---

yaml --- r: 5193 b: refs/heads/master c: e77e171 h: refs/heads/master i: 5191: 932efea v: v3
git-mirror · Jul 27, 2005 · 3d364d9 · 3d364d9
1 parent ed8123f
commit 3d364d9
Show file tree

Hide file tree

Showing 2 changed files with 11 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d9fd8a6d443b509147280f058d4e59f0b796a323
+refs/heads/master: e77e17161ccb8bd877bf83b3611cd318e451c605
diff --git a/trunk/kernel/crash_dump.c b/trunk/kernel/crash_dump.c
@@ -18,7 +18,16 @@
 /* Stores the physical address of elf header of crash image. */
 unsigned long long elfcorehdr_addr = ELFCORE_ADDR_MAX;
 
-/*
+/**
+ * copy_oldmem_page - copy one page from "oldmem"
+ * @pfn: page frame number to be copied
+ * @buf: target memory address for the copy; this can be in kernel address
+ *	space or user address space (see @userbuf)
+ * @csize: number of bytes to copy
+ * @offset: offset in bytes into the page (based on pfn) to begin the copy
+ * @userbuf: if set, @buf is in user address space, use copy_to_user(),
+ *	otherwise @buf is in kernel address space, use memcpy().
+ *
  * Copy a page from "oldmem". For this page, there is no pte mapped
  * in the current kernel. We stitch up a pte, similar to kmap_atomic.
  */