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authorChristoph Hellwig <hch@lst.de>2022-05-05 15:11:11 -0500
committerDavid Sterba <dsterba@suse.com>2022-05-16 17:17:32 +0200
commit786f847f43a54e63161474fe85a4f1764d871a35 (patch)
tree2031367c4c363ba3698a2625a87b5393971277ed /fs
parent908c54909ae72dcbf1d7e1440f7297187d06c275 (diff)
downloadlinux-786f847f43a54e63161474fe85a4f1764d871a35.tar.bz2
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 <djwong@kernel.org> Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/btrfs/inode.c2
-rw-r--r--fs/erofs/data.c2
-rw-r--r--fs/ext4/file.c4
-rw-r--r--fs/f2fs/file.c4
-rw-r--r--fs/gfs2/file.c4
-rw-r--r--fs/iomap/direct-io.c8
-rw-r--r--fs/xfs/xfs_file.c6
-rw-r--r--fs/zonefs/super.c4
8 files changed, 18 insertions, 16 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index eb951ac52d22..954e91b74d21 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -8167,7 +8167,7 @@ static const struct iomap_dio_ops btrfs_dio_ops = {
ssize_t btrfs_dio_rw(struct kiocb *iocb, struct iov_iter *iter, size_t done_before)
{
return iomap_dio_rw(iocb, iter, &btrfs_dio_iomap_ops, &btrfs_dio_ops,
- IOMAP_DIO_PARTIAL, done_before);
+ IOMAP_DIO_PARTIAL, NULL, done_before);
}
static int btrfs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
diff --git a/fs/erofs/data.c b/fs/erofs/data.c
index 780db1e5f4b7..91c11d5bb999 100644
--- a/fs/erofs/data.c
+++ b/fs/erofs/data.c
@@ -385,7 +385,7 @@ static ssize_t erofs_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
if (!err)
return iomap_dio_rw(iocb, to, &erofs_iomap_ops,
- NULL, 0, 0);
+ NULL, 0, NULL, 0);
if (err < 0)
return err;
}
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 6feb07e3e1eb..109d07629f81 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -76,7 +76,7 @@ static ssize_t ext4_dio_read_iter(struct kiocb *iocb, struct iov_iter *to)
return generic_file_read_iter(iocb, to);
}
- ret = iomap_dio_rw(iocb, to, &ext4_iomap_ops, NULL, 0, 0);
+ ret = iomap_dio_rw(iocb, to, &ext4_iomap_ops, NULL, 0, NULL, 0);
inode_unlock_shared(inode);
file_accessed(iocb->ki_filp);
@@ -565,7 +565,7 @@ static ssize_t ext4_dio_write_iter(struct kiocb *iocb, struct iov_iter *from)
iomap_ops = &ext4_iomap_overwrite_ops;
ret = iomap_dio_rw(iocb, from, iomap_ops, &ext4_dio_write_ops,
(unaligned_io || extend) ? IOMAP_DIO_FORCE_WAIT : 0,
- 0);
+ NULL, 0);
if (ret == -ENOTBLK)
ret = 0;
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 5b89af0f27f0..04bc8709314b 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -4309,7 +4309,7 @@ static ssize_t f2fs_dio_read_iter(struct kiocb *iocb, struct iov_iter *to)
*/
inc_page_count(sbi, F2FS_DIO_READ);
dio = __iomap_dio_rw(iocb, to, &f2fs_iomap_ops,
- &f2fs_iomap_dio_read_ops, 0, 0);
+ &f2fs_iomap_dio_read_ops, 0, NULL, 0);
if (IS_ERR_OR_NULL(dio)) {
ret = PTR_ERR_OR_ZERO(dio);
if (ret != -EIOCBQUEUED)
@@ -4527,7 +4527,7 @@ static ssize_t f2fs_dio_write_iter(struct kiocb *iocb, struct iov_iter *from,
if (pos + count > inode->i_size)
dio_flags |= IOMAP_DIO_FORCE_WAIT;
dio = __iomap_dio_rw(iocb, from, &f2fs_iomap_ops,
- &f2fs_iomap_dio_write_ops, dio_flags, 0);
+ &f2fs_iomap_dio_write_ops, dio_flags, NULL, 0);
if (IS_ERR_OR_NULL(dio)) {
ret = PTR_ERR_OR_ZERO(dio);
if (ret == -ENOTBLK)
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index 2556ae1f92ea..0b07d5a7bb81 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -835,7 +835,7 @@ retry:
pagefault_disable();
to->nofault = true;
ret = iomap_dio_rw(iocb, to, &gfs2_iomap_ops, NULL,
- IOMAP_DIO_PARTIAL, read);
+ IOMAP_DIO_PARTIAL, NULL, read);
to->nofault = false;
pagefault_enable();
if (ret <= 0 && ret != -EFAULT)
@@ -898,7 +898,7 @@ retry:
from->nofault = true;
ret = iomap_dio_rw(iocb, from, &gfs2_iomap_ops, NULL,
- IOMAP_DIO_PARTIAL, written);
+ IOMAP_DIO_PARTIAL, NULL, written);
from->nofault = false;
if (ret <= 0) {
if (ret == -ENOTBLK)
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);
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index 5bddb1e9e0b3..85c412107a10 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -225,7 +225,7 @@ xfs_file_dio_read(
ret = xfs_ilock_iocb(iocb, XFS_IOLOCK_SHARED);
if (ret)
return ret;
- ret = iomap_dio_rw(iocb, to, &xfs_read_iomap_ops, NULL, 0, 0);
+ ret = iomap_dio_rw(iocb, to, &xfs_read_iomap_ops, NULL, 0, NULL, 0);
xfs_iunlock(ip, XFS_IOLOCK_SHARED);
return ret;
@@ -534,7 +534,7 @@ xfs_file_dio_write_aligned(
}
trace_xfs_file_direct_write(iocb, from);
ret = iomap_dio_rw(iocb, from, &xfs_direct_write_iomap_ops,
- &xfs_dio_write_ops, 0, 0);
+ &xfs_dio_write_ops, 0, NULL, 0);
out_unlock:
if (iolock)
xfs_iunlock(ip, iolock);
@@ -612,7 +612,7 @@ retry_exclusive:
trace_xfs_file_direct_write(iocb, from);
ret = iomap_dio_rw(iocb, from, &xfs_direct_write_iomap_ops,
- &xfs_dio_write_ops, flags, 0);
+ &xfs_dio_write_ops, flags, NULL, 0);
/*
* Retry unaligned I/O with exclusive blocking semantics if the DIO
diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c
index e20e7c841489..777fe626c2b3 100644
--- a/fs/zonefs/super.c
+++ b/fs/zonefs/super.c
@@ -861,7 +861,7 @@ static ssize_t zonefs_file_dio_write(struct kiocb *iocb, struct iov_iter *from)
ret = zonefs_file_dio_append(iocb, from);
else
ret = iomap_dio_rw(iocb, from, &zonefs_iomap_ops,
- &zonefs_write_dio_ops, 0, 0);
+ &zonefs_write_dio_ops, 0, NULL, 0);
if (zi->i_ztype == ZONEFS_ZTYPE_SEQ &&
(ret > 0 || ret == -EIOCBQUEUED)) {
if (ret > 0)
@@ -996,7 +996,7 @@ static ssize_t zonefs_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
}
file_accessed(iocb->ki_filp);
ret = iomap_dio_rw(iocb, to, &zonefs_iomap_ops,
- &zonefs_read_dio_ops, 0, 0);
+ &zonefs_read_dio_ops, 0, NULL, 0);
} else {
ret = generic_file_read_iter(iocb, to);
if (ret == -EIO)