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iomap: pass flags to iomap_file_buffered_write_punch_delalloc

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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>
Link: https://lore.kernel.org/r/20240910043949.3481298-4-hch@lst.de
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Christoph Hellwig 2024-09-10 07:39:05 +03:00 committed by Christian Brauner
parent b53fdb215d
commit 11596dc3df
No known key found for this signature in database
GPG Key ID: 91C61BC06578DCA2
3 changed files with 14 additions and 12 deletions
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11
fs/iomap/buffered-io.c
View File

@ -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.
@ -1200,8 +1199,8 @@ static int iomap_write_delalloc_scan(struct inode *inode,
* require sprinkling this code with magic "+ 1" and "- 1" arithmetic and expose
* the code to subtle off-by-one bugs....
*/
static int iomap_write_delalloc_release(struct inode *inode,
loff_t start_byte, loff_t end_byte, iomap_punch_t punch)
static int iomap_write_delalloc_release(struct inode *inode, loff_t start_byte,
loff_t end_byte, unsigned flags, iomap_punch_t punch)
{
loff_t punch_start_byte = start_byte;
loff_t scan_end_byte = min(i_size_read(inode), end_byte);
@ -1301,8 +1300,8 @@ out_unlock:
* 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;
@ -1330,7 +1329,7 @@ int iomap_file_buffered_write_punch_delalloc(struct inode *inode,
if (start_byte >= end_byte)
return 0;
return iomap_write_delalloc_release(inode, start_byte, end_byte,
return iomap_write_delalloc_release(inode, start_byte, end_byte, flags,
punch);
}
EXPORT_SYMBOL_GPL(iomap_file_buffered_write_punch_delalloc);

5
fs/xfs/xfs_iomap.c
View File

@ -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);

10
include/linux/iomap.h
View File

@ -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, void *private);
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,