The patch titled
Subject: fs/coredump: use kmap_local_page()
has been removed from the -mm tree. Its filename was
fs-coredump-use-kmap_local_page.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Ira Weiny <ira.weiny@xxxxxxxxx>
Subject: fs/coredump: use kmap_local_page()
In dump_user_range() there is no reason for the mapping to be global. Use
kmap_local_page() rather than kmap.
Link: https://lkml.kernel.org/r/20210203223328.558945-1-ira.weiny@xxxxxxxxx
Signed-off-by: Ira Weiny <ira.weiny@xxxxxxxxx>
Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/coredump.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/fs/coredump.c~fs-coredump-use-kmap_local_page
+++ a/fs/coredump.c
@@ -897,10 +897,10 @@ int dump_user_range(struct coredump_para
*/
page = get_dump_page(addr);
if (page) {
- void *kaddr = kmap(page);
+ void *kaddr = kmap_local_page(page);
stop = !dump_emit(cprm, kaddr, PAGE_SIZE);
- kunmap(page);
+ kunmap_local(kaddr);
put_page(page);
} else {
stop = !dump_skip(cprm, PAGE_SIZE);
_
Patches currently in -mm which might be from ira.weiny@xxxxxxxxx are
mm-highmem-remove-deprecated-kmap_atomic.patch
