iomap: drop unnecessary pos param from iomap_write_[begin|end]

iomap_write_begin() and iomap_write_end() both take the iter and
iter->pos as parameters. Drop the unnecessary pos parameter and
sample iter->pos within each function.

Signed-off-by: Brian Foster <[email protected]>
Link: https://lore.kernel.org/[email protected]
Reviewed-by: "Darrick J. Wong" <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Christian Brauner <[email protected]>

Author: Brian Foster

fs/iomap/buffered-io.c

@@ -774,11 +774,12 @@ static int iomap_write_begin_inline(const struct iomap_iter *iter,
 	return iomap_read_inline_data(iter, folio);
 }
 
-static int iomap_write_begin(struct iomap_iter *iter, loff_t pos,
-		size_t len, struct folio **foliop)
+static int iomap_write_begin(struct iomap_iter *iter, size_t len,
+		struct folio **foliop)
 {
 	const struct iomap_folio_ops *folio_ops = iter->iomap.folio_ops;
 	const struct iomap *srcmap = iomap_iter_srcmap(iter);
+	loff_t pos = iter->pos;
 	struct folio *folio;
 	int status = 0;
 
@@ -883,10 +884,11 @@ static void iomap_write_end_inline(const struct iomap_iter *iter,
  * Returns true if all copied bytes have been written to the pagecache,
  * otherwise return false.
  */
-static bool iomap_write_end(struct iomap_iter *iter, loff_t pos, size_t len,
-		size_t copied, struct folio *folio)
+static bool iomap_write_end(struct iomap_iter *iter, size_t len, size_t copied,
+		struct folio *folio)
 {
 	const struct iomap *srcmap = iomap_iter_srcmap(iter);
+	loff_t pos = iter->pos;
 
 	if (srcmap->type == IOMAP_INLINE) {
 		iomap_write_end_inline(iter, folio, pos, copied);
@@ -949,7 +951,7 @@ static int iomap_write_iter(struct iomap_iter *iter, struct iov_iter *i)
 			break;
 		}
 
-		status = iomap_write_begin(iter, iter->pos, bytes, &folio);
+		status = iomap_write_begin(iter, bytes, &folio);
 		if (unlikely(status)) {
 			iomap_write_failed(iter->inode, iter->pos, bytes);
 			break;
@@ -966,7 +968,7 @@ static int iomap_write_iter(struct iomap_iter *iter, struct iov_iter *i)
 			flush_dcache_folio(folio);
 
 		copied = copy_folio_from_iter_atomic(folio, offset, bytes, i);
-		written = iomap_write_end(iter, pos, bytes, copied, folio) ?
+		written = iomap_write_end(iter, bytes, copied, folio) ?
 			  copied : 0;
 
 		/*
@@ -1281,7 +1283,7 @@ static int iomap_unshare_iter(struct iomap_iter *iter)
 		bool ret;
 
 		bytes = min_t(u64, SIZE_MAX, bytes);
-		status = iomap_write_begin(iter, iter->pos, bytes, &folio);
+		status = iomap_write_begin(iter, bytes, &folio);
 		if (unlikely(status))
 			return status;
 		if (iomap->flags & IOMAP_F_STALE)
@@ -1292,7 +1294,7 @@ static int iomap_unshare_iter(struct iomap_iter *iter)
 		if (bytes > folio_size(folio) - offset)
 			bytes = folio_size(folio) - offset;
 
-		ret = iomap_write_end(iter, pos, bytes, bytes, folio);
+		ret = iomap_write_end(iter, bytes, bytes, folio);
 		__iomap_put_folio(iter, pos, bytes, folio);
 		if (WARN_ON_ONCE(!ret))
 			return -EIO;
@@ -1357,7 +1359,7 @@ static int iomap_zero_iter(struct iomap_iter *iter, bool *did_zero)
 		bool ret;
 
 		bytes = min_t(u64, SIZE_MAX, bytes);
-		status = iomap_write_begin(iter, iter->pos, bytes, &folio);
+		status = iomap_write_begin(iter, bytes, &folio);
 		if (status)
 			return status;
 		if (iter->iomap.flags & IOMAP_F_STALE)
@@ -1373,7 +1375,7 @@ static int iomap_zero_iter(struct iomap_iter *iter, bool *did_zero)
 		folio_zero_range(folio, offset, bytes);
 		folio_mark_accessed(folio);
 
-		ret = iomap_write_end(iter, pos, bytes, bytes, folio);
+		ret = iomap_write_end(iter, bytes, bytes, folio);
 		__iomap_put_folio(iter, pos, bytes, folio);
 		if (WARN_ON_ONCE(!ret))
 			return -EIO;