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Diffstat (limited to 'include/linux/iomap.h')
-rw-r--r--include/linux/iomap.h16
1 files changed, 11 insertions, 5 deletions
diff --git a/include/linux/iomap.h b/include/linux/iomap.h
index 24f8489583ca..6d1b08d0ae93 100644
--- a/include/linux/iomap.h
+++ b/include/linux/iomap.h
@@ -313,8 +313,8 @@ int iomap_writepages(struct address_space *mapping,
struct iomap_dio_ops {
int (*end_io)(struct kiocb *iocb, ssize_t size, int error,
unsigned flags);
- blk_qc_t (*submit_io)(const struct iomap_iter *iter, struct bio *bio,
- loff_t file_offset);
+ void (*submit_io)(const struct iomap_iter *iter, struct bio *bio,
+ loff_t file_offset);
};
/*
@@ -330,14 +330,20 @@ struct iomap_dio_ops {
*/
#define IOMAP_DIO_OVERWRITE_ONLY (1 << 1)
+/*
+ * When a page fault occurs, return a partial synchronous result and allow
+ * the caller to retry the rest of the operation after dealing with the page
+ * fault.
+ */
+#define IOMAP_DIO_PARTIAL (1 << 2)
+
ssize_t iomap_dio_rw(struct kiocb *iocb, struct iov_iter *iter,
const struct iomap_ops *ops, const struct iomap_dio_ops *dops,
- unsigned int dio_flags);
+ unsigned int dio_flags, size_t done_before);
struct iomap_dio *__iomap_dio_rw(struct kiocb *iocb, struct iov_iter *iter,
const struct iomap_ops *ops, const struct iomap_dio_ops *dops,
- unsigned int dio_flags);
+ unsigned int dio_flags, size_t done_before);
ssize_t iomap_dio_complete(struct iomap_dio *dio);
-int iomap_dio_iopoll(struct kiocb *kiocb, bool spin);
#ifdef CONFIG_SWAP
struct file;