-/**
- * Set the verbosity of the warnings and error messages.
- *
- * Note that the names can only be a..z or _ with the current code.
- */
-
-static struct {
- char *mask_name;
- unsigned mask_bitfield;
-} mask_flags[] = {
- {"allocate", YAFFS_TRACE_ALLOCATE},
- {"always", YAFFS_TRACE_ALWAYS},
- {"background", YAFFS_TRACE_BACKGROUND},
- {"bad_blocks", YAFFS_TRACE_BAD_BLOCKS},
- {"buffers", YAFFS_TRACE_BUFFERS},
- {"bug", YAFFS_TRACE_BUG},
- {"checkpt", YAFFS_TRACE_CHECKPOINT},
- {"deletion", YAFFS_TRACE_DELETION},
- {"erase", YAFFS_TRACE_ERASE},
- {"error", YAFFS_TRACE_ERROR},
- {"gc_detail", YAFFS_TRACE_GC_DETAIL},
- {"gc", YAFFS_TRACE_GC},
- {"lock", YAFFS_TRACE_LOCK},
- {"mtd", YAFFS_TRACE_MTD},
- {"nandaccess", YAFFS_TRACE_NANDACCESS},
- {"os", YAFFS_TRACE_OS},
- {"scan_debug", YAFFS_TRACE_SCAN_DEBUG},
- {"scan", YAFFS_TRACE_SCAN},
- {"mount", YAFFS_TRACE_MOUNT},
- {"tracing", YAFFS_TRACE_TRACING},
- {"sync", YAFFS_TRACE_SYNC},
- {"write", YAFFS_TRACE_WRITE},
- {"verify", YAFFS_TRACE_VERIFY},
- {"verify_nand", YAFFS_TRACE_VERIFY_NAND},
- {"verify_full", YAFFS_TRACE_VERIFY_FULL},
- {"verify_all", YAFFS_TRACE_VERIFY_ALL},
- {"all", 0xffffffff},
- {"none", 0},
- {NULL, 0},
-};
-
-#define MAX_MASK_NAME_LENGTH 40
-static int yaffs_proc_write_trace_options(struct file *file, const char *buf,
- unsigned long count, void *data)
-{
- unsigned rg = 0, mask_bitfield;
- char *end;
- char *mask_name;
- const char *x;
- char substring[MAX_MASK_NAME_LENGTH + 1];
- int i;
- int done = 0;
- int add, len = 0;
- int pos = 0;
-
- rg = yaffs_trace_mask;
-
- while (!done && (pos < count)) {
- done = 1;
- while ((pos < count) && isspace(buf[pos]))
- pos++;
-
- switch (buf[pos]) {
- case '+':
- case '-':
- case '=':
- add = buf[pos];
- pos++;
- break;
-
- default:
- add = ' ';
- break;
- }
- mask_name = NULL;
-
- mask_bitfield = simple_strtoul(buf + pos, &end, 0);
-
- if (end > buf + pos) {
- mask_name = "numeral";
- len = end - (buf + pos);
- pos += len;
- done = 0;
- } else {
- for (x = buf + pos, i = 0;
- (*x == '_' || (*x >= 'a' && *x <= 'z')) &&
- i < MAX_MASK_NAME_LENGTH; x++, i++, pos++)
- substring[i] = *x;
- substring[i] = '\0';
-
- for (i = 0; mask_flags[i].mask_name != NULL; i++) {
- if (strcmp(substring, mask_flags[i].mask_name)
- == 0) {
- mask_name = mask_flags[i].mask_name;
- mask_bitfield =
- mask_flags[i].mask_bitfield;
- done = 0;
- break;
- }
- }
- }
-
- if (mask_name != NULL) {
- done = 0;
- switch (add) {
- case '-':
- rg &= ~mask_bitfield;
- break;
- case '+':
- rg |= mask_bitfield;
- break;
- case '=':
- rg = mask_bitfield;
- break;
- default:
- rg |= mask_bitfield;
- break;
- }
- }
- }
-
- yaffs_trace_mask = rg | YAFFS_TRACE_ALWAYS;
-
- printk(KERN_DEBUG "new trace = 0x%08X\n", yaffs_trace_mask);
-
- if (rg & YAFFS_TRACE_ALWAYS) {
- for (i = 0; mask_flags[i].mask_name != NULL; i++) {
- char flag;
- flag = ((rg & mask_flags[i].mask_bitfield) ==
- mask_flags[i].mask_bitfield) ? '+' : '-';
- printk(KERN_DEBUG "%c%s\n", flag,
- mask_flags[i].mask_name);
- }
- }
-
- return count;
-}
-
-static int yaffs_proc_write(struct file *file, const char *buf,
- unsigned long count, void *data)
-{
- return yaffs_proc_write_trace_options(file, buf, count, data);
-}
projects / yaffs2.git / commitdiff