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Add checks for RHEL8.8 #13

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Add checks for RHEL8.8 #13

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10 changes: 9 additions & 1 deletion memflow-kmod/mmap_lock.h
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,15 @@

#include <linux/version.h>

#if LINUX_VERSION_CODE < KERNEL_VERSION(5,8,0)
#ifndef RHEL_RELEASE_CODE
#define RHEL_RELEASE_CODE 0
#endif

#ifndef RHEL_RELEASE_VERSION
#define RHEL_RELEASE_VERSION(a,b) 1
#endif

#if LINUX_VERSION_CODE < KERNEL_VERSION(5,8,0) && RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(8,8)
static inline void mmap_write_lock(struct mm_struct *mm)
{
down_write(&mm->mmap_sem);
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8 changes: 4 additions & 4 deletions memflow-kmod/vmtools.c
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Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@
#include <linux/version.h>
#include "mmap_lock.h"

#if LINUX_VERSION_CODE < KERNEL_VERSION(5,17,0)
#if LINUX_VERSION_CODE < KERNEL_VERSION(5,17,0) && RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(8,8)
#define kvm_for_each_memslot2(memslot, bkt, slots) (void)bkt; kvm_for_each_memslot(memslot, slots)
#else
#define kvm_for_each_memslot2 kvm_for_each_memslot
Expand Down Expand Up @@ -203,11 +203,11 @@ struct vm_mem_data {
#define PAGE_GET_FLAG 0
#endif

#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,7,0)
#define RELEASE_PAGE put_page
#else
#if LINUX_VERSION_CODE < KERNEL_VERSION(5,7,0) && RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(8,8)
#define PAGE_GET_FLAG 0
#define RELEASE_PAGE put_user_page
#else
#define RELEASE_PAGE put_page
#endif

static int memflow_vm_mem_release(struct inode *inode, struct file *file)
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