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expand those iov_iter_advance()...

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2022-06-11 04:04:33 -04:00
parent 746de1f86f
commit 310d9d5a50
1 changed files with 9 additions and 2 deletions
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11
lib/iov_iter.c
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@ -1378,7 +1378,8 @@ static ssize_t iter_xarray_get_pages(struct iov_iter *i,
return 0; return 0;
maxsize = min_t(size_t, nr * PAGE_SIZE - offset, maxsize); maxsize = min_t(size_t, nr * PAGE_SIZE - offset, maxsize);
iov_iter_advance(i, maxsize); i->iov_offset += maxsize;
i->count -= maxsize;
return maxsize; return maxsize;
} }
@ -1467,7 +1468,13 @@ static ssize_t __iov_iter_get_pages_alloc(struct iov_iter *i,
for (int k = 0; k < n; k++) for (int k = 0; k < n; k++)
get_page(p[k] = page + k); get_page(p[k] = page + k);
maxsize = min_t(size_t, maxsize, n * PAGE_SIZE - *start); maxsize = min_t(size_t, maxsize, n * PAGE_SIZE - *start);
iov_iter_advance(i, maxsize); i->count -= maxsize;
i->iov_offset += maxsize;
if (i->iov_offset == i->bvec->bv_len) {
i->iov_offset = 0;
i->bvec++;
i->nr_segs--;
}
return maxsize; return maxsize;
} }
if (iov_iter_is_pipe(i)) if (iov_iter_is_pipe(i))