What: /sys/kernel/debug/orangefs/debug-help
+ * Date: June 2015
+ * Contact: Mike Marshall <hubcap@omnibond.com>
+ * Description:
+ * List of client and kernel debug keywords.
+ *
+ *
+ * What: /sys/kernel/debug/orangefs/client-debug
+ * Date: June 2015
+ * Contact: Mike Marshall <hubcap@omnibond.com>
+ * Description:
+ * Debug setting for "the client", the userspace
+ * helper for the kernel module.
+ *
+ *
+ * What: /sys/kernel/debug/orangefs/kernel-debug
+ * Date: June 2015
+ * Contact: Mike Marshall <hubcap@omnibond.com>
+ * Description:
+ * Debug setting for the orangefs kernel module.
+ *
+ * Any of the keywords, or comma-separated lists
+ * of keywords, from debug-help can be catted to
+ * client-debug or kernel-debug.
+ *
+ * "none", "all" and "verbose" are special keywords
+ * for client-debug. Setting client-debug to "all"
+ * is kind of like trying to drink water from a
+ * fire hose, "verbose" triggers most of the same
+ * output except for the constant flow of output
+ * from the main wait loop.
+ *
+ * "none" and "all" are similar settings for kernel-debug
+ * no need for a "verbose".
+ */
+#include <linux/debugfs.h>
+#include <linux/slab.h>
+
+#include <linux/uaccess.h>
+
+#include "orangefs-debugfs.h"
+#include "protocol.h"
+#include "orangefs-kernel.h"
+
+static int orangefs_debug_disabled = 1;
+
+static int orangefs_debug_help_open(struct inode *, struct file *);
+
+const struct file_operations debug_help_fops = {
+ .open = orangefs_debug_help_open,
+ .read = seq_read,
+ .release = seq_release,
+ .llseek = seq_lseek,
+};
+
+static void *help_start(struct seq_file *, loff_t *);
+static void *help_next(struct seq_file *, void *, loff_t *);
+static void help_stop(struct seq_file *, void *);
+static int help_show(struct seq_file *, void *);
+
+static const struct seq_operations help_debug_ops = {
+ .start = help_start,
+ .next = help_next,
+ .stop = help_stop,
+ .show = help_show,
+};
+
+/*
+ * Used to protect data in ORANGEFS_KMOD_DEBUG_FILE and
+ * ORANGEFS_KMOD_DEBUG_FILE.
+ */
+static DEFINE_MUTEX(orangefs_debug_lock);
+
+int orangefs_debug_open(struct inode *, struct file *);
+
+static ssize_t orangefs_debug_read(struct file *,
+ char __user *,
+ size_t,
+ loff_t *);
+
+static ssize_t orangefs_debug_write(struct file *,
+ const char __user *,
+ size_t,
+ loff_t *);
+
+static const struct file_operations kernel_debug_fops = {
+ .open = orangefs_debug_open,
+ .read = orangefs_debug_read,
+ .write = orangefs_debug_write,
+ .llseek = generic_file_llseek,
+};
+
+/*
+ * initialize kmod debug operations, create orangefs debugfs dir and
+ * ORANGEFS_KMOD_DEBUG_HELP_FILE.
+ */
+int orangefs_debugfs_init(void)
+{
+
+ int rc = -ENOMEM;
+
+ debug_dir = debugfs_create_dir("orangefs", NULL);
+ if (!debug_dir)
+ goto out;
+
+ help_file_dentry = debugfs_create_file(ORANGEFS_KMOD_DEBUG_HELP_FILE,
+ 0444,
+ debug_dir,
+ debug_help_string,
+ &debug_help_fops);
+ if (!help_file_dentry)
+ goto out;
+
+ orangefs_debug_disabled = 0;
+ rc = 0;
+
+out:
+ if (rc)
+ orangefs_debugfs_cleanup();
+
+ return rc;
+}
+
+void orangefs_debugfs_cleanup(void)
+{
+ debugfs_remove_recursive(debug_dir);
+}
+
+/* open ORANGEFS_KMOD_DEBUG_HELP_FILE */
+static int orangefs_debug_help_open(struct inode *inode, struct file *file)
+{
+ int rc = -ENODEV;
+ int ret;
+
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG,
+ "orangefs_debug_help_open: start\n");
+
+ if (orangefs_debug_disabled)
+ goto out;
+
+ ret = seq_open(file, &help_debug_ops);
+ if (ret)
+ goto out;
+
+ ((struct seq_file *)(file->private_data))->private = inode->i_private;
+
+ rc = 0;
+
+out:
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG,
+ "orangefs_debug_help_open: rc:%d:\n",
+ rc);
+ return rc;
+}
+
+/*
+ * I think start always gets called again after stop. Start
+ * needs to return NULL when it is done. The whole "payload"
+ * in this case is a single (long) string, so by the second
+ * time we get to start (pos = 1), we're done.
