iomap: pass private data to iomap_truncate_page

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/20250206064035.2323428-12-hch@lst.de
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>

diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c
index 382647fda1d106b0530be4166b5b3a1373fbbca7..3458f97d1b1e1e09a17b134c0243c6d6ed491073 100644 (file)
--- a/fs/iomap/buffered-io.c
+++ b/fs/iomap/buffered-io.c
@@ -1458,7 +1458,7 @@ EXPORT_SYMBOL_GPL(iomap_zero_range);
 
 int
 iomap_truncate_page(struct inode *inode, loff_t pos, bool *did_zero,
-               const struct iomap_ops *ops)
+               const struct iomap_ops *ops, void *private)
 {
        unsigned int blocksize = i_blocksize(inode);
        unsigned int off = pos & (blocksize - 1);
@@ -1467,7 +1467,7 @@ iomap_truncate_page(struct inode *inode, loff_t pos, bool *did_zero,
        if (!off)
                return 0;
        return iomap_zero_range(inode, pos, blocksize - off, did_zero, ops,
-                       NULL);
+                       private);
 }
 EXPORT_SYMBOL_GPL(iomap_truncate_page);
 

diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index 3410c55f544a82fae3d7667ae60e9dcfa79d8015..5dd0922fe2d1d0c916a0df659d6cf970a977f86d 100644 (file)
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -1512,5 +1512,5 @@ xfs_truncate_page(
                return dax_truncate_page(inode, pos, did_zero,
                                        &xfs_dax_write_iomap_ops);
        return iomap_truncate_page(inode, pos, did_zero,
-                                  &xfs_buffered_write_iomap_ops);
+                                  &xfs_buffered_write_iomap_ops, NULL);
 }

diff --git a/include/linux/iomap.h b/include/linux/iomap.h
index eddf524ac749834878ac28f426ee050a5b033fc7..022d7f338c68df71619aa1a873655e970d8bb3b0 100644 (file)
--- a/include/linux/iomap.h
+++ b/include/linux/iomap.h
@@ -315,7 +315,7 @@ int iomap_file_unshare(struct inode *inode, loff_t pos, loff_t len,
 int iomap_zero_range(struct inode *inode, loff_t pos, loff_t len,
                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);
+               const struct iomap_ops *ops, void *private);
 vm_fault_t iomap_page_mkwrite(struct vm_fault *vmf, const struct iomap_ops *ops,
                void *private);
 typedef void (*iomap_punch_t)(struct inode *inode, loff_t offset, loff_t length,