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iov: add import_ubuf()

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Like import_single_range(), but for ITER_UBUF.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Jens Axboe
2023-01-05 11:07:30 -08:00
parent b7bfaa761d
commit 2ad9bd8332
2 changed files with 12 additions and 0 deletions
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include/linux/uio.h
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@@ -346,6 +346,7 @@ ssize_t __import_iovec(int type, const struct iovec __user *uvec,
struct iov_iter *i, bool compat);
int import_single_range(int type, void __user *buf, size_t len,
struct iovec *iov, struct iov_iter *i);
int import_ubuf(int type, void __user *buf, size_t len, struct iov_iter *i);
static inline void iov_iter_ubuf(struct iov_iter *i, unsigned int direction,
void __user *buf, size_t count)