fs/v9fs: Add KERNEL build support #18345
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For Kernel build, the va should not use for virtio transfer Signed-off-by: chenrun1 <chenrun1@xiaomi.com>
The physic memory is not contiguous, need every page do up_addrenv_va_to_pa The void * += may less compatible, we should use char*. Signed-off-by: buxiasen <buxiasen@xiaomi.com>
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Area: File System
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simbit18
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acassis,
linguini1,
raiden00pl and
xiaoxiang781216
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Summary
Please see #18343
This PR adds VirtIO 9P filesystem (v9fs) support for BUILD_KERNEL.
Fix mmu/virtual memory cause v9fs break in kernel build.
Fix not continuously physical memory cause virtio v9fs client break.
Impact
v9fs able to work with build_kernel after patch.
Testing
ci test, test by #18343