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rammap:Adjust the lower two bits to represent type

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Summary:
  In rammap:
   1.0 - User
   2.1 - Kernel
   3.2 - XIP
  Therefore we need to use 2 bits to represent the type

Signed-off-by: chenrun1 <chenrun1@xiaomi.com>
This commit is contained in:
chenrun1 2024-06-20 20:11:33 +08:00 committed by Xiang Xiao
parent c9148fbb0a
commit 250353240c
1 changed files with 3 additions and 3 deletions
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6
fs/mmap/fs_rammap.c
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@ -56,7 +56,7 @@
static int msync_rammap(FAR struct mm_map_entry_s *entry, FAR void *start,
size_t length, int flags)
{
FAR struct file *filep = (FAR void *)((uintptr_t)entry->priv.p & ~1);
FAR struct file *filep = (FAR void *)((uintptr_t)entry->priv.p & ~3);
FAR uint8_t *wrbuffer = start;
ssize_t nwrite = 0;
off_t offset;
@ -123,8 +123,8 @@ static int unmap_rammap(FAR struct task_group_s *group,
FAR void *start,
size_t length)
{
FAR struct file *filep = (FAR void *)((uintptr_t)entry->priv.p & ~1);
enum mm_map_type_e type = (uintptr_t)entry->priv.p & 1;
FAR struct file *filep = (FAR void *)((uintptr_t)entry->priv.p & ~3);
enum mm_map_type_e type = (uintptr_t)entry->priv.p & 3;
FAR void *newaddr = NULL;
off_t offset;
int ret = OK;