mirror of
https://github.com/Fishwaldo/Star64_linux.git
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orangefs: clean up debugfs globals
Mostly this is moving code into orangefs-debugfs.c so that globals turn into static globals. Then gossip_debug_mask is renamed orangefs_gossip_debug_mask but keeps global visibility, so it can be used from a macro. Signed-off-by: Martin Brandenburg <martin@omnibond.com>
This commit is contained in:
Martin Brandenburg
parent
a21aae3bb1
commit
44f4641073
7 changed files with 706 additions and 706 deletions
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@ -43,36 +43,35 @@
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#include "protocol.h"
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#include "orangefs-kernel.h"
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static int orangefs_debug_disabled = 1;
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#define DEBUG_HELP_STRING_SIZE 4096
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#define HELP_STRING_UNINITIALIZED \
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"Client Debug Keywords are unknown until the first time\n" \
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"the client is started after boot.\n"
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#define ORANGEFS_KMOD_DEBUG_HELP_FILE "debug-help"
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#define ORANGEFS_KMOD_DEBUG_FILE "kernel-debug"
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#define ORANGEFS_CLIENT_DEBUG_FILE "client-debug"
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#define ORANGEFS_VERBOSE "verbose"
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#define ORANGEFS_ALL "all"
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static int orangefs_debug_help_open(struct inode *, struct file *);
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const struct file_operations debug_help_fops = {
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.open = orangefs_debug_help_open,
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.read = seq_read,
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.release = seq_release,
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.llseek = seq_lseek,
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/*
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* An array of client_debug_mask will be built to hold debug keyword/mask
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* values fetched from userspace.
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*/
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struct client_debug_mask {
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char *keyword;
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__u64 mask1;
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__u64 mask2;
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};
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static int orangefs_kernel_debug_init(void);
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static int orangefs_debug_help_open(struct inode *, struct file *);
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static void *help_start(struct seq_file *, loff_t *);
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static void *help_next(struct seq_file *, void *, loff_t *);
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static void help_stop(struct seq_file *, void *);
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static int help_show(struct seq_file *, void *);
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static const struct seq_operations help_debug_ops = {
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.start = help_start,
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.next = help_next,
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.stop = help_stop,
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.show = help_show,
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};
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/*
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* Used to protect data in ORANGEFS_KMOD_DEBUG_FILE and
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* ORANGEFS_KMOD_DEBUG_FILE.
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*/
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static DEFINE_MUTEX(orangefs_debug_lock);
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int orangefs_debug_open(struct inode *, struct file *);
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static int orangefs_debug_open(struct inode *, struct file *);
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static ssize_t orangefs_debug_read(struct file *,
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char __user *,
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@ -84,6 +83,43 @@ static ssize_t orangefs_debug_write(struct file *,
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size_t,
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loff_t *);
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static int orangefs_prepare_cdm_array(char *);
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static void debug_mask_to_string(void *, int);
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static void do_k_string(void *, int);
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static void do_c_string(void *, int);
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static int keyword_is_amalgam(char *);
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static int check_amalgam_keyword(void *, int);
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static void debug_string_to_mask(char *, void *, int);
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static void do_c_mask(int, char *, struct client_debug_mask **);
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static void do_k_mask(int, char *, __u64 **);
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static char kernel_debug_string[ORANGEFS_MAX_DEBUG_STRING_LEN] = "none";
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static char *debug_help_string;
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static char client_debug_string[ORANGEFS_MAX_DEBUG_STRING_LEN];
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static char client_debug_array_string[ORANGEFS_MAX_DEBUG_STRING_LEN];
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static struct dentry *help_file_dentry;
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static struct dentry *client_debug_dentry;
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static struct dentry *debug_dir;
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static unsigned int kernel_mask_set_mod_init;
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static int orangefs_debug_disabled = 1;
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static int help_string_initialized;
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static const struct seq_operations help_debug_ops = {
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.start = help_start,
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.next = help_next,
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.stop = help_stop,
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.show = help_show,
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};
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const struct file_operations debug_help_fops = {
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.open = orangefs_debug_help_open,
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.read = seq_read,
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.release = seq_release,
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.llseek = seq_lseek,
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};
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static const struct file_operations kernel_debug_fops = {
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.open = orangefs_debug_open,
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.read = orangefs_debug_read,
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@ -91,15 +127,55 @@ static const struct file_operations kernel_debug_fops = {
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.llseek = generic_file_llseek,
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};
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static int client_all_index;
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static int client_verbose_index;
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static struct client_debug_mask *cdm_array;
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static int cdm_element_count;
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static struct client_debug_mask client_debug_mask;
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/*
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* Used to protect data in ORANGEFS_KMOD_DEBUG_FILE and
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* ORANGEFS_KMOD_DEBUG_FILE.
