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The `pgprot` argument has been removed from `__vmalloc` in Linux 5.8,
being `PAGE_KERNEL` always now [1].
Detect this during configure and define a wrapper for older kernels.
[1] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/mm/vmalloc.c?h=next-20200605&id=88dca4ca5a93d2c09e5bbc6a62fbfc3af83c4fca
Reviewed-by: Brian Behlendorf <[email protected]>
Co-authored-by: Sebastian Gottschall <[email protected]>
Co-authored-by: Michael Niewöhner <[email protected]>
Signed-off-by: Sebastian Gottschall <[email protected]>
Signed-off-by: Michael Niewöhner <[email protected]>
Closes #10422
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This patch implements use of kvmalloc for GFP_KERNEL allocations, which
may increase performance if the allocator is able to allocate physical
memory, if kvmalloc is available as a public kernel interface (since
v4.12). Otherwise it will simply fall back to virtual memory (vmalloc).
Also fix vmem_alloc implementation which can lead to slow allocations
since the first attempt with kmalloc does not make use of the noretry
flag but tells the linux kernel to retry several times before it fails.
Reviewed-by: Brian Behlendorf <[email protected]>
Reviewed-by: Matt Ahrens <[email protected]>
Signed-off-by: Sebastian Gottschall <[email protected]>
Signed-off-by: Michael Niewöhner <[email protected]>
Closes #9034
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This commit removes everything from the repository except the core
SPL implementation for Linux. Those files which remain have been
moved to non-conflicting locations to facilitate the merge.
The README.md and associated files have been updated accordingly.
Signed-off-by: Brian Behlendorf <[email protected]>
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