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config: remove HAVE_KVMALLOC

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Sponsored-by: https://despairlabs.com/sponsor/
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Tino Reichardt <milky-zfs@mcmilk.de>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Closes #16479
This commit is contained in:
Rob Norris 2024-08-24 20:57:00 +10:00 committed by Brian Behlendorf
parent f95d76cc28
commit 6e625bd7bd
3 changed files with 1 additions and 30 deletions
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27
config/kernel-kmem.m4
View File

@ -57,31 +57,6 @@ AC_DEFUN([SPL_AC_DEBUG_KMEM_TRACKING], [
AC_MSG_RESULT([$enable_debug_kmem_tracking])
])
dnl #
dnl # 4.12 API,
dnl # Added kvmalloc allocation strategy
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_KVMALLOC], [
ZFS_LINUX_TEST_SRC([kvmalloc], [
#include <linux/mm.h>
#include <linux/slab.h>
],[
void *p __attribute__ ((unused));
p = kvmalloc(0, GFP_KERNEL);
])
])
AC_DEFUN([ZFS_AC_KERNEL_KVMALLOC], [
AC_MSG_CHECKING([whether kvmalloc(ptr, flags) is available])
ZFS_LINUX_TEST_RESULT([kvmalloc], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_KVMALLOC, 1, [kvmalloc exists])
],[
AC_MSG_RESULT(no)
])
])
dnl #
dnl # 5.8 API,
dnl # __vmalloc PAGE_KERNEL removal
@ -106,4 +81,4 @@ AC_DEFUN([ZFS_AC_KERNEL_VMALLOC_PAGE_KERNEL], [
AC_MSG_RESULT(no)
])
])
-
-

2
config/kernel.m4
View File

@ -45,7 +45,6 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_SRC], [
ZFS_AC_KERNEL_SRC_GENERIC_FADVISE
ZFS_AC_KERNEL_SRC_SCHED
ZFS_AC_KERNEL_SRC_USLEEP_RANGE
ZFS_AC_KERNEL_SRC_KVMALLOC
ZFS_AC_KERNEL_SRC_VMALLOC_PAGE_KERNEL
ZFS_AC_KERNEL_SRC_WAIT
ZFS_AC_KERNEL_SRC_INODE_TIMES
@ -162,7 +161,6 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_RESULT], [
ZFS_AC_KERNEL_GENERIC_FADVISE
ZFS_AC_KERNEL_SCHED
ZFS_AC_KERNEL_USLEEP_RANGE
ZFS_AC_KERNEL_KVMALLOC
ZFS_AC_KERNEL_VMALLOC_PAGE_KERNEL
ZFS_AC_KERNEL_WAIT
ZFS_AC_KERNEL_INODE_TIMES

2
module/os/linux/spl/spl-kmem.c
View File

@ -134,7 +134,6 @@ EXPORT_SYMBOL(kmem_strfree);
void *
spl_kvmalloc(size_t size, gfp_t lflags)
{
#ifdef HAVE_KVMALLOC
/*
* GFP_KERNEL allocations can safely use kvmalloc which may
* improve performance by avoiding a) high latency caused by
@ -146,7 +145,6 @@ spl_kvmalloc(size_t size, gfp_t lflags)
*/
if ((lflags & GFP_KERNEL) == GFP_KERNEL)
return (kvmalloc(size, lflags));
#endif
gfp_t kmalloc_lflags = lflags;