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*/
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static DEFINE_MUTEX(orangefs_debug_lock);
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/*
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* initialize kmod debug operations, create orangefs debugfs dir and
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* ORANGEFS_KMOD_DEBUG_HELP_FILE.
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*/
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int orangefs_debugfs_init(void)
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int orangefs_debugfs_init(int debug_mask)
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{
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int rc = -ENOMEM;
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/* convert input debug mask to a 64-bit unsigned integer */
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orangefs_gossip_debug_mask = (unsigned long long)debug_mask;
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/*
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* set the kernel's gossip debug string; invalid mask values will
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* be ignored.
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*/
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debug_mask_to_string(&orangefs_gossip_debug_mask, 0);
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/* remove any invalid values from the mask */
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debug_string_to_mask(kernel_debug_string, &orangefs_gossip_debug_mask,
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0);
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/*
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* if the mask has a non-zero value, then indicate that the mask
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* was set when the kernel module was loaded. The orangefs dev ioctl
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* command will look at this boolean to determine if the kernel's
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* debug mask should be overwritten when the client-core is started.
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*/
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if (orangefs_gossip_debug_mask != 0)
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kernel_mask_set_mod_init = true;
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pr_info("%s: called with debug mask: :%s: :%llx:\n",
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__func__,
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kernel_debug_string,
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(unsigned long long)orangefs_gossip_debug_mask);
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debug_dir = debugfs_create_dir("orangefs", NULL);
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if (!debug_dir) {
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pr_info("%s: debugfs_create_dir failed.\n", __func__);
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@ -117,13 +193,58 @@ int orangefs_debugfs_init(void)
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}
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orangefs_debug_disabled = 0;
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rc = 0;
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rc = orangefs_kernel_debug_init();
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out:
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return rc;
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}
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/*
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* initialize the kernel-debug file.
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*/
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static int orangefs_kernel_debug_init(void)
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{
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int rc = -ENOMEM;
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struct dentry *ret;
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char *k_buffer = NULL;
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gossip_debug(GOSSIP_DEBUGFS_DEBUG, "%s: start\n", __func__);
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k_buffer = kzalloc(ORANGEFS_MAX_DEBUG_STRING_LEN, GFP_KERNEL);
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if (!k_buffer)
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goto out;
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if (strlen(kernel_debug_string) + 1 < ORANGEFS_MAX_DEBUG_STRING_LEN) {
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strcpy(k_buffer, kernel_debug_string);
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strcat(k_buffer, "\n");
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} else {
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strcpy(k_buffer, "none\n");
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pr_info("%s: overflow 1!\n", __func__);
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}
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ret = debugfs_create_file(ORANGEFS_KMOD_DEBUG_FILE,
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0444,
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debug_dir,
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k_buffer,
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&kernel_debug_fops);
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if (!ret) {
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pr_info("%s: failed to create %s.\n",
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__func__,
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ORANGEFS_KMOD_DEBUG_FILE);
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goto out;
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}
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rc = 0;
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out:
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gossip_debug(GOSSIP_DEBUGFS_DEBUG, "%s: rc:%d:\n", __func__, rc);
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return rc;
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}
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void orangefs_debugfs_cleanup(void)
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{
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debugfs_remove_recursive(debug_dir);
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@ -195,49 +316,6 @@ static int help_show(struct seq_file *m, void *v)
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return 0;
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}
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/*
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* initialize the kernel-debug file.
