From 31b140398ce56ab41646eda7f02bcb78d6a4c916 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Wed, 5 Mar 2014 01:33:16 -0500 Subject: [PATCH] switch {__,}blockdev_direct_IO() to iov_iter Signed-off-by: Al Viro --- fs/block_dev.c | 4 ++-- fs/btrfs/inode.c | 3 +-- fs/direct-io.c | 33 ++++++++++++++++----------------- fs/ext2/inode.c | 3 +-- fs/ext3/inode.c | 3 +-- fs/ext4/indirect.c | 7 +++---- fs/ext4/inode.c | 4 ++-- fs/f2fs/data.c | 4 ++-- fs/fat/inode.c | 3 +-- fs/gfs2/aops.c | 2 +- fs/hfs/inode.c | 3 +-- fs/hfsplus/inode.c | 2 +- fs/jfs/inode.c | 3 +-- fs/nilfs2/inode.c | 4 ++-- fs/ocfs2/aops.c | 2 +- fs/reiserfs/inode.c | 4 ++-- fs/udf/inode.c | 3 +-- fs/xfs/xfs_aops.c | 10 ++++------ include/linux/fs.h | 12 ++++++------ 19 files changed, 49 insertions(+), 60 deletions(-) diff --git a/fs/block_dev.c b/fs/block_dev.c index 938fc707d769..937e3011ed58 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -171,8 +171,8 @@ blkdev_direct_IO(int rw, struct kiocb *iocb, struct iov_iter *iter, struct file *file = iocb->ki_filp; struct inode *inode = file->f_mapping->host; - return __blockdev_direct_IO(rw, iocb, inode, I_BDEV(inode), iter->iov, - offset, iter->nr_segs, blkdev_get_block, + return __blockdev_direct_IO(rw, iocb, inode, I_BDEV(inode), iter, + offset, blkdev_get_block, NULL, NULL, 0); } diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index c46a025d0c4b..b0b8fa0efba3 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -7483,8 +7483,7 @@ static ssize_t btrfs_direct_IO(int rw, struct kiocb *iocb, ret = __blockdev_direct_IO(rw, iocb, inode, BTRFS_I(inode)->root->fs_info->fs_devices->latest_bdev, - iter->iov, offset, iter->nr_segs, - btrfs_get_blocks_direct, NULL, + iter, offset, btrfs_get_blocks_direct, NULL, btrfs_submit_direct, flags); if (rw & WRITE) { if (ret < 0 && ret != -EIOCBQUEUED) diff --git a/fs/direct-io.c b/fs/direct-io.c index 31ba0935e32e..1c677899b989 100644 --- a/fs/direct-io.c +++ b/fs/direct-io.c @@ -1107,8 +1107,8 @@ static inline int drop_refcount(struct dio *dio) */ static inline ssize_t do_blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode, - struct block_device *bdev, const struct iovec *iov, loff_t offset, - unsigned long nr_segs, get_block_t get_block, dio_iodone_t end_io, + struct block_device *bdev, struct iov_iter *iter, loff_t offset, + get_block_t get_block, dio_iodone_t end_io, dio_submit_t submit_io, int flags) { int seg; @@ -1143,9 +1143,9 @@ do_blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode, } /* Check the memory alignment. Blocks cannot straddle pages */ - for (seg = 0; seg < nr_segs; seg++) { - addr = (unsigned long)iov[seg].iov_base; - size = iov[seg].iov_len; + for (seg = 0; seg < iter->nr_segs; seg++) { + addr = (unsigned long)iter->iov[seg].iov_base; + size = iter->iov[seg].iov_len; end += size; if (unlikely((addr & blocksize_mask) || (size & blocksize_mask))) { @@ -1256,18 +1256,18 @@ do_blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode, if (unlikely(sdio.blkfactor)) sdio.pages_in_io = 2; - for (seg = 0; seg < nr_segs; seg++) { - user_addr = (unsigned long)iov[seg].iov_base; + for (seg = 0; seg < iter->nr_segs; seg++) { + user_addr = (unsigned long)iter->iov[seg].iov_base; sdio.pages_in_io += - ((user_addr + iov[seg].iov_len + PAGE_SIZE-1) / + ((user_addr + iter->iov[seg].iov_len + PAGE_SIZE-1) / PAGE_SIZE - user_addr / PAGE_SIZE); } blk_start_plug(&plug); - for (seg = 0; seg < nr_segs; seg++) { - user_addr = (unsigned long)iov[seg].iov_base; - sdio.size += bytes = iov[seg].iov_len; + for (seg = 0; seg < iter->nr_segs; seg++) { + user_addr = (unsigned long)iter->iov[seg].iov_base; + sdio.size += bytes = iter->iov[seg].iov_len; /* Index into the first page of the first block */ sdio.first_block_in_page = (user_addr & ~PAGE_MASK) >> blkbits; @@ -1288,7 +1288,7 @@ do_blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode, retval = do_direct_IO(dio, &sdio, &map_bh); - dio->result += iov[seg].iov_len - + dio->result += iter->iov[seg].iov_len - ((sdio.final_block_in_request - sdio.block_in_file) << blkbits); @@ -1365,8 +1365,8 @@ out: ssize_t __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode, - struct block_device *bdev, const struct iovec *iov, loff_t offset, - unsigned long nr_segs, get_block_t get_block, dio_iodone_t end_io, + struct block_device *bdev, struct iov_iter *iter, loff_t offset, + get_block_t get_block, dio_iodone_t end_io, dio_submit_t submit_io, int flags) { /* @@ -1381,9 +1381,8 @@ __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode, prefetch(bdev->bd_queue); prefetch((char *)bdev->bd_queue + SMP_CACHE_BYTES); - return do_blockdev_direct_IO(rw, iocb, inode, bdev, iov, offset, - nr_segs, get_block, end_io, - submit_io, flags); + return do_blockdev_direct_IO(rw, iocb, inode, bdev, iter, offset, + get_block, end_io, submit_io, flags); } EXPORT_SYMBOL(__blockdev_direct_IO); diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c index 116e809aa7cb..36d35c36311d 100644 --- a/fs/ext2/inode.c +++ b/fs/ext2/inode.c @@ -859,8 +859,7 @@ ext2_direct_IO(int rw, struct kiocb *iocb, struct iov_iter *iter, size_t count = iov_iter_count(iter); ssize_t ret; - ret = blockdev_direct_IO(rw, iocb, inode, iter->iov, offset, - iter->nr_segs, ext2_get_block); + ret = blockdev_direct_IO(rw, iocb, inode, iter, offset, ext2_get_block); if (ret < 0 && (rw & WRITE)) ext2_write_failed(mapping, offset + count); return ret; diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c index 8582ae2c80b0..4d32133a76c4 100644 --- a/fs/ext3/inode.c +++ b/fs/ext3/inode.c @@ -1855,8 +1855,7 @@ static ssize_t ext3_direct_IO(int rw, struct kiocb *iocb, } retry: - ret = blockdev_direct_IO(rw, iocb, inode, iter->iov, offset, - iter->nr_segs, ext3_get_block); + ret = blockdev_direct_IO(rw, iocb, inode, iter, offset, ext3_get_block); /* * In case of error extending write may have instantiated a few * blocks outside i_size. Trim these off again. diff --git a/fs/ext4/indirect.c b/fs/ext4/indirect.c index 123898a6af05..8a57e9fcd1b9 100644 --- a/fs/ext4/indirect.c +++ b/fs/ext4/indirect.c @@ -686,14 +686,13 @@ retry: goto locked; } ret = __blockdev_direct_IO(rw, iocb, inode, - inode->i_sb->s_bdev, iter->iov, - offset, iter->nr_segs, + inode->i_sb->s_bdev, iter, offset, ext4_get_block, NULL, NULL, 0); inode_dio_done(inode); } else { locked: - ret = blockdev_direct_IO(rw, iocb, inode, iter->iov, - offset, iter->nr_segs, ext4_get_block); + ret = blockdev_direct_IO(rw, iocb, inode, iter, + offset, ext4_get_block); if (unlikely((rw & WRITE) && ret < 0)) { loff_t isize = i_size_read(inode); diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 2b993579a968..e5718385a037 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3166,8 +3166,8 @@ static ssize_t ext4_ext_direct_IO(int rw, struct kiocb *iocb, dio_flags = DIO_LOCKING; } ret = __blockdev_direct_IO(rw, iocb, inode, - inode->i_sb->s_bdev, iter->iov, - offset, iter->nr_segs, + inode->i_sb->s_bdev, iter, + offset, get_block_func, ext4_end_io_dio, NULL, diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 3a6ef121c095..151488f27755 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -1022,8 +1022,8 @@ static ssize_t f2fs_direct_IO(int rw, struct kiocb *iocb, if (check_direct_IO(inode, rw, iter->iov, offset, iter->nr_segs)) return 0; - return blockdev_direct_IO(rw, iocb, inode, iter->iov, offset, - iter->nr_segs, get_data_block); + return blockdev_direct_IO(rw, iocb, inode, iter, offset, + get_data_block); } static void f2fs_invalidate_data_page(struct page *page, unsigned int offset, diff --git a/fs/fat/inode.c b/fs/fat/inode.c index 154a6f9d3189..385cce464e82 100644 --- a/fs/fat/inode.c +++ b/fs/fat/inode.c @@ -213,8 +213,7 @@ static ssize_t fat_direct_IO(int rw, struct kiocb *iocb, * FAT need to use the DIO_LOCKING for avoiding the race * condition of fat_get_block() and ->truncate(). */ - ret = blockdev_direct_IO(rw, iocb, inode, iter->iov, offset, - iter->nr_segs, fat_get_block); + ret = blockdev_direct_IO(rw, iocb, inode, iter, offset, fat_get_block); if (ret < 0 && (rw & WRITE)) fat_write_failed(mapping, offset + count); diff --git a/fs/gfs2/aops.c b/fs/gfs2/aops.c index 228a12d2afa9..910838951d66 100644 --- a/fs/gfs2/aops.c +++ b/fs/gfs2/aops.c @@ -1097,7 +1097,7 @@ static ssize_t gfs2_direct_IO(int rw, struct kiocb *iocb, } rv = __blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, - iter->iov, offset, iter->nr_segs, + iter, offset, gfs2_get_block_direct, NULL, NULL, 0); out: gfs2_glock_dq(&gh); diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c index dc69e8f31581..f5fb09ebc850 100644 --- a/fs/hfs/inode.c +++ b/fs/hfs/inode.c @@ -133,8 +133,7 @@ static ssize_t hfs_direct_IO(int rw, struct kiocb *iocb, size_t count = iov_iter_count(iter); ssize_t ret; - ret = blockdev_direct_IO(rw, iocb, inode, iter->iov, offset, - iter->nr_segs, hfs_get_block); + ret = blockdev_direct_IO(rw, iocb, inode, iter, offset, hfs_get_block); /* * In case of error extending write may have instantiated a few diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c index e6b1251af47a..76b930ff58ae 100644 --- a/fs/hfsplus/inode.c +++ b/fs/hfsplus/inode.c @@ -131,7 +131,7 @@ static ssize_t hfsplus_direct_IO(int rw, struct kiocb *iocb, size_t count = iov_iter_count(iter); ssize_t ret; - ret = blockdev_direct_IO(rw, iocb, inode, iter->iov, offset, iter->nr_segs, + ret = blockdev_direct_IO(rw, iocb, inode, iter, offset, hfsplus_get_block); /* diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c index 6cde5928693b..bd3df1ca3c9b 100644 --- a/fs/jfs/inode.c +++ b/fs/jfs/inode.c @@ -339,8 +339,7 @@ static ssize_t jfs_direct_IO(int rw, struct kiocb *iocb, size_t count = iov_iter_count(iter); ssize_t ret; - ret = blockdev_direct_IO(rw, iocb, inode, iter->iov, offset, - iter->nr_segs, jfs_get_block); + ret = blockdev_direct_IO(rw, iocb, inode, iter, offset, jfs_get_block); /* * In case of error extending write may have instantiated a few diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c index 7aaf913e8709..6252b173a465 100644 --- a/fs/nilfs2/inode.c +++ b/fs/nilfs2/inode.c @@ -311,8 +311,8 @@ nilfs_direct_IO(int rw, struct kiocb *iocb, struct iov_iter *iter, return 0; /* Needs synchronization with the cleaner */ - size = blockdev_direct_IO(rw, iocb, inode, iter->iov, offset, - iter->nr_segs, nilfs_get_block); + size = blockdev_direct_IO(rw, iocb, inode, iter, offset, + nilfs_get_block); /* * In case of error extending write may have instantiated a few diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c index 799fd0afcb35..4a231a166cf8 100644 --- a/fs/ocfs2/aops.c +++ b/fs/ocfs2/aops.c @@ -617,7 +617,7 @@ static ssize_t ocfs2_direct_IO(int rw, return 0; return __blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, - iter->iov, offset, iter->nr_segs, + iter, offset, ocfs2_direct_IO_get_blocks, ocfs2_dio_end_io, NULL, 0); } diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c index 723affe921f1..b8003e8dd1f4 100644 --- a/fs/reiserfs/inode.c +++ b/fs/reiserfs/inode.c @@ -3090,8 +3090,8 @@ static ssize_t reiserfs_direct_IO(int rw, struct kiocb *iocb, size_t count = iov_iter_count(iter); ssize_t ret; - ret = blockdev_direct_IO(rw, iocb, inode, iter->iov, offset, - iter->nr_segs, reiserfs_get_blocks_direct_io); + ret = blockdev_direct_IO(rw, iocb, inode, iter, offset, + reiserfs_get_blocks_direct_io); /* * In case of error extending write may have instantiated a few diff --git a/fs/udf/inode.c b/fs/udf/inode.c index 28984baf6194..236cd48184c2 100644 --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -226,8 +226,7 @@ static ssize_t udf_direct_IO(int rw, struct kiocb *iocb, size_t count = iov_iter_count(iter); ssize_t ret; - ret = blockdev_direct_IO(rw, iocb, inode, iter->iov, offset, iter->nr_segs, - udf_get_block); + ret = blockdev_direct_IO(rw, iocb, inode, iter, offset, udf_get_block); if (unlikely(ret < 0 && (rw & WRITE))) udf_write_failed(mapping, offset + count); return ret; diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c index 6462b3186784..08d13e395252 100644 --- a/fs/xfs/xfs_aops.c +++ b/fs/xfs/xfs_aops.c @@ -1470,17 +1470,15 @@ xfs_vm_direct_IO( if (offset + size > XFS_I(inode)->i_d.di_size) ioend->io_isdirect = 1; - ret = __blockdev_direct_IO(rw, iocb, inode, bdev, iter->iov, - offset, iter->nr_segs, - xfs_get_blocks_direct, + ret = __blockdev_direct_IO(rw, iocb, inode, bdev, iter, + offset, xfs_get_blocks_direct, xfs_end_io_direct_write, NULL, DIO_ASYNC_EXTEND); if (ret != -EIOCBQUEUED && iocb->private) goto out_destroy_ioend; } else { - ret = __blockdev_direct_IO(rw, iocb, inode, bdev, iter->iov, - offset, iter->nr_segs, - xfs_get_blocks_direct, + ret = __blockdev_direct_IO(rw, iocb, inode, bdev, iter, + offset, xfs_get_blocks_direct, NULL, NULL, 0); } diff --git a/include/linux/fs.h b/include/linux/fs.h index 399a338c92b5..946a9484844f 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2474,16 +2474,16 @@ enum { void dio_end_io(struct bio *bio, int error); ssize_t __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode, - struct block_device *bdev, const struct iovec *iov, loff_t offset, - unsigned long nr_segs, get_block_t get_block, dio_iodone_t end_io, + struct block_device *bdev, struct iov_iter *iter, loff_t offset, + get_block_t get_block, dio_iodone_t end_io, dio_submit_t submit_io, int flags); static inline ssize_t blockdev_direct_IO(int rw, struct kiocb *iocb, - struct inode *inode, const struct iovec *iov, loff_t offset, - unsigned long nr_segs, get_block_t get_block) + struct inode *inode, struct iov_iter *iter, loff_t offset, + get_block_t get_block) { - return __blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov, - offset, nr_segs, get_block, NULL, NULL, + return __blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iter, + offset, get_block, NULL, NULL, DIO_LOCKING | DIO_SKIP_HOLES); } #endif -- 2.20.1