Modify zero range to advance the iter directly. Replace the local pos
and length calculations with direct advances and loop based on iter
state instead.
Signed-off-by: Brian Foster <bfoster@xxxxxxxxxx>
---
fs/iomap/buffered-io.c | 15 +++++----------
1 file changed, 5 insertions(+), 10 deletions(-)
diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c
index 5e33e52eff15..e0ae46b11413 100644
--- a/fs/iomap/buffered-io.c
+++ b/fs/iomap/buffered-io.c
@@ -1343,15 +1343,12 @@ static inline int iomap_zero_iter_flush_and_stale(struct iomap_iter *i)
static loff_t iomap_zero_iter(struct iomap_iter *iter, bool *did_zero)
{
- loff_t pos = iter->pos;
- loff_t length = iomap_length(iter);
- loff_t written = 0;
-
do {
struct folio *folio;
int status;
size_t offset;
- size_t bytes = min_t(u64, SIZE_MAX, length);
+ size_t bytes = min_t(u64, SIZE_MAX, iomap_length(iter));
+ loff_t pos = iter->pos;
bool ret;
status = iomap_write_begin(iter, pos, bytes, &folio);
@@ -1374,14 +1371,12 @@ static loff_t iomap_zero_iter(struct iomap_iter *iter, bool *did_zero)
if (WARN_ON_ONCE(!ret))
return -EIO;
- pos += bytes;
- length -= bytes;
- written += bytes;
- } while (length > 0);
+ iomap_iter_advance(iter, bytes);
+ } while (iomap_length(iter) > 0);
if (did_zero)
*did_zero = true;
- return written;
+ return 0;
}
int
--
2.47.0
