3.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Namjae Jeon <namjae.j...@samsung.com>
commit e1ee60fd89670da61b0a4bda59f8ffb2b8abea63 upstream.
xfstests generic/091 is failing when mounting ext4 with data=journal.
I think that this regression is same problem that occurred prior to collapse
range issue. So ZERO RANGE also need to call ext4_force_commit as
collapse range.
Signed-off-by: Namjae Jeon <namjae.j...@samsung.com>
Signed-off-by: Ashish Sangwan <a.sang...@samsung.com>
Signed-off-by: Theodore Ts'o <ty...@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
fs/ext4/extents.c | 7 +++++++
1 file changed, 7 insertions(+)
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -4744,6 +4744,13 @@ static long ext4_zero_range(struct file
if (!S_ISREG(inode->i_mode))
return -EINVAL;
+ /* Call ext4_force_commit to flush all data in case of data=journal. */
+ if (ext4_should_journal_data(inode)) {
+ ret = ext4_force_commit(inode->i_sb);
+ if (ret)
+ return ret;
+ }
+
/*
* Write out all dirty pages to avoid race conditions
* Then release them.
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