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Use kmap_local_page instead of kmap_atomic (#16329)

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Changed zfs_k(un)map_atomic to zfs_k(un)map_local

Signed-off-by: Jason Lee <jasonlee@lanl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Atkinson <batkinson@lanl.gov>
This commit is contained in:
Jason Lee
2024-07-16 18:27:29 -06:00
committed by Tony Hutter
parent cf80a803d5
commit 4f0a8eb7c1
5 changed files with 41 additions and 10 deletions
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config/kernel-kmap-local-page.m4
+23
View File
@@ -0,0 +1,23 @@
dnl #
dnl # 5.11 API change
dnl # kmap_atomic() was deprecated in favor of kmap_local_page()
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_KMAP_LOCAL_PAGE], [
ZFS_LINUX_TEST_SRC([kmap_local_page], [
#include <linux/highmem.h>
],[
struct page page;
kmap_local_page(&page);
])
])
AC_DEFUN([ZFS_AC_KERNEL_KMAP_LOCAL_PAGE], [
AC_MSG_CHECKING([whether kmap_local_page exists])
ZFS_LINUX_TEST_RESULT([kmap_local_page], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_KMAP_LOCAL_PAGE, 1,
[kernel has kmap_local_page])
],[
AC_MSG_RESULT(no)
])
])
config/kernel.m4
+2
View File
@@ -123,6 +123,7 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_SRC], [
ZFS_AC_KERNEL_SRC_VFS_DEDUPE_FILE_RANGE
ZFS_AC_KERNEL_SRC_VFS_FILE_OPERATIONS_EXTEND
ZFS_AC_KERNEL_SRC_KMAP_ATOMIC_ARGS
ZFS_AC_KERNEL_SRC_KMAP_LOCAL_PAGE
ZFS_AC_KERNEL_SRC_FOLLOW_DOWN_ONE
ZFS_AC_KERNEL_SRC_MAKE_REQUEST_FN
ZFS_AC_KERNEL_SRC_GENERIC_IO_ACCT
@@ -274,6 +275,7 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_RESULT], [
ZFS_AC_KERNEL_VFS_DEDUPE_FILE_RANGE
ZFS_AC_KERNEL_VFS_FILE_OPERATIONS_EXTEND
ZFS_AC_KERNEL_KMAP_ATOMIC_ARGS
ZFS_AC_KERNEL_KMAP_LOCAL_PAGE
ZFS_AC_KERNEL_FOLLOW_DOWN_ONE
ZFS_AC_KERNEL_MAKE_REQUEST_FN
ZFS_AC_KERNEL_GENERIC_IO_ACCT