+ */
+static void *help_start(struct seq_file *m, loff_t *pos)
+{
+ void *payload = NULL;
+
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG, "help_start: start\n");
+
+ if (*pos == 0)
+ payload = m->private;
+
+ return payload;
+}
+
+static void *help_next(struct seq_file *m, void *v, loff_t *pos)
+{
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG, "help_next: start\n");
+
+ return NULL;
+}
+
+static void help_stop(struct seq_file *m, void *p)
+{
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG, "help_stop: start\n");
+}
+
+static int help_show(struct seq_file *m, void *v)
+{
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG, "help_show: start\n");
+
+ seq_puts(m, v);
+
+ return 0;
+}
+
+/*
+ * initialize the kernel-debug file.
+ */
+int orangefs_kernel_debug_init(void)
+{
+
+ int rc = -ENOMEM;
+ struct dentry *ret;
+ char *k_buffer = NULL;
+
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG, "%s: start\n", __func__);
+
+ k_buffer = kzalloc(ORANGEFS_MAX_DEBUG_STRING_LEN, GFP_KERNEL);
+ if (!k_buffer)
+ goto out;
+
+ if (strlen(kernel_debug_string) + 1 < ORANGEFS_MAX_DEBUG_STRING_LEN) {
+ strcpy(k_buffer, kernel_debug_string);
+ strcat(k_buffer, "\n");
+ } else {
+ strcpy(k_buffer, "none\n");
+ pr_info("%s: overflow 1!\n", __func__);
+ }
+
+ ret = debugfs_create_file(ORANGEFS_KMOD_DEBUG_FILE,
+ 0444,
+ debug_dir,
+ k_buffer,
+ &kernel_debug_fops);
+ if (!ret) {
+ pr_info("%s: failed to create %s.\n",
+ __func__,
+ ORANGEFS_KMOD_DEBUG_FILE);
+ goto out;
+ }
+
+ rc = 0;
+
+out:
+ if (rc)
+ orangefs_debugfs_cleanup();
+
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG, "%s: rc:%d:\n", __func__, rc);
+ return rc;
+}
+
+/*
+ * initialize the client-debug file.
+ */
+int orangefs_client_debug_init(void)
+{
+
+ int rc = -ENOMEM;
+ char *c_buffer = NULL;
+
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG, "%s: start\n", __func__);
+
+ c_buffer = kzalloc(ORANGEFS_MAX_DEBUG_STRING_LEN, GFP_KERNEL);
+ if (!c_buffer)
+ goto out;
+
+ if (strlen(client_debug_string) + 1 < ORANGEFS_MAX_DEBUG_STRING_LEN) {
+ strcpy(c_buffer, client_debug_string);
+ strcat(c_buffer, "\n");
+ } else {
+ strcpy(c_buffer, "none\n");
+ pr_info("%s: overflow! 2\n", __func__);
+ }
+
+ client_debug_dentry = debugfs_create_file(ORANGEFS_CLIENT_DEBUG_FILE,
+ 0444,
+ debug_dir,
+ c_buffer,
+ &kernel_debug_fops);
+ if (!client_debug_dentry) {
+ pr_info("%s: failed to create %s.\n",
+ __func__,
+ ORANGEFS_CLIENT_DEBUG_FILE);
+ goto out;
+ }
+
+ rc = 0;
+
+out:
+ if (rc)
+ orangefs_debugfs_cleanup();
+
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG, "%s: rc:%d:\n", __func__, rc);
+ return rc;
+}
+
+/* open ORANGEFS_KMOD_DEBUG_FILE or ORANGEFS_CLIENT_DEBUG_FILE.*/
+int orangefs_debug_open(struct inode *inode, struct file *file)
+{
+ int rc = -ENODEV;
+
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG,
+ "%s: orangefs_debug_disabled: %d\n",
+ __func__,
+ orangefs_debug_disabled);
+
+ if (orangefs_debug_disabled)
+ goto out;
+
+ rc = 0;
+ mutex_lock(&orangefs_debug_lock);
+ file->private_data = inode->i_private;
+ mutex_unlock(&orangefs_debug_lock);
+
+out:
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG,
+ "orangefs_debug_open: rc: %d\n",
+ rc);
+ return rc;
+}
+
+static ssize_t orangefs_debug_read(struct file *file,
+ char __user *ubuf,
+ size_t count,
+ loff_t *ppos)
+{
+ char *buf;
+ int sprintf_ret;
+ ssize_t read_ret = -ENOMEM;
+
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG, "orangefs_debug_read: start\n");
+
+ buf = kmalloc(ORANGEFS_MAX_DEBUG_STRING_LEN, GFP_KERNEL);
+ if (!buf)
+ goto out;
+
+ mutex_lock(&orangefs_debug_lock);
+ sprintf_ret = sprintf(buf, "%s", (char *)file->private_data);
+ mutex_unlock(&orangefs_debug_lock);
+
+ read_ret = simple_read_from_buffer(ubuf, count, ppos, buf, sprintf_ret);
+
+ kfree(buf);
+
+out:
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG,
+ "orangefs_debug_read: ret: %zu\n",
+ read_ret);
+
+ return read_ret;
+}
+
+static ssize_t orangefs_debug_write(struct file *file,
+ const char __user *ubuf,
+ size_t count,
+ loff_t *ppos)
+{
+ char *buf;
+ int rc = -EFAULT;
+ size_t silly = 0;
+ char *debug_string;
+ struct orangefs_kernel_op_s *new_op = NULL;
+ struct client_debug_mask c_mask = { NULL, 0, 0 };
+
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG,
+ "orangefs_debug_write: %s\n",
+ file->f_path.dentry->d_name.name);
+
+ /*
+ * Thwart users who try to jamb a ridiculous number
+ * of bytes into the debug file...
