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authorLinus Torvalds <torvalds@linux-foundation.org>2016-05-18 01:05:23 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-05-18 01:05:23 +0300
commitc2e7b207058d4ff6a9010430763fb561f307eb67 (patch)
tree8983947c4d62365de3d98113662ff9e643a42a0f /fs/ext4
parentc52b76185b7a1b300e5f15ff871c8f45ced3dee9 (diff)
parent24368aad47dc65b45040d6a31bfd6df1d6f3ec97 (diff)
downloadlinux-c2e7b207058d4ff6a9010430763fb561f307eb67.tar.xz
Merge branch 'work.preadv2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs cleanups from Al Viro: "More cleanups from Christoph" * 'work.preadv2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: nfsd: use RWF_SYNC fs: add RWF_DSYNC aand RWF_SYNC ceph: use generic_write_sync fs: simplify the generic_write_sync prototype fs: add IOCB_SYNC and IOCB_DSYNC direct-io: remove the offset argument to dio_complete direct-io: eliminate the offset argument to ->direct_IO xfs: eliminate the pos variable in xfs_file_dio_aio_write filemap: remove the pos argument to generic_file_direct_write filemap: remove pos variables in generic_file_read_iter
Diffstat (limited to 'fs/ext4')
-rw-r--r--fs/ext4/ext4.h3
-rw-r--r--fs/ext4/file.c9
-rw-r--r--fs/ext4/indirect.c12
-rw-r--r--fs/ext4/inode.c18
4 files changed, 18 insertions, 24 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 349afebe21ee..72f4c9e00e97 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -2581,8 +2581,7 @@ extern int ext4_get_next_extent(struct inode *inode, ext4_lblk_t lblk,
/* indirect.c */
extern int ext4_ind_map_blocks(handle_t *handle, struct inode *inode,
struct ext4_map_blocks *map, int flags);
-extern ssize_t ext4_ind_direct_IO(struct kiocb *iocb, struct iov_iter *iter,
- loff_t offset);
+extern ssize_t ext4_ind_direct_IO(struct kiocb *iocb, struct iov_iter *iter);
extern int ext4_ind_calc_metadata_amount(struct inode *inode, sector_t lblock);
extern int ext4_ind_trans_blocks(struct inode *inode, int nrblocks);
extern void ext4_ind_truncate(handle_t *, struct inode *inode);
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index fa2208bae2e1..00ff6912adb3 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -169,13 +169,8 @@ ext4_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
ret = __generic_file_write_iter(iocb, from);
inode_unlock(inode);
- if (ret > 0) {
- ssize_t err;
-
- err = generic_write_sync(file, iocb->ki_pos - ret, ret);
- if (err < 0)
- ret = err;
- }
+ if (ret > 0)
+ ret = generic_write_sync(iocb, ret);
if (o_direct)
blk_finish_plug(&plug);
diff --git a/fs/ext4/indirect.c b/fs/ext4/indirect.c
index 3027fa681de5..627b7e8f9ef3 100644
--- a/fs/ext4/indirect.c
+++ b/fs/ext4/indirect.c
@@ -659,12 +659,12 @@ out:
* crashes then stale disk data _may_ be exposed inside the file. But current
* VFS code falls back into buffered path in that case so we are safe.
