diff options
Diffstat (limited to 'lib/iov_iter.c')
| -rw-r--r-- | lib/iov_iter.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/lib/iov_iter.c b/lib/iov_iter.c index ea36dc355da1..f99c41d4eb54 100644 --- a/lib/iov_iter.c +++ b/lib/iov_iter.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only #include <linux/export.h> #include <linux/bvec.h> #include <linux/uio.h> @@ -1293,7 +1294,9 @@ ssize_t iov_iter_get_pages(struct iov_iter *i, len = maxpages * PAGE_SIZE; addr &= ~(PAGE_SIZE - 1); n = DIV_ROUND_UP(len, PAGE_SIZE); - res = get_user_pages_fast(addr, n, iov_iter_rw(i) != WRITE, pages); + res = get_user_pages_fast(addr, n, + iov_iter_rw(i) != WRITE ? FOLL_WRITE : 0, + pages); if (unlikely(res < 0)) return res; return (res == n ? len : res * PAGE_SIZE) - *start; @@ -1374,7 +1377,8 @@ ssize_t iov_iter_get_pages_alloc(struct iov_iter *i, p = get_pages_array(n); if (!p) return -ENOMEM; - res = get_user_pages_fast(addr, n, iov_iter_rw(i) != WRITE, p); + res = get_user_pages_fast(addr, n, + iov_iter_rw(i) != WRITE ? FOLL_WRITE : 0, p); if (unlikely(res < 0)) { kvfree(p); return res; @@ -1528,6 +1532,7 @@ EXPORT_SYMBOL(csum_and_copy_to_iter); size_t hash_and_copy_to_iter(const void *addr, size_t bytes, void *hashp, struct iov_iter *i) { +#ifdef CONFIG_CRYPTO struct ahash_request *hash = hashp; struct scatterlist sg; size_t copied; @@ -1537,6 +1542,9 @@ size_t hash_and_copy_to_iter(const void *addr, size_t bytes, void *hashp, ahash_request_set_crypt(hash, &sg, NULL, copied); crypto_ahash_update(hash); return copied; +#else + return 0; +#endif } EXPORT_SYMBOL(hash_and_copy_to_iter); |