All merged into master, 2.11, 2.10, 2.9, thanks!
Mathieu
----- On Mar 18, 2019, at 4:20 PM, Michael Jeanson mjean...@efficios.com wrote:
> See upstream commit:
>
> commit 3d3539018d2cbd12e5af4a132636ee7fd8d43ef0
> Author: Souptick Joarder <jrdr.li...@gmail.com>
> Date: Thu Mar 7 16:31:14 2019 -0800
>
> mm: create the new vm_fault_t type
>
> Page fault handlers are supposed to return VM_FAULT codes, but some
> drivers/file systems mistakenly return error numbers. Now that all
> drivers/file systems have been converted to use the vm_fault_t return
> type, change the type definition to no longer be compatible with 'int'.
> By making it an unsigned int, the function prototype becomes
> incompatible with a function which returns int. Sparse will detect any
> attempts to return a value which is not a VM_FAULT code.
>
> VM_FAULT_SET_HINDEX and VM_FAULT_GET_HINDEX values are changed to avoid
> conflict with other VM_FAULT codes.
> ---
> lib/ringbuffer/ring_buffer_mmap.c | 12 +++++++++++-
> 1 file changed, 11 insertions(+), 1 deletion(-)
>
> diff --git a/lib/ringbuffer/ring_buffer_mmap.c
> b/lib/ringbuffer/ring_buffer_mmap.c
> index 30dd93e..fab9458 100644
> --- a/lib/ringbuffer/ring_buffer_mmap.c
> +++ b/lib/ringbuffer/ring_buffer_mmap.c
> @@ -20,7 +20,11 @@
> /*
> * fault() vm_op implementation for ring buffer file mapping.
> */
> +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,1,0))
> +static vm_fault_t lib_ring_buffer_fault_compat(struct vm_area_struct *vma,
> struct vm_fault *vmf)
> +#else
> static int lib_ring_buffer_fault_compat(struct vm_area_struct *vma, struct
> vm_fault *vmf)
> +#endif
> {
> struct lib_ring_buffer *buf = vma->vm_private_data;
> struct channel *chan = buf->backend.chan;
> @@ -53,7 +57,13 @@ static int lib_ring_buffer_fault_compat(struct
> vm_area_struct
> *vma, struct vm_fa
> return 0;
> }
>
> -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,11,0))
> +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,1,0))
> +static vm_fault_t lib_ring_buffer_fault(struct vm_fault *vmf)
> +{
> + struct vm_area_struct *vma = vmf->vma;
> + return lib_ring_buffer_fault_compat(vma, vmf);
> +}
> +#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,11,0))
> static int lib_ring_buffer_fault(struct vm_fault *vmf)
> {
> struct vm_area_struct *vma = vmf->vma;
> --
> 2.17.1
--
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com
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