| Message ID | 20240827051028.1751933-4-hch@lst.de (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | [01/10] iomap: handle a post-direct I/O invalidate race in iomap_write_delalloc_release | expand |
On Tue, Aug 27, 2024 at 07:09:50AM +0200, Christoph Hellwig wrote: > To fix short write error handling, We'll need to figure out what operation > iomap_file_buffered_write_punch_delalloc is called for. Pass the flags > argument on to it, and reorder the argument list to match that of > ->iomap_end so that the compiler only has to add the new punch argument > to the end of it instead of reshuffling the registers. > > Signed-off-by: Christoph Hellwig <hch@lst.de> Looks good, Reviewed-by: Darrick J. Wong <djwong@kernel.org> --D > --- > fs/iomap/buffered-io.c | 5 ++--- > fs/xfs/xfs_iomap.c | 5 +++-- > include/linux/iomap.h | 10 ++++++---- > 3 files changed, 11 insertions(+), 9 deletions(-) > > diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c > index 737a005082e035..34de9f58794ad5 100644 > --- a/fs/iomap/buffered-io.c > +++ b/fs/iomap/buffered-io.c > @@ -23,7 +23,6 @@ > > #define IOEND_BATCH_SIZE 4096 > > -typedef int (*iomap_punch_t)(struct inode *inode, loff_t offset, loff_t length); > /* > * Structure allocated for each folio to track per-block uptodate, dirty state > * and I/O completions. > @@ -1300,8 +1299,8 @@ static int iomap_write_delalloc_release(struct inode *inode, > * internal filesystem allocation lock > */ > int iomap_file_buffered_write_punch_delalloc(struct inode *inode, > - struct iomap *iomap, loff_t pos, loff_t length, > - ssize_t written, iomap_punch_t punch) > + loff_t pos, loff_t length, ssize_t written, unsigned flags, > + struct iomap *iomap, iomap_punch_t punch) > { > loff_t start_byte; > loff_t end_byte; > diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c > index 72c981e3dc9211..47b5c83588259e 100644 > --- a/fs/xfs/xfs_iomap.c > +++ b/fs/xfs/xfs_iomap.c > @@ -1231,8 +1231,9 @@ xfs_buffered_write_iomap_end( > struct xfs_mount *mp = XFS_M(inode->i_sb); > int error; > > - error = iomap_file_buffered_write_punch_delalloc(inode, iomap, offset, > - length, written, &xfs_buffered_write_delalloc_punch); > + error = iomap_file_buffered_write_punch_delalloc(inode, offset, length, > + written, flags, iomap, > + &xfs_buffered_write_delalloc_punch); > if (error && !xfs_is_shutdown(mp)) { > xfs_alert(mp, "%s: unable to clean up ino 0x%llx", > __func__, XFS_I(inode)->i_ino); > diff --git a/include/linux/iomap.h b/include/linux/iomap.h > index 6fc1c858013d1e..83da37d64d1144 100644 > --- a/include/linux/iomap.h > +++ b/include/linux/iomap.h > @@ -258,10 +258,6 @@ static inline const struct iomap *iomap_iter_srcmap(const struct iomap_iter *i) > > ssize_t iomap_file_buffered_write(struct kiocb *iocb, struct iov_iter *from, > const struct iomap_ops *ops); > -int iomap_file_buffered_write_punch_delalloc(struct inode *inode, > - struct iomap *iomap, loff_t pos, loff_t length, ssize_t written, > - int (*punch)(struct inode *inode, loff_t pos, loff_t length)); > - > int iomap_read_folio(struct folio *folio, const struct iomap_ops *ops); > void iomap_readahead(struct readahead_control *, const struct iomap_ops *ops); > bool iomap_is_partially_uptodate(struct folio *, size_t from, size_t count); > @@ -277,6 +273,12 @@ int iomap_truncate_page(struct inode *inode, loff_t pos, bool *did_zero, > const struct iomap_ops *ops); > vm_fault_t iomap_page_mkwrite(struct vm_fault *vmf, > const struct iomap_ops *ops); > + > +typedef int (*iomap_punch_t)(struct inode *inode, loff_t offset, loff_t length); > +int iomap_file_buffered_write_punch_delalloc(struct inode *inode, loff_t pos, > + loff_t length, ssize_t written, unsigned flag, > + struct iomap *iomap, iomap_punch_t punch); > + > int iomap_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, > u64 start, u64 len, const struct iomap_ops *ops); > loff_t iomap_seek_hole(struct inode *inode, loff_t offset, > -- > 2.43.0 > >
diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c index 737a005082e035..34de9f58794ad5 100644 --- a/fs/iomap/buffered-io.c +++ b/fs/iomap/buffered-io.c @@ -23,7 +23,6 @@ #define IOEND_BATCH_SIZE 4096 -typedef int (*iomap_punch_t)(struct inode *inode, loff_t offset, loff_t length); /* * Structure allocated for each folio to track per-block uptodate, dirty state * and I/O completions. @@ -1300,8 +1299,8 @@ static int iomap_write_delalloc_release(struct inode *inode, * internal filesystem allocation lock */ int iomap_file_buffered_write_punch_delalloc(struct inode *inode, - struct iomap *iomap, loff_t pos, loff_t length, - ssize_t written, iomap_punch_t punch) + loff_t pos, loff_t length, ssize_t written, unsigned flags, + struct iomap *iomap, iomap_punch_t punch) { loff_t start_byte; loff_t end_byte; diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c index 72c981e3dc9211..47b5c83588259e 100644 --- a/fs/xfs/xfs_iomap.c +++ b/fs/xfs/xfs_iomap.c @@ -1231,8 +1231,9 @@ xfs_buffered_write_iomap_end( struct xfs_mount *mp = XFS_M(inode->i_sb); int error; - error = iomap_file_buffered_write_punch_delalloc(inode, iomap, offset, - length, written, &xfs_buffered_write_delalloc_punch); + error = iomap_file_buffered_write_punch_delalloc(inode, offset, length, + written, flags, iomap, + &xfs_buffered_write_delalloc_punch); if (error && !xfs_is_shutdown(mp)) { xfs_alert(mp, "%s: unable to clean up ino 0x%llx", __func__, XFS_I(inode)->i_ino); diff --git a/include/linux/iomap.h b/include/linux/iomap.h index 6fc1c858013d1e..83da37d64d1144 100644 --- a/include/linux/iomap.h +++ b/include/linux/iomap.h @@ -258,10 +258,6 @@ static inline const struct iomap *iomap_iter_srcmap(const struct iomap_iter *i) ssize_t iomap_file_buffered_write(struct kiocb *iocb, struct iov_iter *from, const struct iomap_ops *ops); -int iomap_file_buffered_write_punch_delalloc(struct inode *inode, - struct iomap *iomap, loff_t pos, loff_t length, ssize_t written, - int (*punch)(struct inode *inode, loff_t pos, loff_t length)); - int iomap_read_folio(struct folio *folio, const struct iomap_ops *ops); void iomap_readahead(struct readahead_control *, const struct iomap_ops *ops); bool iomap_is_partially_uptodate(struct folio *, size_t from, size_t count); @@ -277,6 +273,12 @@ int iomap_truncate_page(struct inode *inode, loff_t pos, bool *did_zero, const struct iomap_ops *ops); vm_fault_t iomap_page_mkwrite(struct vm_fault *vmf, const struct iomap_ops *ops); + +typedef int (*iomap_punch_t)(struct inode *inode, loff_t offset, loff_t length); +int iomap_file_buffered_write_punch_delalloc(struct inode *inode, loff_t pos, + loff_t length, ssize_t written, unsigned flag, + struct iomap *iomap, iomap_punch_t punch); + int iomap_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, u64 start, u64 len, const struct iomap_ops *ops); loff_t iomap_seek_hole(struct inode *inode, loff_t offset,
To fix short write error handling, We'll need to figure out what operation iomap_file_buffered_write_punch_delalloc is called for. Pass the flags argument on to it, and reorder the argument list to match that of ->iomap_end so that the compiler only has to add the new punch argument to the end of it instead of reshuffling the registers. Signed-off-by: Christoph Hellwig <hch@lst.de> --- fs/iomap/buffered-io.c | 5 ++--- fs/xfs/xfs_iomap.c | 5 +++-- include/linux/iomap.h | 10 ++++++---- 3 files changed, 11 insertions(+), 9 deletions(-)