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*/
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int orangefs_kernel_debug_init(void)
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{
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int rc = -ENOMEM;
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struct dentry *ret;
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char *k_buffer = NULL;
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gossip_debug(GOSSIP_DEBUGFS_DEBUG, "%s: start\n", __func__);
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k_buffer = kzalloc(ORANGEFS_MAX_DEBUG_STRING_LEN, GFP_KERNEL);
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if (!k_buffer)
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goto out;
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if (strlen(kernel_debug_string) + 1 < ORANGEFS_MAX_DEBUG_STRING_LEN) {
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strcpy(k_buffer, kernel_debug_string);
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strcat(k_buffer, "\n");
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} else {
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strcpy(k_buffer, "none\n");
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pr_info("%s: overflow 1!\n", __func__);
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}
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ret = debugfs_create_file(ORANGEFS_KMOD_DEBUG_FILE,
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0444,
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debug_dir,
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k_buffer,
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&kernel_debug_fops);
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if (!ret) {
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pr_info("%s: failed to create %s.\n",
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__func__,
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ORANGEFS_KMOD_DEBUG_FILE);
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goto out;
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}
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rc = 0;
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out:
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gossip_debug(GOSSIP_DEBUGFS_DEBUG, "%s: rc:%d:\n", __func__, rc);
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return rc;
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}
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/*
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* initialize the client-debug file.
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*/
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@ -282,7 +360,7 @@ out:
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}
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/* open ORANGEFS_KMOD_DEBUG_FILE or ORANGEFS_CLIENT_DEBUG_FILE.*/
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int orangefs_debug_open(struct inode *inode, struct file *file)
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static int orangefs_debug_open(struct inode *inode, struct file *file)
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{
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int rc = -ENODEV;
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@ -384,8 +462,8 @@ static ssize_t orangefs_debug_write(struct file *file,
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*/
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if (!strcmp(file->f_path.dentry->d_name.name,
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ORANGEFS_KMOD_DEBUG_FILE)) {
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debug_string_to_mask(buf, &gossip_debug_mask, 0);
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debug_mask_to_string(&gossip_debug_mask, 0);
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debug_string_to_mask(buf, &orangefs_gossip_debug_mask, 0);
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debug_mask_to_string(&orangefs_gossip_debug_mask, 0);
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debug_string = kernel_debug_string;
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gossip_debug(GOSSIP_DEBUGFS_DEBUG,
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"New kernel debug string is %s\n",
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@ -452,3 +530,546 @@ out:
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kfree(buf);
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return rc;
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}
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/*
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* After obtaining a string representation of the client's debug
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* keywords and their associated masks, this function is called to build an
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* array of these values.
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*/
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static int orangefs_prepare_cdm_array(char *debug_array_string)
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{
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int i;
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int rc = -EINVAL;
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char *cds_head = NULL;
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char *cds_delimiter = NULL;
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int keyword_len = 0;
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gossip_debug(GOSSIP_UTILS_DEBUG, "%s: start\n", __func__);
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/*
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* figure out how many elements the cdm_array needs.
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*/
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for (i = 0; i < strlen(debug_array_string); i++)
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if (debug_array_string[i] == '\n')
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cdm_element_count++;
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if (!cdm_element_count) {
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pr_info("No elements in client debug array string!\n");
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goto out;
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}
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cdm_array =
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kzalloc(cdm_element_count * sizeof(struct client_debug_mask),
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GFP_KERNEL);
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if (!cdm_array) {
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pr_info("malloc failed for cdm_array!\n");
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rc = -ENOMEM;
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goto out;
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}
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cds_head = debug_array_string;
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for (i = 0; i < cdm_element_count; i++) {
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cds_delimiter = strchr(cds_head, '\n');
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*cds_delimiter = '\0';
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keyword_len = strcspn(cds_head, " ");
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cdm_array[i].keyword = kzalloc(keyword_len + 1, GFP_KERNEL);
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if (!cdm_array[i].keyword) {
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rc = -ENOMEM;
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goto out;
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}
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sscanf(cds_head,
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"%s %llx %llx",
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cdm_array[i].keyword,
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(unsigned long long *)&(cdm_array[i].mask1),
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(unsigned long long *)&(cdm_array[i].mask2));
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if (!strcmp(cdm_array[i].keyword, ORANGEFS_VERBOSE))
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client_verbose_index = i;
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if (!strcmp(cdm_array[i].keyword, ORANGEFS_ALL))
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client_all_index = i;
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cds_head = cds_delimiter + 1;
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}
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rc = cdm_element_count;
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gossip_debug(GOSSIP_UTILS_DEBUG, "%s: rc:%d:\n", __func__, rc);
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out:
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return rc;
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}
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/*
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* /sys/kernel/debug/orangefs/debug-help can be catted to
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* see all the available kernel and client debug keywords.
