summaryrefslogtreecommitdiff
path: root/include/linux/scatterlist.h
diff options
context:
space:
mode:
authorHugh Dickins <hugh@veritas.com>2007-10-25 09:55:05 +0200
committerJens Axboe <jens.axboe@oracle.com>2007-10-25 09:55:05 +0200
commit85cdffcde0b6b831a06422413300d0f5c0e608c3 (patch)
treebae2a4271544d1464918cb86a91ed837cedc4a4f /include/linux/scatterlist.h
parent4f33a9d9a416313f0ecf6e6953d205385a431cd5 (diff)
fix sg_phys to use dma_addr_t
x86_32 CONFIG_HIGHMEM64G with 5GB RAM hung when booting, after issuing some "request_module: runaway loop modprobe binfmt-0000" messages in trying to exec /sbin/init. The binprm buf doesn't see the right ".ELF" header because sg_phys() is providing the wrong physical addresses for high pages: a 32-bit unsigned long is too small in this case, we need to use dma_addr_t. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'include/linux/scatterlist.h')
-rw-r--r--include/linux/scatterlist.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h
index 809b2ac2e37e..457123171389 100644
--- a/include/linux/scatterlist.h
+++ b/include/linux/scatterlist.h
@@ -1,6 +1,7 @@
#ifndef _LINUX_SCATTERLIST_H
#define _LINUX_SCATTERLIST_H
+#include <asm/types.h>
#include <asm/scatterlist.h>
#include <linux/mm.h>
#include <linux/string.h>
@@ -255,7 +256,7 @@ static inline void sg_init_table(struct scatterlist *sgl, unsigned int nents)
* on the sg page.
*
**/
-static inline unsigned long sg_phys(struct scatterlist *sg)
+static inline dma_addr_t sg_phys(struct scatterlist *sg)
{
return page_to_phys(sg_page(sg)) + sg->offset;
}