diff options
Diffstat (limited to 'kernel/debug/kdb/kdb_support.c')
| -rw-r--r-- | kernel/debug/kdb/kdb_support.c | 24 |
1 files changed, 3 insertions, 21 deletions
diff --git a/kernel/debug/kdb/kdb_support.c b/kernel/debug/kdb/kdb_support.c index 0a39497140bf..05b137e7dcb9 100644 --- a/kernel/debug/kdb/kdb_support.c +++ b/kernel/debug/kdb/kdb_support.c @@ -305,7 +305,7 @@ int kdb_putarea_size(unsigned long addr, void *res, size_t size) /* * kdb_getphys - Read data from a physical address. Validate the - * address is in range, use kmap_atomic() to get data + * address is in range, use kmap_local_page() to get data * similar to kdb_getarea() - but for phys addresses * Inputs: * res Pointer to the word to receive the result @@ -324,9 +324,9 @@ static int kdb_getphys(void *res, unsigned long addr, size_t size) if (!pfn_valid(pfn)) return 1; page = pfn_to_page(pfn); - vaddr = kmap_atomic(page); + vaddr = kmap_local_page(page); memcpy(res, vaddr + (addr & (PAGE_SIZE - 1)), size); - kunmap_atomic(vaddr); + kunmap_local(vaddr); return 0; } @@ -536,21 +536,3 @@ bool kdb_task_state(const struct task_struct *p, const char *mask) return strchr(mask, state); } - -/* Maintain a small stack of kdb_flags to allow recursion without disturbing - * the global kdb state. - */ - -static int kdb_flags_stack[4], kdb_flags_index; - -void kdb_save_flags(void) -{ - BUG_ON(kdb_flags_index >= ARRAY_SIZE(kdb_flags_stack)); - kdb_flags_stack[kdb_flags_index++] = kdb_flags; -} - -void kdb_restore_flags(void) -{ - BUG_ON(kdb_flags_index <= 0); - kdb_flags = kdb_flags_stack[--kdb_flags_index]; -} |