+ */
+ if (count > ORANGEFS_MAX_DEBUG_STRING_LEN + 1) {
+ silly = count;
+ count = ORANGEFS_MAX_DEBUG_STRING_LEN + 1;
+ }
+
+ buf = kmalloc(ORANGEFS_MAX_DEBUG_STRING_LEN, GFP_KERNEL);
+ if (!buf)
+ goto out;
+ memset(buf, 0, ORANGEFS_MAX_DEBUG_STRING_LEN);
+
+ if (copy_from_user(buf, ubuf, count - 1)) {
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG,
+ "%s: copy_from_user failed!\n",
+ __func__);
+ goto out;
+ }
+
+ /*
+ * Map the keyword string from userspace into a valid debug mask.
+ * The mapping process involves mapping the human-inputted string
+ * into a valid mask, and then rebuilding the string from the
+ * verified valid mask.
+ *
+ * A service operation is required to set a new client-side
+ * debug mask.
+ */
+ if (!strcmp(file->f_path.dentry->d_name.name,
+ ORANGEFS_KMOD_DEBUG_FILE)) {
+ debug_string_to_mask(buf, &gossip_debug_mask, 0);
+ debug_mask_to_string(&gossip_debug_mask, 0);
+ debug_string = kernel_debug_string;
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG,
+ "New kernel debug string is %s\n",
+ kernel_debug_string);
+ } else {
+ /* Can't reset client debug mask if client is not running. */
+ if (is_daemon_in_service()) {
+ pr_info("%s: Client not running :%d:\n",
+ __func__,
+ is_daemon_in_service());
+ goto out;
+ }
+
+ debug_string_to_mask(buf, &c_mask, 1);
+ debug_mask_to_string(&c_mask, 1);
+ debug_string = client_debug_string;
+
+ new_op = op_alloc(ORANGEFS_VFS_OP_PARAM);
+ if (!new_op) {
+ pr_info("%s: op_alloc failed!\n", __func__);
+ goto out;
+ }
+
+ new_op->upcall.req.param.op =
+ ORANGEFS_PARAM_REQUEST_OP_TWO_MASK_VALUES;
+ new_op->upcall.req.param.type = ORANGEFS_PARAM_REQUEST_SET;
+ memset(new_op->upcall.req.param.s_value,
+ 0,
+ ORANGEFS_MAX_DEBUG_STRING_LEN);
+ sprintf(new_op->upcall.req.param.s_value,
+ "%llx %llx\n",
+ c_mask.mask1,
+ c_mask.mask2);
+
+ /* service_operation returns 0 on success... */
+ rc = service_operation(new_op,
+ "orangefs_param",
+ ORANGEFS_OP_INTERRUPTIBLE);
+
+ if (rc)
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG,
+ "%s: service_operation failed! rc:%d:\n",
+ __func__,
+ rc);
+
+ op_release(new_op);
+ }
+
+ mutex_lock(&orangefs_debug_lock);
+ memset(file->f_inode->i_private, 0, ORANGEFS_MAX_DEBUG_STRING_LEN);
+ sprintf((char *)file->f_inode->i_private, "%s\n", debug_string);
+ mutex_unlock(&orangefs_debug_lock);
+
+ *ppos += count;
+ if (silly)
+ rc = silly;
+ else
+ rc = count;
+
+out:
+ gossip_debug(GOSSIP_DEBUGFS_DEBUG,
+ "orangefs_debug_write: rc: %d\n",
+ rc);
+ kfree(buf);
+ return rc;
+}