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*
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* When the kernel boots, we have no idea what keywords the
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* client supports, nor their associated masks.
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*
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* We pass through this function once at boot and stamp a
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* boilerplate "we don't know" message for the client in the
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* debug-help file. We pass through here again when the client
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* starts and then we can fill out the debug-help file fully.
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*
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* The client might be restarted any number of times between
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* reboots, we only build the debug-help file the first time.
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*/
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int orangefs_prepare_debugfs_help_string(int at_boot)
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{
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int rc = -EINVAL;
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int i;
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int byte_count = 0;
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char *client_title = "Client Debug Keywords:\n";
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char *kernel_title = "Kernel Debug Keywords:\n";
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gossip_debug(GOSSIP_UTILS_DEBUG, "%s: start\n", __func__);
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if (at_boot) {
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byte_count += strlen(HELP_STRING_UNINITIALIZED);
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client_title = HELP_STRING_UNINITIALIZED;
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} else {
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/*
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* fill the client keyword/mask array and remember
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* how many elements there were.
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*/
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cdm_element_count =
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orangefs_prepare_cdm_array(client_debug_array_string);
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if (cdm_element_count <= 0)
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goto out;
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/* Count the bytes destined for debug_help_string. */
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byte_count += strlen(client_title);
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for (i = 0; i < cdm_element_count; i++) {
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byte_count += strlen(cdm_array[i].keyword + 2);
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if (byte_count >= DEBUG_HELP_STRING_SIZE) {
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pr_info("%s: overflow 1!\n", __func__);
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goto out;
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}
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}
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gossip_debug(GOSSIP_UTILS_DEBUG,
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"%s: cdm_element_count:%d:\n",
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__func__,
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cdm_element_count);
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}
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byte_count += strlen(kernel_title);
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for (i = 0; i < num_kmod_keyword_mask_map; i++) {
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byte_count +=
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strlen(s_kmod_keyword_mask_map[i].keyword + 2);
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if (byte_count >= DEBUG_HELP_STRING_SIZE) {
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pr_info("%s: overflow 2!\n", __func__);
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goto out;
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}
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}
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/* build debug_help_string. */
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debug_help_string = kzalloc(DEBUG_HELP_STRING_SIZE, GFP_KERNEL);
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if (!debug_help_string) {
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rc = -ENOMEM;
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goto out;
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}
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strcat(debug_help_string, client_title);
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if (!at_boot) {
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for (i = 0; i < cdm_element_count; i++) {
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strcat(debug_help_string, "\t");
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strcat(debug_help_string, cdm_array[i].keyword);
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strcat(debug_help_string, "\n");
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}
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}
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strcat(debug_help_string, "\n");
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strcat(debug_help_string, kernel_title);
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for (i = 0; i < num_kmod_keyword_mask_map; i++) {
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strcat(debug_help_string, "\t");
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strcat(debug_help_string, s_kmod_keyword_mask_map[i].keyword);
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strcat(debug_help_string, "\n");
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}
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rc = 0;
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out:
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return rc;
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}
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/*
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* kernel = type 0
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* client = type 1
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*/
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static void debug_mask_to_string(void *mask, int type)
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{
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int i;
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int len = 0;
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char *debug_string;
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int element_count = 0;
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|
||||
gossip_debug(GOSSIP_UTILS_DEBUG, "%s: start\n", __func__);
|
||||
|
||||
if (type) {
|
||||
debug_string = client_debug_string;
|
||||
element_count = cdm_element_count;
|
||||
} else {
|
||||
debug_string = kernel_debug_string;
|
||||
element_count = num_kmod_keyword_mask_map;
|
||||
}
|
||||
|
||||
memset(debug_string, 0, ORANGEFS_MAX_DEBUG_STRING_LEN);
|
||||
|
||||
/*
|
||||
* Some keywords, like "all" or "verbose", are amalgams of
|
||||
* numerous other keywords. Make a special check for those
|
||||
* before grinding through the whole mask only to find out
|
||||
* later...
