The f_op->flush operation is the last chance to return a writeback
related error when closing a file. Ensure that we don't miss reporting
any errors by waiting for writeback to complete in cifs_flush before
proceeding.
Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>
---
fs/cifs/file.c | 11 +----------
1 files changed, 1 insertions(+), 10 deletions(-)
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 00c7262..4298c19 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -1628,16 +1628,7 @@ int cifs_flush(struct file *file, fl_owner_t id)
struct inode *inode = file->f_path.dentry->d_inode;
int rc = 0;
- /* Rather than do the steps manually:
- lock the inode for writing
- loop through pages looking for write behind data (dirty pages)
- coalesce into contiguous 16K (or smaller) chunks to write to server
- send to server (prefer in parallel)
- deal with writebehind errors
- unlock inode for writing
- filemapfdatawrite appears easier for the time being */
-
- rc = filemap_fdatawrite(inode->i_mapping);
+ rc = filemap_write_and_wait(inode->i_mapping);
/* reset wb rc if we were able to write out dirty pages */
if (!rc) {
rc = CIFS_I(inode)->write_behind_rc;
--
1.7.2.3
--
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