[PATCH 5.17 020/772] fs/ntfs3: Update valid size if -EIOCBQUEUED

Greg Kroah-Hartman
2022-06-07T20:21:28Z

From: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>

commit 52e00ea6b26e45fb8159e3b57cdde8d3f9bdd8e9 upstream.

Update valid size if write is still in I/O queue.
Fixes xfstest generic/240
Fixes: 82cae269cfa9 ("fs/ntfs3: Add initialization of super block")

Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/ntfs3/inode.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/fs/ntfs3/inode.c b/fs/ntfs3/inode.c
index 859951d785cb..879952254071 100644
--- a/fs/ntfs3/inode.c
+++ b/fs/ntfs3/inode.c
@@ -757,6 +757,7 @@ static ssize_t ntfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
loff_t vbo = iocb->ki_pos;
loff_t end;
int wr = iov_iter_rw(iter) & WRITE;
+ size_t iter_count = iov_iter_count(iter);
loff_t valid;
ssize_t ret;

@@ -770,10 +771,13 @@ static ssize_t ntfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
wr ? ntfs_get_block_direct_IO_W
: ntfs_get_block_direct_IO_R);

- if (ret <= 0)
+ if (ret > 0)
+ end = vbo + ret;
+ else if (wr && ret == -EIOCBQUEUED)
+ end = vbo + iter_count;
+ else
goto out;

- end = vbo + ret;
valid = ni->i_valid;
if (wr) {
if (end > valid && !S_ISBLK(inode->i_mode)) {
--
2.36.1