|
||||
*/
|
||||
if (check_amalgam_keyword(mask, type))
|
||||
goto out;
|
||||
|
||||
/* Build the debug string. */
|
||||
for (i = 0; i < element_count; i++)
|
||||
if (type)
|
||||
do_c_string(mask, i);
|
||||
else
|
||||
do_k_string(mask, i);
|
||||
|
||||
len = strlen(debug_string);
|
||||
|
||||
if ((len) && (type))
|
||||
client_debug_string[len - 1] = '\0';
|
||||
else if (len)
|
||||
kernel_debug_string[len - 1] = '\0';
|
||||
else if (type)
|
||||
strcpy(client_debug_string, "none");
|
||||
else
|
||||
strcpy(kernel_debug_string, "none");
|
||||
|
||||
out:
|
||||
gossip_debug(GOSSIP_UTILS_DEBUG, "%s: string:%s:\n", __func__, debug_string);
|
||||
|
||||
return;
|
||||
|
||||
}
|
||||
|
||||
static void do_k_string(void *k_mask, int index)
|
||||
{
|
||||
__u64 *mask = (__u64 *) k_mask;
|
||||
|
||||
if (keyword_is_amalgam((char *) s_kmod_keyword_mask_map[index].keyword))
|
||||
goto out;
|
||||
|
||||
if (*mask & s_kmod_keyword_mask_map[index].mask_val) {
|
||||
if ((strlen(kernel_debug_string) +
|
||||
strlen(s_kmod_keyword_mask_map[index].keyword))
|
||||
< ORANGEFS_MAX_DEBUG_STRING_LEN - 1) {
|
||||
strcat(kernel_debug_string,
|
||||
s_kmod_keyword_mask_map[index].keyword);
|
||||
strcat(kernel_debug_string, ",");
|
||||
} else {
|
||||
gossip_err("%s: overflow!\n", __func__);
|
||||
strcpy(kernel_debug_string, ORANGEFS_ALL);
|
||||
goto out;
|
||||
}
|
||||
}
|
||||
|
||||
out:
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
static void do_c_string(void *c_mask, int index)
|
||||
{
|
||||
struct client_debug_mask *mask = (struct client_debug_mask *) c_mask;
|
||||
|
||||
if (keyword_is_amalgam(cdm_array[index].keyword))
|
||||
goto out;
|
||||
|
||||
if ((mask->mask1 & cdm_array[index].mask1) ||
|
||||
(mask->mask2 & cdm_array[index].mask2)) {
|
||||
if ((strlen(client_debug_string) +
|
||||
strlen(cdm_array[index].keyword) + 1)
|
||||
< ORANGEFS_MAX_DEBUG_STRING_LEN - 2) {
|
||||
strcat(client_debug_string,
|
||||
cdm_array[index].keyword);
|
||||
strcat(client_debug_string, ",");
|
||||
} else {
|
||||
gossip_err("%s: overflow!\n", __func__);
|
||||
strcpy(client_debug_string, ORANGEFS_ALL);
|
||||
goto out;
|
||||
}
|
||||
}
|
||||
out:
|
||||
return;
|
||||
}
|
||||
|
||||
static int keyword_is_amalgam(char *keyword)
|
||||
{
|
||||
int rc = 0;
|
||||
|
||||
if ((!strcmp(keyword, ORANGEFS_ALL)) || (!strcmp(keyword, ORANGEFS_VERBOSE)))
|
||||
rc = 1;
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
/*
|
||||
* kernel = type 0
|
||||
* client = type 1
|
||||
*
|
||||
* return 1 if we found an amalgam.
