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Update link to refer to the correct line number
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@ -316,7 +316,7 @@ Heap initialization
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After the stack and bss section were prepared in [header.S](https://github.com/torvalds/linux/blob/16f73eb02d7e1765ccab3d2018e0bd98eb93d973/arch/x86/boot/header.S) (see previous [part](linux-bootstrap-1.md)), the kernel needs to initialize the [heap](https://github.com/torvalds/linux/blob/16f73eb02d7e1765ccab3d2018e0bd98eb93d973/arch/x86/boot/main.c#L116) with the [`init_heap`](https://github.com/torvalds/linux/blob/16f73eb02d7e1765ccab3d2018e0bd98eb93d973/arch/x86/boot/main.c#L116) function.
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First of all `init_heap` checks the [`CAN_USE_HEAP`](https://github.com/torvalds/linux/blob/16f73eb02d7e1765ccab3d2018e0bd98eb93d973/arch/x86/include/uapi/asm/bootparam.h#L21) flag from the [`loadflags`](https://github.com/torvalds/linux/blob/16f73eb02d7e1765ccab3d2018e0bd98eb93d973/arch/x86/boot/header.S#L321) in the kernel setup header and calculates the end of the stack if this flag was set:
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First of all `init_heap` checks the [`CAN_USE_HEAP`](https://github.com/torvalds/linux/blob/16f73eb02d7e1765ccab3d2018e0bd98eb93d973/arch/x86/include/uapi/asm/bootparam.h#L22) flag from the [`loadflags`](https://github.com/torvalds/linux/blob/16f73eb02d7e1765ccab3d2018e0bd98eb93d973/arch/x86/boot/header.S#L321) in the kernel setup header and calculates the end of the stack if this flag was set:
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```C
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char *stack_end;
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