diff options
Diffstat (limited to 'fs/iomap/buffered-io.c')
| -rw-r--r-- | fs/iomap/buffered-io.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c index 354b41d20e5d..c5ff13e0e7cf 100644 --- a/fs/iomap/buffered-io.c +++ b/fs/iomap/buffered-io.c @@ -785,13 +785,15 @@ again: if (mapping_writably_mapped(inode->i_mapping)) flush_dcache_page(page); - copied = iov_iter_copy_from_user_atomic(page, i, offset, bytes); + copied = copy_page_from_iter_atomic(page, offset, bytes, i); status = iomap_write_end(inode, pos, bytes, copied, page, iomap, srcmap); - cond_resched(); + if (unlikely(copied != status)) + iov_iter_revert(i, copied - status); + cond_resched(); if (unlikely(status == 0)) { /* * A short copy made iomap_write_end() reject the @@ -803,11 +805,9 @@ again: bytes = copied; goto again; } - copied = status; - iov_iter_advance(i, copied); - pos += copied; - written += copied; - length -= copied; + pos += status; + written += status; + length -= status; balance_dirty_pages_ratelimited(inode->i_mapping); } while (iov_iter_count(i) && length); |