|
||||
*/
|
||||
static int check_amalgam_keyword(void *mask, int type)
|
||||
{
|
||||
__u64 *k_mask;
|
||||
struct client_debug_mask *c_mask;
|
||||
int k_all_index = num_kmod_keyword_mask_map - 1;
|
||||
int rc = 0;
|
||||
|
||||
if (type) {
|
||||
c_mask = (struct client_debug_mask *) mask;
|
||||
|
||||
if ((c_mask->mask1 == cdm_array[client_all_index].mask1) &&
|
||||
(c_mask->mask2 == cdm_array[client_all_index].mask2)) {
|
||||
strcpy(client_debug_string, ORANGEFS_ALL);
|
||||
rc = 1;
|
||||
goto out;
|
||||
}
|
||||
|
||||
if ((c_mask->mask1 == cdm_array[client_verbose_index].mask1) &&
|
||||
(c_mask->mask2 == cdm_array[client_verbose_index].mask2)) {
|
||||
strcpy(client_debug_string, ORANGEFS_VERBOSE);
|
||||
rc = 1;
|
||||
goto out;
|
||||
}
|
||||
|
||||
} else {
|
||||
k_mask = (__u64 *) mask;
|
||||
|
||||
if (*k_mask >= s_kmod_keyword_mask_map[k_all_index].mask_val) {
|
||||
strcpy(kernel_debug_string, ORANGEFS_ALL);
|
||||
rc = 1;
|
||||
goto out;
|
||||
}
|
||||
}
|
||||
|
||||
out:
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
/*
|
||||
* kernel = type 0
|
||||
* client = type 1
|
||||
*/
|
||||
static void debug_string_to_mask(char *debug_string, void *mask, int type)
|
||||
{
|
||||
char *unchecked_keyword;
|
||||
int i;
|
||||
char *strsep_fodder = kstrdup(debug_string, GFP_KERNEL);
|
||||
char *original_pointer;
|
||||
int element_count = 0;
|
||||
struct client_debug_mask *c_mask = NULL;
|
||||
__u64 *k_mask = NULL;
|
||||
|
||||
gossip_debug(GOSSIP_UTILS_DEBUG, "%s: start\n", __func__);
|
||||
|
||||
if (type) {
|
||||
c_mask = (struct client_debug_mask *)mask;
|
||||
element_count = cdm_element_count;
|
||||
} else {
|
||||
k_mask = (__u64 *)mask;
|
||||
*k_mask = 0;
|
||||
element_count = num_kmod_keyword_mask_map;
|
||||
}
|
||||
|
||||
original_pointer = strsep_fodder;
|
||||
while ((unchecked_keyword = strsep(&strsep_fodder, ",")))
|
||||
if (strlen(unchecked_keyword)) {
|
||||
for (i = 0; i < element_count; i++)
|
||||
if (type)
|
||||
do_c_mask(i,
|
||||
unchecked_keyword,
|
||||
&c_mask);
|
||||
else
|
||||
do_k_mask(i,
|
||||
unchecked_keyword,
|
||||
&k_mask);
|
||||
}
|
||||
|
||||
kfree(original_pointer);
|
||||
}
|
||||
|
||||
static void do_c_mask(int i, char *unchecked_keyword,
|
||||
struct client_debug_mask **sane_mask)
|
||||
{
|
||||
|
||||
if (!strcmp(cdm_array[i].keyword, unchecked_keyword)) {
|
||||
(**sane_mask).mask1 = (**sane_mask).mask1 | cdm_array[i].mask1;
|
||||
(**sane_mask).mask2 = (**sane_mask).mask2 | cdm_array[i].mask2;
|
||||
}
|
||||
}
|
||||
|
||||
static void do_k_mask(int i, char *unchecked_keyword, __u64 **sane_mask)
|
||||
{
|
||||
|
||||
if (!strcmp(s_kmod_keyword_mask_map[i].keyword, unchecked_keyword))
|
||||
**sane_mask = (**sane_mask) |
|
||||
s_kmod_keyword_mask_map[i].mask_val;
|
||||
}
|
||||
|
||||
int orangefs_debugfs_new_client_mask(void __user *arg)
|
||||
{
|
||||
struct dev_mask2_info_s mask2_info = {0};
|
||||
int ret;
|
||||
|
||||
ret = copy_from_user(&mask2_info,
|
||||
(void __user *)arg,
|
||||
sizeof(struct dev_mask2_info_s));
|
||||
|
||||
if (ret != 0)
|
||||
return -EIO;
|
||||
|
||||
client_debug_mask.mask1 = mask2_info.mask1_value;
|
||||
client_debug_mask.mask2 = mask2_info.mask2_value;
|
||||
|
||||
pr_info("%s: client debug mask has been been received "
|
||||
":%llx: :%llx:\n",
|
||||
__func__,
|
||||
(unsigned long long)client_debug_mask.mask1,
|
||||
(unsigned long long)client_debug_mask.mask2);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
int orangefs_debugfs_new_client_string(void __user *arg)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = copy_from_user(&client_debug_array_string,
|
||||
(void __user *)arg,
|
||||
ORANGEFS_MAX_DEBUG_STRING_LEN);
|
||||
if (ret != 0)
|
||||
return -EIO;
|
||||
|
||||
/*
|
||||
* The real client-core makes an effort to ensure
|
||||
* that actual strings that aren't too long to fit in
|
||||
* this buffer is what we get here. We're going to use
|
||||
* string functions on the stuff we got, so we'll make
|
||||
* this extra effort to try and keep from
|
||||
* flowing out of this buffer when we use the string
|
||||
* functions, even if somehow the stuff we end up
|
||||
* with here is garbage.
