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author | Al Viro <viro@zeniv.linux.org.uk> | 2014-03-05 03:38:00 (GMT) |
---|---|---|
committer | Al Viro <viro@zeniv.linux.org.uk> | 2014-05-06 21:32:45 (GMT) |
commit | a6cbcd4a4a85e2fdb0b3344b88df2e8b3d526b9e (patch) | |
tree | c0f054759a0b9c26881109968ad018fe759af458 /fs | |
parent | 16b1f05d7f5ab4ce570963aca5f3b2b5d21822fa (diff) | |
download | linux-a6cbcd4a4a85e2fdb0b3344b88df2e8b3d526b9e.tar.xz |
get rid of pointless iov_length() in ->direct_IO()
all callers have iov_length(iter->iov, iter->nr_segs) == iov_iter_count(iter)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs')
-rw-r--r-- | fs/btrfs/inode.c | 2 | ||||
-rw-r--r-- | fs/ext2/inode.c | 4 | ||||
-rw-r--r-- | fs/ext3/inode.c | 2 | ||||
-rw-r--r-- | fs/ext4/indirect.c | 2 | ||||
-rw-r--r-- | fs/ext4/inode.c | 8 | ||||
-rw-r--r-- | fs/fat/inode.c | 6 | ||||
-rw-r--r-- | fs/fuse/file.c | 2 | ||||
-rw-r--r-- | fs/gfs2/aops.c | 2 | ||||
-rw-r--r-- | fs/hfs/inode.c | 3 | ||||
-rw-r--r-- | fs/hfsplus/inode.c | 3 | ||||
-rw-r--r-- | fs/jfs/inode.c | 3 | ||||
-rw-r--r-- | fs/nfs/direct.c | 10 | ||||
-rw-r--r-- | fs/nilfs2/inode.c | 3 | ||||
-rw-r--r-- | fs/reiserfs/inode.c | 3 | ||||
-rw-r--r-- | fs/udf/inode.c | 3 | ||||
-rw-r--r-- | fs/xfs/xfs_aops.c | 2 |
16 files changed, 30 insertions, 28 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 30a6cc5..c46a025 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -7456,7 +7456,7 @@ static ssize_t btrfs_direct_IO(int rw, struct kiocb *iocb, * we need to flush the dirty pages again to make absolutely sure * that any outstanding dirty pages are on disk. */ - count = iov_length(iter->iov, iter->nr_segs); + count = iov_iter_count(iter); if (test_bit(BTRFS_INODE_HAS_ASYNC_EXTENT, &BTRFS_I(inode)->runtime_flags)) filemap_fdatawrite_range(inode->i_mapping, offset, count); diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c index 47fbe76..116e809 100644 --- a/fs/ext2/inode.c +++ b/fs/ext2/inode.c @@ -856,13 +856,13 @@ ext2_direct_IO(int rw, struct kiocb *iocb, struct iov_iter *iter, struct file *file = iocb->ki_filp; struct address_space *mapping = file->f_mapping; struct inode *inode = mapping->host; + 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); if (ret < 0 && (rw & WRITE)) - ext2_write_failed(mapping, offset + - iov_length(iter->iov, iter->nr_segs)); + ext2_write_failed(mapping, offset + count); return ret; } diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c index 7a5c501..8582ae2 100644 --- a/fs/ext3/inode.c +++ b/fs/ext3/inode.c @@ -1828,7 +1828,7 @@ static ssize_t ext3_direct_IO(int rw, struct kiocb *iocb, handle_t *handle; ssize_t ret; int orphan = 0; - size_t count = iov_length(iter->iov, iter->nr_segs); + size_t count = iov_iter_count(iter); int retries = 0; trace_ext3_direct_IO_enter(inode, offset, count, rw); diff --git a/fs/ext4/indirect.c b/fs/ext4/indirect.c index eb5ae16..123898a 100644 --- a/fs/ext4/indirect.c +++ b/fs/ext4/indirect.c @@ -647,7 +647,7 @@ ssize_t ext4_ind_direct_IO(int rw, struct kiocb *iocb, handle_t *handle; ssize_t ret; int orphan = 0; - size_t count = iov_length(iter->iov, iter->nr_segs); + size_t count = iov_iter_count(iter); int retries = 0; if (rw == WRITE) { diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 29996c1..2b99357 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3090,7 +3090,7 @@ static ssize_t ext4_ext_direct_IO(int rw, struct kiocb *iocb, struct file *file = iocb->ki_filp; struct inode *inode = file->f_mapping->host; ssize_t ret; - size_t count = iov_length(iter->iov, iter->nr_segs); + size_t count = iov_iter_count(iter); int overwrite = 0; get_block_t *get_block_func = NULL; int dio_flags = 0; @@ -3225,6 +3225,7 @@ static ssize_t ext4_direct_IO(int rw, struct kiocb *iocb, { struct file *file = iocb->ki_filp; struct inode *inode = file->f_mapping->host; + size_t count = iov_iter_count(iter); ssize_t ret; /* @@ -3237,13 +3238,12 @@ static ssize_t ext4_direct_IO(int rw, struct kiocb *iocb, if (ext4_has_inline_data(inode)) return 0; - trace_ext4_direct_IO_enter(inode, offset, iov_length(iter->iov, iter->nr_segs), rw); + trace_ext4_direct_IO_enter(inode, offset, count, rw); if (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)) ret = ext4_ext_direct_IO(rw, iocb, iter, offset); else ret = ext4_ind_direct_IO(rw, iocb, iter, offset); - trace_ext4_direct_IO_exit(inode, offset, - iov_length(iter->iov, iter->nr_segs), rw, ret); + trace_ext4_direct_IO_exit(inode, offset, count, rw, ret); return ret; } diff --git a/fs/fat/inode.c b/fs/fat/inode.c index d5237a1..154a6f9 100644 --- a/fs/fat/inode.c +++ b/fs/fat/inode.c @@ -191,6 +191,7 @@ static ssize_t fat_direct_IO(int rw, struct kiocb *iocb, struct file *file = iocb->ki_filp; struct address_space *mapping = file->f_mapping; struct inode *inode = mapping->host; + size_t count = iov_iter_count(iter); ssize_t ret; if (rw == WRITE) { @@ -203,7 +204,7 @@ static ssize_t fat_direct_IO(int rw, struct kiocb *iocb, * * Return 0, and fallback to normal buffered write. */ - loff_t size = offset + iov_length(iter->iov, iter->nr_segs); + loff_t size = offset + count; if (MSDOS_I(inode)->mmu_private < size) return 0; } @@ -215,8 +216,7 @@ static ssize_t fat_direct_IO(int rw, struct kiocb *iocb, ret = blockdev_direct_IO(rw, iocb, inode, iter->iov, offset, iter->nr_segs, fat_get_block); if (ret < 0 && (rw & WRITE)) - fat_write_failed(mapping, offset + - iov_length(iter->iov, iter->nr_segs)); + fat_write_failed(mapping, offset + count); return ret; } diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 17d96f3..36f15f9 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -2900,7 +2900,7 @@ fuse_direct_IO(int rw, struct kiocb *iocb, struct iov_iter *iter, loff_t pos = 0; struct inode *inode; loff_t i_size; - size_t count = iov_length(iter->iov, iter->nr_segs); + size_t count = iov_iter_count(iter); struct fuse_io_priv *io; pos = offset; diff --git a/fs/gfs2/aops.c b/fs/gfs2/aops.c index e84ddaa..228a12d 100644 --- a/fs/gfs2/aops.c +++ b/fs/gfs2/aops.c @@ -1081,7 +1081,7 @@ static ssize_t gfs2_direct_IO(int rw, struct kiocb *iocb, */ if (mapping->nrpages) { loff_t lstart = offset & (PAGE_CACHE_SIZE - 1); - loff_t len = iov_length(iter->iov, iter->nr_segs); + loff_t len = iov_iter_count(iter); loff_t end = PAGE_ALIGN(offset + len) - 1; rv = 0; diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c index 09cff13..dc69e8f 100644 --- a/fs/hfs/inode.c +++ b/fs/hfs/inode.c @@ -130,6 +130,7 @@ static ssize_t hfs_direct_IO(int rw, struct kiocb *iocb, struct file *file = iocb->ki_filp; struct address_space *mapping = file->f_mapping; struct inode *inode = file_inode(file)->i_mapping->host; + size_t count = iov_iter_count(iter); ssize_t ret; ret = blockdev_direct_IO(rw, iocb, inode, iter->iov, offset, @@ -141,7 +142,7 @@ static ssize_t hfs_direct_IO(int rw, struct kiocb *iocb, */ if (unlikely((rw & WRITE) && ret < 0)) { loff_t isize = i_size_read(inode); - loff_t end = offset + iov_length(iter->iov, iter->nr_segs); + loff_t end = offset + count; if (end > isize) hfs_write_failed(mapping, end); diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c index 7f894a5..e6b1251 100644 --- a/fs/hfsplus/inode.c +++ b/fs/hfsplus/inode.c @@ -128,6 +128,7 @@ static ssize_t hfsplus_direct_IO(int rw, struct kiocb *iocb, struct file *file = iocb->ki_filp; struct address_space *mapping = file->f_mapping; struct inode *inode = file_inode(file)->i_mapping->host; + size_t count = iov_iter_count(iter); ssize_t ret; ret = blockdev_direct_IO(rw, iocb, inode, iter->iov, offset, iter->nr_segs, @@ -139,7 +140,7 @@ static ssize_t hfsplus_direct_IO(int rw, struct kiocb *iocb, */ if (unlikely((rw & WRITE) && ret < 0)) { loff_t isize = i_size_read(inode); - loff_t end = offset + iov_length(iter->iov, iter->nr_segs); + loff_t end = offset + count; if (end > isize) hfsplus_write_failed(mapping, end); diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c index 7052744..6cde592 100644 --- a/fs/jfs/inode.c +++ b/fs/jfs/inode.c @@ -336,6 +336,7 @@ static ssize_t jfs_direct_IO(int rw, struct kiocb *iocb, struct file *file = iocb->ki_filp; struct address_space *mapping = file->f_mapping; struct inode *inode = file->f_mapping->host; + size_t count = iov_iter_count(iter); ssize_t ret; ret = blockdev_direct_IO(rw, iocb, inode, iter->iov, offset, @@ -347,7 +348,7 @@ static ssize_t jfs_direct_IO(int rw, struct kiocb *iocb, */ if (unlikely((rw & WRITE) && ret < 0)) { loff_t isize = i_size_read(inode); - loff_t end = offset + iov_length(iter->iov, iter->nr_segs); + loff_t end = offset + count; if (end > isize) jfs_write_failed(mapping, end); diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c index 2172314..1d34f45 100644 --- a/fs/nfs/direct.c +++ b/fs/nfs/direct.c @@ -486,9 +486,7 @@ ssize_t nfs_file_direct_read(struct kiocb *iocb, struct iov_iter *iter, struct nfs_direct_req *dreq; struct nfs_lock_context *l_ctx; ssize_t result = -EINVAL; - size_t count; - - count = iov_length(iter->iov, iter->nr_segs); + size_t count = iov_iter_count(iter); nfs_add_stats(mapping->host, NFSIOS_DIRECTREADBYTES, count); dfprintk(FILE, "NFS: direct read(%pD2, %zd@%Ld)\n", @@ -877,7 +875,7 @@ static ssize_t nfs_direct_write_schedule_iovec(struct nfs_direct_req *dreq, get_dreq(dreq); atomic_inc(&inode->i_dio_count); - NFS_I(dreq->inode)->write_io += iov_length(iter->iov, iter->nr_segs); + NFS_I(dreq->inode)->write_io += iov_iter_count(iter); for (seg = 0; seg < iter->nr_segs; seg++) { const struct iovec *vec = &iter->iov[seg]; result = nfs_direct_write_schedule_segment(&desc, vec, pos, uio); @@ -936,9 +934,7 @@ ssize_t nfs_file_direct_write(struct kiocb *iocb, struct iov_iter *iter, struct nfs_direct_req *dreq; struct nfs_lock_context *l_ctx; loff_t end; - size_t count; - - count = iov_length(iter->iov, iter->nr_segs); + size_t count = iov_iter_count(iter); end = (pos + count - 1) >> PAGE_CACHE_SHIFT; nfs_add_stats(mapping->host, NFSIOS_DIRECTWRITTENBYTES, count); diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c index 1c0e8fe..7aaf913 100644 --- a/fs/nilfs2/inode.c +++ b/fs/nilfs2/inode.c @@ -304,6 +304,7 @@ nilfs_direct_IO(int rw, struct kiocb *iocb, struct iov_iter *iter, struct file *file = iocb->ki_filp; struct address_space *mapping = file->f_mapping; struct inode *inode = file->f_mapping->host; + size_t count = iov_iter_count(iter); ssize_t size; if (rw == WRITE) @@ -319,7 +320,7 @@ nilfs_direct_IO(int rw, struct kiocb *iocb, struct iov_iter *iter, */ if (unlikely((rw & WRITE) && size < 0)) { loff_t isize = i_size_read(inode); - loff_t end = offset + iov_length(iter->iov, iter->nr_segs); + loff_t end = offset + count; if (end > isize) nilfs_write_failed(mapping, end); diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c index 17bf4c4..723affe 100644 --- a/fs/reiserfs/inode.c +++ b/fs/reiserfs/inode.c @@ -3087,6 +3087,7 @@ static ssize_t reiserfs_direct_IO(int rw, struct kiocb *iocb, { struct file *file = iocb->ki_filp; struct inode *inode = file->f_mapping->host; + size_t count = iov_iter_count(iter); ssize_t ret; ret = blockdev_direct_IO(rw, iocb, inode, iter->iov, offset, @@ -3098,7 +3099,7 @@ static ssize_t reiserfs_direct_IO(int rw, struct kiocb *iocb, */ if (unlikely((rw & WRITE) && ret < 0)) { loff_t isize = i_size_read(inode); - loff_t end = offset + iov_length(iter->iov, iter->nr_segs); + loff_t end = offset + count; if ((end > isize) && inode_newsize_ok(inode, isize) == 0) { truncate_setsize(inode, isize); diff --git a/fs/udf/inode.c b/fs/udf/inode.c index 5b184c7..28984ba 100644 --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -223,12 +223,13 @@ static ssize_t udf_direct_IO(int rw, struct kiocb *iocb, struct file *file = iocb->ki_filp; struct address_space *mapping = file->f_mapping; struct inode *inode = mapping->host; + 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); if (unlikely(ret < 0 && (rw & WRITE))) - udf_write_failed(mapping, offset + iov_length(iter->iov, iter->nr_segs)); + udf_write_failed(mapping, offset + count); return ret; } diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c index 330d7b1..6462b31 100644 --- a/fs/xfs/xfs_aops.c +++ b/fs/xfs/xfs_aops.c @@ -1458,7 +1458,7 @@ xfs_vm_direct_IO( ssize_t ret; if (rw & WRITE) { - size_t size = iov_length(iter->iov, iter->nr_segs); + size_t size = iov_iter_count(iter); /* * We cannot preallocate a size update transaction here as we |