*/
-ssize_t ext4_ind_direct_IO(struct kiocb *iocb, struct iov_iter *iter,
- loff_t offset)
+ssize_t ext4_ind_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
{
struct file *file = iocb->ki_filp;
struct inode *inode = file->f_mapping->host;
struct ext4_inode_info *ei = EXT4_I(inode);
+ loff_t offset = iocb->ki_pos;
handle_t *handle;
ssize_t ret;
int orphan = 0;
@@ -707,21 +707,21 @@ retry:
goto locked;
}
if (IS_DAX(inode))
- ret = dax_do_io(iocb, inode, iter, offset,
+ ret = dax_do_io(iocb, inode, iter,
ext4_dio_get_block, NULL, 0);
else
ret = __blockdev_direct_IO(iocb, inode,
inode->i_sb->s_bdev, iter,
- offset, ext4_dio_get_block,
+ ext4_dio_get_block,
NULL, NULL, 0);
inode_dio_end(inode);
} else {
locked:
if (IS_DAX(inode))
- ret = dax_do_io(iocb, inode, iter, offset,
+ ret = dax_do_io(iocb, inode, iter,
ext4_dio_get_block, NULL, DIO_LOCKING);
else
- ret = blockdev_direct_IO(iocb, inode, iter, offset,
+ ret = blockdev_direct_IO(iocb, inode, iter,
ext4_dio_get_block);
if (unlikely(iov_iter_rw(iter) == WRITE && ret < 0)) {
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 981a1fc30eaa..79b298d397b4 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3334,12 +3334,12 @@ static int ext4_end_io_dio(struct kiocb *iocb, loff_t offset,
* if the machine crashes during the write.
*
*/
-static ssize_t ext4_ext_direct_IO(struct kiocb *iocb, struct iov_iter *iter,
- loff_t offset)
+static ssize_t ext4_ext_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
{
struct file *file = iocb->ki_filp;
struct inode *inode = file->f_mapping->host;
ssize_t ret;
+ loff_t offset = iocb->ki_pos;
size_t count = iov_iter_count(iter);
int overwrite = 0;
get_block_t *get_block_func = NULL;
@@ -3348,7 +3348,7 @@ static ssize_t ext4_ext_direct_IO(struct kiocb *iocb, struct iov_iter *iter,
/* Use the old path for reads and writes beyond i_size. */
if (iov_iter_rw(iter) != WRITE || final_size > inode->i_size)
- return ext4_ind_direct_IO(iocb, iter, offset);
+ return ext4_ind_direct_IO(iocb, iter);
BUG_ON(iocb->private == NULL);
@@ -3400,11 +3400,11 @@ static ssize_t ext4_ext_direct_IO(struct kiocb *iocb, struct iov_iter *iter,
BUG_ON(ext4_encrypted_inode(inode) && S_ISREG(inode->i_mode));
#endif
if (IS_DAX(inode))
- ret = dax_do_io(iocb, inode, iter, offset, get_block_func,
+ ret = dax_do_io(iocb, inode, iter, get_block_func,
ext4_end_io_dio, dio_flags);
else
ret = __blockdev_direct_IO(iocb, inode,
- inode->i_sb->s_bdev, iter, offset,
+ inode->i_sb->s_bdev, iter,
get_block_func,
ext4_end_io_dio, NULL, dio_flags);
@@ -3431,12 +3431,12 @@ static ssize_t ext4_ext_direct_IO(struct kiocb *iocb, struct iov_iter *iter,
return ret;
}
-static ssize_t ext4_direct_IO(struct kiocb *iocb, struct iov_iter *iter,
- loff_t offset)
+static ssize_t ext4_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
{
struct file *file = iocb->ki_filp;
struct inode *inode = file->f_mapping->host;
size_t count = iov_iter_count(iter);
+ loff_t offset = iocb->ki_pos;
ssize_t ret;
#ifdef CONFIG_EXT4_FS_ENCRYPTION
@@ -3456,9 +3456,9 @@ static ssize_t ext4_direct_IO(struct kiocb *iocb, struct iov_iter *iter,
trace_ext4_direct_IO_enter(inode, offset, count, iov_iter_rw(iter));
if (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))
- ret = ext4_ext_direct_IO(iocb, iter, offset);
+ ret = ext4_ext_direct_IO(iocb, iter);
else
- ret = ext4_ind_direct_IO(iocb, iter, offset);
+ ret = ext4_ind_direct_IO(iocb, iter);
trace_ext4_direct_IO_exit(inode, offset, count, iov_iter_rw(iter), ret);
return ret;
}