|
||||
*/
|
||||
client_debug_array_string[ORANGEFS_MAX_DEBUG_STRING_LEN - 1] =
|
||||
'\0';
|
||||
|
||||
if (ret != 0) {
|
||||
pr_info("%s: CLIENT_STRING: copy_from_user failed\n",
|
||||
__func__);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
pr_info("%s: client debug array string has been received.\n",
|
||||
__func__);
|
||||
|
||||
if (!help_string_initialized) {
|
||||
|
||||
/* Free the "we don't know yet" default string... */
|
||||
kfree(debug_help_string);
|
||||
|
||||
/* build a proper debug help string */
|
||||
if (orangefs_prepare_debugfs_help_string(0)) {
|
||||
gossip_err("%s: no debug help string \n",
|
||||
__func__);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
/* Replace the boilerplate boot-time debug-help file. */
|
||||
debugfs_remove(help_file_dentry);
|
||||
|
||||
help_file_dentry =
|
||||
debugfs_create_file(
|
||||
ORANGEFS_KMOD_DEBUG_HELP_FILE,
|
||||
0444,
|
||||
debug_dir,
|
||||
debug_help_string,
|
||||
&debug_help_fops);
|
||||
|
||||
if (!help_file_dentry) {
|
||||
gossip_err("%s: debugfs_create_file failed for"
|
||||
" :%s:!\n",
|
||||
__func__,
|
||||
ORANGEFS_KMOD_DEBUG_HELP_FILE);
|
||||
return -EIO;
|
||||
}
|
||||
}
|
||||
|
||||
debug_mask_to_string(&client_debug_mask, 1);
|
||||
|
||||
debugfs_remove(client_debug_dentry);
|
||||
|
||||
orangefs_client_debug_init();
|
||||
|
||||
help_string_initialized++;
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
int orangefs_debugfs_new_debug(void __user *arg)
|
||||
{
|
||||
struct dev_mask_info_s mask_info = {0};
|
||||
int ret;
|
||||
|
||||
ret = copy_from_user(&mask_info,
|
||||
(void __user *)arg,
|
||||
sizeof(mask_info));
|
||||
|
||||
if (ret != 0)
|
||||
return -EIO;
|
||||
|
||||
if (mask_info.mask_type == KERNEL_MASK) {
|
||||
if ((mask_info.mask_value == 0)
|
||||
&& (kernel_mask_set_mod_init)) {
|
||||
/*
|
||||
* the kernel debug mask was set when the
|
||||
* kernel module was loaded; don't override
|
||||
* it if the client-core was started without
|
||||
* a value for ORANGEFS_KMODMASK.
|
||||
*/
|
||||
return 0;
|
||||
}
|
||||
debug_mask_to_string(&mask_info.mask_value,
|
||||
mask_info.mask_type);
|
||||
orangefs_gossip_debug_mask = mask_info.mask_value;
|
||||
pr_info("%s: kernel debug mask has been modified to "
|
||||
":%s: :%llx:\n",
|
||||
__func__,
|
||||
kernel_debug_string,
|
||||
(unsigned long long)orangefs_gossip_debug_mask);
|
||||
} else if (mask_info.mask_type == CLIENT_MASK) {
|
||||
debug_mask_to_string(&mask_info.mask_value,
|
||||
mask_info.mask_type);
|
||||
pr_info("%s: client debug mask has been modified to"
|
||||
":%s: :%llx:\n",
|
||||
__func__,
|
||||
client_debug_string,
|
||||
llu(mask_info.mask_value));
|
||||
} else {
|
||||
gossip_lerr("Invalid mask type....\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue