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linux 5.4 compat: page_size()

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Before 5.4 we have to do a little math.

Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Closes #15533
Closes #15588
(cherry picked from commit df04efe321)
This commit is contained in:
Rob Norris
2023-11-13 17:55:29 +11:00
committed by Brian Behlendorf
parent 58211157bf
commit 220bb7341e
4 changed files with 56 additions and 0 deletions
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config/kernel-mm-page-size.m4
+17
View File
@@ -0,0 +1,17 @@
AC_DEFUN([ZFS_AC_KERNEL_SRC_MM_PAGE_SIZE], [
ZFS_LINUX_TEST_SRC([page_size], [
#include <linux/mm.h>
],[
unsigned long s;
s = page_size(NULL);
])
])
AC_DEFUN([ZFS_AC_KERNEL_MM_PAGE_SIZE], [
AC_MSG_CHECKING([whether page_size() is available])
ZFS_LINUX_TEST_RESULT([page_size], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_MM_PAGE_SIZE, 1, [page_size() is available])
],[
AC_MSG_RESULT(no)
])
])
config/kernel.m4
+2
View File
@@ -167,6 +167,7 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_SRC], [
ZFS_AC_KERNEL_SRC_REGISTER_SYSCTL_TABLE
ZFS_AC_KERNEL_SRC_COPY_SPLICE_READ
ZFS_AC_KERNEL_SRC_SYNC_BDEV
ZFS_AC_KERNEL_SRC_MM_PAGE_SIZE
case "$host_cpu" in
powerpc*)
ZFS_AC_KERNEL_SRC_CPU_HAS_FEATURE
@@ -316,6 +317,7 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_RESULT], [
ZFS_AC_KERNEL_REGISTER_SYSCTL_TABLE
ZFS_AC_KERNEL_COPY_SPLICE_READ
ZFS_AC_KERNEL_SYNC_BDEV
ZFS_AC_KERNEL_MM_PAGE_SIZE
case "$host_cpu" in
powerpc*)
ZFS_AC_KERNEL_CPU_HAS_FEATURE