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Remove some redundant assignments and computations.

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Reported by:	alc
Reviewed by:	alc, kib
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D25400
This commit is contained in:
Mark Johnston 2020-06-28 21:34:38 +00:00
parent 40276ff30e
commit 3507b8d467
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=362739
2 changed files with 4 additions and 5 deletions
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5
sys/compat/linuxkpi/common/src/linux_page.c
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@ -199,7 +199,7 @@ linux_get_user_pages_internal(vm_map_t map, unsigned long start, int nr_pages,
int count;
prot = write ? (VM_PROT_READ | VM_PROT_WRITE) : VM_PROT_READ;
len = ((size_t)nr_pages) << PAGE_SHIFT;
len = ptoa((vm_offset_t)nr_pages);
count = vm_fault_quick_hold_pages(map, start, len, prot, pages, nr_pages);
return (count == -1 ? -EFAULT : nr_pages);
}
@ -219,9 +219,8 @@ __get_user_pages_fast(unsigned long start, int nr_pages, int write,
return (0);
MPASS(pages != NULL);
va = start;
map = &curthread->td_proc->p_vmspace->vm_map;
end = start + (((size_t)nr_pages) << PAGE_SHIFT);
end = start + ptoa((vm_offset_t)nr_pages);
if (!vm_map_range_valid(map, start, end))
return (-EINVAL);
prot = write ? (VM_PROT_READ | VM_PROT_WRITE) : VM_PROT_READ;

4
sys/dev/md/md.c
View File

@ -1561,8 +1561,8 @@ mdresize(struct md_s *sc, struct md_req *mdr)
if (mdr->md_mediasize <= 0 ||
(mdr->md_mediasize % PAGE_SIZE) != 0)
return (EDOM);
oldpages = OFF_TO_IDX(round_page(sc->mediasize));
newpages = OFF_TO_IDX(round_page(mdr->md_mediasize));
oldpages = OFF_TO_IDX(sc->mediasize);
newpages = OFF_TO_IDX(mdr->md_mediasize);
if (newpages < oldpages) {
VM_OBJECT_WLOCK(sc->object);
vm_object_page_remove(sc->object, newpages, 0, 0);