Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
um: Use PAGE_ALIGN() for address alignment
Use PAGE_ALIGN() instead of open-coded calculations.
Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
Link: https://patch.msgid.link/20251027054519.1996090-3-tiwei.bie@linux.dev
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
authored by
Tiwei Bie
and committed by
Johannes Berg
de203267
691ff591
+3
-6
+3
-6
arch/um/kernel/um_arch.c
+3
-6
arch/um/kernel/um_arch.c
···
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top_addr = (unsigned long) envp[i];
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}
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top_addr &= ~(UM_KERN_PAGE_SIZE - 1);
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top_addr += UM_KERN_PAGE_SIZE;
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-
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return top_addr;
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+
return PAGE_ALIGN(top_addr + 1);
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}
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int __init linux_main(int argc, char **argv, char **envp)
···
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setup_machinename(init_utsname()->machine);
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physmem_size = (physmem_size + PAGE_SIZE - 1) & PAGE_MASK;
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iomem_size = (iomem_size + PAGE_SIZE - 1) & PAGE_MASK;
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physmem_size = PAGE_ALIGN(physmem_size);
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iomem_size = PAGE_ALIGN(iomem_size);
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max_physmem = TASK_SIZE - uml_physmem - iomem_size - MIN_VMALLOC;
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if (physmem_size > max_physmem) {