ceph: fix append mode write
generic_write_checks() may update 'pos', so we need to pass 'pos'
to ceph_sync_write() and ceph_sync_direct_write();
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index c66d4b4..2eb02f8 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -537,7 +537,7 @@
* objects, rollback on failure, etc.)
*/
static ssize_t
-ceph_sync_direct_write(struct kiocb *iocb, struct iov_iter *from)
+ceph_sync_direct_write(struct kiocb *iocb, struct iov_iter *from, loff_t pos)
{
struct file *file = iocb->ki_filp;
struct inode *inode = file_inode(file);
@@ -553,7 +553,6 @@
int check_caps = 0;
int ret;
struct timespec mtime = CURRENT_TIME;
- loff_t pos = iocb->ki_pos;
size_t count = iov_iter_count(from);
if (ceph_snap(file_inode(file)) != CEPH_NOSNAP)
@@ -652,7 +651,8 @@
* correct atomic write, we should e.g. take write locks on all
* objects, rollback on failure, etc.)
*/
-static ssize_t ceph_sync_write(struct kiocb *iocb, struct iov_iter *from)
+static ssize_t
+ceph_sync_write(struct kiocb *iocb, struct iov_iter *from, loff_t pos)
{
struct file *file = iocb->ki_filp;
struct inode *inode = file_inode(file);
@@ -669,7 +669,6 @@
int check_caps = 0;
int ret;
struct timespec mtime = CURRENT_TIME;
- loff_t pos = iocb->ki_pos;
size_t count = iov_iter_count(from);
if (ceph_snap(file_inode(file)) != CEPH_NOSNAP)
@@ -924,9 +923,9 @@
/* we might need to revert back to that point */
data = *from;
if (file->f_flags & O_DIRECT)
- written = ceph_sync_direct_write(iocb, &data);
+ written = ceph_sync_direct_write(iocb, &data, pos);
else
- written = ceph_sync_write(iocb, &data);
+ written = ceph_sync_write(iocb, &data, pos);
if (written == -EOLDSNAPC) {
dout("aio_write %p %llx.%llx %llu~%u"
"got EOLDSNAPC, retrying\n",