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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2025-02-25 16:03:25 -0800
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2025-02-25 16:03:25 -0800
commit0b119045b79a672bc6d8f18641c60fc8ce1b4585 (patch)
tree69c63ecfec55b9576c34dc742e0c38f46f8a317a /kernel/debug/kdb/kdb_support.c
parent7f7573bd4f37d4edc168c5b5def0bc2a1951c657 (diff)
parentd082ecbc71e9e0bf49883ee4afd435a77a5101b6 (diff)
Merge tag 'v6.14-rc4' into next
Sync up with the mainline.
Diffstat (limited to 'kernel/debug/kdb/kdb_support.c')
-rw-r--r--kernel/debug/kdb/kdb_support.c24
1 files changed, 3 insertions, 21 deletions
diff --git a/kernel/debug/kdb/kdb_support.c b/kernel/debug/kdb/kdb_support.c
index 0a39497140bfb..05b137e7dcb95 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];
-}