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ITER_XARRAY: don't open-code DIV_ROUND_UP() 

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2022-06-10 20:30:35 -04:00
parent 451c0ba947
commit 0aa4fc32f5
1 changed files with 1 additions and 9 deletions
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10
lib/iov_iter.c
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@ -1386,15 +1386,7 @@ static ssize_t iter_xarray_get_pages(struct iov_iter *i,
offset = pos & ~PAGE_MASK;
*_start_offset = offset;
count = 1;
if (size > PAGE_SIZE - offset) {
size -= PAGE_SIZE - offset;
count += size >> PAGE_SHIFT;
size &= ~PAGE_MASK;
if (size)
count++;
}
count = DIV_ROUND_UP(size + offset, PAGE_SIZE);
if (count > maxpages)
count = maxpages;