From 786f847f43a54e63161474fe85a4f1764d871a35 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 5 May 2022 15:11:11 -0500 Subject: iomap: add per-iomap_iter private data Allow the file system to keep state for all iterations. For now only wire it up for direct I/O as there is an immediate need for it there. Reviewed-by: Darrick J. Wong Reviewed-by: Nikolay Borisov Signed-off-by: Christoph Hellwig Reviewed-by: David Sterba Signed-off-by: David Sterba --- fs/iomap/direct-io.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'fs/iomap') diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c index 314d8235f4ab..cf224a8bb311 100644 --- a/fs/iomap/direct-io.c +++ b/fs/iomap/direct-io.c @@ -483,7 +483,7 @@ static loff_t iomap_dio_iter(const struct iomap_iter *iter, struct iomap_dio * __iomap_dio_rw(struct kiocb *iocb, struct iov_iter *iter, const struct iomap_ops *ops, const struct iomap_dio_ops *dops, - unsigned int dio_flags, size_t done_before) + unsigned int dio_flags, void *private, size_t done_before) { struct address_space *mapping = iocb->ki_filp->f_mapping; struct inode *inode = file_inode(iocb->ki_filp); @@ -492,6 +492,7 @@ __iomap_dio_rw(struct kiocb *iocb, struct iov_iter *iter, .pos = iocb->ki_pos, .len = iov_iter_count(iter), .flags = IOMAP_DIRECT, + .private = private, }; loff_t end = iomi.pos + iomi.len - 1, ret = 0; bool wait_for_completion = @@ -683,11 +684,12 @@ EXPORT_SYMBOL_GPL(__iomap_dio_rw); ssize_t iomap_dio_rw(struct kiocb *iocb, struct iov_iter *iter, const struct iomap_ops *ops, const struct iomap_dio_ops *dops, - unsigned int dio_flags, size_t done_before) + unsigned int dio_flags, void *private, size_t done_before) { struct iomap_dio *dio; - dio = __iomap_dio_rw(iocb, iter, ops, dops, dio_flags, done_before); + dio = __iomap_dio_rw(iocb, iter, ops, dops, dio_flags, private, + done_before); if (IS_ERR_OR_NULL(dio)) return PTR_ERR_OR_ZERO(dio); return iomap_dio_complete(dio); -- cgit v1.2.3