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iomap: pass private data to iomap_zero_range

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Allow the file system to pass private data which can be used by the
iomap_begin and iomap_end methods through the private pointer in the
iomap_iter structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20250206064035.2323428-11-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 2025-02-06 07:40:08 +01:00 committed by Christian Brauner
parent 02b39c4655
commit c6d1b8d154
No known key found for this signature in database
GPG Key ID: 91C61BC06578DCA2
4 changed files with 8 additions and 5 deletions
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3
fs/gfs2/bmap.c
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@ -1300,7 +1300,8 @@ static int gfs2_block_zero_range(struct inode *inode, loff_t from,
unsigned int length)
{
BUG_ON(current->journal_info);
return iomap_zero_range(inode, from, length, NULL, &gfs2_iomap_ops);
return iomap_zero_range(inode, from, length, NULL, &gfs2_iomap_ops,
NULL);
}
#define GFS2_JTRUNC_REVOKES 8192

6
fs/iomap/buffered-io.c
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@ -1391,13 +1391,14 @@ static loff_t iomap_zero_iter(struct iomap_iter *iter, bool *did_zero)
int
iomap_zero_range(struct inode *inode, loff_t pos, loff_t len, bool *did_zero,
const struct iomap_ops *ops)
const struct iomap_ops *ops, void *private)
{
struct iomap_iter iter = {
.inode = inode,
.pos = pos,
.len = len,
.flags = IOMAP_ZERO,
.private = private,
};
struct address_space *mapping = inode->i_mapping;
unsigned int blocksize = i_blocksize(inode);
@ -1465,7 +1466,8 @@ iomap_truncate_page(struct inode *inode, loff_t pos, bool *did_zero,
/* Block boundary? Nothing to do */
if (!off)
return 0;
return iomap_zero_range(inode, pos, blocksize - off, did_zero, ops);
return iomap_zero_range(inode, pos, blocksize - off, did_zero, ops,
NULL);
}
EXPORT_SYMBOL_GPL(iomap_truncate_page);

2
fs/xfs/xfs_iomap.c
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@ -1497,7 +1497,7 @@ xfs_zero_range(
return dax_zero_range(inode, pos, len, did_zero,
&xfs_dax_write_iomap_ops);
return iomap_zero_range(inode, pos, len, did_zero,
&xfs_buffered_write_iomap_ops);
&xfs_buffered_write_iomap_ops, NULL);
}
int

2
include/linux/iomap.h
View File

@ -313,7 +313,7 @@ bool iomap_dirty_folio(struct address_space *mapping, struct folio *folio);
int iomap_file_unshare(struct inode *inode, loff_t pos, loff_t len,
const struct iomap_ops *ops);
int iomap_zero_range(struct inode *inode, loff_t pos, loff_t len,
bool *did_zero, const struct iomap_ops *ops);
bool *did_zero, const struct iomap_ops *ops, void *private);
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,