Remove some redundant assignments and computations.
Reported by: alc Reviewed by: alc, kib Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D25400
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3507b8d467
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=362739
@ -199,7 +199,7 @@ linux_get_user_pages_internal(vm_map_t map, unsigned long start, int nr_pages,
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int count;
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prot = write ? (VM_PROT_READ | VM_PROT_WRITE) : VM_PROT_READ;
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len = ((size_t)nr_pages) << PAGE_SHIFT;
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len = ptoa((vm_offset_t)nr_pages);
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count = vm_fault_quick_hold_pages(map, start, len, prot, pages, nr_pages);
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return (count == -1 ? -EFAULT : nr_pages);
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}
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@ -219,9 +219,8 @@ __get_user_pages_fast(unsigned long start, int nr_pages, int write,
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return (0);
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MPASS(pages != NULL);
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va = start;
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map = &curthread->td_proc->p_vmspace->vm_map;
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end = start + (((size_t)nr_pages) << PAGE_SHIFT);
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end = start + ptoa((vm_offset_t)nr_pages);
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if (!vm_map_range_valid(map, start, end))
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return (-EINVAL);
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prot = write ? (VM_PROT_READ | VM_PROT_WRITE) : VM_PROT_READ;
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@ -1561,8 +1561,8 @@ mdresize(struct md_s *sc, struct md_req *mdr)
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if (mdr->md_mediasize <= 0 ||
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(mdr->md_mediasize % PAGE_SIZE) != 0)
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return (EDOM);
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oldpages = OFF_TO_IDX(round_page(sc->mediasize));
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newpages = OFF_TO_IDX(round_page(mdr->md_mediasize));
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oldpages = OFF_TO_IDX(sc->mediasize);
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newpages = OFF_TO_IDX(mdr->md_mediasize);
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if (newpages < oldpages) {
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VM_OBJECT_WLOCK(sc->object);
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vm_object_page_remove(sc->object, newpages, 0, 0);
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