diff options
Diffstat (limited to 'lib/iov_iter.c')
-rw-r--r-- | lib/iov_iter.c | 32 |
1 files changed, 24 insertions, 8 deletions
diff --git a/lib/iov_iter.c b/lib/iov_iter.c index 98e8425b060d..f9a3ff37ecd1 100644 --- a/lib/iov_iter.c +++ b/lib/iov_iter.c @@ -1431,7 +1431,8 @@ static struct page *first_bvec_segment(const struct iov_iter *i, static ssize_t __iov_iter_get_pages_alloc(struct iov_iter *i, struct page ***pages, size_t maxsize, - unsigned int maxpages, size_t *start) + unsigned int maxpages, size_t *start, + unsigned int gup_flags) { unsigned int n; @@ -1443,7 +1444,6 @@ static ssize_t __iov_iter_get_pages_alloc(struct iov_iter *i, maxsize = MAX_RW_COUNT; if (likely(user_backed_iter(i))) { - unsigned int gup_flags = 0; unsigned long addr; int res; @@ -1493,33 +1493,49 @@ static ssize_t __iov_iter_get_pages_alloc(struct iov_iter *i, return -EFAULT; } -ssize_t iov_iter_get_pages2(struct iov_iter *i, +ssize_t iov_iter_get_pages(struct iov_iter *i, struct page **pages, size_t maxsize, unsigned maxpages, - size_t *start) + size_t *start, unsigned gup_flags) { if (!maxpages) return 0; BUG_ON(!pages); - return __iov_iter_get_pages_alloc(i, &pages, maxsize, maxpages, start); + return __iov_iter_get_pages_alloc(i, &pages, maxsize, maxpages, + start, gup_flags); +} +EXPORT_SYMBOL_GPL(iov_iter_get_pages); + +ssize_t iov_iter_get_pages2(struct iov_iter *i, struct page **pages, + size_t maxsize, unsigned maxpages, size_t *start) +{ + return iov_iter_get_pages(i, pages, maxsize, maxpages, start, 0); } EXPORT_SYMBOL(iov_iter_get_pages2); -ssize_t iov_iter_get_pages_alloc2(struct iov_iter *i, +ssize_t iov_iter_get_pages_alloc(struct iov_iter *i, struct page ***pages, size_t maxsize, - size_t *start) + size_t *start, unsigned gup_flags) { ssize_t len; *pages = NULL; - len = __iov_iter_get_pages_alloc(i, pages, maxsize, ~0U, start); + len = __iov_iter_get_pages_alloc(i, pages, maxsize, ~0U, start, + gup_flags); if (len <= 0) { kvfree(*pages); *pages = NULL; } return len; } +EXPORT_SYMBOL_GPL(iov_iter_get_pages_alloc); + +ssize_t iov_iter_get_pages_alloc2(struct iov_iter *i, + struct page ***pages, size_t maxsize, size_t *start) +{ + return iov_iter_get_pages_alloc(i, pages, maxsize, start, 0); +} EXPORT_SYMBOL(iov_iter_get_pages_alloc2); size_t csum_and_copy_from_iter(void *addr, size_t bytes, __wsum *csum, |