nathan/Chromebook-Device-Nyan-NVIDIA-Tegra-K1-T124-Upstream-Linux-3.10-LTS-Kernel
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Updated from Linux LTS 3.10.21 to 3.10.22

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Nathan
2025-04-07 10:16:56 -05:00
parent 8de512f759
commit fb417c8ab5
200 changed files with 2126 additions and 770 deletions
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17
drivers/staging/zsmalloc/zsmalloc-main.c
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@@ -430,7 +430,12 @@ static struct page *get_next_page(struct page *page)
return next;
}
/* Encode <page, obj_idx> as a single handle value */
/*
* Encode <page, obj_idx> as a single handle value.
* On hardware platforms with physical memory starting at 0x0 the pfn
* could be 0 so we ensure that the handle will never be 0 by adjusting the
* encoded obj_idx value before encoding.
*/
static void *obj_location_to_handle(struct page *page, unsigned long obj_idx)
{
unsigned long handle;
@@ -441,17 +446,21 @@ static void *obj_location_to_handle(struct page *page, unsigned long obj_idx)
}
handle = page_to_pfn(page) << OBJ_INDEX_BITS;
handle |= (obj_idx & OBJ_INDEX_MASK);
handle |= ((obj_idx + 1) & OBJ_INDEX_MASK);
return (void *)handle;
}
/* Decode <page, obj_idx> pair from the given object handle */
/*
* Decode <page, obj_idx> pair from the given object handle. We adjust the
* decoded obj_idx back to its original value since it was adjusted in
* obj_location_to_handle().
*/
static void obj_handle_to_location(unsigned long handle, struct page **page,
unsigned long *obj_idx)
{
*page = pfn_to_page(handle >> OBJ_INDEX_BITS);
*obj_idx = handle & OBJ_INDEX_MASK;
*obj_idx = (handle & OBJ_INDEX_MASK) - 1;
}
static unsigned long obj_idx_to_offset(struct page *page,