Advance the iter and return 0 or an error code for success or failure. Signed-off-by: Brian Foster <bfoster@xxxxxxxxxx> --- fs/dax.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/fs/dax.c b/fs/dax.c index 0f611209ee37..d0430ded4b83 100644 --- a/fs/dax.c +++ b/fs/dax.c @@ -1266,11 +1266,11 @@ static s64 dax_unshare_iter(struct iomap_iter *iter) u64 copy_len = iomap_length(iter); u32 mod; int id = 0; - s64 ret = 0; + s64 ret = iomap_length(iter); void *daddr = NULL, *saddr = NULL; if (!iomap_want_unshare_iter(iter)) - return iomap_length(iter); + return iomap_iter_advance(iter, &ret); /* * Extend the file range to be aligned to fsblock/pagesize, because @@ -1307,7 +1307,9 @@ static s64 dax_unshare_iter(struct iomap_iter *iter) out_unlock: dax_read_unlock(id); - return dax_mem2blk_err(ret); + if (ret < 0) + return dax_mem2blk_err(ret); + return iomap_iter_advance(iter, &ret); } int dax_file_unshare(struct inode *inode, loff_t pos, loff_t len, -- 2.48.1
