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-rw-r--r--fs/iomap.c3
-rw-r--r--include/linux/iomap.h9
2 files changed, 12 insertions, 0 deletions
diff --git a/fs/iomap.c b/fs/iomap.c
index 4aecd7c5dbd8..a1f71e64ea49 100644
--- a/fs/iomap.c
+++ b/fs/iomap.c
@@ -201,6 +201,9 @@ iomap_write_end(struct inode *inode, loff_t pos, unsigned len,
copied, page, NULL);
}
+ if (iomap->page_done)
+ iomap->page_done(inode, pos, copied, page, iomap);
+
if (ret < len)
iomap_write_failed(inode, pos, len);
return ret;
diff --git a/include/linux/iomap.h b/include/linux/iomap.h
index 10d6cff7f69a..45f43865b0f0 100644
--- a/include/linux/iomap.h
+++ b/include/linux/iomap.h
@@ -9,6 +9,7 @@ struct fiemap_extent_info;
struct inode;
struct iov_iter;
struct kiocb;
+struct page;
struct vm_area_struct;
struct vm_fault;
@@ -56,6 +57,14 @@ struct iomap {
struct block_device *bdev; /* block device for I/O */
struct dax_device *dax_dev; /* dax_dev for dax operations */
void *inline_data;
+
+ /*
+ * Called when finished processing a page in the mapping returned in
+ * this iomap. At least for now this is only supported in the buffered
+ * write path.
+ */
+ void (*page_done)(struct inode *inode, loff_t pos, unsigned copied,
+ struct page *page, struct iomap *iomap);
};
/*