From: Andreas Gruenbacher agruenba@redhat.com
commit 2eb7509a05443048fb4df60b782de3f03c6c298b upstream
Add a wrapper around iomap_file_buffered_write. We'll add code for when the operation needs to be retried here later.
Signed-off-by: Andreas Gruenbacher agruenba@redhat.com Signed-off-by: Anand Jain anand.jain@oracle.com --- fs/gfs2/file.c | 27 +++++++++++++++++---------- 1 file changed, 17 insertions(+), 10 deletions(-)
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c index 1c8b747072cb..df5504214dd4 100644 --- a/fs/gfs2/file.c +++ b/fs/gfs2/file.c @@ -877,6 +877,20 @@ static ssize_t gfs2_file_read_iter(struct kiocb *iocb, struct iov_iter *to) return written ? written : ret; }
+static ssize_t gfs2_file_buffered_write(struct kiocb *iocb, struct iov_iter *from) +{ + struct file *file = iocb->ki_filp; + struct inode *inode = file_inode(file); + ssize_t ret; + + current->backing_dev_info = inode_to_bdi(inode); + ret = iomap_file_buffered_write(iocb, from, &gfs2_iomap_ops); + current->backing_dev_info = NULL; + if (ret > 0) + iocb->ki_pos += ret; + return ret; +} + /** * gfs2_file_write_iter - Perform a write to a file * @iocb: The io context @@ -928,9 +942,7 @@ static ssize_t gfs2_file_write_iter(struct kiocb *iocb, struct iov_iter *from) goto out_unlock;
iocb->ki_flags |= IOCB_DSYNC; - current->backing_dev_info = inode_to_bdi(inode); - buffered = iomap_file_buffered_write(iocb, from, &gfs2_iomap_ops); - current->backing_dev_info = NULL; + buffered = gfs2_file_buffered_write(iocb, from); if (unlikely(buffered <= 0)) { if (!ret) ret = buffered; @@ -944,7 +956,6 @@ static ssize_t gfs2_file_write_iter(struct kiocb *iocb, struct iov_iter *from) * the direct I/O range as we don't know if the buffered pages * made it to disk. */ - iocb->ki_pos += buffered; ret2 = generic_write_sync(iocb, buffered); invalidate_mapping_pages(mapping, (iocb->ki_pos - buffered) >> PAGE_SHIFT, @@ -952,13 +963,9 @@ static ssize_t gfs2_file_write_iter(struct kiocb *iocb, struct iov_iter *from) if (!ret || ret2 > 0) ret += ret2; } else { - current->backing_dev_info = inode_to_bdi(inode); - ret = iomap_file_buffered_write(iocb, from, &gfs2_iomap_ops); - current->backing_dev_info = NULL; - if (likely(ret > 0)) { - iocb->ki_pos += ret; + ret = gfs2_file_buffered_write(iocb, from); + if (likely(ret > 0)) ret = generic_write_sync(iocb, ret); - } }
out_unlock: